PHOTOCHEMICAL BEHAVIOR OF NATURAL SILK - III - PHOTOFADING OF SILK DYED WITH ACID AZO DYES

Authors
VASSILEVA V BALTOVA S HANDJIEVA S
Citation
V. Vassileva et al., PHOTOCHEMICAL BEHAVIOR OF NATURAL SILK - III - PHOTOFADING OF SILK DYED WITH ACID AZO DYES, Polymer degradation and stability, 61(3), 1998, pp. 367-373
Citations number
28
Categorie Soggetti
Polymer Sciences
Journal title
Polymer degradation and stability → ACNP
ISSN journal
01413910
Volume
61
Issue
3
Year of publication
1998
Pages
367 - 373
Database
ISI
SICI code
0141-3910(1998)61:3<367:PBONS->2.0.ZU;2-6
Abstract
The photochemical behaviour of orange, red and blue mono azo dyes, whi ch were distributed into fibroin macromolecules has been investigated in this study. Some of the samples were treated with a UV-absorber. Th e extent of photofading was evaluated by means of the colour differenc e Delta E. A linear correlation between Delta E and the content of car bonyl groups with high coefficient of correlation (R=0.99) was obtaine d. New experimental evidence for the photoreduction mechanism of azo d yes in silk fibers was established. (C) 1998 Elsevier Science Limited. All rights reserved.