SBU: Leather Chemicals BL SANDESH VOL 2 | BL-LC-04 | JANUARY 2018 INDUSTRY NEWS Special Package Tax incentives & Labour Reforms Goods & Service Tax New Products from BL Balsyn ® MP40(SPL) Government of India approved a Rs.2600 crore special package for leather and footwear sector as this sector has the potential to generate 3.24 lakh new jobs in three years. This package would lead to employment generation, development of infrastructure, facilitate additional investments and increase in production. Enhanced tax incentives would attract large scale investments in this sector. This includes enhancing the scope of Income Tax section 80JJAA for providing deduction to an Indian company engaged in manufacture of goods in a factory towards additional wages paid for three years to new workmen. Moreover the provisions of 240 days employment also relaxed to 150 day per year to a workman. In order to attract large scale investments at global scale, the regulatory frame work for labour related issues is proposed to be addressed by introduction of fixed term employment by considering the seasonal nature of leather, footwear and accessories industry. (Source: economic times 15th Dec 2017). We have stepped into the year 2018 with lot of hope and enthusiasm. I am sure, all your wishes will be fulfilled. Recent developments like education in GST and Government’s approval of 2600 Crore for Leather Sector, will improve leather business. Once again I am happy to connect through BL Sandesh. This time we have come up with new product MP40 (SPL) to cater your demands. It’s a stable product and improves Chrome dispersion. Please try it. I would like to hear feedback from you all. I am very proud to inform you all that our manufacturing facility received Manufacturing Excellence Award from the International Body IRIM. Please don’t miss the interesting article by our R&D Team “An Approach to Reduce the Possibilities of Chromium (VI) Formation with Balsyn SAR”. “Happy & Prosperous New Year”. I would like to meet you all in Leather Fair 2018. Our Stall Number is H3-19-B . Advance Wishes to have Successful Leather Fair 2018 (IILF 2018). GST Council announced to reduce GST rate of leather goods and garments from 28 % to 18 % , finished leather from 12 % to 5 %, job work services for manufacture of leather goods and footwear from 18% to 5% and common effluent treatment plant services from 18 % to 12 % to boost leather exports and also to increase competitiveness in the tanning sector. (Source: Outlook 14th Nov 2017, 25th GST council meet 18th Jan 2018) BL had developed an acrylic polymer emulsion “Balsyn MP40 (SPL)” for the usage in chrome tanning, rechroming and in retanning. This Syntan can be used for all kind of chrome and semi chrome tanned leathers from 3-6 % to improve plumbness, fine and smooth grain, inner softness, tightness, and also to improve chrome exhaustion. This product is highly stable in pickle, Chrome & Rechrome pH, thus improves chrome dispersion and exhaustion. customercare email id: lc.chn.customercare @balmerlawrie.com. www.balmerlawrie.com COO’S CORNER Greetings from BL. ------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------
Transcript
SBU: Leather Chemicals
BL SANDESH
VOL 2 | BL-LC-04 | JANUARY 2018
INDUSTRY NEWS
Special Package
Tax incentives & Labour Reforms
Goods & Service Tax
New Products from BL Balsyn ® MP40(SPL)
Government of India approved a Rs.2600 crore special package for leather and footwear sector as this sector has the potential to generate 3.24 lakh new jobs in three years. This package would lead to employment generation, development of infrastructure, facilitate additional investments and increase in production.
Enhanced tax incentives would attract large scale investments in this sector. This includes enhancing the scope of Income Tax section 80JJAA for providing deduction to an Indian company engaged in manufacture of goods in a factory towards additional wages paid for three years to new workmen. Moreover the provisions of 240 days employment also relaxed to 150 day per year to a workman. In order to attract large scale investments at global scale, the regulatory frame work for labour related issues is proposed to be addressed by introduction of fixed term employment by considering the seasonal nature of leather, footwear and accessories industry. (Source: economic times 15th Dec 2017).
We have stepped into the year 2018 with lot of hope and enthusiasm. I am sure, all your wishes will be fulfilled. Recent developments like education in GST and Government’s approval of 2600 Crore for Leather Sector, will improve leather business. Once again I am happy to connect through BL Sandesh. This time we have come up with new product MP40 (SPL) to cater your demands. It’s a stable product and improves Chrome dispersion. Please try it. I would like to hear feedback from you all. I am very proud to inform you all that our manufacturing facility received Manufacturing Excellence Award from the International Body IRIM. Please don’t miss the interesting article by our R&D Team “An Approach to Reduce the Possibilities of Chromium (VI) Formation with Balsyn SAR”.
“Happy & Prosperous New Year”.
I would like to meet you all in Leather Fair 2018. Our Stall Number is H3-19-B . Advance Wishes to have Successful Leather Fair 2018 (IILF 2018).
GST Council announced to reduce GST rate of leather goods and garments from 28 % to 18 % , finished leather from 12 % to 5 %, job work services for manufacture of leather goods and footwear from 18% to 5% and common effluent treatment plant services from 18 % to 12 % to boost leather exports and also to increase competitiveness in the tanning sector.
(Source: Outlook 14th Nov 2017, 25th GST council meet 18th Jan 2018)
BL had developed an acrylic polymer emulsion “Balsyn MP40 (SPL)” for the usage in chrome tanning, rechroming and in retanning. This Syntan can be used for all kind of chrome and semi chrome tanned leathers from 3-6 % to improve plumbness, fine and smooth grain, inner softness, tightness, and also to improve chrome exhaustion. This product is highly stable in pickle, Chrome & Rechrome pH, thus improves chrome dispersion and exhaustion.
INDUSTRY NEWS Special Package Government of India approved a Rs.2600 crore special package for
leather and footwear sector as this sector has the potential to generate 3.24 lakh new jobs in three years. This package would lead to employment generation, development of infrastructure, facilitate additional investments and increase in production.
Tax incentives & fixed term employment Enhanced tax incentives would attract large scale investments in this
sector. This includes enhancing the scope of Income Tax section 80JJAA for providing deduction to an Indian company engaged in manufacture of goods in a factory towards additional wages paid for three years to new workmen. Moreover the provisions of 240 days employment also relaxed to 150 day per year to a workman.
In order to attract large scale investments at global scale, the regulatory frame work for labour related issues is proposed to be addressed by introduction of fixed term employment by considering the seasonal nature of leather, footwear and accessories industry. (Source: economic times 15 Dec
2017)
Goods & Service Tax GST Council announced to cut GST rate of leather goods and garments from
28 % to 18 % , finished leather from 12 % to 5 % and common effluent treatment plant from 18 % to 12 %. These measures will boost leather exports and also will increase competitiveness in the tanning sector.
(Source: Outlook 14 Nov 2017, GST council meet 18th
INDUSTRY NEWS Special Package Government of India approved a Rs.2600 crore special package for
leather and footwear sector as this sector has the potential to generate 3.24 lakh new jobs in three years. This package would lead to employment generation, development of infrastructure, facilitate additional investments and increase in production.
Tax incentives & fixed term employment Enhanced tax incentives would attract large scale investments in this
sector. This includes enhancing the scope of Income Tax section 80JJAA for providing deduction to an Indian company engaged in manufacture of goods in a factory towards additional wages paid for three years to new workmen. Moreover the provisions of 240 days employment also relaxed to 150 day per year to a workman.
In order to attract large scale investments at global scale, the regulatory frame work for labour related issues is proposed to be addressed by introduction of fixed term employment by considering the seasonal nature of leather, footwear and accessories industry. (Source: economic times 15 Dec
2017)
Goods & Service Tax GST Council announced to cut GST rate of leather goods and garments from
28 % to 18 % , finished leather from 12 % to 5 % and common effluent treatment plant from 18 % to 12 %. These measures will boost leather exports and also will increase competitiveness in the tanning sector.
(Source: Outlook 14 Nov 2017, GST council meet 18th
INDUSTRY NEWS Special Package Government of India approved a Rs.2600 crore special package for
leather and footwear sector as this sector has the potential to generate 3.24 lakh new jobs in three years. This package would lead to employment generation, development of infrastructure, facilitate additional investments and increase in production.
Tax incentives & fixed term employment Enhanced tax incentives would attract large scale investments in this
sector. This includes enhancing the scope of Income Tax section 80JJAA for providing deduction to an Indian company engaged in manufacture of goods in a factory towards additional wages paid for three years to new workmen. Moreover the provisions of 240 days employment also relaxed to 150 day per year to a workman.
In order to attract large scale investments at global scale, the regulatory frame work for labour related issues is proposed to be addressed by introduction of fixed term employment by considering the seasonal nature of leather, footwear and accessories industry. (Source: economic times 15 Dec
2017)
Goods & Service Tax GST Council announced to cut GST rate of leather goods and garments from
28 % to 18 % , finished leather from 12 % to 5 % and common effluent treatment plant from 18 % to 12 %. These measures will boost leather exports and also will increase competitiveness in the tanning sector.
