Method for padding dyed cellulose fabric with natural vegetable dye

A technology of natural vegetable dyes and cellulose fabrics, applied in the direction of dyeing, textile and paper making, etc., can solve the problems of poor color fastness to washing and low dyeing amount, so as to improve the color fastness to washing and increase the dyeing amount. Effect

Inactive Publication Date: 2017-10-10
WUHAN TEXTILE UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for pad-dyeing cellulose fabrics with natural vegetable dyes, which solves the problems of low dyeing amount and poor color fastness to washing in the existing natural vegetable dyeing process

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 for padding dyed cellulose fabric with natural vegetable dye
  • Method for padding dyed cellulose fabric with natural vegetable dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: Get 20g, 30g, 40g, 50g of natural dye gardenia blue and dissolve in 1L of water, add 4g of cationic dye fixing agent, be made into dyeing working solution. Soak 6g of cotton cloth in the gardenia blue dyeing working solution to absorb the dye, roll it on a paddle car, then immerse it in the gardenia blue dyeing working solution for dyeing, and then roll it on the padding car (that is, two dips and two pads), so that the soaked The liquid carrying rate of the pad-dyed cotton cloth was 90% (ie 11.4 g), and then dried at 90°C. Wash the dried dyed cotton cloth in 500ml washing liquid containing 2g / L non-ionic detergent at 70°C for 15min, and finally dry it to complete the cotton cloth dyeing.

[0019] The K / S value of the dyed cotton cloth after washing and drying was detected by a color measuring instrument to characterize the dyeing amount of natural dyes, and the color fastness to washing of the dyed cotton cloth after washing was detected. The results are ...

Embodiment 2

[0023] Embodiment 2: Get 40g of natural dye gardenia blue and dissolve in 1L of water, add 0g, 2g, 3g, 4g, 5g of cationic dye fixing agent, be made into dyeing working solution. Soak 6g of cotton cloth in the gardenia blue dyeing working solution to absorb the dye, roll it on a paddle car, then immerse it in the gardenia blue dyeing working solution for dyeing, and then roll it on the padding car (that is, two dips and two pads), so that the soaked The cotton cloth after pad dyeing had a liquid retention rate of 90%, and was then dried at 90°C. Wash the dried dyed cotton cloth in 500ml washing liquid containing 2g / L non-ionic detergent at 70°C for 15min, and finally dry it to complete the cotton cloth dyeing.

[0024] The K / S value of the dyed cotton cloth after washing and drying was detected by a color measuring instrument to characterize the dyeing amount of natural dyes, and the color fastness to washing of the dyed cotton cloth after washing was detected. The results are ...

Embodiment 3

[0029] Embodiment 3: Dissolve 40 g of natural dye gardenia blue in 1 L of water, add 4 g of cationic dye fixing agent, and make dyeing working solution. Soak 6g of cotton cloth in the gardenia blue dyeing working solution to absorb the dye, roll it on a paddle car, then immerse it in the gardenia blue dyeing working solution for dyeing, and then roll it on the padding car (that is, two dips and two pads), so that the soaked The liquid-carrying ratios of the pad-dyed cotton cloths were 70%, 80%, 90%, and 100%, respectively, and then dried at 90°C. Wash the dried dyed cotton cloth in 500ml washing liquid containing 2g / L non-ionic detergent at 70°C for 15min, and finally dry it to complete the cotton cloth dyeing.

[0030] The K / S value of the dyed cotton cloth after washing and drying was detected by a color measuring instrument to characterize the dyeing amount of natural dyes, and the color fastness to washing of the dyed cotton cloth after washing was detected. The results ar...

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 for padding dyed cellulose fabric with natural vegetable dye. The natural vegetable dye is added to water and natural vegetable dye liquor is prepared; a cationic dye fixing agent is dissolved in the natural vegetable dye liquor and a dye working solution is prepared; the to-be-dyed cellulose fabric is immersed in the prepared dye working solution, padded on a padder and immersed in a gardenia blue dye working solution for dip dyeing and then padded on the padder, and the to-be-dyed cellulose fabric is colored; the colored cellulose fabric is dried after coloring is completed, the dried colored cellulose fabric is washed with a washing agent, and flooding is removed; the washed cellulose fabric is dried and dyeing with the natural vegetable dye is completed. The method has the benefits that the dyeing amount of the natural dye can be increased, the washing color fastness can be improved, and the color of the natural dye cannot be affected.

Description

technical field [0001] The invention belongs to the technical field of textile chemistry and relates to a method for pad-dyeing cellulose fabrics with natural vegetable dyes. Background technique [0002] In recent years, with the improvement of people's living standards, green and environmentally friendly textiles are favored by consumers. Therefore, the research on dyeing natural fibers with natural dyes has attracted widespread attention, especially the dyeing technology of cotton fibers dyed with natural plant dyes. [0003] Natural plant dyes are extracted from plants and are a sustainable biological resource with the advantages of non-toxic, harmless, pollution-free and biodegradable. However, due to the structure of the dye molecule itself, natural plant dyes have low brilliance, uneven hue, and deviations in weather fastness. During the dyeing process, the dyeing amount of dyes on cotton fibers and the color fastness to washing are poor, which limits their applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/34D06P1/44D06P3/60D06P5/02
CPCD06P1/34D06P1/445D06P3/60D06P5/02
Inventor 吴济宏林经伟张新斌蔡映杰
Owner WUHAN TEXTILE UNIV
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