WO2023037474A1 - シート材容器 - Google Patents

シート材容器 Download PDF

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Publication number
WO2023037474A1
WO2023037474A1 PCT/JP2021/033180 JP2021033180W WO2023037474A1 WO 2023037474 A1 WO2023037474 A1 WO 2023037474A1 JP 2021033180 W JP2021033180 W JP 2021033180W WO 2023037474 A1 WO2023037474 A1 WO 2023037474A1
Authority
WO
WIPO (PCT)
Prior art keywords
vertically extending
sheet material
side edge
edge seal
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/033180
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
彰 倉賀野
貴宏 大島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kao Corp filed Critical Kao Corp
Priority to JP2023546650A priority Critical patent/JP7622240B2/ja
Priority to PCT/JP2021/033180 priority patent/WO2023037474A1/ja
Publication of WO2023037474A1 publication Critical patent/WO2023037474A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction

Definitions

  • the present invention relates to a sheet material container.
  • Patent Document 1 A sheet material container having a structure in which a plurality of films are laminated and a filler such as air is enclosed between the layers is described in Patent Document 1, for example.
  • the sheet material container of Patent Document 1 includes a container having a storage area for storing contents, a bag body covering the container, and a bag body-constituting sheet material constituting the bag body, and the container comprises: It has a front portion and a back portion, but does not have a side portion.
  • the bag-constituting sheet material includes a joint portion where a plurality of film layers are joined together and a non-joint portion where the plurality of film layers are partially unjoined, and the plurality of films in the non-joint portion A filler is enclosed between the layers to form a filler.
  • the present invention is a sheet material container constructed with one or more sheet materials including a body forming sheet material having an outer film layer and an inner film layer laminated to each other, the container containing a content.
  • the container main body has a front side forming sheet portion forming the front side of the body portion, a back side forming sheet portion forming the back side of the body portion, and a bottom forming sheet portion forming the bottom portion.
  • first side edge seal portion in which one side edge of the front side constituent sheet portion and one side edge of the back side constituent sheet portion are indirectly or directly joined; a first front lower side edge seal portion in which one side edge of the side constituent sheet portion side and the one side edge of the front side constituent sheet portion are indirectly or directly joined; and the bottom constituent sheet. a first back lower side edge seal portion in which one side edge of the back side constituent sheet portion side half of the part and the one side edge of the back side constituent sheet portion are indirectly or directly joined; A front portion constituted by a central portion in the width direction of the front-side constituent sheet portion, and a portion adjacent to one side of the front portion in the front-side constituent sheet portion.
  • the main body constituting sheet material includes a main body seal portion where the outer film layer and the inner film layer are joined, and the outer film layer and the inner film layer. and a partially non-bonded non-bonded portion, and a filling portion capable of enclosing a filler between the outer film layer and the inner film layer in the non-bonded portion,
  • the filling portion has a first vertically extending portion and a second vertically extending portion that extend vertically along a boundary between the front portion and the first side portion, and the first vertically extending portion and the upper end of the second vertically extending portion is located above the intersection of the first side edge seal portion, the first front lower side edge seal portion, and the first rear lower side edge seal portion.
  • first vertically extending portion and the second vertically extending portion are connected to the first side edge seal portion, the first front lower side edge seal portion, and the first rear lower side edge seal portion.
  • sheet material receptacle located below the intersection of It relates to a sheet material container.
  • FIG. 1 is a perspective view of a sheet material container after enclosing a filler according to the first embodiment
  • FIG. FIG. 4 is a front view of the sheet material container after enclosing the filler according to the first embodiment
  • FIG. 4 is a rear view of the sheet material container after enclosing the filler according to the first embodiment
  • FIG. 4 is a side view of the sheet material container after enclosing the filler according to the first embodiment
  • It is a bottom view of the sheet material container after enclosing the filler according to the first embodiment.
  • FIG. 4 is an exploded perspective view showing an outer film layer and an inner film layer of the main body-constituting sheet material;
  • FIG. 4 is an exploded perspective view showing an outer film layer and an inner film layer of the main body-constituting sheet material
  • FIG. 4 is an exploded perspective view showing an inner bag-constituting sheet material and a main body-constituting sheet material;
  • FIG. 4 is a plan view showing a container-constituting sheet material having an inner bag-constituting sheet material and a main body-constituting sheet material that are laminated to each other;
  • FIG. 11 is a perspective view of the sheet material container after enclosing the filler according to the modified example of the first embodiment;
  • FIG. 5 is a side view of the sheet material container after enclosing the filler according to the modified example of the first embodiment;
  • FIG. 4 is a plan view showing a container-constituting sheet material having an inner bag-constituting sheet material and a main body-constituting sheet material that are laminated to each other;
  • FIG. 11 is a front view of the sheet material container after enclosing the filler according to the second embodiment;
  • FIG. 11 is a side view of the sheet material container after enclosing the filler according to the second embodiment;
  • 14(a) and 14(b) are schematic cross-sectional views of the sheet material container after enclosing the filler according to the second embodiment, of which FIG. The state before covering the main body is shown, and FIG. 14(b) shows the state where the main body of the container is covered with the protective cover.
  • the sheet material container of Patent Document 1 still has room for improvement in terms of structural strength.
  • the present invention relates to a sheet material container with a structure capable of achieving better structural strength.
  • the sheet material container 100 includes one or more sheet materials including a main body constituting sheet material 21 having an outer film layer and an inner film layer laminated to each other.
  • the container body 20 includes a first side edge sealing portion 46 in which one side edge 31a of the front side constituent sheet portion 31 and one side edge 32a of the back side constituent sheet portion 32 are indirectly or directly joined, and a bottom surface configuration.
  • a first front lower side edge seal in which one side edge of a half portion 33a of the sheet portion 33 on the front side constituent sheet portion 31 side and one side edge 31a of the front side constituent sheet portion 31 are indirectly or directly joined.
  • 48a and one side edge of the half portion 33b of the bottom surface constituting sheet portion 33 on the side of the back side constituting sheet portion 32 and one side edge 32a of the back side constituting sheet portion 32 are indirectly or directly joined to each other.
  • the front portion 20a constituted by the rear lower side edge seal portion 49a, the central portion in the width direction of the front-side constituent sheet portion 31, and the portion of the front-side constituent sheet portion 31 adjacent to one side of the front portion 20a. and a first side portion 20c intersecting the front portion 20a, and a portion adjacent to the other side of the front portion 20a in the front side constituent sheet portion 31. and a second side portion 20d intersecting with 20a.
  • the body-constituting sheet material 21 includes a body seal portion 26 where the outer film layer 22 and the inner film layer 23 are joined, and a non-bonded portion where the outer film layer 22 and the inner film layer 23 are partially unbonded.
  • the filling portion 60 has a first vertically extending portion 61a and a second vertically extending portion 61b extending vertically along the boundary between the front portion 20a and the first side portion 20c.
  • the upper ends of the first vertically extending portion 61a and the second vertically extending portion 61b are the intersections of the first side edge seal portion 46, the first front lower side edge seal portion 48a, and the first rear lower side edge seal portion 49a.
  • first vertically extending portion 61a and the second vertically extending portion 61b are connected to the first side edge seal portion 46, the first front lower side edge seal portion 48a and the first side edge seal portion 48a. It is located below the intersection point 46b of the rear lower side edge seal portion 49a.
  • indirectly or directly joined means that another layer may be interposed between the sheet portions, or the sheet portions are directly joined without intervening another layer. may be
  • the sheet material container 100 has a first vertically extending portion 61a and a second vertically extending portion 61b extending vertically along the boundary between the front portion 20a and the first side portion 20c. have.
  • the sheet material container 100 can withstand a force applied in the vertical direction, for example, compared to the case where there is one vertically extending portion that extends vertically along the boundary between the front portion 20a and the first side portion 20c. Since the deformation resistance of the sheet material container 100 can be further improved, for example, even if the sheet material container 100 is subjected to impact due to dropping or the like, the deformation (crushing) of the sheet material container 100 can be more reliably suppressed.
  • first and second vertical extension portions 61a and 61b are formed into the first side edge seal portion 46, the first front lower side edge seal portion 48a, and the first rear lower side edge seal portion.
  • the lower ends of the first and second vertically extending portions 61a and 61b are located above the intersection point 46b of the first and second vertically extending portions 61a and 61b. and the intersection point 46b of the first rear surface lower side edge seal portion 49a.
  • the periphery of the intersection 46b is reinforced by each of the first vertically extending portion 61a and the second vertically extending portion 61b.
  • the first and second vertically extending portions 61a and 61b can reduce the impact applied to the intersection 46b.
  • one side edge 31a of the front side constituent sheet portion 31 and one side edge 32a of the back side constituent sheet portion 32 are joined together, and the front side constituent sheet portion 31 side half of the bottom surface constituent sheet portion 33 is formed.
  • the state in which the edge and the one side edge 32a of the back side constituent sheet portion 32 are joined can be maintained well.
  • the container body 20 includes a second side surface portion 20d, a second side edge seal portion 47, a second front lower side edge seal portion 48b, and a second rear lower side edge seal portion 48b.
  • a side edge seal portion 49b is further provided.
  • the filling portion 60 includes a third vertically extending portion 61c and a fourth vertically extending portion 61c that extend vertically in parallel along the boundary between the front surface portion 20a and the second side surface portion 20d. It has a vertically extending portion 61d.
  • the upper ends of the third vertically extending portion 61c and the fourth vertically extending portion 61d are the second side edge seal portion 47, the second front lower side edge seal portion 48b, and the second rear lower side edge seal portion 49b.
  • the lower ends of the third vertically extending portion 61c and the fourth vertically extending portion 61d are located above the intersection 47b with the second side edge seal portion 47 and the second front lower side edge seal portion 48b and the second rear surface lower side edge seal portion 49b.
  • the periphery of the intersection 47b is reinforced by each of the third vertically extending portion 61c and the fourth vertically extending portion 61d.
  • the third vertically extending portion 61c and the fourth vertically extending portion 61d can reduce the impact applied to the intersection 47b. Therefore, better structural strength of the sheet material container 100 can be achieved.
  • the type of content is not particularly limited.
  • Contents include, for example, shampoos, rinses, body soaps, detergents, bleaches, softeners, beverages, foods, as well as engine oils and chemicals.
  • the content may be liquid (including paste) or solid (for example, granular (including granular), powder, etc.).
  • the content is liquid, for example.
  • the viscosity of the content is preferably 1 mPa s or more and 120,000 mPa s or less at 30° C. (measured with a Brookfield viscometer. For example, Viscometer TV-10 manufactured by Toki Sangyo Co., Ltd. or measured with a viscometer TVB-10 or the like), and more preferably from 1 mPa ⁇ s to 60,000 mPa ⁇ s.
  • the container body 20 is formed in a bag-like shape having, for example, a trunk portion 11, a top gusset 14 arranged on the upper side of the trunk portion 11, and a bottom portion 13 arranged on the lower side of the trunk portion 11. there is
  • the present invention is not limited to this example, and the container body 20 may not have the top gusset 14 .
  • the container body 20 surrounds the receiving area 17 .
  • the container body 20 surrounds the inner bag 40 .
  • the sheet material container 100 includes the inner bag 40 arranged inside the container body 20 , and the inner bag 40 has the accommodation area 17 .
  • the inner bag 40 is composed of an inner bag-constituting sheet material 41 which is the innermost sheet material among one or more sheet materials.
  • the container body 20 constitutes the outer shell of the sheet material container 100 .
  • the trunk portion 11 , top gusset 14 and bottom portion 13 of the container body 20 may be referred to as the trunk portion 11 , top gusset 14 and bottom portion 13 of the sheet material container 100 .
