| 摘要 |
PROBLEM TO BE SOLVED: To obtain a negative pressure aseptic-filled canned food, high in asepsis and excellent in striking test aptitude, capable of ensuring the sealing property in a high cleanliness space before reaching a seamer body even if some deformation exists at the fitting part of a can lid and a can barrel. SOLUTION: Before a can barrel aseptic-filled with contents reaches a seamer body 5, the gas of a head space in the can barrel is replaced with a high pressure replacing fluid to mount the lid on the can barrel, and a lid mounted on the can barrel is crimped by a lid fitting, press contact, and temporal seaming turret 3 to perform temporal seaming. By crimping of the lid, a high temperature-replaced fluid is quickly cooled, the inside of the can is cooled to become a negative pressure, and the can lid and the can barrel are brought into close contact with each other. Then, the temporal seaming is performed, and even if some deformation exists at the fitting part of the can lid and the can barrel, the sealing condition is maintained, thereby carrying to the main seaming process in the seamer body is performed.
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