초록 ▼

A tamper-evident film includes a hydrocarbon polymer core layer (a) having an upper face and a lower face; an oriented tamper-evident layer 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 cavitatio

A tamper-evident film includes a hydrocarbon polymer core layer (a) having an upper face and a lower face; an oriented tamper-evident layer 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.

대표청구항 ▼

A tamper-evident film comprising: (a) an oriented polymer core layer having an upper face and a lower face; (b) an oriented tamper-evident layer applied to at least the lower face, but also optionally to the upper face of core layer (a), said layer (b) being fabricated from a mixture of a polyolefin

A tamper-evident film comprising: (a) an oriented polymer core layer having an upper face and a lower face; (b) an oriented tamper-evident layer applied to at least the lower face, but also optionally to the upper face of core layer (a), said layer (b) being fabricated from a mixture of a polyolefin and a filler which induces 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 (c) an oriented skin layer applied to the upper face of core layer (a) if layer (b) has not been applied thereon, said layer (c) being fabricated from a member of the group consisting of homopolymers, copolymers or blends thereof.