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Photochromic cotton fabric and preparation method thereof

A technology of photochromic and cotton fabrics, applied in the direction of mercerizing of indefinite length fabrics, plant fibers, textiles and papermaking, etc., which can solve the problems of repeated usability and poor stability, complex and limited types of photochromic textiles, and achieve cost reduction The effect of low and high fatigue resistance and simple manufacturing process

Active Publication Date: 2020-07-28
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are not many types of photochromic materials that have been discovered so far, and there are many problems such as difficult synthesis, high price, poor reusability and poor stability, and most photochromic fabrics are made by mixing dispersed forms of photochromic materials. Organic components are used to obtain photochromic functions, and the penetration methods of photochromic organic components mainly include dyeing, screen printing, and dyeing to the surface of gray fabrics after attaching dyes to microcapsules containing photochromic materials
Advanced fiber spinning technologies such as melt spinning and electrospinning have also been widely used to produce photochromic synthetic fibers, however, the production of photochromic textiles is still a complex and challenging process

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Pretreatment: Under the condition of 80°C, 1 g of cotton fabric was immersed in NaOH solution with a mass fraction of 2% at a bath ratio of 1:50 and washed for 60 min, then taken out, washed, and dried.

[0025] (2) Mercerizing finishing: immerse the cotton fabric pretreated in step (1) in a NaOH solution with a mass fraction of 10% at a bath ratio of 1:30, react at room temperature for 180 min, then take it out, wash it, and dry it.

[0026] (3) Oxidation treatment: at 60°C, put the cotton fabric after step (2) mercerizing into NaIO with a mass fraction of 1% at a bath ratio of 1:30 4 In the solution, react in the dark for 60 minutes, then take it out, wash it, and dry it in vacuum.

[0027] (4) Dip the cotton fabric oxidized in step (3) in 30mL of distilled water and stir evenly, and slowly raise the temperature to 60°C. While keeping the temperature constant, mix 2mL of glutaraldehyde with 10mL of distilled water and drop Add it, react for 1h, and then add dropw...

Embodiment 2

[0031] (1) Pretreatment: Under the condition of 80°C, 2 g of cotton fabric was immersed in NaOH solution with a mass fraction of 5% at a bath ratio of 1:50 and washed for 60 min, then taken out, washed, and dried.

[0032] (2) Mercerizing finishing: immerse the cotton fabric pretreated in step (1) in a NaOH solution with a mass fraction of 20% at a bath ratio of 1:30, react at room temperature for 75 minutes, then take it out, wash it, and dry it.

[0033] (3) Oxidation treatment: at 80°C, put the cotton fabric after step (2) mercerizing into NaIO with a mass fraction of 5% at a bath ratio of 1:50 4 In the solution, react in the dark for 120 minutes, then take it out, wash it, and dry it in vacuum.

[0034] (4) Soak the cotton fabric after the oxidation treatment in step (3) in 80mL of distilled water and stir evenly, and slowly raise the temperature to 80°C. Add it, react for 0.5h, then add dropwise 10mL of 30% HBP-HTC aqueous solution, continue to react for 3h, then take ou...

Embodiment 3

[0038] (1) Pretreatment: At 80°C, 1 g of cotton fabric was immersed in a 4% NaOH solution with a bath ratio of 1:50 and washed for 60 minutes, then taken out, washed, and dried.

[0039] (2) Mercerizing finishing: immerse the cotton fabric pretreated in step (1) in a NaOH solution with a mass fraction of 30% at a bath ratio of 1:100, react at room temperature for 60 minutes, then take it out, wash it, and dry it.

[0040](3) Oxidation treatment: at 40°C, put the cotton fabric after step (2) mercerizing into 4% NaIO with a bath ratio of 1:30 4 In the solution, react in the dark for 180 minutes, then take it out, wash it, and dry it in vacuum.

[0041] (4) Dip the oxidized cotton fabric in step (3) into 50mL of distilled water and stir evenly, and slowly heat up to 70°C. Under the condition of keeping the temperature constant, mix 2.5mL of glutaraldehyde with 20mL of distilled water Add it dropwise, react for 0.5h, then add 8mL of 20% HSDA aqueous solution dropwise, continue to...

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 the textile field, and discloses photochromic cotton fabric and a preparation method thereof. The cotton fabric obtained after pretreatment is soaked into a NaOH solution to be subjected to mercerized finish treatment and then soaked into a NaIO4 solution to be subjected to oxidization treatment, then amino end group hyperbranched polymer treatment is carried out, amidogenis added to active groups on the surface of the cotton fabric besides hydroxyl, and therefore POM with the photochromic effect can be closely connected with the cotton fabric through the hydroxyl andthe amidogen on the surface of the cotton fabric; and then the photochromic cotton fabric has good heat stability, high fatigue resistance and metachromatism sensitivity. The preparation process is simple, the cost is low, and enlarged production is easy.

Description

technical field [0001] The invention relates to the textile field, in particular to a photochromic cotton fabric and a preparation method thereof. Background technique [0002] Incorporating photochromic materials into cotton fibers commonly used in clothing manufacturing to make clothing have innovative aesthetics and functional effects has become a new research direction. There are not many types of photochromic materials that have been discovered so far, and there are many problems such as difficult synthesis, high price, poor reusability and poor stability, and most photochromic fabrics are made by mixing dispersed forms of photochromic materials. Organic components are used to obtain photochromic functions, and the penetration methods of photochromic organic components mainly include dyeing, screen printing, and dyeing to the surface of gray fabrics after attaching dyes to microcapsules containing photochromic materials. Advanced fiber spinning techniques such as melt ...

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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IPC IPC(8): D06M11/38D06M11/30D06M13/123D06M15/19D06M11/68D06B7/08D06M101/06
CPCD06M11/38D06M11/30D06M13/123D06M15/19D06M11/68D06B7/08D06M2101/06
Inventor 毛庆辉郁佳梁志结郑琳娟张莉
Owner NANTONG UNIVERSITY