MISTURA SENSIVEL A LUZ E MATERIAL DE COPIA COM ELA PREPARADO

The invention relates to a photosensitive mixture which essentially contains a naphthoquinonediazidosulphonic ester, a resin-like binder soluble in aqueous alkaline solutions and an organic dye capable of salt formation. The mixture contains a 1,2- naphthoquinonediazidosulphonic ester of the general...

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Bibliographische Detailangaben
Hauptverfasser:	FRITZ ERDMANN, PAUL STAHLHOFEN
Format:	Patent
Sprache:	por
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY MATERIALS THEREFOR ORIGINALS THEREFOR PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS
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Beschreibung
Zusammenfassung:	The invention relates to a photosensitive mixture which essentially contains a naphthoquinonediazidosulphonic ester, a resin-like binder soluble in aqueous alkaline solutions and an organic dye capable of salt formation. The mixture contains a 1,2- naphthoquinonediazidosulphonic ester of the general formula R1 denotes H, NO2, alkyl or alkoxy, each having up to 4 carbon atoms, halogen and/or O-SO2-D and R2 denotes a trihaloalkyl radical. The photosensitive mixture has high photosensitivity and is strongly acidic after exposure to light, which leads to very good contrast owing to the colour change of the indicator.