Preparation method of formaldehyde-free washing-resistant flame-retardant fabric

A flame retardant fabric, washable technology, applied in the direction of flame retardant fibers, plant fibers, animal fibers, etc., can solve problems such as poisoning formaldehyde, and achieve excellent flame retardant performance, excellent washing resistance, and obvious flame retardant effects.

Active Publication Date: 2019-08-27
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such flame retardant products are usually accompanied by the release of toxic formaldehyde during production and use.

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 formaldehyde-free washing-resistant flame-retardant fabric
  • Preparation method of formaldehyde-free washing-resistant flame-retardant fabric
  • Preparation method of formaldehyde-free washing-resistant flame-retardant fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Step 1. Dissolve an aqueous solution of catechin with a mass concentration of 1% at 30°C, immerse the cotton fabric in this solution, stir and heat at 30°C for 3 hours, the bath ratio is 1:10, take out the cotton fabric and dry it at 50°C 3h;

[0037] Step 2, dissolving a chitosan solution with a mass concentration of 1% at 20°C, stirring and heating the cotton fabric in step 1 with 98°C in this solution for 18min, the bath ratio is 1:50, taking out the cotton fabric and using water Rinse for 1min, then dry at 90°C for 0.5h;

[0038] Step 3: Dissolve calcium acetate solution with a mass concentration of 6% at 60°C, stir and heat the cotton fabric treated in step 2 in this solution at 50°C for 60min, the bath ratio is 1:50, take out the cotton fabric and rinse it with water 5min, and then dried at 50°C for 3h to obtain a washable flame-retardant cotton fabric.

Embodiment 2

[0040] Step 1. Dissolve catechin aqueous solution with a mass concentration of 10% at 60°C, immerse the cotton fabric in this solution and stir and heat at 90°C for 1 hour, the bath ratio is 1:20, take out the cotton fabric and dry it at 60°C 1.5h;

[0041] Step 2, dissolving a chitosan solution with a mass concentration of 2% at 60°C, stirring and heating the cotton fabric in step 1 with 75°C in this solution for 45min, the bath ratio is 1:20, taking out the cotton fabric and using water Rinse for 3 minutes, then dry at 60°C for 1.5 hours;

[0042] Step 3. Dissolve a magnesium nitrate solution with a mass concentration of 10% at 25°C. Stir and heat the cotton fabric treated in step 2 in this solution at 90°C for 1 hour, with a bath ratio of 1:20. Take out the cotton fabric and rinse it with water 3min, and then dried at 60°C for 1.5h to obtain a washable flame-retardant cotton fabric.

Embodiment 3

[0044] Step 1, dissolving a chitosan solution with a mass concentration of 7% at 20°C, stirring and heating the cotton fabric at 60°C for 30 minutes in this solution, with a bath ratio of 1:25, taking out the cotton fabric and rinsing it with water for 5 minutes, and then Dry at 70°C for 1.5h;

[0045] Step 2. Dissolve an aqueous catechin solution with a mass concentration of 10% at 50°C, soak the cotton fabric treated in step 1 in this solution and stir and heat at 80°C for 45min, the bath ratio is 1:25, and take out the cotton fabric Dry at 70°C for 1.5h;

[0046] Step 3. Dissolve calcium acetate solution with a mass concentration of 5% at 30°C. Stir and heat the cotton fabric treated in step 2 in this solution at 90°C for 1 hour with a bath ratio of 1:20. Take out the cotton fabric and rinse it with water 3min, and then dried at 60°C for 2h to obtain a washable flame-retardant cotton fabric.

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Abstract

The invention discloses a preparation method of a formaldehyde-free washing-resistant flame-retardant fabric. The preparation method comprises the following steps: (1) soaking and cooking a fabric ina natural polyphenol compound solution, and drying the fabric to obtain a fabric deposited with a natural polyphenol compound; (2) soaking and cooking the fabric deposited with the natural polyphenolcompound in a fixing agent solution, washing the fabric with water and drying the fabric to obtain the fabric immobilized by the natural polyphenol compound; and (3) soaking and cooking the fabric immobilized by the natural polyphenol compound in a metal salt solution, washing the fabric with water, and drying the fabric to obtain the formaldehyde-free washing-resistant flame-retardant fabric. Theflame-retardant fabric provided by the invention has excellent washing-resistant flame-retardant performance, and still shows good flame-retardant performance after the fabric is subjected to 100 times of simulated washing and 100 times of friction tests, the oxygen index of the flame-retardant fabric can reach 30%, the flame-retardant fabric can be self-extinguished in horizontal combustion andvertical combustion experiments, and properties such as the original mechanical property and the hydrophilic property of the fabric can be well maintained.

Description

technical field [0001] The invention belongs to the technical field of fabric dyeing and finishing, and relates to a formaldehyde-free washable flame-retardant fabric and a preparation method thereof. Background technique [0002] Fires are a serious threat to people's property and life safety. Residential fires are relatively frequent and the number of casualties is the largest. A common feature in residential homes is the ubiquity of textiles, including clothing, curtains, carpets, bedding, upholstered furniture, and more. The flammability of textiles is high, and the flame spreads quickly after being ignited, which makes it difficult to control the fire. According to statistics, about 50% of the fire sources in the world are textiles. Therefore, the flame retardant research of textiles is of great significance to prevent fires and reduce the loss of life and property in fires. [0003] Since the development of flame retardant technology in the textile industry, a large ...

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): D06M11/56D06M11/65D06M13/00D06M13/152D06M13/188D06M13/238D06M15/00D06M15/03D06M15/564D06M101/06D06M101/10D06M101/32D06M101/34
CPCD06M11/56D06M11/65D06M13/00D06M13/152D06M13/188D06M13/238D06M15/00D06M15/03D06M15/564D06M2101/06D06M2101/10D06M2101/32D06M2101/34D06M2200/30
Inventor 王玉忠张爱泞赵海波胡再银
Owner SICHUAN UNIV
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