| 摘要 |
PURPOSE:To improve the characteristic to medium, the sticking characteristic, or the like by forming the medium-side layer, which faces a magnetic disk, of a cleaning sheet with a non-woven fabric layer essentially consisting of acrylic fibers and providing an intermediate layer connecting the medium-side non-woven fabric layer and a case-side non-woven fabric layer. CONSTITUTION:A cleaning sheet 3 has a medium-side non-woven fabric layer 15 which is provided on the side facing a disk 2 and consists of non-woven fabric essentially consisting of acrylic fibers, a case-side non-woven fabric layer 16 which faces the inside face of a cartridge case 1 and includes fibers at least a part of which is buried in the inside face of the cartridge case 1 while being kept in a form of fibers, and an intermediate layer 17 which connects the medium-side non-woven fabric layer 15 and the case-side non-woven fabric layer 16. Since the medium-side non-woven fabric layer and the case-side non- woven fabric layer are satisfactorily joined because of interposition of the intermediate layer, the unified cleaning sheet which is not peeled is obtained. Thus, the cleaning sheet is superior in characteristics such as the characteristic to medium and the sticking characteristic.
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