An Investigation into the Use of Supercritical Fluid Technology for Analytical, Process and Environmental Applications in Textiles.

Supercritical fluid extraction can reduce the extraction times of textile substrates and the amount of solvent required for the analysis of extractables. Researchers investigating the use of supercritical fluid technology for analytical, process, and environmental applications in polymers, fibers, and txtiles are studying the solubility a..

Real-Time Analysis and Control of Batch Dyeing Processes.

Conventional methods of controlling batch dyeing processes depend on adherence to set processing conditions. A recent project used a novel method that monitors individual dye concentrations in the dyebath and takes pre-emptive corrective action to ensure the desired final shade. Researchers developed a technique for the real time closed l..

Investigation of Reaction between Polycarboxylic Acids and Catalysts Using FT-IR Microscopy and a Heated Stage.

Researchers investigating the reaction mechanisms between polycarboxylic acid (PCA) crosslinking agents and cotton used salts of inorganic phosphorus acid to catalyze the reaction. Sodium hypophosphite was the most effective catalyst. To determine the mechanisms by which the catalyst acts, an experiment heated complexes of the PCA and cat..

Electrochemical Study of Interactions between the Cationic Dye and the Cationic Surfactant in an Aqueous Solution.

The potentiometric method analyzed the interactions between the cationic dye C.I. Basic Yellow 25 (BY25) and the cationic surfactant ceytlpyridinium chloride (CPC) in aqueous solution at pH 7 and 25 degrees centigrade. Results indicated that the surfactant CPC formed an anticooperative complex with one of the components of BY 25. Purifica..

Coloring Cotton Safely.

Recycling water and salt from cotton wet processing operations reduces processing costs and improves environmental friendliness. The Gaston County Environmental Systems Division and Cotton Incorporated are developing a system that efficiently recycles eff

Dechlorination Installation Enhances Productivity and Color Consistency at Jaunty Textile.

A commission dyeing and finishing business installed a new dechlorination system to eliminate problems with streaking and colors not meeting specifications. The system automatically adjusts chemical feed rates to meet the changing conditions of the proces

Influence of Dye Bath Components on Decolorisation Process.

Hydrogen peroxide activated with ultraviolet light constitutes an environmentally friendly method of oxidative decolorization for wastewater. A study compared the process with conventional decolorization processes. Researchers examined the influence of dyebath components on the decolorization process and the reduction of color intensity. ..

An improvement in effluent disposal with emphasis on cotton pretreatment processes

Environmental protection is becoming a serious concern for textile wet processors. In the dyeing and finishing industry, the pretreatment processes of cotton often cause serious ecological problems. The aim of this project was to reduce the effluent pollu

Discoloration of light dyed woven fabrics at industrial washing (Serbocroatian) (Promjena obojenja svijetlo obojadisanih tkanina u industrijskom pranju)

Changes of shade of light dyed samples under the influence of an optical brightener in the detergent at industrial washing in the rotary washing machine are similar to those when clean samples are washed in the laboratory machine. It was washed together w

The Biotechnology Approach to Colour Removal from Textile Effluent.

A joint project between the Textile Finishers Association (TFA) and the United Kingdom Department of Trade and Industry Environmental Management Options Scheme (DEMOS) recommends ranking solutions to environmental problems in the order: elimination, reduction, recycling, and treatment/disposal. DEMOS evaluated approximately 30 different m..