  • the sheet material container 100 can stand on its own while the bottom 13 is placed on a horizontal placement surface. More specifically, the bottom portion 13 has, for example, a ground surface 13a (bottom gusset) that is grounded when the sheet material container 100 is placed on a horizontal placement surface and stands on its own.
  • the entire ground surface 13a is not necessarily in contact with the mounting surface.
  • a portion of the ground surface 13a may be floating from the mounting surface.
  • the ground contact surface 13a is an inner range of an envelope that envelops all the points contacting the mounting surface at the shortest distance. More specifically, as shown in FIG.
  • the ground plane 13a includes a boundary line (corresponding to a bending line 81 described later) between the front-side component sheet portion 31 and the bottom-side component sheet portion 33, and a rear-side component sheet. It is a portion closer to the center of the bottom surface constituting sheet portion 33 than the boundary line between the portion 32 and the bottom surface constituting sheet portion 33 (corresponding to a bending line 82 to be described later), and fits inside the outline of the bottom portion 13 in plan view. ing. As shown in FIGS. 2 and 3, the peripheral edge of the bottom portion 13 rises outward and therefore typically does not form the ground surface 13a.
  • the positional relationship (vertical relationship, etc.) of each component of the sheet material container 100 will be described with the sheet material container 100 standing on its own as shown in FIGS. 1 and 2, unless otherwise specified. It explains the positional relationship of. However, the positional relationship in these descriptions does not necessarily match the positional relationship when the sheet material container 100 is used or manufactured. Further, regarding the positional relationship of each component of the sheet material container 100, the positional relationship shown in each drawing may be described.
  • the front side of the sheet material container 100 (the front side of the paper surface in FIG. 2) is called the front side
  • the back side of the sheet material container 100 (the back side of the paper surface of FIG. 2) is called the rear side
  • the left side when facing the front of the sheet material container 100.
  • the left side (left side in FIG. 2) is referred to as the left side
  • the right side (right side in FIG. 2) as viewed from the front of the sheet material container 100 is referred to as the right side.
  • the left-right direction of the sheet material container 100 may be referred to as the width direction.
  • the container body 20 has, for example, a substantially polygonal prism shape.
  • the side peripheral surface of the container body 20 has a structure having three or more planar portions, so that the sheet material container 100 has a surface on which marking portions and patterns (not shown) can be printed. more can be secured. Therefore, the appearance of the sheet material container 100 can be designed with a higher degree of freedom.
  • the internal volume of the accommodation area 17 can be sufficiently secured.
  • the container body 20 has, for example, three pairs of opposing surfaces, of which adjacent surfaces are substantially perpendicular to each other. It has a rectangular parallelepiped shape (substantially square prism shape).
  • the gap between the sheet material containers 100 adjacent to each other can be made smaller. Therefore, more sheet material containers 100 can be transported at once, and a plurality of sheet material containers 100 can be stored more compactly.
  • the flat cross-sectional shape of the container body 20 is, for example, a substantially square shape.
  • the term "planar portion" as used herein means an area surrounded by a plurality of corners. In this embodiment, each planar portion is surrounded by four corners.
  • the container body 20 includes, for example, a front surface portion 20a, a first side surface portion 20c, a bottom portion 13, a top gusset 14, and a rear portion constituted by a central portion of a rear-side constituent sheet portion 32 in the width direction. 20b, and a second side surface portion 20d that includes a portion adjacent to the other side of the front portion 20a in the front side constituent sheet portion 31 and intersects the front portion 20a.
  • the container body 20 is not limited to a substantially rectangular parallelepiped shape, and may be, for example, a polygonal prism shape such as a substantially triangular prism shape or a substantially pentagonal prism shape.
  • the body portion 11 has a substantially rectangular tubular shape having four planar portions: a front portion 20a, a first side portion 20c, a back portion 20b, and a second side portion 20d. .
  • the width dimension (horizontal dimension) of the front portion 20a, the width dimension (horizontal dimension) of the first side portion 20c, the width dimension (horizontal dimension) of the back portion 20b, and the width dimension (vertical dimension) of the second side portion 20d are, for example, , are set substantially equivalent to each other.
  • the front portion 20a and the rear portion 20b face each other in the front-rear direction so as to be substantially parallel to each other with the accommodation area 17 interposed therebetween.
  • the front part 20a is located on the front side, and the back part 20b is located on the back side.
  • the first side surface portion 20c and the second side surface portion 20d face each other in the left-right direction so as to be substantially parallel to each other with the accommodation area 17 interposed therebetween.
  • the first side portion 20c is located on the left side, and the second side portion 20d is located on the right side.
  • the front edge of the first side portion 20c is connected to the left edge of the front portion 20a, and the rear edge of the first side portion 20c is connected to the left edge of the back portion 20b.
  • the front edge of the second side portion 20d is connected to the right edge of the front portion 20a, and the rear edge of the second side portion 20d is connected to the right edge of the back portion 20b.
  • first side portion 20c connects the left edge of the front portion 20a and the left edge of the back portion 20b to each other.
  • the second side portion 20d connects the right edge of the front portion 20a and the right edge of the back portion 20b.
  • Top gusset 14 and bottom portion 13 face each other in the vertical direction with accommodation area 17 interposed therebetween.
  • the front edge of the top gusset 14 is connected to the upper edge of the front portion 20a.
  • the rear edge of the top gusset 14 is connected to the upper edge of the back surface portion 20b.
  • the front edge of the bottom portion 13 is connected to the lower edge of the front portion 20a, and the rear edge of the bottom portion 13 is connected to the lower edge of the back portion 20b.
  • the top gusset 14 interconnects the upper edge of the front portion 20a and the upper edge of the back portion 20b, and interconnects the upper edge of the first side portion 20c and the upper edge of the second side portion 20d. connected.
  • the top gusset 14 is provided with a discharge port for discharging the contents from the storage area 17 .
  • the bottom portion 13 interconnects the lower edge of the front portion 20a and the lower edge of the back portion 20b, and also interconnects the lower edge of the first side portion 20c and the lower edge of the second side portion 20d. .
  • the shape of the front portion 20a and the rear portion 20b when viewed in the front-rear direction is, for example, a substantially rectangular shape elongated vertically.
  • the shape of the first side surface portion 20c and the second side surface portion 20d when viewed in the left-right direction is, for example, a substantially rectangular shape elongated vertically.
  • the front part 20a and the back part 20b are, for example, symmetrical in the front-rear direction.
  • the first side surface portion 20c and the second side surface portion 20d are, for example, symmetrical to each other.
  • the planar shape of the top gusset 14 is not particularly limited, but in this embodiment, the top gusset 14 is formed in a substantially rectangular shape.
  • the planar shape of the bottom portion 13 is not particularly limited, but in the case of the present embodiment, the bottom portion 13 is formed in a substantially rectangular shape.
  • the first side surface portion 20c is positioned on one side of the front portion 20a in the front-side constituent sheet portion 31 and on one side of the back portion 20b in the back-side constituent sheet portion 32. It is composed of a part and
  • the second side surface portion 20d is composed of a portion of the front component sheet portion 31 located on the other side of the front portion 20a and a portion of the back component sheet portion 32 located on the other side of the back portion 20b. ing.
  • the container body 20 includes, for example, a first side portion 16a that is a boundary portion between the front portion 20a and the first side portion 20c, and a second side that is a boundary portion between the front portion 20a and the second side portion 20d.
  • a third side portion 16c that is a boundary portion between the back portion 20b and the first side portion 20c; and a fourth side portion 16d that is a boundary portion between the back portion 20b and the second side portion 20d;
  • the first side portion 16a which is the boundary portion between the front portion 20a and the first side portion 20c, includes a concave surface surrounded by a first vertically extending portion 61a and a second vertically extending portion 61b.
  • each of the first to fourth side portions 16a to 16d includes, for example, a concave surface extending between two corners shared by the two surface portions. exist. More specifically, the majority portions of the first side portion 16a to the fourth side portion 16d in the longitudinal direction are non-filling portions 67 that are not the filling portions 60, and the non-filling portions 67 are concave surfaces. ing. As a result, the first side-shaped portion 16a to the fourth side-shaped portion 16d are chamfered, so that the feeling of gripping the sheet material container 100 can be improved.
  • the first side surface portion 20c and the second side surface portion 20d are symmetrical to each other. More specifically, as shown in FIG. 1, the container body 20 includes, for example, a first side edge seal portion 46, a first front lower side edge seal portion 48a, and a first rear lower side edge seal portion 49a.
  • the seal portion 48b and the other side edge of the half portion 33b of the bottom surface constituting sheet portion 33 on the side of the back side constituting sheet portion 32 and the other side edge 32b of the back side constituting sheet portion 32 are indirectly or directly joined to each other. 2 back lower side edge seal portion 49b.
  • first front lower side edge seal portion 48a and the first rear lower side edge seal portion 49a are connected to the lower end of the first side edge seal portion 46 and bifurcate from the lower end. branched.
  • second front lower side edge seal portion 48b and the second rear lower side edge seal portion 49b are connected to the lower end of the second side edge seal portion 47 and bifurcate from the lower end.
  • the first side edge seal portion 46 is arranged, for example, in the central portion in the width direction of the first side surface portion 20c.
  • the second side edge seal portion 47 is arranged in the center portion in the width direction of the second side surface portion 20d.
  • the central portion in the width direction of the first side surface portion 20c is the central portion in the front-rear direction
  • the central portion in the width direction of the second side surface portion 20d is This is the central portion in the front-rear direction.
  • the container body 20 is provided with a top gusset peripheral seal portion 45 arranged along the periphery of the top gusset 14 .
  • the top gusset peripheral seal portion 45 surrounds the top gusset 14 in a circular fashion, for example.
  • the first side edge seal portion 46 , the second side edge seal portion 47 , and the top gusset peripheral edge seal portion 45 are erected toward the outside of the container body 20 , for example.
  • the first side edge seal portion 46, the second side edge seal portion 47, and the top gusset peripheral edge seal portion 45 are aligned in a direction orthogonal to the extending direction of the first side edge seal portion 46, the second side edge seal portion 47, and the top gusset peripheral edge seal portion 45.
  • the dimensions of the gusset peripheral edge seal portion 45 are, for example, substantially constant.
  • the first side edge seal portion 46 , the second side edge seal portion 47 and the top gusset peripheral edge seal portion 45 have the main body seal portion 26 that joins the outer film layer 22 and the inner film layer 23 .
  • the container body 20 is formed by bending a main body-constituting sheet material 21 (see FIGS. 6 and 8) and joining parts of the peripheral edge portion of the main body-constituting sheet material 21 to each other (in the case of the present embodiment, the inner bag 40 is formed).
  • the inner bag forming sheet material 41 is interposed between them.
  • the inner bag 40 is constructed by joining together portions of the inner bag-constituting sheet material 41 (see FIG. 7) at the periphery. That is, the bag-shaped inner bag 40 is constructed by folding the inner bag-constituting sheet material 41 and joining the peripheral edge portions of the inner bag-constituting sheet material 41 to each other.
  • the inner bag 40 is covered with the container body 20 .
  • the inner bag 40 has a housing area 17 inside the inner bag 40 .
  • the inner container when the inner container that defines the storage area 17 is arranged inside the container body 20, the inner container is not limited to the inner bag 40 made of a sheet material. It may be configured by
  • the shape of the inner bag 40 is not particularly limited, but in the case of this embodiment, the inner bag 40 is formed in the same shape as the container body 20 .
  • the inner bag 40 has a first main surface portion (not shown) located on the front side and a second main surface portion (not shown) located on the back side with the accommodation area 17 interposed therebetween.
  • the sheet material container 100 includes, for example, a spout 15 provided on the top gusset 14 (top surface portion) and a cap portion 70 attached (for example, detachably attached) to the spout 15 .
