JP2011088647A - Film-made gusset bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a film-made gusset bag maintaining its self-standing property, and forming a large opening when it is unsealed. <P>SOLUTION: The film-made gusset bag 10 is equipped with: a pair of barrel members 11, 12; a pair of side members 14, 14 which are inwardly bent in a V-shape; and a top plate 13 which is connected to an upper portion 11a of one barrel member 11 to form a rectangular top plate portion 13a. A peripheral edge of the top plate 13 is heat-sealed to a peripheral edge of the other barrel member 12 and upper peripheral edges of the pair of side members 14, 14. A portion corresponding to the top plate portion 13a of the top plate 13 is inwardly bent. Lower peripheral edges of the pair of barrel members 11, 12 are heat-sealed to each other, and further, heat-sealed to the pair of side members 14, 14, forming a bottom part 15 forming a rectangular self-standing flat part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a film gusset bag, and more particularly to a film gusset bag having a self-supporting flat portion at the bottom, a top plate portion having a planar rectangular shape, and the top plate portion being able to be greatly opened.

  Conventionally, a film gusset bag having a self-supporting flat portion at the bottom is known. For example, in such a film gusset bag, a fluid content such as a liquid or a granular material is stored.

  On the other hand, there is a need for a film gusset bag that is directly packed with contents such as snacks and snacks, has self-supporting properties, and has a wide opening so that the contents can be easily taken out.

JP 2000-153849 A JP2008-230658

  The present invention has been made in consideration of such points, and provides a film gusset bag that is self-supporting and that can easily take out the contents by wide opening. With the goal.

  The present invention relates to a film gusset bag, a pair of body members stacked on each other, a side member disposed on each side of the pair of body members and bent in a V shape toward the inside, A top plate member that is connected to the upper part of the body and forms a flat rectangular top plate part, and the periphery of the top plate is heat-sealed to the periphery of the other body and the upper peripheral edge of the pair of side members. The portion corresponding to the plate portion is bent in a V shape toward the inside, and the lower peripheral edges of the pair of body members are heat-sealed with each other and heated to the peripheral edges of the pair of side members bent inward. The film gusset bag is characterized in that a bottom portion of a pair of sealed and heat-sealed body members is bent toward one body member or the other body member to form a self-supporting flat portion.

  The present invention is the film gusset bag characterized in that the upper portions of the pair of side members each have a folded piece of an isosceles triangle formed by folding outward.

  The present invention is the film gusset bag in which the periphery of the top plate is heat-sealed to the periphery of the folded piece provided on the pair of side members.

  The present invention provides a notch for cutting a gusset bag along a cutting line in a horizontal direction from one side to the other side in a heat sealing portion of the top plate material and the other body material that are heat-sealed with each other. Is a film gusset bag having the same length as the maximum width of the top plate and the maximum width of the other body.

  The present invention is characterized in that the heat seal layer of the material of the film gusset bag has an easy peel film, and is opened by peeling off the heat-sealed top plate from the other body and the pair of side members. It is a gusset bag made of film.

  According to the present invention, a perforation is provided on the top plate material so as to extend in the vertical direction from the upper end of the heat seal portion with the other body material toward the top plate portion and extend horizontally on the top plate portion. A gusset bag made of film, which is opened by cutting a top plate material along.

  According to the present invention, when the film gusset bag is opened, a large opening is provided, and the contents can be easily taken out from the large opening.

FIG. 1 is a perspective view showing an embodiment of a film gusset bag. FIG. 2 is a surface view showing a film gusset bag. FIG. 3 is a plan view showing a film gusseted bag in a state where the peripheral edge of the lower end is not heat-sealed. The figure which shows the manufacturing method of a film gusset bag. The figure which shows the manufacturing method of a film gusset bag. The figure which shows the manufacturing method of a film gusset bag. The figure which shows the modification of a film gusset bag. The perspective view which shows the modification of a film-made gusset bag.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 to 6 are views showing an embodiment of a film gusset bag according to the present invention. 1 is a perspective view showing a film gusset bag, FIG. 2 is a surface view showing the film gusset bag, FIG. 3 is a plan view showing the film gusset bag in which the lower edge is not heat-sealed, and FIGS. FIG. 6 is a diagram showing a method of manufacturing a film gusset bag.

  As shown in FIGS. 1 to 3, the film gusset bag 10 is stored in a paper box (also referred to as a paper container) (not shown) having a shape-retaining property in advance, such as sweets and snacks. It is used to store confectionery, powdered bodies, etc. that are stored directly or individually, and has a self-supporting flat portion 15 and a top plate portion 13a having a flat rectangular shape. Such a film gusset bag 10 can be obtained by laminating laminated films, which will be described later, and heat-sealing the periphery.

