Photographic colour diffusion transfer process and photographic recording material suitable therefor

Abstract

Abstract The oxidisable colouring compounds in the colour photographic recording material for the dye diffusion transfer process are nondiffusing compounds of the following formula: <IMAGE> where A is a photographically active group, for example a dye radical, X is a bridge member, m is 0 or 1, Y<1> and Y<2> are groups which are oxidisable to form a p-quinonoidal system, R<1> is a hydrocarbon radical, R<2> is H or a hydrocarbon radical, R<3> is a substituent such as R<2>, a grouping which together with R<4> completes a ring, OH, halogen, amino, acylamino, alkylthio, alkoxy, aroxy or sulpho, R<4> is a hydrocarbon radical or a grouping which together with R<3> completes a ring, R<5> is a hydrocarbon radical.h

Inventors

• 👤 Hans-Heinrich Dr. Credner
• 👤 Karl Küffner
• 👤 Wolfgang Dr. Lässig
• 👤 Ernst Meier

Bibliographic Details