| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an easily openable container which can be manufactured at a low cost, and has both high sealability and easy openability, to provide a method for manufacturing the easily openable container, and to provide a manufacturing apparatus for the easily openable container. <P>SOLUTION: When this easily openable container 1 is manufactured, a flange section 25 of a container body 2 and a lid member 3 are heat-sealed. In this case, a surface layer 21 of a container body 2 and a sealing layer 31 of a lid member 3 are heat-sealed while the flange section 25 of the container body 2 and the lid member 3 are set in such a manner that an annular seal board 7, for which a curved surface section is formed on the inner peripheral edge, and also, a slope section is formed on the outer peripheral edge side, is pressed to the upper surface of the flange section 25. The surface layer 21 of the container main body 2 and the sealing layer 31 of the lid member 3 are heat-sealed while forming a bump-like resin revoir section 6 composed of a constituent resin of the surface layer 21 of the container body 2, a surface lower layer 22 being adjacent to the surface layer 21, and the sealing layer 31 of the lid member 3 in a vicinity 24 of the sealing section inner peripheral edge of the flange section 25. Thus, the easily openable container 1 having both high sealability and easy openability can be provided at a low cost. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
