US20240228144A1 - Sheet member container - Google Patents

Sheet member container Download PDF

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Publication number
US20240228144A1
US20240228144A1 US18/556,132 US202118556132A US2024228144A1 US 20240228144 A1 US20240228144 A1 US 20240228144A1 US 202118556132 A US202118556132 A US 202118556132A US 2024228144 A1 US2024228144 A1 US 2024228144A1
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United States
Prior art keywords
sheet member
filling
extending
bag
film layer
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.)
Pending
Application number
US18/556,132
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English (en)
Inventor
Takahiro Otsuka
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
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Filing date
Publication date
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Assigned to KAO CORPORATION reassignment KAO CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OTSUKA, TAKAHIRO
Publication of US20240228144A1 publication Critical patent/US20240228144A1/en
Pending 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
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • 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
    • B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B3/17—Methods of, or means for, filling the material into the containers or receptacles for filling valve bags
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/008—Standing pouches, i.e. "Standbeutel"
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5877—Non-integral spouts connected to a planar surface of the package wall
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/051—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric
    • B65D81/052—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric filled with fluid, e.g. inflatable elements
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/26—Articles or materials wholly enclosed in laminated sheets or wrapper blanks

Definitions

  • the present invention relates to a sheet member container and a manufacturing method of a contents-containing sheet member container.
  • Patent Document 1 describes a sheet member container having a structure in which a plurality of films are stacked and a filler such as air is contained between layers of the films.
  • the sheet member container of Patent Document 1 includes a container including a containing portion that accommodates contents, a bag body that covers the container (described as a cover body in the same document), a bag-body forming sheet member 21 that constitutes the bag body (described as a cover body forming sheet member in the same document), and an extending piece extending from the container.
  • the bag-body forming sheet member includes an attached portion in which the plurality of film layers are attached together (described as a film region in the same document) and a non-attached region in which a plurality of film layers are partially not attached (described as a filler containing portion in the same document).
  • the filler is contained between layers of the plurality of film layers in the non-attached region to form a filling portion, and the extending piece includes an inlet through which the filler is inputted into the filling portion.
  • Patent Document 1 Japanese Patent No. 6193535
  • FIG. 2 is a back elevation view of the sheet member container according to the exemplary embodiment.
  • FIG. 5 is a plane view illustrating a container forming sheet member including the inner-bag forming sheet member and the bag-body forming sheet member that are stacked on each other.
  • FIGS. 8 A, 8 B and 8 C are views illustrating a series of steps in the manufacturing method of the sheet member container according to the exemplary embodiment, in which FIGS. 8 A and 8 C illustrate a state where a containing portion is degassed, and FIG. 8 B illustrates a state where the containing portion is filled with an inert gas.
  • FIG. 11 A is a cross-sectional view taken along the line A-A illustrated in FIG. 10 B
  • FIG. 11 B is a cross-sectional view taken along the line B-B illustrated in FIG. 10 B .
  • the present invention relates to a sheet member container that makes it possible to more reliably suppress the deterioration (degradation) of the contents, and a manufacturing method of a contents-containing sheet member container.
  • FIGS. 8 A to 9 B illustrate a state of a sheet member container 100 in each manufacturing step with a cross section at a position corresponding to the line A-A illustrated in FIG. 1 .
  • FIGS. 10 A and 10 B illustrate an extending piece 25 in a cross section along an extending direction of the extending piece 25 .
  • the sheet member container 100 is a sheet member container configured to include one or more sheet members including a bag-body forming sheet member 21 including an outer film layer 22 and an inner film layer 23 that are stacked on each other.
  • the sheet member container includes a container main body 20 , the extending piece 25 extending from the container main body 20 , a containing portion 17 that is formed continuously over an interior of the container main body 20 and an interior of the extending piece 25 , the containing portion 17 storing contents, a filling port 15 c that communicates between a portion of the interior of the container main body 20 in the containing portion 17 and an external space of the sheet member container 100 , and a bag body 10 that is made out of the bag-body forming sheet member 21 and that surrounds the containing portion 17 .
