Developing solutions for 2-component diazo-type materials

Details Developing solutions for 2-component diazo-type materials Developing solutions for 2-component diazo-type materials

1976-11-15

1978-05-23

Klein, David

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 75, 96 91R, G03C 534, G03C 158

Patent

active

040908798

ABSTRACT:
A new and improved developing solution for two-component light-sensitive diazo-type copying materials is described. The solution is a substituted organic diamine formulation which produces dry, high quality diazo prints rapidly, replacing conventional dry ammonia gas systems. The preferred diamine is N-(2-hydroxyethyl)-ethylenediamine alone or with diethylaminopropylamine.

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patent: 3764326 (1973-10-01), Yoshida et al.
patent: 3809560 (1974-05-01), Neuman

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