Preparation method of novel wool-like differential fibers

Abstract

The invention discloses a preparation method of novel wool-like differential fibers, which is characterized by comprising the following steps of: 1) adopting polytrimethylene terephthalate (PTT) as a raw material to prepare a pre-oriented yarn (a); 2) adopting modified high-shrinkage polyester as a raw material to prepare fully-drawn high boiling water shrinkage fibers (b); and 3) on a DTY machine, passing the pre-oriented yarn (a) through a roller, a hot box and a cooling plate, performing drawing false twisting on the pre-oriented yarn on a false twister, converging the pre-oriented yarn with the high boiling water shrinkage fibers (b) in front of two rollers, and performing network compounding on the pre-oriented yarn and the high boiling water shrinkage fibers, and then passing the pre-oriented yarn and the high boiling water shrinkage fibers through two hot boxes to obtain a composite yarn product. The preparation method develops the novel wool-like differential fibers, the PTT fibers floating on the surface layer are much closer to wool fibers in performance and are superior to common wool-like products in the performance of elastic recovery, handfeel, antistatic property, dyeing and the like, and simultaneously, the treatment of forming different sections of the two raw materials ensures that the products have significant improvements on luster and fibrillation resistance.

Description

technical field [0001] The invention relates to the technical field of producing polyester composite filaments, in particular to a method for preparing novel wool-like differentiated fibers. Background technique [0002] At present, there are endless polyester wool-like products on the market, but they are generally based on the composite processing of some conventional raw materials. With the continuous emergence of new raw materials, the development field of multiple and changeable composite fibers is wider. Differential fibers refer to chemical fibers that are innovative or have a certain characteristic of conventional chemical fibers, and are mainly produced through chemical modification or physical deformation of chemical fibers. Polytrimethylene terephthalate (PTT) fiber is a new type of fiber that has emerged in China in recent years. The fiber has excellent wearability, soft hand feeling, excellent elasticity, and hygroscopicity, antistatic performance, and stain res...

AI Technical Summary

Problems solved by technology

Polytrimethylene terephthalate (PTT) fiber is a new type of fiber that has emerged in China in recent years. The fiber has excellent wearability, soft hand feeling, excellent elasticity, and hygroscopicity, antistatic performance, and stain resistance. All aspects have advantages over conventional PET fibers. At present, PTT fibers have not been used to develop a new type of wool-like differentiated fiber that is rigid on the inside and soft on the outside.

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