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Raman Spectroscopic Investigation of Blue Contemporary Textiles
Author(s) -
Coupry Claude,
Sagon Gérard,
GorguetBallesteros Pascale
Publication year - 1997
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/(sici)1097-4555(199702)28:2/3<85::aid-jrs64>3.0.co;2-4
Subject(s) - raman spectroscopy , indigo , dyeing , planarity testing , molecule , chemistry , analytical chemistry (journal) , photochemistry , materials science , crystallography , optics , organic chemistry , physics
Reference (natural and synthetic) indigo samples were analysed by Raman spectrometry and only indigotin was detected. ‘Jeans’ refers to a specific garment with respect to both the dye, indigo, and the garment cut; from reference spectra of blue‐dyed fibres and threads from garments, it is straightforward to observe by Raman microspectrometry the spectra of dyes fixed on threads without chemical pretreatment. On these supports, the spectrum of indigotin shows extra bands assigned to vibrational modes of B u symmetry, indicating a loss of the centrosymmetry of the molecule and an alteration of its planarity due to the dyeing process. © 1997 by John Wiley & Sons, Ltd.