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Polyester-cotton disperse dye, and reactive dye one-bath process dyeing method

A technology of disperse dyes and reactive dyes, applied in the field of dyeing, can solve the problem of no disperse dye capsules/reactive dyes, etc., and achieve the effects of excellent light fastness, reduced interference and good reproducibility

Active Publication Date: 2016-12-21
ANHUI YAYUAN PRINTING & DYEING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no particularly suitable process for the one-bath dyeing of disperse dye capsules / reactive dyes for polyester-cotton fabrics

Method used

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  • Polyester-cotton disperse dye, and reactive dye one-bath process dyeing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In this embodiment, a polyester-cotton disperse dye and reactive dye one-bath dyeing process includes: preparing a dye solution at room temperature, adjusting the pH of the dye solution to 4, immersing the polyester cotton in accordance with the bath ratio of 1:40, and using 2°C / min The temperature was raised to 105°C at a rate of 10 minutes, and then the temperature was raised to 130°C at a rate of 2°C / min, and kept at a temperature of 45 minutes. ℃, wash at 25℃ for 5 minutes, use 3g / L NP-10 and 1g / L soda ash to wash at 100℃ for 5 minutes, then wash at 80℃ for 5 minutes, and dry;

[0020] Wherein, the dyeing solution includes: reactive black G 0.5% owf, anhydrous sodium sulfate 40g / L, pH buffer 1.5g / L, disperse dye microcapsules 5% owf, dyeing auxiliary 0.1g / L; The preparation method of the dye microcapsules comprises: adding disperse yellow brown XF and chitosan to the acetic acid solution with a concentration of 0.5wt%, stirring evenly, adding liquid paraffin and Twe...

Embodiment 2

[0022] In this embodiment, a polyester-cotton disperse dye and reactive dye one-bath dyeing process includes: preparing a dye solution at room temperature, adjusting the pH of the dye solution to 6, immersing the polyester cotton in accordance with the bath ratio of 1:10, and using 3°C / min Raise the temperature to 95°C at a rate of 15 minutes, then raise the temperature to 150°C at a rate of 1°C / min, keep it at a temperature of 35 minutes, then filter the dye solution to isolate the disperse dye microcapsules and continue dyeing for 25 minutes, then cool down to 95°C at a rate of 1.5°C / min. ℃, wash at 15℃ for 15min, use 1g / L NP-10 and 3g / L soda ash to wash at 95℃ for 15min, then wash at 60℃ for 20min, and dry;

[0023] Wherein, the dye solution includes: reactive red C-XDR 1.5% owf, anhydrous sodium sulfate 30g / L, pH buffer 3.5g / L, disperse dye microcapsules 0.5% owf, dyeing auxiliary 3g / L; The preparation method of disperse dye microcapsules comprises: adding disperse crimson...

Embodiment 3

[0025] In this embodiment, a polyester-cotton disperse dye and reactive dye one-bath dyeing process includes: preparing a dye solution at room temperature, adjusting the pH of the dye solution to 5, immersing the polyester cotton in accordance with the bath ratio of 1:25, and using 2.5°C / min Raise the temperature to 100°C at a rate of 12 minutes, then raise the temperature to 140°C at a rate of 1.5°C / min, keep it at a temperature of 40 minutes, then filter the dye solution to isolate the disperse dye microcapsules and continue dyeing for 20 minutes, then cool down to 90 at a rate of 2°C / min. ℃, wash at 20℃ for 10min, use 2g / L NP-10 and 2g / L soda ash to wash at 98℃ for 10min, then wash at 70℃ for 10min, and dry;

[0026] Wherein, the dyeing solution includes: active orange C-3R 1% owf, anhydrous sodium sulfate 35g / L, pH buffer 2.5g / L, disperse dye microcapsules 2% owf, dyeing auxiliary 1g / L, the The preparation method of disperse dye microcapsules comprises: adding disperse blu...

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Abstract

The invention discloses a polyester-cotton disperse dye, and a reactive dye one-bath process dyeing method. The reactive dye one-bath process dyeing method comprise following steps: a dyeing solution is prepared at normal temperature; pH value of the dyeing solution is adjusted to 4 to 6; polyester-cotton fabric is immersed; the temperature is increased to 95 to 105 DEG C at a rate of 2 to 3 DEG C / min, and then is increased to 130 to 150 DEG C at a rate of 1 to 2 DEG C / min; suction filtration of the dyeing solution and isolation of disperse dye microcapsules are carried out, and continuous dyeing is carried out for 15 to 25min; the temperature is reduced to 85 to 95 DEG C at a rate of 1.5 to 2.5 DEG C / min; and primary water washing, soaping, afterwashing, and drying are carried out. The dyeing solution comprise, 0.5 to 1.5%owf of a reactive dye, 30 to 40g / L of anhydrous sodium sulfate, 1.5 to 3.5g / L of a pH buffering agent, 0.5 to 5%owf of disperse dye microcapsule, and 0.1 to 3g / L of a dyeing auxiliary. The reactive dye one-bath process dyeing method is simple; period is short; fixation rate is high; and levelling properties are excellent.

Description

technical field [0001] The invention relates to the technical field of dyeing, in particular to a one-bath dyeing process of polyester-cotton disperse dyes and reactive dyes. Background technique [0002] The conventional dyeing method of polyester-cotton blended fabrics is the two-bath method of polyester first and then cotton. This process dyes polyester and cotton with high color fixation and fastness. However, this process takes a long time (7h) in wet processing and low production efficiency. , water, electricity, and steam consumption are large, and sewage discharge is large. In order to simplify the traditional two-bath dyeing process of polyester and cotton, a dispersion / reactive one-bath dyeing process was developed. Compared with the two-bath method, this process shortens the dyeing cycle, reduces the process time to 5 hours, and improves production efficiency. It is still necessary to use a large amount of dyeing auxiliaries to cooperate with dyeing, and there is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/16D06P1/673D06P3/872D06L1/16B01J13/14
CPCB01J13/14D06L1/16D06P1/16D06P1/38D06P1/6735D06P3/004D06P3/008D06P3/8252
Inventor 潘学东
Owner ANHUI YAYUAN PRINTING & DYEING CO LTD
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