Use of indolenine-cyanine dyestuffs

Details Use of indolenine-cyanine dyestuffs Use of indolenine-cyanine dyestuffs

G - Physics

03

C

G03C 1/20 (2006.01) G03C 1/83 (2006.01)

Patent

CA 2147450

The present invention relates to the use of dyestuffs of the general formula I Image (I) in which R1 and R2 and M? are as defined in Claim 1, as infrared- absorbing agents in photographic recording materials based on silver halide, and to photographic recording materials based on silver halide comprising dyestuffs of the general formula I.

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