Head for a container intended for repeated use.

摘要

A head for a container whose contents are intended to be discharged as separate aliquots, which comprises one or more narrow elongate passages (3) having a length of at least 3 mm and a maximum separation between the walls (1), when the passage is closed, of 1 mm and which provides a lasting barrier against microbial invasion of the contents. The barrier is mechanical in principle, but can be augmented by the incorporation of antimicrobial agents in the head.