COATING TYPE MAGNETIC RECORDING MEDIUM

• Main Authors: YAMAGA MINORU, INOMATA KOJI
• Format: Patent
• Language: English
• Published: 13.12.1996
• Edition: 6
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PHYSICS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

PURPOSE: To obtain a magnetic recording medium capable of improving both electromagnetic transducing characteristics and running performance. CONSTITUTION: When a magnetic layer is formed on the surface of a base film by coating with a magnetic coating material, the ratio (PλL/PλS) of the mean (PλL) of power of 10-50μm wavelength component on the surface of the base film to the mean (PλS) of power of 1-5μm wavelength component is <=7. The center line average roughness Ra is regulated to <=0.007μm.