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High temperature dyeing and printing colour stripping process method for dacron

A technology of polyester fiber and treatment method, which is applied in the field of stripping treatment for high-temperature printing and dyeing polyester fibers, which can solve the problems of insignificant stripping effect, ineffective contact and decomposition, etc., to achieve enhanced decomposition and facilitate Restains, enhances visible effects

Inactive Publication Date: 2008-06-11
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the polyester fiber is not in a puffed state, the surface crystal layer is not loose, and the stripping treatment is performed, the reducing agent cannot effectively contact and decompose the disperse dye molecules that have penetrated into the fiber, resulting in the stripping effect. It is not obvious, it can only play the role of removing the floating color on the surface of the fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this embodiment, the main stripping agent is a mixture of sodium sulfite and sodium bisulfite, wherein the mass ratio of sodium sulfite and sodium bisulfite is 1:2; the penetrating agent is selected from alkylphenol polyoxyethylene ether; the dispersant is selected from detergent 1227 The bulking agent is a mixture of soda ash and α-methylnaphthalene, wherein the mass ratio of soda ash and α-methylnaphthalene is 2:1.

[0025] In 5 tons of water, add 85 kg of main stripping agent, 55 kg of penetrating agent and 70 kg of expanding agent, stir to disperse evenly, and preheat to 30°C, then add 1 ton of polyester fiber material with dyeing defects, stir Mix well and soak for about 30 minutes. After adding 100 kg of dispersant, increase the temperature at a rate of 2 °C / min until 95 °C, and maintain this temperature until the defects on the polyester fiber are completely removed. The polyester fibers in the solution are taken out, put into boiling water with a detergent c...

Embodiment 2

[0027]In this embodiment, the main stripping agent is selected from sodium hydrosulfite; the penetrating agent is selected from fast penetrating agent T, the dispersant is selected from emulsifier S-400, and the bulking agent is selected from the mixture of β-methylnaphthalene and α-phenylnaphthalene, wherein β-methylnaphthalene The mass ratio of naphthalene to α-phenylnaphthalene is 1:3.

[0028] In 5 tons of water, add 90 kg of main stripping agent, 70 kg of penetrating agent and 100 kg of bulking agent, stir to make it evenly dispersed, and preheat to 40 ° C, then add 1 ton of polyester fiber material with dyeing defects, stir Mix well and soak for about 1 hour. After adding 60 kg of dispersant, raise the temperature at a rate of 4 °C / min until 120 °C, and maintain this temperature until the defects on the polyester fiber are completely removed. The polyester fibers in the solution are taken out, put into boiling water with a detergent concentration of 1% and boiled for 10...

Embodiment 3

[0030] In this embodiment, the main stripping agent is sodium chlorite, the penetrating agent JFC is selected, the high-temperature leveling agent W is selected as the dispersant, and the mixture of sodium tripolyphosphate and β-phenylnaphthalene is selected as the swelling agent, wherein sodium tripolyphosphate The mass ratio to β-phenylnaphthalene is 1:1.

[0031] In 5 tons of water, add 100 kg of main stripping agent, 65 kg of penetrating agent and 110 kg of expanding agent, stir to disperse evenly, and preheat to 40 ° C, then add 1 ton of polyester fiber material with dyeing defects, stir After evenly soaking for about 1.5 hours. After adding 120 kg of dispersant, raise the temperature at a rate of 6 °C / min until 100 °C, and maintain this temperature until the defects on the polyester fiber are completely removed. The polyester fibers in the solution are taken out, put into boiling water with a detergent concentration of 1% and boiled for 10 minutes, and then washed with ...

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Abstract

The invention discloses a high temperature printing and dyeing color stripping processing method of polyester fiber, which adopts a heating processing equipment with routine color stripping process. The utility model is characterized in that the polyester fiber with dyeing speck is heated and processed through aqueous solution which includes main color stripping agent, penetrating agent, swelling agent, and reducing agent. The four components of the main color stripping agent, the penetrating agent, the swelling agent and the reducing agent in the high temperature printing and dyeing color stripping processing method of the polyester fiber of the invention all play respective certain function and cooperate mutually, in particular, the decomposition effect to the pigment molecule and the expanding effect to the polyester fiber are enhanced simultaneously, the enhancement effect is obvious, and the invention is favorable to the main color stripping agent to effectively contact and dissolve pigment molecules which penetrate into the inner part of the fiber with the help of the penetrating agent. Therefore, compared with the traditional color stripping processing method, the invention is more suitable for the color stripping processing of the dispersed dyes with stronger binding power on the high temperature printing and dyeing polyester fiber.

Description

technical field [0001] The invention relates to a color stripping treatment method for textiles, in particular to a color stripping treatment method for high-temperature printing and dyeing polyester fibers. Background technique [0002] Polyester fiber is widely used in various textiles and clothing fabrics due to its high strength, good resilience, excellent wear resistance, good dimensional stability, and good wrinkle resistance. However, due to its compact structure, strong hydrophobicity, and no obvious hydrophilic group in the molecule, it is difficult to dye with hydrophilic dyes at room temperature. Disperse dyes have small molecular weight, do not contain hydrophilic groups, and are slightly soluble in water. They are ideal dyes for polyester fibers. The dyeing of polyester fibers by disperse dyes generally adopts three methods: hot-melt dyeing, high-temperature and high-pressure dyeing, and carrier dyeing. The binding force is stronger. But at the same time, it ...

Claims

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Application Information

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IPC IPC(8): D06P5/02D06P5/15D06P3/54
Inventor 陈奠宇李一凡
Owner CHANGSHU INSTITUTE OF TECHNOLOGY
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