Photographic transfer process

Claim 1

A METHOD OF PHOTOGRAPHIC REPRODUCTION WHICH COMPRISES EXPOSING TO A TWO-TONE SUBJECT A SUBSTANTIALLY UNHARDENED GELATINO-SILVER HALIDE EMULSION LAYER CONTAINING A MIXTURE OF A DEVELOPING AGENT OF THE CLASS CONSISTING OF 3,4-DIHYDROXY DIPHENYL, 2,5-DIHYDROXY DIPHENYL AND 2,3-DIHYDROXY DIPHENYL, AND A DEVELOPING AGENT OF THE CLASS CONSISTING OF N-METHYL-P-AMONOPHENOL-X-SULFONIC ACID, P-HYDROXY-ANILINO-METHANE SULFONIC ACID, PYROGALLOL DIMETHYL ETHER, 8-HYDROXY-A-NAPHTHOL AND 4METHOXY-ANAPHTHOL, SAID EMULSION LAYER BEING NOT HARDER THAN A GELATIN LAYER CONTAINING 0.7 GRAM OF FORMALDEHYDE PER POUND OF GELATIN FRESHLY COATED, DEVELOPING THE EXPOSED EMULSION LAYER WITH AN ALKALINE SOLUTION TO OBTAIN A HARDENED GELATING AND SILVER IMAGE IN THE REGION OF EXPOSURE TO THE HIGH-LIGHT AREA OF THE SUBJECT AND SUBSTANTIALLY UNHARDENED GELATIN, SILVER AND SILVER HALIDE IN THE REGION OF THE IMULSION LAYER CORRESPONDING TO THE SHADOW REGION OF THE SUBJECT. PRESSING A SHEET HAVING AN ABSORBENT SURFACE AGAINST SAID EMULSION LAYER WHILE SAID EMULSION LAYER IS MOIST TO CAUSE ONLY THE SHADOW REGION OF THE EMULSION TO ADHERE TO SAID SHEET, AND SEPARATING SAID SHEET AND EMULSION LAYER TO TRANSFER ONLY A STRATUM OF SAID SHADOW REGION OF THE EMULSION LAYER TO SAID SHEET.