Solid particle dispersions of filter dyes for photographic elements.

摘要

Solid particle dispersions of dyes according to the formula: <CHEM> wherein D is selected from the group consisting of <CHEM> and ketomethylene nuclei are disclosed as filter dyes for photographic elements. In this formula, E<1> and E<2> are each independently electron withdrawing groups. R<1> and R<6> are each independently R or NHR, where R is substituted or unsubstituted aryl. R<2> and R<3> are each independently substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or represent the carbon atoms necessary to form a fused ring with the phenyl ring to which the N atom is attached. R<4> and R<7> are each independently hydrogen, substituted or unsubstituted alkyl or substituted or unsubstituted aryl. R<5> is substituted or unsubstituted alkyl. Z represents the atoms necessary to complete a substituted or unsubstituted 5 or 6 membered are each independently substituted or unsubstituted methine groups. m is 0, 1, 2, or 3. n is 0 or 1. p is 0, 1, 2, 3, or 4. q is 0, 1, 2, or 3. At least one of R<1> or D includes an aryl ring substituted with a carboxy or sulfonamido substituent.