  • the spout 15 is provided through the top gusset 14. - ⁇ More specifically, as shown in FIG. 2, the spout 15 includes a tubular portion 15a having a spout 15c, a flange portion 15b projecting outward from the base end of the tubular portion 15a, have The cylindrical portion 15a is formed in a cylindrical shape. A screw thread is formed on the outer peripheral surface of the cylindrical portion 15a, and the cylindrical portion 15a has a male thread shape.
  • the cylindrical portion 15 a vertically penetrates the top gusset 14 and protrudes upward from the top gusset 14 .
  • the flange portion 15b is provided at one end (lower end) of the tubular portion 15a in the axial direction so as to be orthogonal to the axial direction.
  • the flange portion 15b is provided, for example, on the inner surface or the outer surface of a portion of the inner bag-constituting sheet material 41 that is arranged along the top gusset 14 of the body portion 11 .
  • the lower surface of the flange portion 15b is joined to the inner surface of the inner bag-constituting sheet material 41 at the top gusset 14, for example.
  • the present invention is not limited to this example, and the flange portion 15b may be directly joined to the inner film layer 23 of the sheet material 21 constituting the main body.
  • An opening at the tip of the cylindrical portion 15a is a spout 15c for discharging the contents from the storage area 17. As shown in FIG.
  • the cap portion 70 includes, for example, a mounting portion 71 which is a female-threaded cylindrical portion detachably screwed to the cylindrical portion 15a, a pump portion 72 fixed to the mounting portion 71, and a pump portion 72. and a head portion 73 held by the pump portion 72 so as to be able to move up and down with respect to the pump portion 72 .
  • the head portion 73 has, for example, a support cylinder portion 74 projecting upward from the pump portion 72 and a nozzle portion 75 horizontally projecting from the upper end portion of the head portion 73. is formed with a discharge port 76 for discharging contents.
  • a flow path (not shown) for contents in the cap portion 70 is arranged to vertically penetrate the spout 15 .
  • the deformation resistance of the sheet material container 100 against the force applied in the vertical direction is further improved by the first vertically extending portion 61a and the second vertically extending portion 61b. can be done. Therefore, even if the head portion 73 is pushed into the pump portion 72, deformation (crushing) of the sheet material container 100 can be suppressed.
  • the contents may be discharged from the discharge port 76 by pressing the pump part 72 in the horizontal direction.
  • the filling portion 60 formed in the front portion 20a and the filling portion 60 formed in the rear portion 20b are symmetrical in the front-rear direction.
  • the filling portion 60 formed on the first side surface portion 20c and the filling portion 60 formed on the second side surface portion 20d are symmetrical to each other. More specifically, the filling portion 60 extends vertically along the boundary between the front portion 20a and the second side portion 20d, in addition to the first vertically extending portion 61a and the second vertically extending portion 61b, for example.
  • the third vertically extending portion 61c and the fourth vertically extending portion 61d extend vertically in parallel with each other along the second side portion 16b, for example.
  • the fifth vertically extending portion 62a and the sixth vertically extending portion 62b extend vertically in parallel with each other along the third side portion 16c, for example.
  • the seventh vertically extending portion 62c and the eighth vertically extending portion 62d extend vertically in parallel with each other along the fourth side portion 16d, for example.
  • the sheet material container 100 includes a pair of vertically extending portions (first vertically extending portion 61a to fourth vertically extending portion 61d and a fourth vertically extending portion 61d) extending vertically in parallel with each other along corresponding side portions. 5 vertically extending portion 62a to 8th vertically extending portion 62d), the deformation resistance of the sheet material container 100 against the force applied in the vertical direction can be further improved. Therefore, even if the sheet material container 100 is subjected to impact due to dropping or the like, deformation (crushing) of the sheet material container 100 can be suppressed more reliably.
  • "parallel" does not necessarily have to be parallel. good.
  • the first vertically extending portion 61a and the third vertically extending portion 61c are arranged, for example, in the front portion 20a.
  • the second vertically extending portion 61b is arranged on the first side surface portion 20c
  • the fourth vertically extending portion 61d is arranged on the second side surface portion 20d.
  • the filling portion 60 (the second vertically extending portion 61b and the fourth vertically extending portion 61d) is arranged on each of the first side portion 20c and the second side portion 20d. Even if force is applied to the sheet material container 100 in the vertical direction, the sheet material container 100 can be prevented from being deformed (crushed) in the horizontal direction.
  • each of the front face portion 20a, the first side face portion 20c and the second side face portion 20d there are concave and convex portions (hereinafter, referred to as finger hook portions) where the container body 20 can be easily gripped by putting a finger thereon. Since the first vertically extending portion 61a to the fourth vertically extending portion 61d) can be secured, the gripping property of the sheet material container 100 can be improved.
  • the fifth vertically extending portion 62a and the seventh vertically extending portion 62c are arranged, for example, on the back portion 20b.
  • the sixth vertically extending portion 62b is arranged on the first side surface portion 20c, and the eighth vertically extending portion 62d is arranged on the second side surface portion 20d.
  • each of the front portion 20a, the rear portion 20b, the first side portion 20c, and the second side portion 20d is provided with projections and depressions (fifth up-down extension portion 62a to eighth up-down extension portion 62d) that serve as finger hooks. Therefore, regardless of the size of the user's palm, the user can put his or her finger on the finger rest. Therefore, the gripability of the sheet material container 100 can be further improved.
  • the upper ends of the third vertically extending portion 61c and the fourth vertically extending portion 61d are connected to the second side edge seal portion 47, the second front lower side edge seal portion 48b, and the second rear lower side edge seal portion. It is located above the intersection 47b of 49b.
  • the lower ends of the third vertically extending portion 61c and the fourth vertically extending portion 61d are the second side edge seal portion 47, the second front lower side edge seal portion 48b, and the second rear lower side edge seal portion 49b. is located below the intersection 47b of the .
  • the periphery of the intersection 47b is reinforced by each of the third vertically extending portion 61c and the fourth vertically extending portion 61d.
  • the third vertically extending portion 61c and the fourth vertically extending portion 61d can reduce the impact applied to the intersection 47b. Therefore, better structural strength of the sheet material container 100 can be achieved. More specifically, as an example, the upper ends of the first vertically extending portion 61a and the second vertically extending portion 61b are positioned above the lower end of the first side edge seal portion 46, The lower ends of the portion 61 a and the second vertically extending portion 61 b are located below the lower end of the first side edge seal portion 46 .
  • the upper ends of the third vertically extending portion 61 c and the fourth vertically extending portion 61 d are located above the lower end of the second side edge seal portion 47 . Further, the lower ends of the third vertically extending portion 61 c and the fourth vertically extending portion 61 d are positioned below the lower end of the second side edge seal portion 47 .
  • the upper ends of the fifth vertically extending portion 62a and the sixth vertically extending portion 62b are the first side edge seal portion 46, the first front lower side edge seal portion 48a, and the first rear lower side edge seal portion 49a. is located above the intersection 46b) with the .
  • the lower ends of the fifth vertically extending portion 62a and the sixth vertically extending portion 62b are located below the intersection 46b.
  • the upper ends of the seventh vertically extending portion 62c and the eighth vertically extending portion 62d are connected to the second side edge seal portion 47, the second front lower side edge seal portion 48b, and the second rear lower side edge seal portion. It is located above the intersection 47b of 49b.
  • the lower ends of the seventh vertically extending portion 62c and the eighth vertically extending portion 62d are located below the intersection 47b. Accordingly, the periphery of the intersections 46b and 47b is reinforced by each of the fifth vertically extending portions 62a to 62d and the eighth vertically extending portions 62d. Therefore, even if the sheet material container 100 is subjected to impact due to dropping or the like, the impact applied to the intersections 46b and 47b can be mitigated by the fifth vertically extending portions 62a to 62d and the eighth vertically extending portions 62d. can. Therefore, better structural strength of the sheet material container 100 can be achieved.
  • a crease 89a extending in the width direction is formed in the upper portion of the front portion 20a.
  • the upper ends of the first and second vertically extending portions 61a and 61b and the upper ends of the third and fourth vertically extending portions 61c and 61d are located above the fold line 89.
  • the vertical dimension of each of the first vertically extending portion 61a to the fourth vertically extending portion 61d can be sufficiently ensured, so that the structural strength of the sheet material container 100 can be further improved.
  • a crease 89b extending in the width direction is formed in the upper portion of the back portion 20b.
  • the upper ends of the fifth and sixth vertically extending portions 62a and 62b and the upper ends of the seventh and eighth vertically extending portions 62c and 62d are located above the fold line 89b. there is Thereby, the vertical dimension of each of the fifth vertically extending portion 62a to the eighth vertically extending portion 62d can be sufficiently ensured, so that the structural strength of the sheet material container 100 can be further improved.
  • the lower ends of the first and third vertically extending portions 61a and 61c reach the lower end of the front portion 20a.
  • the deformation resistance of the front portion 20a can be improved, so deformation of the container body 20 in the front-rear direction can be suppressed.
  • the lower ends of the fifth vertically extending portion 62a and the seventh vertically extending portion 62c preferably reach the lower end of the back surface portion 20b. Therefore, deformation of the container body 20 in the front-rear direction can be suppressed more reliably. By doing so, the deformation resistance of the back surface portion 20b can be improved, so that the deformation of the container body 20 in the front-rear direction can be suppressed more reliably.
  • the first vertically extending portion 61a and the third vertically extending portion 61c extend from the upper end to the lower end of the front portion 20a. By doing so, the deformation resistance of the front portion 20a can be further improved.
  • the fifth vertically extending portion 62a and the seventh vertically extending portion 62c extend from the upper end to the lower end of the back surface portion 20b. By doing so, the deformation resistance of the back surface portion 20b can be further improved.
  • the first vertically extending portion 61 a and the third vertically extending portion 61 c are preferably arranged directly above the ground surface 13 a of the bottom portion 13 .
  • the first front lower side edge seal portion 48a, the first rear lower side edge seal portion 49a and the first side edge seal portion 46 can be secured.
  • the impact applied to the intersection 46b with the can be alleviated.
  • the second vertically extending portion 61b and the fourth vertically extending portion 61d to the eighth vertically extending portion 62d are preferably arranged directly above the ground surface 13a of the bottom portion 13. As shown in FIG.
  • the first front lower side edge seal portion 48a, the first rear lower side edge seal portion 49a and the first side edge seal portion 46 can be secured. and the intersection point 47b with the second front lower side edge seal portion 48b, the second rear lower side edge seal portion 49b, and the second side edge seal portion 47, respectively.
  • “the first vertically extending portion 61a is disposed directly above the ground plane 13a” means that at least a portion of the first vertically extending portion 61a overlaps the ground plane 13a in plan view. are doing.
  • ⁇ the third vertically extending portion 61c (or the fourth vertically extending portion 61d to the eighth vertically extending portion 62d) are disposed immediately above the ground surface 13a'' means that the first vertically extending portion 61c It means that at least a part of the extending portion 61a (or the fourth vertically extending portion 61d to the eighth vertically extending portion 62d) overlaps the ground surface 13a.
  • the first vertically extending portion 61a extends from the upper left corner to the lower left corner of the front portion 20a
  • the third vertically extending portion 61c extends from the upper left corner to the lower left corner. , extending from the upper right corner to the lower right corner of the front portion 20a.
  • the second vertically extending portion 61b extends from the front and upper corners of the first side surface portion 20c to the front and lower corners. It extends from the front and upper corners of the two side faces 20d to the front and lower corners.
  • the fifth vertically extending portion 62a extends from the upper left corner to the lower left corner of the back surface portion 20b
  • the seventh vertically extending portion 62c extends from the back surface portion 20b. It extends from the upper right corner to the lower right corner of the portion 20b.
