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Preparation method of antibacterial textile dyed by vegetable dye

A technology for antibacterial textiles and vegetable dyes, applied in dyeing methods, textiles and papermaking, resistance to vector-borne diseases, etc. problem, to achieve the effect of improving color fastness, excellent antibacterial activity, and improving color depth

Active Publication Date: 2022-05-20
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, vegetable dyes and textiles mostly rely on intermolecular forces such as hydrogen bonds and van der Waals forces. Therefore, textiles dyed with vegetable dyes have light colors, and multiple dyeings are often required to dye deep colors; the content of active ingredients in vegetable dyes is low. , the antibacterial activity of the dyed textiles is not high; and the color and antibacterial properties of the resulting fabrics are not washable

Method used

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  • Preparation method of antibacterial textile dyed by vegetable dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Prepare sodium percarbonate with a concentration of 0.5g / L, immerse the silk fabric in the solution, and treat it at 55°C for 30 minutes. After the end, wash it with water until the pH of the washing liquid is 6, then dry it at 60°C, and set it aside;

[0020] (2) Prepare a ε-polylysine solution with a concentration of 1g / L, immerse the fabric treated in step (1) in the ε-polylysine solution, absorb at 40°C for 60min, dehydrate after the adsorption, and set aside;

[0021] (3) Prepare a ferrous sulfate solution with a concentration of 0.2g / L, adjust the pH of the solution to 5 with formic acid, immerse the silk fabric adsorbed with ε-polylysine in it, and absorb it at 40°C for 45min. After the adsorption is completed, use deionized Wash 3 times, dry at 60°C, and set aside;

[0022] (4) Scutellaria baicalensis plant dyes are used to dye the silk fabrics treated in step (3), the amount of plant dyes is 1% (o.w.f), the liquor ratio is 1:10, the pH of the solution is ad...

Embodiment 2

[0036] (1) Prepare a mixed solution of 15g / L sodium percarbonate and 2g / L sodium hydroxide, immerse the cotton fabric in the mixed solution, and treat it at 85°C for 60 minutes. dry, spare;

[0037] (2) Prepare a ε-polylysine solution with a concentration of 10g / L, immerse the fabric treated in step (1) in the ε-polylysine solution, absorb at 80°C for 20min, dehydrate after the adsorption, and set aside;

[0038] (3) Prepare a ferric sulfate solution with a concentration of 1.0g / L, adjust the pH of the solution to 6 with formic acid, immerse the cotton fabric adsorbed with ε-polylysine, and absorb it at 80°C for 15 minutes. After the adsorption is completed, wash it with deionization 5 times, dry at 100°C and set aside;

[0039] (4) adopt gardenia plant dye to dye the cotton fabric processed through step (3), the plant dye consumption is 8% (o.w.f), the bath ratio is 1:30, the pH of the solution is adjusted to 6 with formic acid, and the dyeing temperature is 40° C. The dyei...

Embodiment 3

[0044] (1) Prepare a mixed solution of 10g / L sodium percarbonate and 1g / L sodium hydroxide, immerse the hemp fabric in the mixed solution, and treat it at 75°C for 45min. dry, spare;

[0045](2) Prepare a solution with a concentration of 5g / Lε-polylysine, immerse the hemp fabric treated in step (1) in the solution of ε-polylysine, absorb at 60°C for 40min, dehydrate after the adsorption, and set aside;

[0046] (3) Prepare a ferric chloride solution with a concentration of 0.8g / L, adjust the pH of the solution to 5.5 with formic acid, immerse the hemp fabric adsorbed with ε-polylysine in it, and absorb it at 60°C for 30 minutes. After the adsorption is completed, use deionized Wash 4 times, dry at 70°C, and set aside;

[0047] (4) adopt turmeric vegetable dye to dye the hemp fabric processed through step (3), the vegetable dye consumption is 5% (o.w.f), bath ratio 1:20, adjust solution pH to 5.5 with formic acid, dyeing temperature 60 ℃, dyeing After 45 minutes of dyeing, th...

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Abstract

The invention belongs to the field of textiles, and particularly relates to a preparation method of a plant dye dyed antibacterial textile, which comprises the following steps: firstly, pretreating the textile by using polylysine, then dipping in a metal salt solution, and finally dyeing the textile by using a plant dye with antibacterial activity. According to the method, the binding strength of the polylysine and the textile is improved by utilizing the complexation reaction between the metal salt and the polylysine; antibacterial active ingredients in the polylysine, the metal salt and the vegetable dye have a synergistic effect, so that the dyed textile is endowed with excellent antibacterial activity, textile dyeing and antibacterial finishing are performed at the same time, and the technological process is simplified.

Description

technical field [0001] The invention belongs to the field of textiles, in particular to a method for preparing antibacterial textiles dyed with vegetable dyes. Background technique [0002] In daily life, germs (including disease-causing bacteria and fungi) are ubiquitous. Textiles can keep warm from cold and play a very important role in human life. The porosity of textiles can easily absorb sweat, sebum, etc. secreted by the human body. These secretions provide nutrients for microorganisms, resulting in rapid growth and reproduction of microorganisms on textiles, endangering people's health. Therefore, it is very necessary to carry out antibacterial finishing to textiles. [0003] Vegetable dyes are natural pigments extracted from plant roots, leaves, flowers, fruits and other parts. The dyed textiles are soft, simple and natural in color. Since the raw materials of most plant dyes are Chinese herbal medicines, many plant dyes dyed textiles also have certain antibacteri...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P1/52D06P1/673D06P3/04D06P3/60
CPCD06P1/34D06P1/5278D06P1/67341D06P1/6735D06P3/04D06P3/60Y02A50/30
Inventor 彭勇刚汪媛纪俊玲陶永新黎珊
Owner CHANGZHOU UNIV
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