JP2011037489A - Pouch container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pouch container that has good self-standing and heat-insulation properties, and is a side gusset type which does not give one uncomfortable feelings when holding in a hand. <P>SOLUTION: The pouch container includes a container body 10 that is formed in a bag shape with a flexible sheet and a spout 20 that is attached to the container body 10. The container body 10 includes a pair of front and back outer package sheets 11, a pair of left and right inner gusset sheets 12 that are folded from both side edges of both the outer package sheets 11 to the inside of the container to form left and right inner gusset portions, and a pair of left and right outer gusset sheets 13 that are projected from both side edges of both the outer package sheets 11 to the outside of the container in a state that the outer gusset sheets are double-folded to form outer gusset portions. The container body is formed in a bag shape by heat sealing the outer package sheets 11 and the inner gusset sheets 12. Both the side edges of the outer gusset sheets 13 are heat sealed to both the side edges of the inner gusset sheets 12 in a state that upper and lower ends of the outer gusset sheets coincident with upper and lower ends of the outer package sheet 11. Lower end portions of the outer gusset sheets are made to be a pair of left and right leg portions. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a pouch container filled with a liquid beverage such as a soft drink, a liquid such as a food, a liquid food, a pharmaceutical or a detergent, or a viscous material.

  As this type of pouch container, for example, as shown in FIG. 12, there is a pouch container 50 with a spout in which a spout 52 is attached to a side gusset-type pouch 51. The gusset sheet 51b is folded inward from both sides of the pair of exterior sheets 51a, the peripheral edge of the gusset sheet 51b is heat sealed to the exterior sheet 51a, and the upper and lower edges of the exterior sheet 51a are mutually heated. It is formed in a bag shape by being sealed.

JP-A-2005-263260

  By the way, in such a side gusset pouch, when the pouch 51 is held in the hand and the filled contents are directly taken or poured from the spout 52, the side edge of the exterior sheet 51a and the side edge of the gusset sheet 51b There is a problem that the edge part of the side edge seal part where the heat seal is applied to the palm and there is an uncomfortable feeling.

  In the case of a large-capacity pouch with a wide gusset portion, when the contents are filled, the spread in the depth direction at the bottom increases, and when this is placed, the weight of the contents causes the bottom to move downward. Since the bottom seal part, which is overhanging and the bottom edge of the exterior sheet is heat-sealed, is bent by being pressed against the mounting surface, it can secure some self-supporting performance, but the width of the gusset part is narrow, thin In the case of a small-capacity pouch, even if the contents are filled, since the spread in the depth direction at the bottom is small and the weight of the contents is small, the bottom seal portion protruding from the bottom is difficult to bend and difficult to stand by itself. is the current situation.

  In particular, in the case of foods such as ice cream and beverages whose contents are cooled or warmed, when trying to improve the heat insulation performance of the pouch 51 itself, the thickness of the sheet forming the pouch 51 is increased. However, when the thickness of the sheet is increased, the rigidity of the bottom seal portion is increased, and it becomes more difficult to be independent.

  Therefore, an object of the present invention is to provide a side gusset-type pouch container that has no uncomfortable feeling even when it is held in the hand and has excellent heat insulation performance, and in addition, it can have good self-supporting performance. It is to provide a pouch container.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a content storage portion in which an inner gusset portion is formed by a pair of left and right inner gusset sheets folded inward between both side portions of a pair of front and back exterior sheets. And a side gusset-type pouch container, characterized in that it has an outer gusset portion formed by a pair of left and right outer gusset sheets that are folded outward from both sides of the content storage portion. To do.

  The invention according to claim 2 is the pouch container of the invention according to claim 1, wherein a lower end position of the outer gusset portion is the same as a lower end of the content accommodating portion or a lower side than the content accommodating portion. It is characterized by being located in.

  The invention according to claim 3 is the pouch container of the invention according to claim 1 or 2, wherein the contents storage portion is arranged such that the side edges of the inner gusset sheet project outward. The both side edges of the inner gusset sheet and the inner portions of the both side edges of the inner gusset sheet are heat-sealed with each other, and the outer gusset section has both sides of the outer gusset sheet and both sides of the inner gusset sheet. It is formed by heat sealing.

