| 摘要 |
PROBLEM TO BE SOLVED: To provide a tetrahedral package which prevents fillers in a tetra pack from being scattered when forming an unsealed part of a pour-out port by tearing a flat rib (sealed part), enables the easy control of the pouring out amount of the fillers, and can be served on a dining table as it is. SOLUTION: In the tetrahedral package body 1, both open end parts of a body part 2 of a cylindrical body are heat-sealed in directions orthogonal to each other, flat ribs 3, 3A are formed at both ends, and the fillers A are tightly sealed. The sealed width of either of the flat ribs 3, 3A is widely formed, a non sealed part 5 communicating with an inner cavity 4 of the tetrahedral part 1' is formed as a pouring out path of the fillers A at a predetermined position of the flat rib 3, and notches 6, 6 for unsealing tearing across the non sealed part 5 are formed at a width side edge part of the flat rib 3. COPYRIGHT: (C)2007,JPO&INPIT
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