  • the bag-body forming sheet member 21 includes a bag-body sealing portion 26 that is a portion in which the outer film layer 22 and the inner film layer 23 are attached together, and a non-attached region 24 in which the outer film layer 22 and the inner film layer are partially not attached, and also includes a filling portion 60 that allows a filler to be contained between layers of the outer film layer 22 and the inner film layer 23 in the non-attached region 24 .
  • the sheet member container 100 includes a peripheral edge sealing portion 42 in which the one or more sheet members are folded and in which peripheral edge portions of a sheet member of an innermost layer included in the one or more sheet members are attached to each other.
  • the peripheral edge sealing portion 42 defines the containing portion 17 , the peripheral edge sealing portion 42 has a portion disposed in a region outside the inlet 25 a in the extending piece 25 , and the containing portion 17 is sealed from the external space except for the filling port 15 c.
  • oxygen is suctioned from the containing portion 17 before the containing portion 17 is filled with the contents 18 .
  • This can suppress deterioration (degradation) of the contents 18 contained in the containing portion 17 due to contact with oxygen.
  • the contents 18 may be a liquid (including a form of paste or a form of foam), or may be a solid (for example, in a form of particles (including a form of grains) or in a form of powder).
  • the contents 18 are, for example, liquid.
  • the viscosity of the contents 18 at, for example, 30° C. preferably falls in a range of equal to or more than 1 mPa ⁇ s and equal to or less than 120000 mPa ⁇ s (measured by a B-type viscometer (for example, viscometer TV-10 or viscometer TVB-10 made by Toki Sangyo Co., LTD. or the like)), and more preferably falls in a range of equal to or more than 1 mPa ⁇ s and equal to or less than 60000 mPa ⁇ s.
  • a B-type viscometer for example, viscometer TV-10 or viscometer TVB-10 made by Toki Sangyo Co., LTD. or the like
  • the positional relationship (up-down relationship or the like) of each constituent component of the sheet member container 100 is described in terms of a positional relationship in a state where the sheet member container 100 is caused to stand independently as illustrated in FIG. 6 , unless otherwise specified.
  • the positional relationship in this description does not necessarily match the positional relationship at the time of using or manufacturing the sheet member container 100 .
  • a widthwise dimension of the extending piece 25 is, for example, substantially constant in an up-down direction.
  • the widthwise dimension of the extending piece 25 may vary depending on a position in the up-down direction.
  • the filling portion 60 includes a first extending filling portion 66 disposed on one side and a second extending filling portion 67 disposed on the other side with the containing portion 17 of the interior of the extending piece 25 being disposed between the extending filling portions in a thickness direction of the extending piece 25 .
  • the inlet 25 a is formed in a portion of the outer film layer 22 that defines at least one of the first extending filling portion 66 and the second extending filling portion 67 .
  • 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 forming sheet member 41 also has a layer structure including a plurality of resin layers.
  • the inner-bag forming sheet member 41 is stacked on the bag-body forming sheet member 21 , and as illustrated in FIG. 5 , a peripheral edge portion of the inner film layer 23 and the peripheral edge portion of the inner-bag forming sheet member 41 are attached to each other, and a peripheral edge portion of the outer film layer 22 and the peripheral edge portion of the inner film layer 23 are attached to each other. Consequently, the bag-body forming sheet member 21 and the inner-bag forming sheet member 41 constitute the container forming sheet member 51 .
  • peripheral edge sealing portion 52 As for a method of forming the peripheral edge sealing portion 52 , as one example, heat sealing, ultrasonic sealing, attaching with adhesive, or the like may be used.
  • the bag-body forming sheet member 21 includes, for example, a first sheet portion 31 that is a portion that constitutes the first main surface portion 20 a, a second sheet portion 32 that is a portion that constitutes the second main surface portion 20 b, a bottom forming sheet portion 38 that is a portion that constitutes the bottom portion 13 , and a top forming sheet portion 39 that is a portion that constitutes the top portion 14 .
  • the first extending portion 22 a includes, for example, the outer film layer 22 and the inner film layer 23 and extends outward from the top forming sheet portion 39 .
