Spout pouch

Abstract

Provided is a spout pouch that suppresses breakage of a pouch main body starting from the vicinity of a flange outer peripheral edge. In a spout pouch, a spout attachment film includes a flange facing region where a flange of a spout faces the spout attachment film. A pouch main body includes a shape control sealing portion formed by fusing a portion of the spout attachment film positioned inward of a connection seal in a transverse direction and a side film. The shape control sealing portion includes a portion positioned in a region between the flange facing region and the connection seal in the transverse direction.

1 . A spout pouch comprising:
 a pouch main body; and   a spout attached to the pouch main body, wherein   the pouch main body includes:   a spout attachment film to which the spout is attached; and   a side film connected to the spout attachment film by a connection seal formed on both sides of the spout attachment film in a transverse direction,   the spout attachment film includes a flange facing region where a flange of the spout faces the spout attachment film,   the pouch main body includes a shape control sealing portion formed by fusing a portion of the spout attachment film positioned inward of the connection seal in the transverse direction and the side film, and   the shape control sealing portion includes a portion positioned in a region between the flange facing region and the connection seal in the transverse direction.   
     
     
         2 . The spout pouch according to  claim 1 , wherein
 the spout is attached at a position, among a first side and a second side in a longitudinal direction, closer to the second side than to a center of the spout attachment film in the longitudinal direction,   the flange facing region includes:   a first facing region that is a portion closer to the first side than a center of the flange facing region in the longitudinal direction; and   a second facing region that is a portion closer to the second side than the center of the flange facing region in the longitudinal direction, and   the pouch main body includes, as the shape control sealing portion, a first shape control sealing portion including a portion positioned in a region between the first facing region and the connection seal in the transverse direction.   
     
     
         3 . The spout pouch according to  claim 2 , wherein the first shape control sealing portion further includes a portion positioned in a region between the second facing region and the connection seal in the transverse direction. 
     
     
         4 . The spout pouch according to  claim 2 , wherein
 the pouch main body further includes, as the shape control sealing portion, a second shape control sealing portion formed by fusing a portion of the spout attachment film positioned inward of the connection seal in the transverse direction and the side film at a position closer to the second side than the first shape control sealing portion in the longitudinal direction, and   the second shape control sealing portion includes a portion positioned in a region between the second facing region and the connection seal in the transverse direction.   
     
     
         5 . The spout pouch according to  claim 4 , wherein
 each of the first shape control sealing portion and the second shape control sealing portion includes an innermost top portion positioned on an innermost side in the transverse direction, and   a transverse direction dimension from the connection seal to the innermost top portion of the first shape control sealing portion is set to be equal to or greater than a transverse direction dimension from the connection seal to the innermost top portion of the second shape control sealing portion.   
     
     
         6 . The spout pouch according to  claim 2 , wherein an end portion on the second side of the first shape control sealing portion in the longitudinal direction is set at a position lateral of the flange facing region in the transverse direction. 
     
     
         7 . The spout pouch according to  claim 1 , wherein
 the spout is attached at a position, among a first side and a second side in a longitudinal direction, closer to the second side than to a center of the spout attachment film in the longitudinal direction,   the flange facing region includes:   a first facing region that is a portion closer to the first side than a center of the flange facing region in the longitudinal direction; and   a second facing region that is a portion closer to the second side than the center of the flange facing region in the longitudinal direction, and   the pouch main body includes, as the shape control sealing portion, a second shape control sealing portion including a portion positioned in a region between the second facing region and the connection seal in the transverse direction.   
     
     
         8 . The spout pouch according to  claim 1 , wherein the shape control sealing portion is formed on both sides with the flange facing region interposed therebetween. 
     
     
         9 . The spout pouch according to  claim 1 , wherein the shape control sealing portion is formed continuously with the connection seal. 
     
     
         10 . A spout pouch comprising:
 a front side film;   a rear side film;   a side gusset film disposed between the front side film and the rear side film at a pouch side portion, and thermally fused to the front side film and the rear side film by a side seal; and   a spout attached to the side gusset film, wherein   the side gusset film includes:   a front side sealing region thermally fused to the front side film at the side seal;   a rear side sealing region thermally fused to the rear side film at the side seal; and   a non-sealing region that is a region inward of the front side sealing region and the rear side sealing region,   the non-sealing region includes:   a front side outer edge that is a boundary with the front side sealing region; and   a rear side outer edge that is a boundary with the rear side sealing region,   the front side outer edge and the rear side outer edge each include:   a base edge portion, the base edge portion of the front side outer edge and the base edge portion of the rear side outer edge being disposed spaced apart from each other in a front-rear direction; and   an upper side inclined edge portion extending from an upper end of the base edge portion to an upper end coupling portion coupling an upper end of the front side outer edge and an upper end of the rear side outer edge, and   at least a portion of a flange of the spout is disposed facing a region between the upper side inclined edge portion of the front side outer edge and the upper side inclined edge portion of the rear side outer edge.   
     
     
         11 . The spout pouch according to  claim 10 , wherein the upper side inclined edge portion is constituted by at least two inclined portions having different inclination angles with respect to an up-down direction. 
     
