Releasably sealable bag comprising a composite sheet material

Details Releasably sealable bag comprising a composite sheet material Releasably sealable bag comprising a composite sheet material

B - Operations, Transporting

65

D

B65D 33/20 (2006.01) B65D 81/34 (2006.01) B65D 75/30 (2006.01)

Patent

CA 2406513

Disclosed is a bag comprised of at least two superimposed sheets of film material of one folded-over sheet which can have at least a portion of their superimposed edges being permanently sealed, wherein at least one of the sheets is a composite film material provided with a pressure sensitive adhesive protected from inadvertent adherence, the adhesive-bearing film sheet being releasably sealable to the other film sheet when pressed thereagainst to create a seal perimeter, wherein an interior of the bag is comprised within the seal perimeter. At least one of the first or second portion free edges may further be provided with an opening indication means that visually constrasts with the other first or second portion free edges. Also disclosed are methods for storage and cooking using the bags herein.

L'invention porte sur un sac constitué d'au moins deux feuilles superposées d'un matériau de type film doté d'une feuille repliée pouvant avoir au moins une partie de ses bords superposés scellée en permanence. Au moins une des feuilles est un film composite doté d'un adhésif sensible à la pression qui ne peut adhérer accidentellement. Cette feuille de film portant un adhésif peut se sceller de manière libérable à l'autre feuille de film lorsqu'une pression est exercée sur elle afin de former un périmètre d'étanchéité, l'intérieur du sac étant compris dans ce périmètre. Au moins un des bords libres des première et seconde parties peut être également pourvu d'un moyen d'indication d'ouverture qui contraste visuellement avec les autres bords libres de la première ou de la seconde partie. L'invention porte également sur des procédés de stockage et de cuisson de ces sacs.

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