MOUTH PLUG STRUCTURE FOR DISTRIBUTION CONTAINER

摘要

PROBLEM TO BE SOLVED: To provide a distribution container with excellent convenience at the time of use by which the propagation of bacteria is prevented not only inside a bottle but also inside a nozzle though no preservative is added. SOLUTION: The mouth plug 3 of a laminated peeling bottle is provided with a distribution valve 8 and a filter 7. The distribution valve 8 is elastically deformed so as to displace a valve head 82 to a downstream side in the state of closing an orifice 82a when a pressure smaller than a prescribed distribution pressure acts on the inner surface of the valve head 82 and is restoratively deformed so as to suck fluid remaining in an ejection path 10 back to the upstream side of the filter 7 by displacing the valve head 82 to the upstream side in the state of closing the orifice 82a when the pressure is removed. Then, the mouth plug 3 is provided with a supporting part 31d for preventing the opening of the orifice 82a of the valve head 82 when a negative pressure is generated inside the bottle.