| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems that even when a conventional PET bottle for a drink is purchased at a suitable temperature, the temperature of the remainder is raised in summer and fallen in winter during holding the remainder to degrade the quality in a short time and also condensation occurs on the surface of the PET bottle in summer to wet the inside of a bag or the like to store it and when the PET bottle has a heat insulation structure with an effect to keep cool/warm, while consumers are satisfied, it becomes difficult for a seller to cool or warm a drink. SOLUTION: The upper part in the vertical direction of the PET bottle with the heat insulation structure is made a non insulating structure and is used as a heat transfer surface to control to cool or warm the temperature of the drink in the container and the heat insulation part can serve as a cooling/warming function. When the drink is cooled, the PET bottle is placed in the normal way and only when it is warmed, the PET bottle is placed in the inversion so that the container having the same shape can be cooled and be kept cool or can be warmed and be kept warm. COPYRIGHT: (C)2006,JPO&NCIPI
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