BioTEX workshop Brussels 20.11.2008 Jan Marek INOTEX Czech Republic www.inotex.cz PANEL SESSION 1: ENZYMATIC CATALYSIS & BIOFUNCTIONALIZATION OF TEXTILES BioTEX workshop Brussels 20.11.2008 BioTEX TEG - 3 BIO-BASED MATERIALS – BIOTECHNOLOGY Biopolymers and biomass - new base for TAA - surface modification and coating Biocomposites - fibre reinforcements and bio resins - fully biodegradable new materials Smart surfaces and matrices - immobilization of biomaterials - biomedical properties ENVI FRIENDLY PROCESSINGS - Waste water bio-treatment / engeneering - Textile wastes as a fermentation nutrient - recycling of blends - biodegradation of natural - recycling of synthetics - Reverse bio-degradation of new (PHA) biopolymer (fibres – surface layers) New fibres based on biofermentation - shift from refined oil to renewable natural (local) sources - complex utilization of natural fibrous plants - Energy – water saving flexible techniques (CP) Enzymes - cleaner production alternative of harsh chemistry - Selective processing tools - energy, water savings - high yield and flexibility of technology - conjunction of processing steps – time shortening - processability of tailored blends and constructions - complex utilization of natural fibre sources - Emerging BAT - novel enzymes - function and optimization - biocatalytic process design - extremozymes - New functionalized textiles - enzyme initiated grafting of functional additives - synthetic fibre modification - hybridisation - Biocatalysts for future processes of bio-based fibres
Transcript
BioTEX workshop Brussels 20.11.2008
Jan MarekINOTEX Czech Republic
www.inotex.cz
PANEL SESSION 1:ENZYMATIC CATALYSIS
&BIOFUNCTIONALIZATION OF TEXTILES
BioTEX workshop Brussels 20.11.2008
BioTEXTEG - 3
BIO-BASED MATERIALS – BIOTECHNOLOGY
Biopolymers and biomass- new base for TAA - surface modification and coatingBiocomposites- fibre reinforcements and bio resins - fully biodegradable new materialsSmart surfaces and matrices- immobilization of biomaterials- biomedical properties ENVI FRIENDLY PROCESSINGS
- Waste water bio-treatment / engeneering- Textile wastes as a fermentation nutrient
- recycling of blends - biodegradation of natural- recycling of synthetics
- Reverse bio-degradation of new (PHA) biopolymer (fibres – surface layers)
New fibres based on biofermentation- shift from refined oil to renewable natural(local) sources
- complex utilization of natural fibrous plants
- Energy – water saving flexible techniques (CP)
Enzymes - cleaner production alternative of harsh chemistry- Selective processing tools
- energy, water savings- high yield and flexibility of technology - conjunction of processing steps – time shortening- processability of tailored blends and constructions- complex utilization of natural fibre sources
- Emerging BAT- novel enzymes - function and optimization- biocatalytic process design- extremozymes
- New functionalized textiles- enzyme initiated grafting of functional additives- synthetic fibre modification - hybridisation
- Biocatalysts for future processes of bio-based fibres
BioTEX workshop Brussels 20.11.2008
BioTEXWhat industry is asking for:
• Processing time reduction and flexibilityConjuction of processes
Single step x single bath proceduresCutting down of processing timeMultipurpose use of existing devices
• Less energy consuming processesLow temperature proceduresHeat recovery as sufficient source for processing temperatures
• Cleaner production- environment friendly BAT- less chemicals
