Automation and Data Processing in Textile Finishing.

ITMA 1999 featured trends in color management, including quality control, process control, production management, and printing technologies, but lacked major advances in basic color technology. Developments in software, however, expanded the applications of imaging systems. Erhardt + Leimer and Mahlo displayed quality control equipment. E..

Dyeing Machines for the Laboratory.

Datacolor International's Ahiba Nuance high speed laboratory dyeing machine features combination cleaning and infrared heating to reduce exposure to chemicals and provide a high level of safety in the laboratory. Specifically designed black glasses hold the fabrics and the dye solution at 5 degrees per minute. Fans can cool the fabrics at..

Dyeing: Discontinuous Processes.

Notable developments in dyeing machines at ITMA 1999 included high performance computer systems that reduce processing times by 40 percent and energy and water consumption by 50 percent. Dyeing processes have been improved to ensure the quality of more delicate fabrics.

Machinery for Optimized Dyeing Processes.

An overview of machinery for optimal dyeing shown at ITMA 1999 addresses computer aided processing, improved flexibility, fabric protection, piece dyeing, continuous dyeing, yarn dyeing, and new innovative processes. Key trends included increased collaboration between machinery manufacturers and dye and chemical suppliers and optimization..

Heat-Setting Effect.

Researchers investigated the effects of heat setting temperature and treatment time on the dyeing of polyester fabrics with two structurally different disperse dyes. Although heat setting was necessary for dimensional stability, heat setting conditions exerted a greater influence on dyeing behavior. Polyester fiber exhibited greater dye a..

In Situ Cellulose Modification of Wool/Cotton Blended Textiles.

An experiment modified cotton/wool blended textiles with various fiber percentages with amino groups and cationic characteristics for dyeing (union dyeing) in one dyebath using one dye. Modifications were achieved via pretreatments with various compounds, such as biguanide salts, modified water soluble cationic polyamide polymers, and mix..

Automatic Colour Kitchen dispensing and Metering Equipment.

An overview of automatic color kitchen dispensing and metering machinery shown at ITMA 1999 addresses developments in color kitchen system, dispensing units for dye preparation, and dosing systems for pretreatment and dyeing processes. Key advantages of automatic color kitchens include less residual paste and optimization of such processe..

Ozone application to color destruction of industrial wastewater Part II: Modeling

Technologies for color removal of a highly colored industrial waste stream were previously evaluated. A mixed stream with specific concentration and peak absorbance values exceeding 500 absorbs was the target for this experimental study. Initial bench scale testing indicated that ozone was the only viable technology. A pilot scale ozone u..

Peculiarities in the apparent fading behavior of some reactive dyes in binary mixtures

This paper deals with studies of the lightfastness of reactive dyes in combination shades. In this work, fifteen commercially available reactive dyes are chosen to obtain both self and binary shades on 100% cotton fabric. Lightfastness of the dyed samples is evaluated by exposing them to a xenon arc lamp using a xenon Weather-O-meter (Atl..

Coloration of polyamide textiles: Recent developments

The coloration of polyamide fibres is achieved by using various types of dyes; acid, premetallized, chrome and reactive. This article reviews developments in the application of these dye classes as well as their pretreatment and aftertreatment. Washfastness of wool is seen to improve when acid dyes are applied and better results for nylon..