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High-light-fastness acid dyestuff dyeing and finishing process

An acid dye and fastness technology, applied in the field of dyeing and finishing technology, can solve the problems of fading, low fabric fastness, and weak light resistance, achieve high fastness, high light resistance, and improve dyeing quality Effect

Inactive Publication Date: 2019-06-07
浙江名毅新能源股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the fabrics dyed and finished by traditional techniques often have low fastness and poor sun resistance, and are prone to color fading or fading, which damages the aesthetics and appreciation of the fabrics.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A dyeing and finishing process of acid dyes with high light fastness, comprising the following features

[0027] S1: greige cloth preparation;

[0028] S2: desizing and refining; including the steps of preparing a desizing mixed solution and using the desizing mixed solution to desizing gray cloth; the components of the desizing mixed solution are 0.2g / L detergent, 1.5g / L of soda ash, 1.5g / L of caustic soda, and 0.5g / L of sodium dithionite; the desizing process includes keeping the temperature of the desizing mixture at 75°C, and then adding the desizing mixture to the desizing mixture at a bath ratio of 1:10 Put the gray cloth in the middle, and the desizing treatment time is 15 minutes.

[0029] S3: Presetting; the presetting temperature is 180°C, the setting time is 30s, and the radial overfeed is 5%; the purpose of this process is to help maintain the dimensional stability and soft hand of the fabric and also affect the dyeing; the presetting temperature is too hi...

Embodiment 2

[0038] A dyeing and finishing process of acid dyes with high light fastness, comprising the following features

[0039] S1: greige cloth preparation;

[0040] S2: Desizing and refining; including the steps of preparing a desizing mixed solution and using the desizing mixed solution to desizing gray cloth; the components of the desizing mixed solution are 0.2g / L detergent, 2g / L L of soda ash, 2g / L of caustic soda, and 1g / L of sodium dithionite; the desizing process includes keeping the temperature of the desizing mixture at 80°C, and then adding For greige cloth, the desizing treatment time is 20 minutes.

[0041] S3: Presetting; the presetting temperature is 195°C, the setting time is 40s, and the radial overfeed is 8%; the purpose of this process is to help maintain the dimensional stability and soft hand of the fabric and also affect the dyeing; the presetting temperature is too high The wrinkles of the low cloth surface are not easy to remove, the fabric has poor wrinkle ...

Embodiment 3

[0050] A dyeing and finishing process of acid dyes with high light fastness, comprising the following features

[0051] S1: greige cloth preparation;

[0052] S2: Desizing and refining; including the steps of preparing a desizing mixed solution and using the desizing mixed solution to desizing gray cloth; the components of the desizing mixed solution are 0.25g / L detergent, 2.5g / L of soda ash, 2.5g / L of caustic soda, and 1.5g / L of sodium dithionite; the desizing process includes keeping the temperature of the desizing mixture at 85°C, and then adding the desizing mixture to the desizing mixture at a bath ratio of 1:10 Put the gray cloth in the middle, and the desizing treatment time is 25min.

[0053] S3: Presetting; the presetting temperature is 210°C, the setting time is 45s, and the radial overfeed is 10%; the purpose of this process is to help maintain the dimensional stability and soft hand of the fabric and also affect the dyeing; the presetting temperature is too high ...

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PUM

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Abstract

The invention discloses a high-light-fastness acid dyestuff dyeing and finishing process. The process is characterized by comprising the following steps of S1, preparation of a gray cloth; S2, desizing; S3, preshaping; S4, alkali reduction; S5, dyeing; S6, heat shaping; S7, after-finishing. In the second step, a desizing mixed solution is prepared, and the desizing mixed solution is adopted for conducting desizing treatment on the gray cloth. In the third step, the preshaping temperature is 180-210 DEG C, the shaping time is 30-45 s, and the radial overfeed is 5-10%; in the fifth step, after the gray cloth treated in the fourth step is immersed in a dyeing solution, the temperature is increased to 80-90 DEG C, the constant temperature is kept for 20 min, heat preservation is conducted for45-60 min after the temperature continues to be increased to 125-135 DEG C, and then the gray cloth is cleaned with a cleaning solution. The process is suitable for dyeing pure polyester, ultra-fine polyester, polyester cotton and the like and has high sun resistance and high fastness, a dyed fabric can be used for a long time without fading or color losing, and the dyeing quality of the fabric isimproved.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing technology, and in particular relates to a dyeing and finishing technology of acid dyes with high light fastness. Background technique [0002] The colorful silk is the crystallization of exquisite dyeing and finishing technology. The printing process plays an important role in the production process of silk. Because only by using the dyeing and finishing technology, we can perfectly reproduce our favorite colors and patterns on the blank, so that the fabric is more artistic. [0003] The dyeing and finishing process is to use the dyeing and finishing technology to perfectly reproduce our favorite colors and patterns on the blank, so that the fabric is more artistic. The process mainly includes four processing procedures of raw silk and fabric refining, dyeing, printing and finishing. [0004] However, the fabrics dyed and finished by traditional techniques often have low fastness ...

Claims

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Application Information

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IPC IPC(8): D06P1/39D06P1/16D06L1/14
Inventor 徐名毅徐井
Owner 浙江名毅新能源股份有限公司
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