Pouch, lidded container, and tube

Abstract

A first packaging material includes at least one layer located in both a first region and a second region. A second packaging material includes at least one layer located in both the first region and the second region. The hole includes a proximate position where the distance between the hole and the outer edge of the pouch in a center-of-gravity direction is shortest, the center-of-gravity direction being a direction in which a center-of-gravity line passing through the center of the pouch and the center of the hole extends. A communication part is connected with the hole at a position that is spaced apart from the proximate position in a direction orthogonal to the center-of-gravity direction. The outline of the communication part that extends from the hole to the outer edge includes a first line and a second line. The first line is located closer to the proximate position than is the second line. In the center-of-gravity direction, the distance from a first connection point to the outer edge is greater than the distance from the proximate position to the outer edge, the first connection point being a point where the first line is connected with the hole.

1 . A pouch, the pouch having a containment part formed by joining a first packaging material and a second packaging material together, the first packaging material being located at a first face of the pouch, the second packaging material being located at a second face of the pouch, the pouch comprising:
 a first region overlapping the containment part in plan view;   a second region located between the containment part and an outer edge of the pouch in plan view, the second region including a seal that joins the first packaging material and the second packaging material together;   a hole located in the second region and penetrating the first packaging material and the second packaging material; and   a communication part extending from the hole to the outer edge of the pouch and penetrating the first packaging material and the second packaging material,   wherein the first packaging material includes at least one layer located in both the first region and the second region,   wherein the second packaging material includes at least one layer located in both the first region and the second region,   wherein the outer edge of the pouch includes a first edge where the communication part is located, a second edge that is opposite to the first edge in a first direction, and a third edge and a fourth edge that are located between the first edge and the second edge and are opposite to each other in a second direction orthogonal to the first direction,   wherein the hole includes a proximate position where a distance between the hole and the outer edge of the pouch in a center-of-gravity direction is shortest, the center-of-gravity direction being a direction in which a center-of-gravity line passing through a center of the pouch and a center of the hole extends,   wherein the communication part is connected with the hole at a position that is spaced apart from the proximate position in a direction orthogonal to the center-of-gravity direction,   wherein an outline of the communication part that extends from the hole to the outer edge includes a first line and a second line,   wherein the first line is located closer to the proximate position than is the second line, and   wherein in the center-of-gravity direction, a distance from a first connection point to the outer edge is greater than a distance from the proximate position to the outer edge, the first connection point being a point where the first line is connected with the hole.   
     
     
         2 . The pouch according to  claim 1 ,
 wherein the communication part is connected with the hole at a position that is spaced apart from the proximate position in a second direction orthogonal to the first direction, and   wherein in the first direction, the first connection point where the first line is connected with the hole is located closer to the second edge than is the proximate position.   
     
     
         3 . The pouch according to  claim 1 , wherein the first line and the second line are at least partially in contact with each other. 
     
     
         4 . The pouch according to  claim 3 , wherein the communication part includes a slit where the first line and the second line are in contact with each other, and a notch located closer to the outer edge than is the slit and where the first line and the second line are not in contact with each other. 
     
     
         5 . The pouch according to  claim 1 , wherein the first line and the second line are not in contact with each other. 
     
     
         6 . (canceled) 
     
     
         7 . The pouch according to  claim 1 , wherein the proximate position and the first connection point have a distance from each other of greater than or equal to 2 mm in the direction orthogonal to the center-of-gravity direction. 
     
     
         8 . The pouch according to  claim 1 , wherein a specimen cut out from a portion of the second region where the hole is located has a mean flexural rigidity of greater than or equal to 15 [g·cm 2 /cm] in a machine direction, the specimen including at least the first packaging material and the second packaging material. 
     
     
         9 . The pouch according to  claim 1 , wherein the second region includes:
 an outer-edge-side seal extending along the outer edge of the pouch;   a containment-part-side seal in contact with the containment part in plan view; and   a reinforcing part located between the outer-edge-side seal and the containment-part-side seal and surrounding the hole, the reinforcing part being thicker than the outer-edge-side seal and the containment-part-side seal.   
     
     
         10 . The pouch according to  claim 9 , wherein the reinforcing part includes a reinforcement located between the first packaging material and the second packaging material. 
     
     
         11 . A lidded container, the lidded container having a containment part sealed by joining a first packaging material and a second packaging material together, the first packaging material constituting a lid, the second packaging material constituting a container, the lidded container comprising:
 a first region overlapping the containment part in plan view;   a second region located between the containment part and an outer edge of each of the lid and the container in plan view, the second region including a seal that joins the first packaging material and the second packaging material together;   a hole located in the second region and penetrating the first packaging material and the second packaging material; and   a communication part extending from the hole to the outer edge of each of the lid and the container and penetrating the first packaging material and the second packaging material,   wherein the first packaging material includes at least one layer located in both the first region and the second region,   wherein the second packaging material includes at least one layer located in both the first region and the second region,   wherein the outer edge of each of the lid and the container includes a first edge where the communication part is located, a second edge that is opposite to the first edge in a first direction, and a third edge and a fourth edge that are located between the first edge and the second edge and are opposite to each other in a second direction orthogonal to the first direction,   wherein the hole includes a proximate position where a distance between the hole and the outer edge of the lidded container in a center-of-gravity direction is shortest, the center-of-gravity direction being a direction in which a center-of-gravity line passing through a center of the lidded container and a center of the hole extends,   wherein the communication part is connected with the hole at a position that is spaced apart from the proximate position in a direction orthogonal to the center-of-gravity direction,   wherein an outline of the communication part that extends from the hole to the outer edge includes a first line and a second line,   wherein the first line is located closer to the proximate position than is the second line, and   wherein in the center-of-gravity direction, a distance from a first connection point to the outer edge is greater than a distance from the proximate position to the outer edge, the first connection point being a point where the first line is connected with the hole.   
     
