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Matt eight-leaf polyester fibers and production method thereof

A technology of polyester fiber and production method, applied in the field of matte eight-leaf polyester fiber and its production, can solve the problems of difficult cleaning of the filter element of the melt filter, rare composite function, unfavorable spinning, etc., and achieves moisture absorption. Quick-drying bionic effect, excellent bionic effect, and the effect of improving moisture absorption and moisture conductivity

Active Publication Date: 2015-04-08
ZHEJIANG HENGYI HIGH TECH MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it generally appears with a single function, and compound functions are relatively rare.
[0003] The surface of polyester is reflective and flickering, and titanium dioxide is generally used as a matting agent, but titanium dioxide itself is not only unfavorable to spinning, it is a degradation catalyst for polyester, which will promote the degradation of polyester during spinning, and its condensate will not dissolve in triglycerides. Alcohol, making it difficult to clean the filter element of the melt filter

Method used

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  • Matt eight-leaf polyester fibers and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Beating: First melt and mix PTA20Kg (120.48mol) and EG7.9Kg (127.45mol), and add antimony ethylene glycol as a catalyst. The amount of antimony ethylene glycol is 0.03% of the weight of purified terephthalic acid, and then Send to esterification I kettle;

[0033] (2) In esterification The esterification rate in the kettle reaches more than 70%, and enters the esterification Kettle for continuous esterification reaction, esterification temperature 240 ℃, after the esterification rate reaches 89%, add polyethylene glycol and stabilizer trimethyl phosphate, the molar weight of polyethylene glycol is 0.25% of the molar weight of purified terephthalic acid mol%, the weight of trimethyl phosphate is 0.02% of the weight of purified terephthalic acid, mixed and stirred, and transported to the polycondensation tank;

[0034] (3) Vacuumize, heat up the polycondensation tank, heat up the polycondensation reaction to 270°C, and at the same time polycondensate to the target...

Embodiment 2

[0039] (1) Beating: First melt and mix PTA20Kg (120.48mol) and EG8.0Kg (129.03mol), and add catalyst antimony trioxide, the amount of antimony trioxide is 0.05% of the weight of purified terephthalic acid, and then send to Esterification 1 kettle;

[0040] (2) In esterification The esterification rate in the kettle reaches more than 75%, and enters the esterification Continuous esterification reaction in the kettle, the esterification temperature is 230°C, and after the esterification rate reaches 92%, polyethylene glycol and stabilizer trimethyl phosphate are added, and the molar weight of polyethylene glycol is 0.5% of that of purified terephthalic acid. mol%, the weight of trimethyl phosphate is 0.04% of the weight of purified terephthalic acid, mixed and stirred, and delivered to the polycondensation tank;

[0041] (3) Vacuumize, heat up the polycondensation tank, heat up the polycondensation reaction to 265°C, and at the same time polycondensate to the target viscosity ...

Embodiment 3

[0046] (1) Beating: First melt and mix PTA20Kg (120.48mol) and EG8.2Kg (132.25mol), and add antimony ethylene glycol as a catalyst. The amount of antimony ethylene glycol is 0.07% of the weight of purified terephthalic acid, and then Send to esterification I kettle;

[0047] (2) In esterification The esterification rate in the kettle reaches more than 80%, and enters the esterification The kettle carries out continuous esterification reaction, the esterification temperature is 252°C, and after the esterification rate reaches 94%, polyethylene glycol and stabilizer triphenyl phosphate are added, and the molar weight of polyethylene glycol is 1 mol of the molar weight of purified terephthalic acid %, the weight of trimethyl phosphate is 0.06% of the weight of purified terephthalic acid, mixed and stirred, and delivered to the polycondensation tank;

[0048] (3) Vacuumize, heat up the polycondensation tank, the temperature of the polycondensation reaction is raised to 270°C, ...

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Abstract

The invention relates to the technical field of differential fibers and productions thereof. In order to solve problems of surface reflection and shining of polyester, the present invention provides matte eight-leaf polyester fibers and a production method thereof, wherein a crystallization accelerator is added during polyester condensation polymerization production, and a spinning plate with a eight-leaf-shaped spinning hole cross section is adopted to spin to obtain the matte eight-leaf polyester fibers. According to the present invention, the produced fibers have good matt property without addition of titanium dioxide, and further have characteristics of good moisture absorption and sweat discharging, good dyeability, good bionic property, wide application range, and high product added value.

Description

technical field [0001] The invention relates to the technical field of differential fiber and its production, in particular to a matte eight-lobed polyester fiber and its production method. technical background [0002] Polyester has the characteristics of high strength, good wear resistance, smooth surface, heat setting, stable physical and chemical properties, etc., and is widely used in the field of clothing. As people put forward higher requirements for the comfort and beauty of clothing, on the basis of maintaining the excellent properties of polyester, further improving the properties of polyester fiber such as moisture absorption and perspiration, easy to dye, coolness, anti-ultraviolet, antibacterial, flame retardant and other characteristics are the current polyester fibers. Fiber production plants are striving to pursue the goal. But generally it appears with a single function, and compound functions are relatively rare. [0003] The surface of polyester is refle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/672D01D13/00D01D5/253D01D1/04
Inventor 李龙真缪国华王炳辉康娟
Owner ZHEJIANG HENGYI HIGH TECH MATERIAL
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