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A preparation method of moisture-absorbing and sweat-wicking fiber with double special-shaped cross-section

A special-shaped cross-section, moisture wicking technology, applied in the field of polyester spinning, can solve the problems of high apparent viscosity, increased operating costs, pipeline system blockage, etc., to ensure continuity and safety, reduce production costs, extend The effect of using the cycle

Active Publication Date: 2020-10-02
JIANGSU HENGKE ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, due to the addition of the third component in the CDP melt, its apparent viscosity is relatively large, and the impurities produced in the production process also increase accordingly, causing the pressure of some spinning components and the pressure difference of the filter to rise faster. There are carbonized cokes on the inner wall of the pipeline. These carbonized cokes adhere to the inner wall of the pipeline, which is easy to cause blockage of the pipeline system and is not easy to be removed, which brings great difficulties to the dredging of the pipeline. In addition, in the production of this kind of fiber In the process, the service life of the filter is greatly reduced, generally only one week, while the service life of some other spinning components is generally only 10 days, so it is necessary to clean and replace the spinning components frequently, which will not only increase the operating cost, but also Will affect the continuity and safety of the entire production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A method for preparing moisture-absorbing and sweat-wicking fibers with double shaped cross-sections, the steps are as follows:

[0055] a) preparing a spinning melt;

[0056] (1) transesterification reaction prepares bishydroxyethyl isophthalate-5-sodium sulfonate;

[0057] First, dimethyl isophthalate-5-sodium benzenesulfonate and ethylene glycol with a molar ratio of 10:1 are put into the preparation kettle, and the catalyst Zn(Ac) is added. 2 Carry out the transesterification reaction at 175°C with the anti-ether agent NaAc until the distilled amount of water reaches 90% of the theoretical value, to obtain bishydroxyethyl isophthalate-5-sodium sulfonate, then add ethylene glycol and Phosphoric acid is modulated to obtain the ethylene glycol solution containing 30wt% bishydroxyethyl isophthalate-5-sodium sulfonate, wherein catalyst Zn(Ac) 2 The addition amount is 0.2wt% of the addition amount of dimethyl isophthalate-5-sodium benzenesulfonate, the addition amount o...

Embodiment 2

[0078] A method for preparing moisture-absorbing and sweat-wicking fibers with double shaped cross-sections, the steps are as follows:

[0079] a) preparing a spinning melt;

[0080] (1) transesterification reaction prepares bishydroxyethyl isophthalate-5-sodium sulfonate;

[0081] First, put dimethyl isophthalate-5-sodium benzenesulfonate and ethylene glycol into the preparation kettle with a molar ratio of 11:1, add the catalyst Zn(Ac) 2 Carry out the transesterification reaction at 178 ℃ after the anti-ether agent NaAc until the distilled amount of water reaches 92% of the theoretical value, and obtain bishydroxyethyl isophthalate-5-sodium sulfonate, then add ethylene glycol and Phosphoric acid is modulated to obtain the ethylene glycol solution containing 31wt% bishydroxyethyl isophthalate-5-sodium sulfonate, wherein catalyst Zn(Ac) 2 The addition amount is 0.3wt% of the addition amount of dimethyl isophthalate-5-sodium benzenesulfonate, the addition amount of anti-ether...

Embodiment 3

[0100] A method for preparing moisture-absorbing and sweat-wicking fibers with double shaped cross-sections, the steps are as follows:

[0101] a) preparing a spinning melt;

[0102] (1) transesterification reaction prepares bishydroxyethyl isophthalate-5-sodium sulfonate;

[0103] First, put dimethyl isophthalate-5-sodium benzenesulfonate and ethylene glycol into the preparation kettle with a molar ratio of 12:1, and add the catalyst Zn(Ac) 2 Carry out the transesterification reaction at 179 ℃ after the anti-ether agent NaAc until the distilled amount of water reaches 91% of the theoretical value, and obtain bishydroxyethyl isophthalate-5-sodium sulfonate, then add ethylene glycol and Phosphoric acid is modulated to obtain the ethylene glycol solution containing 32wt% bishydroxyethyl isophthalate-5-sodium sulfonate, wherein catalyst Zn(Ac) 2 The addition amount is 0.25wt% of the addition amount of dimethyl isophthalate-5-sodium benzene sulfonate, the addition amount of anti...

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Abstract

The invention relates to a preparation method of double-deformed-section moisture-absorption sweat-releasing fiber, first, dimethyl isophthalate-5-benzenesulfonate sodium, ethylene glycol, a catalystand an anti-ether agent are mixed for ester exchange reaction, after completion of the reaction, ethylene glycol and phosphoric acid are added for adjusting, terephthalic acid, ethylene glycol, a catalyst, a stabilizer and a flatting agent are mixed for esterification reaction, a product obtained by the adjusting after the ester exchange reaction is added into the reaction system with esterification reaction end point is reached for polycondensation to obtain spinning melt, and finally the double-deformed-section moisture-absorption sweat-releasing fiber is obtained by metering, extrusion, cooling, oiling, stretching, heat setting and winding of the spinning melt. The method reduces the production of impurities in the fiber production process, thereby reducing the pressure rise of a spinning assembly and a filter, prolonging the service life, and ensuring the continuity and safety of the whole production process, and the method has good economic value and popularization value.

Description

technical field [0001] The invention belongs to the field of polyester spinning, and in particular relates to a method for preparing a moisture-absorbing and perspiration-absorbing fiber with a double-shaped cross-section. Background technique [0002] The new function-oriented production concept has rewritten the traditional market positioning of the textile industry and led the textile industry into a new era of high-tech fields. Starting from various aspects such as water, heat, air, skin feeling, safety and comfort, making the created fabrics have the properties of promoting health and refreshing comfort has always been the goal pursued by the textile industry. In recent years, the proportion of functional fabrics in the market has increased year by year. High-tech smart textiles with healthy and functional properties such as antibacterial, deodorant, UV protection, fire prevention, warmth and perspiration, moisture permeability and waterproof will become the future mark...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/688C08G63/78D01D5/253
Inventor 韦开顺苏安银少和张佰明
Owner JIANGSU HENGKE ADVANCED MATERIALS CO LTD
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