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Diffusion of dyes in polyester fibers. IV. Anomalous sorption of disperse dye synthene scarlet P3GL
Author(s) -
Narȩbska Anna,
Lemańska Gizela
Publication year - 1984
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.1984.070290502
Subject(s) - sorption , dyeing , polyester , disperse dye , diffusion , materials science , fick's laws of diffusion , polymer chemistry , ethylene , poly ethylene , chemical engineering , thermodynamics , composite material , chemistry , adsorption , organic chemistry , physics , engineering , catalysis
The investigations on dyeing of poly(ethylene terephthalate) fibers with disperse dye Synthene Scarlet P3GL have revealed anomalous sorption of the dye in heat‐treated samples. In the mathematical solution of the process it has been assumed that anomalous sorption can be treated as superposition in time of two stages of Fickian sorption. The contents of absorbed dye at quasiequilibrium C I , at the final equilibrium C II , and the apparent diffusion coefficients D I , and D II have been calculated using Hill's equation.