  That is, the film gusset bag 10 is disposed on the side of the one body 11 and the other body 12 and the pair of body materials 11 and 12 stacked on each other, and is bent in a V shape toward the inside. A pair of side members 14, 14 having an inner end 14 b and a top plate member 13 connected to the upper portion 11 a of one body 11 to form a flat rectangular top plate portion 13 a are provided.

  Of these, the peripheral edge of the top plate 13 connected to the upper part 11 a of one body 11 is heat-sealed to the peripheral edge of the other body 12 and the upper peripheral edges of the pair of side members 14, 14. Moreover, the part which forms the top-plate part 13a among the top-plate materials 13 has the inner side edge 13b bent inside by V shape.

  In this case, the upper parts of the pair of side members 14, 14 are folded outward to form a folded piece 14 a having an isosceles triangle shape, and the peripheral edge of the portion forming the top plate portion 13 a of the top plate member 13 is the side member 14. , 14 is heat sealed to the periphery of the folded piece 14a.

  Furthermore, the lower end rims 11b and 12b of the one body 11 and the other body 12 are heat sealed to each other, and the lower end rims 11b and 12b of the one body 11 and the other body 12 are a pair of sides. Heat sealing is also performed on the peripheral edges of the lower ends of the materials 14 and 14.

  The bottom portion 15 of the one body 11 and the other body 12 thus heat-sealed is bent to one side of the one body 11 or the other body 12, for example, the other body 12 side. Thus, a flat rectangular self-supporting flat portion is formed. The film rectangular gusset bag 10 can be self-supported by the flat rectangular self-supporting flat portion.

  Further, a notch 16 for cutting the gusset bag 10 horizontally along the cutting line 16a from one side to the other side is provided in the heat sealing portion 18 of the top plate 13 and the other body 12 which are heat-sealed with each other. It has been.

  In this case, the top plate 13, the one body 11, and the other body 12 are all rectangular and have the same width. The length of the cutting line 16a formed on the top plate 13 and the other body 12 is the same as the width of the top plate 13 (becomes the maximum width) and the width of the other body 12 (becomes the maximum width). It has a length. Further, the length (height) of one body 11 is shorter than the length (height) of the other body 12.

  The heat seal layer of the material of the film gusset bag may have an easy peel film. In this case, the top plate 13 can be opened by peeling off the other body 12 and the pair of side members 14.

  Further, as shown in FIG. 8, the top plate 13 extends in the vertical direction from the upper end portion of the heat seal portion 18 with the other body 12 toward the top plate 13a, and extends horizontally on the top plate 13a. Two perforations 20 may be provided, and the top plate member 13 may be cut along the perforations 20 to be opened.

  Next, the material of the film gusset bag 10 will be described.

As a material of the film gusset bag 10 that is opened by cutting the perforation 20 formed on the top plate material using a film that is completely sealed in the heat seal layer, the following laminated films (1) to (18 ) Can be used.
(1) PET / LLDPE,
(2) PET / AL / LLDPE,
(3) PET / AL / ONY / LLDPE,
(4) PET / ONY / AL / LLDPE,
(5) PET / CPP,
(6) PET / AL / ONY / CPP,
(7) PET / ONY / AL / CPP,
(8) Transparent deposition PET / (ONY) / LLDPE,
(9) Transparent deposition PET / (ONY) / CPP,
(10) PET / VMPET (transparent vapor deposition PET) / LLDPE,
(11) PET / VMPET (transparent vapor deposition PET) / CPP,
(12) OPP / VMPET (transparent vapor deposition PET) / LLDPE,
(13) OPP / VMPET (transparent vapor deposition PET) / CPP,
(14) ONY / (VMPET, transparent deposited PET) / LLDPE,
(15) PET / PE / AL (VMPET, transparent deposition PET) / PE / LLDPE,
(16) PET / PE / AL (VMPET, transparent deposited PET) / PE / CPP,
(17) OPP / PE / AL (VMPET, transparent deposited PET) / PE / LLDPE,
(18) OPP / PE / AL (VMPET, transparent deposited PET) / PE / CPP

  In addition, regarding the said laminated | multilayer film (1)-(18), the LLDPE layer and the CPP layer are heat seal layers.

  When the top plate 13 heat-sealed from the body 12 and the side material 14 is peeled off, an easy peel film is used as the heat seal layer of (1) to (18).

  Next, a method for manufacturing the film gusset bag 10 will be described with reference to FIGS.

  First, as shown in FIG. 4, the other body 12 made of a laminated film is prepared, and a pair of laminated films folded in a V shape toward the inside on each side of the other body 12. Side members 14 and 14 are arranged.

  At this time, the facing surface of the other body member 12 and the side members 14 and 14 is a heat seal surface, and the side periphery of the other body member 12 corresponding to the side periphery of each side member 14 and 14. Heat sealed.

  Next, as shown in FIG. 5, the top plate 13 bent in a V shape toward the inside (when opening along the perforation, two perforations 20 are placed inside the top plate 13. Is inserted between the upper parts of the pair of side members 14. At this time, the outer surface of the bent top plate 13 is a heat seal surface.

