Importance

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Abstract

The packaging comprising an essentially dimensionally stable, elastically deformable external container, an easily deformable inner bag arranged therein, which receives the filling material, and a valve is characterized in that the valve comprises a base body which extends over the opening of the external container and comprises at least one through opening for the filling material and a valve holder which has fastened therein a valve body which comprises an elastically deformable partition wall tightly sealing the valve holder, and a valve pin pointing away from the external container, said partition wall together with the valve holder delimiting an air chamber under the valve pin, and comprising a cap which is fastened to the neck of the external container and covers the base body and the valve body and which delimits a receiving chamber for the filling material between the cap and the base body and comprises an outlet opening for the filling material which in the unpressurized state of the packaging is closed by the valve pin which under preload of the elastically deformable partition wall abuts on the area of the cap containing the outlet opening, the valve pin being retracted from the cap upon application of pressure to the external container by the pressurized filling material contained in the receiving chamber so that the filling material can exit, and that the cap comprises an air chamber which is separated from the receiving chamber for the filling material and sealed with respect to the receiving chamber and the external container and which is connected by means of at least one hole through the wall of the external container to the intermediate chamber between the external container and the inner bag and to the exterior atmosphere by means of at least one venting valve.

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First Claim