DIAZO-TYPE RECORDING MATERIAL

摘要

PURPOSE:To provide a diazo-type recording material which hardly causes contamination in the base and has better raw preservability than conventional material and high thermal sensitivity. CONSTITUTION:This recording material consists of a supporting body and a recording layer containing a photosensitive diazo compd. sealed in microcapsules and a coupling component which develops colors by the reaction with the diazo compd. in a basic atmosphere by heating. The microcapsule is obtd. by emulsion polymn. of oil drops containing monomers as a material to form walls of microcapsules with using polyvinyl alcohol and anion surfactant. The coating liquid applied to form the recording layer contains a cation surfactant.