Lap sealable film with a peel layer

Details Lap sealable film with a peel layer Lap sealable film with a peel layer

B - Operations, Transporting

32

B

B32B 27/32 (2006.01) B32B 7/06 (2006.01)

Patent

CA 2490889

A lap sealable film for forming bags on conventional vertical form/fill/seal equipment, in which the film comprises a peelable layer (26), a seal layer (22), and a barrier layer (24, 28). The seal layer (22) contains single site catalyzed polyethylene and is capable of sealing to the barrier layer (24). The barrier layer (24, 28) comprises a heat resistant and moisture barrier material, such as high density polyethylene or polypropylene.

La présente invention concerne un film à scellage chevauchant destiné à former des sacs sur une machine verticale formeuse/remplisseuse/scelleuse classique, contenant une couche de scellage et une couche imperméabilisante. Cette couche de scellage et cette couche imperméabilisante forment des surfaces opposées de ce film. La couche de scellage contient un polyéthylène catalysé sur un seul site et elle est capable de se sceller à la couche imperméabilisante. La couche imperméabilisante comprend un matériau imperméabilisant et résistant à la chaleur, tel que du polyéthylène ou du polypropylène haute densité.

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