A kind of positive polyester composite sea-island fiber and its preparation method

Abstract

The invention discloses cationic dacron composite sea-island fibers. The cationic dacron composite sea-island fibers are formed by compounding a polyester sea-island fiber, a cationic polyester sea-island fiber and a high-shrinkage polyester fiber at a ratio, wherein the polyester sea-island fiber and the cationic polyester sea-island fiber are in a double-spiral shape, cover the high-shrinkage polyester fiber and are compounded together through network points; the distance between the network points is 5mm to 100mm. The invention further discloses a preparation method of the cationic dacron composite sea-island fibers. The preparation method comprises the following steps: selecting pre-orientated polyester sea-island fibers and pre-orientated cationic polyester sea-island fibers according to the ratio; drafting, falsely twisting, compounding, adding a network by a nozzle, and winding and molding to obtain the cationic dacron composite sea-island fibers. The cationic dacron composite sea-island fibers disclosed by the invention have the characteristics of abundant color changes, diversified styles, wide application range and the like.

Description

technical field [0001] The invention relates to a chemical fiber and a preparation method thereof, in particular to a cationic polyester composite sea-island fiber and a preparation method thereof. Background technique [0002] With the development of society and the advancement of science and technology, people's demand for clothing is no longer just to keep warm, but to pay more attention to the beauty of clothing. The traditional single-tone and monotonous-style fabrics can no longer satisfy people's pursuit of the beauty of clothing fabrics. It is urgent to seek rich color changes. , and diverse styles of fabrics, so people began to explore the blending of different natural fibers, the blending of natural fibers and chemical fibers, and the blending of different chemical fibers to achieve changes in fabric color and style, but this production method has many processes and a long process. Production costs are high. Chemical fibers are the first choice for developing fabr...

AI Technical Summary

Problems solved by technology

The cationic colorful composite yarn produced in this way belongs to the composite of FDY and POY. Due to the high elongation and poor thermal stability of POY, this kind of cationic colorful composite yarn has no wearable performance and its application range is limited.

[0006] At present, there are few technical literatures reporting and disclosing double-color sea-island fibers. Therefore, in exploring the use of chemical fibers to prepare double-color effect fibers, especially the study of a sea-island fiber with rich colors, various styles and a wide range of applications and its production methods have become a new hot spot.