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A kind of preparation method of air-permeable and moisture-conducting fabric

A fabric and amino acid technology, applied in the field of fabrics, can solve the problems of poor hygroscopicity, difficulty, easy staining and staining of polyester, and achieve good washability, improved hygroscopicity, and improved moisture absorption and air permeability.

Active Publication Date: 2021-03-26
SHENZHEN ELLASSAY FASHION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since polyester is a hydrophobic fiber, there is a lack of hydrophilic groups in the macromolecules, the molecular chain structure is tight, and the degree of crystallinity and orientation is high, resulting in poor hygroscopicity of polyester, easy to generate static electricity, easy to stain and difficult to dye. Clothing comfort

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A kind of preparation method of air-permeable and moisture-conducting fabric
  • A kind of preparation method of air-permeable and moisture-conducting fabric
  • A kind of preparation method of air-permeable and moisture-conducting fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A method for preparing a breathable and moisture-conducting fabric, specifically comprising the following steps:

[0045] S1, protection reaction of amino group

[0046] Add 200 mol of amino acid 1 and 400 mol of phthalic anhydride 2 into the reaction flask, add the solvent methylene chloride, and heat to reflux for 1.5 hours. After the reaction, remove the solvent by rotary evaporation to obtain the protected amino acid with the structure of formula 3. The yield is 96%; wherein, x in amino acid 1 is 1, and amino acid 1 is aspartic acid;

[0047]

[0048] S2, Esterification precondensation

[0049] Add 100 mol of terephthalic acid 4, 100 mol of protected amino acid 3, 400 mol of ethylene glycol 5 and 0.4 mol of catalyst aluminum acetate into a stainless steel reaction kettle, pass in nitrogen protection, and under a pressure of 0.2 MPa, heat up to 210°C for esterification , the oligomer 7 was obtained;

[0050]

[0051] S3, polycondensation reaction

[0052] The...

Embodiment 2

[0062] A method for preparing a breathable and moisture-conducting fabric, specifically comprising the following steps:

[0063] S1, protection reaction of amino group

[0064] Add 200 mol of amino acid 1 and 300 mol of phthalic anhydride 2 into the reaction flask, add the solvent methylene chloride, heat to reflux for 2 hours, and remove the solvent by rotary evaporation after the reaction, to obtain the protected amino acid with the structure of formula 3. The rate is 98%; wherein, x in amino acid 1 is 2, and amino acid 1 is glutamic acid;

[0065]

[0066] S2, Esterification precondensation

[0067]

[0068] Add 70 mol of terephthalic acid 4, 30 mol of protected amino acid 3, 180 mol of ethylene glycol 5 and 0.3 mol of catalyst aluminum acetate into a stainless steel reaction kettle, pass through nitrogen protection, and heat up to 225°C under a pressure of 0.2 MPa to perform esterification. , the oligomer 7 was obtained;

[0069] S3, polycondensation reaction

[...

Embodiment 3

[0080] A method for preparing a breathable and moisture-conducting fabric, specifically comprising the following steps:

[0081] S1, protection reaction of amino group

[0082] Add 200 mol of amino acid 1 and 440 mol of phthalic anhydride 2 into the reaction flask, add the solvent dichloromethane, heat to reflux for 2 hours, and remove the solvent by rotary evaporation after the reaction to obtain the protected amino acid with the structure of formula 3. The rate is 97%; wherein, x in amino acid 1 is 1, and amino acid 1 is aspartic acid;

[0083]

[0084] S2, Esterification precondensation

[0085] Add 60 mol of terephthalic acid 4, 40 mol of protected amino acid 3, 200 mol of ethylene glycol 5 and 0.25 mol of catalyst aluminum acetate into a stainless steel reaction kettle, pass in nitrogen protection, and under a pressure of 0.2 MPa, heat up to 220°C for esterification , the oligomer 7 was obtained;

[0086]

[0087] S3, polycondensation reaction

[0088] After the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation method of breathable and moisture transferring fabric. The preparation method specifically comprises the following steps: S1, ensuring that amino acid 1 and phthalic anhydride 2 are subjected to amino protection reaction, so as to obtain protected amino acid with a structure as shown in a formula 3; S2, feeding terephthalic acid 4, the protected amino acid 3,glycol 5 and catalyst aluminum acetate into a stainless steel reaction kettle, and performing esterification, so as to obtain a low polymer 7; S3, performing secondary temperature rise after esterification pre-condensation polymerization in the step S2, and continuing condensation reaction, so as to obtain a high polymer 8; S4, putting the high polymer 8 into an acid solution, and performing deprotection reaction, namely removing protecting groups, so as to obtain modified terylene polyester 9; S5, feeding the modified terylene polyester 9, a dispersant, a defoamer and a softening agent into ascrew extruder, performing fused extruding, and then performing melt filtering, liquid phase viscosity increasing, spinneret orifice extruding to form trickles, lateral blowing air cooling, thread line fatliquoring, winding to form terylene high-strength filaments, dyeing and finishing and spinning, so as to obtain the breathable and moisture transferring fabric.

Description

technical field [0001] The invention belongs to the technical field of fabrics, and in particular relates to a preparation method of breathable and moisture-conducting fabrics. Background technique [0002] With the improvement of living standards and the development of science and technology, consumers have higher and higher requirements for clothing. They require comfortable clothing, bright colors and a sense of returning to nature. Natural fiber itself has many advantages, such as strong hygroscopicity of cotton fiber, easy dyeing, comfortable wearing, good alkali resistance, acid resistance and heat resistance, etc., but at the same time, it also has disadvantages. Because cotton fiber contains more hydrophilic groups, it has excellent water absorption capacity. , the water retention capacity is strong, which makes the human body feel uncomfortable, especially when the human body sweats a lot, the cotton fiber will swell after absorbing water, the air permeability will ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92C08G63/685C08G63/78
CPCC08G63/6856C08G63/78D01F6/92
Inventor 不公告发明人
Owner SHENZHEN ELLASSAY FASHION CO LTD
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