White opaque opp film for tamper evident package

Details White opaque opp film for tamper evident package White opaque opp film for tamper evident package

B - Operations, Transporting

29

C

18/1041, 154/140

B29C 47/06 (2006.01) B29C 55/12 (2006.01) B29C 69/02 (2006.01) B32B 7/06 (2006.01) B32B 27/20 (2006.01) B32B 27/32 (2006.01) B32B 33/00 (2006.01) B65D 65/38 (2006.01) G09F 3/03 (2006.01)

Patent

CA 2018245

F5340L ABSTRACT TAMPER-EVIDENT FILM A tamper-evident film includes a hydrocarbon polymer core layer (a) having an upper face and a lower face; an oriented tamper-evident layer (b) applied to at least the lower face of core layer (a), layer (b) being fabricated from a mixture of a polyolefin and a filler of particles which induce cavitation upon orientation, layer (b) having an internal cohesiveness which is less than the internal cohesiveness and bonding strength of packaging adhesives and heat seals; and an oriented skin layer (c) applied to the upper face of core layer (a) if layer (b) has not been applied thereon, layer (c) being hydrocarbon polymer. A tamper-evident package seal and package are also provided.

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