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The Light Fastness of Anthraquinone Disperse Dyes on Poly(ethylene terephthalate)
Author(s) -
Allen Norman S.,
Bentley Peter,
McKellar John F.
Publication year - 1975
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.1478-4408.1975.tb03221.x
Subject(s) - anthraquinone , polyester , singlet state , photochemistry , ethylene , polymer chemistry , materials science , poly ethylene , chemistry , excited state , organic chemistry , physics , catalysis , nuclear physics
The I.S.O. light‐fastness grades of thirty‐two anthraquinone disperse dyes on polyester fabric have been determined. High light fastness is exhibited by the 1‐ and 1,4‐hydroxy derivatives and 1‐ or 1,4‐sub‐stituted amino derivatives possessing N‐substituted electron‐withdrawing groups. The 1‐ and 2‐methoxyanthraquinones, 2‐hydroxyanthraquinones and all the 2‐amino derivatives examined, on the other hand, have poor light fastness. The high light stability of the 1‐hydroxy‐ and 1‐anilinoanthraquinones may be due to rapid de‐activation of their photo‐excited singlet states, while the poor light fastness of the 2‐aminoanthraquinones is probably due to their ability to abstract electrons from their environment.