Dye-fixing agent for wool fiber and preparation method thereof

A technology of color-fixing agent and wool fiber, which is applied in the field of color-fixing agent for wool fiber and its preparation, which can solve problems such as falling off, staining, old fabric appearance, and poor fastness

Inactive Publication Date: 2013-10-02
ZHANGJIAGANG DONGFANG SPECIAL DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production process of the textile industry, in the desizing, refining, bleaching, dyeing, finishing and other process steps of the weaving of fabrics in the textile printing and dyeing process, some fabrics can be dyed with brighter colors through the action of dyes. Well, it will affect the fastnes

Method used

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Embodiment Construction

[0011] 1 Accurately weigh and measure by weight: hydroquinone 3g; epichlorohydrin 30ml; catalyst 15g; absolute ethanol 150ml; sodium hydroxide 18g, set aside.

[0012] 2. Preparation method

[0013] Add hydroquinone into the three-necked beaker bottle, then place epichlorohydrin in the dropping funnel with a pipette and slowly add it dropwise, while adding the catalyst, and use infrared heating to keep the temperature of the reaction mixture at 80°C. Stir with a stirrer, condense and reflux for about two hours, add absolute ethanol to the obtained product, dissolve it completely, then weigh solid sodium hydroxide, grind it, and slowly add it to the above absolute ethanol solution until the reaction is complete , filter the reaction product, and then distill out absolute ethanol from the filtrate to obtain a wool fiber color-fixing agent.

[0014] When used, it is 1.2% to 1.8% of the weight of the fabric, the bath ratio is 1:20, and the temperature is 40°C to 60°C.

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PUM

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Abstract

The invention relates to a dye-fixing agent for a wool fiber and a preparation method thereof. The dye-fixing agent for the wool fiber mainly comprises hydroquinone, epoxy chloropropane, a catalyst, absolute ethyl alcohol and sodium hydroxide. The dye-fixing agent for the wool fiber has a good dye-fixing effect on wool fiber fabrics after dyeing the dyestuff, has slight influence on color of the fabrics and belongs to an environment-friendly dye-fixing agent, and free formaldehyde in the synthetic process is avoided.

Description

technical field [0001] The invention relates to a color-fixing agent for wool fiber and a preparation method thereof, belonging to the technical field of textile dyeing auxiliaries. Background technique [0002] In the production process of the textile industry, in the desizing, refining, bleaching, dyeing, finishing and other process steps of the weaving of fabrics in the textile printing and dyeing process, some fabrics can be dyed with brighter colors through the action of dyes. Well, it will affect the fastness, and the phenomenon of fading and color sticking is more serious, which not only makes the fabric itself look old, but also the pigment will fall from the wet fiber that has been dyed, staining white or dyeing other colors On the fiber, fabrics of different colors will stain and match each other during washing. Therefore, in the dyeing process, it is necessary to add a color-fixing agent to enhance the fastness of the pigment. [0003] It is known that a variety...

Claims

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Application Information

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IPC IPC(8): D06P5/08C08G59/06
Inventor 庞华军
Owner ZHANGJIAGANG DONGFANG SPECIAL DYEING
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