Lid film for food packaging
AssigneeAmcor Flexibles Singen GmbH
InventorSusanne Mayer
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AssigneeAmcor Flexibles Singen GmbH
InventorSusanne Mayer
Estimating the term…
The present invention relates to a lid film for packaging of e.g. human or pet food. The lid film has a multi-layer structure and comprises a sealing layer, a barrier layer, a print primer layer, a print layer, an optional print protection layer, and a relief layer. The sealing layer, the barrier layer, the print primer layer, the print layer and the optional print protection layer are essentially flat. The relief layer is arranged at least on a part of the print layer and comprises at least n three dimensional structures per cm2 projecting at an essentially right angle from a surface of the adjacent print layer or the optional print protection layer and said three dimensional structures forming an non-continuous elevated surface, wherein the total of said elevated surface area formed by the three dimensional structures equals at least m % of a total surface area of the lid film and wherein the three dimensional structures have a minimal height of 5 μm.
A lid film for packaging having a multi-layer structure comprising a sealing layer, a barrier layer, a print primer layer, a print layer, an optional print protection layer, and a relief layer, wherein the sealing layer, the barrier layer, the print primer layer, the print layer and the optional print protection layer are essentially flat, wherein the relief layer is arranged at least on a part of the print layer or on the optional print protection layer and comprises at least n three dimensional structures per cm2, wherein n is at least 1, projecting at an essentially right angle from a surface of the adjacent print layer or the optional print protection layer and said three dimensional structures forming an non-continuous elevated surface, wherein the total of said elevated surface area formed by the three dimensional structures equals at least m % of a total surface area of the lid film, m being at least 10%, wherein the three dimensional structures have a minimal height of 5 μm, and wherein the lid film is sterilizable.
A lid film for packaging having a multi-layer structure comprising a sealing layer, a barrier layer, a print primer layer, a print layer, an optional print protection layer, and a relief layer, wherein the sealing layer, the barrier layer, the print primer layer, the print layer and the optional print protection layer are essentially flat, wherein the relief layer is arranged at least on a part of the print layer or on the optional print protection layer, is made of a solvent-free UV-flexoprint ink cured by UV radiation or an acrylic lacquer comprised of at least one acrylic resin and at least one photoinitiator hardened by radical polymerization initiated by UV radiation, and comprises at least n three dimensional structures per cm2, wherein n is at least 1, projecting at an essentially right angle from a surface of the adjacent print layer or the optional print protection layer and said three dimensional structures forming an non-continuous elevated surface, wherein the total of said elevated surface area formed by the three dimensional structures equals at least m % of a total surface area of the lid film, m being at least 10%, and wherein the three dimensional structures have a minimal height of 5 μm.
Dependencies are inferred from the claim text.