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Kinetic aspects of dye addition in continuous integration dyeing
Author(s) -
Cegarra J,
Puente P,
Valldeperas J,
Pepió M
Publication year - 1989
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1989.tb01185.x
Subject(s) - dyeing , cationic polymerization , isothermal process , absorption (acoustics) , arrhenius equation , acid dye , kinetics , kinetic energy , chemistry , thermodynamics , chemical engineering , materials science , polymer chemistry , organic chemistry , composite material , activation energy , physics , quantum mechanics , engineering
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. At low exhaustion the systems followed an Arrhenius law, contrary to the behaviour at high exhaustion where the dye absorption was almost independent from temperature. A mathematical method is described to assess the total amount of the dye to be added in relation with the desired temperature and exhaustion.