BLACK COLOR FORMING THERMODEVELOPED DIAZO TYPE RECORDING BODY

PURPOSE:To obtain a black color forming thermodeveloped diazo type recording material with a preservation stability free from variation in the hue of dye due to changes in heat energy by combining specified alpha and beta naphthol derivatives properly. CONSTITUTION:A recording layer which has a diaz...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	NEMOTO SHIROU, WATANABE JIROU
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY COLOUR PRINTING ELECTROGRAPHY HOLOGRAPHY LINING MACHINES PERFORMING OPERATIONS PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TRANSPORTING TYPEWRITERS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE:To obtain a black color forming thermodeveloped diazo type recording material with a preservation stability free from variation in the hue of dye due to changes in heat energy by combining specified alpha and beta naphthol derivatives properly. CONSTITUTION:A recording layer which has a diazonium fluoroborate, yellow and blue coupling agent made of alpha and beta naphthol derivatives, a salt of alkyl substituted guanidine as acid stabilizer and thermodeveloper as basic recording structure elements is provided on a support. Then, the blue coupling agent shall be as given by the formulas I and II. The thermodeveloper shall be polybasic acid with the primary dissociation constant of 2X10-1X10 and a compound of the formula III. The black color forming thermodeveloped diazo type recording body thus obtained has a preservation stability, a thermal color formation sensitivity, a chemical resistance and a black color formability.