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Method for improving color fastness of photochromic fabric

A technology for color fastness and fabric, applied in the field of textile dyeing and finishing, can solve problems such as limited research, and achieve the effect of small color reduction and good color fixing effect

Inactive Publication Date: 2014-02-12
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sol-gel method was first applied in printing and dyeing in the functional finishing of fabrics, and the research on color fixation is relatively limited.

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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  • Method for improving color fastness of photochromic fabric
  • Method for improving color fastness of photochromic fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Add propyltrimethoxysilane (50%) and ethanol (30%) into the beaker in turn, stir on the stirrer to make them mix evenly, and the stirring speed is 230-450 rpm; under stirring Add hydrochloric acid (0.005-1.0mol / L) solution dropwise to the mixture; stir at room temperature for 24 hours.

[0029] (2) Dip the dyed fabric twice in the finishing solution (2-3kg / cm2), and then dry it in a blast oven at 120°C to 170°C for several minutes.

[0030] (3) Test the fastness of the dyed fabric, the details are as follows:

[0031] ①Rubbing fastness test:

[0032] According to GB / T3920-1997 test method for fastness to rubbing of textiles.

[0033] ②Soaping fastness test:

[0034] According to GB3921-83 test method for color fastness to washing of textiles (evaluate the color fastness to washing of fabrics by testing the staining of adjacent fabrics and the fading of original fabrics)

[0035] (4) Example

[0036] Explanation of different color changing fabric numbers

[003...

Embodiment 2

[0044] (1) Add ethyl orthosilicate (50%), propyltrimethoxysilane (0.1%), and ethanol (30%) into the beaker in sequence, and stir on the stirrer to make them mix evenly, and the stirring speed is at 230~450 rpm; add hydrochloric acid (0.005~1.0mol / L) solution dropwise to the mixture under stirring; stir at room temperature for 24 hours.

[0045] (2) Dip the dyed fabric twice in the finishing solution (2-3kg / cm2), and then dry it in a blast oven at 120°C to 170°C for several minutes.

[0046] (3) Test the fastness of the dyed fabric, the details are as follows:

[0047] ③Rubbing fastness test:

[0048] According to GB / T3920-1997 test method for fastness to rubbing of textiles.

[0049] ④ Soaping fastness test:

[0050] According to GB3921-83 test method for color fastness to washing of textiles (evaluate the color fastness to washing of fabrics by testing the staining of adjacent fabrics and the fading of original fabrics)

[0051] (4) Example

[0052] Explanation of differ...

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Abstract

The invention relates to a method for improving the color fastness of a photochromic fabric. The method comprises the following steps: (1), at the room temperature, mixing tetraethoxysilane and glutamic-pyruvic transamine with ethyl alcohol, stirring until uniform mixing, then dripping hydrochloric acid drop by drop under stirring, and stirring unceasingly for 5 hours so as to obtain a finishing liquor; (2), at the room temperature, carrying out two times of soaking and two times of rolling to the photochromic fabric in the finishing liquor, then drying, and finally baking the photochromic fabric. The method provided by the invention has the advantages that the color fixing is convenient, the consumed time is short, the cost is low, pollutions to the environment are small, and the effect in improving the color fastness of the photochromic fabric is obvious; an agent capable of being in reaction with and combined with textile fiber is selected as a raw material to prepare a colloidal sol finishing liquor, when finishing is performed on the photochromic fabric, overhigh temperature is not required, not only can the effect of improving the color fastness of the photochromic fabric be improved, but also damage to fabrics can be prevented.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, in particular to a method for improving the color fastness of color-changing fabrics. Background technique [0002] The sol-gel method is an emerging method in the wet chemical method of preparing materials. Its basic principle is to use inorganic substances or metal alkoxides as precursors, mix these raw materials uniformly in the liquid phase, and perform hydrolysis and condensation chemical reactions. A stable transparent sol system is formed in the medium. After the sol is aged, the colloidal particles are slowly aggregated to form a gel with a three-dimensional space network structure. The gel network is filled with solvents that have lost fluidity to form a gel. The gel is dried, sintered and solidified to prepare molecular and even nano-substructure materials. At present, it is mainly used in the preparation of glass, fiber, powder, film, coating, composite materials,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/08C08G77/04C08G77/02
Inventor 朱利民田玉玲孙晓竹
Owner DONGHUA UNIV
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