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Dyeing method of cellulosic fiber fabric

A technology of cellulose fiber and dyeing method, which is applied in the field of dyeing of cellulose fiber fabrics, can solve the problems of water pollution, inorganic salt discharge, etc., and achieve the effects of improving washing, reducing discharge, and high color fastness

Inactive Publication Date: 2016-05-25
FOSHAN JUCHENG BIOCHEM TECH RES & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The treatment of inorganic salts and alkalis has always been a problem that plagues the industry. A large amount of inorganic salts that are neither recyclable nor degradable are discharged into rivers and lakes, seriously polluting water quality. Due to the high permeability of salt, the surrounding soil is salinized and becomes alkaline. Very difficult problems in environmental protection

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for dyeing cellulose fiber fabrics, comprising the steps of:

[0023] (1) Pretreatment: immerse the cellulose fiber fabric in the bottom bleaching container and carry out the bottom bleaching treatment. In the bottom bleaching container, it is a mixed solution of pure water, hydrogen peroxide, soda ash and anti-wrinkle agent. The mass percentages of hydrogen peroxide, soda ash and anti-wrinkle agent are respectively 6%, 5%, 5%, the fabric is soaked in the bottom float container for 40min;

[0024] (2) Modification of cellulose fiber fabric: the mass ratio of cationic modifier to cellulose fiber fabric is 1.2:50 to get cationic propylene-based copolymer modifier to form a concentration of 4g / L cationic modifier aqueous solution, Soak the cellulose fiber fabric after step (1) bleaching in the aqueous solution of cationic propylene-based copolymer modifier, soaking time 20min;

[0025] (3) Washing: the cellulose fiber fabric soaked in step (2) is rinsed with larg...

Embodiment 2

[0030] A method for dyeing cellulose fiber fabrics, comprising the steps of:

[0031] (1) Pretreatment: immerse the cellulose fiber fabric in the bottom bleaching container and carry out the bottom bleaching treatment. In the bottom bleaching container, it is a mixed solution of pure water, hydrogen peroxide, soda ash and anti-wrinkle agent. The mass percentages of hydrogen peroxide, soda ash and anti-wrinkle agent are respectively 8%, 4%, 5%, the fabric is soaked in the bottom float container for 35min;

[0032] (2) Modification of cellulose fiber fabric: the mass ratio of cation modifier and cellulose fiber fabric is 1.5:50 to get epoxy compound to be made into the cationic modifier aqueous solution that concentration is 4g / L, step (1 ) Soak the cellulose fiber fabric after bleaching in an aqueous solution of epoxy compounds for 20 minutes;

[0033] (3) Washing: the cellulose fiber fabric soaked in step (2) is rinsed with large water flow at room temperature;

[0034] (4) ...

Embodiment 3

[0038] A method for dyeing cellulose fiber fabrics, comprising the steps of:

[0039] (1) Pretreatment: immerse the cellulose fiber fabric in the bottom bleaching container and carry out the bottom bleaching treatment. In the bottom bleaching container, it is a mixed solution of pure water, hydrogen peroxide, soda ash and anti-wrinkle agent. The mass percentages of hydrogen peroxide, soda ash and anti-wrinkle agent are respectively 10%, 4%, 4%, the fabric is soaked in the bottom float container for 50min;

[0040] (2) Modification of cellulose fiber fabric: the mass ratio of cation modifier and cellulose fiber fabric is 1:50 to get the natural cation modifier to make a concentration of 3g / L cationic modifier aqueous solution, the step ( 1) Soak the cellulose fiber fabric after bleaching in the aqueous solution of natural cationic modifier for 20 minutes;

[0041] (3) Washing: the cellulose fiber fabric soaked in step (2) is rinsed with large water flow at room temperature;

...

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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PUM

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Abstract

The invention discloses a dyeing method of a cellulosic fiber fabric. The dyeing method comprises the following steps: (1) pre-treating; (2) modifying the cellulosic fiber fabric; (3) washing with water; (4) dyeing; (5) softening; and (6) post-treating. With the adoption of the dyeing method, the cellulosic fiber fabric is modified by adopting a cation modifying agent, and the surface performance of the fabric is changed; the dyeing rate and fixation rate of various types of anion dyes are greatly improved; an inorganic salt is not used in a dyeing process and the emission amount of printing and dyeing wastewater is reduced; and a medium-temperature type active dye is used so that the dyeing is uniform and the color fastness is relatively high.

Description

technical field [0001] The invention relates to a dyeing process, in particular to a dyeing method for cellulose fiber fabrics. Background technique [0002] Cellulose fiber is the textile fiber with the largest output in the world. Among them, cotton fiber, as a natural cellulose fiber, is widely used due to its good water absorption, hygroscopicity, easy dyeing, soft hand feeling, moderate strength, and comfortable wearing. in life. Cellulose fibers are negatively charged in the dye bath, while most of the dyes used to dye cotton fibers are anionic. Due to the electrostatic repulsion, the dyeing of the dye is inhibited. In order to reduce the electrostatic repulsion, a large amount of neutral electrolyte needs to be added to the dye bath. To improve the dye uptake rate, the amount of salt used is different according to the structure and color of the dye. Even so, the dye uptake and fixation rates are still low, especially for reactive dyes. This not only increases the p...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/52D06P1/44D06P1/66D06P1/38D06P3/66D06P5/02
CPCD06P1/5207D06P1/38D06P1/445D06P1/66D06P3/66D06P5/02
Inventor 不公告发明人
Owner FOSHAN JUCHENG BIOCHEM TECH RES & DEV CO LTD
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