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Preparation method of regenerated polyester fiber

A technology of recycled polyester and fiber, applied in fiber processing, melt spinning, final product manufacturing, etc., can solve problems such as poor silkiness of polyester fibers

Pending Publication Date: 2022-08-09
唐山市丰南区金翔化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method for regenerated polyester fibers to solve the technical problem of poor silkiness of polyester fibers in the prior art

Method used

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  • Preparation method of regenerated polyester fiber

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Embodiment Construction

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0028] The purpose of this specific embodiment is to provide a method for preparing regenerated polyester fibers; thereby solving the problem of poor silkiness of polyester fibers in the prior art.

[0029] Hereinafter, the embodiment will be described with reference to the drawings. In addition, the embodiments shown below do not have any limiting effect on the content of the invention described in the claims. In addition, the whole content of the structure shown in the following ...

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Abstract

The invention discloses a preparation method of regenerated polyester fibers, and relates to the technical field of regenerated chemical fibers. The preparation method of the regenerated polyester fiber comprises the following steps: S1, cleaning polyester bottle chips; s2, the clean polyester bottle chips are subjected to drum drying; s3, carrying out melt filtration on the polyester bottle chips obtained in S2 to obtain melt spinning; s4, enabling the obtained melt spun yarn to pass through a spinneret plate, so as to obtain a polyester pre-oriented yarn; s5, oiling and winding the obtained polyester pre-oriented yarn to obtain a precursor yarn; s6, carrying out bundling and traction on the obtained protofilaments; s7, performing oil bath and traction on the product obtained in the step S6; s8, carrying out steam heating and traction on the product obtained in S7; s9, folding and curling the product obtained in the step S8; s10, a product obtained in S9 is subjected to relaxation heat setting treatment, and regenerated polyester fibers are obtained; therefore, the problem of poor silky degree of polyester fibers in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of regenerated chemical fibers, and more particularly, to a preparation method of regenerated polyester fibers. Background technique [0002] Polyester fiber is a synthetic fiber obtained by spinning polyester obtained by polycondensation of organic dibasic acid and dihydric alcohol; industrially mass-produced polyester fiber is made of polyethylene terephthalate, China's The trade name is polyester; it is the largest variety of synthetic fibers at present; with the development of the economy and the improvement of living standards, people's requirements for wearing comfort are constantly rising, and simple functional fabrics can no longer meet the requirements, which is very important for new Product research and development put forward higher requirements. [0003] At present, ordinary polyester fibers on the market are widely used in thermal clothing and plush toys, but the silkiness of the existing poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/08D01D10/02D01D1/04D01D1/10D01D5/096D01D1/00D01D4/02
CPCD01D5/08D01D10/02D01D1/04D01D1/106D01D5/096D01D1/00D01D4/02Y02W30/66
Inventor 宋佳王兴华宋莹宋硕乔士彧
Owner 唐山市丰南区金翔化纤有限公司