Disperse dye capsule/active dye polyester-cotton fabric one-bath process dyeing technology

A technology of reactive dyes and disperse dyes, which is applied in the textile field and can solve the problems of disperse dye capsules/reactive dyes, etc.

Inactive Publication Date: 2015-01-14
WUXI XINGLIN DYEING ENVIRONMENTAL PROTECTION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no particularly suitable process for the one-bat

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A disperse dye capsule / reactive dye polyester cotton one-bath dyeing process is characterized in that:

[0031] The technological process is as follows: prepare a dyeing bath (disperse blue 79 microcapsules, reactive blue NF-BG, pH buffer) at room temperature, put in polyester cotton, heat up to 80°C at a rate of 2.5°C / min, keep warm for 10 minutes, and then heat at 1.5°C Heat up to 130°C at a rate of 2°C / min, keep warm for 30 minutes, then isolate the microcapsules and continue dyeing for 20 minutes, then cool down to 90°C at a rate of 2°C / min for washing, soaping, washing with water, and soaping for 20 minutes;

[0032]The prescription is: reactive blue NF-BG 2% owf, anhydrous sodium sulfate 40g / L, pH buffer 2g / L, disperse blue 79 microcapsules 2% owf, liquor ratio 1:20.

Embodiment 2

[0034] A disperse dye capsule / reactive dye polyester cotton one-bath dyeing process is characterized in that:

[0035] The technological process is as follows: prepare a dyeing bath (disperse blue 79 microcapsules, reactive blue NF-BG, pH buffer) at room temperature, put in polyester cotton, heat up to 75°C at a rate of 2°C / min, keep warm for 8 minutes, and then heat at 1°C Raise the temperature to 120°C at a rate of 1.5°C / min, keep it warm for 25 minutes, then isolate the microcapsules and continue dyeing for 15 minutes, then cool down to 85°C at a rate of 1.5°C / min. Wash, soap, wash with water, and soap for 15 minutes;

[0036] The prescription is: reactive blue NF-BG 1.5% owf, anhydrous sodium sulfate 35g / L, pH buffer 1.5g / L, disperse blue 79 microcapsules 1.5% owf, liquor ratio 1:18.

Embodiment 3

[0038] A disperse dye capsule / reactive dye polyester cotton one-bath dyeing process is characterized in that:

[0039] The process flow is: prepare a dyeing bath (disperse blue 79 microcapsules, reactive blue NF-BG, pH buffer) at room temperature, put in polyester cotton, heat up to 75-85°C at a rate of 2-3°C / min, and keep warm for 8- 12min, then heat up to 120-140°C at a rate of 1-2°C / min, keep warm for 25-35min, then isolate the microcapsules and continue dyeing for 15-25min, then cool down to 85-95°C at a rate of 1.5-2.5°C / min Washing, soaping, washing, soaping 15-25min;

[0040] The prescription is: reactive blue NF-BG 2.5% owf, anhydrous sodium sulfate 45g / L, pH buffer 2.5g / L, disperse blue 79 microcapsules 2.5% owf, liquor ratio 1:22.

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PUM

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Abstract

The invention relates to a disperse dye capsule/active dye polyester-cotton fabric one-bath process dyeing technology. Research on the disperse dye capsule/active dye polyester-cotton fabric one-bath process dyeing technology is performed from the points of selection of an active dye influencing the dyeing effect of the polyester-cotton fabric one-bath process, the bath ratio, the heating speed, the warm-keeping time and other factors, and an optimum dyeing technology is obtained. Compared with a routine one-bath method, under the premise of avoiding a reducing cleaning process, the obtained color is deeper than that of dyed fabric by using a routine method employing the reducing cleaning process, and the disclosed technology has the biggest advantage of preventing reducing cleaning from destroying the active dye; and the dry/wet friction fastness, and the staining fastness and the discoloring and fading grade at 60 DEG C of the dyed fabric are relatively high, and the grades are all 4 grade or more. The absorbance of a dyeing raffinate from which the microcapsule is filtered off is about half of the absorbance of a routine one-bath method, and the chroma of the raffinate is obviously reduced. The technology is simple, relatively short in time, relatively small in chroma of dyeing wastewater and relatively small in water consumption.

Description

technical field [0001] The invention relates to the textile field, in particular to a disperse dye capsule / reactive dye polyester cotton one-bath dyeing process. Background technique [0002] Polyester-cotton blended fabric not only has the function of moisture absorption and breathability of cellulose fiber, but also has good shape retention and color fastness of polyester fiber, so it is favored by consumers and occupies an important position in various clothing fabrics. [0003] The main processes for disperse / reactive dyeing of conventional polyester-cotton blended fabrics are disperse / reactive two-bath method, disperse / reactive one-bath two-step dyeing process and disperse / reactive one-bath one-step dyeing process. These processes have long dyeing time and low production efficiency. , water, electricity, steam consumption is large, and the amount of sewage discharge is large, all of which require reduction cleaning, and reduction cleaning will damage reactive dyes. [...

Claims

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Application Information

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IPC IPC(8): D06P3/872
Inventor 俞国兴
Owner WUXI XINGLIN DYEING ENVIRONMENTAL PROTECTION EQUIP
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