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Homochromatic dyeing process of wool/silk blended fabric

A blended fabric and same-color dyeing technology, which is applied in dyeing, textiles and papermaking, can solve the problems of low color fastness, complicated process, large color difference, etc., and achieve good color fastness, good same color, and reduce emissions Effect

Inactive Publication Date: 2014-08-13
TONGXIANG PUYUAN WOOLEN KNITTING TECH SERVICE CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the defects in the existing one-bath dyeing process of wool / silk blended fabrics, such as complex procedures, high dyeing cost, large color difference, low color fastness, and large amount of dyeing wastewater.

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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Embodiment Construction

[0008] The present invention will be further described below in conjunction with embodiment.

[0009] A process for same-color dyeing of wool / silk blended fabrics, the process at least includes the following steps: a. Fabric washing: washing the wool blended fabrics in warm water at 40°C, dehydrating after removing impurities; b. Dyeing: washing the washed The finished fabric is placed in the dyeing machine, and 2% owf leveling agent is added, which is a mixture of β-dimethylaminoethyl stearamide and fatty alcohol polyoxyethylene ether; 2% owf vinyl sulfone bis Dyeing with reactive dyes, the bath ratio is 1:15, the pH value is controlled at 5-7 during the dyeing process; the dyeing temperature is 85-90°C, and the dyeing time is 80-100 minutes; c. Color fixation: the dyed fabric Wash with water at 50°C, add 3% owf color fixing agent, and soak at room temperature for 30 minutes; d. Dry: After dehydrating the wool blended fabric, pre-dry it at 80°C for 3 minutes; then dry the ble...

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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Abstract

The invention provides a homochromatic dyeing process of wool / silk blended fabric, which comprises the following steps: A)washing fabric; B)dyeing: placing the washed fabric in a dyeing machine, adding 1-2%owf leveling agent, adding 1-3%owf vinyl sulfone double-reactive-group dye for dyeing, wherein bath ratio is 1: 10-30, controlling the pH value at 5-7 during a dyeing process; wherein the dyeing temperature is 80-90 DEG C, and the dyeing time is 80-100 minutes; C)fixing color: washing water with temperature of 50 DEG C on the dyed fabric, adding 3-5%owf fixing agent, immersing for 30-50 minutes under normal temperature; and D)drying. The homochromatic dyeing process has the advantages of good homochromatic property of blended fabric and good color fasteness, the fastness of soaping and dry friction can reach more than grade four, moisture friction fastness can reach more than grade 3, and the discharge capacity of the dyeing waste water can be greatly reduced.

Description

technical field [0001] The invention relates to a fabric dyeing process, in particular to a same-color dyeing process for wool / silk blended fabrics. Background technique [0002] Wool is an important natural fiber, which is widely used in high-grade textile fabrics. However, wool fiber has complex physical and chemical structures, and its surface layer has a hydrophobic scale layer structure, which is extremely unfavorable to the adsorption and dyeing of dye molecules, and at the same time prevents dyes from Diffusion into the fiber. Silk and wool are both protein fibers, but their chemical and physical structures and properties are quite different. Therefore, the dyeing performance of silk and wool fabrics is different from that of pure wool fabrics and silk fabrics, and the dyeing process has certain particularities. From the perspective of the structure of silk and wool, they are all natural protein fibers, and the molecules contain polar groups such as amino, carboxyl,...

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): D06P3/85D06P1/642D06P1/613
Inventor 曹月华
Owner TONGXIANG PUYUAN WOOLEN KNITTING TECH SERVICE CENT
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