reduction of water consumption and waste water polution- eco friendly and safe products (ECO-LABELS, REACH)
BioTEX workshop Brussels 20.11.2008
COTTON PRETREATMENT = removal of non-cellulosic impurities
AIM:• uniform and high absorptivity (hydrophilicity)• accesibility of cotton fibre
preparation for next technological stepsbleaching – dying – finishing
end user´s comfort physiological, well-being
BioTEX workshop Brussels 20.11.2008
BioTEXEnzymatic „BIO-SCOURING“ of cotton• Conventional - chemical
- saponification of natural impurities – high alcali (caustic soda)- boiling temperature (+ time or + steam shock)- high dose of chemicals: surfactant, sequestrants …- risk of cellulose damage (DP, tensile strength)
• Enzymatic „BIO-SCOURING“Selective degradation of impurities
pectolytic enzymes- protection of substrate
minimum weight loss- low temperature (50-60°C)- less chemicals
scouring without caustic soda by pH 7,5-8,5lower waste water polutionless chemicals for bleaching
- shortening of processless of chemicals rinsing (rest alcalinity eliminated)start by 40-50°C (recuperated water) – no bath heating upconjunction of stepsdesizing (amylases) – scouring (pectinase)
BioTEX workshop Brussels 20.11.2008
Parameter Alkaline Enzymatic
COD /mg/l/ 9195 7360 (-20%)
BOD /mg/l/ 5392 3 832 (-30%)
pH 12,8 7,5
anorg.salts /mg/l/ 6355 2821 (-45%)
Woven fabric
rising height 2min /mm/
ADP Ash /%/
Fats and waxes /%/
Weight loss /%/
Greige 5 2587 0,78 0,51 -
Enzyme 65 2548 0,58 0,21 2,3
Alkaline 67 2316 0,46 0,10 9,5
KnitGreige 0 2341 1,26 0,91 -
Enzyme 45 2156 0,72 0,31 1,2
Alkaline 50 2067 0,60 0,25 7,3
Alkaline Enzymatic
pH 13,8 8 – 8,5
temperature 95 –100 °C 50 - 60°C
surfactants high biodegrad.
WASTEWATER
SUBSTRATECONDITIONS
COSTSCOSTS Alkaline Enzymatic
Heating 100% 50 %
Water 100% 70 %
Time 100% 85 %
higher saving when rec. 40°C water used and at conjugated processes
Comparison of alkaline and enzymatic pretreatment –conditions and results
BioTEX workshop Brussels 20.11.2008
ONE-step ENZYMATIC DESIZING AND BIOSCOURING – JIGGER
WEIGHT LOOS ALKALINE 14,8 % ENZYMATIC < 1%FR PES – TREVIRA CS WITH NO CHANGE OF FR PROPERTIES
BioTEX workshop Brussels 20.11.2008
R-COOR´ R-COOH + HO – R´
OH – groups forming, verification by reactive dyeing
(soaping – fastness properties)
Colourfastnesses : Comparison of dyeing of untreated and enzyme–treated PET twill
(dyeing with 0,5% reactive dyestuff)
Colourfastness
water : 4D / 4-5 / 4-5
washing 40°C : 4-5D / 4-5 / 4-5
alk. perspiration : 2-3D / 4-5 / 4-5
wet rubbing : 4-5
dry rubbing : 4-5
Colourfastness
water : 4D / 4-5 / 4-5
washing 40°C : 4-5D / 4-5 / 4-5
alk. perspiration : 2-3D / 4-5 / 4-5
wet rubbing : 4-5
dry rubbing : 4-5
C.I.Reactive Blue 19
PET POLYMER STRUCTURE MODIFICATION
- NEW GENERATION OF (MULTI)FUNCTIONAL FINISHING
enzyme
BioTEX workshop Brussels 20.11.2008
unretted 10 days dew-retting
10 days „bio-retting“
„BIO-RETTING“ENZYMES BOOSTING THE BAST FIBRE EXTRACTION AND ELEMENTARISATION
A) spraying of harvested stems on the fieldlong fibre yield increase (+ 43%)linseed flax fibre use – new dimension of economy
B) additional wet processing step – scutched stageloose dyeing device – mechanical cleaningelimination of under x over retting loss (20%)fineness – cleanness – colour improvement
DECOMPOSITION OF NATURAL GLUE COMPONENTS OF FLAX/HEMP STALKPECTINASES – XYLANASES – CELLULASES FAMILY
CUTTING THE CHANGING CLIMATE AND SEASONAL DEPENDENCE
BioTEX workshop Brussels 20.11.2008
NO FEARFOLLOW
THE USE OF ENZYMESIN TEXTILE WET PROCESSING
BioTEX
SIMPLE – EFFECTIVE – NEW FUNCTIONALITYSAVE ENVIRONMENT + MONEY
