Decolourization of Chlorotriazinyl Reactive Azo Dye with H(2)O(2)/UV.

Researchers investigated an environmentally friendly process for the oxidative decolorization of waste waters with hydrogen peroxide activated by ultraviolet light. An experiment evaluated the impact of treatment on dyebath content according to time dependent reduction of dye intensity and ecological parameters. Results indicated that the..

Ecological Trends in the Dyeing of Cellulose with Reactive Dyes.

Researchers investigated the fixation levels of Ciba-Geigy's Cibacron LS bis monofluoro-s-triazine dyes on cellulosic fibers and yarns. The Cibacron reactive dye and bis monochloro-s-triazine were compared for performance and environmental impact. Spectrophotomerters assessed the velocity of hydrolysis for bis monofluoro-s-triazine, monoc..

Level Dyeing with Non-Linear Temperature Ramps.

The probability of obtaining a level dyeing with disperse dyes on polyester fiber during any batch dyeing operation is directly proportional to the rate of liquor flow and the migration properties of the dye, and is inversely proportional to the instantan

Environmentally Friendly, Productive and Reliable: Priorities for Cotton Dyes and Dyeing Processes.

Current research on dyes and dyeing methods for cotton focuses on environmental considerations, increased productivity, and higher fastness requirements. Color reductions in effluent from exhaust dyeing remain a problem due to the high proportion of dye m

The Use of Colour-Difference Formulae in the Textile Industry.

The dyeing industry currently operates under two industrial standards for color matching: the CIE94 formula, a linear equation accepted at a meeting of CIE TC 1-29; and ISO standard 105-J03, based on the hyperbolic equation CMC. A comparison of the two color formulae using three parameters--correlation coefficient, standard deviation, and..

Piece Dyeing.

At ITMA 1995, Henriksen introduced the Vacu-Jigger, which features reduced water consumption during the after dyeing washing process. Henriksen incorported its Eco-Rinse spraying system into the Vacu-Jigger. The Eco-Rinse system sprays clean water onto the fabric and provides uniform additions of auxiliaries and chemicals to the rinsing b..

Decolourization of Azo Dyes in Effluents by Klebsiella oxytoca.

Researchers investigating the enzymatic activity in dye degradation separated a strain that decolorizes some azo dyes from activated sludge. An increase in the enzyme, produced by the bacterium Klebsiella oxytoca (Ko), resulted in lower dye concentration

Pollution Control in Textile Wet Processing: A Case Study.

Researchers investigated a variety of methodologies for reducing wastewater pollution discharged from textile wet processing. Methods investigated included wastewater volume reduction, effluent recovery and reuse, chemical substiution, and effluent treatment. Effluent treatment methods included screening, equalization, acid dosing, chemic..

Membrane Technology for the Separation of Dyehouse Effluent.

The membrane processes utilized for the treatment of dyehouse effluents include reverse osmosis, nanofiltration, ultrafiltration, and microfiltration. Membranes are available in several configurations (spiral, tubular, flat sheet, hollow fiber, and cerami

Treatment of Dyehouse Effluent for Subsequent Re-Use of Reclaimed Water.

Westover Industries Limited designs effluent treatment facilities for the dyeing industry. The water discharged by Westover plants is suitable for industrial uses. Westover bases its designs on a variety of inline treatment methods. An appropriate design depends on the profile of the effluent, the intended end use of the reclaimed water, ..