Cotton fiber based non-reactive type modified natural dye staining method

A non-reactive, natural dye technology, applied in the field of natural dye dyeing, can solve the problems of uneven modification of cotton fabrics, poor color fastness, fiber whiteness, strength and moisture absorption performance, etc., to achieve good whiteness, K The effect of improved /S value, good levelness and color fastness

Inactive Publication Date: 2014-05-28
HAIAN COUNTY FUXING BLEACHING & DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, natural dyes usually have high dye uptake and color fastness on protein fibers such as silk and wool, but low dye uptake and poor color fastness on cotton fibers. Even if they are treated with mordants, they can only make its slightly improved
Moreover, most of the traditional natural dye mordants are heavy metal salts, which are not only unfavorable to the environment, but also difficult to control the shade stably, and are not suitable for mass production applications
[0003] The cationic modification of existing cotton fabrics is one of the effective methods to solve the low dyeing rate and poor color fastness of natural dyes
At present, most cotton fabric cationization reagents have relatively large molecular weight, and most of them are reactive compounds, which can easily cause uneven modification of cotton fabrics, and also have a certain degree of influence on the whiteness, strength and hygroscopicity of fibers.

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

[0012] Embodiment one: select all-cotton combed double-sided knitted fabrics, copper chlorophyllin sodium salt natural dye; the dyeing method based on cotton fiber non-reactive modified natural dye comprises the following steps:

[0013] (1) For the pretreatment of all-cotton combed double-sided knitted fabrics, a 1g / L detergent is prepared at a bath ratio of 1:50, wherein, in this embodiment, 209 detergent is used, and the cotton combed double-sided Put the knitted fabric into it, wash it with clear water at room temperature, and dry it; in this embodiment, impurities such as dirt and grease on the cotton fabric can be removed by cleaning;

[0014] (2) Non-reactive modification treatment of cotton combed double-sided knitted fabrics, the pre-treated cotton combed double-sided knitted fabrics in the step (1) are placed in a modifier of 2% (o.w.f) In the process, the temperature was raised to 60°C, the holding time was 10 minutes, the bath ratio was 1:30, and then the cotton co...

Embodiment 2

[0016] Embodiment two: select all-cotton combed double-sided knitted fabric, gardenia yellow natural dyestuff, the natural dyestuff dyeing method based on cotton fiber non-reactive type modification, comprises the following steps:

[0017] (1) For the pre-treatment of cotton combed double-sided knitted fabrics, prepare 1.5g / L detergent according to the bath ratio of 1:55, put the cotton combed double-sided knitted fabrics into it, and wash at room temperature Wash with clear water and dry; Wherein, the present embodiment adopts 209 cleaning agents, and impurities such as dirt and grease on the cotton fabric can be removed by cleaning;

[0018] (2) Non-reactive modification treatment of cotton combed double-sided knitted fabrics, the pre-treated cotton combed double-sided knitted fabrics in the step (1) are placed in a modifier of 6% (o.w.f) In the process, the temperature was raised to 75°C, the holding time was 30 minutes, the bath ratio was 1:40, and then the cotton fabric w...

Embodiment 3

[0020] Embodiment three: select all-cotton combed double-sided knitted fabric, carmine natural dyestuff, the natural dyestuff dyeing method based on cotton fiber non-reactive type modification, comprises the following steps:

[0021] (1) For the pretreatment of cotton combed double-sided knitted fabrics, prepare 2g / L detergent according to the bath ratio of 1:60, put the cotton combed double-sided knitted fabrics into it, and wash with Wash with clear water and dry; the present embodiment adopts 209 cleaning agent, and impurities such as dirt and grease on the cotton fabric can be removed by cleaning;

[0022] (2) Non-reactive modification treatment of cotton combed double-sided knitted fabrics, the pre-treated cotton combed double-sided knitted fabrics in the step (1) are placed in a modifier of 10% (o.w.f) In the process, the temperature was raised to 90°C, the holding time was 50 minutes, the bath ratio was 1:50, and then the cotton fabric was taken out, rinsed with water, ...

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 relates to the field of textile dye staining technology, in particular to a cotton fiber based non-reactive type modified natural dye staining method. The staining method mainly comprises the steps of pretreatment of a cotton fabric, non-reactive type modified treatment of the cotton fabric and staining treatment of the modified cotton fabric, wherein cationic compound modifier is adopted to modify the cotton fabric in the step of the non-reactive type modified treatment of the cotton fabric, so that the modified cotton fabric can still have good whiteness, high strength and good moisture absorption performance; and the K/S value of the stained cotton fabric can be greatly improved, and good leveling property and color fastness are achieved.

Description

technical field [0001] The invention relates to the technical field of textile dyeing, in particular to a natural dyeing method based on non-reactive modification of cotton fibers. Background technique [0002] At present, natural dyes usually have high dye uptake and color fastness on protein fibers such as silk and wool, but low dye uptake and poor color fastness on cotton fibers. Even if they are treated with mordants, they can only make It's slightly improved. Moreover, most of the traditional natural dye mordants are heavy metal salts, which are not only unfavorable to the environment, but also difficult to control the shade stably, and are not suitable for mass production applications. [0003] The cationic modification of existing cotton fabrics is one of the effective methods to solve the low dyeing rate and poor color fastness of natural dyes. At present, most cotton fabric cationization agents have relatively high molecular weight, and most of them are reactive c...

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): D06P3/60D06P1/34D06P1/44
Inventor 杨瑞平
Owner HAIAN COUNTY FUXING BLEACHING & DYEING
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