Analysis of the reasons for the lack of weight of textile fabrics

Flame retardant fabric produced by Yulong textile in Xinxiang City

1. When purchasing raw yarn, yarn is thin, for example, 40 actual measurement only 41 yarn.
2. The return tide rate is insufficient. After printing and dyeing, the moisture loss is a lot when drying, and the specification of fabric refers to the gram weight under the standard moisture return rate. Therefore, when the weather is dry and the dry cloth is not fully returned to the tide, the weight of gram will be insufficient, especially the natural fibers such as cotton and hemp wool, and the deviation will be very large.
3. The wear of the original yarn is larger in the weaving process, which will lead to excessive hairiness falling off, resulting in the yarn spinning becoming finer and the weight of the yarn is low.
4. In the dyeing process, the re dyeing will lead to the yarn loss and the yarn yarn become finer.
5. In the process of firing, too much fire will cause the cloth surface to be too dry, and yarn damage will lead to fine during desizing.
6. The damage of alkali to yarn during mercerizing.
7. The damage of the cloth surface by gripping and polishing.
8. Later, the density did not meet the process requirements. It is not produced according to the specifications, and the weft density and the warp density are insufficient.