WO2022009276A1 - 内容物詰めシート材容器の製造方法 - Google Patents

内容物詰めシート材容器の製造方法 Download PDF

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Publication number
WO2022009276A1
WO2022009276A1 PCT/JP2020/026446 JP2020026446W WO2022009276A1 WO 2022009276 A1 WO2022009276 A1 WO 2022009276A1 JP 2020026446 W JP2020026446 W JP 2020026446W WO 2022009276 A1 WO2022009276 A1 WO 2022009276A1
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WO
WIPO (PCT)
Prior art keywords
sheet material
content
material container
filled
filling
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/JP2020/026446
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English (en)
French (fr)
Japanese (ja)
Inventor
彰 倉賀野
貴博 大塚
正俊 横田
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
Fuji Seal International Inc
Original Assignee
Kao Corp
Fuji Seal International Inc
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, Fuji Seal International Inc filed Critical Kao Corp
Priority to PCT/JP2020/026446 priority Critical patent/WO2022009276A1/ja
Priority to JP2022534505A priority patent/JP7492008B2/ja
Publication of WO2022009276A1 publication Critical patent/WO2022009276A1/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
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/18—Controlling escape of air from containers or receptacles during filling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/04—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers having air-escape, or air-withdrawal, passages

Definitions

  • the present invention relates to a method for manufacturing a content-filled sheet material container.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2016-535707
  • the contents are filled in a sheet material container configured by one or a plurality of sheet materials including a main body constituent sheet material having an outer film layer and an inner film layer laminated to each other.
  • a method for manufacturing a stuffed sheet material container wherein the sheet material container is composed of a storage area for accommodating the contents and a main body constituent sheet material, and has a container main body surrounding the storage area.
  • the main body constituent sheet material which is a joint portion between the outer film layer and the inner film layer, and the outer film layer and the inner film layer are partially non-bonded.
  • the present invention relates to a method for manufacturing a content-filled sheet material container, which comprises a contact filling step of filling the contents through the stopper member in a state.
  • FIG. 1 It is a perspective view which shows a preferable embodiment of the content-packed sheet material container manufactured by the manufacturing method of the content-filled sheet material container of this invention. It is a back view of the sheet material container shown in FIG. 1. It is sectional drawing which follows the AA line of FIG. It is an exploded perspective view which shows the outer film layer and the inner film layer of the main body composition sheet material. It is an exploded perspective view which shows the inner bag constituent sheet material and the main body constituent sheet material. It is a top view which shows the container constituent sheet material which has the inner bag constituent sheet material and the main body constituent sheet material which are laminated with each other. It is a top view which shows the sheet material container before enclosing the filler.
  • FIG. 8 (a) and 8 (b) are views for explaining a method for manufacturing a content-filled sheet material container according to the first embodiment
  • FIG. 8 (a) a stopper member is used as an injection port. The state in which they are in contact with each other is shown, and FIG. 8B shows a state in which the plug member and the injection port are separated from each other.
  • FIG. 8B shows a state in which the plug member and the injection port are separated from each other.
  • 11 (a) and 11 (b) are diagrams for explaining a method for manufacturing a content-filled sheet material container according to a modification 2 of the first embodiment.
  • FIG. 12 (a) and 12 (b) are views for explaining the manufacturing method of the content-filled sheet material container according to the second embodiment, and in FIG. 12 (a), the stopper member is used as the injection port. The state in which they are in contact with each other is shown, and FIG. 12B shows a state in which the plug member and the injection port are separated from each other. It is a figure for demonstrating the manufacturing method of the content-filled sheet material container which concerns on 3rd Embodiment.
  • 14 (a), 14 (b), and 14 (c) are diagrams for explaining a method for manufacturing a content-filled sheet material container according to a fourth embodiment, of which FIG. 14 (a) is a diagram. A state in which the plug member is in contact with the injection port is shown, FIG.
  • FIG. 14 (b) is a partially enlarged view of FIG. 14 (a), and FIG. 14 (c) is a bottom view of the annular member.
  • 15 (a), 15 (b), and 15 (c) are views for explaining a method for manufacturing a content-filled sheet material container according to a modified example of the fourth embodiment, and of these, FIG. 15 ( a) shows a state in which the plug member is in contact with the injection port, FIG. 15 (b) is a partially enlarged view of FIG. 15 (a), and FIG. 15 (c) shows the plug member and the spout member. It is a schematic plan view of.
  • the present invention relates to a method for manufacturing a content-filled sheet material container that improves the filling property of the contents in the storage area.
  • FIGS. 8 (a) and 8 (b) the movement of the content 18 in the filling step is indicated by an arrow A.
  • the method for manufacturing a content-filled sheet material container 300 includes one or a plurality of sheet materials including a main body constituent sheet material 21 having an outer film layer and an inner film layer laminated to each other.
  • the sheet material container 100 is the one before filling the contents 18.
  • the sheet material container 100 includes a storage area 17 for accommodating the contents 18, and a container body 20 which is composed of a main body constituent sheet material 21 and surrounds the storage area 17.
  • the main body constituent sheet material 21 is a non-bonded portion in which the main body peripheral edge sealing portion 28, which is a joint portion between the outer film layer 22 and the inner film layer 23, and the outer film layer 22 and the inner film layer 23 are partially non-bonded. It has a part 24 and a filling part 60 in which a filler is sealed between the outer film layer 22 and the inner film layer 23 in the non-joining part 24, and the method is in the accommodating area 17.
  • a step of filling the content 18 into the accommodating area 17 from the injection port 91 for injecting the content 18 is provided, and the filling step closes the injection port 91 by bringing the plug member 210 into contact with the injection port 91.
  • the abutting filling step of filling the content 18 through the plug member 210 in the state of being filled is included.
  • the state in which the injection port 91 is closed is not limited to the state in which the injection port 91 is completely closed. That is, the accommodating area 17 and the external space of the sheet material container 100 may be electrically connected to each other in a state where the plug member 210 is in contact with the injection port 91. In other words, the accommodating area 17 and the external space of the sheet material container 100 may communicate with each other in a state where the plug member 210 is in contact with the injection port 91.
  • the filling step is performed so as to include the moment when the internal pressure of the accommodating region 17 exceeds the atmospheric pressure. Further, in the step of filling the accommodation region 17 with the content 18, gas (for example, air) may be injected into the accommodation region 17 together with the content 18.
  • gas for example, air
  • a contact filling step is included in which the content 18 is filled through the plug member 210 in a state where the injection port 91 is closed by bringing the plug member 210 into contact with the injection port 91. That is, the content 18 is filled with the injection port 91 closed by the plug member 210.
  • gas and the like are suppressed from leaking from the accommodating area 17, so that the content 18 can be filled while sufficiently expanding the accommodating area 17. Therefore, a sufficient amount of the content 18 that can be filled can be sufficiently secured, and the filling property of the content 18 in the accommodating area 17 becomes good.
  • the volume of the accommodating area 17 can be stabilized (high reproducibility can be realized for the volume of the accommodating area 17). Further, since the occurrence of wrinkles in the container body 20 can be suppressed, a good appearance of the content-filled sheet material container 300 can be realized.
