| 摘要 |
PROBLEM TO BE SOLVED: To provide a pouring outlet stopper for a liquid container without anxiety about water leakage resulting from welded lines of a contact ring of a dispenser cap and excellent in a γ-ray irradiation-resistant property in the germless packaging. SOLUTION: In a pouring outlet stopper for a liquid container constituted of a spout, a dispenser cap in which the pouring outlet of a shutter plate is opened or closed by a diaphragm valve, and a dust cap, the sectional shape of a contact ring 151 provided at the inside of the shutter plate 150 of the dispenser cap 100 closely contacting the diaphragm on sealing the container, is formed to have a V-shape with 70 degrees or more angle and the dispenser cap is made of a random-copolymerized polypropylene with a γ-ray irradiation- resistant property. |