  According to a fourth aspect of the present invention, in the pouch container according to any one of the first to third aspects, the pair of front and back exterior sheets and the pair of left and right outer gusset sheets are formed by a single sheet. It is characterized by that.

  In the pouch container of the invention according to claim 1, since both side edges of the inner gusset sheet are covered with the outer gusset sheet folded in half, the inner gusset can be handled even when the pouch container is held in hand. The edge portions on both side edges of the sheet do not hit the palm, and there is no discomfort.

  In addition, a space is formed between the inner gusset sheet and the outer gusset sheet, and air having a high heat insulation effect exists in this space, so that heat insulation performance is imparted to both side edge portions of the pouch container. become. Therefore, if you hold this pouch container so that one side edge is pinched with your thumb and the other side edge is sandwiched between your fingers so as not to touch the exterior sheet, the ice will cool or warm the contents. Even in the case of foods such as creams and beverages, it is possible to obtain an effect that it is difficult to feel coldness or heat in the hand holding this pouch container.

  Further, when the pouch container of the invention according to claim 2 is filled with the contents, the bottom part of the contents accommodating part spreads in the depth direction, so that the lower end edges of the exterior sheet projecting downward from the bottom part are heat sealed. The bottom seal part is slightly lifted, but the lower edge of the pair of left and right outer gusset parts provided on both sides of the contents storage part will not be lifted. The bottom part functions as a leg part, and the bottom seal part that protrudes downward from the bottom part of the content container part is in a raised state, so even a thin and small-capacity pouch container with a narrow gusset part width Can be independent in a stable state.

  In addition, the pouch container of the invention according to claim 3 is excellent in aesthetics of the entire pouch container and has a hand when it is held in the hand, because there is no step at the joint between the exterior sheet and the outer gusset sheet on the surface. Discomfort can be further reduced.

  Further, the pouch container of the invention according to claim 4 is formed by forming a pair of front and back exterior sheets and a pair of left and right outer gusset sheets that are exposed to the outside with a single sheet. When displaying characters, etc., display printing can be performed continuously from the exterior sheet to the outer gusset sheet, increasing the degree of freedom in display design, and design between the exterior sheet and the outer gusset sheet. It can be finished neatly because there is no deviation.

It is a perspective view showing one embodiment of a pouch container concerning this invention. It is a front view which shows a pouch container same as the above. It is sectional drawing along the XX line of FIG. (A) is a front view showing an exterior sheet, an inner gusset sheet and an outer gusset sheet constituting the above-described pouch container, and (b) is a plan view showing the exterior sheet, the inner gusset sheet and the outer gusset sheet. . (A) is a front view which shows the state which filled the content in the pouch container same as the above, and was mounted, (b) is a top view which shows the state which filled the content in the pouch container same as the above and mounted. It is a perspective view which shows the pouch container which is other embodiment. It is a front view which shows a pouch container same as the above. (A) is a front view which shows the state which filled the content in the pouch container same as the above, and was mounted, (b) is a top view which shows the state which filled the content in the pouch container same as the above and mounted. (A) is a front view which shows the pouch container which is other embodiment, (b) is a rear view which shows a pouch container same as the above. (A) is a front view which shows the pouch container which is other embodiment, (b) is a rear view which shows a pouch container same as the above. It is sectional drawing which followed the YY line | wire of FIG.9 (b), and the ZZ line | wire of FIG.10 (b). It is sectional drawing which shows the part corresponding to FIG. 3 in other embodiment. It is sectional drawing which shows the part corresponding to FIG. 3 in other embodiment. It is sectional drawing which shows the part corresponding to FIG. 3 in other embodiment. It is sectional drawing which shows the part corresponding to FIG. 3 in other embodiment. It is a perspective view which shows the conventional pouch container.

  Hereinafter, embodiments will be described with reference to the drawings. As shown in FIGS. 1 and 2, the pouch container 1 includes a container body 10 formed in a bag shape by a flexible sheet, and a spout 20 formed by a thermoadhesive resin attached to the container body 10. The container body 10 includes a pair of leg portions 10A on both sides thereof.

