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Preparation method of pH color-changing fabric

A technology of fabric and pH value, which is applied in dyeing, textiles and papermaking, etc., can solve the problems of limited application research, and achieve the effect of simple process, good rubbing fastness and low cost

Inactive Publication Date: 2014-02-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, applied research on fabrics dyed with acid chromogenic dyes by conventional dyeing processes is 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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  • Preparation method of pH color-changing fabric
  • Preparation method of pH color-changing fabric
  • Preparation method of pH color-changing fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a pH-value color-changing fabric, the steps are as follows:

[0027] (1) Prepare alizarin dye (Sinopharm Chemical Reagent Co., Ltd.) solution with distilled water, and then use a pipette to accurately suck the specified amount of dye solution into a clean dyeing cup to make up the required amount of water.

[0028] (2) After the dye bath is prepared, squeeze the bleached cotton cloth that has been wetted in water and put it into the alizarin dye bath to start dyeing. The amount of dye is 0.5% (owf), and the bath ratio is 50:1.

[0029] (3) Dyeing process: use a constant temperature oscillator in a water bath to dye cotton fabrics. The fabrics are dyed at 40°C. After reaching 90°C, they are dyed for 30 minutes and then cooled to room temperature.

[0030] (4) After dyeing, after washing and soaping, place the dyed fabric in an electric heating constant temperature blast drying oven to dry.

[0031] (5) In order to characterize the acid color rendering of al...

Embodiment 2

[0034] A method for preparing a pH-value color-changing fabric, the steps are as follows:

[0035] (1) Prepare the Congo red dye (China Yuanhang Reagent Factory Shanghai) solution with distilled water, and then use a pipette to accurately suck the specified amount of dye solution into a clean dyeing cup to make up the required amount of water.

[0036] (2) After the dye bath is prepared, squeeze the bleached cotton cloth that has been wetted in water and put it into the Congo red dye bath to start dyeing. The amount of dye is 0.5% (owf), and the bath ratio is 50:1.

[0037] (3) Dyeing process: use a constant temperature oscillator in a water bath to dye cotton fabrics. The fabrics are dyed at 40°C. After reaching 90°C, they are kept and dyed for 30 minutes and then cooled to room temperature.

[0038] (4) After dyeing, after washing and soaping, place the dyed fabric in an electric heating constant temperature blast drying oven to dry.

[0039] (5) In order to characterize the acid col...

Embodiment 3

[0042] A method for preparing a pH-value color-changing fabric, the steps are as follows:

[0043] (1) Prepare brilliant yellow dye (Sinopharm Chemical Reagent Co., Ltd.) solution with distilled water, and then use a pipette to accurately suck the specified amount of dye solution into a clean dyeing cup to make up the required amount of water.

[0044] (2) After the dyeing bath is prepared, squeeze the bleached cotton cloth that has been wetted in water and put it into the brilliant yellow dyeing bath to start dyeing. The amount of dye is 0.5% (owf), and the bath ratio is 50:1.

[0045] (3) Dyeing process: use a constant temperature oscillator in a water bath to dye cotton fabrics. The fabrics are dyed at 40°C. After reaching 90°C, they are dyed for 30 minutes and then cooled to room temperature.

[0046] (4) After dyeing, after washing and soaping, place the dyed fabric in an electric heating constant temperature blast drying oven to dry.

[0047] (5) In order to characterize the acid...

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 a preparation method of a pH color-changing fabric. The preparation method comprises steps as follows: (1), a dye solution is prepared by pH indicator dye and distilled water, then, a required amount of the dye solution is accurately measured and diluted, and a dye bath is obtained; (2), a bleached cotton fabric wetted in water is drained and then immersed in the dye bath for dyeing, a water bath constant-temperature oscillator is used for dyeing the dyeing cotton fabric, the fabric is dyed at 40 DEG C, the fabric is kept warm for 30 minutes after the temperature reaches 90 DEG C, then the cotton fabric is cooled to the normal temperature, the cotton fabric is washed in water, washed with soap and then dried after dyeing is finished, and the dyed cotton fabric is obtained; (3), the dyed cotton fabric is immersed into a pH buffer solution, and the pH color-changing fabric is obtained. According to the preparation method, the preparation process is simple and convenient, the cost is low, the wet color fastness and the crockfastness are good, the obtained pH color-changing fabric can be used for preparing a fabric pH sensor and the like, and the preparation method has a broad prospect.

Description

Technical field [0001] The invention belongs to the field of preparation of color-changing fabrics, and particularly relates to a method for preparing color-changing fabrics with a pH value. Background technique [0002] Color plays a very important role in people's daily life, and the change of color can be used as an important visual signal. In recent decades, color-changing materials whose colors can be reversibly changed by external stimuli have attracted a lot of attention. Photochromism is a color change induced by light, thermochromism is a color change caused by heat, and ionic discoloration is a color change caused by an ion. [0003] Smart textiles are new types of textiles that have only appeared in recent years and have become the subject of research in many disciplines in recent years. Among smart textiles, color-changing textiles have recently attracted great interest from academia. Color-changing textiles refer to textiles that can display different colors with ch...

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): D06P1/00D06P3/60
Inventor 朱利民田玉玲孙晓竹
Owner DONGHUA UNIV
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