  • the sixth vertically extending portion 62b extends from the rear and upper corners of the first side surface portion 20c to the rear and lower corners
  • the eighth vertically extending portion 62d extends from the rear and upper corners to the rear and lower corners. , extending from the rear and upper corners of the second side face portion 20d to the rear and lower corners thereof.
  • the distance between the first vertically extending portion 61a and the third vertically extending portion 61b is greater than the distance in the horizontal direction between the first vertically extending portion 61a and the second vertically extending portion 61b. It is preferable that the separation distance in the left-right direction from the present portion 61c is larger. By doing so, the first vertically extending portion 61a and the second vertically extending portion 61b are arranged closer to each other. The neighborhood can be better reinforced. Similarly, the horizontal separation distance between the first vertical extension portion 61a and the third vertical extension portion 61c is greater than the horizontal separation distance between the third vertical extension portion 61c and the fourth vertical extension portion 61d.
  • a third vertically extending portion 61c and a fourth vertically extending portion 61d a fifth vertically extending portion 62a and a sixth vertically extending portion 62b, a seventh vertically extending portion 62c and an eighth vertically extending portion 62c, and Since the extension portions 62d are arranged closer to each other, the filling portion 60 can better reinforce the second side portion 16b to the fourth side portion 16d and their vicinity. .
  • the distance between the first vertically extending portion 61a and the fifth vertically extending portion 61b is greater than the distance between the first vertically extending portion 61a and the second vertically extending portion 61b in the horizontal direction. It is also preferable that the separation distance in the front-rear direction from the present portion 62a is larger. Also by doing so, the first vertically extending portion 61a and the second vertically extending portion 61b are arranged closer to each other. The neighborhood can be reinforced better.
  • the distance in the front-rear direction between the fourth vertically extending portion 61d and the eighth vertically extending portion 62d is greater than the distance in the left-right direction between the third vertically extending portion 61c and the fourth vertically extending portion 61d.
  • the distance between the sixth vertically extending portion 62b and the second vertically extending portion 61b is preferably larger than the distance in the left-right direction between the fifth vertically extending portion 62a and the sixth vertically extending portion 62b. It is also preferable that the separation distance in the front-rear direction is larger.
  • the distance between the eighth vertically extending portion 62d and the fourth vertically extending portion 61d in the front-rear direction is greater than the distance between the seventh vertically extending portion 62c and the eighth vertically extending portion 62d in the left-right direction. Larger is also preferred. By doing so, the third vertically extending portion 61c and the fourth vertically extending portion 61d, the third vertically extending portion 61c and the fourth vertically extending portion 61d, the third vertically extending portion 61c and the fourth vertically extending portion 61c, and the fourth vertically extending portion 61d. Since the upper and lower extending portions 61d are arranged closer to each other, the filling portion 60 can better reinforce the second side portion 16b to the fourth side portion 16d and their vicinity. can.
  • FIGS. It has a fourth protrusion 65d, a fifth protrusion 65e, a sixth protrusion 65f, a seventh protrusion 65g and an eighth protrusion 65h.
  • the first protruding portion 65a protrudes from the first vertically extending portion 61a toward the central portion in the width direction of the front portion 20a, for example, at the middle portion in the vertical direction of the front portion 20a.
  • the second protruding portion 65b protrudes from the second vertically extending portion 61b toward the central portion in the width direction of the first side surface portion 20c, for example, at the middle portion in the vertical direction of the first side surface portion 20c.
  • the third projecting portion 65c protrudes from the third vertically extending portion 61c toward the center portion in the width direction of the front portion 20a at the center portion in the vertical direction of the front portion 20a.
  • the fourth projecting portion 65d protrudes from the fourth vertically extending portion 61d toward the center portion in the width direction of the second side surface portion 20d at the center portion in the vertical direction of the second side surface portion 20d.
  • the fifth protruding portion 65e protrudes from the fifth vertically extending portion 62a toward the central portion in the width direction of the back portion 20b, for example, at the middle portion in the up-down direction of the back portion 20b.
  • the sixth protruding portion 65f protrudes, for example, from the sixth vertically extending portion 62b toward the central portion in the width direction of the first side surface portion 20c at the middle portion in the vertical direction of the first side surface portion 20c.
  • the seventh projecting portion 65g protrudes from the seventh vertically extending portion 62c toward the center portion in the width direction of the back portion 20b at the center portion in the up-down direction of the back portion 20b.
  • the eighth projecting portion 65h protrudes from the eighth vertically extending portion 62d toward the center portion of the second side surface portion 20d in the width direction at the center portion of the second side surface portion 20d in the vertical direction.
  • the container body 20 is reinforced by the filling portion 60 (the first projecting portion 65a to the eighth projecting portion 65h). Deformation (crushing) of the material container 100 can be suppressed. More specifically, in the case of the present embodiment, the first projecting portion 65a and the second projecting portion 65b can satisfactorily maintain the state in which the front portion 20a and the first side portion 20c are substantially perpendicular to each other. . Similarly, the third projecting portion 65c to the eighth projecting portion 65h allow the front portion 20a and the second side portion 20d to be substantially perpendicular to each other, and the rear portion 20b and the first side portion 20c to be perpendicular to each other.
  • the back surface portion 20b and the second side surface portion 20d are orthogonal to each other. That is, the front portion 20a and the rear portion 20b face each other in the front-rear direction so as to be substantially parallel to each other with the accommodation area 17 interposed therebetween, and the first side portion 20c and the second side portion 20d. can be maintained satisfactorily in a state in which they face each other in the left-right direction so as to be substantially parallel to each other with the accommodation area 17 interposed therebetween.
  • deformation (crushing) of the sheet material container 100 can be suppressed, the self-sustainability of the sheet material container 100 can be improved.
  • the “vertical middle portion of the front portion 20a” means, for example, the middle portion in the vertical direction is at least the portion between the upper end and the lower end of the front portion 20a (see H shown in FIG. 2). is.
  • the “middle portion in the vertical direction of the front portion 20a” is, for example, the center portion of the front portion 20a, and the center portion is the front portion 20a divided into three equal parts in the height direction (see FIG. 2). 1/3H) is the middle area.
  • the “middle portion in the vertical direction of the back surface portion 20b” is, for example, at least a portion between the upper end and the lower end of the back surface portion 20b.
  • the “middle portion in the vertical direction of the back surface portion 20b” is, for example, the center portion of the back surface portion 20b, and the center portion is the middle portion of the back surface portion 20b divided into three equal parts in the height direction. area.
  • each of the first projecting portion 65a, the third projecting portion 65c, the fifth projecting portion 65e, and the seventh projecting portion 65g extends vertically from the front portion 20a (or the rear portion 20b) by about 2 or the like. It preferably extends including the dividing position (see 1/2H shown in FIG. 2).
  • the central portion of the front portion 20a in the width direction is, for example, the central portion of the front portion 20a in the left-right direction, and the middle region of the three equal parts of the front portion 20a in the left-right direction. means.
  • the “central portion of the back portion 20b in the width direction” is, for example, the center portion of the back portion 20b in the left-right direction, and means the middle region of the three equal parts of the back portion 20b in the left-right direction. ing.
  • the central portion in the width direction of the first side surface portion 20c is, for example, the central portion of the first side surface portion 20c in the front-rear direction, and the first side surface portion 20c is divided into three equal parts in the front-rear direction. It means the area in the middle of my house.
  • the “central portion in the width direction of the second side surface portion 20d” is, for example, the central portion of the second side surface portion 20d in the front-rear direction, and is one of three equal parts of the second side surface portion 20d in the front-rear direction. means the middle area.
  • the thickness of each of the first vertically extending portion 61a and the third vertically extending portion 61c is, for example, The width gradually narrows toward the middle portion.
  • the thickness of each of the fifth vertically extending portion 62a and the seventh vertically extending portion 62c is, for example, at an intermediate portion in the vertical direction. It gradually narrows towards Further, as shown in FIG.
  • each of the second vertically extending portion 61b and the fourth vertically extending portion 61d is, for example, toward the intermediate portion in the vertical direction. gradually becomes thicker.
  • the thickness of each of the fifth vertically extending portion 62a and the eighth vertically extending portion 62d is, for example, in the middle portion in the vertical direction. It gradually becomes thicker towards.
  • the filling portion 60 includes an annular filling portion 68 formed in an annular shape along the periphery of the ground contact surface 13a, a top gusset filling portion 66 formed in an annular shape along the periphery of the top gusset 14, and a first A first upper horizontally extending portion 63a connecting the upper end of the vertically extending portion 61a and the upper end of the third vertically extending portion 61c, the lower end of the first vertically extending portion 61a, and the third vertically extending portion A first lower horizontally extending portion 64a connecting the lower end of 61c and a second upper horizontal extending portion 64a connecting the upper end of the fifth vertically extending portion 62a and the upper end of the seventh vertically extending portion 62c.
  • the first upper horizontally extending portion 63a is arranged at the upper end portion of the front portion 20a, and extends substantially horizontally left and right, for example.
  • the first lower horizontally extending portion 64a is arranged at the lower end portion of the front portion 20a, and extends substantially horizontally left and right, for example.
  • the second upper horizontally extending portion 63b is arranged at the upper end portion of the back surface portion 20b, and extends substantially horizontally left and right, for example.
  • the second lower horizontally extending portion 64b is arranged at the lower end portion of the back surface portion 20b, and extends substantially horizontally left and right, for example. Since the sheet material container 100 includes the filling portion 60 having such a structure, sufficient structural strength is ensured over almost the entire container body 20 .
  • the sheet material container 100 may include a plurality of filling portions 60 that are independent of each other. More specifically, the lower end of the first vertically extending portion 61a and the lower end of the third vertically extending portion 61c communicate with the annular filling portion 68 (in this embodiment, the front edge of the annular filling portion 68). are doing. The upper end of the first vertically extending portion 61a and the upper end of the third vertically extending portion 61c communicate with the top gusset filling portion 66 (the front edge of the top gusset filling portion 66 in this embodiment). .
  • the lower end of the fifth vertically extending portion 62a and the lower end of the seventh vertically extending portion 62c communicate with the annular filling portion 68 (in the case of this embodiment, the trailing edge of the annular filling portion 68).
  • the upper end of the fifth vertically extending portion 62a and the upper end of the seventh vertically extending portion 62c communicate with the top gusset filling portion 66 (in this embodiment, the rear edge of the top gusset filling portion 66).
  • the upper end portion of the first vertical extension portion 61a and the upper end portion of the second vertical extension portion 61b communicate with each other, and the lower end portion of the first vertical extension portion 61a and the second vertical extension portion 61b communicate with each other.
  • first vertically extending portion 61a and the second vertically extending portion 61b communicate with each other at the upper end, the central portion in the vertical direction, and the lower end. More specifically, the first vertically extending portion 61a and the second vertically extending portion 61b communicate with each other at the upper end portion, the center portion in the vertical direction, and the lower end portion of the first side portion 16a. Similarly, the third vertically extending portion 61c and the fourth vertically extending portion 61d communicate with each other at the upper end, the central portion in the vertical direction, and the lower end.
  • the third vertically extending portion 61c and the fourth vertically extending portion 61d communicate with each other at the upper end portion, the center portion in the vertical direction, and the lower end portion of the second side portion 16b.
  • the fifth vertically extending portion 62a and the sixth vertically extending portion 62b communicate with each other at the upper end portion, the central portion in the vertical direction, and the lower end portion. More specifically, the fifth vertically extending portion 62a and the sixth vertically extending portion 62b communicate with each other at the upper end portion, the center portion in the vertical direction, and the lower end portion of the third side portion 16c.
