| 摘要 |
PROBLEM TO BE SOLVED: To provide a PET bottle mouth section sealing mechanism in which the fear for the generation of liquid leakage out of a bottle mouth section at the time of carrying or storing in the distribution process is eliminated by the cooling shrinkage of a bottle mouth section after contents are filled and sealed by a cap at a high temperature. SOLUTION: A PET bottle, in which contents are high temperature filled and a cap is fitted on neck section to seal the bottle, is provided with an outer fitting ring 131 set on the outer peripheral edge lower face on the lower face of an elastic top late 110 of a cap 100, and a disk-shaped setting packing 130 with an inner fitting ring 132 is engaged in parallel with the inner side of the outer fitting ring, and a tapered face 211 to be opened toward the lower inner side is formed on the inner peripheral edge of the upper end mouth section of a neck section 210 of the PET bottle 200. |
