Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1989-11-17
1991-10-15
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430230, 430233, 430232, 430244, 430249, 430251, 430965, G03C 554
Patent
active
050573950
ABSTRACT:
Disclosed is a silver complex diffusion transfer process which comprises processing a photosensitve material comprising a support and at least a silver halide emulsion layer provided thereon and an image receiving material comprising a support and at least an image receiving layer provided thereon which are brought into close contact with each other in a developing processing solution. This process is characterized in that said image receiving layer has 1-3 g/m.sup.2 of a hydrophilic colloid at least 80% by weight of which is gelatin; total amount of hydrophilic colloid present on the emulsion layer side of the photosensitive material is 5-8 g/m.sup.2 ; when the materials are immersed in a 0.1N aqueous sodium hydroxide solution at 20.degree. C. for 1 minute, amount of absorbed solution per 1 g of hydrophilic colloid is 3.5-7 ml of the emulsion layer side of the photosensitive material and is 2-4 ml on the image receiving layer side of the image receiving material and the processing of the materials in the developing processing solution is carried out in the presence of at least one of 1-aryl or aralkyl substiuted-5-mercaptotetrazoles and at least one of 4-amino-3-unsubstituted or C.sub.1-3 alkyl substituted-5-mercapto-1,2,4-triazoles.
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Baba Susumu
Tsubai Yasuo
Yoshida Akio
Mitsubishi Paper Mills Limited
Schilling Richard L.
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