초록 ▼

A high-barrier liner for a composite container that is compatible with the use of RFID devices in the container includes a paper layer having an outer surface for attachment to an inner paperboard surface of a body wall of the container, and a metallized film attached to the inner surface of the pap

A high-barrier liner for a composite container that is compatible with the use of RFID devices in the container includes a paper layer having an outer surface for attachment to an inner paperboard surface of a body wall of the container, and a metallized film attached to the inner surface of the paper layer, the metallized film comprising a polymer film substrate having a vapor-deposited layer of metal applied to one surface of the substrate. The liner also includes a heat seal layer disposed on an opposite side of the metallized film from the paper layer and forming an innermost surface of the liner. The metallized film can include a metallization-promoting material coated onto the substrate prior to metallization to improve the uniformity and continuity of the metal layer. The metal layer of the metallized film can have a protective coating applied over it.

대표청구항 ▼

What is claimed is: 1. A composite container, comprising: a tubular body wall comprising paperboard material, the body wall defining an inner paperboard surface facing toward an interior of the container; a liner adhered to the inner paperboard surface of the body wall, the liner comprising: a pape

What is claimed is: 1. A composite container, comprising: a tubular body wall comprising paperboard material, the body wall defining an inner paperboard surface facing toward an interior of the container; a liner adhered to the inner paperboard surface of the body wall, the liner comprising: a paper layer having an outer surface facing the inner paperboard surface of the body wall and having an inner surface facing toward the interior of the container; a metallized film attached to the inner surface of the paper layer, the metallized film comprising a polymer film substrate having a vapor-deposited layer of metal applied to one surface of the substrate; and a sealant layer disposed on an opposite side of the metallized film from the paper layer and forming an innermost surface of the liner, the sealant layer comprising heat seal material; and an RFID device incorporated in the container. 2. The composite container of claim 1, wherein the polymer film substrate of the metallized film comprises a film core having opposite first and second surfaces and a coating of a metallization-promoting material applied to the first surface of the film core, the metal layer of the metallized film being applied to the metallization-promoting material. 3. The composite container of claim 2, wherein the metallization-promoting material comprises acrylate. 4. The composite container of claim 2, wherein the metallization-promoting material comprises polyvinyl alcohol. 5. The composite container of claim 2, wherein the metallization-promoting material comprises ethylene vinyl alcohol. 6. The composite container of claim 2, wherein the metallized film includes a protective coating over the metal layer. 7. The composite container of claim 1, wherein the metallized film includes a protective coating over the metal layer. 8. The composite container of claim 7, wherein the protective coating comprises a lacquer. 9. The composite container of claim 7, wherein the protective coating comprises a vacuum acrylate coating. 10. The composite container of claim 1, wherein the polymer film substrate of the metallized film comprises polyethylene terephthalate. 11. The composite container of claim 1, wherein the polymer film substrate of the metallized film comprises polyethylene. 12. The composite container of claim 1, wherein the polymer film substrate of the metallized film comprises polypropylene. 13. The composite container of claim 1, wherein the polymer film substrate of the metallized film comprises nylon. 14. The composite container of claim 1, wherein the metallized film comprises a first protective coating applied over the metal layer, a second metal layer applied over the first protective coating, and a second protective coating applied over the second metal layer. 15. The composite container of claim 1, wherein the liner further comprises a second metallized film disposed between the paper layer and the sealant layer. 16. The composite container of claim 1, wherein the liner further comprises an aluminum oxide-coated film disposed between the paper layer and the sealant layer. 17. The composite container of claim 1, wherein the liner further comprises an SiOx-coated film disposed between the paper layer and the sealant layer. 18. The composite container of claim 1, wherein the liner further comprises an oriented polymer film disposed between the paper layer and the sealant layer. 19. The composite container of claim 18, wherein the oriented polymer film comprises a polyester. 20. The composite container of claim 18, wherein the oriented polymer film comprises polypropylene. 21. The composite container of claim 1, wherein the one surface of the polymer film substrate of the metallized film is plasma-treated prior to metallization.