Yarn
manufacturing technology is the first process of textile technology. Yarns are
collect from different spinning mill. Where used different raw materials. In
this process and it’s the first step of yarn processing.
Raw Cotton >>
Blow Room>>Lap
Lap>>Carding>>Carded Sliver
Carded Sliver>>Drawing 1>>Drawn Sliver
Breaker Sliver>>Drawing 2>>Finisher
Drawn Sliver
Finisher Drawn Sliver>>Simplex/ Speed
Frame>>Roving
Roving>>Ring Frame>>Yarn
Yarn>>Winding>>Yarn
In Large Package.
The textile fiber is the materials which consist fibrous
structure and whose length is thousand times longer than they are wide and can
spun into yarn, suitable for weaving or knitting and easily colored by suitable
dyestuff are known as textile fiber. The conditions of the yarn produced on
spinning machine are not always good enough for fabric formation. Package size,
yarn surface characteristics and other factors make it necessary for both warp
yarn and weft yarn to be further processed for efficient fabric formation. The
preparatory process is more necessary in fabric manufacturing process.
Dyeing and dying Machine
Dying process is carried out using mechanical means dyeing or wetting process. The dyeing liquor is distributed homogeneously onto the fabric. In second stage the dye penetrates into the fabric and then fixed. At the end of the process the material is washed.
The machine provides sufficient movement for the liquor to penetrate uniformly into every part of goods. The liquor movement shouldn’t be vigorous that it damages the finer materials. Machine must be constructing of a materials which will withstand pronged boiling with acid or alkaline solution. Heating arrangement should be such that uniform temperature could be maintained. There should be some means of adding the concentrated dyestuff solution in such a way that it becomes well diluted against the corrosive action of stem and acidic atmospheric condition.
Solution dyeing:
pigments or dyestuffs are dispersed in the spinning solution where the fibers are manufactured. There some difficulties in this process of obtaining color on fabric.
Fiber Dyeing:
fiber are dying in there loose state where the fiber are less langled and dyed thoroughly. Fiber dying is expensive to produce. There is better penetration of the dye into the fiber which processes a higher degree of color fastness of color fastness fabric. Direct, sulfur, vat and developed dyes are used on cellulose fiber.
Yarn Dyeing:
yarn are dyed by the three methods namely, skein dyeing, package dyeing and beam dyeing. Yarn dying is best adapted to large quantity dyeing. Gingham, chambrays. Denims and madras are dyed by this method.
Dying process is carried out using mechanical means dyeing or wetting process. The dyeing liquor is distributed homogeneously onto the fabric. In second stage the dye penetrates into the fabric and then fixed. At the end of the process the material is washed.
The machine provides sufficient movement for the liquor to penetrate uniformly into every part of goods. The liquor movement shouldn’t be vigorous that it damages the finer materials. Machine must be constructing of a materials which will withstand pronged boiling with acid or alkaline solution. Heating arrangement should be such that uniform temperature could be maintained. There should be some means of adding the concentrated dyestuff solution in such a way that it becomes well diluted against the corrosive action of stem and acidic atmospheric condition.
Solution dyeing:
pigments or dyestuffs are dispersed in the spinning solution where the fibers are manufactured. There some difficulties in this process of obtaining color on fabric.
Fiber Dyeing:
fiber are dying in there loose state where the fiber are less langled and dyed thoroughly. Fiber dying is expensive to produce. There is better penetration of the dye into the fiber which processes a higher degree of color fastness of color fastness fabric. Direct, sulfur, vat and developed dyes are used on cellulose fiber.
Yarn Dyeing:
yarn are dyed by the three methods namely, skein dyeing, package dyeing and beam dyeing. Yarn dying is best adapted to large quantity dyeing. Gingham, chambrays. Denims and madras are dyed by this method.
Garments Technology
Bangladesh is the first place in the area for textile and
garments industries due to better garments product and cheap production cost
and constructive trade’s status with US, UK, AUS countries. There is huge yarn
and fabric demands supply in RMG industries. Now a days about 80%-90% of this
demand is met by imports from different countries of the world. There are many
product are served by the garments like T-shirt, Gents, polo shirt, and many
others and the garments accessories is threads, bottons, lining, interlining,
labels, care labels etc.
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