| 摘要 |
PROBLEM TO BE SOLVED: To seal a sleeve without wrinkling of a film or remaining of air in a film. SOLUTION: A sleeve adhesion device has a primary sealer mechanism 12 and a secondary sealer mechanism 13 sequentially in the film-carrying direction. The primary sealer mechanism 12 has primary sealers 24A and 24B, respectively, in the front surface and the back surface of a sleeve sandwiched with a folded strip film f in such a way as to allow opening and closing. The sealers 24A and 24B seal the film f only in a central area of the front surface and the back surface of the sleeve in the primary heater portions 30A and 30B, respectively. The secondary sealers 44A and 44B arranged in the secondary sealer mechanism 13 are provided with secondary heater portions 45A and 45B for sealing a square-frame area of the sleeve and side-surface areas on both sides of the square-frame area, excluding central areas of the front surface and back surface of the sleeve. In the primary heater portion, only central areas of the sleeve and film are sealed, and then, the square-frame area and the side-surface areas are sealed in the second heater portion. From the film after sealed, water vapor and vapor of a sealer in the sleeve are blown away by an air blowing means 50. COPYRIGHT: (C)2011,JPO&INPIT |
