Photographic reliefs made by means of transfer intermediaries which produce gas upon irradiation

Claim 1

A METHOD OF PRODUCING A RELIEF IMAGE COMPRISING DISPERSING A MATRIX MATERIAL SELECTED FROM THE GROUP CONSISTING OF GELATIN AND GLUE IN WATER, DISSOLVING IN THE WATER OF THIS DISPERSION A SENSITIZER CAPABLE OF LIBERATING GAS UPON EXPOSURE TO RADIATION, APPLYING THE THUS SENSIPERSION TO AN INDUARTED RIGID PHOTO-SENSITIVE RECORD MEDIUM, EXPOSING SAID MEDIUM TO LIGHT SO AS TO FORM IN THE SHEET A RECORD OF THE IMAGE IN TERMS OF GAS SOURCES WHICH ARE RESTRAINED FROM EFFECTIVELY EXPANDING BY THE SAID RIGID CONDITION OF SAIID RECORD MEDIUM, CONTACTING THE RECORD MEDIUM WITH A THERMOPLASTIC RECEPTOR SHEET COMPRISING A THERMOPLASTIC CELLULOSE ESTER WHICH BECOMES SOFTENED UNDER CONDITIONS OF TEMPERATURE AND PRESSURE SUBSTANTIALLY THE SAME AS BUT SOMEWHAT LOWER THAN DOES SAID RECORD MEDIUM PRESSUURABLY RESTRAINING SAID RECORD MEDIUM AND SAID RECEPTOR IN CONTACT BETWEEN RIGID PLATENS, HEATING THE RESULTING SANDWICH TO SOFTEN THE SAID RECORD MEDIUM AND SAID THERMOPLASTIC RECEPTOR SHEET WHILE ESPANDING THE GAS WITHIN THE EXPOSED AREAS OF THE SAID RECORD MEDIUM TO DEVELOP A RELIEF IMAGE IN SAID RECORD MEDIUM AND IMPRESS A COMPLEMENTARY RELIEF IMAGE IN SAID THERMOPLASTIC RECEPTOR SHEET, AND COOLING THE SAND WICH TO INDURATE THE RESPECTIVE LAYERS, WHEREUPON THEY CAN BE SEPARATED, EACH CARRYING SAID IMAGES IN TERMS OF RELIEF.

Claim 2

A METHOD OF PRODUCING A RELIEF IMAGE COMPRISING DISPERSING A MATRIX MATERIAL SELECTED FROM THE GROUP CONSISTING OF GELATIN AND GLUE IN WATER, DISSOLVING IN THE WATER OF THIS DISPERSION A SENSITIZER CAPABLE OF LIBERATING GAS UPON EXPOSURE TO RADIATION, APPLYING THE THUS SENSIPERSION TO AN INDUARTED RIGID PHOTO-SENSITIVE RECORD MEDIUM, EXPOSING SAID MEDIUM TO LIGHT SO AS TO FORM IN THE SHEET A RECORD OF THE IMAGE IN TERMS OF GAS SOURCES WHICH ARE RESTRAINED FROM EFFECTIVELY EXPANDING BY THE SAID RIGID CONDITION OF SAIID RECORD MEDIUM, CONTACTING THE RECORD MEDIUM WITH A THERMOPLASTIC RECEPTOR SHEET COMPRISING A THERMOPLASTIC CELLULOSE ESTER WHICH BECOMES SOFTENED UNDER CONDITIONS OF TEMPERATURE AND PRESSURE SUBSTANTIALLY THE SAME AS BUT SOMEWHAT LOWER THAN DOES SAID RECORD MEDIUM PRESSUURABLY RESTRAINING SAID RECORD MEDIUM AND SAID RECEPTOR IN CONTACT BETWEEN RIGID PLATENS, HEATING THE RESULTING SANDWICH TO SOFTEN THE SAID RECORD MEDIUM AND SAID THERMOPLASTIC RECEPTOR SHEET WHILE ESPANDING THE GAS WITHIN THE EXPOSED AREAS OF THE SAID RECORD MEDIUM TO DEVELOP A RELIEF IMAGE IN SAID RECORD MEDIUM AND IMPRESS A COMPLEMENTARY RELIEF IMAGE IN SAID THERMOPLASTIC RECEPTOR SHEET, AND COOLING THE SAND WICH TO INDURATE THE RESPECTIVE LAYERS, WHEREUPON THEY CAN BE SEPARATED, EACH CARRYING SAID IMAGES IN TERMS OF RELIEF.