  • the second extending portion 22 b includes, for example, the outer film layer 22 and the inner film layer 23 and extends outward from the second sheet portion 32 .
  • the first extending portion 22 a and the second extending portion 22 b are formed, for example, into the same shape with the same dimension as each other.
  • the planar shape of each of the first extending portion 22 a and the second extending portion 22 b is not specifically limited, and each extending portion is formed, for example, into a substantially rectangular shape that is long in one direction.
  • the inner-bag forming sheet member 41 is formed into the same shape as that of the bag-body forming sheet member 21 .
  • the third extending portion 46 a is a portion that corresponds to the first extending portion 22 a (portion that overlaps with the first extending portion 22 a ).
  • the fourth extending portion 46 b is a portion that corresponds to the second extending portion 22 b (portion that overlaps with the second extending portion 22 b ).
  • the extending piece 25 is formed by attaching respective peripheral edge portions of the first extending portion 22 a to the fourth extending portion 46 b to each other.
  • the respective peripheral edge portions of the first extending portion 22 a and the third extending portion 46 a are attached to each other, the respective peripheral edge portions of the second extending portion 22 b and the fourth extending portion 46 b are attached to each other, and the respective peripheral edge portions of the third extending portion 46 a and the fourth extending portion 46 b are also attached to each other.
  • FIG. 4 illustrates a seal boundary line 41 a of the inner-bag forming sheet member 41 with a double-dashed chain line for the sake of convenience.
  • the seal boundary line 41 a is a boundary line between a region where the inner-bag forming sheet member 41 is attached (sealed) to the bag-body forming sheet member 21 and another region in the inner-bag forming sheet member 41 , and is also a boundary line between a region where the inner-bag forming sheet members 41 are attached to each other and another region in the inner-bag forming sheet member 41 , when the sheet member container 100 is formed by using the container forming sheet member 51 .
  • a position of the seal boundary line 41 a and a position of the seal boundary line 21 c correspond to each other (overlap with each other).
  • the plate portion 15 b of the spout member 15 is attached, for example, to an inner surface of the portion of the inner-bag forming sheet member 41 that overlaps with the top forming sheet portion 39 .
  • the outlet cylinder portion 15 a protrudes to an outer surface side of a sheet through the insert hole 41 b of the inner-bag forming sheet member 41 and the insert hole 21 a of the top forming sheet portion 39 .
  • the rising of the piston member 96 b brings the state where the second inflow portion 961 b of the piston member 96 b and the protrusion 941 of the first member 94 are in contact with each other, the internal space of the second member 95 and the internal flow path 961 a are isolated from each other, and the containing portion 17 and the external space are further isolated from each other. That is, in the case of this exemplary embodiment, an operation of closing the operating portion 92 is the canceling of the pressing operation. The closing operation raises the second inflow portion 961 b of the piston member 96 b to a top dead center side above the protrusion 941 of the first member 94 .
  • the above described sheet member container 100 is prepared. More specifically, the peripheral edge portions of the container forming sheet member 51 (inner-bag forming sheet members 41 ) are attached to each other, in a state where a folding line 81 , a folding line 82 and a folding line 84 , illustrated in FIG. 5 , of the container forming sheet member 51 are folded as valley fold, and a folding line 83 and a folding line 85 are folded as mountain fold.
  • the container forming sheet member 51 is formed into a bag shape with a two-layer structure.
  • the valley fold means a way of folding in which it protrudes toward the side going away from the viewer of FIG. 5
  • the mountain fold means a way of folding in which it protrudes toward the viewer of FIG. 5 .
  • the peripheral edge portions of the inner-bag forming sheet member 41 are attached to each other to form the peripheral edge sealing portion 42 .
  • the inner bag 40 is formed. This forms the container main body 20 having the bag shape that covers the inner bag 40 .
  • the container forming sheet member 51 is formed into a double bag shape to obtain the sheet member container 100 .
  • the sheet member container 100 has a flat shape (see FIG. 8 A ).
  • the main-body peripheral edge sealing portion 28 , the peripheral edge sealing portion 42 and the inner-outer sealing portion 43 are arranged at positions that correspond to one another (positions that overlap with one another).
