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Natural dye and dyeing method

A technology of natural dyes and dyeing methods, applied in the field of textile chemistry, to achieve the effect of improving levelness, good affinity and good color fastness

Inactive Publication Date: 2019-08-02
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many reports about the extraction method of chrysanthemum pigment, and it is mainly used in food coloring, but there is no application research on fabric dyeing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of natural dyes:

[0030] Grind the petals of the commercially available Kunlun chrysanthemum, take 2g of Kunlun chrysanthemum, add 1200mL of water, carry out ultrasonic-assisted extraction for 50min under the conditions of ultrasonic temperature 60°C and ultrasonic power 300W, and filter the residue to obtain the dye solution.

[0031] Direct dyeing:

[0032] Select 10 grams of pre-treated cotton fabric, put it into 450mL of the above dyeing solution, stir, the pH of the dyeing solution is 5-6, the dyeing temperature is 30°C, and the dyeing time is 50 minutes. After dyeing, take out the cloth sample, wash it and let it dry naturally After drying, the color of the fabric is uniform. The measured K / S value of the dyed fabric is 3.3. The color fastness to soaping reaches 4-5 grades, the wet rubbing fastness reaches 4 grades, and the dry rubbing fastness reaches 5 grades.

[0033] Post-mordanting staining:

[0034] Select 10g of pre-treated cotton fabric, put...

Embodiment 2

[0038] Preparation of natural dyes:

[0039] Grind the petals of the commercially available Kunlun chrysanthemum, take 2g of Kunlun chrysanthemum, add 1400mL of water, and conduct ultrasonic-assisted extraction for 45min under the conditions of ultrasonic temperature of 80°C and ultrasonic power of 320W, and filter the residue to obtain the dyeing solution .

[0040] Direct dyeing:

[0041] Select 10 grams of pre-treated cotton fabric, put it into 500mL of the above dyeing solution, stir, the pH of the dyeing solution is 4-5, the dyeing temperature is 10°C, and the dyeing time is 60 minutes. After dyeing, take out the cloth sample, wash it and let it dry naturally After drying, the color of the fabric is uniform. The measured K / S value of the dyed fabric is 3.6. The color fastness to soaping reaches 4-5 grades, the wet rubbing fastness reaches 4 grades, and the dry rubbing fastness reaches 5 grades.

[0042] Post-mordanting staining:

[0043]Select 10g of pre-treated cotton...

Embodiment 3

[0048] Preparation of natural dyes:

[0049] Grind the petals of the commercially available Kunlun chrysanthemum, take 2g of Kunlun chrysanthemum, add 1600mL of water, and carry out ultrasonic-assisted extraction for 35min under the conditions of ultrasonic temperature of 70°C and ultrasonic power of 350W, and filter the residue to obtain the dyeing solution .

[0050] Direct dyeing:

[0051] Select 10 grams of silk fabric to be dyed, put it into 550mL of the above dye solution, stir, the pH value of the dye solution is 3-4, the dyeing temperature is 50°C, and the dyeing time is 40min. After dyeing, take out the cloth sample, wash it and dry it naturally , the color of the fabric is uniform, the measured K / S value of the dyed fabric is 4.7, the color fastness to soaping reaches 4-5, the wet rubbing fastness reaches 4-5, and the dry rubbing fastness reaches 5.

[0052] Post-mordanting staining:

[0053] Select 10g of silk fabric to be dyed, put it into 550mL of the above dye...

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Abstract

The invention provides natural dye and a dyeing method. The natural dye is prepared in the step as follows: after being aired and smashed, senecio cineraria petals are added to water and subjected toultrasonic extraction. The natural dye has stronger affinity for various fabrics and has the advantages of high dyeing coloring rate, good color fastness and concise process, and meanwhile, the fabrics are endowed with special healthcare performance, and the natural dye has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of textile chemistry, in particular to a natural dye and a dyeing method. Background technique [0002] At this stage, most printing and dyeing enterprises use synthetic dyes, such as reactive dyes, disperse dyes, acid dyes and cationic dyes. Synthetic dyes dyed fabrics have the advantages of high color fastness, bright colors, rich colors, and fast and simple dyeing. However, synthetic dyes have a serious impact on the environment, and some synthetic dyes are irritating to human skin, and some synthetic dyes can also cause serious allergies, which is not conducive to health. Plant dyes have a long history of application in the history of human development. They are mainly extracted from plant stems, leaves, flowers and other parts. They are non-toxic, harmless, non-allergic and carcinogenic to the skin, and have good biodegradability. Compatible with the environment, in addition to the dyeing function, it ...

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): C09B61/00C09B67/54D06P1/34
CPCC09B61/00C09B67/0096D06P1/34
Inventor 吴军玲张维许佳檀倩靳晓雨
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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