Mixed spinning method for three-dimensional crimp acrylic fiber

Abstract

The invention relates to a mixed spinning method for three-dimensional crimp acrylic fiber. The mixed spinning method comprises the steps that (1) maintenance treatment is carried out on the three-dimensional crimp acrylic fiber, and then blowing and cotton carding are carried out to form slivers; (2) the three-dimensional crimp acrylic fiber is mixed with other textile fiber, lastly, roving, spinning and spooling are carried out, and the three-dimensional crimp acrylic fiber is obtained. The mixed spinning method for the three-dimensional crimp acrylic fiber has the advantages that own crimpcharacter of the fiber is utilized, the fiber is not influenced easily in subsequent processing and use process and loses the three-dimensional crimp feature, fabric has a memory effect through mixedspinning, and the crimp form is durable; the fluffiness and the heat retention are stronger, the hand feeling is more comfortable, the cohesive force of the fiber during processing and the size stability of the fabric are improved, and the application prospect is good.

Description

technical field [0001] The invention belongs to the field of spinning, in particular to a mixed spinning method of three-dimensional crimped acrylic fibers. Background technique [0002] Three-dimensional crimped acrylic fiber is a composite acrylic fiber developed by Japan Toyobo. It is similar to the principle of bulked yarn. The three-dimensional crimped fiber is formed due to the different shrinkage rates of different components in the raw material. The fabric made of this fiber has a plump hand feeling, which is closer to wool fabric, and has good elasticity. [0003] As we all know, the bulking degree of bulked yarn is the degree of expansion of the original yarn after heat and humidity treatment. It is the main factor determining the bulkiness, softness and elasticity of the finished fabric. However, it is difficult to control the shrinkage of each batch, so The stability of the product quality is difficult to guarantee, and it can only be washed in warm and cold wat...

AI Technical Summary

Problems solved by technology

[0003] As we all know, the bulking degree of bulked yarn is the degree of expansion of the original yarn after heat and humidity treatment. It is the main factor determining the bulkiness, softness and elasticity of the finished fabric. However, it is difficult to control the shrinkage of each batch, so The stability of product quality is difficult to guarantee, and it can only be washed in warm and cold water with low temperature. The yarn stability is poor, which limits the further application of three-dimensional crimped acrylic fiber

[0004] In the existing technology, the three-dimensional crimped fiber has been prepared by melt spinning method. If the crimp is high, the fiber is easy to shrink into a small ball, which is not conducive to the smooth opening and drafting, resulting in many neps on the yarn. Affect the quality of yarn; if the degree of crimp is too low, the fiber can hardly withstand the drafting of multiple processes, it is easy to straighten and lose its important characteristics, the sliver cohesion is poor, the spinnability and yarn quality are not good, and the process requirements are too harsh