The present invention relates to a biodegradable multi-layer packaging element, such as a foil or wrap, for a food product, a food packaging unit comprising such multi-layer and a method for manufacturing such biodegradable multi-layer, with the multi-layer comprising: —an inner cover layer comprising an amount of a biodegradable aliphatic polyester; —a first intermediate layer of a biodegradable material for connecting and/or sealing adjacent layers; —a functional layer comprising a vinyl alcohol polymer; —a second intermediate layer of a biodegradable material for connecting and/or sealing adjacent layers; and —an outer cover layer comprising an amount of a biodegradable aliphatic polyester.

The packaging wrapper for gluten-free food products includes a multilayer sheet, including in turn one layer of polymeric material having at least one aperture and a layer of porous filter material coupled to the layer of polymeric material and positioned so as to cover the aperture.

The packaging wrapper for gluten-free food products includes a multilayer sheet, including in turn one layer of polymeric material having at least one aperture and a layer of porous filter material coupled to the layer of polymeric material and positioned so as to cover the aperture.

Described herein is a recyclable packaging having an exposed outermost surface, the recyclable packaging comprising: a wall comprising an inner surface opposite an outer surface, the wall having a multi-layer structure that includes a first layer comprising biaxially oriented polypropylene, a second layer comprising metallized cast polypropylene, a third layer comprising cast polypropylene; and a cavity at least partially surrounded by the wall.

A polyolefin-based film comprising at least one layer permitting printing as a result of laser irradiation; wherein not less than 100 ppm but not greater than 3000 ppm of pigment permitting printing as a result of laser irradiation is present in all layers of the film; haze thereof is not less than 1% but not greater than 30%; and unevenness in thickness thereof in either a machine direction or a transverse direction is not less than 0.1% but not greater than 25%. An object is to provide a film capable of being printed in distinct fashion by a laser, that excels with respect to unevenness in thickness, and that is of high transparency, and at the same time provide packaging which employs such film and on which printing has been directly carried out.

A polyolefin-based film comprising at least one layer permitting printing as a result of laser irradiation; wherein not less than 100 ppm but not greater than 3000 ppm of pigment permitting printing as a result of laser irradiation is present in all layers of the film; haze thereof is not less than 1% but not greater than 30%; and unevenness in thickness thereof in either a machine direction or a transverse direction is not less than 0.1% but not greater than 25%. An object is to provide a film capable of being printed in distinct fashion by a laser, that excels with respect to unevenness in thickness, and that is of high transparency, and at the same time provide packaging which employs such film and on which printing has been directly carried out.

Apparatuses, systems, and methods are presented for a wrapper for foodstuffs. An elastomeric layer is flexible and substantially planar. A metallic layer is malleable and substantially planar. An adhesive couples the metallic layer to at least a perimeter of the elastomeric layer so that the elastomeric layer, the metallic layer, and the adhesive comprise a food covering for a container and the metallic layer is configured to conform around an edge of the container.

Apparatuses, systems, and methods are presented for a wrapper for foodstuffs. An elastomeric layer is flexible and substantially planar. A metallic layer is malleable and substantially planar. An adhesive couples the metallic layer to at least a perimeter of the elastomeric layer so that the elastomeric layer, the metallic layer, and the adhesive comprise a food covering for a container and the metallic layer is configured to conform around an edge of the container.

The invention provides a sealant film that is less likely to adsorb components formed of various types of organic compounds, has excellent heat sealing characteristics at 140° C., while having low heat sealing strength at 100° C. and being less likely for heat sealing layers to adhere to each other even when the film is used as a packaging bag and the content thereof is warmed in boiling water. The sealant film has at least one heat sealing layer consisting of a polyester component, wherein a heat sealing strength of the heat sealing layer being heat sealed to another heat sealing layer at 100° C. and 0.2 MPa for 2 seconds is 0-5 N/15 mm and at 140° C. and 0.2 MPa for 2 seconds is 8-30 N/15 mm, and a film density including all layers is 1.20 or more and less than 1.39.

The invention provides a sealant film that is less likely to adsorb components formed of various types of organic compounds, has excellent heat sealing characteristics at 140° C., while having low heat sealing strength at 100° C. and being less likely for heat sealing layers to adhere to each other even when the film is used as a packaging bag and the content thereof is warmed in boiling water. The sealant film has at least one heat sealing layer consisting of a polyester component, wherein a heat sealing strength of the heat sealing layer being heat sealed to another heat sealing layer at 100° C. and 0.2 MPa for 2 seconds is 0-5 N/15 mm and at 140° C. and 0.2 MPa for 2 seconds is 8-30 N/15 mm, and a film density including all layers is 1.20 or more and less than 1.39.