  • the sheet material container 100 includes a spout member 15 having a discharge port for discharging the contents 18 from the accommodating area 17, and the discharge port also serves as an injection port 91. Then, according to the above-mentioned configuration, since the content 18 can be filled while sufficiently expanding the storage area 17, the liquid level of the filled content 18 does not reach the spout member 15 (located in the storage area 17). The structure can be easily realized.
  • the type of the content 18 is not particularly limited.
  • the content 18 include shampoo, conditioner, body soap, detergent, bleach, fabric softener, beverage, food, engine oil, chemicals and the like.
  • the content 18 may be a liquid (including a paste) or a solid (for example, a granular one (including a granular one) or a powder). good.
  • the content 18 is, for example, a liquid.
  • the viscosity of the content 18 is preferably 1 mPa ⁇ s or more and 120,000 mPa ⁇ s or less (measured with a B-type viscometer, for example, Viscometer TV manufactured by Toki Sangyo Co., Ltd.) at 30 ° C. -10 or measured with a viscometer TVB-10 or the like), more preferably 1 mPa ⁇ s or more and 60,000 mPa ⁇ s or less.
  • the filler enclosed in the filling portion 60 can be a fluid (gas or liquid), a solid (for example, powder or granular material, resin pellets, etc.) or a semi-solid (for example, a foaming agent, etc.), and is compressible such as air. It is preferably a fluid.
  • the content-filled sheet material container 300 has a bottom gusset 13 (FIG. 2) as a bottom portion, and can stand on its own in a state where the bottom gusset 13 is placed on a horizontal mounting surface. It has become.
  • the description of the positional relationship (vertical relationship, etc.) of each component of the content-filled sheet material container 300 is as shown in FIGS. 1 and 2 unless otherwise specified.
  • This is an explanation of the positional relationship in a self-supporting state.
  • the positional relationship in these explanations does not necessarily match the positional relationship at the time of using or manufacturing the content-filled sheet material container 300.
  • the positional relationship shown in each figure may be described with respect to the positional relationship of each component of the content-filled sheet material container 300.
  • the front side of the content-filled sheet material container 300 (the back side of the paper surface in FIG. 2) is referred to as the front, and the back side of the content-filled sheet material container 300 (the front side of the paper surface in FIG.
  • the left side (right side in FIG. 2) facing the front of the material container 300 is referred to as the left side
  • the right side (left side in FIG. 2) facing the front of the content-filled sheet material container 300 is referred to as the right side.
  • the left-right direction of the content-filled sheet material container 300 may be referred to as a width direction.
  • the container body 20 is a bag having a body portion 11, a heaven gusset 14 arranged on the upper side of the body portion 11, and a bottom gusset 13 arranged on the lower side of the body portion 11. It is formed in a shape.
  • the present invention is not limited to this example, and the container body 20 may not have the heaven gusset 14 and may not have the bottom gusset 13.
  • the container body 20 surrounds the storage area 17 (in the case of the present embodiment, it surrounds the inner bag 40 described later).
  • the container body 20 constitutes the outer shell of the sheet material container 100.
  • the body portion 11, the top gusset 14 and the bottom gusset 13 of the container body 20 may be referred to as the body portion 11, the top gusset 14 and the bottom gusset 13 of the sheet material container 100.
  • the front shape of the body portion 11 is not particularly limited, but in the case of the present embodiment, for example, as shown in FIG. 2, the front surface shape is a vertically long shape having a substantially constant width dimension, and the upper edge of the body portion 11 is upward. It is formed in a convex arc shape.
  • the body portion 11 has a first main surface portion 20a (front panel) and a second main surface portion 20b (rear panel) facing each other with the accommodating area 17 in between.
  • the first main surface portion 20a is located on the front side
  • the second main surface portion 20b is located on the back side (see also FIGS. 1 and 2).
  • the first main surface portion 20a is formed symmetrically, for example, and the second main surface portion 20b is also formed symmetrically, for example. Further, the first main surface portion 20a and the second main surface portion 20b are formed symmetrically in the front-rear direction except, for example, the inter-face connection portion 65 of the filling portion 60, which will be described later.
  • the first main surface portion 20a bulges toward the front, and the second main surface portion 20b bulges toward the rear.
  • the container main body 20 is formed by bending the main body constituent sheet material 21 (see FIGS. 5 and 6) and joining the peripheral edges of the main body constituent sheet material 21 to each other (in the case of the present embodiment, the inner bag constituting the inner bag 40). It is configured by joining to each other via the constituent sheet material 41).
  • the container body 20 includes a gusset peripheral peripheral seal piece 45 arranged along the peripheral edge of the heaven gusset 14, and a side seal piece 46 extending vertically along the left and right edge portions of the body portion 11. , Is equipped.
  • the gusset peripheral peripheral seal piece 45 and the side seal piece 46 stand, for example, toward the outside of the container body 20.
  • the sheet material container 100 further includes an inner bag 40 defining the storage area 17, and the container body 20 covers the inner bag 40.
  • the inner bag 40 is configured, for example, by joining a part of the peripheral portion of the inner bag constituent sheet material 41 (see FIG. 5) to each other (see FIG. 3). That is, the bag-shaped inner bag 40 is formed by bending the inner bag constituent sheet material 41 and joining the peripheral edges of the inner bag constituent sheet material 41 to each other. As described above, the inner bag 40 is covered with the container body 20.
  • the inner bag 40 has a storage area 17 inside the inner bag 40.
  • the sheet material container 100 includes an inner bag 40 arranged inside the container body 20, and the inner bag 40 is the innermost sheet of one or a plurality of sheet materials constituting the sheet material container 100. It is composed of an inner bag constituent sheet material 41 which is a material.
  • the shape of the inner bag 40 is not particularly limited, but in the case of the present embodiment, the inner bag 40 is formed in the same shape as the container body 20. As shown in FIG. 3, the inner bag 40 has a first surface-shaped portion 40a located on the front side and a second surface-shaped portion 40b located on the back surface side with the accommodating area 17 interposed therebetween.
  • the sheet material container 100 includes a spout member 15 having a discharge port for discharging the contents 18 from the accommodating area 17, and the discharge port also serves as an injection port 91. More specifically, the sheet material container 100 includes, for example, a spout member 15 provided so as to penetrate the heaven gusset 14 and a cap portion 70 attached to the spout member 15 (for example, detachably attached). I have. As shown in FIGS. 1 and 2, for example, the spout member 15 has a cylindrical pouring cylinder portion 15a through which the contents 18 pass and an axial direction at one end (lower end) of the pouring cylinder portion 15a in the axial direction.
  • a plate-shaped plate-shaped portion 15b provided so as to be orthogonal to the plate-shaped portion 15b is integrally provided.
  • a thread is formed on the outer peripheral surface of the dispensing cylinder portion 15a, and the dispensing cylinder portion 15a has a male screw shape.
  • the dispensing cylinder portion 15a penetrates the heaven gusset 14 up and down and protrudes upward from the heaven gusset 14.
  • the plate-shaped portion 15b projects in a flange shape from the lower end of the dispensing cylinder portion 15a toward the periphery.
  • the planar shape of the plate-shaped portion 15b is not particularly limited, and examples thereof include a substantially square shape.
