| 摘要 |
PROBLEM TO BE SOLVED: To provide a synthetic resin bottle which is provided with a decompression absorption mechanism and enables labels to be used regardless of materials of the labels.SOLUTION: A synthetic resin bottle 1 includes: a mouth part 2; a trunk part 3; a bottom part 4. The bottom part 4 includes a bottom plate 9. The bottom plate 9 is provided with a decompression absorption part. The decompression absorption part is formed by a mortar-shaped recessed part 10 in which a recessed groove 12 is formed. The recessed groove 12 is a spiral groove which continues from a peripheral edge part 10a of the mortar-shaped recessed part 10 to the inner side. |