(Source: Outlook 14 Nov 2017, GST council meet 18th
---------------------------------------------------------------------------------------------- New Products from BL Balsyn ® MP40(SPL)
Balmer Lawrie SBU: Leather Chemicals has been honored with National Award for Manufacturing Competitiveness (NAMC 2017) for its Chennai leather chemicals manufacturing facilities by the International Research Institute for Manufacturing (IRIM). COO(Leather Chemicals) and Associate Vice President(works) receiving the unique award for the implementation of non-conventional and advanced approach in manufacturing. ------------------------------------------------------------------------------------------------------------------------------ AN APPROACH TO REDUCE THE POSSIBILITIES OF CHROMIUM (VI) FORMATION IN LEATHER WITH BALSYN SAR Introduction Basic Chromium Sulphate is the most popular tanning agent in global leather production and 90 % of hides and skins are being tanned with this tanning material. This tanning involves
environmental risks from the possible oxidation of Cr(III) to Cr(VI) and this hexavalent chromium is known to be toxic to animals and humans. More
over the residual chrome in chrome tanning and rechroming waste water is the main origin of chrome in effluent. A considerable amount of chrome is also released from leather in almost all the post tanning processes such as washing, neutralization, retanning with various retanning agents, dyeing, fatliquoring and acid fixation. As a result more than 60 % of chrome added is discharged into waste water. This fact demonstrates that the chrome that effectively reacts with collagen and produce tanning action have not been released during these processes. Hence different products and process emerged to control chrome load in the effluent and also to avoid the formation of chromium (VI) from released Cr(III). Here Balmer Lawrie followed a strategy to improve chrome fixation or to reduce the presence of free/unfixed chrome in leather in order to reduce chrome discharge in leather
BL had developed an Acrylic Polymer emulsion ‘Balsyn MP40 (SPL)’ for the usage in chrome tanning, rechroming and retanning. This Syntan can be used for all kind of chrome and semi chrome tanned leathers from 3-6 % to improve plumbness, fine and smooth grain, inner softness, tightness, and also to improve chrome exhaustion. This product is highly stable in pickle pH, thus improves chrome dispersion and
BL SANDESH
reactions with possible different out comes. This paper deals with new chemistry in synthetic tanning agent.
Hyperbranched and dendrimers are extensively used in coatings and pharmaceuticals. Hyper branched polymers are under the class of Dendritic macromolecules. During the last 15 years, scientists, especially polymer chemists, have introduced a new philosophy of `dendritic macromolecules' and prepared globular and spherical molecules in addition to the more conventional linear ones. .Dendritic 14-16 macromolecules are monodisperse and classified into dendrons, dendrimers. Hyperbranched polymers 17-22, which are polydisperse are composed of successive branching units Illustration of more branching in Hyper branched polymers
Synthesis Methodology
We have followed a recently developed a facile and generic synthetic methodology (the “Strathclyde methodology”) for the high yielding synthesis of branched vinyl polymers using conventional free radical polymerization. The methodology involves the simple free radical copolymerization of a vinyl monomer with a difunctional (or multifunctional) comonomer, wherein cross-linking and network formation is inhibited by use of appropriate levels of a stoichiometric free radical chain transfer agent, such as a thiol, or indeed a catalytic chain transfer agent. This process is patented23.
Scheme-1
In general, leather trial results showed that these branched polymers behave as a soft acrylic syntan with less surface hardening characteristics and improved bleaching.
These branched polymers with multiple functionalities also served as a better dispersing and fixing agent for basic chromium sulphate (BCS); importantly, after chrome tanning the residual chromium (measured as % Cr2O3) left behind in exhaustion was considerably reduced23.
The dendrimers can be used like in drug delivery for sustained release of sodium sulphides in unhairing. This could be bring down the load in effluents.
Conclusion: This article is to highlight the various possible
chemistries to be explored. The suggestive pathways needs further studies and would require modifications. The success pathways in other areas are to be ‘technologically translated‘. Much more organic reactions can be adopted and the culture of interdisciplinary research with an amalgamation of scientists in different fields of science and technologists could contribute and unravel the interesting aspects in this field of leather. The next issue will address about Fatliquors, beam house and finishing.
(Ref: Graves , US Pat. 2205882 , 1940,Tomalia DA, Naylor AM, Goddard III WA. Angew Chem, Int Ed Engl 1990;29:138-175. Newkome GR, Moore®eld CN, Voegtle . Dendritic molecules : Concepts , Synthesis , perspectives, NewYork : VCH, 1996FreÂchet JMJ. Science 1994;263:1710-1715. Voit BI. Acta Polym 1995; 46:87-99.Newkome GR, Moore®eld CN, VoÈ gtle F. Dendritic molecules: concepts, syntheses, perspectives. New York: VCH, 1996. FreÂchet JMJ, Hawker CJ, Gitsov I, Leon JW. J Macromol Sci, Pure Appl Chem 1996;A33:1399-1425. Malmstro È m E, Hult A. J Macromol Sci, Rev, Macromol Chem Phys 1997; C37:555-579. Baudry R., Sherrington D.C.., Macromolecules 2006; 39(4) : 1455-1460
All rights reserved by Balmer lawrie & Co.Ltd. All informationsor knowledge sharing only and not for commercial
Balmer Lawrie entered into Leather Chemical business in 1983 by taking up manufacture of synthetic fatliquors in Chennai. Over the years, Balmer Lawrie has added several new products and formulations, developed in-house in its modern R & D facilities at Chennai. Balmer Lawrie is certified with ISO 9001:2015, ISO 14001:2015, OHSAS 18001:2007. Balmer Lawrie is doing significant volume of export to China, Bangladesh, Korea, Iran, Ethiopia, Thailand, Indonesia, Vietnam, Turkey & Egypt.
---------------------------------------------------------------------------------------------- New Products from BL Balsyn ® MP40(SPL)
Balmer Lawrie SBU: Leather Chemicals has been honored with National Award for Manufacturing Competitiveness (NAMC 2017) for its Chennai leather chemicals manufacturing facilities by the International Research Institute for Manufacturing (IRIM). COO(Leather Chemicals) and Associate Vice President(works) receiving the unique award for the implementation of non-conventional and advanced approach in manufacturing. ------------------------------------------------------------------------------------------------------------------------------ AN APPROACH TO REDUCE THE POSSIBILITIES OF CHROMIUM (VI) FORMATION IN LEATHER WITH BALSYN SAR Introduction Basic Chromium Sulphate is the most popular tanning agent in global leather production and 90 % of hides and skins are being tanned with this tanning material. This tanning involves
environmental risks from the possible oxidation of Cr(III) to Cr(VI) and this hexavalent chromium is known to be toxic to animals and humans. More
over the residual chrome in chrome tanning and rechroming waste water is the main origin of chrome in effluent. A considerable amount of chrome is also released from leather in almost all the post tanning processes such as washing, neutralization, retanning with various retanning agents, dyeing, fatliquoring and acid fixation. As a result more than 60 % of chrome added is discharged into waste water. This fact demonstrates that the chrome that effectively reacts with collagen and produce tanning action have not been released during these processes. Hence different products and process emerged to control chrome load in the effluent and also to avoid the formation of chromium (VI) from released Cr(III). Here Balmer Lawrie followed a strategy to improve chrome fixation or to reduce the presence of free/unfixed chrome in leather in order to reduce chrome discharge in leather
BL had developed an Acrylic Polymer emulsion ‘Balsyn MP40 (SPL)’ for the usage in chrome tanning, rechroming and retanning. This Syntan can be used for all kind of chrome and semi chrome tanned leathers from 3-6 % to improve plumbness, fine and smooth grain, inner softness, tightness, and also to improve chrome exhaustion. This product is highly stable in pickle pH, thus improves chrome dispersion and
An approach to reduce the possibilities of chromium (VI) formation in leather with Balsyn SARIntroduction
Tanning Agent, Dyes and Pigments
Neutralization
Heating/Sunlight drying/Photo ageing
Fatliquoring and Bleaching AgentSource of Cr(VI) formation in leather making
Balmer Lawrie SBU: Leather Chemicals has been honored with National Award for Manufacturing Competitiveness (NAMC 2017) for its Chennai leather chemicals manufacturing facilities by the International Research Institute for Manufacturing (IRIM). COO(Leather Chemicals) and Associate Vice President(works) receiving the unique award for the implementation of non-conventional and advanced approach in manufacturing.
Basic Chromium Sulphate is the most popular tanning agent in global leather production and 90 % of hides and skins are being tanned with this tanning material.
This tanning involves environmental risks from the possible oxidation of Cr(III) to Cr(VI) and this hexavalent chromium is known to be toxic to animals and humans. More over the residual chrome in chrome tanning and rechroming waste water is the main origin of chrome in effluent. A considerable amount of chrome is also released from leather in almost all the post tanning processes such as washing, neutralization, retanning with various retanning agents, dyeing, fatliquoring and acid fixation. As a result more than 60 % of chrome added is discharged into waste water. This fact demonstrates that the chrome that effectively reacts with collagen and produce tanning action have not been released during these processes. Hence different products and process emerged to control chrome load in the effluent and also to avoid the formation of chromium (VI) from released Cr(III). Here Balmer Lawrie followed a strategy to improve chrome fixation or to reduce the presence of free/unfixed chrome in leather in order to reduce chrome discharge in leather processing and also to avoid/reduce the possibilities Cr(VI) formation in leather through its product Balsyn SAR. This paper deals with the direct and indirect source of Cr(VI) in leather and the role of Balsyn SAR to reduce the possibilities of Cr(VI) formation in leather as well as to reduce the chrome load in the environment through chrome fixation.
It is a fact that Cr(III) can be oxidized under certain conditions to a hazardous hexavalent form of Cr(VI). The formation of Cr(VI) is through direct sources and indirect sources such as auxiliaries, chemicals, process parameters and storage condition due to the presence of oxidizing agents in specialty chemicals used for leather making. Hence a need for scientific assessment is emerged to exclude this oxidation during normal condition of use.
The presence of unreduced chromium in the Basic Chromium Sulphate, metal complex dyes and in organic pigments based on lead chromate are the direct source of Cr(VI) formation in leather.
