PHOTOGRAPHIC MATERIAL

PURPOSE: To obtain a coating layer capable of preventing sparking and having a mechanical strength required from the mechanical stress produced by a magnetic head by arranging an antistatic layer of photothiophene below or above a transparent magnetic layer. CONSTITUTION: An antistatic layer of poly...

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Bibliographische Detailangaben
Hauptverfasser:	BERUNAA KURAFUTO, PUREMU RARUBANI, UIREMU MIYUUSU, FURIIDORIHI YONASU, HARUTOBIHI ANDORIISU
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AUXILIARY PROCESSES IN PHOTOGRAPHY CHEMICAL PAINT OR INK REMOVERS CHEMISTRY CINEMATOGRAPHY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES ELECTROGRAPHY FILLING PASTES HOLOGRAPHY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PURPOSE: To obtain a coating layer capable of preventing sparking and having a mechanical strength required from the mechanical stress produced by a magnetic head by arranging an antistatic layer of photothiophene below or above a transparent magnetic layer. CONSTITUTION: An antistatic layer of polythiophene is arranged below or above a transparent magnetic layer, and the material is formed with a transparent film substrate having at least one photosensitive layer on the front and the transparent magnetic layer on the rear. The polythiophene should be polyethylene dioxy thiophene, and the polythiophene contains the anion of polycarboxylic acid or polysulfonic acid. More preferably, the magnetic layer contains γ-Fe2 O3 as a magnetic pigment, and the γ-Fe2 O3 is doped or surface-treated with cobalt.