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Method for dyeing cotton fabric with tea dye and finishing liquor used by method

A technology for finishing liquid and cotton fabrics, applied in the directions of dyeing, fiber treatment, plant fibers, etc., to achieve the effects of good color fastness, increased cost, and high color yield

Inactive Publication Date: 2013-12-18
CHANGZHOU TEXTILE GARMENT INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the mordant effect of metal ions can improve color depth and fastness, it is contrary to the idea of ​​using natural dyes to produce green textiles

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A finishing liquid used in a method for dyeing cotton fabrics with tea dyes, its components and the mass parts of each component are as follows:

[0033] Chitosan powder: 5 parts;

[0034] 4% glacial acetic acid solution: 22 parts;

[0035] Water: 1000 parts.

[0036] A method for dyeing cotton fabrics with tea dyes, the process steps are as follows:

[0037] 1) Crush the tea leaves, add water to extract the tea dye; control the extraction temperature at about 95°C during extraction, and control the extraction time at 0.5-1h, and maintain the quality of the tea during the extraction process: the volume of clear water is equal to the required tea dye concentration, during the extraction Add clear water to keep the total liquid volume constant; wherein, the unit of tea quality is gram, and the unit of clear water volume is liter. The tea dye is selected from the tea dye containing more than 30% tea polyphenols as a pigment component.

[0038] 2) Preparation of finishi...

Embodiment 2

[0046] A finishing liquid used in a method for dyeing cotton fabrics with tea dyes, its components and the mass parts of each component are as follows:

[0047] Chitosan powder: 2 parts;

[0048] 4% glacial acetic acid solution: 25 parts;

[0049] Water: 1000 parts.

[0050] A method for dyeing cotton fabrics with tea dyes, the process steps are as follows:

[0051] 1) Crush the tea leaves, add water to extract the tea dye; control the extraction temperature at about 95°C during extraction, and control the extraction time at 0.5-1h, and maintain the quality of the tea during the extraction process: the volume of clear water is equal to the required tea dye concentration, during the extraction Add clear water to keep the total liquid volume constant; wherein, the unit of tea quality is gram, and the unit of clear water volume is liter. Tea dyes give priority to tea dyes containing more than 30% tea polyphenols as pigment components.

[0052] 2) Preparation of finishing solu...

Embodiment 3

[0060] A finishing liquid used in a method for dyeing cotton fabrics with tea dyes, its components and the mass parts of each component are as follows:

[0061] Chitosan powder: 1 part;

[0062] 4% glacial acetic acid solution: 20 parts;

[0063] Water: 1000 parts.

[0064] A method for dyeing cotton fabrics with tea dyes, the process steps are as follows:

[0065] 1) Crush the tea leaves, add water to extract the tea dye; control the extraction temperature at about 95°C during extraction, and control the extraction time at 0.5-1h, and maintain the quality of the tea during the extraction process: the volume of clear water is equal to the required tea dye concentration, during the extraction Add clear water to keep the total liquid volume constant; wherein, the unit of tea quality is gram, and the unit of clear water volume is liter. The tea dye is selected from the tea dye containing more than 30% tea polyphenols as a pigment component.

[0066] 2) Preparation of finishing ...

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 dyeing a cotton fabric with tea dye and finishing liquor used by the method. The method comprises the following process steps of (1) crushing tea leaves, and adding clean water to extract the tea dye; (2) preparing the finishing liquor from the following materials in parts by weight: 1-5 parts of chitosan powder, 20-25 parts of a glacial acetic acid solution with the concentration being 4%, and 1000 parts of water, namely firstly adding the glacial acetic acid solution with the concentration being 4% into the chitosan powder gradually, simultaneously stirring uniformly, adding water, and mixing uniformly to obtain the finishing liquor; (3) finishing the cotton fabric with the finishing liquor in an immersing and rolling method; and (4) dyeing the cotton fabric finished by the finishing liquor. The method disclosed by the invention has the advantages that not only can the dyeing depth and fastness of the dyed cotton fabric be improved, but also the antibacterial effect and the clean and environment-friendly effects can be achieved.

Description

technical field [0001] The invention relates to a method for dyeing cotton fabric with tea dye and a finishing liquid used therefor, belonging to the technical field of textile dyeing. Background technique [0002] At present, tea dye is a kind of natural dye. It is rich in tea polyphenols, a physiologically active substance, and its content accounts for about 20-35% of its dry weight. , anti-mutation, antibacterial, antiviral and other functions. [0003] my country is a big tea-producing country, but because the price of spring tea is much higher than that of summer and autumn tea, there will be a phenomenon that tea farmers are less motivated to pick summer and autumn tea, so this part of tea resources needs to be fully developed and utilized. The development of natural, healthy, environmentally friendly, retro and elegant tea-dyed cotton fabrics with antibacterial functions will have better economic and social benefits. [0004] When dyeing cotton with tea dye, due to ...

Claims

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/34D06P3/60D06M15/03D06M13/188D06M101/06
Inventor 高妍王明芳朱红陶丽珍田恬
Owner CHANGZHOU TEXTILE GARMENT INST
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