Process for forming dye images

Abstract

Abstract A PROCESS FOR FORMING DYE IMAGES COMPRISING FORMING ELECTROSTATIC LATENT IMAGES ON A SHEET COMPRISING AN ELECTROPHOTOGRAPHIC SENSITIVE LAYER COMPOSED OF A FINELYDIVIDED ZINC OXIDE PHOTOCONDUCTIVE POWDER AND AN INSULATING RESIN ON A WATER-RESISTANT SUPPORT AND CONVERTING SAID LATENT IMAGES INTO GELATIN IMAGES BY DEVELOPING WITH AND ELECTROPHOTOGRAPHIC DEVELOPER CONTAINING A FINELYDIVIDED GELATIN POWDER, FIXING SAID GELATIN IMAGES AND HARDENING SAID GELATIN IMAGES ON SAID SHEET, REMOVING SAID PHOTOCONDUCTIVE ZINC OXIDE IN SAID ELECTROPHOTOGRAPHIC SENSITIVE LAYER ON SAID SHEET AND WASHING SAID ELECTROPHOTOGRAPHIC SENSITIVE LAYER ON SAID SHEET WITH WATER, SOAKING SAID SHEET IN AN ORGANIC SOLVENT WHICH DOES NOT DISSOLVE SAID WATER-RESISTANT SUPPORT AND SAID INSULATING RESIN, PLACING SAID SHEET WETTED BY SAID SOLVENT SO AS TO CLOSELY CONTACT THE SUPPORT SIDE WITH A METAL PLATE MAINTAINED AT A TEMPERATURE RANGING FROM A MAXIMUM OF 60*C. ABOVE TO A MINIMUM OF 20*C. BELOW THE BOILING POINT OF SAID SOLVENT, WHEREBY SAID ORGANIC SOLVENT IS EVAPORATED, CONTACTING SAID GELATIN IMAGES ON SAID SHEET WITH AN AQUEOUS DYE SOLUTION WHEREBY THE DYE IS ABSORBED INTO THE GELATIN IMAGES, REMOVING EXCESS DYE SOLUTION FROM SAID GELATIN IMAGES ON SAID SHEET BY WASHING SAID SHEET WITH AN ACID AQUEOUS SOLUTION, AND CONTACTING SAID GELATIN IMAGES WITH A DYE RECEPTIVE LAYER, WHEREBY SAID DYE IS TRANSFERRED FROM SAID GELATIN IMAGES TO SAID DYE RECEPTIVE LAYER, IS DISCLOSED.

Inventors

• 👤 S Osawa
• 👤 Y Tamai
• 👤 M Takimoto

Bibliographic Details