Printing matrix made by a colloid transfer process

Claim 1

THE PROCESS FOR PREPARING A PRINTING MATRIX WITH A PHOTOSENSITIVE ELEMENT HAVING A SUPPORT, A POLYMER-CONTAINING LAYER COMPRISING AN ORGANIC OLEOPHILLIC POLYMER COMPATIBLE WITH A SILVER HALIDE EMULSION AND SOLUBLE IN AN ORGANIC SOLVENT, AT LEAST AS IMMISCILBE IN WATER AS N-BUTANOL, CONTAINING DISPERSED THEREIN A GELATIN TANNING SILVER HALIDE DEVELOPING AGENT ANS AT LEAST ON PHOTO GRAPHICALLY INERT PIGMENT, AND COATED OVER SAID POLYMERCONTAINING LAYER A PHOTOGRAPHIC UNHARDENED GELATINOSILVER HALIDE EMULSION LAYER, WHICH COMPRISES EXPOSING SAID GELATINO-SILVER HALIDE EMULSION LAYER FORM THE EMULSION LAYER SIDE OF SAID ELEMENT AND FORMING A LATENT IMAGE THEREIN, DEVELOPING SAID LATENT IMAGE TO FROM A HARDENED GELATINO-SILVER RESIST NEGATIVE IMAGE AREA IN SAID GELATINOSILVER HALIDE EMULSION LAYER BY ACTIVATING SAID TANNING DEVELOPING AGENT IN SAID POLYMER-CONTAINING LAYER WITH AN AQUEOUS ALKALINE SOLUTION, PRESSING IN CONTACT WITH THE RESULTING DEVELOPED GELATINO-SILVER HALIDE EMULSION LAYER A RECEIVING ELEMENT HAVING AN ABOSRBENT SURFACE, SEPARATING SAID RECEIVING ELEMENT FROM SAID DEVELOPED GELATINOSILVER HALIDE EMULSION LAYER AND TRANSFERRING SUBSTANTIALLY ALL UNEXPOSED AND UNDEVELOPED GELATINO-SILVER HALIDE EMULSION FROM SAID DEVELOPED GELATINO-SILVER HALIDE EMULSION LAYER TO SAID RECEIVING ELEMENT LEAVING EXPOSED TO THE SURFACE OF THE RESULTING PRINTING MATRIX SAID POLYMER-CON TAINING LAYER AS A POSITIVE IMAGE AREA.