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Technology for dyeing textile by means of plant dyes

A technology of plant dyes and textiles, applied in textiles, papermaking, dyeing and other directions, can solve problems such as harm to environmental water and other resources, threats to human health, etc.

Inactive Publication Date: 2016-12-21
杨江源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, printing and dyeing enterprises are using chemical dyes, such as reactive dyes, disperse dyes, acid dyes and cationic dyes, etc. These are dyes produced artificially from coal and petroleum as raw materials as intermediates, which not only endanger the environment, water and other resources, but also pose a threat to human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A kind of technique that utilizes vegetable dyestuff to carry out dyeing treatment to textile (the textile processed in this embodiment is cotton fiber),

[0012] Specifically, the steps are as follows:

[0013] The first step, pre-treatment: the cotton fiber is first treated with enzymes to remove impurities on the surface of the fiber, and then dehydrated and dried; this step is a conventional treatment, which is the same as the existing technology;

[0014] The second step, padding: the cotton fiber after the pretreatment is dipped and rolled twice on the sizing machine (the excess rate of rolling is 60%-90%), the monocarboxylic acid concentration of the padding liquid is 6-15g / L, and the catalyst concentration is 8-20g / L, pre-bake at 80°C-90°C for 3 minutes, then bake for 2 minutes at 130°C-170°C;

[0015] The third step, dip-dyeing at room temperature: Put the fabric into the tank, wash it with water, then add baking soda at room temperature, the concentration is ...

Embodiment 2

[0021] A kind of technique that utilizes vegetable dyestuff to carry out dyeing treatment to textile (the textile processed in this embodiment is cotton fiber),

[0022] Specifically, the steps are as follows:

[0023] The first step, pre-treatment: the cotton fiber is first treated with enzymes to remove impurities on the surface of the fiber, and then dehydrated and dried; this step is a conventional treatment, which is the same as the existing technology;

[0024] The second step, padding: the cotton fiber after the pretreatment is soaked and rolled twice on the sizing machine (the excess rate of rolling is 70%-80%), the monocarboxylic acid concentration of the padding liquid is 9-12g / L, and the catalyst concentration is 12-16g / L, pre-bake at 80°C-90°C for 3 minutes, then bake for 2 minutes at 130°C-170°C;

[0025] The third step, dip-dyeing at room temperature: Put the fabric into the tank, wash it with water, then add baking soda at room temperature, the concentration is...

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Abstract

The invention belongs to the technical field of printing and dyeing and particularly relates to a technology for dyeing textiles by means of plant dyes. The textiles can be yarn or fabrics and can be made of cotton fiber, bamboo fiber, viscose and chemical fiber modified fiber. The textiles with impurities removed through pretreatment are washed with water and then subjected to normal-temperature dip dyeing and modification, then the plant dyes are used for dip dyeing, and then after-treatment is conducted to obtain dyed textiles. Original plant resources are used for dyeing textile fabrics, so that the fabrics completely get rid of damage of toxic chemical dyes, can be recycled and do no harm to the environment and human beings, the production process is short, and products are stable. Compared with chemical products, cost is low. Compared with other plant dye dyeing technologies, colors are more uniform and dyeing defects are not likely to happen in dyeing application of most plants, color fastness is higher, and accordingly the technology has a very wide prospect in actual application.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing, in particular to a process for dyeing textiles with vegetable dyes. Background technique [0002] Due to the continuous progress of human printing and dyeing technology, plant dyeing gradually withdrew from the stage of history after the emergence of chemical dyes. At this stage, printing and dyeing enterprises are using chemical dyes, such as reactive dyes, disperse dyes, acid dyes and cationic dyes, etc. These are dyes produced artificially from coal and petroleum as raw materials as intermediates, which not only endanger the environment, water and other resources, but also pose a threat to human health. However, in today's increasingly harsh living environment and increasingly serious chemical pollution, it is necessary to seek environmental protection and sustainable printing and dyeing technology. Contents of the invention [0003] The invention provides a process for dyeing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/34D06P1/673D06P1/653D06P3/60
CPCD06P1/34D06P1/6533D06P1/6735D06P1/67358D06P3/60
Inventor 杨江源
Owner 杨江源
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