Integrally blow-moulded bag-in-container having interface...

Details Integrally blow-moulded bag-in-container having interface... Integrally blow-moulded bag-in-container having interface...

B - Operations, Transporting

29

B

B29B 11/14 (2006.01) B29C 35/08 (2006.01) B29C 49/06 (2006.01) B29C 49/22 (2006.01) B65D 25/14 (2006.01) B65D 77/06 (2006.01)

Patent

CA 2686500

The invention is an integrally blow-moulded bag-in-container (2) and preform (1) for making it The bag-in-container (2) has an inner layer (21) forming the bag and an outer layer (22) forming the container, and a mouth (5) fluidly connecting the volume defined by the bag to the atmosphere. The container further has at least one interface vent (3) fluidly connecting the interface (14) between inner and outer layers to the atmosphere, wherein the at least one vent (3) runs parallel to the interface between inner and outer layers (21) (22) and opens to the atmosphere at a location (4) adjacent to, and oriented coaxially with the bag-in-container's mouth (5). Processes for manufacturing a preform and a bag-in-container as defined above are defined too.

La présente invention concerne une caisse-outre (2) moulée par soufflage d'un seul tenant et une préforme (1) pour fabriquer celle-ci. La caisse-outre (2) présente une couche interne (21) formant la poche et une couche externe (22) formant la caisse, et une ouverture (5) reliant de manière fluidique le volume défini par la poche à l'atmosphère. La caisse présente en outre au moins un orifice d'interface (3) reliant de manière fluidique l'interface (14) entre les couches interne et externe à l'atmosphère, le ou les orifices (3) s'étendant de manière parallèle à l'interface entre les couches interne et externe (21) (22) et s'ouvrant sur l'atmosphère à un emplacement (4) adjacent à l'ouverture (5) de la caisse-outre, et orienté de manière coaxiale avec celle-ci. La présente invention concerne également des procédés permettant de fabriquer une préforme et une caisse-outre telle que définie ci-dessus.

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