  • the plate-shaped portion 15b is provided on, for example, the inner surface or the outer surface of the portion of the inner bag constituent sheet material 41 arranged along the top gusset 14 of the body portion 11.
  • the plate-shaped portion 15b is joined to the inner surface (lower surface) of the inner bag constituent sheet material 41 in, for example, the top gusset 14. Therefore, the plate-shaped portion 15b is joined to the main body constituent sheet material 21 via the inner bag constituent sheet material 41.
  • the present invention is not limited to this example, and the plate-shaped portion 15b may be directly bonded to the inner film layer 23 of the main body constituent sheet material 21.
  • the joint portion between the plate-shaped portion 15b and the inner bag constituent sheet material 41 surrounds the pouring cylinder portion 15a in a circular manner in a plan view.
  • the joint portion between the plate-shaped portion 15b and the inner bag constituent sheet material 41 is formed, for example, in a range overlapping with the annular main body sealing portion 26 (see FIG. 5) located around the insertion hole 21a.
  • the opening 15c on the upper end side of the dispensing cylinder portion 15a is a discharge port for discharging the contents 18 from the accommodating area 17, and also serves as an injection port 91.
  • the plate-shaped portion 15b is formed with an opening 15d coaxially with the inner space of the dispensing cylinder portion 15a. The content 18 in the accommodating area 17 is discharged to the outside through the openings 15d and 15c.
  • the cap portion 70 includes, for example, a mounting portion 71 which is a female screw-shaped tubular portion that is detachably screwed to the dispensing cylinder portion 15a, a pump portion 72 fixed to the mounting portion 71, and a pump. It includes a dip tube 77 extending downward from the 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 protruding upward from the pump portion 72 and a nozzle portion 75 horizontally protruding from the upper end portion of the head portion 73, and is provided at the tip of the nozzle portion 75. Is formed with a discharge port 76 for discharging the contents 18. When the head portion 73 is pushed (pressed) with respect to the pump portion 72, the content 18 is discharged from the discharge port 76 by the action of the pump portion 72.
  • the filling portion 60 has a first filling portion 61 formed in a circumferential shape along the peripheral edge portion of the first main surface portion 20a and a second filling portion 61.
  • a second filling portion 62 formed in a circular shape along the peripheral edge portion of the main surface portion 20b, and a third filling portion 63 (FIG. 2) formed in a circular shape along the peripheral edge portion of the bottom gusset 13.
  • the top gusset 14 includes a fourth filling portion 64 (FIG. 1) formed in a circular shape around the dispensing cylinder portion 15a.
  • the first filling portion 61 and the fourth filling portion 64 are connected via the face-to-face connection portion 65, and the first filling portion 61 and the third filling portion 63 are connected to each other through the face-to-face connection portion. It is connected via 65. Further, the second filling portion 62 and the third filling portion 63 are connected via the face-to-face connecting portion 65. More specifically, the lower edge of the first filling portion 61 is connected to the leading edge of the third filling portion 63, and the lower edge of the second filling portion 62 is connected to the trailing edge of the third filling portion 63.
  • the central portion of the upper end portion of the filling portion 61 in the lateral width direction is connected to the central portion of the front end portion of the fourth filling portion 64 in the lateral width direction.
  • the sheet material container 100 is sufficiently structurally strong over almost the entire container body 20.
  • the entire filling portion 60 is formed in a continuous manner.
  • the sheet material container 100 may be provided with a plurality of filling portions 60 independent of each other.
  • the main body constituent sheet material 21 mutually has an outer film layer 22 constituting the outer surface side of the container main body 20 and an inner film layer 23 constituting the inner surface side of the container main body 20. It is configured by laminating and joining. That is, as an example, in the case of the present embodiment, the main body constituent 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 main body constituent sheet material 21 may have a film layer other than the outer film layer 22 and the inner film layer 23. In the case of the present embodiment, the outer film layer 22 and the inner film layer 23 are formed to have 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 from each other. In the case of an irregular shape, it is preferable that the outer film layer 22 has a larger shape 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 ejection tube portion 15a of the spout member 15 is inserted.
  • the main body constituent sheet material 21 is formed with a non-bonded portion 24 (FIG. 6) in which the outer film layer 22 and the inner film layer 23 are partially non-bonded.
  • a non-bonding agent such as glue-killing agent
  • glue-killing agent any agent can be used as long as it can suppress the bonding between the outer film layer 22 and the inner film layer 23.
  • the glue-killing agent for example, printing inks, medium inks, glue-killing inks and the like used for each of offset printing, flexographic printing and letterpress printing (letterpress printing) can be preferably used. Further, thermosetting type or ultraviolet curable type ink can be preferably used.
  • the range subjected to the non-joining treatment is the non-joining portion 24.
  • the filling portion 60 is formed by enclosing the filler in the non-joining portion 24.
  • the main body seal portion 26 is not limited to the formation by the non-bonding treatment, and may be formed by heat sealing using a mold having the shape of the main body seal portion 26.
  • the filling portion 60 is not necessarily limited to being formed on all of the non-joining portions 24, and may be formed on a part of a plurality of non-joining portions 24.
  • FIG. 5 in each of the outer film layer 22 and the inner film layer 23, the regions that are joined to each other to form the main body sealing portion 26 are provided with hatching that rises to the right for convenience.
  • FIGS. 5 and 6 in the main body constituent sheet material 21, a region where the outer film layer 22 and the inner film layer 23 are joined to each other in order to define the non-bonded portion 24, that is, a region where the main body seal portion 26 is formed. Has a hatching that rises to the right for convenience. Further, in FIG.
  • the seal boundary line 21c which is the boundary line between the seal region of the peripheral portion of the main body constituent sheet material 21 and the other region, is shown by a two-dot chain line.
  • the outer film layer 22 and the inner film layer 23 are mutually bonded and the inner film is formed during bag making.
  • the layer 23 and the inner bag constituent sheet material 41 are joined to each other.
  • heat sealing, ultrasonic sealing, bonding with an adhesive, or the like can be used as a method of joining the outer film layer 22 and the inner film layer 23, as an example.
  • the sheet material container 100 includes an outside air introducing portion for taking in outside air in the gap 10a between the inner surface of the container body 20 and the outer surface of the inner bag 40.
  • the outside air introduction portion includes, for example, the outside air intake hole 96 formed in the outer film layer 22 and the inner film, as shown in FIGS. 2, 3, 4, 5, and 6. It is configured to include an outside air intake hole 97 formed in the layer 23.
  • the outside air intake hole 96 and the outside air intake hole 97 are arranged at different positions, for example. As an example, as shown in FIG.
  • the outside air intake hole 96 is arranged in the lower part of the second main surface portion 20b of the container body 20, and the outside air intake hole 97 is the second main surface portion 20b of the container body 20. It is located at the top of.
  • the outside air intake hole 96 and the outside air intake hole 97 communicate with each other through a gap between the layers of the outer film layer 22 and the inner film layer 23. Therefore, the inner surface of the container body 20 and the outer surface of the inner bag 40 pass through the outside air intake hole 96, the gap between the outer film layer 22 and the inner film layer 23, and the outside air intake hole 97 in this order.
