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Dyed flame-retardant cotton fabric and one-bath one-step processing method thereof

A processing method and flame-retardant cotton technology, applied in the field of textile dyeing and finishing, can solve the problems of formaldehyde release, high production and processing costs, high water and energy consumption of flame-retardant cotton fabrics, and achieve low processing costs, good flame-retardant durability, High color fastness to washing effect

Pending Publication Date: 2022-02-08
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of dyed flame-retardant cotton fabric and its one-bath one-step processing method to solve the existing problems: the process of dyeing first and then flame-retardant is long, the consumption of water and energy is high, the pressure of sewage discharge is high, and the production and processing High cost; flame retardant cotton fabric has formaldehyde release problem

Method used

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  • Dyed flame-retardant cotton fabric and one-bath one-step processing method thereof
  • Dyed flame-retardant cotton fabric and one-bath one-step processing method thereof
  • Dyed flame-retardant cotton fabric and one-bath one-step processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Prepare a one-bath dyeing flame retardant finishing solution

[0044] Water-soluble ammonium polyphosphate, reactive yellow P-4G (molecular formula such as figure 1 , a kind of phosphonic acid-based reactive dye), urea, and dicyandiamide were added to water, heated and stirred to dissolve, and 300 g of 11% water-soluble ammonium polyphosphate, 3% reactive yellow P-4G, and 3% urea were prepared , 5% dicyandiamide dyeing flame retardant finishing solution.

[0045] (2) Cotton fabric dyeing and flame retardant one-step processing

[0046] Soak 50 g of cotton fabric in the above finishing solution at 50 o C was treated for 30 minutes, taken out, dipped twice and rolled twice, and the excess rolling rate was controlled to be about 150%. o C, baked for 5 min, washed with water, and dried to obtain dyed flame-retardant cotton fabric.

[0047] Here, the two-dipping and two-rolling referred to here are conventional techniques in this field, which is specifically embodie...

Embodiment 2

[0052] (1) Prepare a one-bath dyeing flame retardant finishing solution

[0053] Add water-soluble ammonium polyphosphate, active yellow P-4G, urea, and dicyandiamide to water respectively, heat and stir to dissolve, and prepare 400 g containing 15% water-soluble ammonium polyphosphate, 0.5% active yellow P-4G, and 3% urea , 5% dicyandiamide dyeing flame retardant finishing solution.

[0054] (2) Cotton fabric dyeing and flame retardant one-step processing

[0055] Soak 50 g of cotton fabric in the above finishing solution at 60 o C was treated for 20 min, taken out, dipped twice and rolled twice, and the excess rolling rate was controlled to be about 110%, at 175 o C, baked for 5 min, washed with water, and dried to obtain dyed flame-retardant cotton fabric.

[0056] The K / S value of the dyed flame-retardant cotton fabric is 5.42, the limiting oxygen index value is 35.9%, and it is self-extinguishing when it leaves the fire during the vertical burning test. After washing ...

Embodiment 3

[0058] (1) Prepare a one-bath dyeing flame retardant finishing solution

[0059] Water-soluble ammonium polyphosphate, active navy blue P-3GD (molecular formula such as figure 1 , a kind of phosphonic acid-based reactive dye), urea, and dicyandiamide were added to water, heated and stirred to dissolve, and 750 g of 10% water-soluble ammonium polyphosphate, 0.5% active navy blue P-3GD, and 1% urea were prepared , 3% dicyandiamide dyeing flame retardant finishing solution.

[0060] (2) Cotton fabric dyeing and flame retardant one-step processing

[0061] Soak 50 g of cotton fabric in the above finishing solution at 70 o C was treated for 10 minutes, taken out, dipped twice and rolled twice, and the excess rolling rate was controlled to be about 120%. o C, baked for 4 minutes, washed with water, and dried to obtain dyed flame-retardant cotton fabrics.

[0062] The K / S value of the dyed flame-retardant cotton fabric is 5.27, 5.06 after washing 20 times, and 4.91 after washing...

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Abstract

The invention discloses a dyed flame-retardant cotton fabric and a one-bath one-step processing method thereof, and relates to the technical field of textile dyeing and finishing. The one-bath dyeing flame-retardant finishing liquid is prepared from phosphonic acid-based reactive dye, water-soluble ammonium polyphosphate, urea and dicyandiamide, and the cotton fabric is subjected to dyeing flame-retardant one-step processing through a padding-baking method. The selected flame retardant is water-soluble ammonium polyphosphate which is low in price, formaldehyde is not released in the using process, and the processing cost is low. The phosphonic acid-based reactive dye and the water-soluble ammonium polyphosphate can chemically react with the cotton fabric in the finishing process, the prepared dyed flame-retardant cotton fabric is high in color fastness to washing, good in flame retardance and durability and environmentally friendly, and the one-bath one-step processing method is short in technological process, energy-saving, emission-reducing and consumption-reducing, high in technological suitability and wide in application prospect.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, in particular to a dyed flame-retardant cotton fabric and a one-bath-one-step processing method thereof. Background technique [0002] Cotton fabric has the characteristics of excellent moisture absorption, breathability, softness and comfort, and natural skin-friendly properties, and is widely used in the fields of clothing, home textiles, and automotive interiors. Cotton fabric dyeing can endow it with different colors, styles and forms of expression, catering to people's aesthetic taste. In addition, cotton fabrics are flammable fabrics with a limiting oxygen index value of only about 18%. They are easily ignited in the air and can easily cause fires, causing property losses and casualties, thus limiting their application fields. [0003] Cotton fabric dyeing can be carried out by exhaust dyeing or pad dyeing with direct, reactive, vat dyes, etc. The direct dyeing method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/642D06P1/649D06P1/673D06P3/66
CPCD06P1/38D06P1/67366D06P1/6491D06P1/6421D06P3/66
Inventor 王鹏肖航安虹屹茅涛涂江勾婷婷
Owner SOUTHWEST UNIV
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