Supercritical Carbon Dioxide Polyester Button Dyeing Kettle and Its Dyeing Process

Abstract

The invention discloses a supercritical carbon dioxide polyester button dyeing kettle and a dyeing process thereof. The dyeing kettle comprises a kettle body, wherein a carbon dioxide fluid and dye inlet and a carbon dioxide fluid and dye outlet are formed in the bottom of the kettle body. Carbon dioxide fluid and dye on the bottom flow into the kettle body during dyeing to impact buttons and drive the buttons for non-static dyeing, so that the buttons are made to move under the variable-speed impact of airflow, and dyeing defects at the positions where the buttons are overlapped are avoided. Meanwhile, due to the fact that the bottom of a cylinder body of the dyeing kettle is designed to be of an inverted trapezoid structure, the situation that the buttons can not make contact with the carbon dioxide fluid carrying the disperse dye to cause dyeing failure is avoided. By the adoption of the dyeing process, buttons in rich and complete colors can be obtained, aftertreatment such as cleaning and drying does not need to be conducted on dyed products, waterless dyeing is achieved in the whole process, production cost is reduced, dyeing quality is improved, and environment pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and relates to a supercritical carbon dioxide dyeing kettle, in particular to a supercritical carbon dioxide polyester button dyeing kettle and a dyeing process thereof. Background technique [0002] my country is a country with a shortage of water resources, and the environment of water resources is also deteriorating. Coupled with the waste of water, the situation of water resources is not optimistic. The traditional water-bath dyeing of buttons mainly uses water as the medium. During the dyeing process, a large amount of chemical substances such as dyes, auxiliary agents and surfactants cause serious pollution to the environment. Masterbatch causes instability in the production process of buttons, which restricts the sustainable development of the garment accessories industry. In the 21st century, the requirements for easy control, high efficiency, no pollution and recycla...

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to provide a supercritical carbon dioxide polyester button dyeing kettle, through which the carbon dioxide fluid drives the buttons to be dyed in a non-static manner, so as to solve the problem of overlapping between buttons and buttons when using the supercritical carbon dioxide dyeing kettle of the prior art. Uneven and impermeable dyeing, causing the problem of button dyeing defects

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