A kind of high-elasticity low-shrinkage denim fabric and its technology

Abstract

The invention discloses a high-elasticity low-shrinkage denim fabric and its technology. The warp yarn and weft yarn interweaving rule of the denim fabric is three up and one down. The specific process is: winding—warping—sizing and dyeing combination—weaving—grey cloth inspection— Finishing processing—finished product inspection—packing; the invention relates to a high-elasticity low-shrinkage denim fabric and its technology, which adopts a 3 / 1 twill weave, and adopts cotton bales T400 spandex weft yarn or staple fiber pure polyester-wrapped spandex or blended cotton type Wrapped with spandex weft yarn, the denier of spandex is 70D~105D, the draft ratio is between 3.5~4.5, the warp tightness of the upper machine is between 45%‑75%, and the weft tightness of the upper machine is 38%‑55% Among them, according to the specific process, the gray cloth is finished to make the width of the finished product as narrow as possible to reduce the shrinkage in the weft direction, which can effectively solve the problems in the garment making and washing process. The on-machine process and the specific finishing process can meet the requirements of denim weft extension ≥ 35%, recovery rate ≤ 2.5%, and weft shrinkage ≤ 10%.

Description

technical field [0001] The invention relates to the field of textile fabrics and the field of textile technology, in particular to a high-elasticity low-shrinkage denim and its technology. Background technique [0002] At present, the best-selling high-elastic denim fabrics on the market have a weft extension of more than 30%, but the weft shrinkage is generally more than -12%, which will lead to difficulties in the manufacture of garments and increased loss and loss of elasticity during the washing process. Therefore, it is necessary to invent a denim fabric with high elasticity and low shrinkage to meet the market demand and can effectively solve the problems in the garment making and washing process. The present invention adopts specific warp and weft yarns, specific weaving machine technology and specific The finishing process can meet the requirements of denim weft extension ≥ 35%, recovery rate ≤ 2.5%, and weft shrinkage ≤ -10%. Contents of the invention [0003] Th...

AI Technical Summary

Problems solved by technology

[0002] At present, the best-selling high-elastic denim fabrics on the market have a weft extension of more than 30%, but the weft shrinkage is generally more than -12%, which will lead to difficulties in garment manufacturing and increased wear and tear.

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