| 摘要 |
PROBLEM TO BE SOLVED: To provide a synthetic resin-made container having delaminating function to which high-grade feeling is sufficiently provided by an outer layer forming an outer shell, in which there is no concern of bottom breaking for the purpose of eliminating the problem of a delaminating bottle by blow molding.SOLUTION: The synthetic resin-made container is formed in a bottomed cylindrical shape by a double wall cylindrical body in which an inner layer is peelably laminated to the outer layer forming an outer shell by a double injection molding method and a bottom member fitting the lower end of the double wall cylindrical body, the inner layer is formed in a thin wall thickness so as enable volume reducing deformation in a shriveled shape by a reduction of an inner pressure making upper and lower parts fixed in a peripheral shape as fixed ends with the inner layer fixed to the pouter layer in the peripheral shape at the upper end and the lower end of the double wall cylindrical body, further an air sucking hole for introducing an outer air to the space between the outer layer and the inner layer is bored in the outer layer part of the predetermined position of the double wall cylindrical body. |
