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High-strength sun-resistant anti-aging polyester pre-oriented yarn for curtains and preparation method of polyester pre-oriented yarn

A pre-oriented yarn, anti-aging technology, applied in the direction of spinning solution preparation, rayon manufacturing, fiber chemical characteristics, etc., can solve the problems of reducing the physical properties of polyester fibers, incompatibility, poor dispersion uniformity, etc., and achieve obvious beneficial effects Effect

Pending Publication Date: 2022-05-13
TONGKUN GRP ZHEJIANG HENGTONG CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the copolymerization modification method can solve the problem of the physical coating method, for polyester fibers, any additives may become "impurities" affecting polyester, resulting in poor dispersion uniformity in the production process of polyester fibers , Incompatibility with polyester macromolecules and other issues increase the difficulty of fiber processing and reduce the physical properties of polyester fibers

Method used

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  • High-strength sun-resistant anti-aging polyester pre-oriented yarn for curtains and preparation method of polyester pre-oriented yarn
  • High-strength sun-resistant anti-aging polyester pre-oriented yarn for curtains and preparation method of polyester pre-oriented yarn

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Embodiment 1

[0070] Such as Figure 1 to Figure 2 As shown, the embodiment of the present application provides a preparation method of polyester pre-oriented yarn for high-strength sun-resistant and anti-aging curtains, which is characterized in that it includes the following steps:

[0071] S1. Configuration: A homogeneous slurry suspension is formed by the suspension of polyethylene terephthalate (PTA), ethylene glycol (EG) and pentaerythritol under the stirring action of the stirrer;

[0072] S2. Esterification: react the slurry suspension at a temperature of 260-275°C for 4-6 hours to generate bishydroxyethyl terephthalate (BHET);

[0073] S3. Polycondensation: After the esterification reaction, bishydroxyethyl terephthalate (BHET) is added to the titanium dioxide suspension through the online high-proportion homogenized titanium dioxide injection technology;

[0074] S4. The spinning melt obtained in step S3 is injected with 0.05% viscosifying chips, dried at 145° C. for 3 hours, mel...

Embodiment 2

[0078] In this embodiment, in addition to the structural features of the preceding embodiments, the online high-proportion homogenized titanium dioxide injection technology includes the following steps:

[0079] A1: Titanium dioxide and ethylene glycol are stirred at high speed in the blending tank to form a titanium dioxide suspension;

[0080] A2: The titanium dioxide suspension that has passed the test enters the feed tank with a temperature display gauge and a liquid level gauge;

[0081] A3: A pipeline is installed at the bottom of the feed tank to connect to the front of the precondensation in step S3, and the amount of titanium dioxide added is controlled by a liquid level gauge.

[0082] In this embodiment, due to the adoption of the above-mentioned structure, the titanium dioxide in the fiber is uniformly dispersed through this technology, and the addition amount of titanium dioxide can be flexibly adjusted according to customer needs. At present, the titanium dioxid...

Embodiment 3

[0084] In this embodiment, in addition to the structural features of the preceding embodiments, it also includes an online filtering method for components:

[0085] B1: Put the metal non-woven super felt filter material at the bottom of the sand cup;

[0086] B2: Put 60g 40 mesh metal sand, 50 mesh filter screen, 60g 60-80 mesh metal sand, 50 mesh mesh, 50g 80-100 mesh metal sand into the sand cup in turn;

[0087] B3: Increase the initial pressure of the components from 15.0Mpa to 17.5Mpa.

[0088] In this embodiment, due to the adoption of the above-mentioned structure, the filter performance is improved through the component filter technology, and the number of broken ends is reduced.

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Abstract

The invention discloses a preparation method of a polyester pre-oriented yarn for a high-strength, sun-resistant and anti-aging curtain. The preparation method comprises the following steps: preparing: forming a uniform slurry suspension from polyethylene glycol terephthalate, ethylene glycol and pentaerythritol suspension under the stirring action of a stirrer; esterification: reacting the slurry suspension at high temperature for 4-6 hours to generate bis (2-hydroxyethyl) terephthalate; polycondensation: after the esterification reaction is finished, adding the bis (2-hydroxyethyl) terephthalate into a titanium dioxide suspension through an on-line high-proportion homogenized titanium dioxide injection technology; according to the polyester pre-oriented yarn for the high-strength sun-resistant anti-aging curtain and the preparation method of the polyester pre-oriented yarn, titanium dioxide can absorb ultraviolet rays, can reflect and scatter the ultraviolet rays and can also penetrate through visible light, so that the polyester pre-oriented yarn has the advantages that the polyester pre-oriented yarn is high in strength, resistant to sunlight and anti-aging, and the polyester pre-oriented yarn has a good anti-aging effect. The material is an ultraviolet-shielding raw material with excellent performance.

Description

technical field [0001] The invention belongs to the technical field of chemical fiber production, in particular to a polyester pre-oriented yarn for high-strength sun-resistant and anti-aging curtains and a preparation method thereof. Background technique [0002] Since the synthetic fiber was successfully developed by DuPont in 1928, it has been favored by people because of its excellent properties that most natural fibers cannot match, such as strength, good dimensional stability, and mildew resistance. After years of rapid development, synthetic fibers have become an important textile material, among which polyester fiber is the main type of synthetic fiber. In 2020, polyester accounted for 82% of synthetic fiber. [0003] Polyester fiber was also mainly used in the field of clothing in the early days, and it is famous for its iron-free and durable. With the deepening of basic research on polyester fiber and the continuous improvement of technology, the production cost o...

Claims

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Application Information

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IPC IPC(8): D01D1/02D01D1/10D01F6/92D01F1/10
CPCD01D1/02D01D1/10D01F6/92D01F1/106
Inventor 王春燕邱中南庄维峰薛淋燕姚新华
Owner TONGKUN GRP ZHEJIANG HENGTONG CHEM FIBER
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