Flexible bag material

摘要

A flexible bag material made of plastic material for the packaging of dry food products such as cereals wherein the plastic material is a multilayer film. The multilayer film comprises at least one high moisture barrier layer made of HDPE, a moderate oxygen barrier layer made of a blend of amorphous polyethylene terephthalate (PETG) and PE having a oxygen permeability of 400 cm3/m2/day or higher when measured at 23° C. and 0% relative humidity, and a peelable sealing layer. The flexible bag material is especially suitable for manufacturing an inner bag of a bag-in-box package having an outer rigid box made of cardboard, in particular recycled cardboard.

主权项

1. A flexible bag material made of plastic material for the packaging of dry food products, wherein the plastic material is a mono web multilayer film comprising at least a first moisture barrier layer made of HDPE, an oxygen barrier layer made of an extruded blend of an amorphous polyethylene terephthalate (PETG) and a polyethylene-based polymer (PE) having an oxygen permeability of 400 cm3/m2/day or higher when measured at 23° C. and 0% relative humidity, and a peelable sealing layer, wherein the first moisture barrier layer is on one side of the mono web multilayer film, the peelable sealing layer is on the opposite outer side of the mono web multilayer film and the oxygen barrier layer is between the first moisture barrier layer and the peelable sealing layer.