A kind of polyester wool-like different shrinkage composite yarn and its preparation method

A technology of different shrinkage and composite yarn, which is applied in the direction of single-component polyester rayon, rayon manufacturing, melt spinning, etc., to achieve the effect of excellent performance

Active Publication Date: 2019-10-15
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem that the prior art cannot be smoothly spun and processed to obtain fibers with good bulkiness and moisture absorption and perspiration performance, and to provide a fiber with good bulkiness and moisture absorption and perspiration performance that can be successfully spun and processed. Polyester wool-like different shrinkage composite yarn and its preparation method

Method used

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  • A kind of polyester wool-like different shrinkage composite yarn and its preparation method
  • A kind of polyester wool-like different shrinkage composite yarn and its preparation method
  • A kind of polyester wool-like different shrinkage composite yarn and its preparation method

Examples

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Effect test

Embodiment 1

[0083] A preparation method of polyester wool-like different shrinkage composite yarn, the specific steps are as follows:

[0084] (1) spinning melt preparation;

[0085] (1.1) Preparation of modified polyester:

[0086] (a) Esterification reaction: terephthalic acid, ethylene glycol and 2-ethyl-2-methyl-1,3-propanediol in a molar ratio of 1:1.2:0.03 are made into a slurry, and antimony trioxide is added , titanium dioxide and triphenyl phosphate are mixed evenly, and the esterification reaction is carried out under pressure in a nitrogen atmosphere. The pressurized pressure is normal pressure, and the temperature of the esterification reaction is 250°C. 90% of the value is the end point of the esterification reaction, wherein the addition of antimony trioxide is 0.01% of the weight of terephthalic acid, the addition of titanium dioxide is 0.20% of the weight of terephthalic acid, and the addition of triphenyl phosphate It is 0.05% of the weight of terephthalic acid, wherein...

Embodiment 2

[0096] A preparation method of polyester wool-like different shrinkage composite yarn, the specific steps are as follows:

[0097] (1) spinning melt preparation;

[0098] (1.1) Preparation of modified polyester:

[0099] (a) Esterification reaction; prepare terephthalic acid, ethylene glycol and 2,2-diethyl-1,3-propanediol in a molar ratio of 1:1.3:0.04 into a slurry, add ethylene glycol antimony, titanium dioxide After mixing evenly with trimethyl phosphate, carry out the esterification reaction under pressure in a nitrogen atmosphere. The pressurized pressure is normal pressure, and the temperature of the esterification reaction is 260°C. 91% is the end point of the esterification reaction, wherein the addition of ethylene glycol antimony is 0.02% of the weight of terephthalic acid, the addition of titanium dioxide is 0.21% of the weight of terephthalic acid, and the addition of trimethyl phosphate is 0.02% of the weight of terephthalic acid. 0.03% by weight of phthalic ac...

Embodiment 3

[0109] A preparation method of polyester wool-like different shrinkage composite yarn, the specific steps are as follows:

[0110] (1) spinning melt preparation;

[0111] (1.1) Preparation of modified polyester:

[0112] (a) Esterification reaction: terephthalic acid, ethylene glycol, and 2-butyl-2-ethyl-1,3-propanediol in a molar ratio of 1:1.4:0.05 are made into a slurry, and antimony acetate and titanium dioxide are added After mixing evenly with trimethyl phosphite, carry out esterification reaction under pressure in a nitrogen atmosphere. 92% is the end point of the esterification reaction, wherein the addition of antimony acetate is 0.03% of the weight of terephthalic acid, the addition of titanium dioxide is 0.23% of the weight of terephthalic acid, and the addition of trimethyl phosphite is 0.03% of the weight of terephthalic acid. 0.01% by weight of phthalic acid, wherein the structural formula of 2-butyl-2-ethyl-1,3-propanediol is as follows:

[0113]

[0114] ...

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Abstract

The invention relates to a polyester wool-like different-shrinkage composite wire and a preparing method thereof. The method comprises the steps of firstly, modified polyester POY and FDY wires are produced separately; then, the POY and FDY wires are compounded to produce the polyester wool-like different-shrinkage composite wire, wherein the chromatic aberration delta E of the produced compositewire is smaller than 0.200. A bunchof POY or FDY wires extruded through the same spinneret plate contain double-cross single wires and trilobal single wires simultaneously, a modified polyestermolecular chain contains a dihydric alcohol chain section with a branch chain, and the structural formula of the dihydric alcohol chain section with the branch chain is shown in the description, wherein R1 and R2 are straight chain alkylidenes of which the number of carbon atoms is 1-3, R3 is an alkyl of which the number of carbon atoms is 1-5, R4 is an alkyl of which the number of carbon atoms is 2-5, and a matt agent in modified polyester is a mixture of amorphous titanium dioxide and amorphous silicon dioxide or calcium carbonate and amorphous silicon dioxide. The preparing method is simple and reasonable, and the prepared composite wire has good fluffy and hygroscopic and sweat releasingperformance.

Description

technical field [0001] The invention belongs to the field of fiber preparation, and relates to a polyester wool-like different shrinkage composite yarn and a preparation method thereof. Background technique [0002] Since its inception, polyethylene terephthalate (PET fiber or polyester fiber) fiber has high breaking strength, high elastic modulus, moderate resilience, excellent heat setting, good heat and light resistance, and acid and alkali resistance. A series of excellent properties such as corrosion resistance are widely used in clothing and home textiles and other fields. [0003] With the development of modern textile technology and the continuous improvement of people's living standards, people put forward higher requirements for the output, performance and quality of chemical fibers used in clothing, decorative and industrial textiles. Therefore, in recent years, researchers have devoted themselves to chemical Research and development of new varieties of fibers to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/253D01D5/098D01D10/02D02G1/02D02J13/00D01F1/10D01F6/92
Inventor 张元华丁竹君张学东沈建根
Owner JIANGSU HENGLI CHEM FIBER
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