Recyclable Film Food Packaging with Laser Date Coding

Abstract

A packaged food product includes a food product in packaging formed from a polyethylene film laminate body having a main polyethylene (PE) film layer and an ethylene vinyl alcohol (EVOH) layer. The packaging is laser date coded, with the laser date coding being established in the EVOH layer. Of the overall packaging, the ethylene vinyl alcohol layer is quite thin, generally having a thickness which is no greater than 5% of a thickness of the food packaging. The entire food packaging is readily recyclable, particularly by being at least essentially void of any polypropylene polymers and polyethylene terephthalate. The EVOH layer can be the outermost layer of the packaging, such as with the packaging being limited to just the PE and EVOH layers, or the packaging can include one or more other layers, such as cold seal, tie and/or ink layers.

Dependencies are inferred from the claim text.