| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve the problem that an opening formed in a paper layer of a paper pack body has the inside diameter approximately equal to the outside diameter of a straw, and when the beverage is sucked by passing the straw through an inner surface layer, the pressure in a paper pack is reduced, and as a result, when a mouth is released from the straw, outside air flows from the straw into the paper pack body to generate an unpleasant abnormal noise, and a problem that when the beverage is sucked at a stretch, the pack body is deformed. <P>SOLUTION: A paper pack for the beverage comprises the paper pack body 1 for storing the beverage, a first sealed opening 10 which is formed in a lid part of the paper pack body to insert a straw therein, and a second sealed opening 20 which is formed in the lid part of the paper pack body to allow the outside air to flow therein when the paper pack body is in a reduced pressure state. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
