LIQUID DISPENSING HEAD, IN PARTICULAR FOR A BOTTLE FOR PACKAGING A LIQUID TO BE DISPENSED DROP BY DROP

摘要

The present invention relates to a fluid discharge head comprising a filtering device (26) configured to be installed in a container containing fluid and forming an interface between the inside and the outside of the container. The filtering device is a tubular filter 30 extending in the longitudinal direction so that it can be inserted into a container, in particular its wall is composed of a thin film capable of selectively permeating the fluid discharged from the container and for this purpose a tubular filter formed of a hydrophilic material It includes. The thin film forming the wall of the filter tube is formed of a hydrophobic material capable of selectively permeating air so that the discharged fluid can be replaced with air. The hydrophobic thin film also filters bacteria in the air.