US 12,246,904 B2
Pouch
Saho Morita, Tokyo (JP); and Takahiro Shimono, Tokyo (JP)
Assigned to TOPPAN INC., Tokyo (JP)
Appl. No. 17/916,881
Filed by TOPPAN INC., Tokyo (JP)
PCT Filed Apr. 8, 2021, PCT No. PCT/JP2021/014934
§ 371(c)(1), (2) Date Oct. 4, 2022,
PCT Pub. No. WO2021/206150, PCT Pub. Date Oct. 14, 2021.
Claims priority of application No. 2020-070005 (JP), filed on Apr. 8, 2020; and application No. 2020-071559 (JP), filed on Apr. 13, 2020.
Prior Publication US 2023/0166900 A1, Jun. 1, 2023
Int. Cl. B65D 81/34 (2006.01); B65D 33/01 (2006.01); B65D 75/00 (2006.01)
CPC B65D 81/3461 (2013.01) [B65D 33/01 (2013.01); B65D 75/008 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A pouch having an accommodation space that accommodates contents between a bottom portion and a top portion on a side opposite to the bottom portion, comprising:
a pair of sheets that are aligned one over another; and
a pair of side seal portions provided on both sides of the pair of sheets to be sealed so that the pair of sheets form the accommodation space,
wherein at least one side seal portion of the pair of side seal portions includes
a first seal portion located closer to the top portion,
a second seal portion located closer to the bottom portion than the first seal portion and separated from the first seal portion, and
a steam discharge seal portion configured to connect the first seal portion and the second seal portion, to protrude to a side of the accommodation space, and to release steam,
a steam discharge region to allow passage of the steam, the steam discharge region formed by a first region between the first seal portion and the second seal portion and a second region surrounded by the first region and the steam discharge seal portion, so that the steam discharge seal portion is located closer to the top portion, and
a penetration portion that passes through at least one sheet of the pair of sheets in a thickness direction is formed in the steam discharge region of the at least one sheet,
wherein
the steam discharge seal portion has a tip end portion with a tip end point at a position closest to a center side of the accommodation space, and
the penetration portion is locatable on a penetration-portion virtual line obtained by virtually connecting a center of the accommodation space and the tip end point, so that a portion of the penetration portion closest to the center side of the accommodation space is located on the penetration-portion virtual line.