Packaging material and sealing cap
AssigneeNippon Film Industrial Co., Ltd.
InventorsToru Hanaya, Masaei Ibi
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Abstract
This invention provides a packaging material comprising a metallic foil and at least one heat-shrinkable film of synthetic resin disposed on at least one surface of the metallic foil, the film being superposed on the metallic foil and comprising superposed portions bonded to the metallic foil and superposed portions to be heat-shrunk and not bonded to the metallic foil, and the portions to be heat-shrunk of the film being shrunk by application of heat and also provides a sealing cap made of the packaging material suitable for sealing the capped mouths of bottles for wine, champagne or the like.
Claims28
A packaging material comprising:
- a metallic foil;
- and
- at least one heat-shrinkable film of synthetic resin disposed on at least one surface of the metallic foil;
- wherein the film superposed on the metalic foil comprises superposed portions bonded to the metallic foil with an adhesive, and which undergoes substantially no shrinkage on the application of heat by virtue of the shape retention of the metallic foil, and superposed portions not bonded to the metallic foil and to be heat-shrunk and the portion of the film to be heat-shrunk being shrunk by application of heat.
Dependencies are inferred from the claim text.