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Showing posts with label Silk. Show all posts
Showing posts with label Silk. Show all posts

SYNTHETIC YARN


1                    Production Process

The production process involves the following sub- processes.
·        Opening, Blending and Cleaning
·        Carding
·        Drawing
·        Roving
·        Spinning
·        Winding
·        Twisting

Opening, blending and cleaning: -All staple fibers must pass through some form of opening, blending and cleaning to convert compressed bales of fiber into an open sheet for presentation to the carding machine.
Carding: - is the last major cleaning and opening operation in the normal process and converts the open flock into a condensed sliver reducing its weight per meter to 100th of the flock weight.

Drawing: - The draw frame draws several slivers from the card and attenuates them to the dimensions of one thus increasing the uniformity of the product.

Roving:- The objective of roving is to attenuate further and to even the sliver, give it some twist to the strength required at this stage, and wind onto a bobbin to fit a ring frame creel. This process is eliminated in open-end [rotor] spinning.

Spinning: - It is the final process in the transformation of fiber into yarn or thread.
Spinning twists fibers of finite length together to form a long, continuous length of thread or yarn. The yarn is finally wound in appropriate container like cone, cops, reel etc. by using winding machine according to the market demand.

The production of yarn starts from dyed fiber as a result no finishing operation is involved which uses many chemicals which requires treatment plant before disposal. So the envisaged plant has no any adverse impact on environment.

SILK GARMENT


Process Description

The major unit operations involved in silk garment making consists of the following.

- Pattern design and pattern making;
- Silk Cloth cutting, grading process by mechanical cutting system and piece bundling;
- Sewing by sewing machine;
- Trimming and inspection;
- Ironing and pressing for finishing process; and
- Button-hole making, buttoning, and fixing of zippers and other accessories are done at all required points.

The silk fabric in different colors/designs is spread on a table and is cut with hand scissors as per required design size and shape of the garments. The cut pieces are stitched by lock/sewing machines. Button holing and stitching, hook attaching etc is done manually. The garments are then pressed and packed in cartons.

Production of silk garment does not have any negative impact on environment.

SILK FABRICS


Production Process

Silk fabric can be produced either by weaving or knitting but knitted silk fabric is envisaged for this project and the process is discussed briefly as follows.

The raw material (Silk Yarn) that has been delivered is wound on a cone, which is most suitable for knitting. The silk yarn is then placed on the knitting machines for knitting in to cloth.

The silk fabric is inspected for knitting damage and other flaws, and sub-standard goods are eliminated.
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