At higher pH during wet blue leather neutralization with sodium bi carbonate, ammonia and cationic auxiliaries may promote the oxidation of Cr(III). It has been reported that leather samples treated with above chemicals shows the presence of Cr(VI)in extreme condition at 80⁰C for 24 hrs. There is no direct correlation between the final pH and Cr(VI) conversion was reported.
Thermal ageing or exposure to UV light can induce the formation of large amounts of Cr(VI). It is also reported that the natural light or UV light produced by lamp of 366 nm can induce the formation of Cr(VI).
Presence of free radicals present in the single or multiple unsaturated fatty acid in fatliquor products based on natural oil is released in the
presence of UV light can significantly cause the formation of Cr(VI). During ageing, the double bonds in fatliquor base are prone to be attacked by oxygen. Auto oxidation leads to formation of radicals and hydro peroxides. Peroxides formed are likely to react with the trivalent chromium and converting into hexavalent during ageing.
BL SANDESH
---------------------------------------------------------------------------------------------- New Products from BL Balsyn ® MP40(SPL)
Balmer Lawrie SBU: Leather Chemicals has been honored with National Award for Manufacturing Competitiveness (NAMC 2017) for its Chennai leather chemicals manufacturing facilities by the International Research Institute for Manufacturing (IRIM). COO(Leather Chemicals) and Associate Vice President(works) receiving the unique award for the implementation of non-conventional and advanced approach in manufacturing. ------------------------------------------------------------------------------------------------------------------------------ AN APPROACH TO REDUCE THE POSSIBILITIES OF CHROMIUM (VI) FORMATION IN LEATHER WITH BALSYN SAR Introduction Basic Chromium Sulphate is the most popular tanning agent in global leather production and 90 % of hides and skins are being tanned with this tanning material. This tanning involves
environmental risks from the possible oxidation of Cr(III) to Cr(VI) and this hexavalent chromium is known to be toxic to animals and humans. More
over the residual chrome in chrome tanning and rechroming waste water is the main origin of chrome in effluent. A considerable amount of chrome is also released from leather in almost all the post tanning processes such as washing, neutralization, retanning with various retanning agents, dyeing, fatliquoring and acid fixation. As a result more than 60 % of chrome added is discharged into waste water. This fact demonstrates that the chrome that effectively reacts with collagen and produce tanning action have not been released during these processes. Hence different products and process emerged to control chrome load in the effluent and also to avoid the formation of chromium (VI) from released Cr(III). Here Balmer Lawrie followed a strategy to improve chrome fixation or to reduce the presence of free/unfixed chrome in leather in order to reduce chrome discharge in leather
BL had developed an Acrylic Polymer emulsion ‘Balsyn MP40 (SPL)’ for the usage in chrome tanning, rechroming and retanning. This Syntan can be used for all kind of chrome and semi chrome tanned leathers from 3-6 % to improve plumbness, fine and smooth grain, inner softness, tightness, and also to improve chrome exhaustion. This product is highly stable in pickle pH, thus improves chrome dispersion and
BL SANDESH
BL SANDESH
---------------------------------------------------------------------------------------------- New Products from BL Balsyn ® MP40(SPL)
Balmer Lawrie SBU: Leather Chemicals has been honored with National Award for Manufacturing Competitiveness (NAMC 2017) for its Chennai leather chemicals manufacturing facilities by the International Research Institute for Manufacturing (IRIM). COO(Leather Chemicals) and Associate Vice President(works) receiving the unique award for the implementation of non-conventional and advanced approach in manufacturing. ------------------------------------------------------------------------------------------------------------------------------ AN APPROACH TO REDUCE THE POSSIBILITIES OF CHROMIUM (VI) FORMATION IN LEATHER WITH BALSYN SAR Introduction Basic Chromium Sulphate is the most popular tanning agent in global leather production and 90 % of hides and skins are being tanned with this tanning material. This tanning involves
environmental risks from the possible oxidation of Cr(III) to Cr(VI) and this hexavalent chromium is known to be toxic to animals and humans. More
over the residual chrome in chrome tanning and rechroming waste water is the main origin of chrome in effluent. A considerable amount of chrome is also released from leather in almost all the post tanning processes such as washing, neutralization, retanning with various retanning agents, dyeing, fatliquoring and acid fixation. As a result more than 60 % of chrome added is discharged into waste water. This fact demonstrates that the chrome that effectively reacts with collagen and produce tanning action have not been released during these processes. Hence different products and process emerged to control chrome load in the effluent and also to avoid the formation of chromium (VI) from released Cr(III). Here Balmer Lawrie followed a strategy to improve chrome fixation or to reduce the presence of free/unfixed chrome in leather in order to reduce chrome discharge in leather
BL had developed an Acrylic Polymer emulsion ‘Balsyn MP40 (SPL)’ for the usage in chrome tanning, rechroming and retanning. This Syntan can be used for all kind of chrome and semi chrome tanned leathers from 3-6 % to improve plumbness, fine and smooth grain, inner softness, tightness, and also to improve chrome exhaustion. This product is highly stable in pickle pH, thus improves chrome dispersion and
BL SANDESH
processing and also to avoid/reduce the possibilities Cr(VI) formation in leather through its product Balsyn SAR. This paper deals with the direct and indirect source of Cr(VI) in leather and the role of Balsyn SAR to reduce the possibilities of Cr(VI) formation in leather as well as to reduce the chrome load in the environment through chrome fixation. Source of Cr(VI) formation in leather making
It is a fact that Cr(III) can be oxidized under certain conditions to a hazardous hexavalent form of Cr(VI). The formation of Cr(VI) is through direct sources and indirect sources such as auxiliaries, chemicals, process parameters and storage condition due to the presence of oxidizing agents in specialty chemicals used for leather making. Hence a need for scientific assessment is emerged to exclude this oxidation during normal condition of use. Tanning Agent, Dyes and Pigments
The presence of unreduced chromium in the Basic Chromium Sulphate, metal complex dyes and in organic pigments based on lead chromate are the direct source of Cr(VI) formation in leather. Neutralization At higher pH during wet blue leather neutralization with sodium bi carbonate, ammonia and cationic auxiliaries may promote the oxidation of Cr(III). It has been reported that leather samples treated with above chemicals shows the presence of Cr(VI)in extreme condition at 80⁰C for 24 hrs. There is no direct correlation between the final pH and Cr(VI) conversion was reported.
Heating/Sunlight drying/Photo ageing
Thermal ageing or exposure to UV light can induce the formation of large amounts of Cr(VI). It is also reported that the natural light or UV light produced by lamp of 366 nm can induce the formation of Cr(VI). Fatliquoring and Bleaching Agent
Presence of free radicals present in the single or multiple unsaturated fatty acid in fatliquor products based on natural oil is released in the presence of UV light can significantly cause the formation of Cr(VI) . During ageing, the double bonds in fatliquor base are prone to be attacked by oxygen. Auto oxidation leads to formation of radicals and hydro peroxides. Peroxides formed are likely to react with the trivalent chromium and converting into hexavalent during ageing. Bleaching agents are also source for free radicals. From all the above said sources it was understood that the formation of Cr(VI) is due to the presence of free/extractable/leachable/unfixed/ soluble Cr (III) in the leather.
Experiment was done to show the presence of Balsyn SAR in rechroming to aid in chrome fixation and thus helps in reduce the possibilities of Cr(VI) formation in leather.
Process adopted for experimental trials Rechroming was done for wet blue goat leather having thickness of 1.0/1.1 mm with the
BL SANDESH
processing and also to avoid/reduce the possibilities Cr(VI) formation in leather through its product Balsyn SAR. This paper deals with the direct and indirect source of Cr(VI) in leather and the role of Balsyn SAR to reduce the possibilities of Cr(VI) formation in leather as well as to reduce the chrome load in the environment through chrome fixation. Source of Cr(VI) formation in leather making
It is a fact that Cr(III) can be oxidized under certain conditions to a hazardous hexavalent form of Cr(VI). The formation of Cr(VI) is through direct sources and indirect sources such as auxiliaries, chemicals, process parameters and storage condition due to the presence of oxidizing agents in specialty chemicals used for leather making. Hence a need for scientific assessment is emerged to exclude this oxidation during normal condition of use. Tanning Agent, Dyes and Pigments
The presence of unreduced chromium in the Basic Chromium Sulphate, metal complex dyes and in organic pigments based on lead chromate are the direct source of Cr(VI) formation in leather. Neutralization At higher pH during wet blue leather neutralization with sodium bi carbonate, ammonia and cationic auxiliaries may promote the oxidation of Cr(III). It has been reported that leather samples treated with above chemicals shows the presence of Cr(VI)in extreme condition at 80⁰C for 24 hrs. There is no direct correlation between the final pH and Cr(VI) conversion was reported.
Heating/Sunlight drying/Photo ageing
Thermal ageing or exposure to UV light can induce the formation of large amounts of Cr(VI). It is also reported that the natural light or UV light produced by lamp of 366 nm can induce the formation of Cr(VI). Fatliquoring and Bleaching Agent
Presence of free radicals present in the single or multiple unsaturated fatty acid in fatliquor products based on natural oil is released in the presence of UV light can significantly cause the formation of Cr(VI) . During ageing, the double bonds in fatliquor base are prone to be attacked by oxygen. Auto oxidation leads to formation of radicals and hydro peroxides. Peroxides formed are likely to react with the trivalent chromium and converting into hexavalent during ageing. Bleaching agents are also source for free radicals. From all the above said sources it was understood that the formation of Cr(VI) is due to the presence of free/extractable/leachable/unfixed/ soluble Cr (III) in the leather.
