Photographic polyester film support

Details Photographic polyester film support Photographic polyester film support

1978-08-30

1980-03-04

Person, Sandra M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

430521, C08K 508, G03C 184

Patent

active

041916794

ABSTRACT:
A photographic polyester film support which is dyed with (a) a dye having a main absorption peak in the wavelength range of about 530 to about 570 nm, (b) a dye having a main absorption peak in the wavelength range of about 640 to about 680 nm and (c) a dye having a main absorption peak in the wavelength range of about 420 to about 460 nm which is represented by the formula (I) below: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6, which may be the same or different, each represents --H, --OH, --NH.sub.2, --NHR.sub.7, --NR.sub.7 R.sub.8, --Cl, --Br, an alkyl group having 4 or less carbon atoms or an alkoxy group having 4 or less carbon atoms; and R.sub.7 and R.sub.8, which may be the same or different, each represents an alkyl group having 4 or less carbon atoms or an aryl group.

REFERENCES:
patent: 3413257 (1968-11-01), Bowman et al.
patent: 3720693 (1973-03-01), Peters
patent: 3741995 (1973-06-01), Pugin et al.
patent: 3849139 (1974-11-01), Hibino et al.
patent: 3853807 (1974-12-01), Hunter

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