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Moisture absorbing and sweat releasing polyester fibers and preparation method thereof

A technology of moisture absorption and perspiration, polyester fiber, applied in the field of fiber, can solve the problem of slow natural degradation rate, etc., to achieve the effect of improving the degradation rate and the conduction rate

Active Publication Date: 2019-03-22
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect of slow natural degradation rate of moisture-absorbing and sweat-wicking polyester fiber in the prior art, and provide a moisture-absorbing and sweat-wicking polyester fiber with fast natural degradation rate and its preparation method

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A method for preparing moisture-absorbing and sweat-wicking polyester fibers, the steps are as follows:

[0043] (1) Preparation of doped modified ZrO 2 Powder;

[0044] (1.1) Mg(NO 3 ) 2 Aqueous solution with concentration of 22wt% ZrO 2 The solution is mixed evenly, ZrO 2 The solvent of the solution is nitric acid, the Mg in the mixture 2+ with Zr 4+ The mol ratio is 6:100;

[0045] (1.2) Add dropwise ammonia water with a concentration of 2 mol / L until the pH value of the mixed solution is 9 to obtain a precipitated product, wash and dry the precipitated product, the drying temperature is 108° C., and the drying time is 2.5 hours;

[0046] (1.3) Heat the dried product to 400°C and keep it warm for 2.5h, then heat it up to 700°C and keep it warm for 1.5h, and finally cool it in air and pulverize it to obtain doped modified ZrO with a particle size of 0.4 microns 2 Powder;

[0047] (2) Esterification reaction;

[0048] Make a slurry of terephthalic acid and et...

Embodiment 2

[0058] A method for preparing moisture-absorbing and sweat-wicking polyester fibers, the steps are as follows:

[0059] (1) Preparation of doped modified ZrO 2 Powder;

[0060] (1.1) LiNO with a concentration of 1wt% 3 Aqueous solution with concentration of 20wt% ZrO 2 The solution is mixed evenly, ZrO 2 The solvent of the solution is nitric acid, Li in the mixture + with Zr 4+ The molar ratio is 5:100;

[0061] (1.2) Add dropwise ammonia water with a concentration of 2 mol / L until the pH value of the mixed solution is 10 to obtain a precipitated product, wash and dry the precipitated product, the drying temperature is 105° C., and the drying time is 3 hours;

[0062] (1.3) Heat the dried product to 400°C and keep it warm for 2h, then heat it up to 700°C and keep it warm for 1h, and finally cool it in air and pulverize it to obtain doped modified ZrO with a particle size of 0.4 microns 2 Powder;

[0063] (2) Esterification reaction;

[0064] Make a slurry of terephthali...

Embodiment 3

[0072] A method for preparing moisture-absorbing and sweat-wicking polyester fibers, the steps are as follows:

[0073] (1) Preparation of doped modified ZrO 2 Powder;

[0074] (1.1) Zn(NO 3 ) 2 Aqueous solution with concentration of 25wt% ZrO 2 The solution is mixed evenly, ZrO 2 The solvent of the solution is nitric acid, Zn in the mixture 2+ with Zr 4+ The molar ratio is 8:100;

[0075] (1.2) Add dropwise ammonia water with a concentration of 2 mol / L until the pH value of the mixed solution is 10 to obtain a precipitated product, wash and dry the precipitated product, the drying temperature is 110° C., and the drying time is 2 hours;

[0076] (1.3) Heat the dried product to 400°C and keep it warm for 3 hours, then heat it up to 700°C and keep it warm for 2 hours, and finally cool it in air and pulverize it to obtain doped modified ZrO with a particle size of 0.4 microns 2 Powder;

[0077] (2) Esterification reaction;

[0078] Make a slurry of terephthalic acid and...

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Abstract

The invention relates to moisture absorbing and sweat releasing polyester fibers and a preparation method thereof. The preparation method comprises the following step: preparing polyester FDY yarns from a polyester melt according to a FDY process by using a cross-shaped spinneret plate to obtain the moisture absorbing and sweat releasing polyester fibers, wherein doped and modified ZrO powder is dispersed in the polyester melt. The doping and modifying process comprises the following steps: first, mixing a solution containing metal ions Mx<+> and a solution containing Zr4<+> uniformly; then dropwise adding a precipitator till the pH value of the solution is 9-10; and finally, calcining the precipitated product, wherein the metal ions Mx<+> are more than one of Mg2<+>, Li<+> and Zn2<+>. Thecross sections of the prepared moisture absorbing and sweat releasing polyester fibers are cross-shaped. The intrinsic viscosity of the moisture absorbing and sweat releasing polyester fibers is reduced by 10-16% if being placed for 60 months under the condition that the temperature of the moisture absorbing and sweat releasing polyester fibers is 25 DEG C and the relative humidity is 65%. The preparation method is simple in process and low in price. The prepared product is high in natural degrading speed, excellent in mechanical property and moisture absorbing and sweat releasing property, and has a good application prospect.

Description

technical field [0001] The invention belongs to the field of fiber technology, and relates to a moisture-absorbing and sweat-wicking polyester fiber and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, the comfort, health, safety and environmental protection of clothing fabrics have gradually become the key factors for consumers to choose clothing. As people's demand for outdoor activities increases, sports and leisure clothing has gradually become the mainstream category in the market and is becoming more and more popular among consumers. Comfort is an important evaluation index for casual sportswear. It not only requires the softness and fit of clothing fabrics, but also puts forward higher requirements for the moisture absorption and perspiration performance of clothing fabrics. In the case of clothing, the clothing will not stick to the skin and produce a clammy feeling. There are also many kinds of moisture...

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 Applications(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/183C08G63/78
CPCC08G63/183C08G63/78D01F1/10D01F6/92
Inventor 汤方明王永锋熊克
Owner JIANGSU HENGLI CHEM FIBER
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