Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1991-10-15
1994-05-10
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record medium
In container
28104, 206444, 428288, 428290, 428299, G11B 2303, G11B 2350, D04H 158, B32B 506
Patent
active
053113896
ABSTRACT:
A nonwoven liner for a diskette cartridge is made of hydroentangled fibers and impregnated with a small amount of binder which is uniformly distributed throughout the fabric. The binder comprises no more than 5% by weight and preferably between 1.5-3.0% by weight of the fabric. The low concentration of binder ensures that the liner surface does not become totally coated with plastic film that reduces cleaning ability, while also providing improvements in tensile strength and debris reduction. The binder solution preferably has a high surface tension (low surfactant level), so that the binder becomes concentrated at the junction points of the fibers throughout the fabric. The low level of surfactant ensures a low risk of chemical attack of the disk media surface. The hydroentangled fabric cleans the disk media more efficiently, has less fiber debris, contains less environmental contaminants, is substantially loftier, and is cut with cleaner edges than standard thermally bonded diskette liners.
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Evans Jefferson
Heinz A. J.
International Paper Company
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