  • the main-body peripheral edge sealing portion 28 , the peripheral edge sealing portion 42 and the inner-outer sealing portion 43 are collectively referred to as a peripheral edge sealing portion 19 (the peripheral edge sealing portion 19 includes the main-body peripheral edge sealing portion 28 , the peripheral edge sealing portion 42 and the inner-outer sealing portion 43 ).
  • first overlap portion 31 a a portion closer to a side of the top forming sheet portion 39 than the folding line 85 is a first overlap portion 31 a.
  • the first overlap portion 31 a is disposed to overlap with one half of the top forming sheet portion 39 in a state before the non-attached region 24 is filled with the filler.
  • a portion located farther from a side of the bottom forming sheet portion 38 than a folding line 86 is a second overlap portion 32 a .
  • the second overlap portion 32 a is disposed to overlap with the other half of the top forming sheet portion 39 in the state before the non-attached region 24 is filled with the filler.
  • each of the peripheral edge sealing portion 42 and the bag-body sealing portion 26 is formed continuously along a peripheral edge portion of the extending piece 25 .
  • a portion of the peripheral edge sealing portion 42 on a front side of the extending piece 25 is connected to a portion of the peripheral edge sealing portion 42 in the top forming sheet portion 39 .
  • the peripheral edge sealing portion 42 on the front side of the extending piece 25 is formed avoiding the interfacial connecting portion 65 a.
  • a portion of the peripheral edge sealing portion 42 on a back side of the extending piece 25 is connected to a portion of the peripheral edge sealing portion 42 in the second sheet portion 32 .
  • the peripheral edge sealing portion 42 on the back side of the extending piece 25 is formed avoiding the interfacial connecting portion 65 b.
  • a portion of the bag-body sealing portion 26 on the front side of the extending piece 25 is connected to a portion of the bag-body sealing portion 26 in the top forming sheet portion 39 .
  • the bag-body sealing portion 26 on the front side of the extending piece 25 is formed avoiding the interfacial connecting portion 65 a .
  • a portion of the bag-body sealing portion 26 on the back side of the extending piece 25 is connected to a portion of the bag-body sealing portion 26 in the second sheet portion 32 .
  • the bag-body sealing portion 26 on the back side of the extending piece 25 is formed avoiding the interfacial connecting portion 65 b.
  • valve part 90 is mounted to the spout member 15 of the sheet member container 100 formed into the bag shape.
  • the sheet member container 100 including the valve part 90 mounted to the filling port 15 c can be prepared, in which the valve part 90 can be switched to the opened state where the containing portion 17 communicates to the external space through the filling port 15 c, and to the closed state where the containing portion 17 and the external space are isolated from each other.
  • a preliminary step of performing, for the containing portion 17 , at least one of a degassing treatment, and a purging treatment using an inert gas is performed.
  • the purging treatment and the degassing treatment are performed at least once in this order. More specifically, in the preliminary step, for example, a degassing treatment, a purging treatment and another (second) degassing treatment are performed in this order.
  • valve part 90 when executing the degassing treatment, the valve part 90 is switched to the opened state by the operation of pressing the piston member 96 b.
  • a tube member 210 is inserted into the piston member 96 b, and the tube member 210 is relatively lowered to the spout member 15 until the second inflow portion 961 b and the protrusion 941 of the first member 94 are separated from each other. Thereby, a lumen of the tube member 210 and the containing portion 17 mutually conduct. In this state, oxygen retained in the containing portion 17 is suctioned (degassed) through the tube member 210 . Thereby, as illustrated in FIG. 8 A , the first surface 40 a and the second surface 40 b of the inner bag 40 are sufficiently in close contact with each other, and the containing portion 17 is collapsed (deflated).
  • the valve part 90 is switched to the opened state in the same manner as when executing the degassing treatment.
  • the containing portion 17 is filled with an inert gas (for example, nitrogen) through the tube member 210 .
  • an inert gas for example, nitrogen
  • the inert gas flows through the lumen of the tube member 210 and into the containing portion 17 through the filling port 15 c.
  • the containing portion 17 is filled with the inert gas, and the inner bag 40 is sufficiently expanded.
