Textile industry can be classified into three categories viz., cotton, woolen, and synthetic fibers depending upon the used raw materials. The cotton textile industry is one of the oldest industries in China. The textile dyeing industry consumes large quantities of water and produces large volumes of wastewater from different steps in the dyeing and finishing processes. Wastewater from printing...

Work summarized in this final report covering three years of research includes: 1) A method for real-time monitoring of disperse dye exhaustion on polyester and acetate; 2) A method for realtime monitoring of both reactive dye exhaustion and hydrolysis; 3) A comparison of a newly developed method for real-time monitoring of indigo with the conventional titrametric method; 4) Models of direct dy...

There is an increasing demand for air-dry performance of fluorocarbon finished materials. Thus, dyeing with different types of reactive, mono, bi, and multi-functional, dyes was evaluated as a novel treatment to create correct surface interface to maintain fluorocarbon performance without ironing or tumble drying. The effects of pre-treatment on fluorocarbon finishing of cotton fabric, a cellul...

Reactive dyeing is the most widely used method for cellulosic fabrics in textile industry. In this study, it was aimed to reduce environmental impact caused by use of high salt during with reactive dyestuffs. context, a quaternary ammonium based chemical cationization cotton fabrics. The usage amount cationizing agent and flake caustic determined experiments as 50 g/L 17 g/L, respectively. Conv...

The separation of reactive, sulfur, and vat dyes from cotton dyeing effluent was investigated by a coagulation process using a cationic polymer electrolyte (PE). The coagulation of dyes was found to be considerably influenced by the amount of added PE and pH of the effluent. High degree of separation, (i.e.-90-99%) could be achieved for all the dyes. The secondary treatment of the PE treated (p...

Understanding the dyeing behaviors of reactive dyes onto cotton in non-aqueous media is helpful to facilitate development sustainable dyeing. Here, thermodynamic characteristics with liquid paraffin (LP) and decamethylcyclopentasiloxane (D5), were investigated compared those aqueous medium. The results showed that adsorption isotherms LP, D5, water accorded Freundlich model, indicating proceede...