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Method for preparing polyester filament capable being dyed by continuous condensed direct-spinning cation dye

A technology of cationic dyes and polyester filaments, applied in the direction of single-component polyester artificial filaments, melt spinning, etc., to achieve the effect of small deviation, short process and reasonable process

Inactive Publication Date: 2007-11-14
ZHEJIANG CHEM FIBER UNITED GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the products produced in this study only refer to polyester staple fibers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, the preparation of cationic dye dyeable polyester melt: set the production capacity of 7200kg / hr on the existing continuous polyester equipment, purify terephthalic acid, ethylene glycol monomer by the mole of 1: 1.18 than adding to the slurry kettle, and at the same time, 350PPM polycondensation catalyst ethylene glycol antimony was added into the slurry kettle, and the above slurry was continuously and stably transported to the esterification-I reaction kettle, and the esterification-I pressure was controlled to be 0.12MPa, and the temperature was 258.0 ℃, the material level is 50.0%, and the esterification rate is 88.0%, the esterification-I material is sent to the esterification-II, the temperature of the esterification-II is controlled at 255 ℃, the material level is 60.0%, and 1.5mol% of The deployment concentration is 40.0% ethylene glycol ester-5-sodium isophthalate (SIPE), the stabilizer trimethyl phosphate of 300PPM ether inhibitor sodium acetate,...

Embodiment 2

[0022] Embodiment 2: As described in Example 1, the difference is: purified terephthalic acid and ethylene glycol monomer are added to the slurry kettle at a molar ratio of 1: 1.20, and 450PPM of Polycondensation catalyst ethylene glycol antimony, control esterification-I material level 55.0%, record esterification rate 90.2%, control esterification-II temperature 250 ℃, material level 55.0%, continuously add 2.0mol% deployment concentration at the same time 40.0% ethylene glycol isophthalate-5-sodium sulfonate (SIPE), 350PPM ether inhibitor sodium acetate, 150PPM stabilizer trimethyl phosphate, control the residence time for 40 minutes, and then use the prepolymer pump Sent to the polycondensation section, and the cationic dye-dyeable polyester melt is obtained according to the conventional polycondensation process.

Embodiment 3

[0023] Embodiment 3: As described in Example 1, the difference is: purified terephthalic acid and ethylene glycol monomer are added to the slurry kettle at a molar ratio of 1: 1.25, and 500PPM of Polycondensation catalyst ethylene glycol antimony, control esterification-I material level 50.0%, record esterification rate 92.1%, control esterification-II temperature 245 ℃, material level 50.0%, continuously add 2.5mol% deployment concentration at the same time 40.0% ethylene glycol isophthalate-5-sodium sulfonate (SIPE), 400PPM ether inhibitor sodium acetate, 200PPM stabilizer trimethyl phosphate, control the residence time for 30 minutes, and then use the prepolymer pump Sent to the polycondensation section, and the cationic dye-dyeable polyester melt is obtained according to the conventional polycondensation process.

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PUM

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Abstract

A method for making a continuous polycondensation direct spinning cationic dye and tinctable polyester filament, it pertains to chemical art. Refining terephthalic acid and Glycol Monomer are raw materials, also including the preparation continuous polycondensation cationic dye and can-be-stained polyester and direct spinning dye tinctable polyester filament. In the present continuous polyester device, first beat the refining terephthalic acid and Glycol, then add Benzene PTA acid Glycol ester-5-Sodium and Ether-agent and stabilizer to get cationic dye tinctable polycondensation melt, then through pipeline, after measure, extrude, draw, wind to obtain cationic dye tinctable polyester pre-orientation silk or cationic dye can-be-stained polyester all-orientation silk. The invention has a short and less process, reasonable art. The quality of product is stable. And the fiber gained has high intensity, small deviation, and is dyed well-distributed, and has a better spinning quality. It can decrease production cost.

Description

technical field [0001] The invention relates to a preparation method of continuous polycondensation direct spinning cationic dye-dyeable polyester filament, which belongs to the technical field of chemical fiber manufacture. Background technique [0002] As we all know, polyester (polyester) fiber has obtained rapid development in the world due to its excellent physical and mechanical properties and good comprehensive wear performance. However, due to the tight aggregation of polyester molecular chains, high crystallinity and orientation, and low polarity, there is no gap between polyester long chain molecules that can properly accommodate dye molecules, so dye particles are not easy to penetrate into fibers, and its dyeing performance Poor, there are few types of dyes that can be used. Generally, polyester fibers can only be dyed with disperse dyes at high temperature, high pressure and high temperature carrier. Cationic dyeable polyester fiber has the characteristics of g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/62C08G63/183D01D5/08
Inventor 王秀华余辉姚强高建良卢刚许锦华
Owner ZHEJIANG CHEM FIBER UNITED GROUP
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