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US 2002/0153639 A1Published application
Method for marking a laminated film material
OwnerKimberly Suchar Hawkes, Timothy Joy Patterson +1inventors
InventorsKimberly Suchar Hawkes, Timothy Joy Patterson, Jeffrey Scott Bailey
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Abstract
The invention relates to a method for marking a laminated film material comprising at least a metal film and a plastic film material affixed to it by means of an adhesive. To ensure that the marking of the film withstands any subsequent process steps, such as sterilization of the packaging, and is visually appealing, it is envisaged that the plastic film material be removed and/or visibly changed in structure by laser.
Claims24
A method for marking a laminated film comprising the steps of:
- ablating a laminate film;
- wherein the laminate film has at least one plastic layer, adhered to a metal layer with an adhesive layer, the plastic layer and metal layer each having first surfaces which are in contact with the adhesive layer;
- and
- wherein said laser ablates to depth between the first surface of the plastic layer and the first surface of the metal layer, so that the metal layer is not exposed to the atmosphere.
1 more element
Dependencies are inferred from the claim text.