03.06.18
Stefan Sitzmann, Kirchehrenbach, Germany; and Michael Schuhmann, Grosshabersdorf, Germany.
Assigned to Infiana Germany, Forchheim, Germany.
Filed: 2/21/12
Issued: 1/23/18
A wrapper with a low noise opening giving an energy equivalent permanent sound level LAeq≤60 dB for a sheet-like, single-side-adhesive hygienic product, which wrapper is formed of packaging material in web form and comprises a plastic film comprising: a) at least one heat-sealable layer comprising a mixture of at least one homopolymer of ethylene or propylene or of at least one olefin-copolymer selected from the group consisting of copolymers of ethylene and propylene with a predominant portion of propylene units and of copolymers of ethylene and of at least one α-olefin having 6 to 10 carbon atoms, and from 5 to 20% by weight, based on the total weight of the layer a), of polybutylene, and optionally conventional auxiliaries and b) optionally a layer of polyethylene with a density of from 0.88 to 0.94 g/cm3, where the layer a) has a release coating in sections which face toward adhesive regions of the hygienic product and which thus is bonded releasably thereto, and otherwise has no release coating in wrapper regions bonded as edge closures in the form of strips or lines.
Assigned to Infiana Germany, Forchheim, Germany.
Filed: 2/21/12
Issued: 1/23/18
A wrapper with a low noise opening giving an energy equivalent permanent sound level LAeq≤60 dB for a sheet-like, single-side-adhesive hygienic product, which wrapper is formed of packaging material in web form and comprises a plastic film comprising: a) at least one heat-sealable layer comprising a mixture of at least one homopolymer of ethylene or propylene or of at least one olefin-copolymer selected from the group consisting of copolymers of ethylene and propylene with a predominant portion of propylene units and of copolymers of ethylene and of at least one α-olefin having 6 to 10 carbon atoms, and from 5 to 20% by weight, based on the total weight of the layer a), of polybutylene, and optionally conventional auxiliaries and b) optionally a layer of polyethylene with a density of from 0.88 to 0.94 g/cm3, where the layer a) has a release coating in sections which face toward adhesive regions of the hygienic product and which thus is bonded releasably thereto, and otherwise has no release coating in wrapper regions bonded as edge closures in the form of strips or lines.
