Multi-layer packaging foil and method for manufacturing the foil

Details Multi-layer packaging foil and method for manufacturing the foil Multi-layer packaging foil and method for manufacturing the foil

1997-05-09

1999-09-07

Hughes, S. Thomas

Metal working

Foil or other thin sheet-metal making or treating

Method

294695, 156233, 156277, 156324, B21D 3300, B32B 3100

Patent

active

059467819

ABSTRACT:
A multi-layer packaging foil having a hologram membrane therein, includes a bottom structure made of plastic material and a top structure made of aluminum foil with a hologram membrane sandwiched therebetween. The hologram membrane is composed of a layer of resin and a thin layer of aluminum with a serration defining a hologram formed thereon so that when the packaging foil is viewed from the bottom structure side, a 3-D image is generated by the serration. Also provided herein is a method for manufacturing the multi-layer packaging foil, including the steps of applying a resin layer on a plastic bottom structure with a thin layer of aluminum covered thereon, forming a serration defining a hologram on the aluminum and resin layers by means of a serration forming roller and adhesively attaching a top structure which comprises an aluminum foil over the serration.

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