  • the outside air can be introduced into the gap 10a.
  • 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 constituent sheet material 41 also has a layer structure including a plurality of resin layers.
  • the main body constituent sheet material 21 and the inner bag constituent sheet material 41 include a resin layer of any one of polyethylene-based, polypropylene-based, polyester-based and polyamide-based.
  • the material of the resin layer is not particularly limited, and is, for example, high-density polyethylene (HDPE), medium-density polyethylene (MDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), and ultra-low-density polyethylene (ULDPE).
  • HDPE high-density polyethylene
  • MDPE medium-density polyethylene
  • LDPE low-density polyethylene
  • LLDPE linear low-density polyethylene
  • ULDPE ultra-low-density polyethylene
  • Polyethylene materials such as ethylene-vinyl alcohol copolymer (EVOH), or stretched polypropylene (OPP), unstretched polypropylene (CPP), isotactic PP, syndiotactic PP, atactic PP, random PP, block PP.
  • Polypropylene-based materials such as, or polyester-based materials such as polyethylene terephthalate (PET), amorphous polyethylene terephthalate (acrystalline PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polybutylene naphthalate (PBN).
  • any of a material or a polyamide-based material such as stretched nylon (ONy), unstretched nylon (CNy), nylon 6, nylon 66, nylon 11, nylon 12, MXD6, and the above-mentioned polyethylene-based material. It is particularly preferable that it is a material.
  • the inner bag constituent sheet material 41 is laminated on the main body constituent sheet material 21, and as shown in FIG. 6, the peripheral edge portion of the inner film layer 23 and the peripheral edge portion of the inner bag constituent sheet material 41 are formed. In addition to being bonded to each other, the peripheral edge portion of the outer film layer 22 and the peripheral edge portion of the inner film layer 23 are bonded to each other.
  • the container constituent sheet material 51 is composed of the main body constituent sheet material 21 and the inner bag constituent sheet material 41.
  • the sealing portion of the peripheral edge portion of the container constituent sheet material 51 is referred to as a peripheral edge 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 constituent sheet material 41 (hereinafter, inner / outer sealing portion 43), and the peripheral edge portion of the outer film layer 22 and the inner film layer 23. Includes a sealing portion with the peripheral edge portion (hereinafter referred to as a main body peripheral edge sealing portion 28).
  • the peripheral sealing portion 52 is formed with hatching that rises to the left. Further, in FIG. 6, in the region where the formation region of the peripheral seal portion 52 and the formation region of the main body seal portion 26 overlap, the hatching that rises to the left and the hatch that rises to the right overlap.
  • a method for forming the peripheral edge sealing portion 52 as an example, heat sealing, ultrasonic sealing, bonding with an adhesive, or the like can be used.
  • the main body constituent sheet material 21 is, for example, a first sheet portion 31 which is a portion constituting the first main surface portion 20a and a second sheet portion 32 which is a portion constituting the second main surface portion 20b. It has a bottom gusset constituent sheet portion 38 which is a portion constituting the bottom gusset 13, a heavenly gusset constituent sheet portion 39 which is a portion constituting the heavenly gusset 14, and a tubular extending portion 25.
  • the extending portion 25 extends outward from, for example, the second sheet portion 32.
  • the ceiling gusset constituent sheet portion 39 is formed with an insertion hole 21a into which the ejection cylinder portion 15a of the spout member 15 is inserted.
  • the non-joining portion 24 is formed in a shape corresponding to the shape of the filling portion 60 of the sheet material container 100.
  • the portion 24b to be the fourth filling portion 64 is formed in a circular shape surrounding the insertion hole 21a, for example, as shown in FIG. More specifically, for example, the outer edge (outer line) of the portion 24b has a shape that is one size smaller than the outer line of the ceiling gusset constituent sheet portion 39, and the inner edge of the portion 24b is one size smaller than the insertion hole 21a. It is a large circle.
  • the inner bag constituent sheet material 41 is formed in the same shape as the portion of the main body constituent sheet material 21 excluding the extending portion 25.
  • the seal boundary line 41a of the inner bag constituent sheet material 41 is shown by a two-dot chain line for convenience.
  • the seal boundary line 41a is a boundary line between a region where the inner bag constituent sheet material 41 is joined (sealed) with the main body constituent sheet material 21 and another region in the inner bag constituent sheet material 41, and the container constituent sheet material 51. It is a boundary line between the region where the inner bag constituent sheet materials 41 are joined to each other when the sheet material container 100 is formed and another region in the inner bag constituent sheet material 41.
  • the position of the seal boundary line 41a and the position of the seal boundary line 21c correspond to each other (overlap with each other).
  • An insertion hole 41b through which the ejection cylinder portion 15a of the spout member 15 is inserted is formed in a portion of the inner bag constituent sheet material 41 that overlaps with the top gusset constituent sheet portion 39.
  • the plate-shaped portion 15b of the spout member 15 is joined to, for example, the inner surface of the portion of the inner bag constituent sheet material 41 that overlaps with the top gusset constituent sheet portion 39.
  • the dispensing cylinder portion 15a projects toward the outer surface side of the inner bag constituent sheet material 41 through the insertion hole 41b and the insertion hole 21a of the top gusset constituent sheet portion 39.
  • one or more sheet materials are bent along the bending lines 81 to 85, and at least a part of the innermost layer of the sheet material in the peripheral portion of the sheet material is mutually mutual. It has a peripheral seal portion (in the case of the present embodiment, an inner bag seal portion 42) that is joined. More specifically, the container constituent sheet material 51 is in a state of being valley-folded at the fold line 81, the fold line 82 and the fold line 84 shown in FIG. 6, and mountain-folded at the fold line 83 and the fold line 85, respectively. By joining the peripheral edges of the container constituent sheet materials 51 (inner bag constituent sheet materials 41 to each other), the container constituent sheet material 51 is formed in a double-structured bag shape.
  • the valley fold is a folding method that is convex toward the back side in FIG. 6, and the mountain fold is a folding method that is convex toward the front side in FIG. That is, the peripheral portions of the inner bag constituent sheet material 41 are joined to each other to form the inner bag sealing portion 42 (see FIG. 1), whereby the inner bag 40 is formed by the inner bag constituent sheet material 41 and the inner bag 40 is formed.
  • a bag-shaped container body 20 that covers the bag 40 is formed.
  • heat sealing, ultrasonic sealing, joining with an adhesive, or the like can be used as a method of joining the inner bag constituent sheet materials 41 to each other.
  • the main 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).
  • the peripheral seal portion 28, the inner bag seal portion 42, and the inner / outer seal portion 43 are collectively referred to as the peripheral seal portion 19 (the peripheral seal portion 19 includes the main body peripheral seal portion 28, the inner bag seal portion 42, and the inner / outer seal portion 43. ). Therefore, in the case of the present embodiment, each of the gusset peripheral peripheral seal piece 45 and the side seal piece 46 includes the main body peripheral edge seal portion 28, the inner bag seal portion 42, and the inner / outer seal portion 43.
  • the present invention is not limited to this example, and the gusset portion peripheral seal piece 45 and the side portion seal piece 46 may be composed of only the main body peripheral edge seal portion 28.
