Preparation To Yarn Manufacture
Ginning
- The primary object of the ginning
consists in separating the fibres from the seed, and a Perfect
ginning operation would be Performed if the separation of fibres
from seed was effected
without the slightest injury to either seeds or to the fiber.
Mixing
- It is not possible or economical to
depend upon a single variety of cotton to produce a particular yarn
throughout the year. So. different available varieties are selected
and mixed in a suitable proportion so as to get uniform Quality
product throughout the year. Object of mixing process are
Blowroom
The Objects of the blow room are : 1. To open the compressed
layer of bale of cotton or any staple fibres. 2. To blend different
varieties of cotton in the desired proposion to prepare the raw
material for the spinning process. 3. To extract the impurities like
broken seeds, husks, leaves, sand, stone & iron particles, short
fibres, immature fibres, dust, dirt and other foreign materials from
the cotton by opening and beating.
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Carding
Study of carding machine may be broadly classified into the
following three heads. licker in section - Carding section -
Condensing section
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Modern
Developments in Blowroom Modern
Blow Room line or latest developments in the B/R machinery consists
Modern mixing machine (Automixer, Multimixer, Aeromixer,
Latest mixing bale opener, Bale plucker etc.,)
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Modern
Changes In Carding 1.Development
in licker-in section 2. carding section. 3. condensing section. 4.
Auto leveller 5. Stop motions 6. Tandem card 7. Dust
Extraction system Salient features of modern high production
card & conversion of conventional card into high production card.
9. Hooked fibres in carding & their effects on yarn quality. 10.
Production and waste control in card 11. Maintenance of card.
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