Experiment was done to show the presence of Balsyn SAR in rechroming to aid in chrome fixation and thus helps in reduce the possibilities of Cr(VI) formation in leather.
Process adopted for experimental trials Rechroming was done for wet blue goat leather having thickness of 1.0/1.1 mm with the
BL SANDESH
processing and also to avoid/reduce the possibilities Cr(VI) formation in leather through its product Balsyn SAR. This paper deals with the direct and indirect source of Cr(VI) in leather and the role of Balsyn SAR to reduce the possibilities of Cr(VI) formation in leather as well as to reduce the chrome load in the environment through chrome fixation. Source of Cr(VI) formation in leather making
It is a fact that Cr(III) can be oxidized under certain conditions to a hazardous hexavalent form of Cr(VI). The formation of Cr(VI) is through direct sources and indirect sources such as auxiliaries, chemicals, process parameters and storage condition due to the presence of oxidizing agents in specialty chemicals used for leather making. Hence a need for scientific assessment is emerged to exclude this oxidation during normal condition of use. Tanning Agent, Dyes and Pigments
The presence of unreduced chromium in the Basic Chromium Sulphate, metal complex dyes and in organic pigments based on lead chromate are the direct source of Cr(VI) formation in leather. Neutralization At higher pH during wet blue leather neutralization with sodium bi carbonate, ammonia and cationic auxiliaries may promote the oxidation of Cr(III). It has been reported that leather samples treated with above chemicals shows the presence of Cr(VI)in extreme condition at 80⁰C for 24 hrs. There is no direct correlation between the final pH and Cr(VI) conversion was reported.
Heating/Sunlight drying/Photo ageing
Thermal ageing or exposure to UV light can induce the formation of large amounts of Cr(VI). It is also reported that the natural light or UV light produced by lamp of 366 nm can induce the formation of Cr(VI). Fatliquoring and Bleaching Agent
Presence of free radicals present in the single or multiple unsaturated fatty acid in fatliquor products based on natural oil is released in the presence of UV light can significantly cause the formation of Cr(VI) . During ageing, the double bonds in fatliquor base are prone to be attacked by oxygen. Auto oxidation leads to formation of radicals and hydro peroxides. Peroxides formed are likely to react with the trivalent chromium and converting into hexavalent during ageing. Bleaching agents are also source for free radicals. From all the above said sources it was understood that the formation of Cr(VI) is due to the presence of free/extractable/leachable/unfixed/ soluble Cr (III) in the leather.
Experiment was done to show the presence of Balsyn SAR in rechroming to aid in chrome fixation and thus helps in reduce the possibilities of Cr(VI) formation in leather.
Process adopted for experimental trials Rechroming was done for wet blue goat leather having thickness of 1.0/1.1 mm with the
BL SANDESH
processing and also to avoid/reduce the possibilities Cr(VI) formation in leather through its product Balsyn SAR. This paper deals with the direct and indirect source of Cr(VI) in leather and the role of Balsyn SAR to reduce the possibilities of Cr(VI) formation in leather as well as to reduce the chrome load in the environment through chrome fixation. Source of Cr(VI) formation in leather making
It is a fact that Cr(III) can be oxidized under certain conditions to a hazardous hexavalent form of Cr(VI). The formation of Cr(VI) is through direct sources and indirect sources such as auxiliaries, chemicals, process parameters and storage condition due to the presence of oxidizing agents in specialty chemicals used for leather making. Hence a need for scientific assessment is emerged to exclude this oxidation during normal condition of use. Tanning Agent, Dyes and Pigments
The presence of unreduced chromium in the Basic Chromium Sulphate, metal complex dyes and in organic pigments based on lead chromate are the direct source of Cr(VI) formation in leather. Neutralization At higher pH during wet blue leather neutralization with sodium bi carbonate, ammonia and cationic auxiliaries may promote the oxidation of Cr(III). It has been reported that leather samples treated with above chemicals shows the presence of Cr(VI)in extreme condition at 80⁰C for 24 hrs. There is no direct correlation between the final pH and Cr(VI) conversion was reported.
Heating/Sunlight drying/Photo ageing
Thermal ageing or exposure to UV light can induce the formation of large amounts of Cr(VI). It is also reported that the natural light or UV light produced by lamp of 366 nm can induce the formation of Cr(VI). Fatliquoring and Bleaching Agent
Presence of free radicals present in the single or multiple unsaturated fatty acid in fatliquor products based on natural oil is released in the presence of UV light can significantly cause the formation of Cr(VI) . During ageing, the double bonds in fatliquor base are prone to be attacked by oxygen. Auto oxidation leads to formation of radicals and hydro peroxides. Peroxides formed are likely to react with the trivalent chromium and converting into hexavalent during ageing. Bleaching agents are also source for free radicals. From all the above said sources it was understood that the formation of Cr(VI) is due to the presence of free/extractable/leachable/unfixed/ soluble Cr (III) in the leather.
Experiment was done to show the presence of Balsyn SAR in rechroming to aid in chrome fixation and thus helps in reduce the possibilities of Cr(VI) formation in leather.
Process adopted for experimental trials Rechroming was done for wet blue goat leather having thickness of 1.0/1.1 mm with the
BL SANDESH
reactions with possible different out comes. This paper deals with new chemistry in synthetic tanning agent.
Hyperbranched and dendrimers are extensively used in coatings and pharmaceuticals. Hyper branched polymers are under the class of Dendritic macromolecules. During the last 15 years, scientists, especially polymer chemists, have introduced a new philosophy of `dendritic macromolecules' and prepared globular and spherical molecules in addition to the more conventional linear ones. .Dendritic 14-16 macromolecules are monodisperse and classified into dendrons, dendrimers. Hyperbranched polymers 17-22, which are polydisperse are composed of successive branching units Illustration of more branching in Hyper branched polymers
Synthesis Methodology
We have followed a recently developed a facile and generic synthetic methodology (the “Strathclyde methodology”) for the high yielding synthesis of branched vinyl polymers using conventional free radical polymerization. The methodology involves the simple free radical copolymerization of a vinyl monomer with a difunctional (or multifunctional) comonomer, wherein cross-linking and network formation is inhibited by use of appropriate levels of a stoichiometric free radical chain transfer agent, such as a thiol, or indeed a catalytic chain transfer agent. This process is patented23.
Scheme-1
In general, leather trial results showed that these branched polymers behave as a soft acrylic syntan with less surface hardening characteristics and improved bleaching.
These branched polymers with multiple functionalities also served as a better dispersing and fixing agent for basic chromium sulphate (BCS); importantly, after chrome tanning the residual chromium (measured as % Cr2O3) left behind in exhaustion was considerably reduced23.
The dendrimers can be used like in drug delivery for sustained release of sodium sulphides in unhairing. This could be bring down the load in effluents.
Conclusion: This article is to highlight the various possible
chemistries to be explored. The suggestive pathways needs further studies and would require modifications. The success pathways in other areas are to be ‘technologically translated‘. Much more organic reactions can be adopted and the culture of interdisciplinary research with an amalgamation of scientists in different fields of science and technologists could contribute and unravel the interesting aspects in this field of leather. The next issue will address about Fatliquors, beam house and finishing.
(Ref: Graves , US Pat. 2205882 , 1940,Tomalia DA, Naylor AM, Goddard III WA. Angew Chem, Int Ed Engl 1990;29:138-175. Newkome GR, Moore®eld CN, Voegtle . Dendritic molecules : Concepts , Synthesis , perspectives, NewYork : VCH, 1996FreÂchet JMJ. Science 1994;263:1710-1715. Voit BI. Acta Polym 1995; 46:87-99.Newkome GR, Moore®eld CN, VoÈ gtle F. Dendritic molecules: concepts, syntheses, perspectives. New York: VCH, 1996. FreÂchet JMJ, Hawker CJ, Gitsov I, Leon JW. J Macromol Sci, Pure Appl Chem 1996;A33:1399-1425. Malmstro È m E, Hult A. J Macromol Sci, Rev, Macromol Chem Phys 1997; C37:555-579. Baudry R., Sherrington D.C.., Macromolecules 2006; 39(4) : 1455-1460
All rights reserved by Balmer lawrie & Co.Ltd. All informationsor knowledge sharing only and not for commercial
Balmer Lawrie entered into Leather Chemical business in 1983 by taking up manufacture of synthetic fatliquors in Chennai. Over the years, Balmer Lawrie has added several new products and formulations, developed in-house in its modern R & D facilities at Chennai. Balmer Lawrie is certified with ISO 9001:2015, ISO 14001:2015, OHSAS 18001:2007. Balmer Lawrie is doing significant volume of export to China, Bangladesh, Korea, Iran, Ethiopia, Thailand, Indonesia, Vietnam, Turkey & Egypt.
BL SANDESH
reactions with possible different out comes. This paper deals with new chemistry in synthetic tanning agent.
Hyperbranched and dendrimers are extensively used in coatings and pharmaceuticals. Hyper branched polymers are under the class of Dendritic macromolecules. During the last 15 years, scientists, especially polymer chemists, have introduced a new philosophy of `dendritic macromolecules' and prepared globular and spherical molecules in addition to the more conventional linear ones. .Dendritic 14-16 macromolecules are monodisperse and classified into dendrons, dendrimers. Hyperbranched polymers 17-22, which are polydisperse are composed of successive branching units Illustration of more branching in Hyper branched polymers
Synthesis Methodology
We have followed a recently developed a facile and generic synthetic methodology (the “Strathclyde methodology”) for the high yielding synthesis of branched vinyl polymers using conventional free radical polymerization. The methodology involves the simple free radical copolymerization of a vinyl monomer with a difunctional (or multifunctional) comonomer, wherein cross-linking and network formation is inhibited by use of appropriate levels of a stoichiometric free radical chain transfer agent, such as a thiol, or indeed a catalytic chain transfer agent. This process is patented23.