  As shown in FIGS. 4A and 4B, the container body 10 is made of a 12 μm-thick base material layer formed of polyethylene terephthalate, a 7 μm-thick gas barrier layer formed of aluminum foil, and polyamide. A pair of front and back exterior sheets 11 and 11 having a four-layer structure in which a 15 μm thick reinforcing layer and a 70 μm thick sealant layer formed of polyethylene are sequentially laminated, and both sides of both exterior sheets 11 and 11 are formed. A pair of left and right inner gusset sheets 12, 12 having the same structure as the outer sheet 11, which are folded inwardly to form left and right inner gusset parts, and from both sides of both outer sheets 11, 11 in a folded state Except for the point that the thickness of the sealant layer that protrudes outward to form the outer gusset portion is 100 μm, the left and right of the same structure as the exterior sheet 11 It consists of a pair of outer gusset sheets 13 and 13.

  And as shown in FIG.2 and FIG.3, both the side edge part SE1 of exterior sheet | seat 11,11 and inner gusset sheet | seat 12,12 so that both side edge part SE2 of the inner gusset sheet | seat 12,12 may protrude outward. The inner portions IP of the side edge portions SE2 are heat-sealed with each other, and the peripheral edge portions of the inner gusset sheets 12, 12 except for the side edge portions SE2 are heat-sealed to the exterior sheets 11, 11, and The edge portions DE1 are heat-sealed with each other, whereby the content storage portion is formed in a bag shape.

  As shown in FIG. 4, the outer sheet 11 and the inner gusset sheet 12 that is folded inward from both sides of the outer sheets 11, 11 are located on the inner side toward the lower side below the respective side edge parts SE 1, SE 2. The lower inclined edges DS1 and DS2 are inclined downward, and the lower part from the upper end of the lower inclined edges DS1 and DS2 forms the bottom of the content container in the container body 10. Yes.

  As shown in FIGS. 2 and 3, the outer gusset sheets 13, 13 have upper and lower ends aligned with the upper and lower ends of the exterior sheets 11, 11, and both side edges SE 3 are the inner gusset sheets 12. The outer gusset sheets 13 and 13 are heat-sealed with each other to form an outer gusset sheet 12. , 12 is a pair of left and right leg portions 10A described above.

  The container body 10 thus formed has an open upper end, but when the spout 20 is attached to the container body 10, the outer gusset sheet in which the upper edges of the exterior sheets 11 and 11 are folded in two. 13 and 13 are closed together by heat sealing together with the upper edge portion. A shaded display portion in FIG. 2 indicates a heat seal portion of the container body 10.

  The spout 20 is made of polyethylene, polypropylene, or the like, and has a fixing portion 21 attached to the bag-shaped container body 10 and a mouthpiece or spout that can be opened and closed by a screw cap 22 provided on the fixing portion 21. And a lead-out pipe (not shown) provided in the lower part of the fixing portion 21 for sucking up the contents filled in the container main body 10. The lead-out pipe is formed in the container main body 10. In the inserted state, the side surface of the fixing portion 21 is heat-sealed to the upper edge portion of the container body 10.

  The pouch container 1 configured as described above has both side edges of the inner gusset sheets 12 and 12 covered by the outer gusset sheets 13 and 13 that are folded in half. Even if it is a case, the edge part of the both-sides edge of the inner gusset sheet | seats 12 and 12 does not hit a palm, and does not give discomfort. In particular, the contents storage portion mutually connects the side edge portions SE1 of the exterior sheet 11 and the inner side portions IP of the side edge portions SE2 of the inner gusset sheet 12 so that the side edge portions SE2 of the inner gusset sheet 12 project outward. Since the outer gusset portion is formed by heat-sealing both side edges SE3 of the outer gusset sheet 13 and both side edges SE2 of the inner gusset sheet 12, the outer sheet 11 and the outer gusset sheet are formed. Since there is no level difference at the joint with 13, it is possible to further reduce discomfort when it is held in the hand, and the aesthetic properties of the entire pouch container 1 are excellent.