  • the portion on the top gusset constituent sheet portion 39 side of the bending line 85 is the first overlapping portion 31a.
  • the first overlapping portion 31a is arranged so as to overlap one half of the heavenly gusset constituent sheet portion 39 in a state before the non-joining portion 24 is filled with the filler.
  • the portion located on the side farther from the bottom gusset configuration sheet portion 38 than the bending line 86 is the second overlapping portion 32a.
  • the second overlapping portion 32a is arranged so as to overlap the other half portion of the top gusset constituent sheet portion 39 in a state before the non-joining portion 24 is filled with the filler.
  • the container constituent sheet material 51 is formed in a double bag shape, and the sheet material container 100 is obtained.
  • the sheet material container 100 has a flat shape.
  • the non-bonded portion 24 is sealed in.
  • the filler is sealed in the non-joining portion 24 (filling portion 60) (filler filling step).
  • the pressure inside the filling portion 60 is not particularly limited, but 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. In this way, a sheet material container 100 (see FIGS. 1 to 3) in which the filling material is sealed in the filling portion 60 is obtained.
  • the extending portion 25 may remain without being cut off.
  • the content 18 is filled in the accommodating area 17 through the pouring cylinder portion 15a of the spout member 15, and then the cap portion 70 is attached to the spout member 15 to fill the accommodating area 17.
  • a content-filled sheet material container 300 in which an object 18 is enclosed can be obtained.
  • FIG. 8A and FIG. 8B the illustration of the part other than the upper part in the sheet material container 100 is omitted.
  • FIG. 9 shows, as a comparative form, a content-filled sheet material container obtained by a method for manufacturing a content-packed sheet material container in which the step of filling the content 18 in the accommodation area 17 does not include the contact filling step. It is a cross-sectional view along the line corresponding to the line AA in FIG. Further, although not shown, in the comparative mode, the step of filling the accommodation region 17 with the contents 18 is performed only in the same state as shown in FIG. 8 (b).
  • the plug member in the step of filling the accommodation area 17 with the content 18, the plug member is closed by bringing the plug member 210 into contact with the injection port 91. It comprises a contact filling step of filling the contents 18 via 210.
  • the plug member 210 is formed with, for example, a through hole 210a penetrating in the vertical direction. Each of the upper surface and the lower surface of the plug member 210 is formed flat and arranged horizontally. Further, an injection pipe 211 is inserted into the through hole 210a of the plug member 210 in order to inject the content 18 into the accommodating area 17.
  • the inner peripheral surface of the through hole 210a and the outer peripheral surface of the injection pipe 211 are in close contact with each other in a circular manner.
  • the injection pipe 211 is formed, for example, in a cylindrical shape whose axial direction is the vertical direction.
  • the injection tube 211 is connected to a content source (not shown).
  • the cavity of the injection tube 211 constitutes an internal flow path 211a through which the content 18 flows, and the opening on the lower end side of the injection tube 211 constitutes the content supply port 212.
  • the form of the stopper member 210 is not particularly limited, and for example, the stopper member 210 may be a cap member that closes the tip of the spout member 15, a rubber stopper, or a packing. May be good.
  • the material constituting the stopper member 210 is not particularly limited, and may be, for example, a metal material, a hard resin material, or the like.
  • the injection pipe 211 is inserted into the dispensing cylinder portion 15a, and the lower surface of the plug member 210 is in contact with the upper end of the dispensing cylinder portion 15a. Until then, the plug member 210 is moved downward relative to the spout member 15. As a result, the internal flow path 211a of the injection pipe 211 and the accommodation region 17 are mutually conductive with the injection port 91 (opening 15c) closed by the plug member 210.
  • the content 18 is discharged from the content supply port 212 to the accommodation region 17 through the internal flow path 211a.
  • the content 18 can be filled through the plug member 210 with the injection port 91 closed (contact filling step).
  • contact filling step it is possible to prevent gas or the like from easily leaking from the accommodating area 17, so that the content 18 can be filled in a state where the accommodating area 17 is sufficiently expanded.
  • the contents 18 while maintaining a state in which the first planar portion 40a and the second planar portion 40b of the inner bag 40 are sufficiently separated from each other and the volume of the accommodating area 17 is better secured. Can be filled.
  • FIGS. 3 and 9 when the filling step is performed with the injection port 91 closed, and when the filling step is performed with the plug member 210 and the injection port 91 separated from each other. A more sufficient amount of the content 18 can be filled in the containment area 17 as compared to the above.
  • the injection tube 211 and the plug member 210 are moved upward relative to the spout member 15 to allow the injection tube 211 to be dispensed into the injection tube portion 15a. And remove from the containment area 17. Then, by attaching the cap portion 70 to the dispensing cylinder portion 15a, the content 18 is enclosed in the accommodating area 17 (inner bag 40). In this way, the content-filled sheet material container 300 in which the content 18 is filled in the storage area 17 is obtained.
  • the internal pressure of the accommodating region 17 increases in the latter half of the filling step. More specifically, in the filling step, as the filling of the content 18 into the storage region 17 progresses, the internal pressure of the storage region 17 increases due to the content 18. As a result, the volume of the accommodating area 17 is also increased, so that a sufficient amount of the contents 18 can be filled in the accommodating area 17.
  • the filling step it is more preferable to provide a period in which the inside of the accommodating area 17 becomes positive pressure in the filling step. More specifically, in the filling step, it is preferable to include a period in which the volume of the accommodating region 17 becomes larger than the volume of the accommodating region 17 after the completion of the filling step. As a result, a sufficient amount of the content 18 can be filled in the storage area 17, and in the sheet material container 100 having the inner bag 40, wrinkles are more reliably generated in the inner bag 40 and the container body 20. Can be suppressed.
  • the content 18 is filled in a state where the sealing degree of the accommodating area 17 is relatively high, and in the latter half of the filling step, the sealing degree of the accommodating area 17 is relatively low. It is preferable to fill the contents 18 with. By doing so, in the first half of the filling step in which the storage area 17 is not yet sufficiently filled with the amount of the content 18, the content 18 can be filled while the storage area 17 is sufficiently expanded. In the latter part of the filling step in which the content 18 is filled in the storage area 17 to some extent, the internal pressure of the storage area 17 is suitably reduced by letting the gas in the storage area 17 escape to the outside of the sheet material container 100. be able to. As a result, it is possible to sufficiently maintain the state in which the peripheral edges of the container constituent sheet material 51 are joined to each other, and it is possible to fill a sufficient amount of the content 18.
  • the first half of the filling step it is a preferable example to fill the contents 18 with the accommodating area 17 sealed.
  • the content 18 can be filled while the accommodating area 17 is expanded more sufficiently, so that a sufficient amount of the content 18 can be filled.
  • the state in which the accommodation area 17 is sealed here means that the accommodation area 17 is airtightly sealed except for the internal flow path 211a of the injection pipe 211.
  • the contact filling step is performed to maintain the accommodating area 17 in a relatively high degree of sealing
  • the plug member 210 is inserted into the injection port 91. It is also preferable to perform a separation filling step of filling the contents 18 via the plug member 210 in a state where the accommodation region 17 is electrically connected to the outside by being separated from the stopper member 210 (see FIG. 8B). By doing so, in the first half of the filling step, by closing the injection port 91, the content 18 can be filled while sufficiently expanding the accommodating area 17, while the contents continue in the second half of the filling step.