  • the seventh vertically extending portion 62c and the eighth vertically extending portion 62d communicate with each other at the upper end portion, the central portion in the vertical direction, and the lower end portion. More specifically, the seventh vertically extending portion 62c and the eighth vertically extending portion 62d communicate with each other at the upper end portion, the center portion in the vertical direction, and the lower end portion of the fourth side portion 16d.
  • the first projecting portion 65a and the third projecting portion 65c communicate directly with each other, and the assembly of the first projecting portion 65a and the third projecting portion 65c extends in the width direction of the front portion 20a. are doing. Accordingly, the filling portion 60 can further improve the deformation resistance of the front portion 20a.
  • the fifth projecting portion 65e and the seventh projecting portion 65g are in direct communication with each other, and the assembly of the fifth projecting portion 65e and the seventh projecting portion 65g extends in the lateral width direction of the back surface portion 20b. exist. Accordingly, the filling portion 60 can further improve the deformation resistance of the back portion 20b.
  • the thickness (vertical dimension in the case of the present embodiment) of the assembly of the first projecting portion 65a and the third projecting portion 65c is approximately It is constant.
  • the thickness (vertical dimension in the case of this embodiment) of the assembly of the fifth projecting portion 65e and the seventh projecting portion 65g is, for example, substantially constant regardless of the position in the horizontal direction.
  • the first side edge seal portion 46, the second side edge seal portion 47, the first front lower side edge seal portion 48a, the first rear lower side edge seal portion 49a, the second front lower side edge seal portion In a state in which the side edge seal portion 48b and the second front lower side edge seal portion 48b are peeled off and the main body constituting sheet material 21 is spread flat (see FIG. 8), the first vertically extending portion 61a and the , and a portion of the annular filling portion 68 are arranged linearly with each other, and the third vertically extending portion 61c and another portion of the annular filling portion 68 are arranged linearly with each other.
  • each of the first vertically extending portion 61a and the third vertically extending portion 61c stands substantially vertically from the annular filling portion 68 and the ground surface 13a.
  • the deformation resistance of 100 can be further improved.
  • the fifth vertically extending portion 62a and a portion of the annular filling portion 68 are arranged linearly with each other, and the seventh vertically extending portion 62a and a portion of the annular filling portion 68
  • the extending portion 62c and another portion of the annular filling portion 68 are arranged linearly with each other.
  • each of the fifth vertically extending portion 62a and the seventh vertically extending portion 62c stands substantially vertically from the annular filling portion 68 and the ground surface 13a.
  • 100 deformation resistance can be improved.
  • "arranged in a straight line” means one straight line extending vertically (two-dot chain lines 101 and 102 shown in FIG. ) are arranged so as to fit inside the formation region of the corresponding filling portion 60 .
  • the first vertically extending portion 61a and a portion of the ground plane 13a are arranged linearly with each other, and the third vertically extending portion 61c and another portion of the ground plane 13a are arranged linearly with each other.
  • the fifth vertically extending portion 62a and a portion of the ground plane 13a are arranged linearly with each other, and the seventh vertically extending portion 62c and another portion of the ground plane 13a are arranged linearly with each other. placed. More preferably, a portion of the top gusset filling portion 66, the first vertical extension portion 61a, a portion of the ground contact surface 13a, and the fifth vertical extension portion 62a are arranged linearly with each other. Similarly, a portion of the top gusset filling portion 66, the third vertically extending portion 61c, a portion of the ground contact surface 13a, and the seventh vertically extending portion 62c are arranged linearly with each other. Further, in the front portion 20a, the first vertically extending portion 61a and the third vertically extending portion 61c extend substantially parallel to each other. The extending portions 62c extend substantially parallel to each other.
  • the container main body 20 has an outside air introducing portion 98 that introduces outside air between the inner surface of the container main body 20 and the outer surface of the inner bag 40 .
  • the outside air introduction part 98 is, for example, a through hole penetrating the outer film layer 22 and the inner film layer 23 .
  • the intake of air through the outside air introduction part 98 is smooth, so that a large amount of contents can be stored in a short time. Even when a substance is discharged, deformation (crushing) of the container body 20 can be suppressed.
  • the outside air introduction part 98 is formed in the central part of the bottom part 13 .
  • the main body-constituting sheet material 21 includes an outer film layer 22 forming the outer surface side of the container main body 20 and an inner film layer 23 forming the inner surface side of the container main body 20. It is constructed by stacking and bonding. That is, as an example, in the case of this embodiment, the body-constituting sheet material 21 is composed of two film layers, an outer film layer 22 and an inner film layer 23 . However, the present invention is not limited to this example, and the body-constituting sheet material 21 may have film layers other than the outer film layer 22 and the inner film layer 23 . In this embodiment, the outer film layer 22 and the inner film layer 23 are formed in the same shape.
  • the present invention is not limited to this example, and the outer film layer 22 and the inner film layer 23 may have different shapes.
  • the outer film layer 22 preferably has a shape larger than the inner film layer 23 .
  • the outer film layer 22 and the inner film layer 23 are formed with insertion holes through which the tubular portion 15a of the spout 15 is inserted.
  • a non-bonded portion 24 (FIG. 8) is formed in the body-constituting sheet material 21 where the outer film layer 22 and the inner film layer 23 are partially non-bonded.
  • the outer film layer 22 and the inner film layer 23 are partially non-bonded on the facing surface of the other.
  • the non-bonding treatment can be easily formed by applying a non-bonding agent (so-called desizing agent) to create a desizing state. Any paste killer can be used as long as it can suppress bonding between the outer film layer 22 and the inner film layer 23 .
  • the desizing agent for example, printing inks, medium inks, desizing inks, and the like used in offset printing, flexographic printing, and letterpress printing (relief printing) can be preferably used.
  • thermosetting and UV-curable inks can be preferably used.
  • the non-joining portion 24 is the range to which the non-joining treatment has been applied.
  • a filling portion 60 in which the filler is enclosed is formed.
  • the filler can be fluid (gas or liquid), solid (eg, powder, resin pellets, etc.) or semi-solid (eg, foamed material, etc.), preferably gas such as air.
  • the filling portion 60 is not necessarily formed in the entire non-joint portion 24 , and may be formed in a part of the plurality of non-joint portions 24 .
  • FIG. 6 in each of the outer film layer 22 and the inner film layer 23 , the regions that are joined together to form the main body seal portion 26 are hatched upward to the right for the sake of convenience. 7 and 8, in the body-constituting sheet material 21, the outer film layer 22 and the inner film layer 23 are bonded to each other to define the non-bonded portion 24, that is, the formation region of the body seal portion 26. are hatched upward to the right for convenience. Furthermore, in FIG.
  • a seal boundary line 21c which is a boundary line between the seal area of the peripheral edge portion of the main body constituting sheet material 21 and the other area, is indicated by a chain double-dashed line.
  • the outer film layer 22 and the inner film layer 23 are joined to each other during bag making, and the inner film layer The layer 23 and the inner bag-constituting sheet material 41 are joined together.
  • heat sealing, ultrasonic sealing, joining with an adhesive, or the like can be used as a technique for joining the outer film layer 22 and the inner film layer 23, for example, heat sealing, ultrasonic sealing, joining with an adhesive, or the like can be used.
  • each of the outer film layer 22 and the inner film layer 23 has a layer structure including a plurality of resin layers.
  • the inner bag-constituting sheet material 41 also has a layered structure including a plurality of resin layers.
  • the main body-constituting sheet material 21 includes a resin layer of any one of polyethylene, polypropylene, polyester, and polyamide.
  • the material of the resin layer constituting the outer film layer 22 and the inner film layer 23 of the main body constituting sheet material 21 is not particularly limited, but for example, high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE) ), linear low density polyethylene (LLDPE), ultra low density polyethylene (ULDPE), polyethylene-based materials such as ethylene-vinyl alcohol copolymer (EVOH), or oriented polypropylene (OPP), unoriented polypropylene (CPP), Polypropylene materials such as isotactic PP, syndiotactic PP, atactic PP, random PP, block PP, or polyethylene terephthalate (PET), amorphous polyethylene terephthalate (amorphous PET), polybutylene terephthalate (PBT), Polyester-based materials such as polyethylene ethylene
  • the outer film layer 22 has, for example, a four-layer structure formed by laminating four resin layers, a first layer, a second layer, a third layer and a fourth layer, in this order.
  • the first layer constitutes the outer surface of the container body 20 .
  • the first layer is made of, for example, polyethylene terephthalate (PET) or oriented nylon (ONy).
  • PET polyethylene terephthalate
  • ONy oriented nylon
  • the primary function of the first layer is to provide the container body 20 with glossiness and printability and to ensure the rigidity of the container body 20 .
  • the second layer is, for example, a layer of transparent vapor-deposited PET made of polyethylene terephthalate in which silica and/or alumina is vapor-deposited on the surface of the second layer on the first layer side.
  • a main function of the second layer is to provide gas barrier properties to the container body 20 .
  • the third layer is made of stretched nylon, for example.
  • a main function of the third layer is to ensure pinhole resistance of the container body 20 .
  • the fourth layer is made of, for example, linear low density polyethylene (LLDPE).
  • LLDPE linear low density polyethylene
  • a fifth layer made of, for example, linear low density polyethylene (LLDPE) is added.
  • the fifth layer is a layer adjacent to the first layer and constitutes the surface of the inner film layer 23 opposite to the fourth layer.
  • a main function of the fifth layer is to ensure heat sealability with the outer film layer 22 .
  • a main function of the fourth layer of the inner film layer 23 is to ensure heat sealability with the inner bag-constituting sheet material 41 .
  • the inner bag forming sheet material 41 forming the inner bag 40 has, for example, a three-layer structure formed by laminating a first layer, a second layer and a third layer in this order.
  • the first layer is made of, for example, linear low-density polyethylene.
  • a main function of the first layer is to ensure heat sealability with the main body constituting sheet material 21 (heat sealability with the inner film layer 23).
  • the second layer is, for example, a layer of transparent vapor-deposited stretched nylon made of stretched nylon in which silica and/or alumina is vapor-deposited on the surface of the second layer on the first layer side. Main functions of the second layer include ensuring gas barrier properties and pinhole resistance.
  • the third layer is made of, for example, linear low-density polyethylene. A main function of the third layer is to secure the heat-sealing property between the inner bag-constituting sheet materials 41 .
  • a plurality of film layers (the outer film layer 22 and the inner film layer 23 in the case of the present embodiment) of the main body-constituting sheet material 21 are made of, for example, a common resin material, and the common resin material is It is preferred that the molecular backbones of the main chain and the side chains in the chemical structure of the molecule are common to each other. By doing so, the physical properties and quality of the recycled material obtained from the container body 20 can be improved.
  • the common resin material is, for example, a polyethylene-based resin material
  • the polyethylene-based resin material includes high-density polyethylene (HDPE), medium-density polyethylene (MDPE), low-density polyethylene (LDPE), and linear low-density polyethylene. (LLDPE), ultra-low density polyethylene (ULDPE), and ethylene-vinyl alcohol copolymer (EVOH).
  • HDPE high-density polyethylene
  • MDPE medium-density polyethylene
  • LDPE low-density polyethylene
  • LLDPE linear low-density polyethylene
  • LLDPE linear low-density polyethylene
  • ULDPE ultra-low density polyethylene
  • EVOH ethylene-vinyl alcohol copolymer
  • the outer film layer 22, the inner film layer 23, and the inner bag-constituting sheet material 41 are all made of olefin-based, particularly polyethylene-based resin layers.
  • the outer film layer 22 in this case consists of linear low-density polyethylene (LLDPE), ethylene-vinyl alcohol copolymer (EVOH), and linear low-density polyethylene (LLDPE) in order from the outer surface of the container. It has layers.
