Ultrasonic-assisted supercritical CO2 (carbon dioxide) wool fiber dyeing process

An ultrasonic and supercritical technology, applied in the field of dyeing process, can solve the problems of damage and heat preservation, high process requirements, failure to meet export standards, etc., and achieve the effect of small damage, short dyeing time and simple process steps

Inactive Publication Date: 2012-12-12
WUXI SINTEX PRINTING & DYEING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because wool fiber contains a large amount of carbohydrates, the dyeing process is very demanding. It is easy to denature under strong acid or strong alkali environment or if the dyeing time is too long, which will damage its unique functions of keeping warm.
According to relevant data, after the general dyeing environment and dyeing process, 80% of the protein in goat hair is basically denatured, which cannot meet the export standard.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An ultrasonic-assisted supercritical CO 2 Wool fiber dyeing process, comprises the steps:

[0018] Step 1. Pretreatment: select, wash and classify the raw animal wool;

[0019] Step 2. Put the pretreated animal hair into an ultrasonic cell pulverizer with 3% cellulase of wool mass for ultrasonic treatment. The treatment temperature is 20°C, the ultrasonic power is 150W, and the treatment time is 10 minutes;

[0020] Step three, carry out supercritical CO to the animal hair after step two treatment 2 dyeing. When dyeing, add 2% cellulase of wool mass. Among them, CO 2 The flow rate is 5kg / h, the temperature is 30°C, the pressure is 30MPa, the liquor ratio is 20:1, the pH is controlled at 4-6, and the dyeing time is 15min.

Embodiment 2

[0022] An ultrasonic-assisted supercritical CO 2 Wool fiber dyeing process, comprises the steps:

[0023] Step 1. Pretreatment: select, wash and classify the raw animal wool;

[0024] Step 2. Put the pretreated animal hair into an ultrasonic cell pulverizer added with 10% cellulase of wool mass for ultrasonic treatment. The treatment temperature is 25° C., the ultrasonic power is 200 W, and the treatment time is 7 minutes. ;

[0025] Step three, carry out supercritical CO to the animal hair after step two treatment 2 dyeing. When dyeing, add 2% cellulase of wool mass. Among them, CO 2 The flow rate is 7kg / h, the temperature is 40°C, the pressure is 28MPa, the pH is controlled at 4.5-5, and the dyeing time is 10min.

Embodiment 3

[0027] An ultrasonic-assisted supercritical CO 2 Wool fiber dyeing process, comprises the steps:

[0028] Step 1. Pretreatment: select, wash and classify the raw animal wool;

[0029] Step 2. Put the pretreated animal hair into an ultrasonic cell pulverizer added with 3% cellulase of wool mass for ultrasonic treatment. The treatment temperature is 40° C., the ultrasonic power is 300 W, and the treatment time is 7 minutes. ;

[0030] Step three, carry out supercritical CO to the animal hair after step two treatment 2 dyeing. When dyeing, add 2% cellulase of wool mass. Among them, CO 2 The flow rate is 5kg / h, the temperature is 35°C, the pressure is 25MPa, the pH is controlled at 4.5-5, and the dyeing time is 10min.

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PUM

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Abstract

The invention discloses an ultrasonic-assisted supercritical CO2 (carbon dioxide) wool fiber dyeing process. The ultrasonic-assisted supercritical CO2 wool fiber dyeing process includes the steps of firstly, pretreating, namely performing sorting, scouring and grading of animal wool; secondly, performing ultrasonic treatment of the pretreated animal wool in an ultrasonic cell disruptor; and thirdly, performing supercritical CO2 dyeing to the treated animal wool. The ultrasonic-assisted supercritical CO2 wool fiber dyeing process abandoning the traditional dyeing process has simple steps, short dyeing time and low damage of wool fiber.

Description

technical field [0001] The invention relates to a dyeing process, in particular to a wool fiber dyeing process. Background technique [0002] Hair fibers are fibers obtained from animals and are multicellular structures composed of keratin. The main varieties are: sheep wool, cashmere, mohair, Angora goat hair, rabbit hair, camel hair, yak hair. Wool fiber has the excellent characteristics of lightness, softness and warmth, and can be used as raw materials for high-grade worsted clothing and woolen high-grade coats and blankets. [0003] Because wool fiber contains a large amount of carbohydrates, the dyeing process is very demanding. It is easy to denature in strong acid or alkali environment or if the dyeing time is too long, which will damage its unique warmth retention and other functions. According to relevant data, after the general dyeing environment and dyeing process, 80% of the protein in goat hair is basically denatured, which cannot meet the export standard. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/94D06P3/14D06P3/04D06M16/00C12S11/00D06M10/02D06M101/10
CPCD06B13/00
Inventor 王克荣
Owner WUXI SINTEX PRINTING & DYEING CO LTD
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