  • the state in which the accommodation region 17 is electrically connected to the outside means that the accommodation region 17 is in a state of being electrically connected to the outside in addition to the internal flow path 211a of the injection pipe 211.
  • the sheet material container 100 has a gap 10a between the inner surface of the container body 20 and the outer surface of the inner bag 40. That is, it has a region where the container body 20 and the inner bag 40 are not joined.
  • the container body 20 and the inner bag 40 are not joined, so that the inner bag 40 moves. It can be suppressed from being bound by the container body 20.
  • a separating step of separating the plug member 210 from the injection port 91 after the completion of the filling step it is possible to prevent the internal pressure of the accommodating region 17 from being excessively increased by letting the gas in the accommodating region 17 escape to the outside of the sheet material container 100. As a result, it is possible to sufficiently maintain the state in which the peripheral edges of the container constituent sheet materials 51 are joined to each other, and it is possible to fill the accommodation region 17 with a sufficient amount of the contents 18.
  • a standby step in which the plug member 210 is brought into contact with the injection port 91 to stand by after the completion of the filling step, and then a separation step is performed. More specifically, as described above, the container body 20 has a bottom gusset 13. Then, the standby step is performed until the bottom gusset 13 is expanded, and then the separation step is performed after the bottom gusset 13 is expanded. By doing so, it is possible to sufficiently maintain the state in which the peripheral edges of the container constituent sheet material 51 are joined to each other sufficiently, and it is possible to fill the accommodating area 17 with a sufficient amount of the contents 18. can.
  • the term after the bottom gusset 13 is expanded here means a state in which the bottom gusset 13 is expanded more than the shape at least when the filling of the content 18 is completed. In other words, it means a state in which the folds formed by the fold lines 81, 82, and 83 shown in FIG. 6 are further extended.
  • the bottom gusset 13 may be unfolded by the weight of the filled content 18 or further introduces gas (eg, air) into the containment region 17 via the injection tube 211 and the pressure of the gas. May be expanded by.
  • the bottom gusset 13 may be developed by both the weight of the filled content 18 and the pressure of the introduced gas.
  • the filling of the content 18 may be completed after applying a stronger pressure to the accommodating region 17 by increasing the flow velocity (injection speed) of the content 18.
  • the deployment of the bottom gusset 13 is further promoted in the standby process.
  • the plug member 210 may be separated from the injection port 91 at a lower speed than when the plug member 210 is brought into contact with the injection port 91 in order to perform the filling step in the present embodiment. By doing so, it is possible to sufficiently maintain the state in which the peripheral edges of the container constituent sheet material 51 are sufficiently joined to each other, and to fill the accommodating area 17 with a sufficient amount of the contents 18. Can be done.
  • the filler filling step is performed prior to the filling step.
  • the accommodating area 17 inner bag 40
  • the filling step by filling the content 18 through the plug member 210 with the injection port 91 closed, each of the container body 20 and the inner bag 40 can be maintained in a sufficiently expanded state. .. Therefore, the occurrence of wrinkles in the inner bag 40 and the container body 20 can be more reliably suppressed, and the storage area 17 can be filled with a sufficient amount of the contents 18.
  • a filling portion 60 is formed in each of the body portion 11, the top gusset 14, and the bottom gusset 13.
  • the accommodating region 17 (inner bag 40) is further expanded at the start of the filling step. ..
  • the filling step by filling the content 18 through the plug member 210 with the injection port 91 closed, each of the container body 20 and the inner bag 40 can be maintained in a sufficiently expanded state. .. Therefore, the occurrence of wrinkles in the inner bag 40 and the container body 20 can be more reliably suppressed, and the storage area 17 can be filled with a sufficient amount of the contents 18.
  • a step of filling the container body 20 in an inflated state by blowing gas into the accommodating area 17 may be performed.
  • the accommodating area 17 inner bag 40
  • the filling step by filling the content 18 through the plug member 210 with the injection port 91 closed, each of the container body 20 and the inner bag 40 can be maintained in a sufficiently expanded state. .. Therefore, the occurrence of wrinkles in the inner bag 40 and the container body 20 can be more reliably suppressed, and the storage area 17 can be filled with a sufficient amount of the contents 18.
  • the state in which the container body 20 is inflated here may be a state in which gas is introduced to some extent into the accommodating area 17, and the inside of the accommodating area 17 may be in a positive pressure state. It may be in a pressure state.
  • FIG. 10 the movement of the content 18 in the filling step is indicated by an arrow A.
  • the outer peripheral surface of the plug member 210 Is in contact with the injection port 91 to block the injection port 91. More specifically, as shown in FIG. 10, in the case of the present embodiment, the outer diameter of the plug member 210 is set to substantially the same size as the diameter of the injection port 91 (inner diameter of the injection cylinder portion 15a).
  • the plug member 210 is inserted into the cavity of the pouring cylinder portion 15a, and the outer peripheral surface of the plug member 210 and the inner peripheral surface of the pouring cylinder portion 15a are in surface contact with each other. Even with such a configuration, it is possible to prevent the gas in the accommodating region 17 from easily leaking to the outside in the filling step. Therefore, a good appearance of the content-filled sheet material container 300 can be realized, and the content 18 can be sufficiently filled in the accommodating area 17.
  • the sheet material container 100 has the spout member 15, and the opening 15c at the tip of the spouting cylinder portion 15a of the spout member 15 constitutes the discharge port and the injection port 91.
  • the sheet material container 100 does not include the spout member 15.
  • the sheet material container 100 does not have the gusset 14 and is above the first main surface portion 20a.
  • Each of the edge portion and the upper edge portion of the second main surface portion 20b constitutes the upper edge portion of the sheet material container 100.
  • a non-joint portion 215 in which the peripheral edges of the inner bag constituent sheet material 41 are partially non-bonded to each other is formed.
  • the non-joining portion 215 constitutes an injection port 91 in which the external space of the sheet material container 100 and the accommodating area 17 are mutually conductive.
  • the upper edge portion of the sheet material container 100 is formed substantially linearly and horizontally arranged except for a portion where the upper recessed portion 217a described later is formed, for example. Therefore, the upper edge of the non-joint portion 215 is also formed substantially linearly and is arranged horizontally.
  • the plug member 210 is inserted into the non-joint portion 215 in the filling step, so that the plug member 210 hits the non-joint portion 215 as the injection port 91. Be touched. As a result, the injection port 91 is blocked. More specifically, the peripheral length of the plug member 210 is set to, for example, substantially twice the width dimension of the non-joint portion 215 (injection port 91). As a result, in a state where the plug member 210 is inserted through the non-joined portion 215, the portion constituting the non-joined portion 215 in the inner bag constituent sheet material 41 and the outer peripheral surface of the plug member 210 are airtight with each other. It is in close contact. By doing so, it is possible to prevent the gas or the like from easily leaking from the accommodating area 17 in the filling step, so that the content 18 can be filled while sufficiently expanding the accommodating area 17.
  • a planned opening portion 216 is formed in a part of the upper part of the sheet material container 100.
