Soochow University

Hongmei Xu

Jiajie Long

Feng Chen

Xiaochen Wei

Chuanglong Cui

Aidong Wang

A device for color-fixing processing on textiles includes a supercritical carbon dioxide fluid unit, a fixing liquid storage tank () and a fixing reactor (). The fixing liquid storage tank () is below the fixing reactor () and sealed connected by a connecting device (). The fixing liquid storage tank () has a cylindrical cavity in which a fluid distributor () is mounted. The fluid distributor () is composed of several interconnected pipes which bend down with the nozzles downward, and one of the pipes is used as circulated fluid inlet () connected with the supercritical carbon dioxide fluid unit, and the rest of the pipes are used as circulated fluid outlets.

Method for colour-fixing processing of textile and device therefor

A method for photocatalytic white discharge printing for achieving patterns on textiles includes closely integrating substrates with patterned printing plates or fixing patterned printing plates on one or both sides of a substrate, placing them in a reactor equipped with a light source and containing the photocatalytic white discharging formulation. The method has the characteristics of a simple process, short processing, easy controlling and wide adaptability. The process eliminates the need for printing plates and expensive printing apparatus used in complicated conventional printing methods. Additionally, the photocatalytic solution can be reused which avoids generous application of chemical agents and waste discharges that are present in conventional printing methods. The method is beneficial for cutting costs, saving energy, reducing emissions and has cleaner production.

Method of photocatalytic white discharge printing for achieving patterns on textiles

A phase-transfer catalytic color fixation processing method for textile includes the following steps: (1) dry-dyeing a textile with disperse reactive dyes in supercritical carbon dioxide fluid under waterless condition; (2) putting the textile in a phase-transfer catalytic fixation device, taking phase-transfer catalyst as the carrier of circulated supercritical carbon dioxide fluid, transporting the ionized fixing catalytic alkaline substance from aqueous phase to hydrophobic supercritical carbon dioxide fluid phase, getting full contact with functional groups on fibers, resulting in the fixing catalytic reaction with disperse reactive dyes.

Growing community of inventors

Suzhou, China

Hongmei Xu