MEHRSCHICHTIGES AUFZEICHNUNGSMATERIAL FUER OPTISCHE INFORMATIONEN

摘要

A multilayer recording material which can be recorded on once and is intended for optical information and its production process are described. The recording material essentially consists of a substrate and a layer of an unsubstituted naphthalocyanine dye and either carries a binder layer between these two layers or contains, over the dye, a binder layer which in turn has a dye layer. Laminate systems, in particular adhesively bonded laminates, composed of these multilayer recording materials are also described. …The materials and laminates according to the invention have high reflectivity and a lower write signal energy while maintaining a certain contrast ratio than comparable materials of the prior art.