A

Presentation

On

“SPINNING PROCESS”(TEXTILE)

SUBMITTED BY:- SUBMITTED TO:-

NEELAKSHI SONI MR.DHEERAJ JAIN

Head (EC & EIC)

ITM Bhilwara

Presentation Flow:

• Introduction-Company profile.

• Spinning process.

• Types of spinning process.

• Flow chart of spinning process.

• Cotton yarn manufacturing.

Company Profile

• It was established in 1971.

• It’s turnover is US$900 million.

• It is producing over 18 million of fabric every year.

• Product profile covers wool,wool-blended and premium light weight fabrics,to wool modal , trevira wool and other specialized fabrics blended with lycra,Silk ,linen,Tencel etc .

Spinning process

Spinning is the first steps of textile

product processing.

The fibers undergo number of

process stages so that a yarn can be

made out of them. This procedure or

process stages in correct sequence is

called “Spinning”.

Fiber extrusion or conversion of

filaments from Polymers was also

considered as “Spinning”.

Flow Chart Of Spinning Process:-

Ginning And Mixing:-

Ginning:-It is a process of

separating the fibers from

cotton seeds

Mixing:-It is a process of mixing

the seprated fibers and

these mixed fibers are sent

to blowroom.

The Blowroom:-

It involves a set of machinery which opens and cleans the row cotton .Basic

operations in the blowroom are :-

Opening and mixing

Cleaning

Dust removal

Blending

Opening

It is the first operation within the blowroom in which the

goal is always high degree of openess of material with

gentle treatment and a fiber loss as less as possible

Cleaning It is a process to remove the

impurities. It depends on rawmaterial and the environmentalconditions.

Cleaning efficiency always has tobe optimized and not maximized.

Dust Removal

It is mainly suction units

which removes the dust.

Dedusting in the blowroom

happens by air suctioning

only ,either between the

machines, e.g by dust

cages ,dust extractractors

or within the machines by

normal air sepration .

The efficiency depends not

only on the devices but

only on the size of the

flocks.

Blending

• It is a process which collects the

bunches of fibers arriving

sequentially from individual bells

and mix them thoroughly.

• Multimixer is the machine of

blowroom where the uniform

blending is carried out

Carding:- The fibers are separated than

assembled into a loose strand

The fiber will be disetangled

and straightened. The

straightening process puts the

fiber into a parallel lengthwise

alignment . The initial process of

arranging the fibers in parallel

fashion is known as carding .

The output of the carding

machine is called card silver.

Types of carding machine

Drum carder Cottage carder

Combing:-

The process of straightening and

parallelisings of fibers and the removal of

short fibers and impurities by using a

comb on combs assisted by brushes and

rollers is called combing.

Objects of Combing:-1.To remove the short fibres below a pre-

selected length.

2. Elimination of remaining impurities.

3. Elimination of large proportion (not all)

of the neps in the fibre.

4.To straighten the fibres.

Draw Frame:-

This is the machine on which

drafting & doubling are

carried out. Carded sliver is

that they are not even

(uniform) enough to produce

to good quality yarns.

Therefore, usually all the

carded slivers are subjected

to Doubling & Drafting on a

machine called “Draw

Frame”

Tasks Of Draw Frame

1.Equalizing:- Is task to improve evenness over short, medium and

especially long terms.. It is obscured by draw frame. Equalizing is always

performed by a first process, namely doubling and can optionally also be

performed by a second process, namely auto leveling.

2.Parallelizing:- To obtain an optional value for strength in the yarn

characteristics, the fibers must be arranged parallel in the fiber strand.

The draw frame has the tasks of creating this parallel arrangement.

3.Blending:- doubling provides a degree of compensation of raw

material variation by blender. Task is to select the number of slivers

entering the machines.

The product delivered by

roving machines is called

Roving. Roving is a Fibre

strand of lesser count than

that of a sliver. It is also has

a small twist to keep Fibres

together. It is wound on to

a package which is suitable

for feeding spinning

machines.

Roving Frame/Speed

Frame:-

Ring Spinning:-

Spinning process is done by the

machine called ring frame.Ring

frame converts the bobbin into a

yarn.The bobbin taken from the

previous process fly frame is

mounted on ring frame either

automatically or manually. The ring

frame stratches the material using a

drafting using 2s to 140s

Advantages Of Ring Spinning1. Any type of material (Fibre) can be spun.

2. Wide range of count can be processed.

3. It delivers a yarn with optimum characteristics.

4.It is uncomplicated and easy to operate.

6. Higher yarn strength can be achieved.

Disadvantages Of Ring

Spinning1. Low production.

2. Machine generates more heat.

Winding:-Winding is the last step of

processing.After winding yarn

packages are used for making

woven or knitted fabrics.It can be

defined as the transfer of spinning

yarn from one packages

(corn,spool,pirn etc).It can be

defined as the transfer of yarn from

ring boobin,hanks etc into a

convenient form of package

containing considerable long length

of yarn .A process of accumlating

yarn on a package to faciltate the

naxt process is called as winding

Objective of winding

• To transfer yarn from spinning bobbin package to a convenient

yarn package.

• To improve the quality of yarn .

• To get suitable yarn package.

• To get a quality fabric.

• To get good warp yarn .

• To empty the spinner’s bobbin so that it can be used again .

• To remove dust and clean the yarn .

• To reduce labor cost .

• To store the yarn.

• To improve the efficiency of yarn for next process.

Requirements of winding:-

Winding process should be accurate for accelarate the

next textile manufacturing process.Winding process

should fulfill the following requirement:-

•It should be easy .

•Characterstics of the yarn should not be changed.

•Winding faults should be minimize.

•Yarn package size and shape should be suitable.

•It should be economical.

•Yarn package should be cheap in cost.

•Avoid excess looseness or tightness.

references

• www.textilelearner.blogspot.com

• www.slideshare.net

• www.yahoo.com/answers

• www.textileguide.com

THANKS