Scheme-1
In general, leather trial results showed that these branched polymers behave as a soft acrylic syntan with less surface hardening characteristics and improved bleaching.
These branched polymers with multiple functionalities also served as a better dispersing and fixing agent for basic chromium sulphate (BCS); importantly, after chrome tanning the residual chromium (measured as % Cr2O3) left behind in exhaustion was considerably reduced23.
The dendrimers can be used like in drug delivery for sustained release of sodium sulphides in unhairing. This could be bring down the load in effluents.
Conclusion: This article is to highlight the various possible
chemistries to be explored. The suggestive pathways needs further studies and would require modifications. The success pathways in other areas are to be ‘technologically translated‘. Much more organic reactions can be adopted and the culture of interdisciplinary research with an amalgamation of scientists in different fields of science and technologists could contribute and unravel the interesting aspects in this field of leather. The next issue will address about Fatliquors, beam house and finishing.
(Ref: Graves , US Pat. 2205882 , 1940,Tomalia DA, Naylor AM, Goddard III WA. Angew Chem, Int Ed Engl 1990;29:138-175. Newkome GR, Moore®eld CN, Voegtle . Dendritic molecules : Concepts , Synthesis , perspectives, NewYork : VCH, 1996FreÂchet JMJ. Science 1994;263:1710-1715. Voit BI. Acta Polym 1995; 46:87-99.Newkome GR, Moore®eld CN, VoÈ gtle F. Dendritic molecules: concepts, syntheses, perspectives. New York: VCH, 1996. FreÂchet JMJ, Hawker CJ, Gitsov I, Leon JW. J Macromol Sci, Pure Appl Chem 1996;A33:1399-1425. Malmstro È m E, Hult A. J Macromol Sci, Rev, Macromol Chem Phys 1997; C37:555-579. Baudry R., Sherrington D.C.., Macromolecules 2006; 39(4) : 1455-1460
All rights reserved by Balmer lawrie & Co.Ltd. All informationsor knowledge sharing only and not for commercial
Balmer Lawrie entered into Leather Chemical business in 1983 by taking up manufacture of synthetic fatliquors in Chennai. Over the years, Balmer Lawrie has added several new products and formulations, developed in-house in its modern R & D facilities at Chennai. Balmer Lawrie is certified with ISO 9001:2015, ISO 14001:2015, OHSAS 18001:2007. Balmer Lawrie is doing significant volume of export to China, Bangladesh, Korea, Iran, Ethiopia, Thailand, Indonesia, Vietnam, Turkey & Egypt.
---------------------------------------------------------------------------------------------- New Products from BL Balsyn ® MP40(SPL)
Balmer Lawrie SBU: Leather Chemicals has been honored with National Award for Manufacturing Competitiveness (NAMC 2017) for its Chennai leather chemicals manufacturing facilities by the International Research Institute for Manufacturing (IRIM). COO(Leather Chemicals) and Associate Vice President(works) receiving the unique award for the implementation of non-conventional and advanced approach in manufacturing. ------------------------------------------------------------------------------------------------------------------------------ AN APPROACH TO REDUCE THE POSSIBILITIES OF CHROMIUM (VI) FORMATION IN LEATHER WITH BALSYN SAR Introduction Basic Chromium Sulphate is the most popular tanning agent in global leather production and 90 % of hides and skins are being tanned with this tanning material. This tanning involves
environmental risks from the possible oxidation of Cr(III) to Cr(VI) and this hexavalent chromium is known to be toxic to animals and humans. More
over the residual chrome in chrome tanning and rechroming waste water is the main origin of chrome in effluent. A considerable amount of chrome is also released from leather in almost all the post tanning processes such as washing, neutralization, retanning with various retanning agents, dyeing, fatliquoring and acid fixation. As a result more than 60 % of chrome added is discharged into waste water. This fact demonstrates that the chrome that effectively reacts with collagen and produce tanning action have not been released during these processes. Hence different products and process emerged to control chrome load in the effluent and also to avoid the formation of chromium (VI) from released Cr(III). Here Balmer Lawrie followed a strategy to improve chrome fixation or to reduce the presence of free/unfixed chrome in leather in order to reduce chrome discharge in leather
BL had developed an Acrylic Polymer emulsion ‘Balsyn MP40 (SPL)’ for the usage in chrome tanning, rechroming and retanning. This Syntan can be used for all kind of chrome and semi chrome tanned leathers from 3-6 % to improve plumbness, fine and smooth grain, inner softness, tightness, and also to improve chrome exhaustion. This product is highly stable in pickle pH, thus improves chrome dispersion and
The above results shows the presence of poly carboxyl group in Balsyn SAR forms a complex with free or unbound chrome and aids in chrome fixation, thus helps in the reduction of free chrome (Table.2)by 82 % in rechroming. However the percentage of free chrome will vary with wet blue leather based on process method and the material used. Different experiments are in progress to find out the application of Balsyn SAR in chrome tanning , neutralization, washing and in post tanning in the reduction of chrome load and also in chrome fixation to reduce chrome(VI) formation in leather.(Ref:Application of advanced polymeric compounds for development of leather production, material science engineering 111, 2016,Release of chrome in chrome tanning and post tanning processes JSLTC july 2012, Possibilities of hexavalent chromium generation and plausible preventive and corrective measures-CLRI, Prevention of carcinogenic Cr(VI) formation in leather, Indian journal of chemical technology Jan 2014, Chromium(VI)-www.leather dictionary.com, chromium and leather research IULTCS Aug 2013, Determination of extractable chromium from leather-research gate jan 2009)
In leather processing , the nature of leather and different type of leather chemicals attributes to performance of leather. Although, lot of advancements have happened in mechanical operations, radical changes is yet to put in practice in terms of various chemistries used for manufacturing leather chemicals. New chemistries have gained momentum in other fields and this paper will highlight the possible opportunities to utilize many organic reactions in leather chemicals. The approaches mentioned are not pertaining to just change of substrates rather new reactions with possible different out comes. This paper deals with new chemistry in synthetic tanning agent. Hyperbranched and dendrimers are extensively used in coatings and pharmaceuticals. Hyper branched polymers are under the class of Dendritic macromolecules. During the last 15 years, scientists, especially polymer chemists, have introduced a new philosophy of `dendritic macromolecules' and prepared globular and spherical molecules in addition to the more conventional linear ones. Dendric macromolecules are monodisperse and classified into dendrons, dendrimers. Hyperbranched polymers which are polydisperse are composed of successive branching units.
Process adopted for experimental trialsConclusion:
Exploring new chemistry in Synthetic Tanning Agent
Bleaching agents are also source for free radicals. From all the above said sources it was understood that the formation of Cr(VI) is due to the presence of free/extractable/leachable/unfixed/ soluble Cr (III) in the leather. Experiment was done to show the presence of Balsyn SAR in rechroming to aid in chrome fixation and thus helps in reduce the possibilities of Cr(VI) formation in leather.
Rechroming was done for wet blue goat leather having thickness of 1.0/1.1 mm with the following recipe
Control and experimental leathers were tested for extractable chromium content by ISO 17071-I and can be seen from the below table that the free chrome or incomplete chrome absorption in leather was reduced from 192.2 ppm to 34.7 ppm with the aid of Balsyn SAR.
