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Preparation method of moisture absorption and quick drying fabric

A hygroscopic and quick-drying fabric technology, applied in the field of fibers, can solve the problems of unsustainable overall hydrophobic effect, limited efficiency, and large moisture migration resistance.

Inactive Publication Date: 2020-04-21
深圳市宏翔新材料发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional knitted fabrics are generally woven with cotton or cotton mixed with other cellulose fibers. Cellulose fibers have good hygroscopicity. When the human body sweats a lot, it can quickly absorb the moisture on the surface of the human body, but the moisture that enters the fiber It is difficult to evaporate, because the hydrophilicity of cellulose fibers is too strong, and the migration resistance of water in the fibers is relatively large. After the side close to the skin absorbs water, it cannot reach the outside quickly, so it cannot evaporate quickly.
In addition, the friction between the cellulose fibers after water absorption increases, and the stretchability of the fabric decreases when wearing, which will lead to poor wearing experience.
[0003] In the prior art, the double-layer structure of the inner layer is generally designed to be hydrophobic and the outer layer is hygroscopic to achieve moisture absorption and quick drying of the fabric, especially for the control of the inner layer's hydrophobicity, choose hydrophobic fibers, or based on it. Hydrophobic finishing, but still limited efficiency
The overall effect of hydrophobicity is not long-lasting, and it is easy to fail after repeated friction and washing; the most common method is hydrophobic fibers with special-shaped cross-sections, but the grooves of general special-shaped cross-section fibers are on the same side, and their moisture-conducting efficiency is still low. To be further improved

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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  • Preparation method of moisture absorption and quick drying fabric
  • Preparation method of moisture absorption and quick drying fabric
  • Preparation method of moisture absorption and quick drying fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A method for preparing a moisture-absorbing and quick-drying fabric, the steps are as follows:

[0050] (1) Preparation of PET-PA6 copolymer:

[0051] After mixing PET with a number average molecular weight of 2000 and PA6 with a number average molecular weight of 2000 at a mass ratio of 1:1, polycondensation reaction was carried out for 40 minutes at a temperature of 273 °C and a vacuum of 45.2 Pa to obtain a PET-PA6 copolymer thing;

[0052] (2) Preparation of shaped fibers:

[0053] According to the FDY process, after distributing PET melt (intrinsic viscosity 0.6dL / g) and PA6 melt (intrinsic viscosity 2.4dL / g) with a mass ratio of 55:45, from the spinneret holes on the same spinneret After the FDY filament is obtained by extrusion, relaxation heat treatment is carried out to obtain the shaped fiber; wherein, the PET melt and the PA6 melt each contain 5wt% of the PET-PA6 copolymer melt;

[0054] Such as Figure 8 As shown, the spinneret hole on the spinneret plat...

Embodiment 2

[0066] A method for preparing a moisture-absorbing and quick-drying fabric, the steps are as follows:

[0067] (1) Preparation of PET-PA6 copolymer:

[0068] After mixing PET with a number-average molecular weight of 3000 and PA6 with a number-average molecular weight of 2000 at a mass ratio of 1:1, the polycondensation reaction was carried out at a temperature of 274°C and a vacuum of 45.5Pa for 44 minutes to obtain a PET-PA6 copolymer thing;

[0069] (2) Preparation of shaped fibers:

[0070] According to the FDY process, after distributing PET melt (intrinsic viscosity 0.65dL / g) and PA6 melt (intrinsic viscosity 2.41dL / g) with a mass ratio of 65:35, from the spinneret holes on the same spinneret After the FDY filament is obtained by extrusion, relaxation heat treatment is carried out to obtain the shaped fiber; wherein, the PET melt and the PA6 melt each contain 5wt% of the PET-PA6 copolymer melt;

[0071] The spinneret hole is shaped spinneret hole, The shape is com...

Embodiment 3

[0083] A method for preparing a moisture-absorbing and quick-drying fabric, the steps are as follows:

[0084] (1) Preparation of PET-PA6 copolymer:

[0085] After mixing PET with a number-average molecular weight of 2800 and PA6 with a number-average molecular weight of 2300 at a mass ratio of 1:1, the polycondensation reaction was carried out at a temperature of 277°C and a vacuum of 46.1Pa for 54 minutes to obtain a PET-PA6 copolymer thing;

[0086] (2) Preparation of shaped fibers:

[0087] According to the FDY process, after distributing PET melt (intrinsic viscosity 0.65dL / g) and PA6 melt (intrinsic viscosity 2.46dL / g) with a mass ratio of 55:45, from the spinneret holes on the same spinneret After the FDY filament is obtained by extrusion, relaxation heat treatment is carried out to obtain the shaped fiber; wherein, the PET melt and the PA6 melt each contain 5wt% of the PET-PA6 copolymer melt;

[0088] The spinneret hole is shaped spinneret hole, The shape is com...

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 relates to a preparation method of a moisture absorption and quick drying fabric. Raw materials are cotton fibers and profiled fibers; the process flow comprises looming knitting, presetting, pretreatment, dyeing, softening treatment and scutching setting; the preparation process of the profiled fibers is that according to an FDY process, after PET fondant and PA6 fondant are distributed, extrusion is carried out from spinneret orifices on the same spinneret plate to prepare FDY filaments, and then relaxation thermal treatment is carried out to obtain the profiled fibers; the spinneret orifices are of a shape of (with reference to the specification), and the shape of (with reference to the specification) consists of a transverse line and two vertical lines vertically connected with the transverse line; and distribution means that the PET fondant is controlled to flow through one transverse line, and meanwhile, the PA6 fondant is controlled to flow through two vertical lines. According to the invention, the fibers which are beneficial to moisture export and have a twisted form are prepared by adopting the simple preparation method, so that the moisture absorption and quick drying fabric with higher moisture conductivity is prepared.

Description

technical field [0001] The invention belongs to the field of fiber technology and relates to a method for preparing a moisture-absorbing and quick-drying fabric. Background technique [0002] Traditional knitted fabrics are generally woven with cotton or blended with other cellulose fibers. Cellulose fibers have good hygroscopicity. When the human body sweats a lot, it can quickly absorb the moisture on the surface of the human body, but the moisture that enters the fiber It is difficult to evaporate. The reason is that the hydrophilicity of cellulose fibers is too strong, and the migration resistance of water in the fibers is relatively large. After the side close to the skin absorbs water, it cannot reach the outside quickly, so it cannot evaporate quickly. In addition, the friction between the water-absorbed cellulose fibers increases, and the stretchability of the fabric decreases when wearing, which will lead to a poor wearing experience. [0003] In the prior art, 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): D04B1/00D04B1/14D04B1/16D01D5/253D01D1/09
CPCD01D1/09D01D5/253D04B1/00D04B1/14D04B1/16D10B2201/02D10B2331/02D10B2331/04
Inventor 钟建峰
Owner 深圳市宏翔新材料发展有限公司
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