Patent ID: 6767677
Filing Date: 2004-07-27
Classification: C09D,G03C,Y10S

Abstract:
A silver halide photographic display element comprising a support, a front side which has at least one silver halide emulsion layer, and a back side, said front and back sides being on opposite sides of the support; wherein said photographic element further comprises printed on the back side a printing ink composition comprising coalesced hydrophobic polymer particles having associated therewith a squarine infrared absorbing dye represented by formula (II): wherein R1, R2, R3, and R4 are independently a hydrogen or a halide atom, an alkylammonium (e.g., N(CH3)2, hydroxy or alkoxy group; an alkyl group having 1 to 20 carbon atoms a cycloalkyl group having 5 to 10 carbon atoms in the carbocyclic ring, an aryl group having 6 to 10 carbon atoms in the carbocyclic ring, or a heterocyclic group having 3 to 7 atoms in the ring and wherein R3 and R4 may be independently joined with the benzo groups to form a 5- to 7-membered ring or heterocyclic ring group.