  • the planned opening portion 216 is arranged between the upper recessed portion 217a formed in the upper edge portion of the sheet material container 100 and the side recessed portion 217b formed in one side portion of the sheet material container 100. It is configured so that a spout (not shown) is formed by breaking along the opening guide line (not shown) and cutting off a portion on the tip side of the opening guide line.
  • the non-joined portion 215 may be formed at the tip portion of the planned opening portion 216. Also in this case, for example, in the filling step, it is preferable that the injection port 91 is closed by inserting the plug member 210 into the non-joining portion 215. By doing so, it is possible to prevent gas or the like from easily leaking from the accommodating area 17 in the filling step, so that the content 18 can be filled while sufficiently expanding the accommodating area 17.
  • FIGS. 12 (a) and 12 (b) the movement of the content 18 in the filling step is indicated by an arrow A.
  • FIG. 12B an example of the movement of the gas in the accommodating region 17 in the filling step is shown by an arrow B.
  • the method for manufacturing a content-filled sheet material container according to the present embodiment is different from the method for manufacturing a content-filled sheet material container according to the first embodiment and its modifications thereof in the points described below. In other respects, it is the same as the method for manufacturing a content-filled sheet material container according to the first embodiment and its modifications.
  • a step of filling the plug member 210 in the direction of contact with the injection port 91 while urging the plug member 210 with an elastic urging force is performed, and in the contact filling step, the urging force is applied.
  • the plug member 210 comes into contact with the injection port 91.
  • the filling step includes an internal pressure releasing step in which the plug member 210 is separated from the injection port 91 against the urging force due to the increase in the internal pressure of the accommodating region 17.
  • the gas in the accommodating region 17 can be released to the outside of the sheet material container 100 through the injection port 91.
  • the internal pressure of the accommodation region 17 it is possible to suppress an excessive increase in the internal pressure of the accommodation region 17, so that it is possible to sufficiently maintain a state in which the peripheral portions of the container constituent sheet material 51 are joined to each other.
  • the content 18 in the first stage of the step of filling the content 18 into the storage area 17, the content 18 can be filled while the storage area 17 is sufficiently expanded, while the content 18 is stored.
  • the gas in the storage region 17 can be released to the outside of the sheet material container 100, and the internal pressure of the storage region 17 can be suppressed from being excessively increased.
  • the injection port 91 is completely sealed while the plug member 210 is in contact with the injection port 91.
  • the accommodating area 17 and the external space of the sheet material container 100 may be electrically connected to each other.
  • the plug member 210 is, for example, a contact member 210b arranged so as to be in contact with the injection port 91, and the contact member 210b on the injection port 91 side (lower in the case of the present embodiment). ), And further includes the spring member 210c. Further, for example, a support member 214 is arranged on the upper side of the plug member 210. The spring member 210c connects the contact member 210b and the support member 214 to each other.
  • the support member 214 is fixed to, for example, a content supply source, and is configured to receive a reaction force against a force that urges the contact member 210b toward the injection port 91 side (lower in the case of the present embodiment). There is.
  • the support member 214 is formed with, for example, a through hole 214a penetrating in the vertical direction.
  • the contact member 210b is formed with, for example, a through hole 210a penetrating in the vertical direction.
  • the injection pipe 211 is inserted into the through hole 214a and the through hole 210a.
  • the injection tube 211 may be inserted into the cavity of the spring member 210c, or a plurality of spring members 210c may be arranged around the injection tube 211.
  • the force that urges the abutting member 210b upward in the direction in which the abutting member 210b is separated upward from the injection port 91 by the pressure of the accommodating region 17 is applied to the spring member 210c.
  • the lower surface of the contact member 210b is in contact with the injection port 91 according to the urging force, and the injection port 91 is closed by the plug member 210.
  • the force that urges the contact member 210b upward in the direction in which the contact member 210b is separated upward from the injection port 91 by the pressure of the accommodation region 17 is the spring member 210c.
  • the abutting member 210b of the plug member 210 When it becomes larger than the urging force of, the abutting member 210b of the plug member 210 is pushed upward by the force for urging the abutting member 210b upward, and the lower surface of the abutting member 210b resists the urging force. It will be separated from the injection port 91. As a result, the accommodation region 17 and the external space of the sheet material container 100 are mutually conducted via the injection port 91, and the gas in the accommodation region 17 can be released to the external space. Therefore, it is possible to suppress an excessive increase in the internal pressure of the accommodation region 17.
  • the injection port 91 is blocked by the plug member 210, and the above.
  • the force for urging the abutting member 210b upward becomes larger than the urging force for the spring member 210c, the injection port 91 is opened.
  • the contact member 210b may be configured to be slidable in the vertical direction with respect to the injection pipe 211, or the injection pipe 211 is fixed to the contact member 210b.
  • the contact member 210b and the injection pipe 211 may be configured to be slidable in the vertical direction with respect to the support member 214. Further, it is preferable that the outer peripheral surface of the injection pipe 211 is in close contact with the inner peripheral surface of the through hole 210a of the contact member 210b over the entire circumference.
  • the third embodiment will be described with reference to FIG.
  • the movement of the content 18 in the filling step is indicated by an arrow A.
  • an example of the movement of the gas in the accommodating region 17 in the filling step is shown by an arrow B.
  • the method for manufacturing the content-filled sheet material container according to the present embodiment is different from the method for manufacturing the content-filled sheet material container according to the first and second embodiments described above in the following points. In this respect, it is the same as the method for manufacturing a content-filled sheet material container according to the first and second embodiments.
  • an injection pipe 211 for injecting the content 18 and a release pipe 311 for releasing the internal pressure of the accommodating area 17 are inserted into the plug member 210, respectively.
  • the release pipe 311 is provided with a flow rate adjusting mechanism 312. Further, a through hole different from the through hole 210a is formed inside the plug member 210, and the cavity of the through hole is in a state where the plug member 210 is in contact with the injection port 91.
  • An release flow path 241a that conducts the accommodating region 17 and the inner cavity of the release pipe 311 via the cavity of the spout member 15 is configured.
  • one end of the release flow path 241a is conductive with the lumen of the ejection tube portion 15a, and the other end of the release flow path 241a is conductive with the lumen of the release pipe 311.
  • the gas in the accommodating region 17 passes through, for example, the release flow path 241a and the cavity of the release pipe 311 in this order, and the sheet material container 100. It is discharged to the outside of.
  • the release pipe 311 is provided with the flow rate adjusting mechanism 312, by adjusting the set value of the flow rate adjusting mechanism 312, the gas is discharged from the accommodating area 17 through the lumen of the release pipe 311.
  • the amount of gas can be adjusted. That is, the degree of sealing of the accommodation area 17 can be adjusted by the flow rate adjusting mechanism 312.
  • a speed controller flow velocity control valve
  • the content 18 is filled in a state where the tightness of the accommodating area 17 is relatively high by narrowing down the flow rate adjusting mechanism 312. Further, in the latter half of the filling step, the content 18 is filled in a state where the sealing degree of the accommodating region 17 is relatively low by opening the flow rate adjusting mechanism 312. As a result, the content 18 can be filled while maintaining the desired expansion state for the accommodation region 17. Therefore, a sufficient amount of the content 18 can be filled in the accommodation area 17.
