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Solvent dyeing of acrylic fibers. Process variables and mechanisms based on rates of dyeing and diffusion studies using cationic dyestuffs
Author(s) -
Duffy Edward A.,
Olson Edward S.
Publication year - 1972
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1972.070160622
Subject(s) - dyeing , cationic polymerization , diffusion , sorption , solvent , chemical engineering , aqueous solution , polymer chemistry , chemistry , materials science , organic chemistry , thermodynamics , adsorption , physics , engineering
Diffusion coefficients of selected cationic dyes are calculated for one aqueous and six organic solvent dye systems. The concentrations of dyestuffs sorbed by the fibers as functions of dyeing times are plotted for the various dyeing systems.Results indicate that dye sorption decreases and the diffusion coefficient increases as the concentration of the cosolvent increases. The results were determined by comparing the Crank and Olofsson equations for diffusion.