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High-performance fabric self-pressurization carrier dyeing method

A carrier dyeing, high-performance technology, applied in the field of textile printing and dyeing, can solve the problems of unfavorable fiber mechanical properties, dye structure properties, high-performance fabrics that are difficult to dye bright colors, and damage to the dye structure, so as to achieve good dyeing effect, change surface activity, The effect of increasing porosity

Inactive Publication Date: 2019-08-09
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: high-temperature dyeing conditions destroy the dye structure, and it is difficult to dye bright colors in high-performance fabrics
The disadvantage is that the increase of pressure is obtained by increasing the temperature, further increasing the pressure will make the dyeing temperature too high, which is not conducive to the mechanical properties of the fiber and the structural properties of the dye.

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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  • High-performance fabric self-pressurization carrier dyeing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take 3g of meta-aramid fabric, use C.I.Disperse Red 54 as the dye, and prepare a dye liquor in a 400ml sealed and high-pressure dyeing cup with a volume of 1:20. The dye liquor contains N,N-dimethyl ethyl The amide mass percentage is 10%, the sodium chloride mass percentage is 5%, the ammonium bicarbonate mass percentage is 0.4%, the distilled water mass percentage is 84.55%, the dyestuff mass percentage is 0.05%, first sodium chloride and bicarbonate are mixed in distilled water Stir at 200 rpm for 3 minutes, fully dissolve the sodium chloride and ammonium bicarbonate, then add N,N-dimethylacetamide and dye, stir at 200 rpm for 3 minutes, mix the dye solution evenly, and finally Put the meta-aramid fabric into the dyeing cup, seal it tightly, raise the temperature to 70°C, and keep it warm for 60 minutes. After draining, washing and drying, the dyed meta-aramid fabric is obtained. The effect is shown in Table 1.

Embodiment 2

[0033] Take 3g of meta-aramid fabric, use C.I.Disperse Red 54 as the dye, and prepare a dye liquor in a 400ml sealed and high-pressure dyeing cup with a volume of 1:20. The dye liquor contains N,N-dimethyl ethyl The amide mass percentage is 30%, the sodium chloride mass percentage is 6%, the ammonium bicarbonate mass percentage is 1.7%, the distilled water mass percentage is 62.05%, and the dyestuff mass percentage is 0.25%, first sodium chloride and bicarbonate are mixed in distilled water Stir at 200 rpm for 3 minutes, fully dissolve the sodium chloride and ammonium bicarbonate, then add N,N-dimethylacetamide and dye, stir at 200 rpm for 3 minutes, mix the dye solution evenly, and finally Put the meta-aramid fabric into the dyeing cup, seal it tightly, raise the temperature to 80°C, keep it warm for 60 minutes, drain, wash, and dry to obtain the dyed meta-aramid fabric. The effect is shown in Table 1.

Embodiment 3

[0035]Take 3g of meta-aramid fabric, use C.I.Disperse Red 54 as the dye, and prepare a dye liquor in a 400ml sealed and high-pressure dyeing cup with a volume of 1:20. The dye liquor contains N,N-dimethyl ethyl The amide mass percentage is 50%, the sodium chloride mass percentage is 7%, the ammonium bicarbonate mass percentage is 3%, the distilled water mass percentage is 39.5%, the dyestuff mass percentage is 0.5%, first sodium chloride and bicarbonate ammonium in distilled water Stir at 200 rpm for 3 minutes, fully dissolve the sodium chloride and ammonium bicarbonate, then add N,N-dimethylacetamide and dye, stir at 200 rpm for 3 minutes, mix the dye solution evenly, and finally Put the meta-aramid fabric into the dyeing cup, seal it tightly, raise the temperature to 90°C, keep it warm for 60 minutes, drain, wash, and dry to obtain the dyed meta-aramid fabric. The effect is shown in Table 1.

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 high-performance fabric self-pressurization carrier dyeing method and belongs to the technical field of textile printing and dyeing. According to the method, carbon dioxideand ammonia gas generated by thermal decomposition of ammonium bicarbonate are utilized in the dyeing process of a high-performance fabric, the carbon dioxide enables the pressure intensity in a closed space of a dyeing cup to be increased, the solubility of the ammonia gas to rise and the amount of formed ammonia water to be increased, the polarity of the ammonia water is strong, the surface activity of fiber can be changed, and it is facilitated that the active chlorine generated by the complexation effect of N,N-dimethylacetamide and sodium chloride acts on the high-performance fiber, the hydrogen bonding force among macromolecular chains of the fiber is weakened, and the porosity of the fiber is improved. The N,N-dimethylacetamide has strong polarity under the low temperature dyeing condition of 70-90 DEG C, the dissolving concentration of dye can be effectively improved, the micelle concentration of the dye is reduced, the dye molecules are easy to adsorb and dye the high-performance fabric, and the dyeing efficiency of the high-performance fabric is effectively improved. In addition, the method can achieve a better dyeing effect at a relatively low dyeing temperature, and theproduction cost and the energy consumption are reduced.

Description

technical field [0001] The invention relates to a method for dyeing a high-performance fabric with a self-pressurized carrier, belonging to the technical field of textile printing and dyeing. Background technique [0002] There are many types of high-performance fibers, some of which have excellent mechanical properties, some have excellent flame retardancy and heat resistance, and some have excellent chemical resistance. With the requirements of the application, the demand for dyeing is more and more. At present, the commonly used high-performance fiber dyeing methods include liquid dyeing and carrier dyeing. Chinese Patent Publication No. CN104695239A, published on June 10, 2015, the name of the invention is a dyeing method for aramid fiber, the application discloses that the use of sodium chloride can enhance the color fixation of dyeing in the high temperature and high pressure carrier dyeing process In a permanent method, in the dyeing step of the application, sodium ...

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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IPC IPC(8): D06P1/16D06P1/649D06P1/673D06P3/02D06P3/26D06P3/54
CPCD06P1/16D06P1/6495D06P1/67333D06P1/6735D06P3/024D06P3/26D06P3/54
Inventor 盛丹徐卫林陈欣刘冰倩曹根阳王运利
Owner WUHAN TEXTILE UNIV
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