Composition and method for making a flexible packaging film having highly loaded with at least one inorganic filler. A blown HDPE film comprising at least 50% by weight inorganic filler is oriented in the machine direction to increase yield and tensile strength, and reduce gauge variation to improve print qualities.

A method for producing a primary laminate including a tabstock by feeding a seal laminate comprising bottom food contact layers including a foil layer and a top polyester layer to a laminating station wherein either the foil layer of the underside of the polyester layer has been printed; simultaneously feeding a tabstock, which is narrower than the seal laminate, to the laminating station such that the bottom of the tabstock and the top polyester layer of the seal laminate come into contact to form a primary substrate, simultaneously feeding a plastic film stock; and continuously extruding a polymeric adhesive between the top face of the primary substrate and bottom surface of the plastic film stock.

An aluminum-plastic film and a substrate for an aluminum-plastic film are provided. The aluminum-plastic film includes a polyester layer, a composite resin layer, a polyamide layer, and an aluminum layer. The composite resin layer is disposed between the polyester layer and the polyamide layer. The aluminum layer is disposed on the polyamide layer. The polyester layer, the composite resin layer, and the polyamide layer are integrally formed by co-extrusion. The composite resin layer includes a terpolymer and a polyolefin resin. Based on a total weight of the composite resin layer being 100 wt %, an amount of the terpolymer is higher than 45 wt %. The terpolymer contains structural units of ethylene butyl acrylate.