Supercritical CO2 waterless dyeing system and cloth dyeing method thereof

Abstract

The invention discloses a supercritical CO2 waterless dyeing system and a cloth dyeing method thereof. The method comprises the following steps of A, preparing and storing of CO2; B, cooling; C, pressurizing; D, heating, wherein a heating device is utilized for enabling CO2 to form supercritical fluid, and the supercritical fluid is heated to 120-150 DEG C; E, dyeing, wherein a circulating pump pushes a mixture of the supercritical fluid and dye to circularly flow inside a circulation channel, cloths inside a pressure kettle are dyed, the pressure inside the pressure kettle is 28-30 MPA, the temperature is 120-150 DEG C, the circulation flowing time is 20-40 min, and the circulation flow is not smaller than 10 M<3> per hour; F, pressure relieving, wherein a nanoscale color masterbatch is dissolved through the supercritical CO2 fluid, the cloths are dyed, and dyeing technological conditions such as pressure, temperature and time are optimized at the same time so as to improve the dyeing efficiency and dyeing quality.

Description

technical field [0001] The invention relates to a dyeing equipment and a dyeing method, in particular to a supercritical CO2 anhydrous dyeing system and a cloth dyeing method thereof. Background technique [0002] The China Intellectual Property Office published the publication number 103806234A on May 21, 2014, and the patent name is supercritical CO 2 Patent literature of anhydrous rotary warp beam horizontal dyeing kettle and its dyeing system, a supercritical CO 2 The waterless rotating beam horizontal dyeing kettle includes a dyeing kettle body with a dyeing chamber in the body, a kettle cover that is buckled at one end of the dyeing kettle body to open and close the opening of the dyeing chamber, and is installed in the dyeing chamber and is used to set up the dyeing chamber. Dyeing fabric rack for dyed fabric and dyeing kettle heating and cooling device for heating the dyeing kettle body, the dyeing fabric rack includes a hollow dyeing warp beam with a plurality of a...

AI Technical Summary

Problems solved by technology

[0004] The China Intellectual Property Office published a publication number of 1958941 on May 9, 2007, and the patent name is a patent document of a fluid anhydrous dyeing technology. Now the printing and dyeing industry consumes a large amount of fresh water every year, and the discharged wastewater contains a large amount of Inorganic salt and alkali, seriously pollute the environment

Images