Patent ID: 6330130
Filing Date: 2001-12-11
Classification: G11B

Abstract:
In a disk cartridge comprising:a rotatable disk having upper and lower surfaces:an outer casing for rotatably housing said disk, said casing comprising upper and lower shells that mate to form said casing, each of said upper and lower shells having an inner surface disposed in facing relation to a respective surface of said disk; anda non-woven fabric liner comprising a plurality of fibers, said fabric liner being attached to the inner surface of one of said upper and lower shells, a main body of said fabric liner lying against the inner surface of said one shell and being spaced a predetermined distance from the respective surface of said disk,the improvement wherein said liner is a polyester material having round fiber which vary in diameter along the length of each fiber; wherein said fibers are bonded, the bonds between a plurality of fibers in a region of the liner being loosened by a fuzzing process to create a region of loosened unbonded upstanding fibers, wherein some of said loosened unbonded upstanding fibers are individually unbonded from other fibers and the loosened unbonded upstanding fibers extend from the main body of said liner to the surface of said disk, whereby said loosened unbonded upstanding fibers wipe the surface of said disk while the main body of the liner remains spaced from said disk thereby reducing drag on said disk.