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Method for preparing plant dye fixing agent

A technology for vegetable dyes and fixing agents, which is applied in the field of preparation of vegetable dye fixing agents, can solve the problems of residue, low color fastness and dye uptake, cannot improve the antioxidant properties of vegetable dyes, etc., and achieves the improvement of antioxidant properties. , the effect of broad application prospects

Inactive Publication Date: 2018-04-20
闫博文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that after the use of the currently commonly used chemically synthesized color fixing agents, substances harmful to the human body and the environment may remain or decompose, and the antioxidant performance of vegetable dyes cannot be improved, and the color fastness and improvement The defect of low dyeing rate provides a kind of preparation method of plant dye fixing agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Weigh the spinach, wash it, put it in a tissue grinder, and grind it for 20 minutes to obtain the spinach grind, mix the spinach grind, water, pectinase and cellulase in a mass ratio of 10:5:1:1, and put it into an enzymatic hydrolysis tank in 30°C for 6 hours to obtain the enzymolyzed product; put the enzymolyzed product into a beaker and put it in a water bath, heat it up to 70°C, and keep it warm for 15 minutes. After the treatment, move the beaker into the refrigerator. Stand and age at 4°C for 10 hours, put it into a centrifuge after aging, and centrifuge at a speed of 3000r / min for 10 minutes to separate and remove the precipitate to obtain the supernatant; mix the obtained supernatant with 10% hydrochloric acid After mixing according to the volume ratio of 15:1, stir the reaction with a magnetic stirrer at a speed of 200r / min for 1h, and adjust the pH of the reaction product to 7.0 with a mass fraction of 30% ammonia water to obtain a self-made functional liquid; ...

example 2

[0026]Weigh the spinach, wash it, put it into a tissue grinder, and grind it for 25 minutes to obtain the spinach grind, mix the spinach grind, water, pectinase and cellulase in a mass ratio of 10:5:1:1, and put it into an enzymatic hydrolysis tank in 35°C for 7 hours to obtain the enzymatic hydrolyzate; put the enzymolyzate into a beaker, put it in a water bath, heat up to 75°C, and keep it warm for 18 minutes. After the treatment, move the beaker into the refrigerator. Stand and age at 4°C for 11 hours, put it into a centrifuge after aging, and centrifuge at a speed of 3500r / min for 13 minutes to separate and remove the precipitate to obtain the supernatant; mix the obtained supernatant with 10% hydrochloric acid After mixing according to the volume ratio of 15:1, stir the reaction with a magnetic stirrer at a speed of 250r / min for 1h, and adjust the pH of the reaction product to 7.1 with a mass fraction of 30% ammonia water to obtain a self-made functional liquid; the mass r...

example 3

[0028] Weigh the spinach, wash it, put it into a tissue grinder, and grind it for 30 minutes to obtain the spinach grind, mix the spinach grind, water, pectinase, and cellulase in a mass ratio of 10:5:1:1, and put it into an enzymatic hydrolysis tank in 40°C for 8 hours to obtain the enzymolyzed product; put the enzymolyzed product into a beaker and put it in a water bath, heat it up to 80°C, and keep it warm for 20 minutes. After the treatment, move the beaker into the refrigerator. Stand and age at 4°C for 12 hours, put it into a centrifuge after aging, and centrifuge at a speed of 4000r / min for 15 minutes to separate and remove the precipitate to obtain the supernatant; mix the obtained supernatant with 10% hydrochloric acid After mixing according to the volume ratio of 15:1, stir the reaction with a magnetic stirrer at a speed of 300r / min for 2h, and adjust the pH of the reaction product to 7.2 with a mass fraction of 30% ammonia water to obtain a self-made functional liqui...

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Abstract

The invention relates to a preparation method of a plant dye fixing agent, which belongs to the technical field of color fixing agent preparation. In the present invention, firstly, the iron-rich plant spinach is used as raw material to obtain a self-made functional liquid rich in ferrous ions, and then the green tea extract containing tea polyphenols is obtained by water extraction, and the catechol and the green tea extract are blended to obtain phenols Mixed solution, then blend and ferment aloe vera and grape skins, use microbial degradation to produce a large number of active groups such as free amino groups and carboxyl groups, and finally mix and concentrate each raw material to obtain a color-fixing agent. The color-fixing agent of the present invention uses phenolic mixed liquid As a substrate, ferrous ions are activated under the action of sodium peroxide and laccase to generate free radicals, and the combined free radicals can trigger the catalytic polymerization of the substrate during the dyeing process to generate large molecular weight directly in the cellulose "in situ". Polymer, the polymer is finally deposited on the fiber, and the dyeing agent on the surface of the fiber is coated and fixed, so as to improve the color fastness of the vegetable dye, and has a broad application prospect.

Description

technical field [0001] The invention relates to a preparation method of a plant dye fixing agent, which belongs to the technical field of color fixing agent preparation. Background technique [0002] Plant dyes are dyes extracted from plants, which have good biodegradability and environmental compatibility. Some plant dyes come from medicinal plants and have certain medical and health care functions. Therefore, the demand for textile dyes of plant dyes has greatly increased in Europe, America, Japan, South Korea and other countries. Utilizing natural vegetable dyes to develop ecological and safe fabrics has become one of the directions of textile development in the future. Vegetable dyes usually have defects such as low dyeing rate, poor color fastness and poor oxidation resistance, which limit their promotion. The main dyeing method of vegetable dyes on cotton fabrics: mordant dyeing generally uses traditional mordants containing heavy metal ions to obtain the color fastn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/10D06P5/06D06P1/34D06P5/22
CPCD06P5/10D06P1/34D06P5/06D06P5/22
Inventor 闫博文林茂兰
Owner 闫博文
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