BL SANDESH
---------------------------------------------------------------------------------------------- New Products from BL Balsyn ® MP40(SPL)
Balmer Lawrie SBU: Leather Chemicals has been honored with National Award for Manufacturing Competitiveness (NAMC 2017) for its Chennai leather chemicals manufacturing facilities by the International Research Institute for Manufacturing (IRIM). COO(Leather Chemicals) and Associate Vice President(works) receiving the unique award for the implementation of non-conventional and advanced approach in manufacturing. ------------------------------------------------------------------------------------------------------------------------------ AN APPROACH TO REDUCE THE POSSIBILITIES OF CHROMIUM (VI) FORMATION IN LEATHER WITH BALSYN SAR Introduction Basic Chromium Sulphate is the most popular tanning agent in global leather production and 90 % of hides and skins are being tanned with this tanning material. This tanning involves
environmental risks from the possible oxidation of Cr(III) to Cr(VI) and this hexavalent chromium is known to be toxic to animals and humans. More
over the residual chrome in chrome tanning and rechroming waste water is the main origin of chrome in effluent. A considerable amount of chrome is also released from leather in almost all the post tanning processes such as washing, neutralization, retanning with various retanning agents, dyeing, fatliquoring and acid fixation. As a result more than 60 % of chrome added is discharged into waste water. This fact demonstrates that the chrome that effectively reacts with collagen and produce tanning action have not been released during these processes. Hence different products and process emerged to control chrome load in the effluent and also to avoid the formation of chromium (VI) from released Cr(III). Here Balmer Lawrie followed a strategy to improve chrome fixation or to reduce the presence of free/unfixed chrome in leather in order to reduce chrome discharge in leather
BL had developed an Acrylic Polymer emulsion ‘Balsyn MP40 (SPL)’ for the usage in chrome tanning, rechroming and retanning. This Syntan can be used for all kind of chrome and semi chrome tanned leathers from 3-6 % to improve plumbness, fine and smooth grain, inner softness, tightness, and also to improve chrome exhaustion. This product is highly stable in pickle pH, thus improves chrome dispersion and
BL SANDESH
following recipe Table :1
Process % Chemicals
Duration Remarks
Acid Wash
Water 100
Formic acid 0.5 30’ pH 3.0 Drain
Rechroming
Water 100
Control: Balsyn CR ? & Without SAR
10 0
45’
Experiment: Balsyn CR? Balsyn SAR
10 2
45’
Sodium formate
1
Sodium bi carbonate
1 2 X10’+ 40’
Check pH4.0 D/W/D
Experiment : With 2 % Balsyn SAR Control : Without Balsyn SAR Control and experimental leathers were tested for extractable chromium content by ISO 17071-I and can be seen from the below table the free chrome or incomplete chrome absorption in leather was reduced from 192.2 ppm to 34.7 ppm with the aid of Balsyn SAR. Table :2 Sample Extractable Cr Content
Control (Without Balsyn SAR)
192.2 ppm
Experiment (With Balsyn SAR 2 %)
34.7 ppm
Influence of Balsyn SAR in Chrome fixation
Conclusion: The above results shows the presence of poly carboxyl group in Balsyn SAR forms a complex with free or unbound chrome and aids in chrome fixation, thus helps in the reduction of free chrome (Table.2)by 82 % in rechroming. However the percentage of free chrome will vary with wet blue leather based on process method and the material used. Different experiments are in progress to find out the application of Balsyn SAR in chrome tanning , neutralization, washing and in post tanning in the reduction of chrome load and also in chrome fixation to reduce chrome(VI) formation in leather. (Ref:Application of advanced polymeric compounds for development of leather production, material science engineering 111, 2016,Release of chrome in chrome tanning and post tanning processes JSLTC july 2012, Possibilities of hexavalent chromium generation and plausible preventive and corrective measures-CLRI, Prevention of carcinogenic Cr(VI) formation in leather, Indian journal of chemical technology Jan 2014, Chromium(VI)-www.leather dictionary.com, chromium and leather research IULTCS Aug 2013, Determination of extractable chromium from leather-research gate jan 2009) Exploring new chemistry in Synthetic Tanning Agent In leather processing , the nature of leather and different type of leather chemicals attributes to performance of leather. Although, lot of advancements have happened in mechanical operations, radical changes is yet to put in practice in terms of various chemistries used for manufacturing leather chemicals. New chemistries have gained momentum in other fields and this paper will highlight the possible opportunities to utilize many organic reactions in leather chemicals. The approaches mentioned are not pertaining to just change of substrates rather new
192.2
34.7
SAR 0 % SAR 2 %
Chart Title
Extractable Cr Content (ppm)
Column1
Column2
BL SANDESH
following recipe Table :1
Process % Chemicals
Duration Remarks
Acid Wash
Water 100
Formic acid 0.5 30’ pH 3.0 Drain
Rechroming
Water 100
Control: Balsyn CR ? & Without SAR
10 0
45’
Experiment: Balsyn CR? Balsyn SAR
10 2
45’
Sodium formate
1
Sodium bi carbonate
1 2 X10’+ 40’
Check pH4.0 D/W/D
Experiment : With 2 % Balsyn SAR Control : Without Balsyn SAR Control and experimental leathers were tested for extractable chromium content by ISO 17071-I and can be seen from the below table the free chrome or incomplete chrome absorption in leather was reduced from 192.2 ppm to 34.7 ppm with the aid of Balsyn SAR. Table :2 Sample Extractable Cr Content
Control (Without Balsyn SAR)
192.2 ppm
Experiment (With Balsyn SAR 2 %)
34.7 ppm
Influence of Balsyn SAR in Chrome fixation
Conclusion: The above results shows the presence of poly carboxyl group in Balsyn SAR forms a complex with free or unbound chrome and aids in chrome fixation, thus helps in the reduction of free chrome (Table.2)by 82 % in rechroming. However the percentage of free chrome will vary with wet blue leather based on process method and the material used. Different experiments are in progress to find out the application of Balsyn SAR in chrome tanning , neutralization, washing and in post tanning in the reduction of chrome load and also in chrome fixation to reduce chrome(VI) formation in leather. (Ref:Application of advanced polymeric compounds for development of leather production, material science engineering 111, 2016,Release of chrome in chrome tanning and post tanning processes JSLTC july 2012, Possibilities of hexavalent chromium generation and plausible preventive and corrective measures-CLRI, Prevention of carcinogenic Cr(VI) formation in leather, Indian journal of chemical technology Jan 2014, Chromium(VI)-www.leather dictionary.com, chromium and leather research IULTCS Aug 2013, Determination of extractable chromium from leather-research gate jan 2009) Exploring new chemistry in Synthetic Tanning Agent In leather processing , the nature of leather and different type of leather chemicals attributes to performance of leather. Although, lot of advancements have happened in mechanical operations, radical changes is yet to put in practice in terms of various chemistries used for manufacturing leather chemicals. New chemistries have gained momentum in other fields and this paper will highlight the possible opportunities to utilize many organic reactions in leather chemicals. The approaches mentioned are not pertaining to just change of substrates rather new
192.2
34.7
SAR 0 % SAR 2 %
Chart Title
Extractable Cr Content (ppm)
Column1
Column2
BL SANDESH
reactions with possible different out comes. This paper deals with new chemistry in synthetic tanning agent.
Hyperbranched and dendrimers are extensively used in coatings and pharmaceuticals. Hyper branched polymers are under the class of Dendritic macromolecules. During the last 15 years, scientists, especially polymer chemists, have introduced a new philosophy of `dendritic macromolecules' and prepared globular and spherical molecules in addition to the more conventional linear ones. .Dendritic 14-16 macromolecules are monodisperse and classified into dendrons, dendrimers. Hyperbranched polymers 17-22, which are polydisperse are composed of successive branching units Illustration of more branching in Hyper branched polymers
Synthesis Methodology
We have followed a recently developed a facile and generic synthetic methodology (the “Strathclyde methodology”) for the high yielding synthesis of branched vinyl polymers using conventional free radical polymerization. The methodology involves the simple free radical copolymerization of a vinyl monomer with a difunctional (or multifunctional) comonomer, wherein cross-linking and network formation is inhibited by use of appropriate levels of a stoichiometric free radical chain transfer agent, such as a thiol, or indeed a catalytic chain transfer agent. This process is patented23.
Scheme-1
In general, leather trial results showed that these branched polymers behave as a soft acrylic syntan with less surface hardening characteristics and improved bleaching.
These branched polymers with multiple functionalities also served as a better dispersing and fixing agent for basic chromium sulphate (BCS); importantly, after chrome tanning the residual chromium (measured as % Cr2O3) left behind in exhaustion was considerably reduced23.
The dendrimers can be used like in drug delivery for sustained release of sodium sulphides in unhairing. This could be bring down the load in effluents.
Conclusion: This article is to highlight the various possible
chemistries to be explored. The suggestive pathways needs further studies and would require modifications. The success pathways in other areas are to be ‘technologically translated‘. Much more organic reactions can be adopted and the culture of interdisciplinary research with an amalgamation of scientists in different fields of science and technologists could contribute and unravel the interesting aspects in this field of leather. The next issue will address about Fatliquors, beam house and finishing.
(Ref: Graves , US Pat. 2205882 , 1940,Tomalia DA, Naylor AM, Goddard III WA. Angew Chem, Int Ed Engl 1990;29:138-175. Newkome GR, Moore®eld CN, Voegtle . Dendritic molecules : Concepts , Synthesis , perspectives, NewYork : VCH, 1996FreÂchet JMJ. Science 1994;263:1710-1715. Voit BI. Acta Polym 1995; 46:87-99.Newkome GR, Moore®eld CN, VoÈ gtle F. Dendritic molecules: concepts, syntheses, perspectives. New York: VCH, 1996. FreÂchet JMJ, Hawker CJ, Gitsov I, Leon JW. J Macromol Sci, Pure Appl Chem 1996;A33:1399-1425. Malmstro È m E, Hult A. J Macromol Sci, Rev, Macromol Chem Phys 1997; C37:555-579. Baudry R., Sherrington D.C.., Macromolecules 2006; 39(4) : 1455-1460
All rights reserved by Balmer lawrie & Co.Ltd. All informationsor knowledge sharing only and not for commercial
Balmer Lawrie entered into Leather Chemical business in 1983 by taking up manufacture of synthetic fatliquors in Chennai. Over the years, Balmer Lawrie has added several new products and formulations, developed in-house in its modern R & D facilities at Chennai. Balmer Lawrie is certified with ISO 9001:2015, ISO 14001:2015, OHSAS 18001:2007. Balmer Lawrie is doing significant volume of export to China, Bangladesh, Korea, Iran, Ethiopia, Thailand, Indonesia, Vietnam, Turkey & Egypt.
In general, leather trial results showed that these branched polymers behave as a soft acrylic syntan with less surface hardening characteristics and improved bleaching.
These branched polymers with multiple functionalities also served as a better dispersing and fixing agent for basic chromium sulphate (BCS); importantly, after chrome tanning the residual chromium (measured as % Cr2O3) left behind in exhaustion was considerably reduced. The dendrimers can be used like in drug delivery for sustained release of sodium sulphides in unhairing. This could be bring down the load in effluents.
We have followed a recently developed a facile and generic synthetic methodology (the “Strathclyde methodology”) for the high yielding synthesis of branched vinyl polymers using conventional free radical polymerization.
