Method of making flapped envelope with peel-off strip for band o

Details Method of making flapped envelope with peel-off strip for band o Method of making flapped envelope with peel-off strip for band o

1989-10-13

1991-08-20

Terrell, William E.

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

493212, B31B 2324, B31B 2362

Patent

active

050410725

ABSTRACT:
In making the product, the manufacturer coats a longitudinal band of a web with a release coating. A longitudinal pressure-sensitive adhesive strip is applied in a longitudinal band on the web. Transverse glue lines are provided and the web is longitudinally folded, bringing two portions of the web into face-to-face contact. As a result, the transverse glue lines define individual envelope pockets and the release-coated surface on the first web portion becomes applied to the longitudinal adhesive strip on the second web portion. At the same time, the release-coated band of the first web portion is longitudinally severed from the remainder of the first web portion, thereby creating a separate peel-off strip removably covering the band of pressure-sensitive adhesive. The peel-off strip is manufactured while the envelope is being manufactured, and out of the same paper or paper-like material. The manufacturer can print, e.g. in multi-colors, on the portion of the web that becomes the peel-off strip, so that it can bear more attractive, more imaginative graphics, and registration of the peel-off strip on the web is a automatic task.

REFERENCES:
patent: 2483604 (1949-10-01), Abramson
patent: 3512457 (1970-05-01), Watanabe
patent: 4759643 (1988-07-01), Canno
patent: 4767654 (1988-08-01), Riggsbee
patent: 4785940 (1988-11-01), Wilson
patent: 4854610 (1989-08-01), Kwiatek

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