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Tape Reel Wrapper For Preventing Interlayer Slippage

IP.com Disclosure Number: IPCOM000066648D
Original Publication Date: 1979-Apr-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Lee, MS [+details]

Abstract

The interlayer slippage in magnetic tape arises from anisotropic coefficient of thermal expansion and viscoelastic behavior of the tape media. The expansion coefficient of the media is greater in the thickness direction than in the length direction. As the storage area temperature of the tape reels changes, the difference rates produce large interstack stresses which will reduce the tape tension generated by the previous tape winding. As a result, a permanent deformation and crease, generated in the outer wrap of tape, results in a loss of recorded information.