Low-temperature dyeing technology for wool fabric

A low-temperature dyeing and fabric technology, applied in the field of low-temperature dyeing technology, can solve the problems of long time consumption, complicated process steps, low wool pretreatment rate, etc., and achieve the effect of improving color fastness, smooth hand feeling and bright color

Active Publication Date: 2016-05-04
赤峰圣伦绒毛制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned process steps are cumbersome, and the wool fabrics treated with ionic liquids still need to be cleaned with ethanol. Most of the ionic liquids have a certain viscosity, and the amount of ionic liquids penetrated into the wool fiber is relatively small, which is finally manifested as the effect of ionic liquids on wool. The preprocessing rate is low, and preprocessing takes a long time

Method used

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  • Low-temperature dyeing technology for wool fabric

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Effect test

Embodiment 1

[0027] The low-temperature dyeing process of the woolen fabric of embodiment 1 (abbreviated as S1, the following embodiments are the same) comprises the following steps:

[0028] S1: Prepare the dye mixing solution, which contains reactive dyes, sodium sulfate, soluble rare earth chloride, pH regulator, ionic liquid and water. The weight ratio of wool fabric to reactive dyes is 1:0.02; soluble chlorine The rare earth element in the rare earth chloride is at least one selected from light rare earth and medium rare earth, the weight ratio of the wool fabric to the rare earth chloride is 1:0.001, the pH value of the dye mixing solution is 4.5, and the wool fabric and the ionic liquid The weight ratio is 1:0.15; the pH regulator is citric acid; the soluble rare earth chloride is lanthanum chloride; the weight ratio of wool fabric to sodium sulfate is 1:0.004; the ionic liquid is 1-butyl-3-methanol Kiimidazolium chloride sub-liquid;

[0029] S2: Immerse the wool fabric in the dye ...

Embodiment 2

[0034] The difference between embodiment 2 and embodiment 1 is:

[0035] S1: Prepare the dye mixing solution, which contains reactive dyes, sodium sulfate, soluble rare earth chloride, pH regulator, ionic liquid and water, and the weight ratio of wool fabric to reactive dyes is 1:0.045; The rare earth element in the soluble rare earth chloride is at least one selected from light rare earth and medium rare earth, the weight ratio of wool fabric to rare earth chloride is 1:0.005, the pH value of the dye mixing solution is 5.5, and the wool fabric and ion The weight ratio of the liquid is 1:0.35; the pH regulator is acetic acid-sodium acetate buffer pair; the soluble rare earth chloride is a mixture of neodymium chloride and gadolinium chloride chloride, and praseodymium chloride accounts for the weight of the soluble rare earth chloride The percentage is 50%; the weight ratio of wool fabric to sodium sulfate is 1:0.005; the dye mixture solution also includes a leveling agent, whic...

Embodiment 3

[0041] The difference between embodiment 3 and embodiment 1 is:

[0042] S1: Prepare the dye mixing solution, which contains reactive dyes, sodium sulfate, soluble rare earth chloride, pH regulator, ionic liquid and water, and the weight ratio of wool fabric to reactive dyes is 1:0.032; The rare earth element in the soluble rare earth chloride is at least one selected from light rare earth and medium rare earth, the weight ratio of the wool fabric to the rare earth chloride is 1:0.003, the pH value of the dye mixing solution is 5, the wool fabric and ion The weight ratio of the liquid is 1:0.25; the pH regulator is citric acid-sodium citrate buffer pair; the soluble rare earth chloride is a mixture of praseodymium chloride and samarium chloride, and praseodymium chloride accounts for the weight of the soluble rare earth chloride The percentage is 20%; the weight ratio of wool fabric to sodium sulfate is 1:0.02; the weight ratio of wool fabric to leveling agent is 1:0.05; the i...

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Abstract

The invention discloses a low-temperature dyeing technology for wool fabric. The technology comprises a mixed dye solution preparation step, a dyeing step, a fixation step, a post-treatment step and the like. By one-bath dyeing, an ionic liquid with a dissolution effect on wool keratins is added to a mixed dye solution; the keratins of wool fibers are partially dissolved at the initial dyeing stage; rapid penetration of dye molecules is accelerated by strong permeability and strong diffusivity of rare-earth ions after heating; and the rare-earth ions with positive charges and negative static electricity of the wool fibers are attracted by each other, can penetrate into the wool fibers, and can coordinate with groups, of exposed lysine residual bonds treated by the ionic liquid and the like, for determining the whiteness of the wool in the wool fibers, so that relatively small yellowing in the colors of the wool before and after being dyed is ensured.

Description

technical field [0001] The invention relates to the technical field of fabrics, in particular to a low-temperature dyeing process for wool fabrics. Background technique [0002] Wool is an excellent natural protein fiber, which is deeply loved by people for its plump hand feeling, excellent hygroscopicity, elasticity, breathability, warmth retention, comfort and unique garment effect. However, during the processing of wool textiles, if the processing is not done properly, for example, the dyeing adjustment is not properly controlled, these excellent properties will be affected, and the damage of wool fibers is one of them. The result of wool damage will lead to decreased fiber strength, decreased elongation, deterioration of tensile properties, decreased fiber spinnability, decreased fiber elasticity, easy embrittlement, and decreased bulkiness. [0003] CN102409557A discloses a method for pretreating wool fabrics using ionic liquids before dyeing, wherein the ionic liquids...

Claims

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Application Information

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IPC IPC(8): D06P1/38D06P1/613D06P1/642D06P1/649D06P1/651D06P1/673D06P3/14D06P5/04D06P5/08D06P5/20
CPCD06P1/38D06P1/613D06P1/6426D06P1/6491D06P1/65112D06P1/673D06P1/67341D06P3/148D06P5/04D06P5/08D06P5/2011
Inventor 赵军伟林红
Owner 赤峰圣伦绒毛制品有限公司
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