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Fluorescein dyeing method for modified acrylic cotton blended fabric

A technology of modified acrylic fibers and dyeing methods, which can be applied in dyeing methods, textiles, papermaking, dry-cleaning fiber products, etc., and can solve the problems of non-industrialization, low whiteness value, failure to meet fluorescent chromaticity, brightness and color fastness standards and other problems to achieve the effect of fast speed and elimination of base discoloration

Inactive Publication Date: 2021-04-16
江苏翔鹰纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of dyeing method of fluorescent yellow of modified acrylic fiber cotton blended fabric, to solve the problem that the above-mentioned background technology proposes at present, adopt existing technology to carry out fluorescent yellow dyeing process to modified acrylic fiber cotton blended fabric, be easy to occur bleaching The discoloration of the fabric base and the low whiteness value will lead to the failure to meet the requirements of fluorescent chromaticity, brightness and color fastness standards during the test process, and the problem that it cannot be industrialized

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

[0030] The invention provides a technical solution: a fluorescent yellow dyeing method for a modified acrylic cotton blended fabric, comprising the following steps:

[0031] (1) Preparation of raw materials: blending modified polyacrylonitrile fibers with cotton fibers;

[0032] (2) Preparation of desizing solution: put hydrogen peroxide into water and stir, the concentration of hydrogen peroxide is 3g / L-5g / L;

[0033] (3) Desizing of raw materials: put the modified acrylic cotton blend into the prepared hydrogen peroxide alkaline solution for padding, and then steam for 2-3 minutes, which can promote the degradation of starch and polyvinyl alcohol, and at the same time The fabric has a certain bleaching effect;

[0034] (4) Preparation of bleaching solution: pH value 10, 35% concentration of hydrogen peroxide 10g / L, 37% concentration Na2SiO3, penetrating agent 3g / L, pH value 10.5, excess rate 80%;

[0035] (5) Bleaching: put the modified acrylic cotton blend into the bleach...

Embodiment 2

[0043] The invention provides a technical solution: a fluorescent yellow dyeing method for a modified acrylic cotton blended fabric, comprising the following steps:

[0044] (1) Preparation of raw materials: blending modified polyacrylonitrile fibers with cotton fibers;

[0045] (2) Preparation of desizing solution: put hydrogen peroxide into water and stir, the concentration of hydrogen peroxide is 3g / L-5g / L;

[0046] (3) Desizing of raw materials: put the modified acrylic cotton blend into the prepared hydrogen peroxide alkaline solution for padding, and then steam for 2-3 minutes, which can promote the degradation of starch and polyvinyl alcohol, and at the same time The fabric has a certain bleaching effect;

[0047] (4) Preparation of bleaching solution: pH value 10, 35% concentration of hydrogen peroxide 10g / L, 37% concentration Na2SiO3, penetrating agent 3g / L, pH value 10.5, excess rate 80%;

[0048] (5) Bleaching: put the modified acrylic cotton blend into the bleach...

Embodiment 3

[0056] The invention provides a technical solution: a fluorescent yellow dyeing method for a modified acrylic cotton blended fabric, comprising the following steps:

[0057] (1) Preparation of raw materials: blending modified polyacrylonitrile fibers with cotton fibers;

[0058] (2) Preparation of desizing solution: put hydrogen peroxide into water and stir, the concentration of hydrogen peroxide is 3g / L-5g / L;

[0059] (3) Desizing of raw materials: put the modified acrylic cotton blend into the prepared hydrogen peroxide alkaline solution for padding, and then steam for 2-3 minutes, which can promote the degradation of starch and polyvinyl alcohol, and at the same time The fabric has a certain bleaching effect;

[0060] (4) Preparation of bleaching solution: pH value 10, 35% concentration of hydrogen peroxide 10g / L, 37% concentration Na2SiO3, penetrating agent 3g / L, pH value 10.1, excess rate of 80%;

[0061] (5) Bleaching: put the modified acrylic cotton blend into the ble...

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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Abstract

The invention discloses a fluorescein dyeing method for a modified acrylic cotton blended fabric. The method comprises the following steps of preparing raw materials; blending a desizing solution; desizing the raw materials; preparing a bleaching solution; performing bleaching; washing with water; carrying out re-bleaching and secondary cleaning; performing primary dyeing; preparing a wetting agent and a sodium hydroxide solution; preparing dye liquor; and performing pad dyeing. According to the fluorescein dyeing method for the modified acrylic fiber cotton blended fabric, a bleaching treatment process is adopted, the phenomenon that a base of the bleached fabric changes color before dyeing is eliminated, the ground color of the modified acrylic fiber cotton blended fabric is whiter before dyeing; two different dyeing liquors are used for dyeing during dyeing; the modified acrylic fibers are dyed more uniformly and firmly by using cationic dye liquor; meanwhile, the cotton fibers are dyed by using the reducing dye, so that the soaked colors of the cotton fibers are firmer, color shedding is not easily caused, dyeing is performed in a pad dyeing manner, and redundant dye can be removed in the dyeing process, and the dye can be uniformly distributed on the fabric.

Description

technical field [0001] The invention relates to the technical field of dyeing modified acrylic cotton blended fabrics, in particular to a fluorescent yellow dyeing method for modified acrylic cotton blended fabrics. Background technique [0002] Acrylic fiber is a synthetic fiber made of polyacrylonitrile or an acrylonitrile copolymer with an acrylonitrile content greater than 85% (mass percentage). The performance of polyacrylonitrile fiber is very similar to that of wool, with good elasticity. It can keep 65%, fluffy, curly and soft, and its warmth retention is 15% higher than that of wool. It is called synthetic wool. Pure acrylonitrile fiber has a tight internal structure and poor wearing performance. For its performance, the second monomer improves elasticity and hand feeling, and the third monomer improves dyeability. [0003] Modified acrylic fiber is mainly obtained by dissolving the copolymer obtained by copolymerization of acrylonitrile and vinyl chloride in aceto...

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): D06P1/41D06P1/22D06P3/87D06L4/75D06L4/13D06L4/12D06L1/14
Inventor 江国兵王晓斌艾新峰
Owner 江苏翔鹰纺织科技有限公司
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