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Yamamoto Kogyosho KK
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Yamamoto Kogyosho KK
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Publication of GB1339085ApublicationCriticalpatent/GB1339085A/en
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
G03C5/18—Diazo-type processes, e.g. thermal development, or agents therefor
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography
(AREA)
Heat Sensitive Colour Forming Recording
(AREA)
Abstract
1339085 Developing diazotype compositions YAMAMOTO KOGYOSHO K K 9 Nov 1971 51929/71 Heading G2C A liquid developer for exposed two-component diazotype material comprises monoethanolamine and 5-15 wt per cent, based on monoethanolamine, of ethylene diamine. The developer may also contain water, an anti-oxidant, gelatine, polyvinyl alcohol or carboxymethyl cellulose. The developer may be impregnated on to a sheet or pad of material which is absorbent and not attacked by alkali. Heat may be applied during development.
GB1339085D1971-11-091971-11-09Liquid developing composition for the diazotype process
ExpiredGB1339085A
(en)