Investigations into the Wash Fastness of Disperse-Dyed PP Fabrics.

Researchers disperse dyed polypropylene fabric and film at 80 degrees centigrade. After several hours of boiling in double distilled water, both materials proved to be completely colorfast. When the wash liquor contained a surfactant, the materials were completely decolorized in a short time. As a result, researchers studied the mass tran..

Excellence in Cotton Dyeing and Finishing.

At the Cottech 1998 Conference, R. Michael Tyndall of Cotton Incorporated attributed apparel color loss after washing to unfixed dye, laundry detergent ingredients, domestic laundering methods, surface changes, and abrasion. Some reactive dyed cotton fabrics show no color loss regardless of the laundry detergent used. Resin finishes impro..

A Study of Reaction Time in the Pad-Batch Dyeing of Cellulose Textile Materials with Monochlorotriazinyl Reactive Dyes.

Research on pad-batch dyeing of cellulosic fibers with monochlorotriazinyl reactive dyes focused on reaction time variations to establish the minimum dwell time that results in the best fixation. Pad-batch dyeing involves padding with an alkaline solution of dye, dye fixation at ambient temperature, and washing. Reaction time is the perio..

Light, Light Sources and Light Interactions.

The appearance of surface colors on textile is a function of the character of the prevailing illumination under which the color surface is viewed; the interaction of the illuminating radiation with the colored species in the surface layers; and the ability of the radiation that is transmitted, reflected, and scattered from the colored sur..

WRONZ Report 1997-1998.

The 1997-1996 WRONZ Report focuses on developments in scoured wool, carpet, apparel, single-stage processing, environmental, and wool production technologies. WRONZ also conducted basic scientific research funded by the government on wool fibers. This research included investigations of distortions in the internal fiber cellular structure..

Reactive Dye House Wastewater Treatment. Use of Hybrid Technology: Membrane Sonication Followed by Wet Oxidation.

Researchers developed a hybrid technology, consisting of membrane separation followed by sonication and wet oxidation, to treat the wastewater of dyeing plants using reactive dyes. In experiments with the reactive dye solution in water, a nanofiltration membrane effectively concentrated the dye. The concentrate was then treated with a wet..

Efficiency of Using Ion-Exchange Fibre Materials for Removal of Surfactants from Wastewaters

Textiles with highly efficient ion exchange properties have applications in the removal of surfactants from wastewater. Because of its complexity, however, problems associated with this process have not been definitively solved. Research on these textiles used anion and cation active chemisorptive polyacrylonitrile fibers with a range of ..

Comparative Assessment of Textile Dyeing Technologies from a Preventive Environmental Protection Point of View.

The European Union Council directive on integrated pollution prevention and control requires textile dyeing companies to determine the best available techniques for environmental protection. An overview of the batch and pad dyeing processes in terms of preventive environmental protection concludes that the latest generation of technologie..

Dyeing Defects: A General Review

A review of dyeing defects focuses on current problems and strategies to prevent these problems, particularly those related to human error, which remains the cause of most dyeing defects. Problems related to textiles, preparation, water, steam, machinery, and selection and application of dyes also cause dyeing defects. Human error occurs ..

Comments on 'Pathways for Dye Diffusion in Wool Fibers.'

A review by Wortmann et al of the mechanism of dye diffusion into wool interpreted experimental data that generally agreed with data obtained by Leeder et al at the CSIRO Division of Wool Technology. This research used a transmission electron microscope to follow the diffusion of specially synthesized dyes containing nuclear dense atoms i..