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Supercritical carbon dioxide skein dyeing kettle and waterless dyeing method thereof

A technology of carbon dioxide and dyeing method, applied in the field of textile printing and dyeing, can solve the problems of uneven coloring, poor leveling performance, water and energy consumption, etc., and achieve the effects of high leveling performance and excellent fastness.

Active Publication Date: 2012-11-14
晋江国盛新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dyed yarn has high quality and high reproducibility, but since there are no pores between the yarns during dyeing, friction is easy to occur, and uneven coloring is prone to occur after dyeing, resulting in poor level dyeing performance
At the same time, the traditional skein dyeing process requires dehydration and drying, which consumes water and energy.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Supercritical carbon dioxide skein dyeing kettle and waterless dyeing method thereof
  • Supercritical carbon dioxide skein dyeing kettle and waterless dyeing method thereof
  • Supercritical carbon dioxide skein dyeing kettle and waterless dyeing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A supercritical carbon dioxide skein dyeing kettle of the present invention comprises a cylinder 1 and a skein support 2, the skein support 2 is fixed in the cylinder 1; the upper end of the cylinder 1 is fixed with a movable sealing cover 3, and the lower end is provided with a carbon dioxide fluid Inlet 4, the upper part of the cylinder body 1 is also provided with a carbon dioxide fluid outlet 5; the outer side of the cylinder body 1 is fixed with a heating jacket 6; the upper end of one side of the heating jacket 6 is provided with a heating medium outlet 7, and the lower end of the other side is provided with Heating medium inlet 8; it is characterized in that the skein support 2 is composed of a frame bottom distributor 201, a support tube 202 and 2 skein frames 203; the 2 skein frames 203 are fixed on the support tube 202 , the support tube 202 is fixed on the bottom distributor 201 of the frame; the support tube 202 is a porous shaft structure, and the bottom dis...

Embodiment 2

[0027] Put 4kg active disperse dark blue dye into the dye kettle, and put 60kg wool skein into the special skein holder. Turn on the refrigeration system, when the pressure of the storage tank drops to 4.4~4.7MPa, the liquid level of the storage tank rises to 420~423mm, and carbon dioxide gas starts to be introduced. Then turn on the heater and oil pump to raise the temperature to 100-104°C, turn on the high-pressure pump to pressurize to a dyeing pressure of 24-25 MPa, and dye for 38-43 minutes. After dyeing, turn off the high-pressure pump and heating system, lower the temperature and release the pressure to 38-43°C, 3.8-4.1MPa, recover the carbon dioxide and dye in the system, and take out the wool skein. The color fastness to washing is grade 3, the color fastness to rubbing is grade 4, and the color fastness to light and weather is grade 4. The color fastness of wool skein dyed with traditional reactive disperse dark blue dyes is grade 3; after using the special support ...

Embodiment 3

[0029] Take by weighing 5kg reactive yellow dye and 50kg cashmere skein and put into dye kettle and skein support respectively. Turn on the refrigeration system, when the pressure of the storage tank drops to 3.9~4.1MPa, the liquid level of the storage tank rises to 410~414mm, and carbon dioxide gas starts to be introduced. Turn on the heater and the oil pump to heat the temperature to 130-133°C. Turn on the high-pressure system to increase the pressure to 26-27MPa, and dye for 52-56 minutes. After the dyeing is completed, turn off the high-pressure pump, heater and oil pump, lower the temperature and pressure to 45-46°C, 3.2-3.4MPa, recover the carbon dioxide and dye in the system, and take out the dyed cashmere skein. After dyeing, the color fastness of cashmere skein to washing is grade 4, the color fastness to rubbing is grade 4, and the color fastness to light and weather is grade 3. Level 3, after using the special support for supercritical carbon dioxide skein yarn, t...

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Abstract

The invention relates to a supercritical carbon dioxide skein dyeing kettle which comprises a cylinder and a skein support. The skein support is fixed in the cylinder; a movable sealing cover is fixed at the upper end of the cylinder, a carbon dioxide fluid inlet is arranged at the lower end of the cylinder, and a carbon dioxide fluid outlet is further arranged on the upper portion of the cylinder; a heating jacket is fixed on the outer side of the cylinder; a heating medium outlet is arranged at the upper end of one side of the heating jacket, and a heating medium inlet is arranged at the lower end of the other side of the heating jacket. The supercritical carbon dioxide skein dyeing kettle is characterized in that the skein support consists of a bottom distributor, a supporting tube and two skein frames; the two skein frames are fixed on the supporting tube; the supporting tube is fixed on the bottom distributor and is of a porous shaft structure; a hole is arranged on the bottom distributor; and an inner cavity of the supporting tube corresponds to the hole I.

Description

technical field [0001] The invention belongs to the field of textile printing and dyeing. Wool, cashmere, yak hair, cotton and cotton blended skeins with a certain degree of bulk are put into a special dyeing kettle for skeins, and are dyed with supercritical carbon dioxide to provide a supercritical skein suitable for skeins. Critical carbon dioxide staining method. Background technique [0002] Traditional dyeing mainly uses water as the medium. During the dyeing process, a large number of chemical substances such as dyes, auxiliaries and surfactants cause serious pollution to the environment, and also restrict the sustainable development of the textile printing and dyeing industry. In the 21st century, the requirements for easy control, high efficiency, no pollution and recyclability are becoming more and more prominent. The supercritical carbon dioxide dyeing technology developed at the end of the last century is considered as a "green and sustainable development techno...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06B5/20D06B9/02D06B9/06D06B23/00D06B23/18D06B23/04D06P1/94
CPCD06B3/08D06B5/20D06B19/00D06B23/14
Inventor 郑来久高世会杜冰郭友才郑环达黄元丽姜涛崔永珠魏菊钱永芳
Owner 晋江国盛新材料科技有限公司
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