Dyeing method for hybrid loose fibers

A dyeing method and loose fiber technology, which is applied in the dyeing field of mixed loose fibers, can solve problems such as large differences in optimal process conditions and great difficulty, and achieve the goals of shortening the processing flow, reducing energy and water consumption, and reducing production costs Effect

Inactive Publication Date: 2013-03-13
SUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the different structures and properties of wool, silk and regenerated cellulose fibers, the dyeing rate, dyeing amount and dyeing depth of reactive dyes on the three fibers are also different, and the best process conditions for dyeing are also different. Larger, so it is difficult for the three fibers to dye the same color in the same tank and bath
At present, there is no report of the same color dyeing of wool\spun silk\regenerated cellulose fibers mixed with loose fibers in the same tank and bath

Method used

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  • Dyeing method for hybrid loose fibers
  • Dyeing method for hybrid loose fibers

Examples

Experimental program
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Effect test

Embodiment 1

[0020] In this embodiment, wool / spun silk / modal mixed loose fiber with a mixing ratio of 70:12:18 is used for dyeing medium color.

[0021] Step 1: Reductive bleaching and oxidative bleaching pretreatment

[0022] The formula of reduction bleach treatment liquid is as follows: the concentration of sodium hydrosulfite is 3g / L, the concentration of sodium silicate is 1g / L, the treatment starts at room temperature, the temperature is raised to 85°C at 2°C / min for 40 minutes, and the reduction bleach is washed with water.

[0023] The formula of the oxidative bleaching solution is as follows: hydrogen peroxide 6g / L, sodium silicate 0.4g / L, sodium bicarbonate 0.7g / L, start treatment at room temperature, heat up to 80°C at 2°C / min, and treat for 50 minutes.

[0024] Step 2: Dyeing with reactive dyes

[0025] The pretreated wool / spun silk / modal mixed loose fiber is dyed with three reactive dyes: Everzol Blue LX, Everzol Red ED-S and Everzol Ruby Red ED.

[0026] The formula of the ...

Embodiment 2

[0031] In this embodiment, wool / spun silk / modal mixed loose fibers with a mixing ratio of 70:20:10 are dyed in light colors.

[0032] This example changes the mixing ratio of wool / spun silk / modal mixed loose fiber, reactive dye species, pretreatment and dyeing formula and process to carry out dyeing experiments.

[0033] Step 1: Reductive bleaching and oxidative bleaching pretreatment

[0034] The formula of reduction bleach treatment solution is as follows: the concentration of hydrosulfite is 4g / L, the concentration of sodium silicate is 1g / L, the treatment is started at room temperature, the temperature is raised to 80°C at 2°C / min for 40 minutes, and the reduction bleach is washed with water.

[0035] The formula of the oxidative bleaching solution is as follows: hydrogen peroxide 8g / L, sodium silicate 0.4g / L, sodium bicarbonate 0.7g / L, start treatment at room temperature, heat up to 80°C at 2°C / min, and treat for 50 minutes.

[0036] Step 2: Dyeing with reactive dyes

...

Embodiment 3

[0043] In this embodiment, wool / spun silk / modal mixed loose fibers with a mixing ratio of 70:12:18 are dyed navy blue. In this embodiment, the dye species of the reactive dye used is changed to dye dark colors.

[0044] Step 1: According to the formula and process of Example 1, the three mixed loose fibers to be dyed are subjected to pre-treatment of reduction bleaching and oxidation bleaching.

[0045] Step 2: Reactive Dye Dyeing

[0046] Wool / spun silk / modal mixed loose fiber after pretreatment, dyed with Everzol black ED-R.

[0047] The formula of the dyeing solution is: dye dosage 6% (o.w.f.), ethoxy fatty acid amine derivative leveling agent dosage 0.8g / L, sodium sulfate dosage 70g / L, soda ash dosage 6g / L. Add leveling agent and dye in cold water and run for 10 minutes; add sodium sulfate and run for 10 minutes; heat up to 70°C at 2°C / min, add soda ash twice after running for 10 minutes, and continue dyeing for 50 minutes. After dyeing, rinse with clean water, wash wit...

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Abstract

The invention relates to a dyeing method for hybrid loose fibers and particularly relates to a method for co-bath dyeing of the hybrid loose fibers including wool fibers, spun silk fibers and regenerated cellulose fibers in a same cylinder, which belongs to the field of fabric dyeing. According to the technical scheme, the dyeing method comprises the step of performing pretreatment on the hybrid loose fibers subjected to co-bath in the same cylinder, wherein the pretreatment comprises the procedures of performing reduction bleaching on the fibers by sodium hydrosulfite and oxidation bleaching on the fibers by hydrogen peroxide, and then performing once same-color dyeing on the hybrid loose fibers through co-bath in the same cylinder by vinyl sulfone reactive dyes or reactive dyes containing vinyl sulfone groups. The dyeing method is used for dyeing the three loose fibers in the same dyeing cylinder by the reactive dyes, fulfills the aim of dyeing the three fibers, and changes the conventional processing mode of dyeing the three loose fibers for three times independently in the current spinning processing of colored blended yarns, thus greatly reducing the processing flow of the colored blended yarns, lowering the production costs of the colored blended yarns, achieving remarkable effects of energy conservation and emission reduction, and ensuring good homochromatism of the three fibers.

Description

technical field [0001] The invention relates to a dyeing method of mixed loose fibers, in particular to a method for dyeing wool, spun silk and regenerated cellulose fibers in the same tank, in the same bath and in the same color, and belongs to the technical field of textile finishing. Background technique [0002] With the development of textile industry technology and the improvement of people's consumption of textile and clothing, multi-component fiber textiles have risen strongly in the market, and are more and more favored by domestic and foreign consumers. Multi-component fiber blending is to mix fibers with different characteristics such as types, physical properties, functions, and shapes to weave clothing fabrics with functions, styles, and fabrics that single fiber materials do not have. At present, there are many kinds of multi-component fiber textiles on the market. Some popular blended products contain as few as 2 to 3 types of fibers, and as many as 4 to 6 typ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/655D06P1/673D06P3/16D06P3/10D06P3/66D06L3/14D06L3/10D06L3/02D06L4/12D06L4/13D06L4/30D06L4/70
Inventor 唐人成邢铁玲陈国强郭开银李晓辰张祖洪丁丽君
Owner SUZHOU UNIV
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