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Natural dye dying method based on cotton fiber modification

A technology of natural dyes and dyeing methods, which is applied to the preparation of cotton fiber modified liquid, the application of natural dye dyeing technology, and the field of natural dye dyeing of cotton fibers, which can solve the problems of poor color fastness and low dyeing rate, and achieve Easy to operate, uniform dyeing, and the effect of improving the dyeing rate

Active Publication Date: 2008-05-28
GUANGDONG ESQUEL TEXTILES CO LTD +1
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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 overcome the shortcomings of low dyeing rate and poor color fastness of natural dyes on cotton fibers, and provide a natural dyeing method based on cotton fiber modification

Method used

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  • Natural dye dying method based on cotton fiber modification
  • Natural dye dying method based on cotton fiber modification
  • Natural dye dying method based on cotton fiber modification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The present embodiment selects cotton fabric to carry out dyeing treatment, and concrete steps are as follows:

[0024] (1) Cationic modified liquid treatment

[0025] The formula of the cationic modifier solution is as follows: the dosage of cationic modifier is 15 g / liter, the bath ratio is 1:20, the cotton fabric is treated for 10 minutes at room temperature, and then the temperature is raised to 70 DEG C at a heating rate of 2 DEG C / min, and the 4 g / L caustic soda, treated at 70°C for 60 minutes, after modification, wash the fabric with cold water.

[0026] (2) Dyeing with natural dyes

[0027] Cotton fabrics treated with the above cationic modification solution were dyed with natural dyes copper sodium chlorophyllin, annatto and gardenia yellow; at the same time, the same dyeing process was used to dye the cotton fabric without cationic modification solution as it was deal with. The formula of the dyeing solution is: the weight percent concentration (o.w.f) of t...

Embodiment 2

[0029] (1) Cationic modified liquid treatment

[0030] The formula of the cationic modifier solution is as follows: the cationic modifier dosage is 18 g / L, the bath ratio is 1:20, the cotton fabric is treated for 5 minutes at room temperature, and then the temperature is increased to 70 DEG C at a heating rate of 2 DEG C / min, and the 5 g / L caustic soda, treated at 70°C for 60 minutes, after modification treatment, wash the fabric with cold water.

[0031] (2) Dyeing with natural dyes

[0032] Cotton fabrics treated with the above cationic modification solution were dyed with natural dyes copper sodium chlorophyllin, annatto and gardenia yellow; at the same time, the same dyeing process was used to dye the cotton fabric without cationic modification solution as it was deal with. The formula of the dyeing solution is: the weight percent concentration (o.w.f) of the dye relative to the fabric is 2%, the bath ratio is 1:20, at room temperature, the cotton fabric treated with the...

Embodiment 3

[0034] (1) Cationic modified liquid treatment

[0035] The formula of the cationic modifier solution is as follows: the cationic modifier dosage is 21 g / liter, the bath ratio is 1:20, the cotton fabric is treated for 5 minutes at room temperature, and then the temperature rises to 70 DEG C at a heating rate of 2 DEG C / min, adding 6 g / L caustic soda, treated at 70°C for 60 minutes, after modification treatment, wash the fabric with cold water.

[0036] (2) Dyeing with natural dyes

[0037] Cotton fabrics treated with the above cationic modification solution were dyed with natural dyes copper sodium chlorophyllin, annatto and gardenia yellow; at the same time, the same dyeing process was used to dye the cotton fabric without cationic modification solution as it was deal with. The formula of the dyeing solution is: the weight percent concentration (o.w.f) of the dye relative to the fabric is 2%, the bath ratio is 1:20, at room temperature, the cotton fabric treated with the abo...

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Abstract

The invention relates to a dyeing method of natural dye material of cotton fabric, which belongs to the field of fabric dyeing and finishing technique and comprises: processing the modifying liquid by use of the modifying agent containing anode ions group, firstly modifying the cotton fabric and dyeing the fabric with the natural dyeing material, after cleaning, fulfilling the dyeing with the natural dye material of cotton fabric, wherein due to the modifying process on the cotton fabric in advance, the anode ion base is introduced into the cotton fabric to strengthen the combination ability from the cotton fabric to the natural dye material of cathode ion, which effectively improves the cotton fabric dyeing rate, color depth and dyeing evenness and distinctly improves the anti-washing and anti-abrasion firmness of the dyed cotton fabric. The process has simple operation, even dyeing and wide application prospect.

Description

[0001] Technical field: the present invention relates to the natural dye dyeing technology of cotton fiber, belongs to the technical field of textile dyeing and finishing, particularly relates to the preparation method of the modified liquid of cotton fiber and its application in natural dye dyeing technology. Background technique [0002] Cotton fiber is an important natural fiber, which is favored by people for its advantages such as wearing comfort, renewability and biodegradability. Natural dyes come from nature, are harmless to human health, and have good compatibility with the environment, do not pollute the environment, are biodegradable, and meet the requirements of modern people for their own health and environmental protection. Therefore, the ecological dyeing technology using natural dyes is in line with the concept of modern environmental protection and ecology. [0003] Most natural dyes have high dye uptake and color fastness on protein fibers such as silk and wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/34D06P3/60
Inventor 张玉高周立明任安民邵建中周岚
Owner GUANGDONG ESQUEL TEXTILES CO LTD
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