Method for producing a container having at least one vent opening

摘要

The receptacle consists of a stiff outer receptacle and an easily deformable inner bag resting thereon and is produced in a coextrusion-type blow molding process. The outer receptacle contains at least one pressure compensating opening through which air enters between the outer receptacle and the inner bag whenever the contents of the receptacle is discharged. The pressure compensating opening is formed by an oscillating tool which cuts a slit-shaped recess out of the wall of the outer receptacle without the inner bag being impaired by the oscillating tool.