Hygroscopic polyester fiber and preparation method thereof

A polyester fiber and polyurethane fiber technology, applied in the field of synthetic fibers, can solve the problems of poor hygroscopicity and achieve the effect of improving hygroscopicity and improving surface smoothness

CN111621868AActive Publication Date: 2020-09-04胜利油田兴达高祥新材料有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-09-04

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Abstract

The invention discloses a hygroscopic polyester fiber and a preparation method thereof. The preparation method comprises the following steps: 1) preparing polyester through substitution reaction of terephthaloyl chloride and ethylene glycol, and mixing and dissolving the polyester with chitosan to obtain a spinning solution; 2) performing dry spinning; and 3) hydrolyzing chitosan blended in fiberfilaments by using cellulase and N-acetylglucosaminidase to obtain the fiber filaments with a large number of pore channels in the surfaces and the interiors. The defects of smooth surface and poor hygroscopicity of a PET fiber are overcome.
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Description

technical field

[0001] The invention belongs to the field of synthetic fibers, and in particular relates to a hygroscopic polyester fiber and a preparation method thereof. Background technique

[0002] As the largest synthetic fiber, polyester is polyethylene terephthalate, or PET for short, which is formed by esterification polymerization of ethylene glycol and terephthalic acid. Polyester has many excellent properties, such as excellent stretchability and shrinkage resistance, high elastic modulus and breaking strength, good resilience, good thermoplasticity, heat and light resistance, stable size, and low price, so it is widely used in clothing industry. However, polyester has disadvantages such as poor dyeability, poor hygroscopicity, and smooth surface. Therefore, in order to improve the shortcomings of polyester, it is necessary to modify polyester.

[0003] Carrying out hygroscopicity modification to PET can start from many aspects, prior art mainly carries out mod...

Examples

Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with specific examples, but the examples do not limit the present invention in any form. Unless otherwise specified, the reagents, methods and equipment used in the present invention are conventional reagents, methods and equipment in the technical field.