Regenerated cationic dyeable polyester filament and its preparation method

A polyester filament, cationic technology, applied in the direction of rayon manufacturing, single-component polyester rayon, fiber chemical characteristics, etc., can solve the problems of oil resource depletion, environmental pollution, etc., to reduce environmental pollution and slow down energy consumption. Effect of depletion and saving energy loss

Active Publication Date: 2016-03-02
江苏芮邦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its extensive use leads to the accumulation of a large amount of waste polyester and the pollution to the environment, and it is based on petroleum resources, resulting in the depletion of petroleum resources, so its regeneration is a hot spot in current research
[0003] Although the patent CN102505175A has prepared regenerated polyester filaments, its dyeing still needs to be dyed by high temperature and high pressure with disperse dyes

Method used

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  • Regenerated cationic dyeable polyester filament and its preparation method
  • Regenerated cationic dyeable polyester filament and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] in such as figure 1 In the reactor 1 shown in the reaction flow diagram, waste polyester bottle flakes and ethylene glycol are put into the reactor 1 in a molar ratio of 1:1, and antimony trioxide and 50 ppm of Zinc acetate composite catalyst for depolymerization reaction, control the BHET product to be more than 50% until the end of the reaction, control the temperature at 230°C and add monoglycol isophthalate with a mass ratio of 50% of 1% of the total mass of polyester -5-Sodium sulfonate ethylene glycol slurry, add 3wt% adipic acid and 50ppm antioxidant 1010, react for 60 minutes, carry out vacuum polycondensation, polymerize into cationic dyeable recycled polyester, after the polycondensation reaction Pelletize, dry, and spin at 290°C to obtain cationic dyeable recycled polyester filaments.

Embodiment 2

[0029] in such as figure 1 In the reactor 1 shown in the reaction flow chart, the waste polyester material and ethylene glycol are put into the reactor 1 in a molar ratio of 1:3, and ethylene glycol antimony and 50 ppm of acetic acid are put into the polyester waste mass ratio of 500 ppm Zinc composite catalyst for depolymerization reaction, control the BHET product to be more than 90% until the end of the reaction, control the temperature at 250°C and add monoglycol isophthalate-5- Sodium sulfonate ethylene glycol slurry, 7% isophthalic acid and 100ppm antioxidant 168, reacted for 30 minutes, then vacuum polycondensed, polymerized into cationic dyeable recycled polyester melt, cationic dyeable recycled polyester The ester melt is spun at 285° C. in a direct melt spinning equipment to obtain cationic dyeable recycled polyester filaments.

Embodiment 3

[0031] in such as figure 1 In the reactor 1 shown in the reaction flow chart, waste polyester fibers and ethylene glycol are put into the reactor 1 in a molar ratio of 1:6, and n-butyl titanate and 100 ppm of Zinc acetate composite catalyst for depolymerization reaction, control the BHET product to be more than 80% until the reaction is over, control the temperature at 260°C and add monoglycol isophthalate-5 with a concentration of 30% of the total polyester content of 3% -Sodium sulfonate ethylene glycol slurry, 1wt% adipic acid, 3wt% isophthalic acid and 200ppm antioxidant 1010, after reacting for 50 minutes, carry out vacuum condensation polymerization, and polymerize into cationic dyeable recycled polyester melt , The cationic dyeable recycled polyester melt is spun at 280°C in direct melt spinning equipment, and the cationic dyeable recycled polyester filament with a fineness of 76dex / 36f is obtained through a winding speed of 3000m / s.

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Abstract

The invention provides a regeneration base cation colorable polyester filament yarn and a preparation method thereof and belongs to a manufacturing technology of generation chemical fibers. Waste polyesters serve as the raw materials. Ethylene glycol depolymerization craft is used for depolymerizing into terephthalic acid diethylene glycol (BHET) or polyester oligomer. Regeneration base cation colorable polyester can be polymerized and manufactured through adding isophthalic acid-polythylene naphthalate-5-sodium size and regeneration polyester structural modifier in normal position. Then the regeneration base cation colorable polyester filament yarn can be manufactured through spinning components. According to the regeneration base cation colorable polyester filament yarn, fabrics have ordinary-pressure dyeability, dyeing property is excellent, moisture is absorbed, and sweats are released, energy is saved, and environment is protected. The regeneration base cation colorable polyester filament yarn can be used for industrial production.

Description

technical field [0001] The invention relates to a synthetic fiber and a preparation method thereof, in particular to a cationic dyeable polyester filament prepared by using recycled polyester as a base material and a preparation method thereof. Background technique [0002] Polyester is widely used due to its moldability, fiber formation, temperature resistance, corrosion resistance, and excellent physical and chemical properties. Its extensive use causes the accumulation of a large amount of waste polyester and the pollution to the environment, and it is based on petroleum resources, resulting in the depletion of petroleum resources, so its regeneration is a hot spot in current research. [0003] Although the patent CN102505175A has prepared regenerated polyester filaments, its dyeing still needs to be dyed with disperse dyes through high temperature and high pressure. Although we also use the introduction of nano components in the polymerization process of recycled polyes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/688
Inventor 冯淑芹张叶兴梅锋徐新荣林镇勇徐广宇田会双
Owner 江苏芮邦科技有限公司
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