  Thereafter, as shown in FIG. 6, one body 11 is superimposed on another body 12, the pair of side members 14, 14 and the top plate 13. Thereafter, the peripheral edge of the top plate 13 is heat-sealed to the upper peripheral edge of one body 11, the peripheral edge of the top plate 13 is heat-sealed to the pair of side members 14, 14 and the peripheral edge of the top plate 13 is the other. The body 12 is heat-sealed at the periphery.

  In this case, an upper part of the pair of side members 14 and 14 is folded in advance outward to form an isosceles triangular folded piece 14a.

  In this way, the film gusset bag 10 in which the lower ends of one body 11 and the other body 12 are opened is obtained.

  The film gusset bag 10 is filled with contents such as sweets, snacks, or individually wrapped sweets, powders, etc. from the lower end openings of one body 11 and the other body 12. The lower end rims 11b and 12b of the body part 11 and the other body part 12 are heat-sealed, and the lower end rims 11b and 12b of the one body part 11 and the other body part 12 are on the periphery of the pair of side members 14 and 14. Heat sealed.

  Then, the heat-sealed one body 11 and the bottom 15 of the other body 12 are bent toward the other body 12 to form a self-supporting flat portion.

  Further, when the film gusset bag 10 is opened, the top plate 13 and the other body 12 are cut from the cut 16 along the cut line 16a. In this case, since the cutting line 16a has the same width as the maximum width of the top plate 13 and the maximum width of the other body 12, the cutting line 16a is cut along the cutting line 16a and the top surface material 13 is peeled off (or A large opening can be formed in the upper part of the film gusset bag 10 by opening it along the perforation 20 applied to the top surface material 13, and the contents can be removed from the large opening thus formed. Can be taken out. In this case, the laminated film of the film gusset bag 10 preferably has a structure that can be easily cut along the cut line 16a.

  As described above, according to the present embodiment, a self-supporting flat portion having a planar rectangular shape can be formed by the bottom portion of one barrel portion 11 and the other barrel portion 12, and the upper portion 11a of the one barrel member 11 can be formed. The top plate portion 13a connected to the top plate member 13 can form a top plate portion 13a having a rectangular plane.

  Further, when the film gusset bag 10 is opened, the top plate 13 and the other body 12 are cut along a cutting line 16a having the same length as the maximum width of the top plate 13 and the other body 12, and the top surface 13 is removed. Since it can be peeled off (or opened along the perforation 20 formed on the top material 13), a large opening can be formed in the upper part of the film gusset bag 10, and the contents can be formed from the large opening. Can be easily taken out.

  Next, a modification of the present invention will be described with reference to FIG.

  1 to 6, the top plate 13 and the other body 12 have a rectangular shape, but as shown in FIG. 7, the top plate 13 and the other body 12 are notched on the upper side. 19 may be provided, and the top plate member 13 and the upper portion of the other body member 12 may be tapered upward.

DESCRIPTION OF SYMBOLS 10 Film gusset bag 11 One body material 11a Upper part 12 Other body material 13 Top plate material 13 Top plate part 14 Side material 14a Folding piece 15 Bottom part 16 Cut 16a Cut line 19 Notch 20 Perforation

Claims (6)

In film gusset bags,
A pair of body members stacked together;
A side member disposed on each side of the pair of body members and bent in a V shape toward the inside;
A top plate that is connected to the upper part of one body and forms a flat rectangular top plate,
The periphery of the top plate is heat-sealed to the periphery of the other body and the pair of side members upper periphery,
The portion corresponding to the top plate portion of the top plate is bent in a V shape toward the inside,
The bottom edges of the pair of body members are heat-sealed to each other and heat-sealed to the periphery of the pair of side members bent inward, and the bottom of the pair of heat-sealed body members is one body member or the other. A gusset bag made of film, which is bent to the body side to form a self-supporting flat portion.   2. The film gusset bag according to claim 1, wherein the upper portions of the pair of side members each have a folded piece of an isosceles triangle formed by folding outward.   3. The film gusset bag according to claim 2, wherein the periphery of the top plate is heat-sealed to the periphery of the folded piece provided on the pair of side members. In the heat seal portion of the top plate and the other body heat-sealed with each other, a cut is provided to cut the gusset bag along the cutting line in the horizontal direction from one side to the other side,
2. The film gusset bag according to claim 1, wherein the cutting line has the same length as the maximum width of the top plate and the maximum width of the other body.   The heat seal layer of the material of the film gusset bag has an easy peel film, and is opened by peeling off the heat-sealed top plate from the other body material and the pair of side materials. Film gusset bags.   The top plate is provided with a perforation extending vertically from the upper end of the heat seal portion with the other body to the top plate and extending horizontally on the top plate, and the top plate along the perforation. The film gusset bag according to claim 1, wherein the film is opened by cutting.

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