B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
B65B 31/00 (2006.01)
Patent
CA 2574658
The present invention teaches a film having a pattern of protruding structures. When used in the vacuum packaging bag material context, the result is a vacuum packaging bag that a consumer can effectively evacuate and hermetically seal. The protruding structures tend to form channels that enable gas to evacuate from within a vacuum packaging bag. In certain embodiments, the protruding structures are formed only on an inner side of the vacuum packaging film, typically through a hot casting or heat-extrusion process. As a result, far less bag material is required than in the prior art patterned film formed through cold embossing processes. The present invention also contemplates a variety of applications for the films, including preformed bags and bag rolls, as well as a variety of apparatus for manufacturing the films and appliances for utilizing the bags and bag rolls.
L'invention concerne un film à structures protubérantes. En cas d'application au contexte de sac d'emballage sous vide, le résultat donne un produit à évacuation et fermeture hermétique efficaces. Les structures considérées tendent à former des canaux permettant l'évacuation de gaz depuis un tel sac. Selon certaines variantes, elles sont formées seulement sur un côté interne du film, généralement par coulée à chaud ou extrusion à chaud. On utilise ainsi beaucoup moins de matériau de sac qu'avec la technique classique de gaufrage à froid. L'invention concerne aussi diverses aplpications pour les films en question, y compris les sacs et rouleaux de sacs préformés, et divers appareils de fabrication de films et dispositifs d'utilisation des sacs et rouleaux de sacs.
Borden Ladner Gervais Llp
Sunbeam Products Inc.
LandOfFree
Vacuum packaging films patterned with protruding cavernous... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vacuum packaging films patterned with protruding cavernous..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum packaging films patterned with protruding cavernous... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1867815