| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bottle in which a hollow part of a bottom wall part is not likely to bulge and deform downward when the bottle is subjected to heat sterilization or when the bottle is filled with high-temperature contents. <P>SOLUTION: The bottle 1 is formed of synthetic resin material and is formed in a bottomed cylinder shape. An outer circumferential edge part of the bottom wall part 16 of a bottom part 14 becomes a grounding part 17 extending in a bottle circumferential direction. A part positioned inside from the grounding part 17 in a bottle diameter direction is the hollow part 18 hollowing upward. A side wall part 19, out of a wall part defining the hollow part 18, extending upward and connecting to the grounding part 17 from the inside in the bottle diameter direction is subjected to thermal crystallization treatment and is whitened. <P>COPYRIGHT: (C)2012,JPO&INPIT |