  • the degassing treatment is performed again by suctioning a gas containing the inert gas contained in the interior of the containing portion 17 through the tube member 210 .
  • the first surface 40 a and the second surface 40 b of the inner bag 40 are sufficiently in close contact with each other, and the containing portion 17 is collapsed.
  • the inert gas when performing the purging treatment, the inert gas can be distributed to a region adjacent to the filling portion 60 in the containing portion 17 . Therefore, the oxygen retained in the containing portion 17 can be diluted by the inert gas, and hence deterioration (degradation) of the contents 18 can be suppressed.
  • a contents filling step of filling the containing portion 17 with the contents 18 is performed.
  • the filling with the contents 18 is started from a state where the containing portion 17 is collapsed by the degassing treatment.
  • the contents filling step is performed in a state where the valve part 90 is opened in the same manner as in the purging treatment and the degassing treatment.
  • a tube member inserted into the piston member 96 b may be the same as the tube member 210 used in the degassing treatment and the purging treatment, or may be a separate member.
  • the filler filling step of putting the filler between the layers of the outer film layer 22 and the inner film layer 23 in the non-attached region 24 is performed.
  • the filler is inputted into the non-attached region 24 through the inlet 25 a formed in the extending piece 25 .
  • the extending piece 25 is disposed between a jig member 251 and a filling nozzle 252 disposed below the jig member 251 .
  • a space (opposed space) between the jig member 251 and the filling nozzle 252 is larger in the up-down direction than in the state illustrated in FIG. 10 A .
  • the jig member 251 and the filling nozzle 252 are brought close to each other in the up-down direction to obtain the state illustrated in FIG. 10 A .
  • a lower surface of the jig member 251 is, for example, in contact with the first extending filling portion 66 , and an upper surface of the filling nozzle 252 is opposed to the second extending filling portion 67 .
  • a lumen of the filling nozzle 252 constitutes an internal flow path 253 through which the filler flows, and in the up-down direction, the inlet 25 a and an opening in the filling nozzle 252 on a tip side are opposed to each other.
  • an annular silicon ring (not shown in the drawings) is provided at a tip of the filling nozzle 252 .
  • the extending piece 25 includes portions of the inner-bag forming sheet member 41 (the third extending portion 46 a and the fourth extending portion 46 b ). Thereby, rigidity of the extending piece 25 can be sufficiently obtained, which makes it easy to dispose the extending piece 25 so that the lower surface of the jig member 251 abuts on the first extending filling portion 66 .
  • the filler is injected through an opening in the internal flow path 253 of the filling nozzle 252 on the tip side and further sprayed into the inlet 25 a to fill the filling portion 60 . More particularly, the filler sprayed into the inlet 25 a flows through the second extending filling portion 67 , the second filling portion 62 , the third filling portion 63 , the first filling portion 61 , and the fourth filling portion 64 in this order, to flow into the first extending filling portion 66 . At this time, the extending piece 25 is displaced upward by spraying the filler, which is regulated by the jig member 251 .
  • the thickness dimension of each of the first extending filling portion 66 and the second extending filling portion 67 herein is a separation distance between the outer film layer 22 and the inner film layer 23 in the thickness direction of the extending piece 25 .
  • the inlet 25 a is disposed at a central position of the outer film layer 22 in the width direction of the second extending filling portion 67 .
  • the inlet 25 a is located in a central portion of expansion in the second extending filling portion 67 during the filling of the filling portion 60 with the filler. Therefore, the filling portion 60 can be more smoothly filled with the filler.
  • a pressure inside the filling portion 60 is not particularly limited, but is preferably higher than atmospheric pressure, and may be, for example, equal to or more than 10 kPa and equal to or less than 500 kPa (gauge pressure).
  • the filling portion 60 filled with the filler is sealed, and the containing portion 17 is sealed except for the filling port 15 c.
  • a communicating portion (interfacial connecting portion 65 a ) between the first extending filling portion 66 and the fourth filling portion 64 is closed, and a communicating portion (interfacial connecting portion 65 b ) between the second extending filling portion 67 and the second filling portion 62 is closed.
