Method for preparing non-PVA fiber hollow yarn and hollow fabric thereof

Abstract

The invention discloses a method for preparing a non-PVA fiber hollow yarn and a hollow fabric thereof. The fiber comprises a filament, a short fiber yarn and a ribbon. According to the preparing method, the easily degradable fiber with the controllable degrading condition and zero formaldehyde residue is utilized for preparing a covering yarn, the degrading condition is controllable, and the formaldehyde residue does not exist. Compared with a traditional water solubility fiber hollow yarn, the hollow yarn prepared with the manufacturing method is friendly to the environment, free of residue, low in price and shrinking percentage and obvious in hollow phenomenon, the sizing technology can be carried out, and the hollow yarn can be made into the high-density fabric and the fabric with the single yarn capable of being woven. In addition, the hollow fabric is formed by weaving the hollow yarn prepared with the method for preparing the non-PVA fiber hollow yarn, and has the advantages of being light, fluffy, and good in heat preservation performance, moisture absorbing performance and flexibility.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a method for preparing a non-PVA fiber hollow yarn and a hollow fabric thereof. Background technique [0002] The textile industry is an industry that will always create a better life. Among them, the variety and quality of yarn are the basis of the quality of textile products; the production of new varieties and high-quality yarns at the cheapest cost can satisfy and improve the quality of textile products. It is the fundamental guarantee for the survival, development and prosperity of the textile market to enable the enterprise to occupy an advantageous position in the market. [0003] Hollow yarn is a kind of yarn with hollow structure. Because of its special structure, it has the advantages of light and fluffy, good warmth retention, good hygroscopicity and softness, and makes hollow yarn and its products have excellent Among them, the hollow yarn is mainly suitable for kni...

AI Technical Summary

Problems solved by technology

[0010] Based on the above situation, it can be seen that in foreign countries, water-soluble vinylon fibers are mainly used to develop hollow yarns, while in China, water-soluble vinylon staple fibers are mainly used to develop hollow yarns; however, water-soluble vinylon has the following outstanding problems, which restrict the development of hollow yarns. The popularization and development are as follows: 1. Water-soluble vinylon fiber, which is polyvinyl formal fiber, is not fully dissolved in hot water, and the macromolecules cannot be degraded. The residue often contains formaldehyde, which was very early in European and American countries. It is banned in some fields; 2. Water-soluble vinylon fiber is expensive; 3. The dissolution process of water-soluble fiber in hot water is: the dissolution of water-soluble fiber is the swelling, shrinkage, melting and breaking of the fiber when it is treated with hot water. Diffusion and dissolution, in this process, the fiber shrinkage rate is too large, the shrinkage is too large, resulting in obvious hollow shrinkage, and finally no hollow; 4, water-soluble vinylon fiber shrinks and dissolves in hot water, making the core-spun yarn containing vinylon, Can not go through the sizing process, resulting in only low-density or double-ply fabrics