| 摘要 |
A linerless metallic closure includes a metallic closure shell, as for example, the type used for crown caps or roll-on caps. A foamed material layer is applied to an inside surface of the metallic shell such that application of the linerless closure to a container hermetically seals it by a contact between a portion of the material layer on the shell and the container's rim. A method of fabricating linerless closures includes providing a metallic sheet; applying a foaming material layer to one of the surfaces of the metallic sheet, and forming the closure from the metallic sheet. The method also comprises applying and curing a coat of varnish, imprinting the metallic sheet with at least one of a brand name a producer logo, and a promotional message, and curing said ink before said applying the foaming material layer.
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