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Dyeing of Nylon Fabrics with an Acid Dye in a Rotating‐disc Contactor
Author(s) -
Sada E,
Kumazawa H,
Ando T
Publication year - 1986
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.1478-4408.1986.tb01063.x
Subject(s) - dyeing , diffusion , acid dye , mass transfer , materials science , adsorption , contactor , polymer chemistry , nylon 6 , composite material , chemical engineering , chemistry , chromatography , polymer , organic chemistry , thermodynamics , power (physics) , physics , engineering
The kinetics of dyeing a nylon fabric with an acid dye (C. I. Acid Blue 182) were investigated using a rotating‐disc contactor, and were analysed in terms of intrapolymer diffusion with trimodal (one Nernst‐type and two Langmuir‐types) adsorption. The resistance of mass transfer from liquor to film in film dyeing was found to be negligible relative to resistance inside the film. The effective interfilament diffusion coefficient in the fabric was found to be dependent on the rotational speed of the disc. It appears that the process of dyeing nylon fabric with an acid dye might be governed by interfilament diffusion of dye in the fabric rather than mass transfer from liquor to fabric and intrafilament diffusion.