The methodology involves the simple free radical copolymerization of a vinyl monomer with a difunctional (or multifunctional) comonomer, wherein cross-linking and network formation is inhibited by use of appropriate levels of a stoichiometric free radical chain transfer agent, such as a thiol, or indeed a catalytic chain transfer agent. This process is patented.
This article is to highlight the various possible chemistries to be explored. The suggestive pathways needs further studies and would require modifications. The success pathways in other areas are to be “technologically translated”. Much more organic reactions can be adopted and the culture of interdisciplinary research with an amalgamation of scientists in different fields of science and technologists could contribute and unravel the interesting aspects in this field of leather. The next issue will address about Fatliquors, beam house and finishing. (Ref: Graves , US Pat. 2205882, 1940,Tomalia DA, Naylor AM, Goddard III WA. Angew Chem, Int Ed Engl 1990;29:138-175. Newkome GR, Moore®eld CN, Voegtle . Dendritic molecules : Concepts , Synthesis , perspectives, NewYork : VCH, 1996FreÂchet JMJ. Science 1994;263:1710-1715. Voit BI. Acta Polym 1995; 46:87-99.Newkome GR, Moore®eld CN, VoÈ gtle F. Dendritic molecules: concepts, syntheses, perspectives. New York: VCH, 1996. FreÂchet JMJ, Hawker CJ, Gitsov I, Leon JW. J Macromol Sci, Pure Appl Chem 1996;A33:1399-1425. Malmstro È m E, Hult A. J Macromol Sci, Rev, Macromol Chem Phys 1997; C37:555-579. Baudry R., Sherrington D.C.., Macromolecules 2006; 39(4) : 1455-1460 Vijayabaskar, V.; Subramanian, S.R.K.; Basu, J.K.; Nagarajan ; Animesh Chattopadhyay ; , Ravikumar S.; Ramakrishnan S. Indian Patent No. 286195, 2010.)
All rights reserved by Balmer lawrie & Co.Ltd. All informations are for knowledge sharing only and not for commercial purpose
Balmer Lawrie entered into Leather Chemical business in 1983 by taking up manufacture of synthetic fatliquors in Chennai. Over the years, Balmer Lawrie has added several new products and formulations, developed in-house in its modern R & D facilities at Chennai. Balmer Lawrie is certified with ISO 9001:2015, ISO 14001:2015, OHSAS 18001:2007. Balmer Lawrie is doing significant volume of export to China, Bangladesh, Korea, Iran, Ethiopia, Thailand, Indonesia, Vietnam, Turkey & Egypt.
Illustration of more branching in Hyper branched polymers
Conclusion:
Synthesis Methodology
Scheme - 1
BL SANDESH
---------------------------------------------------------------------------------------------- New Products from BL Balsyn ® MP40(SPL)
Balmer Lawrie SBU: Leather Chemicals has been honored with National Award for Manufacturing Competitiveness (NAMC 2017) for its Chennai leather chemicals manufacturing facilities by the International Research Institute for Manufacturing (IRIM). COO(Leather Chemicals) and Associate Vice President(works) receiving the unique award for the implementation of non-conventional and advanced approach in manufacturing. ------------------------------------------------------------------------------------------------------------------------------ AN APPROACH TO REDUCE THE POSSIBILITIES OF CHROMIUM (VI) FORMATION IN LEATHER WITH BALSYN SAR Introduction Basic Chromium Sulphate is the most popular tanning agent in global leather production and 90 % of hides and skins are being tanned with this tanning material. This tanning involves
environmental risks from the possible oxidation of Cr(III) to Cr(VI) and this hexavalent chromium is known to be toxic to animals and humans. More
over the residual chrome in chrome tanning and rechroming waste water is the main origin of chrome in effluent. A considerable amount of chrome is also released from leather in almost all the post tanning processes such as washing, neutralization, retanning with various retanning agents, dyeing, fatliquoring and acid fixation. As a result more than 60 % of chrome added is discharged into waste water. This fact demonstrates that the chrome that effectively reacts with collagen and produce tanning action have not been released during these processes. Hence different products and process emerged to control chrome load in the effluent and also to avoid the formation of chromium (VI) from released Cr(III). Here Balmer Lawrie followed a strategy to improve chrome fixation or to reduce the presence of free/unfixed chrome in leather in order to reduce chrome discharge in leather
BL had developed an Acrylic Polymer emulsion ‘Balsyn MP40 (SPL)’ for the usage in chrome tanning, rechroming and retanning. This Syntan can be used for all kind of chrome and semi chrome tanned leathers from 3-6 % to improve plumbness, fine and smooth grain, inner softness, tightness, and also to improve chrome exhaustion. This product is highly stable in pickle pH, thus improves chrome dispersion and
BL SANDESH
processing and also to avoid/reduce the possibilities Cr(VI) formation in leather through its product Balsyn SAR. This paper deals with the direct and indirect source of Cr(VI) in leather and the role of Balsyn SAR to reduce the possibilities of Cr(VI) formation in leather as well as to reduce the chrome load in the environment through chrome fixation. Source of Cr(VI) formation in leather making
It is a fact that Cr(III) can be oxidized under certain conditions to a hazardous hexavalent form of Cr(VI). The formation of Cr(VI) is through direct sources and indirect sources such as auxiliaries, chemicals, process parameters and storage condition due to the presence of oxidizing agents in specialty chemicals used for leather making. Hence a need for scientific assessment is emerged to exclude this oxidation during normal condition of use. Tanning Agent, Dyes and Pigments
The presence of unreduced chromium in the Basic Chromium Sulphate, metal complex dyes and in organic pigments based on lead chromate are the direct source of Cr(VI) formation in leather. Neutralization At higher pH during wet blue leather neutralization with sodium bi carbonate, ammonia and cationic auxiliaries may promote the oxidation of Cr(III). It has been reported that leather samples treated with above chemicals shows the presence of Cr(VI)in extreme condition at 80⁰C for 24 hrs. There is no direct correlation between the final pH and Cr(VI) conversion was reported.
Heating/Sunlight drying/Photo ageing
Thermal ageing or exposure to UV light can induce the formation of large amounts of Cr(VI). It is also reported that the natural light or UV light produced by lamp of 366 nm can induce the formation of Cr(VI). Fatliquoring and Bleaching Agent
Presence of free radicals present in the single or multiple unsaturated fatty acid in fatliquor products based on natural oil is released in the presence of UV light can significantly cause the formation of Cr(VI) . During ageing, the double bonds in fatliquor base are prone to be attacked by oxygen. Auto oxidation leads to formation of radicals and hydro peroxides. Peroxides formed are likely to react with the trivalent chromium and converting into hexavalent during ageing. Bleaching agents are also source for free radicals. From all the above said sources it was understood that the formation of Cr(VI) is due to the presence of free/extractable/leachable/unfixed/ soluble Cr (III) in the leather.
Experiment was done to show the presence of Balsyn SAR in rechroming to aid in chrome fixation and thus helps in reduce the possibilities of Cr(VI) formation in leather.
Process adopted for experimental trials Rechroming was done for wet blue goat leather having thickness of 1.0/1.1 mm with the
BL SANDESH
processing and also to avoid/reduce the possibilities Cr(VI) formation in leather through its product Balsyn SAR. This paper deals with the direct and indirect source of Cr(VI) in leather and the role of Balsyn SAR to reduce the possibilities of Cr(VI) formation in leather as well as to reduce the chrome load in the environment through chrome fixation. Source of Cr(VI) formation in leather making
It is a fact that Cr(III) can be oxidized under certain conditions to a hazardous hexavalent form of Cr(VI). The formation of Cr(VI) is through direct sources and indirect sources such as auxiliaries, chemicals, process parameters and storage condition due to the presence of oxidizing agents in specialty chemicals used for leather making. Hence a need for scientific assessment is emerged to exclude this oxidation during normal condition of use. Tanning Agent, Dyes and Pigments
The presence of unreduced chromium in the Basic Chromium Sulphate, metal complex dyes and in organic pigments based on lead chromate are the direct source of Cr(VI) formation in leather. Neutralization At higher pH during wet blue leather neutralization with sodium bi carbonate, ammonia and cationic auxiliaries may promote the oxidation of Cr(III). It has been reported that leather samples treated with above chemicals shows the presence of Cr(VI)in extreme condition at 80⁰C for 24 hrs. There is no direct correlation between the final pH and Cr(VI) conversion was reported.
Heating/Sunlight drying/Photo ageing
Thermal ageing or exposure to UV light can induce the formation of large amounts of Cr(VI). It is also reported that the natural light or UV light produced by lamp of 366 nm can induce the formation of Cr(VI). Fatliquoring and Bleaching Agent
Presence of free radicals present in the single or multiple unsaturated fatty acid in fatliquor products based on natural oil is released in the presence of UV light can significantly cause the formation of Cr(VI) . During ageing, the double bonds in fatliquor base are prone to be attacked by oxygen. Auto oxidation leads to formation of radicals and hydro peroxides. Peroxides formed are likely to react with the trivalent chromium and converting into hexavalent during ageing. Bleaching agents are also source for free radicals. From all the above said sources it was understood that the formation of Cr(VI) is due to the presence of free/extractable/leachable/unfixed/ soluble Cr (III) in the leather.
Experiment was done to show the presence of Balsyn SAR in rechroming to aid in chrome fixation and thus helps in reduce the possibilities of Cr(VI) formation in leather.
