Kinetic Aspects of Dye Addition in Continuous Integration Dyeing

Following on from previous papers by the authors concerning the integration dyeing method, this paper studies the kinetic behaviour of the dye when integrated continuously in an isothermal solution over a period of 60 min. The dyeing systems selected were acid dyes on wool and cationic dyes on Leacril 16 fibre. Curves of the kinetics of dye absorption by the fibres were similar to those of the addition of dye to the dyebath. A mathematical method is described to assess the total amount of the dye to be added in relation with the desired temperature and exhaustion