CONTAINER FOR CARBONATED BEVERAGE

摘要

PROBLEM TO BE SOLVED: To prevent dissolved carbon dioxide from vaporizing even when a cap is placed after drinking a certain amount of a cabonated beverage, and keep the natural taste of the carbonated beverage as is by a method wherein the internal capacity of the main body is reduced by providing a wrinkle formed part on the main body, and at the same time, a tying utensil to keep the internal capacity reduced state, is provided. SOLUTION: After pouring out a certain amount of a carbonated beverate by unsealing a discharging plug 30, the upper part of a container 10 is pressed while pulling a tying utensil 80, and a wrinkle formed part 51 is folded until the remaining carbonated beverage reaches the vicinity of a bottle neck part 40, and a space where the gas in the carbonated beverage container is filled, is reduced, and a discharging port 20 is closed with the discharging plug 30 under this state. Even when the pulling of the tying utensil 80 is stopped, an elastic piece 72 being provided in a through hole 71 of an annular protruding line 70, is engaged with an engaging groove 82 of the tying utensil 80, and the folded state of the wrinkles of the wrinkle formed part 51, is maintained. By this method, a state wherein there is almost no space for the gas in the container 10, is maintained, and the fresh bubbly taste which is natural for the carbonated beverage, can be retained for a long period of time.