Cellulosic fiber fabric reactive dye salt-free deep-color dyeing method

A cellulose fiber and reactive dye technology, applied in dyeing method, fiber treatment, plant fiber and other directions, can solve the problems of low utilization rate of dyes, heavy burden of dyeing wastewater treatment, large amount of salt, etc., achieving obvious effect and affordable cost. Control, easy to operate effects

Inactive Publication Date: 2013-05-01
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dyeing with reactive dyes has a series of problems such as low dye utilization rate, large amount of salt, and heavy burden of dyeing wastewater treatment. Therefore, promoting low-salt or salt-free dyeing technology of reactive dyes has become an inevitable trend to meet environmental protect

Method used

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  • Cellulosic fiber fabric reactive dye salt-free deep-color dyeing method
  • Cellulosic fiber fabric reactive dye salt-free deep-color dyeing method
  • Cellulosic fiber fabric reactive dye salt-free deep-color dyeing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Prepare modification solution (bath ratio 1:10, cationic modifier 30g / L), heat up to 60°C, add cotton fabric, stir for 5-15min, add alkali agent 15g / L, stir for 15-30min, wash with water, dry .

[0056] Prepare dye solution (bath ratio 1:10, ED-Q black 3.7% owf, Kehuasu 3RS yellow 0.44%owf, Kehuasu 3BSN red 0.19%owf), leveling agent O-250.5g / L, heat up to 60 ℃, add the modified cotton fabric, stir and dye for 20~30min, add 2g / L substitute alkali, stir and keep warm for dyeing for 30~45min, cool down to room temperature at 2~5℃ / min, soap wash (neutral soap flakes 2g / L L, soda ash 2g / L, 95°C, 10min, liquor ratio 1:20), washed with water, dried, and tested for performance (results are shown in Table 1).

[0057] Table 1

[0058]

Embodiment 2

[0060] Prepare modification solution (bath ratio 1:10, cationic modifier 45g / L), heat up to 60°C, add cotton fabric, stir for 5-15min, add alkali agent 15g / L, stir for 15-30min, wash with water, dry .

[0061] Prepare dye solution (bath ratio 1:10, ED-Q black 3.7% owf, Kehuasu 3RS yellow 0.44%owf, Kehuasu 3BSN red 0.19%owf), leveling agent O-250.2g / L, heat up to 60 ℃, add modified cotton fabric, stir and dye for 20~30min, add substitute alkali 2g / L, stir and keep warm for dyeing for 30~45min, cool down to room temperature at 2~5℃ / min, soap wash (neutral soap flakes 2g / L, Soda ash 2g / L, 95°C, 10min, liquor ratio 1:20), washed with water, dried, and tested for performance (results are shown in Table 2).

[0062] Table 2

[0063]

Embodiment 3

[0065] Prepare modification solution (bath ratio 1:10, cationic modifier 15g / L), heat up to 60°C, add modal fiber fabric, stir for 5-15min, add alkali agent 15g / L, stir for 15-30min, wash with water, dry Dry.

[0066] Prepare dye solution (bath ratio 1:10, ED-Q black 3.7% owf, Kehuasu 3RS yellow 0.44%owf, Kehuasu 3BSN red 0.19%owf), leveling agent O-251g / L, heat up to 60°C , adding modified modal fiber fabric, stirring and dyeing for 20~30min, adding 2g / L of substitute alkali, stirring and keeping warm for dyeing for 30~45min, cooling to room temperature at 2~5℃ / min, soaping (neutral soap flakes 2g / L, Soda ash 2g / L, 95°C, 10min, liquor ratio 1:20), washed with water, dried, and tested for performance (results are shown in Table 3).

[0067] table 3

[0068]

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Abstract

The invention relates to a cellulosic fiber fabric reactive dye salt-free deep-color dyeing method, which comprises the following steps: (1) preparing a modifier aqueous solution, increasing the temperature to 60-80 DEG C, adding a test sample, stirring, adding sodium hydroxide, stirring, washing and drying to obtain a modifier test sample; and (2) adding a reactive dye and a levelling agent, increasing the temperature to 60-80 DEG C, adding the modifier test sample, dyeing for 20-30 minutes in a stirring manner, adding substitution alkali, dyeing for 30-45 minutes in a stirring and thermal insulation manner, decreasing the temperature to the room temperature, soaping, washing and oven drying. According to the invention, the modifier is used for modifying cellulosic fibers, so that the repulsive force between dye anions and fibers can be reduced, the purpose of fabric reactive dye salt-free dyeing can be achieved, the method is simple and convenient to operate, the effect is obvious, no additional equipment is required, and the cost is controllable.

Description

technical field [0001] The invention belongs to the field of cellulose fiber dyeing methods, in particular to a salt-free dyeing method of cellulose fiber fabrics with reactive dyes. Background technique [0002] The annual water consumption of my country's textile industry exceeds 10 billion tons, and its wastewater discharge ranks sixth among all industries in the country. Among them, the printing and dyeing industry is also a major wastewater discharger in the textile industry. About 4 million tons of wastewater are discharged every day. The government needs to spend a lot of money on sewage treatment every year. Promoting energy conservation and emission reduction policies is an inevitable choice for building a resource-saving and environment-friendly society. The composition of printing and dyeing wastewater varies significantly depending on the production process. Among them, there are two main sources of reactive dye dyeing wastewater. One is that the hydrolysis reac...

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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IPC IPC(8): D06M13/463D06P1/38D06P3/66D06M101/06
Inventor 蔡再生王鹏朱建庆黄敏明任建祥沈江锋
Owner DONGHUA UNIV
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