Supercritical carbon dioxide dyeing device and its process

A carbon dioxide and dyeing device technology, applied in the field of dyeing devices, can solve problems such as water pollution, and achieve the effects of reducing environmental pollution, saving water and dye resources, and uniform dyeing

Inactive Publication Date: 2006-05-03
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above problems, the present invention provides a supercritical carbon dioxide dyeing device, which realizes dyeing by using supercritical fluid carbon dioxide, and sets the gasification of supercritical carbon dioxide after dyeing, recovers dyes, and simultaneously recovers carbon dioxide for dyeing textiles again Advanced equipment realizes the cycle operation of supercritical carbon dioxide dyeing and solves the problem of serious water pollution in the textile dyeing and finishing industry

Method used

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  • Supercritical carbon dioxide dyeing device and its process

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Embodiment Construction

[0019] The principle basis of the dyeing device of the present invention is that in a supercritical state, carbon dioxide has good mass transfer performance and solubility, and has good solubility for non-polar substances, while carbon dioxide below the critical point does not have such ability. The so-called supercritical state of carbon dioxide refers to the working state of carbon dioxide at a critical point pressure of 7.3MPa and a critical point temperature of 31.1°C.

[0020] The structure and working principle of the dyeing device of the present invention developed according to the characteristics of the above-mentioned supercritical carbon dioxide are as follows:

[0021] The overall safety function classification of the device of the present invention includes the following systems:

[0022] 1. Dyeing system: This is the main part of the supercritical carbon dioxide dyeing device, and other subsystems serve this system. The main equipment includes dyeing kettle, dye...

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Abstract

The invention discloses a supercritical carbon dioxide dyeing device, which comprises mainly a CO2 storage tank (H01), a dye kettle (H06), and a dyeing kettle (H07). Wherein, the dyeing technique comprises: cooling the CO2 from HO1 into liquid to send into preheater (HO5) connected to HO6 with carbon-dioxide high-pressure pump (HO4); sending supercritical carbon dioxide to HO7 by HO6; driving the dyed carbon dioxide to pass separator (HO8) and second condenser (HO9) and return to said storage tank (HO1). This invention can recycle 100% residual dye and carbon dioxide as dyeing medium, saves water and dye resource, and reduces pollution.

Description

technical field [0001] The invention relates to a dyeing device used in textile, dyeing and finishing industries, more specifically, relates to a device for realizing dyeing by using supercritical fluid carbon dioxide. Background technique [0002] The traditional textile dyeing and finishing industry suffers from severe water pollution and serious damage to resources and the environment. At present, although various enterprises have adopted corresponding sewage treatment methods, the actual effect of printing and dyeing sewage treatment is still not ideal, which seriously pollutes the water resource environment and endangers people's life and health. In recent years, countries all over the world are devoting themselves to the research of anhydrous dyeing technology. With the rapid development of modern science and technology, supercritical fluid technology is increasingly valued by many countries in the world, and is gradually applied to many industries such as chemical in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06B9/02D06B9/06
CPCY02P70/62
Inventor 郑来久郭友才姜涛李安源
Owner DALIAN POLYTECHNIC UNIVERSITY
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