Corrugated paperboard package systems with gas-permeable...

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 85/34 (2006.01) A23B 7/148 (2006.01) B32B 29/08 (2006.01) B65D 65/40 (2006.01)

Patent

CA 2107456

This invention relates to novel package systems for refrigerated modified atmosphere packaging of fresh fruit, vegetables and cut flowers. More particularly, this invention relates to the design, construction, closure, sealing and use of gas-permeable corrugated paperboard package systems for prolonging the storage life of fresh fruits, vegetables and cut flowers under modified atmosphere in the headspaces of the closed package system. A corrugated gas permeable paperboard comprising: (a) a first layer of Kraft paper; (b) a layer of polymer having a gas permeability which permits gas to be transmitted through the polymeric film at prescribed levels; (c) a second layer of Kraft paper, said first and second layers of Kraft paper sandwiching the polymer between them; (d) a corrugated fluting; and (e) a third layer of Kraft paper affixed to the corrugated fluting.

La présente invention porte sur de nouveaux systèmes d'emballage pour le conditionnement réfrigéré sous atmosphère modifiée des fruits et légumes frais et des fleurs coupées. Plus particulièrement, la présente invention concerne la conception, la construction, la fermeture, le scellage et l'utilisation de systèmes de carton rigide ondulé perméable aux gaz pour prolonger la durée de conservation des fruits et légumes frais et des fleurs coupées sous atmosphère modifiée dans les espaces libres du système d'emballage fermé. Un carton rigide ondulé perméable aux gaz comprenant : (a) une première couche de papier kraft; (b) une couche de polymère d'une perméabilité aux gaz autorisant le passage des gaz à travers le film polymérique à des concentrations déterminées; (c) une deuxième couche de papier kraft, lesdites première et deuxième couches de papier kraft étant situées de part et d'autre du polymère pour former une structure de type sandwiche; (d) un papier cannelure pour carton ondulé; et (e) une troisième couche de papier kraft fixée au papier cannelure pour carton ondulé.

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