Seamless container made in flow production process - has narrowed indented opening with flanged over opening edge and with sealing surface worked into wall of flanged opening

摘要

The seamless container is pressed in a flow production process with a narrowed opening made by indentation and it is given a flanged-over opening edge. A rotation symmetrical sealing surface is worked into the wall of the flanged-over opening edge which is approx. circular in cross section. The sealing surface is produced by smoothing rollers. This type of seamless container is mainly used for sprays or similar zerosol products. The lid of the container fits over the edge of the container opening to produce a liq. tight seal.