  In addition, a space is formed between the inner gusset sheets 12 and 12 and the outer gusset sheets 13 and 13, and air having a high heat insulating effect exists in this space. Thermal insulation performance will be provided. Therefore, when the pouch container 1 is held such that one side edge is sandwiched with the thumb and the other side edge is sandwiched with the remaining fingers so as not to touch the exterior sheets 11, 11, the contents are cooled, Even in the case of foods such as ice cream and beverages that are warmed up, an effect that it is difficult to feel coldness or heat in the hand holding the pouch container 1 can be obtained.

  Further, when the pouch container 1 is filled with the contents, as shown in FIGS. 5A and 5B, the outer sheets 11, 11 and the inner gusset sheet 12 together with the inner gusset part and the outer gusset part of the container body 10. The bottom seal portion formed by heat-sealing the lower edge portions DE1 of the exterior sheets 11 and 11 projecting downward from the bottom portion by spreading the bottom portion of the content accommodating portion formed by 12 and 12 in the depth direction. Is slightly lifted, but the lower edge of the outer gusset portion formed by the pair of left and right outer gusset sheets 13 and 13 whose lower portions are not heat-sealed to both side edges of the inner gusset sheets 12 and 12 will not be lifted. , The lower part of the outer gusset part functions as the leg part 10A, and the bottom seal part protruding downward from the bottom part of the content container part floats. Since the wanted state, the width of the gusset portion is narrow, even pouch package small volume thin, can be free-standing in a stable state.

  In particular, in this pouch container 1, the outer gusset sheet 13 is thicker than the outer sheet 11 and the inner gusset sheet 12, so that the rigidity of the leg part 10 </ b> A formed by the outer gusset part in the container body 10 is increased. As a result, the leg portion 10A is difficult to sag.

  In the pouch container 1 described above, the upper edge portions of the outer gusset sheets 13 and 13 folded in half are heat-sealed with each other. However, the present invention is not limited to this, and FIGS. As in the pouch container 2 shown in a) and (b), the outer gusset portion is opened from the upper end in a state where the contents are filled without mutually heat-sealing the upper edge portions of the outer gusset sheets 13 and 13. You may make it open similarly to a lower end.

  However, in that case, in order to hold the container main body 10 in a predetermined shape when the contents are filled, portions corresponding to the upper corners of both side edges of the exterior sheet 11 in the inner gusset sheet 12 folded in half It is desirable that a notch 12a is formed in the first and second pair of outer and outer sheets 11 and 11 to be point-sealed (heat-sealed) to each other via the notch 12a.

  Moreover, in each embodiment mentioned above, although the exterior sheets 11 and 11 and the outer gusset sheet | seats 13 and 13 are formed with the separate sheet | seat, it is not limited to this, For example, Fig.9 (a), Like the pouch container 3 shown in (b) and the pouch container 4 shown in FIGS. 10 (a) and 10 (b), a pair of front and back exterior sheets 11, 11 and a pair of left and right outer gusset sheets 13, 13 are continuously connected. It is also possible to configure with a sheet 14.

  Specifically, as shown in FIG. 11, one continuous sheet 14 is folded so as to wrap a pair of left and right inner gusset sheets 12, 12 and one side edge is folded in half. In a state where the inner gusset sheet 12 is superposed on one side edge (the back side of the pouch container), the other side edge is abutted against the side edge, and both side edges of the inner gusset sheets 12 and 12 and the continuous sheet 14 are connected. What is necessary is just to heat seal.

  As described above, when the pair of front and back exterior sheets 11 and 11 and the pair of left and right outer gusset sheets 13 and 13 are configured by a single sheet 14, a pouch can be displayed when design or characters are displayed on the outer surface of the pouch container 1. Display printing can be performed continuously on the entire surface on the front side and the back side of the containers 3 and 4 (part corresponding to the exterior sheet and one outer gusset sheet), and the degree of freedom in display design is increased. Since there is no design shift between the exterior sheet and the outer gusset sheet, it can be finished neatly.

  In the pouch container 1 described above, the outer gusset sheets 13 and 13 have their upper and lower ends aligned with the upper and lower ends of the exterior sheets 11 and 11 as shown in FIGS. Both side edges SE3 are heat-sealed to both side edges SE2 of the inner gusset sheets 12, 12, but as described above, in order to provide self-supporting, the contents container is filled with contents. The bottom gusset sheets 13 and 13 are formed at the lower ends of the outer gusset sheets 13 and 13 so that the bottom seal portion protruding downward from the bottom portion of the contents accommodating portion is lifted. 11 and 11 may be heat-sealed to both side edges SE2 of the inner gusset sheets 12 and 12, with the side edges SE3 projecting downward from the lower ends of the 11 and 11, respectively.