Process adopted for experimental trials Rechroming was done for wet blue goat leather having thickness of 1.0/1.1 mm with the
BL SANDESH
processing and also to avoid/reduce the possibilities Cr(VI) formation in leather through its product Balsyn SAR. This paper deals with the direct and indirect source of Cr(VI) in leather and the role of Balsyn SAR to reduce the possibilities of Cr(VI) formation in leather as well as to reduce the chrome load in the environment through chrome fixation. Source of Cr(VI) formation in leather making
It is a fact that Cr(III) can be oxidized under certain conditions to a hazardous hexavalent form of Cr(VI). The formation of Cr(VI) is through direct sources and indirect sources such as auxiliaries, chemicals, process parameters and storage condition due to the presence of oxidizing agents in specialty chemicals used for leather making. Hence a need for scientific assessment is emerged to exclude this oxidation during normal condition of use. Tanning Agent, Dyes and Pigments
The presence of unreduced chromium in the Basic Chromium Sulphate, metal complex dyes and in organic pigments based on lead chromate are the direct source of Cr(VI) formation in leather. Neutralization At higher pH during wet blue leather neutralization with sodium bi carbonate, ammonia and cationic auxiliaries may promote the oxidation of Cr(III). It has been reported that leather samples treated with above chemicals shows the presence of Cr(VI)in extreme condition at 80⁰C for 24 hrs. There is no direct correlation between the final pH and Cr(VI) conversion was reported.
Heating/Sunlight drying/Photo ageing
Thermal ageing or exposure to UV light can induce the formation of large amounts of Cr(VI). It is also reported that the natural light or UV light produced by lamp of 366 nm can induce the formation of Cr(VI). Fatliquoring and Bleaching Agent
Presence of free radicals present in the single or multiple unsaturated fatty acid in fatliquor products based on natural oil is released in the presence of UV light can significantly cause the formation of Cr(VI) . During ageing, the double bonds in fatliquor base are prone to be attacked by oxygen. Auto oxidation leads to formation of radicals and hydro peroxides. Peroxides formed are likely to react with the trivalent chromium and converting into hexavalent during ageing. Bleaching agents are also source for free radicals. From all the above said sources it was understood that the formation of Cr(VI) is due to the presence of free/extractable/leachable/unfixed/ soluble Cr (III) in the leather.
Experiment was done to show the presence of Balsyn SAR in rechroming to aid in chrome fixation and thus helps in reduce the possibilities of Cr(VI) formation in leather.
Process adopted for experimental trials Rechroming was done for wet blue goat leather having thickness of 1.0/1.1 mm with the
BL SANDESH
reactions with possible different out comes. This paper deals with new chemistry in synthetic tanning agent.
Hyperbranched and dendrimers are extensively used in coatings and pharmaceuticals. Hyper branched polymers are under the class of Dendritic macromolecules. During the last 15 years, scientists, especially polymer chemists, have introduced a new philosophy of `dendritic macromolecules' and prepared globular and spherical molecules in addition to the more conventional linear ones. .Dendritic 14-16 macromolecules are monodisperse and classified into dendrons, dendrimers. Hyperbranched polymers 17-22, which are polydisperse are composed of successive branching units Illustration of more branching in Hyper branched polymers
Synthesis Methodology
We have followed a recently developed a facile and generic synthetic methodology (the “Strathclyde methodology”) for the high yielding synthesis of branched vinyl polymers using conventional free radical polymerization. The methodology involves the simple free radical copolymerization of a vinyl monomer with a difunctional (or multifunctional) comonomer, wherein cross-linking and network formation is inhibited by use of appropriate levels of a stoichiometric free radical chain transfer agent, such as a thiol, or indeed a catalytic chain transfer agent. This process is patented23.
Scheme-1
In general, leather trial results showed that these branched polymers behave as a soft acrylic syntan with less surface hardening characteristics and improved bleaching.
These branched polymers with multiple functionalities also served as a better dispersing and fixing agent for basic chromium sulphate (BCS); importantly, after chrome tanning the residual chromium (measured as % Cr2O3) left behind in exhaustion was considerably reduced23.
The dendrimers can be used like in drug delivery for sustained release of sodium sulphides in unhairing. This could be bring down the load in effluents.
Conclusion: This article is to highlight the various possible
chemistries to be explored. The suggestive pathways needs further studies and would require modifications. The success pathways in other areas are to be ‘technologically translated‘. Much more organic reactions can be adopted and the culture of interdisciplinary research with an amalgamation of scientists in different fields of science and technologists could contribute and unravel the interesting aspects in this field of leather. The next issue will address about Fatliquors, beam house and finishing.
(Ref: Graves , US Pat. 2205882 , 1940,Tomalia DA, Naylor AM, Goddard III WA. Angew Chem, Int Ed Engl 1990;29:138-175. Newkome GR, Moore®eld CN, Voegtle . Dendritic molecules : Concepts , Synthesis , perspectives, NewYork : VCH, 1996FreÂchet JMJ. Science 1994;263:1710-1715. Voit BI. Acta Polym 1995; 46:87-99.Newkome GR, Moore®eld CN, VoÈ gtle F. Dendritic molecules: concepts, syntheses, perspectives. New York: VCH, 1996. FreÂchet JMJ, Hawker CJ, Gitsov I, Leon JW. J Macromol Sci, Pure Appl Chem 1996;A33:1399-1425. Malmstro È m E, Hult A. J Macromol Sci, Rev, Macromol Chem Phys 1997; C37:555-579. Baudry R., Sherrington D.C.., Macromolecules 2006; 39(4) : 1455-1460
All rights reserved by Balmer lawrie & Co.Ltd. All informationsor knowledge sharing only and not for commercial
Balmer Lawrie entered into Leather Chemical business in 1983 by taking up manufacture of synthetic fatliquors in Chennai. Over the years, Balmer Lawrie has added several new products and formulations, developed in-house in its modern R & D facilities at Chennai. Balmer Lawrie is certified with ISO 9001:2015, ISO 14001:2015, OHSAS 18001:2007. Balmer Lawrie is doing significant volume of export to China, Bangladesh, Korea, Iran, Ethiopia, Thailand, Indonesia, Vietnam, Turkey & Egypt.
BL SANDESH
reactions with possible different out comes. This paper deals with new chemistry in synthetic tanning agent.
Hyperbranched and dendrimers are extensively used in coatings and pharmaceuticals. Hyper branched polymers are under the class of Dendritic macromolecules. During the last 15 years, scientists, especially polymer chemists, have introduced a new philosophy of `dendritic macromolecules' and prepared globular and spherical molecules in addition to the more conventional linear ones. .Dendritic 14-16 macromolecules are monodisperse and classified into dendrons, dendrimers. Hyperbranched polymers 17-22, which are polydisperse are composed of successive branching units Illustration of more branching in Hyper branched polymers
Synthesis Methodology
We have followed a recently developed a facile and generic synthetic methodology (the “Strathclyde methodology”) for the high yielding synthesis of branched vinyl polymers using conventional free radical polymerization. The methodology involves the simple free radical copolymerization of a vinyl monomer with a difunctional (or multifunctional) comonomer, wherein cross-linking and network formation is inhibited by use of appropriate levels of a stoichiometric free radical chain transfer agent, such as a thiol, or indeed a catalytic chain transfer agent. This process is patented23.
Scheme-1
In general, leather trial results showed that these branched polymers behave as a soft acrylic syntan with less surface hardening characteristics and improved bleaching.
These branched polymers with multiple functionalities also served as a better dispersing and fixing agent for basic chromium sulphate (BCS); importantly, after chrome tanning the residual chromium (measured as % Cr2O3) left behind in exhaustion was considerably reduced23.
The dendrimers can be used like in drug delivery for sustained release of sodium sulphides in unhairing. This could be bring down the load in effluents.
Conclusion: This article is to highlight the various possible
chemistries to be explored. The suggestive pathways needs further studies and would require modifications. The success pathways in other areas are to be ‘technologically translated‘. Much more organic reactions can be adopted and the culture of interdisciplinary research with an amalgamation of scientists in different fields of science and technologists could contribute and unravel the interesting aspects in this field of leather. The next issue will address about Fatliquors, beam house and finishing.
(Ref: Graves , US Pat. 2205882 , 1940,Tomalia DA, Naylor AM, Goddard III WA. Angew Chem, Int Ed Engl 1990;29:138-175. Newkome GR, Moore®eld CN, Voegtle . Dendritic molecules : Concepts , Synthesis , perspectives, NewYork : VCH, 1996FreÂchet JMJ. Science 1994;263:1710-1715. Voit BI. Acta Polym 1995; 46:87-99.Newkome GR, Moore®eld CN, VoÈ gtle F. Dendritic molecules: concepts, syntheses, perspectives. New York: VCH, 1996. FreÂchet JMJ, Hawker CJ, Gitsov I, Leon JW. J Macromol Sci, Pure Appl Chem 1996;A33:1399-1425. Malmstro È m E, Hult A. J Macromol Sci, Rev, Macromol Chem Phys 1997; C37:555-579. Baudry R., Sherrington D.C.., Macromolecules 2006; 39(4) : 1455-1460
All rights reserved by Balmer lawrie & Co.Ltd. All informationsor knowledge sharing only and not for commercial
Balmer Lawrie entered into Leather Chemical business in 1983 by taking up manufacture of synthetic fatliquors in Chennai. Over the years, Balmer Lawrie has added several new products and formulations, developed in-house in its modern R & D facilities at Chennai. Balmer Lawrie is certified with ISO 9001:2015, ISO 14001:2015, OHSAS 18001:2007. Balmer Lawrie is doing significant volume of export to China, Bangladesh, Korea, Iran, Ethiopia, Thailand, Indonesia, Vietnam, Turkey & Egypt.
