REVOLUTION IN DYEING THEORY?

Schreiner and Kemter's theory on the mechanism of dyeing nylon is critically examined. Experimental results with acid dyes are questioned. 36 refs.

RESIST/BATIK PRINTING OF SILK

The batik dyeing technique is preferred in India over the discharge printing technique because batik preserves background colors. The wax used and the method of handling the fabric during batik printing account for the quality of the process. Batik techniques include the traditional method of using a dyebath to apply color, the brush meth..

WINCH WOOL DYEING BY THE INTEGRATION SYSTEM

Integration dyeing or dosing the dye and/or the products used in the dyeing processes by exhaustion is one of the latest dyeing technique used to improve levelness and accuracy. Standard and integration dyeing systems adequate for wool fabrics using Lanaset (Ciba-Geigy) and Lanasyn S (Sandoz) dyes for winch dyeing are examined. Absorption..

PROSPECTS IN THE AUTOMATIC DISPENSING OF DYES AND CHEMICALS

Automatic dispensing of dyes and chemicals was developed to eliminate human error, reduce health hazards, and save labor costs. A variety of companies produce automatic color kitchens to dispense liquid dyes using continuous and discontinuous processes. Some kitchens dispense liquid dyes while others are equipped to dispense solids as wel..

DYEHOUSE EXPERIENCES WITH TAILING PHENOMENA IN COLD PAD-BATCH DYEING WITH REACTIVE DYES

The problem of tailing still exists in cold pad batch dyeing with reactive dyes. Large variations in the dye concentration of the pad liquor can occur due to preferential absorption of the dye. Not only can the dye concentration change, but also auxiliary products, such as sodium hydroxide or silicate, can be varied due to preferential ab..

AUTOMATED UNMANNED DYEING PLANTS ENTER IN ITALIAN HOSIERY MILLS

Two leading Italian hosiery manufacturers, Carsol and Malerba, have installed new pantyhose dyeing machines in entirely automated and robotized plants. The heart of both plants is Bellini's TCC hosiery dyeing machine, which is preset for robotics. A programmable logic computer(PLC) automates lid operation, safety systems, liquor levels, t..

SELF-REGUALTION OF BATCH DYEING PROCESSES -- A FURTHER DEVELOPMENT OF THE SYNCHRONOUS DYEING SYSTEM

A discussion of the optimization of the batch dyeing processes includes disposition and job planning, the modulated or analytical division of dyeing cycles into subprocesses, and a new computer-based controller with a self-regulation system which considers the interactions between process parameters. This production control system will in..

SUCCESS BY PIECE DYEING WITH THE AERODYNAMIC SYSTEM

Aerodynamic systems for piece dyeing are considered superior to jet dyeing systems because no foam is used and the process is carried out in one stage. With the aerodynamic system, dyeing with a low liquor ratio in a rapid process is achieved. An aerodynamic system, Then-AirflowR, offers piece dyeing that is 100 percent more effective tha..

COLORCOMBI--DRUM DYEING IN A NEW DIMENSION

Proll and Lahmann manufactures the Colorcombi drum dyeing machine wherein dye is metered into and discharged from the drum along the center axis. The rotation speed is thereby reduced to a minimum and, simultaneously, the loading capacity is increased and the cycle shortened. The machine is equipped with a Colormat computer system which m..

PEGFLOW ATMOSPHERIC FABRIC DRYER

Pegg-Whiteley's new Pegflow atmospheric fabric dyeing machine was developed for dye ratios from 1;5 to 1:5. The design eliminates such problems as trapping, crushing, or napping the fabric which occur with conventional machines. Overloading or uneven loading is also prevented. The dye troughs are tilted to provide correct fabric displacem..