Why does spinning need desizing? What is the role of desizing?

Why does spinning need desizing? What is the role of desizing?

Why does spinning need desizing? What is the function of desizing? During the weaving process, the warp yarns are subject to greater tension and friction and are prone to breakage. In order to reduce warp breakage and improve weaving efficiency and gray fabric quality, the warp yarns need to be sizing before weaving. This causes the fibers in the yarn to stick together and form a strong sizing film on the yarn surface, making the yarn tight and smooth. Smooth, thus improving the breaking strength and abrasion resistance of the yarn.
The slurry used can be divided into natural slurry (starch, sodium alginate), modified slurry (soluble starch, carboxymethyl cellulose), and synthetic slurry (polyvinyl alcohol PVA, polyacrylate PA).

The presence of sizing on the original cloth is not conducive to subsequent scouring and bleaching processes. The desizing process is the basis of fabric pre-treatment. This process can remove most of the sizing on the original fabric to facilitate scouring and bleaching processing, and can also remove some natural impurities.
The sizing rate is related to fiber quality, yarn count, density, and loom type. It is generally 4% to 8%. Line fabrics do not need sizing or the sizing rate is below 1%. Compact fabrics (such as poplin) The sizing rate can reach 8%~14%. In recent years, the warp sizing rate of high-speed looms has exceeded 14%.

Keywords:
Spinning Spinning Desizing
AA

Disclaimer:

Disclaimer: Some of the texts, pictures, audios, and videos of some articles published on this site are from the Internet and do not represent the views of this site. The copyrights belong to the original authors. If you find that the information reproduced on this website infringes upon your rights, please contact us and we will change or delete it as soon as possible.

AA