  • the inner film layer 23 and the inner bag-constituting sheet material 41 have the same layer structure as the outer film layer 22, respectively.
  • the outer film layer 22 is composed of biaxially oriented polyethylene (BOPE), linear low density polyethylene (LLDPE), ethylene-vinyl alcohol copolymer (EVOH), and linear low It includes four layers of density polyethylene (LLDPE).
  • the inner film layer 23 and the inner bag-constituting sheet material 41 are made of linear low-density polyethylene (LLDPE), ethylene-vinyl alcohol copolymer (EVOH), and linear low-density polyethylene (LLDPE), respectively. It has three layers.
  • the outer film layer 22 is provided with two layers of biaxially oriented polyethylene (BOPE) and linear low density polyethylene (LLDPE) in order from the outer surface of the container, and the outermost layer is a coated gas barrier layer.
  • a coated gas barrier layer is a coating layer formed by applying a material having gas barrier properties. Not included. That is, the coating type gas barrier layer is limited to a coating layer formed by coating a material having gas barrier properties. Materials having gas barrier properties are not particularly limited as long as they are materials capable of forming a coating layer by coating.
  • Examples include polyvinylidene chloride, ethylene-vinyl alcohol copolymer (EVOH), organic vinyl alcohol copolymer resin (EVOH) type) / inorganic (plate-like filler) nanocomposite type material, organic (vinyl acetate (VA) type) / inorganic (siloxane polymer) hybrid type material, polyvinyl alcohol (PVOH), polyvinyl alcohol ( PVOH) with acrylic acid and methyl methacrylate, hydroxypolyurethanes, etc. are indicated as suitable. In particular, those having high coatability (adhesion when coated) to the substrate layer and/or those that can be removed from the substrate layer by treatment with alkaline water, warm water, organic solvents, etc. are used. is more preferred.
  • the inner film layer 23 is provided with two layers of linear low-density polyethylene (LLDPE) and high-density polyethylene (HDPE) in order from the outer surface of the container, and the innermost layer is the above-mentioned coating type gas barrier. It is mentioned that it has a layer.
  • the inner bag-constituting sheet material 41 is provided with two layers of high-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE) in order from the outer surface of the container, and the outermost layer is coated with the above-mentioned coating. It is mentioned that it has a type
  • the outer film layer 22 is provided with two layers of high-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE) in order from the outer surface of the container, and the intermediate layer is the above-mentioned coated gas barrier layer. It is mentioned that it has.
  • the inner film layer 23 is provided with two layers of linear low-density polyethylene (LLDPE) and high-density polyethylene (HDPE) in order from the outer surface of the container, and the above coating type gas barrier is used as an intermediate layer. It is mentioned that it has a layer.
  • the inner bag-constituting sheet material 41 has the same layer structure as the outer film layer 22 .
  • the layer structure of the outer film layer 22 and the inner film layer 23 is not limited to the above examples, and the materials and number of layers constituting the outer film layer 22 and the inner film layer 23 are limited to the above examples. do not have.
  • the layer structure of the inner bag-constituting sheet material 41 is not limited to the above example.
  • the inner bag-constituting sheet material 41 is laminated on the main body-constituting sheet material 21, and as shown in FIG.
  • the outer film layer 22 and the inner film layer 23 are joined to each other, and the outer film layer 22 and inner film layer 23 are joined to each other.
  • the container-constituting sheet material 51 is constituted by the main body-constituting sheet material 21 and the inner bag-constituting sheet material 41 .
  • the sealing portion of the peripheral portion of the container-constituting sheet material 51 is referred to as a peripheral sealing portion 52 .
  • the peripheral edge sealing portion 52 is a sealing portion between the peripheral edge portion of the inner film layer 23 and the peripheral edge portion of the inner bag-constituting sheet material 41 (hereinafter referred to as an inner/outer sealing portion 43), and a sealing portion between the peripheral edge portion of the outer film layer 22 and the inner film layer 23. and a sealing portion with the peripheral portion (hereinafter referred to as main body peripheral edge sealing portion 28).
  • a top gusset peripheral seal portion 45 is formed in one portion of the formation area of the main body peripheral edge seal portion 28, and a first side edge seal portion 46 and a second side edge seal portion 47 are formed in the other portion.
  • the sheet material container 100 has the peripheral edge seal portion 52 in which the peripheral edge portions of one or more sheet materials are joined to each other. It includes a first side edge seal portion 46 and a second side edge seal portion 47 extending therealong.
  • the region where the peripheral seal portion 52 is formed is hatched upward to the left.
  • FIG. 8 in the region where the forming region of the peripheral seal portion 52 and the forming region of the main body seal portion 26 overlap, leftwardly rising hatching and rightwardly rising hatching overlap.
  • heat sealing, ultrasonic sealing, bonding with an adhesive, or the like can be used as an example.
  • the body constituting sheet material 21 includes a front side constituting sheet portion 31 constituting the front side of the body portion 11, a back side constituting sheet portion 32 constituting the back side of the body portion 11, and a bottom portion 13. , a top gusset-constituting sheet portion 34 that constitutes the top gusset 14 , and a tubular extending portion 25 .
  • the extending portion 25 extends outward from the rear-side constituent sheet portion 32, for example.
  • the top gusset-constituting sheet portion 34 is formed with an insertion hole 21a through which the tubular portion 15a of the spout 15 is inserted.
  • the non-joint portion 24 is formed in a shape corresponding to the shape of the filling portion 60 of the sheet material container 100 .
  • a portion that becomes the top gusset filling portion 66 is formed in a circular shape surrounding the insertion hole 21a.
  • the main body peripheral edge seal part 28 in addition to the main body peripheral edge seal part 28, includes a plurality of (for example, four) main body seal parts 26 arranged inside the main body peripheral edge seal part 28. and a plurality of (e.g., eight) side-shaped portion-constituting seal portions 27 arranged between the main body peripheral edge seal portion 28 and the inner peripheral side main body seal portion 26a. .
  • Each inner peripheral side main body seal portion 26a is formed, for example, in a substantially rectangular annular shape when viewed from the front. As shown in FIGS. 2, 8, etc., two inner peripheral main body seal portions 26a are arranged on the front portion 20a. The two inner peripheral side main body seal portions 26a are arranged vertically, for example. More specifically, when viewed from the front, the upper inner peripheral main body seal portion 26a has, for example, a substantially trapezoidal shape in which the length of the lower base (lower edge) is greater than the length of the upper base (upper edge).
  • the lower inner peripheral side main body seal portion 26a has, for example, a substantially trapezoidal shape in which the length dimension of the upper base (upper edge) is larger than the length dimension of the lower base (lower edge) when viewed from the front. A gap is formed between the lower edge of the inner peripheral main body seal portion 26a on the upper side and the upper edge of the inner peripheral main body seal portion 26a on the lower side. It's becoming The assembly of the first protruding portion 65a and the third protruding portion 65c is defined by the lower edge of the inner peripheral main body seal portion 26a on the upper side and the upper edge of the inner peripheral main body seal portion 26a on the lower side. It is Similarly, as shown in FIG.
  • each inner peripheral side main body seal portion 26a is arranged vertically in the back portion 20b.
  • the upper inner peripheral main body seal portion 26a has, for example, a substantially trapezoidal shape in which the length of the lower base (lower edge) is greater than the length of the upper base (upper edge).
  • the inner peripheral body seal portion 26a on the side has, for example, a substantially trapezoidal shape in which the length of the upper base (upper edge) is larger than the length of the lower base (lower edge).
  • the assembly of the fifth projecting portion 65e and the seventh projecting portion 65g is defined by the lower edge of the upper inner peripheral main body seal portion 26a and the upper edge of the lower inner peripheral main body seal portion 26a.
  • each inner circumference side main body seal portion 26a may have a substantially square shape when viewed from the front.
  • the side-shaped portion-constituting sealing portions 27 are formed, for example, in the main body-constituting sheet material 21, two each of the portions corresponding to the first side-shaped portion 16a to the fourth side-shaped portion 16d. As shown in FIG. 5, each side-shaped portion-constituting seal portion 27 is formed, for example, in a generally annular shape with a narrow width elongated in the vertical direction. More specifically, in the state in which the main body constituting sheet material 21 is unfolded, the side-shaped portion-constituting seal portions 27 of the first side-shaped portion 16a and the third side-shaped portion 16c are substantially convex to the left.
  • the side-shaped portion-constituting seal portion 27 of each of the second side-shaped portion 16b and the fourth side-shaped portion 16d is formed in a substantially trapezoidal shape that protrudes toward the right side.
  • Each side-shaped portion-constituting seal portion 27 is arranged, for example, along the boundary line between the corresponding planar portions.
  • the non-filling portions 67 of the first side portion 16a to the fourth side portion 16d are formed, for example, by forming areas of the side portion forming seal portions 27 formed in the corresponding side portions and the corresponding side portion forming seal portions. and a closed region defined by the portion 27 .
  • portions of the first to fourth side portions 16a to 16d other than the non-filling portion 67 are divided into corresponding two vertically extending portions (first vertically extending portion 61a to eighth vertically extending portion 62d). It is a point of communication between them. More specifically, each side-shaped portion forming seal portion 27 is formed so as to avoid both end portions in the longitudinal direction of the corresponding side-shaped portion. Also, the two side-shaped portion-constituting seal portions 27 corresponding to the first side-shaped portion 16a to the fourth side-shaped portion 16d are arranged slightly apart from each other, for example, in the middle portion in the vertical direction.
  • the corresponding two vertically extending portions of the first to fourth side portions 16a to 16d communicate with each other at the upper end, the lower end and the intermediate portion of the side portions.
  • the non-filling portions 67 of the first side portion 16a to the fourth side portion 16d are arranged at the boundaries between the corresponding two vertically extending portions.
  • Each non-filling portion 67 has, for example, a concave surface that is more concave inward than each of the corresponding two vertically extending portions.
  • a portion of the main body seal portion 26 is arranged in the center portion in the vertical direction of the second vertically extending portion 61b.
  • the amount of leftward expansion of the second vertically extending portion 61b and, by extension, the first side surface portion 20c can be suppressed. Therefore, since the first side surface portion 20c can be formed in a shape closer to a plane, the container body 20 can be more reliably formed into a substantially rectangular parallelepiped shape (polygonal prism shape).
  • a portion of the main body seal portion 26 is arranged in the vertical central portion of the third vertical extension portion 61c, and the main body seal portion 26 is arranged in the vertical central portion of the sixth vertical extension portion 62b.
  • a portion of the main body seal portion 26 is arranged in the central portion in the vertical direction of the eighth vertically extending portion 62d. As a result, it is possible to suppress the amount of leftward expansion of the first side surface portion 20c and the amount of rightward expansion of the second side surface portion 20d.
  • Each of the side portions 20d can be formed in a shape closer to a plane. Therefore, the container body 20 can be more reliably formed into a substantially rectangular parallelepiped shape (polygonal prism shape). More specifically, the body seal portion 26 includes a plurality of (eg, four) horizontal seal portions 26b extending in the left-right direction.
  • Each of the second vertically extending portion 61b, the sixth vertically extending portion 62b, the third vertically extending portion 61c, and the eighth vertically extending portion 62d has a horizontal seal portion 26b at its center in the vertical direction. are placed.
  • Each horizontal seal portion 26b is formed, for example, in an annular shape elongated in the front-rear direction.
  • a non-filling portion 67 is formed inside the horizontal seal portion 26b.
  • a long non-filling portion 67 is arranged in the front-rear direction.
  • the inner bag-constituting sheet material 41 is formed in the same shape as the portion of the main body-constituting sheet material 21 excluding the extending portion 25 .
