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Polyester silk-like silk and preparation method thereof

A technology imitating silk and polyester, applied in the field of modified polyester fiber, which can solve the problems of lack of active groups and fineness of superfine fiber

Active Publication Date: 2020-07-07
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although superfine fibers have the incomparable advantages of ordinary synthetic fibers, because polyester molecules do not contain hydrophilic groups and are hydrophobic fibers, polyester molecular structures lack similar cellulose or protein fibers that can combine with dyes. Active groups, and because of the fineness of ultrafine fibers, there are also some problems in the dyeing and finishing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] A kind of preparation method of polyester imitation silk silk, concrete steps are as follows:

[0069] (1) prepare modified polyester;

[0070] (1.1) Preparation of heterogeneous solid acid-base SiO 2 -Al 2 o 3 ;

[0071] Formulated SiO 2 For a sodium silicate solution with a content of 12wt%, add polyethylene glycol 6000, a solution dispersant that is 4% by weight of the sodium silicate solution, stir until dissolved at 45°C, and add a sulfuric acid solution with a concentration of 12wt% dropwise at a uniform speed to The pH value of the solution is 10. After aging for 1.0 h, continue to add sulfuric acid solution drop by drop until the pH value is 8. After heating up to 95°C, age for 2 h; wash with water to remove SO 4 2- Suction filtration, washing with absolute ethanol several times, drying in a drying oven at 80°C, and grinding to obtain the product silica powder;

[0072] Weigh 1 part by weight of silica powder and add 55 parts by weight of water, stir and ...

Embodiment 2

[0092] A kind of preparation method of polyester imitation silk silk, concrete steps are as follows:

[0093] (1) prepare modified polyester;

[0094] (1.1) Preparation of 2-tert-butyl-1,6-hexanedicarboxylic acid: firstly mix tungstic acid and hydrogen peroxide, stir at room temperature for 10 minutes, then add 2-tert-butylcyclohexanol and firstly mix at 80°C React for 1 hour, then raise the temperature to 94°C and react for 2 hours. During the reaction, the reactants are always in a reflux state, and finally undergo cooling crystallization, washing and refining. The ratio is 1:35:120;

[0095] (1.2) Preparation of heterogeneous solid acid-base SiO 2 -MgO;

[0096] Formulated SiO 2 For a sodium silicate solution with a content of 10 wt%, add a solution dispersant polyethylene glycol 6000 which is 3% by weight of the sodium silicate solution, stir until dissolved at 40°C, and add a sulfuric acid solution with a concentration of 10 wt% dropwise at a uniform speed to The pH ...

Embodiment 3

[0107] A kind of preparation method of polyester imitation silk silk, concrete steps are as follows:

[0108] (1) prepare modified polyester;

[0109] (1.1) Preparation of 2-tert-butyl-1,6-hexanedicarboxylic acid: firstly mix tungstic acid and hydrogen peroxide, stir at room temperature for 12 minutes, then add 2-tert-butylcyclohexanol and firstly mix at 83°C React for 1.5 hours, then raise the temperature to 90°C and react for 2 hours. During the reaction, the reactants are always in a reflux state, and finally carry out cooling crystallization, washing and refining. The molar ratio is 1:33:120;

[0110] (1.2) Preparation of heterogeneous solid acid-base SiO 2 -Al 2 o 3 ;

[0111] Formulated SiO 2 For a sodium silicate solution with a content of 10 wt%, add a solution dispersant polyethylene glycol 6000 which is 3% by weight of the sodium silicate solution, stir until dissolved at 40°C, and add a sulfuric acid solution with a concentration of 10 wt% dropwise at a unifor...

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Abstract

The invention relates to polyester silk imitation yarn and a preparation method thereof. Pre-oriented yarn (POY) fiber and fully drawn yarn (FDY) fiber are doubled, wound and compounded to prepare thepolyester silk imitation yarn, the POY fiber and the FDY fiber are both triangle profile polyester fine denier fiber and take modified polyester as main raw materials, a molecular chain of the modified polyester comprises a terephthalic acid chain segment, an ethylene glycol chain segment and a binary acid chain segment with a tert-butyl pendant group, binary acid with the tert-butyl pendant group is 5-tert-butyl-1,3-phthalic acid, 2-tert-butyl-1,6-adipic acid, 3-tert-butyl-1,6-adipic acid, or 2,5-di-tert-butyl-1,6-adipic acid, multiphase solid acid and alkali powder SiO2-Al2O3 and / or SiO2-MgO subjected to high-temperature roasting is dispersed in the modified polyester, and the dye-uptake rate, the K / S value, the color fastness and the natural degradation efficiency of the polyester silk-imitation yarn are high. The preparation method is simple in technology, and the prepared polyester silk imitation yarn is excellent in dyeing performance and easy to degrade and recycle.

Description

technical field [0001] The invention belongs to the technical field of modified polyester fibers, and relates to a polyester silk-like silk and a preparation method thereof. Background technique [0002] Since its invention, polyester fiber has achieved rapid development because of its luster, strength and elasticity comparable to silk and good alkali resistance. It is an ideal textile material today. With the expansion of the scale of polyester production, its production technology has also been greatly improved. From the initial production of conventional products, it gradually develops towards high-tech, functional, imitation natural fiber and other production directions. The application of polyester fiber The field has also gradually developed from the initial clothing fiber to decoration, industry and other fields. With the continuous improvement and perfection of fiber production technology, it is an inevitable trend for the development of chemical fiber to increase t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/86C08G63/183D01D5/253D01D5/098
Inventor 范红卫王山水王丽丽
Owner JIANGSU HENGLI CHEM FIBER
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