USING MICROPROCESSOR CONTROL TO REDUCE PHYSICAL DAMAGE DURING DYEING WHILE MAINTAINING HIGH STANDARDS OF LEVELNESS AND REPRODUCIBILITY.

The actual production units which allow to control the main parameters of the dyeing cycles -- or each kind of fibres and textile materials -- temperature, dosing of chemicals and dyes -- together with the latest knowledges concerning controlled adsorption to ensure the levelness and the reproducibility of dyeings even having the best possible fastnesses, have been the basis for further developments allowing to take care of the physical properties of the dyed material. Additionally to the concept "quality" it has been necessary to pay more attention to the concept "workability" of the dyed material in order to achieve the best performances in the following manufacturing operations, including the confection in apparel. Even using the above mentioned technologies, it is impossible to keep during the whole dyeing process the same mechanic and hydraulic conditions, without any damage to the dyed material. A complete concept and the corresponding production units and peripherical devices have been developed with the help of microprocessors, in order to coordinate all the parameters and get the necessary information on the actual performances of the dyeing machines, as well as on the behaviour of the material which has to be dyed, using it as feed-back for further monitoring of the whole process, including the control of the physical characteristics of the material. [ABSTRACT FROM AUTHOR]