  • the seal boundary line 41a of the inner bag-constituting sheet material 41 is indicated by a chain double-dashed line for convenience.
  • the seal boundary line 41a is a boundary line between a region where the inner bag-constituting sheet material 41 is joined (sealed) to the main body-constituting sheet material 21 and another region of the inner bag-constituting sheet material 41, and also the container-constituting sheet material 51.
  • seal boundary line 41a and the position of the seal boundary line 21c correspond to each other (overlap each other).
  • An insertion hole 41b through which the cylindrical portion 15a of the spout 15 is inserted is formed in a portion of the inner bag-constituting sheet material 41 that overlaps the top gusset-constituting sheet portion 34.
  • the flange portion 15b of the spout 15 is joined, for example, to the inner surface of the portion of the inner bag-constituting sheet material 41 that overlaps the top gusset-constituting sheet portion 34 .
  • the cylindrical portion 15a protrudes through the insertion hole 41b of the inner bag-constituting sheet material 41 and the insertion hole 21a of the top gusset-constituting sheet portion 34 to the outer surface side of these sheets.
  • the container-constituting sheet material 51 is folded along the folding lines 81, 82 and 84 shown in FIG.
  • the container-constituting sheet material 51 is formed into a bag-like double structure by joining the peripheral edge portions (peripheral sealing portion 52) of 51 (the inner bag-constituting sheet materials 41) to each other. Further, the container-constituting sheet material 51 is mountain-folded along the folding lines 83 to form folds 98a, and the container-constituting sheet material 51 is mountain-folded along the folding lines 83 to form folds 98b.
  • the valley fold is a way of folding convexly toward the back side in FIG.
  • the mountain fold is a way of folding convexly toward the front side in FIG. That is, by joining the edges of the inner bag-constituting sheet material 41 to form the inner bag sealing portion 42 (see FIG. 1), the inner bag 40 is formed by the inner bag-constituting sheet material 41 and the inner bag 40 is formed. A bag-shaped container body 20 covering the bag 40 is formed.
  • a technique for joining the inner bag-constituting sheet materials 41 for example, heat sealing, ultrasonic sealing, joining with an adhesive, or the like can be used.
  • the body peripheral edge seal portion 28, the inner bag seal portion 42, and the inner/outer seal portion 43 are arranged at positions corresponding to each other (positions overlapping each other).
  • each of the top gusset peripheral edge seal portion 45, the first side edge seal portion 46, and the second side edge seal portion 47 is formed by the main body peripheral edge seal portion 28, the inner bag seal portion 42, and the inner and outer seal portions. 43.
  • the present invention is not limited to this example. good.
  • a portion of the front side constituting sheet portion 31 closer to the top gusset constituting sheet portion 34 than the folding line 85 is a first overlapping portion 31c.
  • the first overlapping portion 31c is arranged to overlap one half of the top gusset-constituting sheet portion 34 in a state before the non-joint portion 24 is filled with the filler.
  • a portion of the rear surface-side sheet portion 32 located farther from the bottom sheet portion 33 than the folding line 86 is a second overlapping portion 32c.
  • the second overlapping portion 32c is arranged to overlap the other half of the top gusset-constituting sheet portion 34 in a state before the non-joint portion 24 is filled with the filler.
  • the container-constituting sheet material 51 is formed into a double bag shape, and the sheet material container 100 (before filling with the filler) is obtained.
  • the filling material is injected into the non-joint portion 24 from the injection port 25a formed in the extension portion 25, and then the non-joint portion 24 is sealed at the base end portion of the extension portion 25. do.
  • the filler is enclosed in the non-joint portion 24 (filling portion 60).
  • the pressure inside the filling part 60 is not particularly limited, it is preferably higher than the atmospheric pressure, and can be, for example, 10 kPa or more and 500 kPa or less (gauge pressure).
  • the extending portion 25 is cut off.
  • the sheet material container 100 in which the filling material is enclosed in the filling portion 60 is obtained.
  • the extending portion 25 may remain even in the state of the sheet material container 100 in which the filler is enclosed.
  • the sheet material container 100 After the sheet material container 100 is manufactured, the contents are filled in the containing area 17 through the cylindrical part 15a of the spout 15, and then the contents are enclosed in the containing area 17 by attaching the cap part 70 to the spout 15. A sheet material container 100 is obtained.
  • the thickness of the portion where the first vertically extending portion 61a and the second vertically extending portion 61b communicate with each other at the central portion in the vertical direction is thinner than the thickness of the first protruding portion 65a. preferable. This makes it easier for the filling portion 60 to bend at a portion corresponding to the boundary portion (first side portion 16a) between the front portion 20a and the first side portion 20c.
  • the first vertically extending portion 61a and the second vertically extending portion 61b are bent at their boundary portion (the non-filling portion 67 of the first side portion 16a). , the front portion 20a and the first side portion 20c cross each other.
  • the shape in which the front portion 20a and the first side portion 20c are substantially perpendicular to each other can be realized more reliably. More specifically, since the filling portion 60 is easily bent at the portion corresponding to the first side portion 16a, the first vertical extension is caused by being pulled by the tensile force generated when the filling portion 60 expands.
  • the body-constituting sheet material 21 is bent at the boundary portion between the portion 61a and the second vertically extending portion 61b, that is, the non-filling portion 67. As shown in FIG. Moreover, in the process, the non-filling portion 67 is deformed into an inwardly concave shape.
  • the thickness of the portion where the third vertically extending portion 61c and the fourth vertically extending portion 61d communicate with each other at the central portion in the vertical direction is thinner than the thickness of the third projecting portion 65c.
  • the thickness of the portion where the fifth vertically extending portion 62a and the sixth vertically extending portion 62b communicate with each other at the central portion in the vertical direction is preferably thinner than the thickness of the fifth projecting portion 65e.
  • the thickness of the portion where the seventh vertically extending portion 62c and the eighth vertically extending portion 62d communicate with each other at the central portion in the vertical direction is preferably thinner than the thickness of the fifth projecting portion 65e.
  • the filling portion 60 can be easily bent at the portions corresponding to the second side-shaped portion 16b to the fourth side-shaped portion 16d.
  • the filling portion 60 bends at the boundaries between the planar portions (the non-filling portions 67 of the second side portion 16b to the fourth side portion 16d). Therefore, the container body 20 can be more reliably formed into a substantially rectangular parallelepiped shape in which adjacent surfaces are substantially perpendicular to each other.
  • FIG. 9 ⁇ Modified Example of First Embodiment>
  • FIG. 9 The sheet material container 100 according to the present embodiment differs from the sheet material container 100 according to the first embodiment in the points described below, and the other points are the sheet material container 100 according to the first embodiment. It is constructed in the same manner as the material container 100 .
  • the filling portion 60 includes a first projecting portion 65a and a third projecting portion 65c formed on the front portion 20a and a fifth projecting portion 65c formed on the rear portion 20b. It does not have the projecting portion 65e and the seventh projecting portion 65g. Even with such a configuration, since the filling portion 60 has the first vertically extending portion 61a to the eighth vertically extending portion 62d extending vertically, the sheet material container 100 is resistant to deformation against forces applied in the vertical direction. can be improved. That is, better structural strength of the sheet material container 100 can be achieved.
  • the second protruding portion 65b is, for example, bifurcated from the first vertically extending portion 61a side toward the first side edge seal portion 46 side.
  • the sixth protruding portion 65f is bifurcated, for example, from the fifth vertically extending portion 62a side toward the first side edge seal portion 46 side.
  • the fourth protruding portion 65d is bifurcated from the third vertically extending portion 61c side toward the second side edge seal portion 47 side, for example.
  • the eighth projecting portion 65h is bifurcated, for example, from the seventh vertically extending portion 62c side toward the second side edge seal portion 47 side.
  • one inner peripheral main body seal portion 26a is arranged on each of the front portion 20a and the rear portion 20b.
  • Each of the inner peripheral side main body seal portions 26a is, for example, formed in a substantially rectangular shape elongated vertically in a front view.
  • FIG. 12 The sheet material container 100 according to the present embodiment differs from the sheet material container 100 according to the above-described first embodiment and its modification in the points described below. It is configured in the same manner as the sheet material container 100 according to the form and its modification.
  • the sheet material container 100 further includes a protective cover 90 made of film and covering the outer surface of the container body 20 .
  • a protective cover 90 made of film and covering the outer surface of the container body 20 .
  • the upper end of the protective cover 90 is located above the intersection point 46b of the first side edge seal portion 46, the first front lower side edge seal portion 48a, and the first rear lower side edge seal portion 49a.
  • the lower end of the protective cover 90 is below the intersection 46b of the first side edge seal portion 46, the first front lower side edge seal portion 48a and the first rear lower side edge seal portion 49a. positioned.
  • the intersection 46b of the first front lower side edge seal portion 48a, the first rear lower side edge seal portion 49a, and the first side edge seal portion 46 is covered with the protective cover 90. As shown in FIG.
  • half of the bottom surface constituent sheet portion 33 on the front side constituent sheet portion 31 side is A state in which one side edge of the portion 33a and one side edge 31a of the front side constituent sheet portion 31 are joined, and one side of a half portion 33b of the bottom surface constituent sheet portion 33 on the back side constituent sheet portion 32 side.
  • the state in which the edge and the one side edge 32a of the back side constituent sheet portion 32 are joined can be maintained well.
  • the upper end of the protective cover 90 is located above the intersection point 47b of the second side edge seal portion 47, the second front lower side edge seal portion 48b, and the second rear lower side edge seal portion 49b.
  • the lower end of the protective cover 90 is located below the intersection point 47b of the second side edge seal portion 47, the second front lower side edge seal portion 48b, and the second rear lower side edge seal portion 49b.
  • the intersection 47b of the second front lower side edge seal portion 48b, the second rear lower side edge seal portion 49b, and the second side edge seal portion 47 is covered with the protective cover 90. As shown in FIG.
  • Protective cover 90 is, for example, a shrink label.
  • a shrink label formed in a cylindrical shape in advance is put on the trunk portion 11 of the sheet material container 100, and then the shrink label is shrunk to attach the shrink label to the trunk portion 11 in close contact therewith.
  • vertically extending portions Since the first vertically extending portion 61a to the eighth vertically extending portion 62d) are formed, deformation (crushing) of the container body 20 can be suppressed when the shrink label is shrunk.
  • the protective cover 90 may be, for example, a roll label or a stretch label in addition to the shrink label.
  • the protective cover 90 is a roll label
  • the roll label is wrapped around the body 11 of the sheet material container 100, one end and the other end of the roll label are adhered with an adhesive, and the roll label is attached to the body. 11 and attach it.
  • the protective cover 90 is a stretch label
  • the stretch label is brought into close contact with the body 11 due to the elasticity (rubber elasticity) of the stretch label. It is installed in the state where
  • the material of the protective cover 90 is not particularly limited, but when the protective cover 90 is a shrink label, the protective cover 90 may be recycled PET (polyethylene terephthalate), recycled OPP (oriented polypropylene), recycled OPS (biaxially oriented polystyrene ) or recycled LDPE (low density polyethylene).
  • the protective cover 90 is a roll label, the protective cover 90 is preferably made of a polypropylene resin layer.
  • the protective cover 90 is preferably composed of a resin layer of LLDPE (linear low-density polyethylene).
  • the protective cover 90 preferably surrounds the entire circumference of the trunk portion 11, for example. By doing so, a structure in which the container body 20 is sufficiently reinforced by the protective cover 90 can be realized. More specifically, in the case of the present embodiment, the protective cover 90 covers each of the four planar portions (the front portion 20a, the rear portion 20b, the first side portion 20c, and the second side portion 20d) of the body portion 11. it covers the entire surface. As a result, a structure in which the container body 20 is further reinforced by the protective cover 90 can be achieved. Further, by adopting a configuration in which printing is performed on the surface of the protective cover 90, it is possible to secure more surfaces in the sheet material container 100 on which marking portions, patterns, and the like can be printed.
