One-bath one-step dyeing method for dralon/cotton blended fabric

A dyeing method and cotton blending technology, which is applied in the field of dyeing and finishing, can solve problems such as affecting dyed fabrics, reducing dye uptake rate, and reducing dispersion, so as to prevent precipitation from reaction, solve the problem of difference in dyeing conditions, and reduce environmental pollution. small effect

Inactive Publication Date: 2015-04-08
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the anti-precipitation agent used in this patent is compounded by anionic aromatic sulfonate and nonionic polyoxyethylene ether surfactant, it is through the combination of anionic aromatic sulfonate and cationic dye and nonionic The dispersing effect of polyoxyethylene ether surfactants can alleviate the precipitation caused by the combination of cationic dyes and anionic reactive dyes, but when the dyeing temperature is higher than the cloud point of nonionic surfactants, the dispersing effect is reduced and still occurs Precipitation of dyes; in addition, the addition of anti-precipitation agents in the dye bath will affect the shade of dyed fabrics and reduce the dye uptake rate

Method used

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  • One-bath one-step dyeing method for dralon/cotton blended fabric
  • One-bath one-step dyeing method for dralon/cotton blended fabric
  • One-bath one-step dyeing method for dralon/cotton blended fabric

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The process of dyeing cotton fibers with neutral color-fixing reactive dyes: Dissolve the reactive dyes in warm water at about 40°C to prepare a dye solution, stir well, then adjust the pH value to 7 with a buffer solution, put the fabric into the neutral salt, and level dye In the dye solution of the dyeing agent, the dyeing bath ratio is 1:30, and then the temperature is raised to 80°C at a heating rate of 2°C / min, and then to 100°C at a heating rate of 1°C / min, and kept for 60 minutes, and then washed with water and soaped , wash, tumble dry. The dye formula is as follows:

[0036] Neutral color-fixing reactive dye Argazol Red NF-3B 2.5% o.w.f,

[0037] Yuanmingfen 25g / L,

[0038] JFC 05g / L.

Embodiment 2

[0040] The process of dyeing cotton fibers with neutral color-fixing reactive dyes: Dissolve the reactive dyes in warm water at about 40°C to make a dye solution, stir well, then adjust the pH value to 7 with buffer solution, and put the fabric into the dye solution containing leveling agent In the process, the dyeing bath ratio is 1:30, and then the temperature is raised to 80°C at a heating rate of 2°C / min, and then to 100°C at a heating rate of 1°C / min, and kept for 60 minutes. After the end, washing, soaping, washing, and drying Dry. The dye formula is as follows:

[0041] Neutral color-fixing reactive dye Argazol Red NF-3B 2.5% o.w.f

[0042] JFC 0.5g / L.

Embodiment 3

[0044] The process of dyeing cotton fibers with neutral color-fixing reactive dyes: Dissolve the reactive dyes in warm water at about 40°C to prepare a dye solution, stir well, then adjust the pH value to 7 with a buffer solution, put the fabric into the neutral salt, and level dye In the dye solution of the dyeing agent, the dyeing bath ratio is 1:30, and then the temperature is raised to 80°C at a heating rate of 2°C / min, and then to 110°C at a heating rate of 1°C / min, and kept for 60 minutes, and then washed with water and soaped , wash, tumble dry. The dye formula is as follows:

[0045] Neutral color-fixing reactive dye Argazol Red NF-3B 2.5% o.w.f,

[0046] Yuanmingfen 25g / L,

[0047] JFC 0.5g / L.

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Abstract

The invention relates to a one-bath one-step dyeing method for a dralon/cotton blended fabric. The method comprises the following steps: impregnating and dyeing the dralon/cotton blended fabric by adopting a neutral bath fixation reactive dye and a disperse type cationic dye; putting the dralon/cotton blended fabric into a solution with a surfactant for pre-treatment; then, soaking in a bleaching agent solution for bleaching treatment; then, dissolving the reactive dye and the cationic dye with warm water at 40 DEG C to prepare a dye liquid; fully stirring, adjusting the pH value to 4-8.5 by using a buffer liquid; putting the fabric into the dye liquid; controlling the dye bath ratio at 1: 10 to 1: 100; then, controlling temperature rise and insulation for 10-90 minutes; and then washing, soaping and drying. Compared with the prior art, the method can be used for solving the problem that the reactive dye and the cationic dye cannot be in a same bath as negative and positive charges of the reactive dye and the cationic dye react and also solving the problem of dyeing condition difference between the reactive dye and the cationic dye.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing, and in particular relates to a one-bath and one-step dyeing method for velvet / cotton blended fabrics. Background technique [0002] Acrylic fiber has the characteristic of resembling wool, and due to the strengthening of people's awareness of animal protection, this performance is unmatched by other synthetic fibers, thus establishing the unique advantages of the application of acrylic fiber. In recent years, with the continuous development of the economy, people's requirements for textile fabrics have become higher and higher. Traditional acrylic fibers can no longer meet the needs of consumers. The domestic market has a demand for acrylic differentiated fibers with more excellent properties. Every day. Recently, the Dralon fine-denier special-shaped acrylic fiber developed and launched in Germany, which is spun by acrylic dry spinning technology, has a smooth surface and a dumbbel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/16D06P1/673D06P3/872D06P5/22D06L3/02D06L4/12D06L4/13
Inventor 沈勇周月红王黎明张惠芳茅燕华
Owner SHANGHAI UNIV OF ENG SCI
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