     
         12 . The lidded container according to  claim 11 , wherein a specimen cut out from a portion of the second region where the hole is located has a mean flexural rigidity of greater than or equal to 15 [g·cm 2 /cm] in a machine direction, the specimen including at least the first packaging material and the second packaging material. 
     
     
         13 . A tube, the tube having a containment part formed by joining a first packaging material and a second packaging material together, the first packaging material being located at a first face of the tube, the second packaging material being located at a second face of the tube, the tube comprising:
 a first region overlapping the containment part in plan view;   a second region located between the containment part and an outer edge of the tube in plan view, the second region including a seal that joins the first packaging material and the second packaging material together;   a hole located in the second region and penetrating the first packaging material and the second packaging material; and   a communication part extending from the hole to the outer edge of the tube and penetrating the first packaging material and the second packaging material,   wherein the first packaging material includes at least one layer located in both the first region and the second region,   wherein the second packaging material includes at least one layer located in both the first region and the second region,   wherein the outer edge of the tube includes a first edge where the communication part is located, a second edge that is opposite to the first edge in a first direction, and a third edge and a fourth edge that are located between the first edge and the second edge and are opposite to each other in a second direction orthogonal to the first direction,   wherein the hole includes a proximate position where a distance between the hole and the outer edge of the tube in a center-of-gravity direction is shortest, the center-of-gravity direction being a direction in which a center-of-gravity line passing through a center of the tube and a center of the hole extends,   wherein the communication part is connected with the hole at a position that is spaced apart from the proximate position in a direction orthogonal to the center-of-gravity direction, wherein an outline of the communication part that extends from the hole to the outer edge includes a first line and a second line,   wherein the first line is located closer to the proximate position than is the second line, and   wherein in the center-of-gravity direction, a distance from a first connection point to the outer edge is greater than a distance from the proximate position to the outer edge, the first connection point being a point where the first line is connected with the hole.   
     
     
         14 . The tube according to  claim 13 , wherein a specimen cut out from a portion of the second region where the hole is located has a mean flexural rigidity of greater than or equal to 15 [g·cm 2 /cm] in a machine direction, the specimen including at least the first packaging material and the second packaging material. 
     
     
         15 . The pouch according to  claim 1 ,
 wherein the second region is located between the first edge and the containment part,   wherein the first edge at which the communication part is located extends in the second direction,   wherein the first line includes a curved portion located at a position where the first line is connected with the first edge and having a curvature radius (R 1 ), and   wherein the second line includes a curved portion located at a position where the second line is connected with the first edge and having a curvature radius (R 2 ) greater than the curvature radius (R 1 ).   
     
     
         16 . The pouch according to  claim 1 ,
 wherein the second line includes a curved portion located at a position where the second line is connected with the first edge and a straight portion extending linearly from the hole toward the first edge, and wherein the curved portion of the second line does not overlap the hole when viewed in the first direction.   
     
     
         17 . The lidded container according to  claim 11 ,
 wherein the second region is located between the first edge and the containment part,   wherein the first edge at which the communication part is located extends in the second direction,   wherein the first line includes a curved portion located at a position where the first line is connected with the first edge and having a curvature radius (R 1 ), and   wherein the second line includes a curved portion located at a position where the second line is connected with the first edge and having a curvature radius (R 2 ) greater than the curvature radius (R 1 ).   
     
     
         18 . The lidded container according to  claim 11 ,
 wherein the second line includes a curved portion located at a position where the second line is connected with the first edge and a straight portion extending linearly from the hole toward the first edge, and   wherein the curved portion of the second line does not overlap the hole when viewed in the first direction.   
     
     
         19 . The tube according to  claim 13 ,
 wherein the second region is located between the first edge and the containment part,   wherein the first edge at which the communication part is located extends in the second direction,   wherein the first line includes a curved portion located at a position where the first line is connected with the first edge and having a curvature radius (R 1 ), and   wherein the second line includes a curved portion located at a position where the second line is connected with the first edge and having a curvature radius (R 2 ) greater than the curvature radius (R 1 ).   
     
     
         20 . The tube according to  claim 13 ,
 wherein the second line includes a curved portion located at a position where the second line is connected with the first edge and a straight portion extending linearly from the hole toward the first edge, and   wherein the curved portion of the second line does not overlap the hole when viewed in the first direction.