Photographic method using a light sensitive visible image-bearing masking layer which includes an anti-halation layer

Claim 1

A METHOD OF DIMINISHING FOGGING OF ULTRAVIOLET SENSITIVE MASTERS WHEN MAKING DIAZO PRINTS FROM SAID MASTERS WHICH COMPRISES PROVIDING A PHOTOGRAPHIC ELEMENT TO BE USED AS THE MASTER, SAID PHOTOGRAPHIC ELEMENT COMPRISING IN COMBINATION A PHOTOGRAPHIC SUPPORT LAYER, A PHOTOSENSITIVE COMPOSITION LAYER COATED ON ONE SIDE OF SAID SUPPORT LAYER AND AN ULTRAVIOLET ABSORBING LAYER COATED ON THE OPPOSITE SIDE OF SAID SUPPORT LAYER, SAID PHOTOSENSITIVE COMPOSITION CONSISTING ESSENTIALLY OF AN N-VINYLAMINE AND A HALOGEN CONTAINING ORGANIC COMPOUND REPRESENTED BY THE GENERAL FORMULA A-C-X3 WHEREIN A IS SELECTED FROM THE GROUP CONSISTING OF H, CL, BR, I, ALKYL, ARYL AND ARALKYL AND EACH X IS SELECTED FROM THE GROUP CONSISTING OF CL, BR AND I; PREPARING A MASTER FROM SAID PHOTOGRAPHIC ELEMENT BY PHOTOGRAPHICALLY EXPOSING THE PHOTOSENSITIVE COMPOSITION THEREON TO A SUITABLE DOSE OF RADIATION TO PRODUCE A LATENT IMAGE IN SAID LAYER; DEVELOPING A VISIBLE IMAGE IN SAID LAYER BY GENTLY HEATING THE SAME; AND THEN PREVENTING FOGGING OF SAID MASTERS DURING THE MAKING OF DIAZO PRINTS FROM SAID MASTERS BY POSITIONING SAID PHOTOGRAPHIC ELEMENT DURING THE EXPOSURE USED FOR THE MAKING OF DIAZO PRINTS SO THAT THE ULTRAVIOLET ABSORBING LAYER IS POSITIONED BETWEEN SAID IMAGE BEARING LAYER AND THE ILUMINATION PROVIDED FOR MAKING SAID DIAZO PRINTS.

Claim 2

A METHOD OF DIMINISHING FOGGING OF ULTRAVIOLET SENSITIVE MASTERS WHEN MAKING DIAZO PRINTS FROM SAID MASTERS WHICH COMPRISES PROVIDING A PHOTOGRAPHIC ELEMENT TO BE USED AS THE MASTER, SAID PHOTOGRAPHIC ELEMENT COMPRISING IN COMBINATION A PHOTOGRAPHIC SUPPORT LAYER, A PHOTOSENSITIVE COMPOSITION LAYER COATED ON ONE SIDE OF SAID SUPPORT LAYER AND AN ULTRAVIOLET ABSORBING LAYER COATED ON THE OPPOSITE SIDE OF SAID SUPPORT LAYER, SAID PHOTOSENSITIVE COMPOSITION CONSISTING ESSENTIALLY OF AN N-VINYLAMINE AND A HALOGEN CONTAINING ORGANIC COMPOUND REPRESENTED BY THE GENERAL FORMULA A-C-X3 WHEREIN A IS SELECTED FROM THE GROUP CONSISTING OF H, CL, BR, I, ALKYL, ARYL AND ARALKYL AND EACH X IS SELECTED FROM THE GROUP CONSISTING OF CL, BR AND I; PREPARING A MASTER FROM SAID PHOTOGRAPHIC ELEMENT BY PHOTOGRAPHICALLY EXPOSING THE PHOTOSENSITIVE COMPOSITION THEREON TO A SUITABLE DOSE OF RADIATION TO PRODUCE A LATENT IMAGE IN SAID LAYER; DEVELOPING A VISIBLE IMAGE IN SAID LAYER BY GENTLY HEATING THE SAME; AND THEN PREVENTING FOGGING OF SAID MASTERS DURING THE MAKING OF DIAZO PRINTS FROM SAID MASTERS BY POSITIONING SAID PHOTOGRAPHIC ELEMENT DURING THE EXPOSURE USED FOR THE MAKING OF DIAZO PRINTS SO THAT THE ULTRAVIOLET ABSORBING LAYER IS POSITIONED BETWEEN SAID IMAGE BEARING LAYER AND THE ILUMINATION PROVIDED FOR MAKING SAID DIAZO PRINTS.