Polyester blended fiber and preparation method thereof

A blending fiber and blending technology, which is applied in the field of polyester blended fibers, can solve the problems of different dyeing properties, poor dyeing uniformity of composite fibers, and prone to color difference in fabrics, etc.
CN103757745AActive Publication Date: 2014-04-30CHINESE TEXTILE ACAD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINESE TEXTILE ACAD
Publication Date
2014-04-30

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Abstract

The invention relates to a polyester blended fiber, and in particular relates to the polyester blended fiber and a preparation method thereof. The polyester blended fiber is prepared by modified polyester and polyamide through blending and melt spinning, wherein the modified polyester accounts for 60-95% of total quantity of the blended fiber in weight percentage, and the polyamide accounts for 5-40% of total quantity of the blended fiber in weight percentage. The glass-transition temperature of the modified polyester blended fiber is 50-75 DEG C, the dye-uptake rate of acid dyes under normal pressure is 85-99%, the dyeing uniformity is in 4-5 level, the moisture regain is 1.2-2.8% and the volume resistivity is 1.0*10<9>-5.0*10<12> Omega.cm. The polyester blended fiber can be dyed to have dark color by acid dyes at normal temperature and under normal pressure, the fiber and the fabric have soft handfeel and good moisture absorption property, and the problems of poor dyeing uniformity of the modified polyester complex fiber prepared by a combined melt spinning method and color difference of the fabrics are solved.
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Description

Technical field

[0001] The invention relates to a polyester blend fiber, in particular to a modified polyester blend fiber and a preparation method thereof. Background technique

[0002] Polyester fiber has excellent properties such as high strength, high modulus, wear resistance and heat resistance, so it is widely used in clothing, home textiles, industry and other fields. However, due to the good linearity of the polyester molecule, there are no large side chains and branches on the molecular chain, and after stretching and shaping during the spinning process, the molecules are arranged neatly, with high crystallinity, good orientation, and intermolecular voids Small, the dye is not easy to penetrate; there are no hygroscopic groups such as hydroxyl and amino groups on the macromolecular chain, only ester groups with less polarity, so polyester fiber as a textile material has the disadvantages of poor dyeability, low hygroscopicity, and easy to generate static electricity. Th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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