Sizing agent and sizing process for cotton yarn sizing

Abstract

The invention relates to the technical field of yarn sizing, and specifically discloses a size and a sizing process for cotton yarn sizing. Wherein, the slurry is composed of the following components in parts by weight: 55-65 parts of modified starch CD-DF515, 10-20 parts of triethanolamine, 5-8 parts of dopamine grafted chitosan, 2-3 parts wax, 0.4-0.6 parts of antistatic agent BP; the sizing process utilizes double sizing machines to double-dip and double-roll warp yarns, and each sizing tank is filled with sizing after the sizing process is completed, and the viscosity of the sizing is 8.0 Pa•s~9.0Pa•s, slurry tank temperature 90℃~95℃, vehicle speed 50m / min~60m / min, grouting pressure 15KN~25KN, moisture regain 6.5%~7.5%. The invention has good sizing effect and long-lasting effect, can greatly improve the cohesive force, wear resistance and strength of sizing yarns, significantly reduce the number of warp stops and weft stops, and is more conducive to weaving.

Description

technical field [0001] The invention belongs to the technical field of yarn sizing, and in particular relates to a sizing material for cotton yarn sizing and a sizing process. Background technique [0002] Yarn sizing is a key link in textile engineering. The purpose of sizing is mainly to improve the wear resistance of yarn, reduce hairiness, increase the strength of yarn appropriately, and reduce elongation, so as to withstand the mechanical action of yarn in the weaving process. force and improve the weavability of the yarn. [0003] The material used for warp sizing is called size, which is divided into binders and auxiliary agents. The binder plays a major role in the sizing process and is responsible for bonding the fibers in the warp and forming a size film on the surface of the warp. The task is to resist the abrasion and stretching of the warp yarn during the weaving process, and the binder is also called the main size. At present, there are many kinds of yarn siz...

AI Technical Summary

Problems solved by technology

Starch is a natural polysaccharide polymer, natural and environmentally friendly, and easy to desizing, but the sizing strength of starch size is not strong enough, and it is not wear-resistant; PVA size film is strong, flexible and fluid, but it is difficult to desizing , and cause great environmental pollution; polyacrylic acid slurry is a general term for homopolymers, copolymers and blends of acrylic monomers. It has low viscosity, good fluidity and adhesion, but the price is high, which improves printing and dyeing production cost of the enterprise

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