New infrared laboratory dyeing apparatus

The Ahiba Nuance Top Speed is the latest infrared dyeing machine from Datacolor. It is an all-in-one dyeing and testing machine for all types of fibres and can simulate all the usual dyeing processes up to a temperature of 140 C. The machine's features are briefly described.

Concern for environment - industry's viewpoint

The measures being taken to improve the countering of toxicological hazards within the Indian dyestuffs industry are listed. The setting up to pollution control systems is described.

Rotary screen printing, alive and kicing

Over the last three decades rotary-screen printing has become the most important technique for textile printing. In discussing the challenges for the next decade, this paper identifies the trend towards shorter run lengths, particularly in Western Europe, as a major issue. It goes of to discuss the recent technical developments from Stork..

Squeeqee washer saves water and requires only minimal handling

The development of a cleaning system for the squeeqees used in rotary screen printing is reported. Dutch company, Klieverik Heli has created the system for squeeqees up to 1850mm print width, which washes them using less water. The system is described.

Effect of moisture content and acid compounds remaining in dyed fabrics on ammonia removal

Effects of commercial textile fibres, deodorizing bed-wadding fibres, and deodorants on ammonia removal were investigated using the gas detection tube method. The higher the fibre moisture content, the more ammonia was removed. Residual acid compounds in dyed fibres resulted in neutralization of ammonia. The removal effect of the residual..

Growing demand for jet dyeing machines

The technical features of jet dyeing machines are described and the savings in thermal and electrical energy which they permit are noted.

Logic control system for jig dyeing

A computer-control system called Logic has been developed by Vald Henriksen. The Danish firm created it for jig dyeing control and it is designed for menu-operated programming. The new High Speed feature reduces dyeing time by up to 30 by increasing speed on the uptaking roller as the roller diameter gets larger.

Low Wash: a new/old approach to rinsing

Low Wash describes the application of an old principle to modern jet dyeing, reducing the amount of water and time required for rinsing substantially. Rinsing methods in general and advances in chamber design are reviewed and the new Low Wash technique is explained.

Improving computer control of batch dyeing operations

There are several options for upgrading the control system for textile wet processing such as batch dyeing. Some of the basic constraints of the present control systems need to be lifted. Possible new control algorithms are presented along with specific simulation and experimental results for fuzzy logic and adaptive control systems.

The particle size distribution of woolscour liquors

A Coulter counter has been used to measure the particle size distributions for wool-scouring liquors. Commercial liquors are shown to have a bimodal distribution: there is one maximum below 1 , with a second in the range 5-10. It is thought that the smaller particles are from the weathered tips of the wool and the larger ones from the unw..