Tape cassette with a trapping layer having a corrosiveness which

Details Tape cassette with a trapping layer having a corrosiveness which Tape cassette with a trapping layer having a corrosiveness which

1989-02-10

1991-06-11

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Record medium

In container

360137, 242199, G11B 2302

Patent

active

050237390

ABSTRACT:
A tape cassette for a magnetic recording tape having metallic magnetic recording layer is provided with a gas trapping layer which is disposed on a portion of the cassette near the path of the magnetic recording tape stretched between a pair of reels. The trapping layer has a trapping tendency which is at least equivalent to that of the magnetic recording tape. Any corrosive gas components coming into the cassette is adsorbed by and made to react with the trapping layer so as to reduce the concentration of the corrosive gas reaching the metallic magnetic recording layer, thus preventing degradation of the magnetic recording layer and ensuring that recording is conducted with high recording density.

REFERENCES:
patent: 4170788 (1979-10-01), Hashimoto et al.
patent: 4467382 (1984-08-01), Huisman
patent: 4765563 (1988-08-01), Satoyoshi et al.
patent: 4769730 (1988-09-01), Okamura et al.
patent: 4775911 (1988-10-01), Sato et al.
IEEE Transactions on Magnetics, vol. 26, No. 1, Jan. 1990, "Corrosion of Particulate and Thin Film Media" by D. B. Speliotis.

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