Envelopes – wrappers – and paperboard boxes – Paperboard box – A sidewall includes a folded lateral extension of an...
Patent
1995-08-30
1997-08-26
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
A sidewall includes a folded lateral extension of an...
206455, 206806, 2291032, 229245, B65D 506, B65D 542
Patent
active
056603223
ABSTRACT:
A carton for a package of photographic film, such as instant film. The carton is formed of a unitary paperboard blank coated on both sides by a thermoplastic barrier film. The thermoplastic functions as an adhesive when acted upon by heat and pressure, thus sealing portions of the blank together. Each of four corners of the carton includes a gusset folded in such a manner as not to present a raw paperboard edge to the interior. The construction yields an air tight, liquid tight package with an oxygen barrier, and obviates the requirement of many similar packages that the photographic film be separately wrapped in a protective foil or film prior to being placed in a carton. Three embodiments of the carton are disclosed.
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Doyle Michael J.
Elkins Gary E.
International Paper
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