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Method of preparing pH value color-changeable fabric by utilizing vegetable dyes

A plant dye and fabric technology, applied in dyeing, textile and paper making, fiber treatment, etc., can solve the problems of chemical dyes endangering human health, environmental pollution, chemical dyes are difficult to degrade, etc., and achieve good acid-base change indication function, friction Good color fastness and strong affinity

Inactive Publication Date: 2015-11-11
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the dyes used to develop pH color-changing fabrics are chemical dyes, and most of the chemical dyes are difficult to degrade and cause serious environmental pollution, and some chemical dyes also have the problem of endangering human health. Therefore, the development and utilization of plant dyes are in line with human pursuit. The concept of green environmental protection and health

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 of preparing pH value color-changeable fabric by utilizing vegetable dyes
  • Method of preparing pH value color-changeable fabric by utilizing vegetable dyes
  • Method of preparing pH value color-changeable fabric by utilizing vegetable dyes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step 1: Grind turmeric, take the pulverized turmeric and immerse it in an ethanol solution with a volume concentration of 50% at a material-to-liquid ratio of 1:10, heat at 60°C for 2 hours, and filter through a 100-mesh sieve to remove plant residues to obtain Turmeric dye;

[0026] Step 2: Weigh potassium aluminum sulfate dodecahydrate and an appropriate amount of water relative to the mass of the cotton fabric at 5% to obtain a pretreatment solution with a bath ratio of 1:50; heat the pretreatment solution to 40°C and put it into the cotton fabric, and continue Raise the temperature to 80°C, keep it warm for 40 minutes, then take out the cotton fabric and squeeze out the water, and set aside;

[0027] Step 3: Measure the turmeric dyeing solution obtained in step 1 according to the bath ratio of 1:51, and use a constant temperature oscillating water bath to dye the fabric. When heated to 40°C, put the cotton fabric treated in step 2 into the dyeing solution to start d...

Embodiment 2

[0030] Step 1: Grind fresh mulberries, take the crushed mulberries and immerse them in an ethanol solution with a volume concentration of 50% at a material-to-liquid ratio of 1:2, heat at 60°C for 4 hours, and filter through a 100-mesh sieve to remove residues to obtain Mulberry dye;

[0031] Step 2: Weigh potassium aluminum sulfate dodecahydrate and an appropriate amount of water relative to the mass of the cotton fabric at 5% to obtain a pretreatment solution with a bath ratio of 1:50; heat the pretreatment solution to 40°C and put it into the cotton fabric, and continue Raise the temperature to 80°C, keep it warm for 40 minutes, then take out the cotton fabric and squeeze out the water, and set aside;

[0032] Step 3: Measure the mulberry dye solution obtained in step 1 according to the bath ratio of 1:85, and use a constant temperature oscillating water bath to dye the fabric. When heated to 40°C, put the cotton fabric treated in step 2 into the dye solution to start dyein...

Embodiment 3

[0035] Step 1: crush the black rice, take the crushed black rice and immerse it in an ethanol solution with a volume concentration of 50% at a material-to-liquid ratio of 1:6, heat at 60°C for 4 hours, and filter through a 100-mesh sieve to remove the residue. Obtain black rice dyeing solution;

[0036] Step 2: Weigh 5% potassium aluminum sulfate dodecahydrate and appropriate amount of water relative to the mass of the fabric to obtain a pretreatment solution with a bath ratio of 1:50; heat the pretreatment solution to 40°C and put it into the silk fabric, and continue to heat up To 80 ℃, keep warm for 40 minutes, then take out the silk fabric and squeeze out the water, set aside;

[0037] Step 3: Measure the black rice dyeing solution obtained in step 1 according to the bath ratio of 1:100, use a constant temperature oscillating water bath to dye the fabric, and when heated to 40°C, put the silk fabric treated in step 2 into the dyeing solution to start dyeing, Raise the tem...

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 discloses a method of preparing a pH value color-changeable fabric by utilizing vegetable dyes. The method comprises the following steps: first extracting vegetable dye liquid, then preprocessing a fabric, taking the obtained dye liquid according to a bath ratio of 1 to (51 to 100), heating to 40 DEG C, placing the preprocessed fabric into the dye liquid to begin the dyeing, heating at a rate of 1 DEG C per minute to 90.5 to 95 DEG C, preserving the heat for 45 to 60 minutes, cooling to the room temperature, washing the fabric by water, soaping the fabric, and drying to obtain the pH value color-changeable fabric. Juice of edible plant is extracted to be used as the dye liquid, thereby being non-toxic and harmless to the environment and a human body, wide in source of raw materials and capable of being biologically degraded and having a good acid-alkali variation indication function, and the prepared pH value color-changeable fabric is particularly suitable for the medicine field; the affinity of the vegetable dye to fibers is high, the dyeing process is convenient and simple, uniform in dyeing and good in washing color fastness and friction color fastness.

Description

technical field [0001] The invention belongs to the technical field of functional textiles, and relates to a method for preparing pH value color-changing fabrics by using vegetable dyes. Background technique [0002] pH color-changing fabrics refer to textiles that can change color with changes in the pH value of the external environment, and have the function of indicating acid-base changes. At present, pH value color-changing fabrics can be used in many fields, such as medical bandages with acid-base indication function, and monitor the healing of wounds according to the change in the color of the bandages. The pH value of healthy skin is usually below 5. When the pH value reaches When the pH value is 6.5-8.5, it means that the wound has been seriously infected, and the band-aid with the function of changing pH value can monitor the healing of the wound without uncovering the band-aid. In addition, pH color-changing fabrics can be applied to the development of protective ...

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): D06P1/34D06M11/57
Inventor 陈莉李潇
Owner XI'AN POLYTECHNIC UNIVERSITY
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