Tear tape adapted for complete sealing of package overwrap

Details Tear tape adapted for complete sealing of package overwrap Tear tape adapted for complete sealing of package overwrap

1996-05-31

1998-09-15

Johnson, Linda

Package making

Methods

Forming a cover adjunct or application of a cover adjunct to...

53463, 53477, B65B 6118

Patent

active

058062815

ABSTRACT:
A packaged product includes an overwrap material wrapped around the product and overlapped to form a seam bonded to prevent ingress of moisture and a tear tape to tear the overwrap material. The tear tape has a first pressure sensitive layer for bonding to the overwrap and a second layer opposite the first having characteristics such that it acts as a release coat to inhibit bonding of the tear tape to itself and such that it acts to bond the substrate to the overwrap material. The second layer converts by heat from the release coat condition to the bonding condition by being absorbed into the first sub-layer or by including a hard rough surface arranged to inhibit bonding to the first layer which is melted.

REFERENCES:
patent: 3881041 (1975-04-01), Glienke
patent: 4887408 (1989-12-01), Mattei et al.
patent: 5203935 (1993-04-01), May et al.
patent: 5273805 (1993-12-01), Calhoun et al.
patent: 5496636 (1996-03-01), Gu et al.

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