Identification of Warp and WEFT Yarn in a Woven Fabric

Warp yarn and weft yarn are widely used for a woven fabric. The quantity of yarn should be known clearly. Using EPI and PPI test can calculate warp and weft yarn. Before calculating, warp and weft yarn in a woven fabric must be identified.
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Identification of warp and weft yarn in a woven fabric: The characteristics of warp and weft yarn differ from each other. Followings are the main characteristics of warp and weft yarn.

1.Warp count is better than weft count.
2.Warp yarn is more twisted than weft yarn
3.Yarn which contains size particles is warp yarn.
4.Normally stripe effect is done in warp direction (both woven and printed fabric).
5.Warp yarns are relatively hairy yarn.
6.Warp crimp is expected to be less than weft crimp due to high warp tension on the loom.
7.The selvedge direction is warp.

Warp and weft yarn is used for interlacement for producing woven fabric.

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