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Hemp and denim active dye and dyeing technology

A technology of reactive dyes and denim, which is applied in dyeing, textiles and papermaking, and can solve the problems of poor reproducibility, difficulty, and insufficient stability of color and light in dyeing

Inactive Publication Date: 2014-07-30
浙江丝之美服饰染整有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is very difficult to produce assorted colors by using the combined pulp and dyeing machine. The main problem is that the shade is not stable enough, and the reproducibility of dyeing is also poor, which cannot meet the needs of downstream enterprises.

Method used

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  • Hemp and denim active dye and dyeing technology
  • Hemp and denim active dye and dyeing technology
  • Hemp and denim active dye and dyeing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Described hemp denim reactive dyestuff, its formula and technology are as follows:

[0071] Formula: reactive yellow 3RS3% owf, sodium chloride 4% owf, sodium carbonate 2.5% owf, polyvinylamine 2.0% owf, penetrant TR5% owf, bath ratio: 1:10.

[0072] Process: Warp beam, scouring, dyeing, color fixing, washing with warm water, drying, and it is ready. Among them, the yarn is treated with penetrating agent TR for scouring, the temperature is 60°C, 3 passes of dyeing with reactive dyes and sodium chloride are added at 70°C, each dipping time is 16s, and 3 passes of sodium carbonate and polyvinylamine are added for color fixation at 90°C. The fixation time is 90s each time, the dyeing speed is 18m / min, two washes with warm water at 60°C, and then dried.

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PUM

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Abstract

The invention provides a hemp and denim active dye and a dyeing technology. The dye is prepared from active yellow 3RS, sodium chloride, sodium carbonate, polyvinylamine and a penetrant TR. The dye and the dyeing technology are high in reproducibility, high in stability and high in dry and wet fastness; after being dyed, a fabric has a high fixation rate and is full in chromaticity and bright in color. Multiple practices prove that a yarn sample is finally very close to that supplied by a customer; meanwhile, dyeing is quite stable; the sizing percentage is proper, and the cloth machine efficiency is over 95 percent; a final denim product is extremely close to a sample supplied by the customer in the style, the color and the quality, and the enzyme wash and stone grinding effect of the final denim product is almost the same with that of the sample supplied by the customer.

Description

technical field [0001] The invention relates to a hemp denim reactive dye and a dyeing process. Background technique [0002] Hemp fabric has very good performance. First of all, hemp has excellent moisture absorption, perspiration, breathable and thermal conductivity. Compared with cotton fabric, hemp clothing can make the human body feel about 5°C lower in temperature, even in the hot summer when the temperature is as high as 38°C and above. It will not feel that the heat is unbearable, and because of the good hygroscopicity of the hemp fiber, the hemp fiber has good antistatic properties. Secondly, because there are gaps and cavities in the longitudinal direction of the surface of the hemp fiber, the hemp fiber has a unique sound-absorbing function. Moreover, the hemp fiber also has heat resistance, sun resistance and corrosion resistance, and the hemp fiber and its products have good anti-mildew, antibacterial and health care functions. Hemp fibers do not have the inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/673D06P1/52D06P3/66
Inventor 宋战会董金奎
Owner 浙江丝之美服饰染整有限公司
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