US 12,280,559 B2
Method for manufacturing packaging for pouch container, and device for manufacturing packaging for pouch container
Takao Kano, Osaka (JP)
Assigned to FUJI SEAL INTERNATIONAL, INC., Osaka (JP); and KAO CORPORATION, Tokyo (JP)
Appl. No. 17/919,920
Filed by FUJI SEAL INTERNATIONAL, INC., Osaka (JP); and KAO CORPORATION, Tokyo (JP)
PCT Filed Apr. 21, 2021, PCT No. PCT/JP2021/016186
§ 371(c)(1), (2) Date Oct. 19, 2022,
PCT Pub. No. WO2021/215476, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 2020-076555 (JP), filed on Apr. 23, 2020.
Prior Publication US 2023/0173782 A1, Jun. 8, 2023
Int. Cl. B31B 70/14 (2017.01); B31B 70/26 (2017.01); B31B 70/64 (2017.01); B31B 155/00 (2017.01)
CPC B31B 70/14 (2017.08) [B31B 70/261 (2017.08); B31B 70/64 (2017.08); B31B 2155/00 (2017.08)] 12 Claims
OG exemplary drawing
 
1. A method for manufacturing a pouch-type packaging material from a first body sheet material and a second body sheet material disposed face-to-face in a first direction, and a top-side sheet material disposed on a top side of the first body sheet material and the second body sheet material in a second direction perpendicular to the first direction, the method comprising:
a sheet joining process of joining a first main region of the first body sheet material and a second main region of the second body sheet material to provide a pair of side seals spaced apart from each other in a third direction perpendicular to the first direction and the second direction, and joining a first sub-region of the first body sheet material, a second sub-region of the second body sheet material, and the top-side sheet material to provide a top-side seal, the first sub-region being located on the top side of the first main region in the second direction, the second sub-region being located on the top side of the second main region in the second direction;
a first folding process of making a valley fold along a first boundary line between the first main region and the first sub-region so that the first main region and the first sub-region overlap, while the second main region and the second sub-region do not overlap;
a first cutting process of cutting the top-side sheet material, the second sub-region, the first main region, and the second main region along a first cutting line that extends from a portion where the top-side sheet material and the second sub-region overlap to a portion closer toward a bottom side in the second direction beyond the first boundary line;
a second folding process of making a valley fold along a second boundary line between the second main region and the second sub-region so that the second main region and the second sub-region overlap, while the first main region and the first sub-region do not overlap; and
a second cutting process of cutting the top-side sheet material, the first sub-region, the first main region, and the second main region along a second cutting line to form a top-side sheet from the top-side sheet material, the second cutting line extending from a portion where the top-side sheet material and the first sub-region overlap to a portion closer toward the bottom side in the second direction beyond the second boundary line to intersect a first outline that is formed in the first cutting process.