| 摘要 |
<p>PURPOSE: To obtain a relatively compact and sufficient strength and a sealing characteristic for packages of food products or the like by constituting the package with a pair of mutually facing upper and lower parts formed of a strong material respectively and foldably engaged with each other at the periphery of a hinge device and airtightly sealing a partition itself with a flexible film. CONSTITUTION: Products are charged in the package while it is opened at first. After the food products or the like have been put in recessed partitions, a flexible film is brought into contact with flanges 30, 34 to airtightly seal respective recess partitions 11, 13, 14. It is preferable that the flexible film is tensed and it does not get loose nor sags after sealing. Thereafter, the package is folded at the periphery of the hinge 16 and kept to be such a closed state by an appropriate means, a pressure-sensitive tab 17 for instance.</p> |
