Soft moisture-absorbing curly fiber easy to dye and preparation method thereof

A crimped fiber and softening technology is applied in the field of soft, moisture-absorbing and dyeable crimped fibers and their preparation. The invention can solve the problems of low moisture absorption rate, poor dyeability, and poor fiber softness, and achieve easy curling, easy dyeing and low operation difficulty. Effect

Active Publication Date: 2019-06-28
CATHAY R&D CENT CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009] In order to solve the disadvantages of poor softness, low moisture absorption rate, and poor dyeability of the above-mentioned fibers, the present invention provides a soft, hygroscopic and easy-to-dye curly fiber and a preparation method thereof. Moisture absorption, and realize the low-temperature dyeing purpose of fiber acid dyes and disperse dyes

Method used

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  • Soft moisture-absorbing curly fiber easy to dye and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0055] The preparation method of the soft, hygroscopic and easy-to-dye curly fibers of the present embodiment is as follows:

[0056] 1) The polyamide 56 melt and the polyethylene terephthalate melt are merged in the spinning assembly in the spinning box through their respective melt pipes, sprayed out through the eccentric composite spinneret, and cooled. form spun silk;

[0057] Among them, the skin-core component ratio is accurately adjusted by a metering pump, the polyamide 56 content of the skin layer is 20wt%, and the polyethylene terephthalate content of the core layer is 80wt%;

[0058] Wherein, the temperature of the spinning box is 285° C., and the pressure of the spinning assembly of the spinning box is 15 MPa.

[0059] 2) post-processing the above-mentioned as-spun silk to obtain soft, hygroscopic and easy-to-dye curly fibers;

[0060] Among them, the cooling treatment is side blowing cooling, the wind speed of the side blowing is 0.6m / s, the temperature of the s...

Embodiment 2

[0072] The preparation method of the soft, hygroscopic and easy-to-dye curly fibers of the present embodiment is as follows:

[0073] 1) The polyamide 56 melt and the polytrimethylene terephthalate melt are combined in the spinning box through their respective melt pipes, and then sprayed out through the eccentric composite spinneret and cooled to form a primary Silk;

[0074] Among them, the skin-core component ratio is accurately adjusted by a metering pump, the polyamide 56 content of the skin layer is 30wt%, and the polyethylene terephthalate content of the core layer is 70wt%;

[0075] Wherein, the temperature of the spinning box is 290° C., and the pressure of the spinning assembly of the spinning box is 17 MPa.

[0076] 2) post-processing the above-mentioned as-spun silk to obtain soft, hygroscopic and easy-to-dye curly fibers;

[0077] Wherein, the cooling treatment is side blowing cooling, the wind speed of the side blowing is 0.5m / s, the temperature of the side blo...

Embodiment 3

[0083] The preparation method of the soft, hygroscopic and easy-to-dye curly fibers of the present embodiment is as follows:

[0084] 1) The polyamide 56 melt and the polyethylene terephthalate melt are merged in the spinning assembly in the spinning box through their respective melt pipes, sprayed out through the positive core composite spinneret, and cooled. form spun silk;

[0085] Wherein, the skin-core component ratio is accurately adjusted by a metering pump, the polyamide 56 content of the skin layer is 50wt%, and the polyethylene terephthalate content of the core layer is 50wt%;

[0086] Wherein, the temperature of the spinning box is 292° C., and the spinning assembly pressure of the spinning box is 16 MPa.

[0087] 2) post-processing the above-mentioned as-spun silk to obtain soft, hygroscopic and easy-to-dye curly fibers;

[0088] Among them, the cooling treatment is side blowing cooling, the wind speed of the side blowing is 0.8m / s, the temperature of the side bl...

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Abstract

The invention provides a soft moisture-absorbing curly fiber easy to dye and a preparation method thereof. The soft moisture-absorbing curly fiber easy to dye comprises, by mass, 10-50% of polyamide 5X and 50-90% of polyester. By means of the preparation method, the fiber which is easy to dye by acid dyes and disperse dyes at the low temperature can be obtained at a low cost in a simple process.

Description

technical field [0001] The invention relates to fiber technology, in particular to a soft, hygroscopic and easy-to-dye curly fiber and a preparation method thereof, belonging to the field of textile technology. Background technique [0002] Polyester fiber has the advantages of wideness, high strength, high modulus, solvent resistance, heat resistance, fatigue resistance, etc., and is widely used in civil and industrial materials. However, polyester fiber also has some disadvantages as a textile material, mainly because polyester macromolecular chains are closely arranged, crystallinity and orientation are high, and there is a lack of polar groups in its molecular chains, resulting in the softness and hygroscopicity of the prepared fibers. Poor dyeability and dyeability, easy to generate static electricity, the fabric is easy to pilling, and polyester fiber has poor abrasion resistance. [0003] Due to the high crystallinity of polyester and the lack of polar groups in the ...

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): D01F8/12D01F8/14D06P1/16D06P1/39D06P3/85D01D1/04D01D5/088D01D5/12D01D5/34D01D10/02
Inventor 孙朝续徐晓辰秦兵兵刘修才
Owner CATHAY R&D CENT CO LTD
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