  • deformation (crushing) of the sheet material container 100 can be suppressed by being reinforced by the first vertically extending portion 61a to the eighth vertically extending portion 62d. Therefore, the deformation of the protective cover 90 can be suppressed, and the visibility and good appearance of the indicating portions and patterns provided on the surface of the protective cover 90 can be more reliably maintained.
  • the upper end of the protective cover 90 is positioned above the crease 89a of the upper portion of the front portion 20a.
  • the upper portion of each of the first vertically extending portion 61a to the eighth vertically extending portion 62d can be well protected by the protective cover 90, and the upper portion of the container body 20 can be sufficiently protected.
  • a reinforced structure can be realized.
  • the protective cover 90 covers at least a portion of the ground contact surface 13 a of the bottom portion 13 .
  • the protective cover 90 can well protect the annular filling portion 68 . Therefore, the self-supporting property of the sheet material container 100 can be more reliably maintained.
  • the protective cover 90 covers at least a portion of the top gusset 14 . By doing so, the piercing strength of the top gusset 14 of the sheet material container 100 can be improved.
  • the first side portion 16a includes a concave surface surrounded by the first vertically extending portion 61a and the second vertically extending portion 61b.
  • the protective cover 90 preferably covers the concave surface. By doing so, a gap is formed between the concave surface and the protective cover 90, and the combination of the gap and the elasticity of each of the first vertically extending portion 61a and the second vertically extending portion 61b. Therefore, a softer grip feeling of the sheet material container 100 can be realized.
  • each of the first side-shaped portion 16a to the fourth side-shaped portion 16d preferably includes, for example, a concave surface, and the protective cover 90 covers each concave surface. By doing so, it is possible to realize a softer gripping feeling over substantially the entire sheet material container 100 .
  • each of the front-to-rear dimension W1 and the lateral width dimension L1 of the container body 20 is the same as before the container body 20 is covered with the protective cover 90. is preferably reduced compared to .
  • illustration of an inner bag is abbreviate
  • the front-rear dimension W1 of the container body 20 referred to here is, for example, the distance between the front end of the first vertically extending portion 61a and the rear end of the fifth vertically extending portion 62a in the front-rear direction (or the third vertical extension).
  • the lateral width dimension L1 of the container body 20 referred to here is, for example, the distance between the left end of the second vertically extending portion 61b and the right end of the fourth vertically extending portion 61d in the left-right direction (or the sixth vertically extending portion 61d).
  • the protective cover 90 when the protective cover 90 is in a reduced state compared to before the container body 20 is covered with the protective cover 90 , a force is applied to the container body 20 inward (toward the center of the container body 20 ) by the protective cover 90 .
  • a force is applied to the container body 20 inward (toward the center of the container body 20 ) by the protective cover 90 .
  • the protective cover 90 there is thereby, for example, as shown in FIG. is in contact with the inner surface of the protective cover 90 .
  • the non-formation region of the filling portion 60 on the first side surface portion 20 c and the non-formation region of the filling portion 60 on the second side surface portion 20 d respectively bend, and a part of each non-formation region is covered with the protective cover 90 .
  • each of the front-to-rear dimension and the lateral width dimension of the portion is preferably reduced compared to before the container body 20 is covered with the protective cover 90 .
  • each of the front-rear dimension and the width dimension is reduced compared to before the container body 20 is covered with the protective cover 90 .
  • each of the front-rear dimension W1 and the lateral width dimension L1 of the container body 20 increases.
  • a part of the region between the first vertically extending portion 61a and the third vertically extending portion 61c in the region where the filling portion 60 is not formed in the front portion 20a is covered with the protective cover 90. is in contact with the inner surface of Similarly, for example, a part of the region between the fifth vertically extending portion 62a and the seventh vertically extending portion 62c in the non-formation region of the filling portion 60 in the back portion 20b contacts the inner surface of the protective cover 90. are doing. Also, for example, a portion of the side edge of the first side edge seal portion 46 and a portion of the side edge of the second side edge seal portion 47 are in contact with the inner surface of the protective cover 90 respectively.
  • the second vertically extending portion 61b at the height of the intersection 46b of the first side edge seal portion 46, the first front lower side edge seal portion 48a, and the first rear lower side edge seal portion 49a. It is preferable that the distance from the sixth vertically extending portion 62b (the distance W2 shown in FIG. 13) is reduced compared to before the container body 20 is covered with the protective cover 90. As shown in FIG. According to this configuration, the distance between the second vertically extending portion 61b and the intersection point 46b and the distance between the sixth vertically extending portion 62b and the intersection point 46b both decrease in the front-rear direction. Become.
  • the fourth vertically extending portion 61d at the height of the intersection 47b of the second side edge seal portion 47, the second front lower side edge seal portion 48b, and the second rear lower side edge seal portion 49b. and the eighth vertically extending portion 62 d (not shown) is preferably reduced compared to before the container body 20 is covered with the protective cover 90 .
  • the timing of attaching the protective cover 90 to the sheet material container 100 may be before or after filling the contents, or when the cap portion 70 is attached to the spout 15 . It may be before or after the cap portion 70 is attached to the spout 15 .
  • the protective cover 90 is detachably attached to the sheet material container 100 from the sheet material container 100 . Therefore, it is possible to realize good recyclability of the sheet material container 100 .
  • the sheet material container 100 may not include the inner bag 40 .
  • the container body 20 constitutes the accommodation area 17 . That is, the container main body 20 is formed and the storage area 17 is formed by joining parts of the inner film layer 23 of the main body forming sheet material 21 at the peripheral edge seal portion 19 .
  • the outer surface 151 of the flange portion 15b is directly bonded to the inner film layer 23 of the main body constituting sheet material 21 by the main body sealing portion 26 .
  • the sheet material container 100 is a pump container having the pump portion 72
  • the sheet material container 100 may be other than a pump container.
  • the sheet material container 100 may have a cap (such as a screw cap) that closes the cylindrical portion 15a.
  • the filling portion 60 includes two vertically extending portions (the first vertically extending portion 61a and the first vertically extending portion 61a and the An example having two vertically extending portions 61b) has been described.
  • the sheet material container 100 does not necessarily have to have the two vertically extending portions.
  • the sheet material container 100 is a sheet material container configured with one or a plurality of sheet materials including a body forming sheet material 21 having an outer film layer 22 and an inner film layer 23 laminated to each other.
  • the container body 20 includes a storage area 17 for storing contents, and a container body 20 that is configured by a body-constituting sheet material 21 and surrounds the storage area 17 .
  • the container body 20 has a body portion 11 and a bottom portion 13, and the main body constituting sheet material 21 includes a front side constituting sheet portion 31 constituting the front side of the body portion 11 and a back side constituting the back side of the body portion 11. It has a component sheet portion 32 and a bottom component sheet portion 33 that configures the bottom portion 13 .
  • the container body 20 includes a front portion 20a formed by the central portion of the front-side constituent sheet portion 31 in the width direction, and a portion of the front-side constituent sheet portion 31 adjacent to one side of the front portion 20a. and a first side portion 20c intersecting with the front portion 20a.
  • the body-constituting sheet material 21 includes a body seal portion 26 where the outer film layer 22 and the inner film layer 23 are joined, and a non-joined portion 24 where the outer film layer 22 and the inner film layer 23 are partially unjoined. and a filling portion 60 capable of enclosing a filler between the outer film layer 22 and the inner film layer 23 in the non-bonded portion 24 .
  • the filling part 60 has a vertically extending part that extends vertically along the boundary between the front part 20a and the first side part 20c. It has a grounding surface 13a that is grounded when it stands on its own, and the vertically extending portion stands substantially vertically from the grounding surface 13a.
  • the filling portion 60 includes a vertically extending portion that extends vertically along the boundary between the front portion 20a and the second side portion 20d, and a vertically extending portion that extends vertically along the boundary between the back portion 20b and the first side portion 20c. It has a vertical extension portion that extends and a vertical extension portion that extends vertically along the boundary between the back surface portion 20b and the second side surface portion 20d, and each vertical extension portion extends from the ground surface 13a. It stands almost vertically. With this configuration as well, the resistance to deformation of the sheet material container 100 against forces applied in the vertical direction can be further improved. Deformation (collapse) of 100 can be suppressed more reliably.
  • a sheet material container comprising one or a plurality of sheet materials including a body forming sheet material having an outer film layer and an inner film layer laminated to each other, the container comprising a containing area for containing a content; a container body that is made of the body-constituting sheet material and surrounds the housing area, the container body having a body and a bottom, and the body-constituting sheet material is the body-constituting sheet material
  • the container body has a front side forming sheet portion forming a front side, a back side forming sheet portion forming a back side of the body portion, and a bottom forming sheet portion forming the bottom portion.
  • a front portion constituted by the central portion in the width direction of the side constituent seat portion, and a portion adjacent to one side of the front portion in the front side constituent seat portion, and with respect to the front portion. and a crossing first side surface portion, wherein the body-constituting sheet material is composed of a body seal portion where the outer film layer and the inner film layer are joined, and the outer film layer and the inner film layer.
  • a sheet material container having a grounding surface that is grounded when the container is grounded, and the vertically extending portion stands substantially vertically from the grounding surface.
  • a sheet material container comprising one or a plurality of sheet materials including a body forming sheet material having an outer film layer and an inner film layer laminated to each other, the container comprising a containing area for containing a content; a container body that is made of the body-constituting sheet material and surrounds the housing area, the container body having a body and a bottom, and the body-constituting sheet material is the body-constituting sheet material
  • the container body has a front side forming sheet portion forming a front side, a back side forming sheet portion forming a back side of the body portion, and a bottom forming sheet portion forming the bottom portion.
  • the sheet material container further comprises a protective cover made of film and covering the outer surface of the container body, and in a side view, the first side edge seal portion, the first front lower side edge seal portion, and the first rear lower side edge seal portion The distance between the vertically extending portions at the height of the intersection of the side edge seal portions is the protective cover.
  • the various constituent elements of the sheet material container 100 do not need to exist independently of each other. That one component is part of another component, part of one component overlaps part of another component, and so on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
PCT/JP2021/033180 2021-09-09 2021-09-09 シート材容器 Ceased WO2023037474A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2023546650A JP7622240B2 (ja) 2021-09-09 2021-09-09 シート材容器
PCT/JP2021/033180 WO2023037474A1 (ja) 2021-09-09 2021-09-09 シート材容器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/033180 WO2023037474A1 (ja) 2021-09-09 2021-09-09 シート材容器

Publications (1)

Publication Number Publication Date
WO2023037474A1 true WO2023037474A1 (ja) 2023-03-16

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Country Link
JP (1) JP7622240B2 (https=)
WO (1) WO2023037474A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230114929A1 (en) * 2020-03-13 2023-04-13 Kao Corporation Container

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020110865A1 (ja) * 2018-11-26 2020-06-04 花王株式会社 シート材容器
WO2021049385A1 (ja) * 2019-09-09 2021-03-18 株式会社フジシールインターナショナル シート材容器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020110865A1 (ja) * 2018-11-26 2020-06-04 花王株式会社 シート材容器
WO2021049385A1 (ja) * 2019-09-09 2021-03-18 株式会社フジシールインターナショナル シート材容器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230114929A1 (en) * 2020-03-13 2023-04-13 Kao Corporation Container
US12246900B2 (en) * 2020-03-13 2025-03-11 Kao Corporation Container

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JPWO2023037474A1 (https=) 2023-03-16
JP7622240B2 (ja) 2025-01-27

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