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Dyeing method

A dyeing method and fabric technology, applied in the field of dyeing and finishing, can solve the problems of low dye uptake and poor UV resistance, and achieve the effects of enhanced binding ability, good wash fastness, and broad application prospects

Inactive Publication Date: 2010-09-08
KIPONE CHINA SPIN DRESS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of dyeing method in order to overcome the problem of poor UV resistance of cellulose fabrics and low dyeing rate of cationic dyes

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0033] A dyeing method, comprising the steps of:

[0034] 1) Modification of cellulose fabrics with reactive UV absorbers for cellulose with anionic groups:

[0035] (The structural formula of the UV absorber is Dosage 3% (owf); liquid ratio 1:10, the concentration of Yuanming powder in the modified liquid is 3wt%)

[0036] Disperse 30g of Yuanming powder and 3g of UV absorber into water to prepare 1000ml of modified solution; take 100g of cotton fabric and soak in the modified solution for 15min, then raise the temperature to 30℃ at a rate of 2℃ / min, keep it warm for 50min and divide it in batches Add soda ash, the concentration of soda ash in the modified solution is controlled at 3-10g / L, wash with water after the heat preservation is completed.

[0037] 2) Dye the modified fabric with berberine: (berberine 0.1% (owf), liquid ratio 1: 4)

[0038] Dissolve 0.1g of berberine in water to prepare 400ml of dyeing liquor, put the modified cotton fabric into the dyeing liquor ...

Embodiment 2

[0040] A dyeing method, comprising the steps of:

[0041] 1) Modification of cellulose fabrics with reactive UV absorbers for cellulose with anionic groups:

[0042] (The structural formula of the UV absorber is The dosage is 4% (owf); the liquid ratio is 1:20, and the concentration of Yuanming powder in the modified liquid is 10wt%)

[0043] Disperse 200g of Yuanming powder and 4g of UV absorber into water to prepare 2000ml of modified solution; take 100g of cotton fabric and soak in the modified solution for 20min, then raise the temperature to 60℃ at a rate of 3℃ / min, keep it warm for 40min and divide it in batches Add soda ash (the concentration of soda ash in the modification solution is controlled at 3-10g / L), and wash with water after the heat preservation is completed.

[0044] 2) Dye the modified fabric with berberine: (berberine 0.5% (owf), liquid ratio 1: 10)

[0045] Dissolve 0.5g of berberine in water to prepare 1000ml of dyeing liquor. Put the modified cotton...

Embodiment 3

[0047] A dyeing method, comprising the steps of:

[0048] 1) Modification of cellulose fabrics with reactive UV absorbers for cellulose with anionic groups:

[0049] (The structural formula of the UV absorber is Amount of 5% (owf); liquid ratio 1:30, the concentration of Yuanming powder in the modified liquid is 8wt%)

[0050] Disperse 240g of Yuanming powder and 5g of UV absorber into water to prepare 3000ml of modified liquid; put 100g of cotton fabric into the modified liquid and soak for 10min, then raise the temperature to 50°C at a speed of 1°C / min, keep it warm for 30min and divide it in batches Add soda ash (the concentration of soda ash in the modification solution is controlled at 3-10g / L), and wash with water after the heat preservation is completed.

[0051] 2) Dye the modified fabric with berberine: (berberine 1% (owf), liquid ratio 1: 15)

[0052] Dissolve 1g of berberine in water to prepare 1500ml of dyeing liquor, put the modified cotton fabric into the dye...

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Abstract

The invention relates to a dyeing method, which belongs to the technical field of dyeing and finishing. The method comprises the following steps that: 1) using cellulose use reaction type ultraviolet absorbers with anion radicals for carrying out modification treatment on cellulose type fabrics; and 2) using berberine for dyeing the modified fabrics. The invention adopts the cellulose use reaction type ultraviolet absorbers as modification agents, and the cellulose use reaction type ultraviolet absorbers and cellulose fiber take covalent crosslink reaction under the alkaline condition, so negative charges are introduced on the cellulose, the combination capability of the cellulose with cation natural dyestuff can be improved, the ultraviolet resistance capability of the cellulose type fabrics and the dyeing rate of the cation natural dyestuff can be improved at the same time through one-step modification, and the invention lays the foundation for the cellulose dyeing by the cation dyestuff. The berberine is selected for dyeing the cellulose type fiber such as cotton, hemp and the like, the invention has the advantages of green effect, health and no pollution, and the manufactured products have uniform color, and have good washing resistance firmness and friction resistance firmness.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing, and relates to a method for dyeing cellulose fibers with natural cationic dyes and at the same time endowing them with anti-ultraviolet properties. Background technique [0002] Cellulosic fibers such as cotton and hemp have the characteristics of good air permeability, strong hygroscopicity, and comfortable wearing, so they are deeply loved by consumers. Natural dyes refer to dyes obtained from plants, animals or mineral resources with little or no chemical processing, among which plant dyes are the main ones. Plant dyes originate from nature, are harmless to human health, and do not bring heavy burdens to the environment like synthetic dyes, which meet people's requirements for environmental protection and health. [0003] However, most vegetable dyes are anionic, and very few are cationic. As an important cationic plant dye, berberine is easy to dye acrylic fibers and protein fi...

Claims

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Application Information

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IPC IPC(8): D06P3/60D06P1/34D06M13/358D06M11/56D06M101/06
Inventor 曹机良孟春丽
Owner KIPONE CHINA SPIN DRESS
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