Zipper

A fastening device operating by means of two parallel rows of metal or plastic teeth on either side of a closure that are interlocked by a sliding tab. The teeth are carried in two zip fastener tapes that run the length of the zip and which are usually stitched into apparel and other textile products. 

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Zone of Garments

The zone of garments means to indicate the important part of garments. Zone of garments are divided into two types. These are,

1. Zone-A.
2. Zone-B.

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Zig-Zag Twill Weave

There are also known as pointed twill's. In these classes of twill weaves the twill progresses in one direction for half of the repeat and then is reversed for the next half of the repeat. The reversal of the twill may be done in a regular or irregular manner. Ideally the reversal of the twill should be done considering the series of threads that predominates the face of the fabric.

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