| 摘要 |
PROBLEM TO BE SOLVED: To provide a container plug structure, in more details, a plug structure suitable for a container for filling liquid retort food such as cone soup and sauce, and a plug structure suitable for a medical container such as a drip, with respect to a member to be used for a plug part, and a plug facilitating welding between a film to be a container and a plug, and excellent in user-friendliness, with respect to a container making a bag by using a plug and welding with a film.SOLUTION: A contact surface between a film and a plug welding part becomes flat to make an applied pressure constant by thinning a thickness of the plug welding part to be welded with the film and crushing the plug welding part by application of pressure during welding, and consequently, stable welding properties can be obtained. |