  In the pouch container 1 described above, both side edges SE1 of the exterior sheets 11, 11 are extended to both side edges of the inner gusset sheets 12, 12 so that both side edges SE2 of the inner gusset sheets 12, 12 project outward. While heat-sealing to the inner part IP of SE2, both side edges SE2 of the inner gusset sheets 12, 12 projecting the both side edges SE3 of the outer gusset sheets 13, 13 outward from the side edges SE1 of the exterior sheets 11, 11 However, the present invention is not limited to this. For example, as shown in FIG. 12, both side edges SE1 of the exterior sheets 11 and 11 are both side edges SE2 of the inner gusset sheets 12 and 12. The side edges SE2 of the inner gusset sheets 12, 12 are heat-sheathed to the inner portions IP of the side edges SE1 of the exterior sheets 11, 11 so as to project outward from the While Le, the side edges SE3 of the outer gusset sheets 13 and 13 may be heat-sealed to side edges SE1 of the exterior sheet 11, 11.

  Moreover, in each embodiment mentioned above, although the inner gusset sheet | seat 12 and the outer gusset sheet | seat 13 are formed with a separate sheet | seat, it is not limited to this, As shown in FIG. It is also possible to adopt a tube-like sheet 15 in which the outer gusset sheet 13 is integrated, and in this case, as shown in the figure, the central part in the width direction of the tube-like sheet 15 folded flat is used. What is necessary is just to heat seal to the side edge part of the exterior sheet | seat 11 by predetermined width.

  Moreover, in each embodiment mentioned above, although the outer gusset sheet 13 is heat-sealed to the inner gusset sheet 12 or the exterior sheet 11, it is not limited to this, For example, as shown in FIG. The side edge of the sheet 13 can be attached to the outer surface of the exterior sheet 11 using an adhesive, a double-sided adhesive tape, or the like, or can be attached to the outer surface of the inner gusset sheet 12 as shown in FIG. .

  Moreover, although each embodiment mentioned above demonstrated the pouch containers 1-4 by which the spout 20 was mounted | worn with the bag-shaped container main body 10, it is not limited to this, It is this invention also about the pouch container without a spout. It goes without saying that can be applied.

  The present invention can be applied to pouch containers that are required to be self-supporting.

1, 2, 3, 4 Pouch container 10 Container body 10A Leg part 11 Exterior sheet 12 Inner gusset sheet 13 Outer gusset sheet 14 Continuous sheet 15 Tubular sheet SE1 Side edge of exterior sheet SE2 Side edge of inner gusset sheet SE3 Outside Side edge portion of gusset sheet IP Inner portion of side edge portion of gusset sheet in IP DE1 Lower edge portion of exterior sheet DS1 Lower inclined edge of exterior sheet DS2 Lower inclined edge on inner gusset sheet 20 Spout 21 Adhering portion 22 Screw cap

Claims (4)

A content storage portion in which an inner gusset portion is formed by a pair of left and right inner gusset sheets folded inward between both side portions of a pair of front and back exterior sheets;
A side gusset-type pouch container comprising an outer gusset portion formed by a pair of left and right outer gusset sheets that project outward from both sides of the content storage portion.   2. The pouch container according to claim 1, wherein a lower end position of the outer gusset portion is the same as a lower end of the content accommodating portion or is located below the content accommodating portion. The content container heat-seals both side edges of the exterior sheet and inner portions of both side edges of the inner gusset sheet such that both side edges of the inner gusset sheet project outward. Formed,
The pouch container according to claim 1 or 2, wherein the outer gusset portion is formed by heat-sealing both side edges of the outer gusset sheet and both side edges of the inner gusset sheet.   The pouch container according to any one of claims 1 to 3, wherein the pair of front and back exterior sheets and the pair of left and right outer gusset sheets are formed by a single sheet.

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