| 摘要 |
In a package comprising an outer box made of cardboard material and an inner flexible bag made of plastic material for the packaging of dry food products such as cereals the plastic material is a coextruded multilayer film comprising at least a high moisture barrier layer, a moderate oxygen barrier layer, an odour or flavour barrier layer, a volatiles barrier layer reducing the migration of short chain hydrocarbons and performing a very good hot tack and peel sealability. The multilayer film comprises a layer of amorphous polyethylene terephthalate (PETG), a layer of a ionomer and at least one layer of high density polyethylene (HDPE) as an inner or sealing layer. |
