首页>
外国专利>
POLISHING TAPE FOR PHOTOGRAPHIC MAGNETIC INFORMATION READER, POLISHING TAPE PACKAGE FOR PHOTOGRAPHIC MAGNETIC INFORMATION READER AND METHOD FOR CLEANING PHOTOGRAPHIC MAGNETIC INFORMATION READER USING THE SAME
POLISHING TAPE FOR PHOTOGRAPHIC MAGNETIC INFORMATION READER, POLISHING TAPE PACKAGE FOR PHOTOGRAPHIC MAGNETIC INFORMATION READER AND METHOD FOR CLEANING PHOTOGRAPHIC MAGNETIC INFORMATION READER USING THE SAME
PURPOSE: To decrease the reading errors of magnetic recording information by regulating the thickness of a polyester base, providing one side of this base with a polishing layer regulated in polishability and providing the opposite side across the base with a gelatin layer regulated in a dry film thickness. ;CONSTITUTION: A polishing tape 102 for photographic magnetic information readers formed by providing the one side of the polyester base having a thickness of ≥50 to ≤150μm with the polishing layer having the polishability of ≥90(nm/m) (by a Vickers method) and consisting of a layer having at least gelatin on the layer on the opposite side across the base and having the dry film thickness thereof of ≥5 to ≤150μm is prepd. A spool 103 wound with this polishing tape 102 is freely rotatably housed in a cartridge body 101. The front end of the polishing tape 102 is made freely deliverable to the outside of the cartridge by rotation of this spool 103. This cartridge body 101 has a passage for delivering the polishing tape 102. Flanges 113, 114 having respectively a pair of lips are mounted on the inner side at both ends of the spool shaft 112 of the spool 103 for the purpose of holding the polishing tape 102.;COPYRIGHT: (C)1996,JPO
展开▼