     
         12 . The spout pouch according to  claim 11 , wherein
 the upper side inclined edge portion includes:   a gently inclined portion connecting a portion positioned above and inward in the front-rear direction relative to the upper end of the base edge portion; and   a steeply inclined portion connecting an upper end of the gently inclined portion and the upper end coupling portion,   a first virtual line passing through the upper end and a lower end of the gently inclined portion extends at an incline in the up-down direction inwardly in the front-rear direction toward an upper side,   a second virtual line passing through an upper end and a lower end of the steeply inclined portion extends at an incline in the up-down direction inwardly in the front-rear direction toward the upper side,   an inclination angle of the first virtual line with respect to the up-down direction is set to be smaller than an inclination angle of the second virtual line with respect to the up-down direction, and   at least a portion of the flange is disposed facing a region between the gently inclined portion of the front side outer edge and the gently inclined portion of the rear side outer edge.   
     
     
         13 . The spout pouch according to  claim 12 , wherein
 the side gusset film includes a flange facing region where the flange faces the side gusset film,   at least one of the front side sealing region and the rear side sealing region includes a control sealing portion positioned inward of the first virtual line in the front-rear direction, and   the control sealing portion includes a portion positioned in a region between a lower half of the flange facing region and the front side sealing region or the rear side sealing region in the front-rear direction.   
     
     
         14 . The spout pouch according to  claim 13 , wherein the control sealing portion includes an area positioned below the flange facing region. 
     
     
         15 . The spout pouch according to  claim 10 , wherein liquid contents are accommodated in a liquid contents accommodating portion of the spout pouch in an amount, in an unopened state, equal to or less than a volume of a portion of the liquid contents accommodating portion below a virtual line obtained by extending a lower end edge of an inner peripheral surface of a dispensing hole of the spout in an extending direction of the lower end edge, when viewed in the front-rear direction. 
     
     
         16 . A spout pouch comprising:
 a pouch main body; and   a spout attached to the pouch main body, wherein   the pouch main body includes a spout attachment film to which the spout is attached,   the spout includes a flange disposed facing the spout attachment film, and   the flange includes:   a flange fixing portion fixed to the spout attachment film; and   a flange buffering portion formed in at least a partial region of an outer periphery of the flange fixing portion and not fixed to the spout attachment film.   
     
     
         17 . The spout pouch according to  claim 16 , wherein
 the spout attachment film includes a flange facing region where the flange faces the spout attachment film, and   the flange buffering portion is an area having a radial direction width formed to 30 to 80% of a radial direction width of the flange facing region at a position where the flange buffering portion is formed.   
     
     
         18 . The spout pouch according to  claim 16 , wherein the flange buffering portion is an area having a radial direction width formed to 650% or more of a thickness of the spout attachment film. 
     
     
         19 . The spout pouch according to  claim 16 , wherein
 the flange buffering portion is an area having a radial direction width formed to 2 mm or greater, and   the flange fixing portion has a radial direction width formed to 2 mm or greater.   
     
     
         20 . The spout pouch according to  claim 16 , wherein
 the pouch main body further includes a side film connected to the spout attachment film by a connection seal formed on both sides of the spout attachment film in a transverse direction,   the spout is attached at a position, among a first side and a second side in a longitudinal direction, closer to the second side than to a center of the spout attachment film in the longitudinal direction, and   the flange buffering portion is formed at a position including a portion facing the first side in the longitudinal direction at a center of an outer periphery of the flange fixing portion in the transverse direction.   
     
     
         21 . The spout pouch according to  claim 16 , wherein
 the pouch main body further includes a side film connected to the spout attachment film by a connection seal formed on both sides of the spout attachment film in a transverse direction,   the spout is attached at a position, among a first side and a second side in a longitudinal direction, closer to the second side than to a center of the spout attachment film in the longitudinal direction, and   the flange buffering portion is formed at a position including a portion facing the second side in the longitudinal direction at a center of an outer periphery of the flange fixing portion in the transverse direction.   
     
     
         22 . The spout pouch according to  claim 20 , wherein
 the flange buffering portion includes a wide portion having a largest width in a radial direction of the flange buffering portion, and   the wide portion is formed at a position including a portion facing the first side in the longitudinal direction at the center of the outer periphery of the flange fixing portion in the transverse direction.   
     
     
         23 . The spout pouch according to  claim 20 , wherein
 the flange buffering portion includes a wide portion having a largest width in a radial direction of the flange buffering portion, and   the wide portion is formed at a position including a portion facing the second side in the longitudinal direction at the center of the outer periphery of the flange fixing portion in the transverse direction.   
     
     
         24 . The spout pouch according to  claim 16 , wherein the flange buffering portion includes a retracted portion including an outer peripheral side tip end portion positioned on a side away from the spout attachment film. 
     
     
         25 . The spout pouch according to  claim 24 , wherein the retracted portion includes a curved surface curving closer to the side away from the spout attachment film toward an outer peripheral side. 
     
     
         26 . The spout pouch according to  claim 16 , wherein
 the pouch main body further includes a side film connected to the spout attachment film by a connection seal formed on both sides of the spout attachment film in a transverse direction,   the spout attachment film includes a flange facing region where a flange of the spout faces the spout attachment film,   the pouch main body includes a shape control sealing portion formed by fusing a portion of the spout attachment film positioned inward of the connection seal in the transverse direction and the side film, and   the shape control sealing portion includes a portion positioned in a region between the flange facing region and the connection seal in the transverse direction.