| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a packaging container, the bottle mouth part of which is prevented from falling down inward effectively when a cap is screwed on an amorphous bottle filled with a heated liquid and the cap of which can be easily opened and closed by preventing an increase in opening torque effectively. <P>SOLUTION: The packaging container comprises an amorphous polyester bottle 50 filled with the heated liquid and the cap 1 threadedly engaged on the bottle mouth part 51, wherein the cap has a plastic liner 17 with a disk shape, which is provided on the inner face of a top plate 3 and the liner has an annular outside protrusion 17a formed at the peripheral edge part and an inside protrusion 17b formed with a distance to the annular outside protrusion 17a and the inside protrusion is positioned on the flat inner face 3a of the top plate 3 and water content of the bottle is kept 5,000 ppm or less before filling the heated liquid and the upper end part of the bottle mouth part is engaged in and fixed to a dent part 17c formed between the annular outside protrusion and the inside protrusion. <P>COPYRIGHT: (C)2008,JPO&INPIT |
