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A kind of preparation method of hot and humid comfortable fabric

A comfortable and fabric technology, applied in the field of preparation of heat-moisture comfortable fabrics, can solve the problems of increased friction of cellulose fibers, easy to fail, limited efficiency, etc., and achieve the effects of simple process, excellent comprehensive performance and low cost

Active Publication Date: 2020-11-06
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 moisture-absorbing to achieve the heat and humidity comfort of the fabric. Hydrophobic finishing is performed, but the efficiency is still limited
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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  • A kind of preparation method of hot and humid comfortable fabric
  • A kind of preparation method of hot and humid comfortable fabric
  • A kind of preparation method of hot and humid comfortable fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A preparation method of a heat-moisture comfortable fabric, the steps are as follows:

[0049] (1) Preparation of PET-PA6 copolymer:

[0050] After mixing PET with a number-average molecular weight of 2,000 and PA6 with a number-average molecular weight of 2,000 in a mass ratio of 1:1, the polycondensation reaction was carried out for 40 minutes at a temperature of 273° C. and a vacuum degree of 46.9 Pa;

[0051] (2) Preparation of special-shaped fibers:

[0052] According to the FDY process, the mass ratio of 55:45 PET melt (intrinsic viscosity of 0.58dL / g) and PA6 melt (intrinsic viscosity of 2.3dL / g) was dispensed from the spinneret holes on the same spinneret. After extruding the FDY filaments, relaxation heat treatment is performed to obtain special-shaped fibers; wherein, the PET melt and the PA6 melt each contain 5wt% of the PET-PA6 copolymer melt;

[0053] like Figure 8 As shown, the spinneret holes on the spinneret are shaped spinneret, The shape is com...

Embodiment 2

[0065] A preparation method of a heat-moisture comfortable fabric, the steps are as follows:

[0066] (1) Preparation of PET-PA6 copolymer:

[0067] After mixing PET with a number-average molecular weight of 2,600 and PA6 with a number-average molecular weight of 3,000 in a mass ratio of 1:1, the polycondensation reaction was carried out for 42 minutes at a temperature of 273 ° C and a vacuum of 47 Pa;

[0068] (2) Preparation of special-shaped fibers:

[0069] According to the FDY process, the mass ratio of 55:45 PET melt (intrinsic viscosity of 0.59dL / g) and PA6 melt (intrinsic viscosity of 2.4dL / g) was dispensed from the spinneret holes on the same spinneret. After extruding the FDY filaments, relaxation heat treatment is performed to obtain special-shaped fibers; wherein, the PET melt and the PA6 melt each contain 5wt% of the PET-PA6 copolymer melt;

[0070] The spinneret is shaped spinneret, The shape is composed of a horizontal line and vertical lines I and II vert...

Embodiment 3

[0082] A preparation method of a heat-moisture comfortable fabric, the steps are as follows:

[0083] (1) Preparation of PET-PA6 copolymer:

[0084] After mixing PET with a number-average molecular weight of 2200 and PA6 with a number-average molecular weight of 3000 at a mass ratio of 1:1, the polycondensation reaction was carried out for 51 min under the conditions of a temperature of 277° C. and a vacuum degree of 47.9 Pa;

[0085] (2) Preparation of special-shaped fibers:

[0086] According to the FDY process, PET melt (intrinsic viscosity: 0.62dL / g) and PA6 melt (intrinsic viscosity: 2.31dL / g) in a mass ratio of 60:40 were dispensed from the spinneret holes on the same spinneret. After extruding the FDY filaments, relaxation heat treatment is performed to obtain special-shaped fibers; wherein, the PET melt and the PA6 melt each contain 5wt% of the PET-PA6 copolymer melt;

[0087] The spinneret is shaped spinneret, The shape is composed of horizontal lines and vertic...

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 warming and wetting comfortable fabric. The preparation method comprises the following steps of taking viscose fibers as surface yarn raw materials,taking special-shaped fibers and viscose fibers as intermediate yarn raw materials, taking cross-shaped PET fibers and viscose fibers as ground yarn raw materials, carrying out three-yarn plaiting weaving, and finishing to obtain the warming and wetting comfortable fabric. The preparation process of the special-shaped fiber is that after a PET melt and a PA6 melt are distributed according to an FDY process, an FDY yarn is prepared by extrusion from spinneret holes in the same spinneret plate, and then relaxation heat treatment is carried out to obtain the special-shaped fiber; each spinneret hole is a spinneret hole with the shape as shown in the speciation, and the shape is composed of a horizontal line and a vertical line I and a vertical line II connected vertically with the horizontalline; and the distribution refers to controlling the PET melt to flow through the horizontal line while controlling the PA6 melt to flow through the vertical line I and the vertical line II. Accordingto the preparation method disclosed by the invention, a simple preparation method is adopted to prepare the fiber with the twisted morphology which is beneficial to moisture export, so that the warming and wetting comfortable fabric is prepared.

Description

technical field [0001] The invention belongs to the technical field of fibers, and relates to a preparation method of a heat-moisture comfortable fabric. Background technique [0002] Traditional knitted fabrics are generally made of 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 in the fibers 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 quickly reach the outside, so it cannot evaporate quickly. In addition, the frictional force between the cellulose fibers after water absorption increases, and the stretchability of the fabric decreases during wearing, which will bring about a poor wearing experience. [0003] In the prior art, a double-la...

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): D01D5/253D01D5/30D01D5/22D01D10/02D01F8/12D01F8/14D04B1/16D04B21/00
CPCD01D5/22D01D5/253D01D5/30D01D10/02D01F8/12D01F8/14D04B1/16D04B21/00D10B2201/24D10B2401/022
Inventor 程棋
Owner 深圳市宏翔新材料发展有限公司
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