  • the desired expansion state of the accommodation region 17 referred to here is that the volume of the accommodation region 17 (internal space of the inner bag 40) is sufficiently secured, and the peripheral edges of the container constituent sheet materials 51 are mutually connected. It means that the state of being joined is well maintained. Further, even if the flow rate adjusting mechanism 312 is throttled to the maximum in the first half of the filling step, the accommodating area 17 is not always in a closed state. For example, a narrow flow path is always formed in the flow rate adjusting mechanism 312. The accommodating area 17 is in a state of being electrically connected to the outside through the flow path. However, the flow rate adjusting mechanism 312 may be able to realize a substantially sealed state of the accommodation area 17.
  • FIGS. 14 (a), 14 (b) and 14 (c) the movement of the content 18 in the filling step is indicated by an arrow A.
  • FIG. 14 (b) is an enlarged view of the region A surrounded by the alternate long and short dash line shown in FIG. 14 (a).
  • FIG. 14B an example of the movement of the gas in the accommodating region 17 in the filling step is shown by an arrow B.
  • the method for manufacturing the content-filled sheet material container according to the present embodiment is different from the method for manufacturing the content-filled sheet material container according to the first to third embodiments described above in the following points. In this respect, it is the same as the method for manufacturing a content-filled sheet material container according to the first embodiment.
  • the contact filling step is performed in a state where a release flow path 241a for releasing the internal pressure of the accommodating region 17 is formed at the contact interface between the plug member 210 and the injection port 91.
  • the filling step it is possible to prevent the internal pressure of the accommodating region 17 from being excessively increased by letting the gas in the accommodating region 17 escape to the outside of the sheet material container 100.
  • the plug member 210 includes an annular member 240 made of silicon rubber or the like. As shown in FIG. 14 (c), a plurality of groove portions 241 extending in the radial direction of the annular member 240 are formed on the lower surface of the annular member 240. Each of the plurality of groove portions 241 penetrates the inner peripheral end of the annular member 240 and the outer peripheral end of the annular member 240 on the lower surface of the annular member 240.
  • the outer diameter of the annular member 240 is larger than the outer diameter of the pouring cylinder portion 15a of the spout member 15, and the inner diameter of the annular member 240 is smaller than the inner diameter of the pouring cylinder portion 15a of the spout member 15.
  • the annular member 240 is arranged coaxially with the dispensing cylinder portion 15a. Therefore, as shown in FIG. 14B, the lower surface of the annular member 240 is in contact with the upper edge of the pouring cylinder portion 15a in a state where the plug member 210 is in contact with the injection port 91.
  • a plurality of release flow paths 241a are formed by the groove portion 241 and the upper edge of the dispensing cylinder portion 15a.
  • the contact interface between the plug member 210 and the injection port 91 is the contact interface between the lower surface of the annular member 240 and the upper edge of the pouring cylinder portion 15a.
  • the gas in the accommodation region 17 passes through the cavity of the ejection cylinder portion 15a and the release flow path 241a in this order and flows out to the external space.
  • the open flow path 241a preferably has a smaller diameter than the internal flow path 211a, for example. By doing so, it is possible to maintain the desired expanded state of the accommodation region 17 (inner bag 40) while allowing the gas in the accommodation region 17 to escape to the outside.
  • FIG. 15A the movement of the content 18 in the filling step is indicated by an arrow A.
  • FIG. 15B is an enlarged view of the region B surrounded by the alternate long and short dash line shown in FIG. 15A.
  • FIG. 15B an example of the movement of the gas in the accommodating region 17 in the filling step is shown by an arrow B.
  • FIG. 15C the plug member 210 and the spout member 15 are selectively shown.
  • the plug member 210 does not have the annular member 240, and a plurality of groove portions 241 are formed on the outer peripheral surface of the plug member 210.
  • a release flow path 241a is formed by the groove portion 241 and the inner peripheral surface of the dispensing cylinder portion 15a.
  • the plurality of groove portions 241 of the plug member 210 are formed so as to penetrate each of the upper surface and the lower surface of the plug member 210 in the vertical direction. ing. As shown in FIGS.
  • the plug member 210 is inserted into the cavity of the dispensing cylinder portion 15a in a state where the plug member 210 closes the injection port 91, and the plug is plugged.
  • the outer peripheral surface of the member 210 and the inner peripheral surface of the pouring cylinder portion 15a are in surface contact with each other.
  • a plurality of release flow paths 241a are formed. That is, in the case of this modification, the contact interface between the plug member 210 and the injection port 91 is the contact interface between the outer peripheral surface of the plug member 210 and the inner peripheral surface of the pouring cylinder portion 15a.
  • the gas in the accommodation region 17 flows out to the external space through the release flow path 241a. As described above, even with the above-mentioned configuration, in the filling step, the gas in the accommodating region 17 can be released to the outside, while the desired expanded state of the accommodating region 17 (inner bag 40) can be maintained.
  • the present invention is not limited to the above-described embodiment, but also includes various modifications, improvements, and the like as long as the object of the present invention is achieved.
  • the cap portion 70 may be a screw cap that does not have the pump portion 72, the support cylinder portion 74, the head portion 73, and the nozzle portion 75, and has an opening / closing lid.
  • the sheet material container 100 may be such that the discharge port is self-supporting in a downward posture (inverted posture), or the body portion 11 may be laid down on the mounting surface. ..
  • the present invention describes this example.
  • the content 18 may be filled in the sheet material container 100 not provided with the inner bag 40 to manufacture the content-filled sheet material container 300.
  • the container body 20 constitutes the storage area 17. That is, in the peripheral seal portion 19, the container main body 20 is formed and the accommodating area 17 is formed by joining a part of the inner film layer 23 of the main body constituent sheet material 21 to each other, so that the main body constituent sheet material 21 is formed. Does not have outside air intake holes 96, 97.
  • the injection port 91 is closed by the plug member 210 as in the above embodiment.
  • the various components of the sheet material container 100 do not have to be individually independent, and a plurality of components are formed as one member, and one component is formed of a plurality of members. It is permissible that one component is part of another, that some of one component overlaps with some of another, and so on.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Bag Frames (AREA)
PCT/JP2020/026446 2020-07-06 2020-07-06 内容物詰めシート材容器の製造方法 Ceased WO2022009276A1 (ja)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2843349B2 (ja) * 1989-02-03 1999-01-06 オーバル機器工業株式会社 フレキシブルバッグの自動空気抜き装置及びカップラの自動着脱装置
JP2010163195A (ja) * 2009-01-18 2010-07-29 Noriko Matsumoto 薬液詰め替え支援具
JP2018144860A (ja) * 2017-03-07 2018-09-20 花王株式会社 シート材容器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2843349B2 (ja) * 1989-02-03 1999-01-06 オーバル機器工業株式会社 フレキシブルバッグの自動空気抜き装置及びカップラの自動着脱装置
JP2010163195A (ja) * 2009-01-18 2010-07-29 Noriko Matsumoto 薬液詰め替え支援具
JP2018144860A (ja) * 2017-03-07 2018-09-20 花王株式会社 シート材容器

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