| 摘要 |
PROBLEM TO BE SOLVED: To prevent or suppress the drop of the lubricant into the content from an inner area on an inner surface of a top wall. SOLUTION: In vessel lids (2 and 102), top walls (8 and 108) and skirt walls (10 and 110) suspended from peripheral edges of the top walls are provided, sealing means (42 and 136) are disposed on the peripheral edge on the inner surface of the top wall, and inner areas (40 and 134) present inside the sealing means together with sealing means on the inner surface of the top wall are formed of synthetic resin containing the lubricant. The inner area on the inner surface of the top wall is covered by lubricant drop preventive means (6 and 106). |
