Low temperature dyeing method for wool fibre

A wool fiber, low temperature dyeing technology, applied in the field of textile dyeing and finishing, can solve problems such as strong corrosion, wool fiber damage, and fiber physical and mechanical properties decline.

Inactive Publication Date: 2009-05-13
ZHANGJIAGANG CHENCHEN TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: high energy consumption, and high temperature and long-term treatment of wool fiber in the dyeing process (such as 60min-90min at 98°C-100°C) is easy to damage the wool fiber, such as weight loss of wool, reduction of carding output, short fiber increase in fiber physical and mechanical pro

Method used

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  • Low temperature dyeing method for wool fibre
  • Low temperature dyeing method for wool fibre

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Wool loose fiber: put 100Kg of loose fiber into the intermittent wool dyeing machine, the liquor ratio is 1:25, add 1Kg of acid dye, 5Kg of sodium sulfate, 1Kg of high-efficiency penetrating agent SP-2 and 0.6Kg of wool at 40°C A kind of gemini cationic surfactant, adding an appropriate amount of acetic acid to control the pH value of the solution to 4.5-5. Raise the temperature to 80°C at a rate of 1°C to 2°C per minute, and run for 45 minutes. Turn on the water, then soap with 70°C alkaline soap for 15 minutes, and continue to wash with 50°C water for 15 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Embodiment 2

[0053] Wool loose fiber: put 100Kg loose fiber into the intermittent wool dyeing machine, the bath ratio is 1:25, add 1Kg wool reactive dye, 1.5Kg ammonium sulfate, 5Kg sodium sulfate, 0.5Kg flatin at 40°C The mixture of O and 0.8Kg two kinds of gemini cationic surfactants, the mixing ratio of the two is 1:1. Raise the temperature to 80°C at a rate of 1°C to 2°C per minute, and run for 60 minutes. Continue to add 25% ammonia water to adjust the pH of the solution to 8-8.5, and treat at 80° C. for 20 minutes. Turn on the water, then soap with 70°C alkaline soap for 15 minutes, and continue to wash with 50°C water for 15 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Embodiment 3

[0055] Wool yarn (60 counts): put 100Kg of yarn into the intermittent wool top dyeing machine with a liquor ratio of 1:30, add 1Kg of acid dye, 6Kg of sodium sulfate, and 1.2Kg of high-efficiency penetrating agent SP- 2 and 0.7Kg a kind of gemini cationic surfactant, add appropriate amount of acetic acid to control the pH value of the solution to be 4.5-5. Raise the temperature to 80°C at a rate of 1°C to 2°C per minute, and run for 45 minutes. Turn on the water, then soap with 70°C alkaline soap for 15 minutes, and continue to wash with 50°C water for 15 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

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Abstract

The invention discloses a method for dyeing wool fibers at low temperature, which is characterized by comprising the following steps: increasing one or more than one Gemini cationic surfactant in the process of the prior wool acid dye dyeing or wool active dye dyeing, and then dyeing at specified temperature, wherein usually, the added weight of the Gemini cationic surfactant is 0.1 to 1.0 percent of that of the wool fibers, and the dyeing time is 40 to 90 minutes at a temperature of between 75 and 85 DEG C. The method can improve dyeing quality of the wool fibers and simultaneously reduce energy consumption in the dying process.

Description

technical field [0001] The invention relates to a processing method for low-temperature dyeing of wool fibers, more particularly to a process for dyeing wool with acid dyes or reactive dyes. The invention belongs to the technical field of textile dyeing and finishing. Background technique [0002] The dyeing of wool fibers, including the dyeing of wool loose wool, wool tops, wool yarn, and wool fabrics, generally uses wool acid dyes or wool reactive dyes in the production process. The dyeing rate of wool reactive dyes on wool fibers adopts high temperature process, and the dyeing temperature is as high as 98°C-100°C, otherwise, the color yield of wool acid dyes or wool reactive dyes on wool fibers will be reduced, and the color will become lighter. The utilization rate of the dyestuff decreases, and the chromaticity of the dyeing wastewater is large. Its disadvantages are: high energy consumption, and high temperature and long-term treatment of wool fiber in the dyeing pro...

Claims

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Application Information

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IPC IPC(8): D06P3/16D06P3/14D06P1/66D06P3/82
Inventor 朱亚伟姚雷陈波朱建成
Owner ZHANGJIAGANG CHENCHEN TEXTILE
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