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Process for dyeing wool-cotton worsted fabric with vegetable dye

A plant dye and worsted fabric technology, applied in the field of plant dye dyeing technology, can solve the problems of poor skin affinity, poor fabric color saturation, and damage to the wool scale layer, so as to improve the diffusion ability, improve the binding force, and improve soaping Effect of color fastness and color fastness to crocking

Inactive Publication Date: 2016-09-28
JIANGSU SUNSHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, plasma treatment is not currently used in large-scale production. Protease hydrolysis treatment will produce a large amount of protein-containing production wastewater. Wet steam treatment uses high-temperature steam to treat wool fibers, which can not only destroy the scale layer on the wool surface, but also damage the mechanical properties of wool fibers. Intensity has a greater impact
In addition, the cotton fiber color-fixing agents in the prior art mostly use chemically synthesized substances, which have poor skin affinity and do not meet people's requirements for the green and natural dyes and auxiliary agents of fabrics, and the cotton fiber color-fixing agents in the prior art are not Applicable to wool fibers, resulting in poor color saturation of the fabric

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

[0018] For realizing above-mentioned technical effect, the plant dyeing process of wool cotton worsted fabric in embodiment 1 comprises the following steps:

[0019] S1: Ultraviolet radiation treatment, put the wool cotton fabric in the ultraviolet light box, adjust the power of the ultraviolet light tube to 30W, the wavelength of ultraviolet light to 250nm, and the ultraviolet irradiation time to 4h;

[0020] S2: Immerse the fabric obtained in S1 in the plant dye solution at 40°C, raise the temperature to 80°C at a heating rate of 1°C / min, keep it warm for 70 minutes, the pH value of the plant dye solution is 6.5, and then take out the fabric;

[0021] S3: Soak the fabric obtained in S2 in the color-fixing bath, heat the color-fixing bath to 55°C, keep it warm for 8 minutes, take out the fabric and dry it at 80°C;

[0022] The color-fixing bath liquid is made by mixing rosin powder color-fixing agent and water. The composition of rosin powder color-fixing agent includes water...

Embodiment 2

[0027] The difference between embodiment 2 and embodiment 1 is:

[0028] S1: Adjust the power of the ultraviolet light tube to 35W, the wavelength of ultraviolet light to 260nm, and the ultraviolet irradiation time to 8h;

[0029] S2: Heat up to 85°C at a heating rate of 1.5°C / min, keep warm for 100 minutes, and the pH of the plant dyeing solution is 7.5, and then take out the fabric;

[0030] S3: Heat the color-fixing bath to 65°C, keep it warm for 15 minutes, take out the fabric and dry it at 90°C;

[0031] The color-fixing bath liquid is made by mixing rosin powder color-fixing agent and water. The composition of rosin powder color-fixing agent includes water, lower alcohol, and rosin powder, wherein the ratio of the weight sum of water and lower alcohol to the weight of rosin powder is 1 :2.

[0032] The lower alcohol is isopropanol; the plant dye in the plant dye solution is shikonin.

[0033] The amount of rosin powder color fixing agent in the color fixing bath is 10...

Embodiment 3

[0036] The difference between embodiment 3 and embodiment 1 is:

[0037] S1: Adjust the power of the ultraviolet light tube to 32W, the wavelength of ultraviolet light to 255nm, and the ultraviolet irradiation time to 6h;

[0038] S2: Heat up to 82°C at a heating rate of 1-1.5°C / min, keep warm for 85 minutes, and the pH of the plant dyeing solution is 7, and then take out the fabric;

[0039] S3: Heat the color-fixing bath to 60°C, keep it warm for 11 minutes, take out the fabric and dry it at 85°C;

[0040] The color-fixing bath liquid is formed by mixing rosin powder color-fixing agent and water. The composition of rosin powder color-fixing agent includes water, lower alcohol, and rosin powder, wherein the ratio of the weight sum of water and lower alcohol to the weight of rosin powder is 4 :7.

[0041] The lower alcohol is n-butanol; the plant dye in the plant dye solution is gardenia pigment.

[0042] The amount of rosin powder color fixing agent in the color fixing bat...

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PUM

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Abstract

The invention discloses a vegetable dye dyeing process for worsted wool and cotton fabrics, which comprises the steps of ultraviolet radiation treatment, dyeing, color fixing and the like. In the present invention, ultraviolet light is used to irradiate the worsted cotton fabric to oxidize the cystine on the surface of wool fiber scales in the fabric and break the disulfide bond, which helps to improve the dye adsorption of wool fiber and the diffusion capacity of dye in the fiber In addition, the use of rosin powder as a color-fixing agent can improve the color fastness to soaping and rubbing of dyed fabrics. Specifically, rosin powder can be cross-linked on the fiber surface to form a film, and form a coordination bond with the fiber surface group , Improve the binding force between the fiber and the dye molecule.

Description

technical field [0001] The invention relates to the technical field of textile production, in particular to a plant dyeing process for wool and cotton worsted fabrics. Background technique [0002] Wool-cotton worsted fabrics are made from a blend of wool fibers and cotton fibers. Due to the presence of the scale layer on the surface of wool fibers, dyes are not easy to enter the interior of wool fibers, resulting in a low dyeing rate of wool fabrics. The improved technical scheme adopts methods such as wet steaming, plasma treatment and protease hydrolysis treatment, aiming to partially hydrolyze the scale layer on the wool surface and make the wool fiber structure more relaxed. However, plasma treatment is not currently used in large-scale production. Protease hydrolysis treatment will produce a large amount of protein-containing production wastewater. Wet steam treatment uses high-temperature steam to treat wool fibers, which can not only destroy the scale layer on the w...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P3/85D06P5/08D06M10/00D06M101/12D06M101/06
CPCD06P1/34D06M10/001D06M2101/06D06M2101/12D06P3/829D06P5/08
Inventor 何良孙金虎陶海蓉
Owner JIANGSU SUNSHINE
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