  • the containing portion sealing seal 29 b is formed in the interfacial connecting portions 65 a and 65 b. Therefore, with the containing portion sealing seal 29 b, the inner-bag forming sheet members 41 in the interfacial connecting portion 65 a are attached to each other, and the inner-bag forming sheet members 41 in the interfacial connecting portion 65 b are attached to each other.
  • the extending piece 25 may be cut off in the vicinity of each of the filling portion sealing seal 29 a and the containing portion sealing seal 29 b, and each of the filling portion sealing seal 29 a and the containing portion sealing seal 29 b may be entirely retained in the container main body 20 .
  • the contents-containing sheet member container 300 can be obtained in which the filling portion 60 is filled with the filler (see FIG. 6 ).
  • the extending piece 25 may be retained without being cut off.
  • the cap part 70 includes, for example, a mounting portion 71 that is a cylindrical portion having an internal thread shape and detachably screwed into the outlet cylinder portion 15 a , a pump portion 72 fixed to the mounting portion 71 , a dip tube 77 extending downward from the pump portion 72 , and a head portion 73 that is held in the pump portion 72 so that the portion can be raised and lowered with respect to the pump portion 72 .
  • a mounting portion 71 that is a cylindrical portion having an internal thread shape and detachably screwed into the outlet cylinder portion 15 a
  • a pump portion 72 fixed to the mounting portion 71
  • a dip tube 77 extending downward from the pump portion 72
  • a head portion 73 that is held in the pump portion 72 so that the portion can be raised and lowered with respect to the pump portion 72 .
  • the forming of the peripheral edge sealing portion 42 can inhibit a portion of the extending piece 25 that does not overlap with a region where the bag-body sealing portion 26 is formed from being reheated. That is, heat history can be reduced, and hence strength of the bag-body sealing portion 26 in the extending piece 25 can be obtained.
  • the forming of the peripheral edge sealing portion 42 can inhibit a substantially entire region where the bag-body sealing portion 26 is formed in the extending piece 25 from being reheated. Therefore, heat history can be further reduced, and hence strength of the bag-body sealing portion 26 in the extending piece 25 can be sufficiently obtained.
  • a containing portion 17 is sealed from an external space except for a filling port 15 c, and hence the containing portion 17 can be sufficiently degassed by suctioning through the filling port 15 c before putting the filler into a filling portion 60 . This can more reliably inhibit the contents 18 contained in the containing portion 17 from being deteriorated (degraded) due to contact with oxygen retained in the containing portion 17 .
  • a contents filling step is performed so that a liquid level of contents 18 after the filling in the contents filling step is a position lower than a containing portion sealing seal 29 b (region where the containing portion sealing seal 29 b is formed in an extending piece 25 ). More preferably, the contents filling step is performed in a state where the sheet member container 100 is tilted so that the liquid level of the contents 18 after the filling in the contents filling step is the position lower than the containing portion sealing seal 29 b.
  • the contents 18 can be inhibited from being interposed between layers of innermost layer sheet members (inner-bag forming sheet members 41 ) in the region where the containing portion sealing seal 29 b is formed in the extending piece 25 . Therefore, in the region where the containing portion sealing seal 29 b is formed in the extending piece 25 , the inner-bag forming sheet members 41 can be more reliably attached to each other, so that the containing portion 17 can be suitably sealed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
US18/556,132 2021-04-26 2021-04-26 Sheet member container Pending US20240228144A1 (en)

Applications Claiming Priority (1)

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PCT/JP2021/016664 WO2022230025A1 (ja) 2021-04-26 2021-04-26 シート材容器

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US20240228144A1 true US20240228144A1 (en) 2024-07-11

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US (1) US20240228144A1 (https=)
EP (1) EP4310021A4 (https=)
JP (1) JP7480431B2 (https=)
CN (1) CN117242016A (https=)
WO (1) WO2022230025A1 (https=)

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EP4310021A1 (en) 2024-01-24
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WO2022230025A1 (ja) 2022-11-03
JPWO2022230025A1 (https=) 2022-11-03
JP7480431B2 (ja) 2024-05-09

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