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Method for dyeing blended fabric of polysulfonamide and viscose glue

A technology for blended fabrics and dyeing methods, applied in the directions of dyeing methods, textiles and papermaking, plant fibers, etc., can solve the problems of difficult aramid sulfone/viscose blended fabric dyeing, increase the complexity of the dyeing process, and environmental pollution, and achieve dyeing. Good fastness, short dyeing time and small damage

Active Publication Date: 2014-03-19
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For polysulfone fiber / viscose blended fabric, polysulfone fiber fabric has poor alkali resistance, and the presence of alkali will destroy the structure of the fiber and cause a decline in strength. Therefore, the existing reactive / disperse dye one-bath one-step dyeing process Difficult to dye sulfonamide / viscose blended fabrics
In addition, the addition of additives such as alkaline agents will more or less increase the complexity of the dyeing process and the waste liquid after dyeing will also cause certain pollution to the environment

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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  • Method for dyeing blended fabric of polysulfonamide and viscose glue
  • Method for dyeing blended fabric of polysulfonamide and viscose glue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A one-bath one-step dyeing method of reactive red / disperse dyes of sulfonamide / viscose blended fabrics comprises two steps of pretreatment and dyeing.

[0029] (1) Pretreatment of sulfonamide / viscose blended fabric

[0030] Aramid fiber / viscose blended fabric → pretreatment → washing → drying → hydrogen peroxide bleaching treatment? Washing → drying.

[0031] Among them, the ratio of sulfonamide / viscose blending is 50 / 50 respectively, and the pretreatment agent and hydrogen peroxide bleaching treatment solution all use water as the solvent, and their components are as follows:

[0032] a. Pretreatment solution: sodium dodecylbenzenesulfonate 2g / L, liquor ratio, 1:30.

[0033] b. Hydrogen peroxide bleaching treatment solution: 30% hydrogen peroxide, 20g / L; oxygen bleaching stabilizer sodium silicate, 1g / L; use sodium hydroxide to adjust the pH value to 10.5-11; liquor ratio, 1:30.

[0034] Specific operation: Place the sulfonamide / viscose blended fabric in a solution a...

Embodiment 2

[0040] A kind of polysulfonamide / viscose blended fabric reactive / disperse dye one-bath one-step dyeing method, comprises two steps of pretreatment and dyeing,

[0041] The pretreatment steps are the same as Example 1, but the blended spinning ratio of sulfonamide / viscose is 60 / 40.

[0042] (2) One-bath and one-step dyeing of reactive yellow / disperse red dyes of sulfonamide / viscose blended fabrics

[0043] Dyeing with reactive yellow / disperse red dyes, the dye solution components are as follows: reactive yellow (Argazol NF Yellow) dye concentration is 2.4% (owf), disperse red (Artelon AQE Red) dye concentration is 3.6% (owf ), the amount of carrier acetophenone is 12g / L, the amount of sodium sulfate is 20g / L, the pH of the dyeing bath is 7, the penetrant JFC and the leveling agent TOP are both 2g / L, and the liquor ratio is 1:30.

[0044] Specific operation: immerse the sulfonamide / viscose blended fabric with a blending ratio of 60 / 40 into the prepared active yellow / disperse re...

Embodiment 3

[0055] The dyeing method of sulfonamide / viscose blended fabrics is to select neutral bath color-fixing reactive / disperse dyes for dyeing in the same bath, including the following steps:

[0056] (1) Place the sulfonamide / viscose blended fabric in a solution with surfactants added. The blending ratio of the sulfone / viscose blended fabric is 50 / 50, and the amount of surfactant is 2g / L, selected from anion Surfactant sodium alkyl sulfonate, control the temperature at 90°C, wash and dry after treatment for 1 hour, then soak in bleach solution for bleaching treatment and wash and dry, the bleach in the bleach solution is sodium silicate Hydrogen peroxide, the concentration of hydrogen peroxide is 10g / L, the concentration of sodium silicate is 1g / L, the pH value of the bleach solution is 10, and the temperature is controlled at 90°C for 45 minutes during the bleaching process;

[0057] (2) Immerse the sulfonamide / viscose blended fabric processed through step (1) in the dye solution ...

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 relates to a method for dyeing a blended fabric of polysulfonamide and viscose glue, comprising selecting neutral bath dye fixation active / disperse dyes for one bath dyeing, adding the blended fabric of polysulfonamide and viscose glue into a solution with a surfactant, controlling the temperature at 90-100 DEG C, water-washing and drying after 30min-1h of treatment, then immersing the blended fabric of polysulfonamide and viscose glue into a bleaching agent solution for bleaching treatment, water-washing and drying, again immersing the blended fabric of polysulfonamide and viscose glue into a dye liquid containing a neutral salt, a carrier, a leveling agent, a high temperature dispersant, a reactive dye and a disperse dye, regulating a pH value at 4-9, and a bath ratio of 1:(10-100), controlling the temperature at 80-130 DEG C, carrying out dyeing treatment for the blended fabric of polysulfonamide and viscose glue for 30-90min, and water-washing, drying and soaping to complete dyeing. Compared with the prior art, the method provided by the invention has advantages of simple technology, short dyeing time, high efficiency, low energy consumption, and few amount of waste water discharge.

Description

technical field [0001] The invention relates to a method for dyeing blended fabrics, in particular to a method for dyeing sulfonamide / viscose blended fabrics. Background technique [0002] Aramid sulfone fiber is a high-performance synthetic fiber, which belongs to aromatic polyamide organic high-temperature-resistant materials. It has a special structure and excellent performance. , high temperature dimensional stability, and flame retardancy are superior to meta-aramid fibers, and also have good electrical insulation, radiation resistance and chemical stability. However, the supramolecular structure of polysulfone fibers has good three-dimensional regularity, the force between macromolecules and their aggregates is strong, and the crystallinity is high, so that polysulfone fibers have a high glass transition temperature, coupled with the hydrophobicity of the fibers, etc. It is difficult for the dye to enter the fiber under normal conditions, resulting in difficult dyeing...

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): D06P1/38D06P1/16D06P1/673D06P3/872D06M13/262D06M13/256D06L3/02D06M101/30D06M101/06D06L4/12D06L4/13
Inventor 沈勇李国春张惠芳王黎明茅燕华周月红
Owner SHANGHAI UNIV OF ENG SCI
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