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A vapor-permeable flame-retardant anti-soaking fabric and its preparation method

A fabric and vapor-permeable technology, applied in chemical instruments and methods, fireproof coatings, polyurea/polyurethane coatings, etc., can solve problems such as large hydrostatic pressure drop, difficult processing, and meeting expected requirements

Active Publication Date: 2019-07-19
ZHONGSHAN BREATHTEX SPECIALITY MATERIAL CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Clothing fabrics with a single function are relatively easy to realize, but when multiple indicators are integrated, due to the mutual constraints between indicators, processing is difficult, and it is often difficult to meet the expected requirements at the same time
[0003] In order to meet the indicators of flame retardancy, moisture permeability, anti-aging, and water immersion resistance, the existing methods all adopt the method of coating, that is, a method of coating a flame-retardant coating glue on a fiber fabric to realize Flame retardant, moisture permeability, and water immersion resistance indicators, but due to the influence of flame retardant additives, the finished fabrics often suffer from damp heat aging, alkali boiling aging, and hydrostatic pressure drop after washing, which is difficult to meet the anti-aging index requirements.

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 vapor-permeable flame-retardant anti-soaking fabric and its preparation method
  • A vapor-permeable flame-retardant anti-soaking fabric and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] (1) Fabric selection: the outer fabric is aramid plain weave fabric 40 S / 2*40 S / 2 / 248*216, the inner fabric is aramid knitted mesh (yarn count 40S, weight 30g / m 2 ).

[0109] (2) The material of the intermediate film is polytetrafluoroethylene / polyurethane composite film (thickness 30μm, weight 35g / m 2 ).

[0110] (3) Water-repellent finishing of the outer fabric: use fluorine-based waterproofing agent (TX-15) for padding finishing, temperature is 160°C, time is 1min, drying, water-staining grade ≥ 4;

[0111] (4) Calender the outer fabric after the water-repellent finishing with a calender at a pressure of 10 MPa, a temperature of 110° C., and a speed of 20 m / min.

[0112] (5) Coating glue preparation, raw material weight ratio:

[0113] Reactive polyurethane resin D-ACE 2345: 100 parts

[0114] Butanone: 10 parts

[0115] Toluene: 15 parts

[0116] Isocyanate crosslinking agent D-ACE 555: 2.0 parts

[0117] Cross-linking accelerator D-ACE 900: 1.2 parts

...

Embodiment 2

[0125] (1) Fabric selection: the outer fabric is aramid plain weave fabric 40 S / 2*40 S / 2 / 248*216, the inner fabric is aramid knitted mesh (yarn count 40S, weight 30g / m 2 ).

[0126] (2) The material of the intermediate film is polytetrafluoroethylene / polyurethane composite film (thickness 30μm, weight 35g / m 2 ).

[0127] (3) Water-repellent finishing is carried out on the outer fabric, and the water-staining grade is ≥4.

[0128] (4) Calender the outer fabric after the water-repellent finishing with a calender, the pressure is 11Mpa, the temperature is 110°C, and the vehicle speed is 25m / min.

[0129] (5) Coating glue preparation, raw material weight ratio:

[0130] Reactive polyurethane resin D-ACE 2345: 100 parts

[0131] Butanone: 5 parts

[0132] Toluene: 20 parts

[0133] Isocyanate crosslinking agent D-ACE 555: 2.5 parts

[0134] Cross-linking accelerator D-ACE 900: 1.5 parts

[0135] Melamine crosslinking agent D-ACE557: 0.3 parts

[0136] Add butanone and ...

Embodiment 3

[0142] (1) Fabric selection: the outer fabric is aramid plain weave fabric 40 S / 2*40 S / 2 / 248*216, the inner fabric is aramid knitted mesh (yarn count 40S, weight 30g / m 2 ).

[0143] (2) The material of the intermediate film is polytetrafluoroethylene / polyurethane composite film (thickness 30μm, weight 35g / m 2 ).

[0144] (3) Water-repellent finishing is carried out on the outer fabric, and the water-staining grade is ≥4.

[0145] (4) Calender the outer fabric after water-repellent finishing with a calender, the pressure is 11Mpa, the temperature is 120°C, and the vehicle speed is 30m / min;

[0146] (5) Coating glue preparation, raw material weight ratio:

[0147] Reactive polyurethane resin D-ACE 2345: 100 parts

[0148] Butanone: 8 parts

[0149] Toluene: 17 parts

[0150] Isocyanate crosslinking agent D-ACE 555: 3.0 parts

[0151] Cross-linking accelerator D-ACE 900: 1.8 parts

[0152] Melamine crosslinking agent D-ACE557: 0.5 parts

[0153] Add butanone and tolu...

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 discloses a vapor-penetrating type flame-retardant anti-impregnating fabric and a preparation method thereof. The preparation method of the vapor-penetrating type flame-retardant anti-impregnating fabric comprises the following steps of (1) coating a coating adhesive onto an outer fabric which is subjected to water repellent finishing and calendering, so as to obtain a windproof finishing fabric; (2) performing adhesive point compounding on the coating adhesive coated surface of the windproof finishing fabric and a PTFE (polytetrafluoroethylene) / polyurethane composite film; (3) performing adhesive point compounding on the surface of the polytetrafluoroethylene / polyurethane composite film of the fabric obtained in step (2) and an inner fabric, so as to obtain the vapor-penetrating type flame-retardant anti-impregnating fabric. The preparation method has the advantages that the problem of interlayer stripping of a middle double-component PTFE film material of the anti-water impregnating fabric under the action of wind in the environment is solved; the comprehensive indexes of the fabric, such as static water pressure, water vapor transmission amount, flame-retardant property and anti-aging property, can meet the requirements of fabrics of working clothes in the special industry.

Description

technical field [0001] The invention relates to a vapor-permeable flame-retardant anti-soaking fabric and a preparation method thereof, belonging to the field of textile processing. Background technique [0002] With the improvement of people's living standards and the development and progress of society, more and more functional fabrics are used in people's daily life and work, especially in special industry tooling fabrics and outdoor sports fabrics. higher. Clothing fabrics with a single function are relatively easy to realize, but when multiple indicators are integrated, due to the mutual constraints between indicators, processing is difficult, and it is often difficult to meet the expected requirements at the same time. [0003] In order to meet the indicators of flame retardancy, moisture permeability, anti-aging, water immersion resistance, etc., the existing methods all adopt the method of coating, that is, a method of coating a flame-retardant coating glue on a fib...

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): C09D175/04C09D5/18C09D7/63B32B5/02B32B7/12B32B27/06B32B27/12B32B27/32
CPCB32B5/02B32B7/12B32B27/06B32B27/12B32B27/322B32B2307/3065C08K5/29C08K5/34922C08L2201/02C09D5/18C09D7/63C09D175/04
Inventor 郝新敏杨文会张迎春栾殿臣葛川陈晓赵鹏程
Owner ZHONGSHAN BREATHTEX SPECIALITY MATERIAL CO LTD
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