Structure of a developer liquid to the revelacao material from the type diazoico two components and process for reproducao an original material copy of type two component diazoico

摘要

1373250 Developing diazotype materials ADDRESSOGRAPH-MULTIGRAPH CORP 18 Nov 1971 [26 March 1971] 53684/71 Heading G2C A liquid developer for developing exposed two component diazotype material comprises 1-20 wt per cent of a fatty carboxylic acid having 16 to 18 carbon atoms and from 20-80 wt per cent of morpholine, piperidine or an alkyl morpholine or an alkyl piperidine, diethylenetriamine, N- aminoethylethanolamine or an amine of formula:- wherein R 1 is alkyl, cycloalkyl, alkaryl, alkylol, alkoxy or alkylolalkoxy and R 2 and R 3 are any of the groups specified for R 1 or hydrogen dissolved with or without water by a monohydric alcohol with at least 6 C atoms, a poly-hydric alcohol or a glycolether. The developer may be as disclosed in Specification 1143703 with oleic, stearic, psalmitic or a octadeca-(di or tri) enoic acid added. The developer may be used in the apparatus of Specification 1143702, the acid allowing more uniform distribution of the liquid.