One-bath and one-step dyeing preparation method of brocade/cotton blended fabric acid dyes

A technology of blending acid dyes and cotton, which is applied in the field of textile chemistry and dyeing and finishing engineering, can solve the problems of not using cellulose fibers and poor directness, and achieve the effects of low cost, strong adaptability, great economic benefits and environmental protection benefits

Inactive Publication Date: 2018-02-02
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Acid dyes are generally not used in the dyeing of cellulose fibers because the directness of acid dyes to cellulose fibers is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Put 10kg nylon / cotton blended fabric in the dyeing machine, add 20g / L 3-chloro-2-hydroxypropyltrimethylammonium chloride and mix for 10min, then add 5g / L sodium hydroxide solution Continue to react for 50 minutes, take out the fabric and wash it with water, then treat it with 1 g / L acetic acid solution for 10 minutes, then rinse it with a large amount of water, and dry it at 80°C for 2 minutes to obtain a modified nylon / cotton blended fabric; the reaction bath ratio is 1:5 .

[0037] (2) the modified brocade / cotton blended fabric that step (1) obtains is mixed with weakly acidic scarlet E-R dyestuff of 2% (owf), 1g / L flat plus O, and adding NaAc-HAc to adjust the pH of the dyeing bath is 4.7, and carry out One-bath one-step dyeing method, dyeing at room temperature, then raising the temperature at a rate of 1°C / min to 90°C for 40 minutes, then draining, washing with hot water at 70°C, warm water at 50°C and cold water in turn, and then washing at 80°C , fix the col...

Embodiment 2

[0044] (1) Put 10kg nylon / cotton blended fabric in the dyeing machine, add 40g / L 3-chloro-2-hydroxypropyltrimethylammonium chloride and mix for 10min, then add 10g / L sodium hydroxide solution Continue to react for 50 minutes, take out the fabric and wash it with water, then treat it with 1.5g / L acetic acid solution for 10 minutes, then rinse it with a large amount of water, and dry it at 80°C for 2 minutes to obtain a modified nylon / cotton blended fabric; the reaction bath ratio is 1: 5.

[0045] (2) the modified brocade / cotton blended fabric that step (1) obtains is mixed with 4% (owf) C.I acid yellow 184 dyestuff, 1g / L Pingping plus O, adding NaAc-HAc to adjust the pH of the dye bath to be 4, and carry out One-bath one-step dyeing method, dyeing at room temperature, then raising the temperature at a rate of 0.5°C / min to 98°C for 40 minutes, then draining, washing with hot water at 70°C, warm water at 50°C and cold water in turn, and then washing at 80°C , fix the color with...

Embodiment 3

[0048] (1) Put 10kg nylon / cotton blended fabric in the dyeing machine, add 60g / L 3-chloro-2-hydroxypropyltrimethylammonium chloride and mix for 10min, then add 15g / L sodium hydroxide solution Continue to react for 50 minutes, take out the fabric and wash it with water, then treat it with 1.5g / L acetic acid solution for 10 minutes, then rinse it with a large amount of water, and dry it at 80°C for 2 minutes to obtain a modified nylon / cotton blended fabric; the reaction bath ratio is 1: 10.

[0049] (2) the modified nylon / cotton blended fabric that step (1) obtains is mixed with 6% (owf) C.I acid red 52 dyestuff, 1g / L Pingping plus O, adding NaAc-HAc to adjust the pH of the dye bath to be 4, and carry out One-bath one-step dyeing method, dyeing at room temperature, then raising the temperature at a rate of 1°C / min to 85°C for 35 minutes, draining, washing with hot water at 70°C, warm water at 50°C and cold water in turn, and then washing at 80°C , fix the color with 1g / L tannic...

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Abstract

The invention relates to a one-bath and one-step dyeing preparation method of brocade/cotton blended fabric acid dyes. The method includes the steps: mixing and reacting a brocade/cotton blended fabric and fiber modifying agents with quaternary ammonium groups, adding alkali solution to continue to react mixture, taking out the fabric, washing the taken fabric by the aid of water, treating the washed fabric by the aid of acid solution, and washing and drying the fabric to obtain a modified brocade/cotton blended fabric; mixing the modified brocade/cotton blended fabric, acid dyes and levelingagents, adding pH (potential of hydrogen) conditioning agents to adjust pH of dye bath to reach 3-5, performing one-bath and one-step dyeing, discharging liquid, and performing washing, color fixing and drying on the modified brocade/cotton blended fabric to obtain the dyed brocade/cotton blended fabric. A dyeing process is simple to operate, high in efficiency, high in device adaptability and lowin cost, the dyed blended fabric is good in union color property, bright in color and excellent in washing fastness and rubbing fastness, and the method has far-reaching influence on development of brocade/cotton blended fabric dyeing techniques.

Description

technical field [0001] The invention belongs to the technical field of textile chemistry and dyeing and finishing engineering, in particular to a preparation method for one-bath and one-step dyeing of nylon / cotton blended fabrics with acid dyes. Background technique [0002] Cellulose fiber is the most productive fiber type in the world. It has many excellent properties such as good hygroscopicity and easy dyeing, and most of them can be regenerated so that the pollution to the environment is small. It belongs to the category of renewable fibers. It has been used since the beginning of human civilization It is widely used and has always been loved by people. Among them, cotton is a kind of cellulose fiber, which is highly praised by consumers because of its wide range of sources and easy processing. Polyamide fiber, commonly known as nylon or nylon, is a fiber containing repeated amide groups in the main molecular chain. Nylon has many excellent properties and is loved by p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/39D06P3/852D06P5/22
CPCD06P1/39D06P3/8219D06P5/225
Inventor 蔡再生夏伟姚程健顾海张静章小勇
Owner DONGHUA UNIV
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