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Polyester cotton dispersing and reactive dye one bath process dyeing technology

A technology of reactive dyes and disperse dyes, applied in the field of dyeing, can solve the problems of COD load, excessive color floating, sewage discharge, etc., and achieve the effects of improving equipment utilization, full color, and improving worker productivity

Active Publication Date: 2017-05-31
宣城加特林机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the traditional dyeing process leads to many floating colors, it is inevitable to use a large amount of detergent, reducing agent, alkali agent, etc.
These auxiliaries are discharged into sewage after dyeing, causing serious COD load

Method used

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  • Polyester cotton dispersing and reactive dye one bath process dyeing technology
  • Polyester cotton dispersing and reactive dye one bath process dyeing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In this embodiment, a polyester-cotton disperse 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 at a bath ratio of 1:20, and using a temperature of 1.5° C. / min. Raise the temperature to 50°C, keep it for 10 minutes, then raise the temperature to 140°C at a rate of 3.5°C / min, keep it for 40 minutes, isolate the rare earth complexed microencapsulated disperse dye for 20 minutes, and cool down to 80°C at a rate of 1.5°C / min , initial washing, soaping, final washing, drying;

[0019] Wherein, the dyeing solution includes: reactive dye 2% owf, rare earth complex microencapsulated disperse dye 3.5% owf, Yuanming powder 10g / L, pH buffer 2.5g / L, organic phenol halide 0.2g / L, Organic fluorine surfactant 0.03g / L.

Embodiment 2

[0021] In this embodiment, a polyester-cotton disperse 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 at a bath ratio of 1:30, and using a temperature of 1° C. / min. Raise the temperature to 55°C, keep it warm for 8 minutes, then raise the temperature to 135°C at a rate of 4°C / min, keep it warm for 45 minutes, isolate the disperse dye microcapsules and continue dyeing for 15 minutes, cool down to 75°C at a rate of 2°C / min, at 25°C After washing with water for 5 minutes, soap at 95°C for 10 minutes, and the soaping agent used includes: NP-10 5g / L, soda ash 1g / L, then wash with water at 50°C for 5 minutes, and dry;

[0022] Wherein, the dyeing solution includes: reactive dye 3% owf, rare earth complex microencapsulated disperse dye 2% owf, sodium sulfate 15g / L, pH buffer 1.5g / L, 2,4,6-trichlorophenol 0.3g / L, organic fluorine surfactant 0.01g / L;

[0023] The...

Embodiment 3

[0025] In this embodiment, a polyester-cotton disperse 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 at a bath ratio of 1:10, and using a temperature of 2°C / min. Raise the temperature to 45°C, keep it warm for 12 minutes, then raise the temperature to 145°C at a rate of 3°C / min, keep it warm for 35 minutes, isolate the rare earth complexed microencapsulated disperse dye for 25 minutes, and cool down to 85°C at a rate of 1°C / min , after washing at 15°C for 15 minutes, soaping at 85°C for 25 minutes, and the soaping agent used includes: NP-10 1g / L, soda ash 2g / L, then washing at 40°C for 20 minutes, and drying;

[0026] Wherein, the dyeing solution includes: 1% owf of reactive dyes, 5% owf of rare earth complexed microencapsulated disperse dyes, 5 g / L of sodium sulfate, 3.5 g / L of pH buffer, 2,4,5-trichlorophenol 0.1g / L, organic fluorine surfactant 0.05g / L...

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Abstract

The invention discloses a polyester cotton dispersing and reactive dye one bath process dyeing technology. The technology comprises the steps that dye liquor is prepared at room temperature, the dye liquor pH is adjusted to be 4-6, polyester cotton is immersed in the dye liquor according to the bath ratio of 1:(10-30), heating is conducted to be at 45-55 DEG C, heat preservation is conducted for 8-12 min, heating is conducted to be at 135-145 DEG C, heat preservation is conducted for 35-45 min, isolated disperse dye microcapsule continuous dyeing is conducted for 15-25 min, cooling is conducted to be at 75-85 DEG C, and initial washing, soaping, after-washing and drying are conducted; the dye liquor is prepared from 1-3%(owf) of reactive dye, 2-5%(owf) of rare earth complex microencapsulation disperse dye, 5-15 g / L of anhydrous sodium sulphate, 1.5-3.5 g / L of a pH buffering agent, 0.1-0.3 g / L of organic phenol haloid and 0.01-0.05 g / L of organic fluorine surfactant. The dyeing technology is high in fixation rate, good in levelling property, simple and short in cycle.

Description

technical field [0001] The invention relates to the technical field of dyeing, in particular to a one-bath dyeing process of polyester cotton with disperse 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 dispersed and 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...

Claims

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Application Information

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IPC IPC(8): D06P1/16D06P1/38D06P1/673D06P3/872C08F283/00C08F220/18C08F220/06B01J13/14B01J13/22
CPCB01J13/14B01J13/22C08F283/008D06P1/16D06P1/38D06P1/6735D06P3/8252C08F220/18C08F220/06
Inventor 王文
Owner 宣城加特林机械有限公司
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