waermeentwickelbates diazotypie - lichtdruckmaterial

摘要

1,230,602. Heat-developable diazotype materials. RICOH K. K. July 29, 1968, [July 31, 1967], No.36083/68. Heading G2C. A heat-developable diazotype material which comprises a support, a layer containing a diazonium compound and an azo coupler, and a layer containing fine particles of a salt of a trichologenated acetic acid and a nitrogen-containing base dispersed in a thermoplastic binder. Specified nitrogen-containing bases are alkylamines, alkanolamines, analkylamines, cycloalkylamines, hydroxyalkylamines, guanidines, morpholine, piperidine and picoline and ammonium ion.