Method of shrinking a film to apply lidstock and package

Details Method of shrinking a film to apply lidstock and package Method of shrinking a film to apply lidstock and package

B - Operations, Transporting

65

B

B65B 25/06 (2006.01) B65B 7/16 (2006.01) B65D 51/18 (2006.01) B65D 77/20 (2006.01)

Patent

CA 2221344

A package and a method for making a package which allows for the central processing of fresh red meat is disclosed which includes a tray (12), a first film (24) enclosing the product (20) within the tray and a second film (30), which is removed at retail, enclosing the first film. The first film and the second film are sealed to the inner periphery (27) and the outer periphery (31), respectively, of the single flange (22) of a conventional foamed or nonfoamed tray. The first film is a heat shrinkable film which is sealed to the inner periphery of the flange forming a first seal (26), trimmed outboard of the first seal, thereby forming an excess portion (28) of the first film outboard of the first seal, and then subjected to a sufficiently high temperature to shrink the excess portion and thereby expose a sealing area (29) on the outer periphery of the flange. The second film is then sealed to the sealing area on the outer periphery of the flange, forming a second seal (32) such that the second film encloses the first film.

L'invention concerne un emballage ainsi qu'un procédé de production d'un emballage permettant le traitement centralisé de la viande rouge fraîche, lequel comprend une barquette (12), un premier film (24) renfermant le produit (20) à l'intérieur de la barquette ainsi qu'un second film (30), lequel est retiré sur le point de vente, renfermant le premier film. Le premier film et le second film sont scellés à la périphérie intérieure (27) et la périphérie extérieure (31), respectivement, du bord unique (22) d'une barquette alvéolaire ou non alvéolaire classique. Le premier film est un film thermorétrécissable scellé sur la périphérie intérieure du bord formant un premier scellement (26), coupé à l'extérieur du premier scellement, formant ainsi une partie excédentaire (28) du premier film à l'extérieur du premier scellement, et ensuite soumis à une température suffisamment élevée pour rétrécir la partie excédentaire et ainsi exposer une surface de scellement (29) sur la périphérie extérieure du bord. Le second film est ensuite scellé dans la zone de scellement sur la périphérie extérieure du bord, formant un second scellement (32) de sorte que le second film renferme le premier film.

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