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One-bath dyeing process for cotton and linen blended fabric by using natural vegetable dye

A technology of natural plant dyes and blended fabrics, applied in the textile field, can solve problems such as corrosion equipment, application restrictions, and environmental pollution, and achieve the effects of reducing waste water discharge, reducing energy consumption, and less harmful effects

Inactive Publication Date: 2017-05-24
长兴锦桥纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pH value of sodium chlorite bleaching solution is 4 to 4.5, and it is carried out at high temperature. It has the advantages of good whiteness and little damage to fibers, but it is easy to produce toxic gases during bleaching, pollute the environment, and corrode equipment. The equipment requires special equipment. Made of metal materials, so it is limited in application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of one-bath method dyeing process of natural plant dyestuff to cotton linen blended fabric, comprises the following steps:

[0035] A. Freeze the cotton-linen blended fabric at minus 50°C for 3.5 hours, then carry out vacuum reheating under a vacuum of -0.2MPa to return the cotton-linen blended fabric to normal temperature, and the vacuum rewarming time is controlled at 1.2h ;

[0036] B. Put the rewarmed cotton and linen blended fabric into the one-bath treatment solution with a bath ratio of 1:15, then raise the temperature to 100°C at a rate of 2.5°C / min and keep it warm for 30 minutes;

[0037] C. After the heat preservation is over, take out the fabric, rinse with sodium silicate solution for 3 minutes, soap, wash and dry.

[0038] The one-bath method treatment liquid of described step B comprises the composition of following percentage by weight:

[0039] Natural Vegetable Dyes 5%

[0040] Sodium Lauryl Sulfate 3%

[0041] Hydrogen peroxide 0.8%

[004...

Embodiment 2

[0052] A kind of one-bath method dyeing process of natural plant dyestuff to cotton linen blended fabric, comprises the following steps:

[0053] A. Refrigerate the cotton-linen blended fabric at minus 45°C for 5 hours, then carry out vacuum rewarming under a vacuum of -0.2MPa to return the cotton-linen blended fabric to normal temperature, and control the vacuum reheating time at 1 hour;

[0054] B. Put the rewarmed cotton-linen blended fabric into the one-bath treatment solution with a bath ratio of 1:20, then raise the temperature to 100°C at a rate of 2°C / min and keep it warm for 30 minutes;

[0055] C. After the heat preservation is over, take out the fabric, rinse with sodium silicate solution for 2 minutes, soap, wash and dry.

[0056] The one-bath method treatment liquid of described step B comprises the composition of following percentage by weight:

[0057] Natural Vegetable Dyes 2%

[0058] Surfactant 4%

[0059] Hydrogen peroxide 0.5%

[0060] Soda Ash 2%

[0...

Embodiment 3

[0070] A kind of one-bath method dyeing process of natural plant dyestuff to cotton linen blended fabric, comprises the following steps:

[0071] A. Refrigerate the cotton-linen blended fabric at minus 60°C for 3 hours, and then carry out vacuum reheating under a vacuum of -0.2MPa to return the cotton-linen blended fabric to normal temperature, and the vacuum reheating time is controlled at 1.5h;

[0072] B. Put the rewarmed cotton and linen blended fabric into the one-bath treatment solution with a bath ratio of 1:10, then raise the temperature to 100°C at a speed of 3°C / min and keep it warm for 20 minutes;

[0073] C. After the heat preservation is over, take out the fabric, rinse with sodium silicate solution for 3.5 minutes, soap, wash and dry.

[0074] The one-bath method treatment liquid of described step B comprises the composition of following percentage by weight:

[0075] Natural Vegetable Dyes 8%

[0076] Surfactant 2%

[0077] Hydrogen peroxide 1%

[0078] Soda...

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Abstract

The invention discloses a one-bath dyeing process for a cotton and linen blended fabric by using natural vegetable dye. The one-bath dyeing process comprises the following steps: firstly, carrying out low-temperature treatment on the cotton and linen blended fabric; secondly, finishing boiling off, bleaching and dyeing at a time by adopting a one-bath treatment process. According to the one-bath dyeing process, a process flow is shortened, the discharge amount of wastewater is reduced, energy consumption is reduced, and the national requirements of energy conservation, consumption reduction, and reduction of discharge amount of the wastewater and waste gases on a textile industry are met; no organic solvent is used in the whole dyeing process, so that the harm to a human body and environment is little; a one-bath treatment solution can be repeatedly used, so that the discharge mount of the wastewater can be reduced; the dyeing color difference can be remarkably reduced by prolonging the one-bath treatment time; after the solution is treated by adopting a one-bath method and is subjected to color fixing by a sodium silicate solution, so a color fixing effect is excellent, the dyeing rate can reach 95 percent or above, and the color fixing rate also can reach 90 percent or above.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a one-bath dyeing process of cotton and linen blended fabrics with natural plant dyes. Background technique [0002] Natural fibers contain impurities, and in the process of textile processing, various pulps, oils and contaminated dirt are added. The existence of these impurities not only hinders the smooth progress of dyeing and finishing, but also affects the wearability of fabrics. The purpose of scouring and bleaching is to use chemical and physical mechanical effects to remove impurities on the fabric, so that the fabric is white, soft, and has good permeability, so as to meet the wearing requirements and provide qualified semi-finished products for dyeing, printing, and finishing. Generally, it is necessary to perform singeing, desizing, scouring, bleaching and mercerizing on cotton fibers. [0003] Scouring: When cotton fiber grows, it is accompanied by natural impuritie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/85D06P1/34D06P1/44D06P1/647D06P1/673D06P5/10
CPCD06P3/828D06P1/34D06P1/44D06P1/647D06P1/673D06P1/6735D06P5/10
Inventor 钱光强
Owner 长兴锦桥纺织有限公司
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