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Browse Prior Art Database

Cover Paper on Adhesive Dot Package

IP.com Disclosure Number: IPCOM000043655D
Original Publication Date: 1984-Sep-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Levardo, MM: AUTHOR [+2]

Abstract

With the development of thin and densely recorded magnetic tapes it has become essential that the shape of the tape be substantially undisturbed. The attachment of the end of tape to a reel became a problem because normal adhesive connections to the reel created a bump on the reel surface which created "print-through" in the thin tape, thereby distorting the surface of the tape at positions where it overlay the adhesive connections. The problem of "print-through" was substantially overcome by depositing a small, thin, adhesive dot on the surface of the reel. The dot was placed on the reel by transference from an adhesive carrier. Of course, to protect the dot during handling it was necessary to cover the dot with a protective cover.

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Cover Paper on Adhesive Dot Package

With the development of thin and densely recorded magnetic tapes it has become essential that the shape of the tape be substantially undisturbed. The attachment of the end of tape to a reel became a problem because normal adhesive connections to the reel created a bump on the reel surface which created "print-through" in the thin tape, thereby distorting the surface of the tape at positions where it overlay the adhesive connections. The problem of "print- through" was substantially overcome by depositing a small, thin, adhesive dot on the surface of the reel. The dot was placed on the reel by transference from an adhesive carrier. Of course, to protect the dot during handling it was necessary to cover the dot with a protective cover. However, in order for the dot to transfer to the reel when the carrier was placed adjacent the reel, it was necessary to use an adhesive dot material that would bond more strongly to the reel than to the carrier. This created the problem that the adhesive dot material sometimes came off with the protective cover when the protective cover was removed. This problem was most apparent when the protective cover was made the same size as the adhesive dot because the adhesive dot tended to bond to the cover at the edges of the dot and cover. This problem of edge bonding and adherence of the dot to the cover is overcome by making the protective cover substantially larger than the adhesive dot. The figure b...