WO2022044305A1 - 包装用部材及び包装用部材の製造方法 - Google Patents

包装用部材及び包装用部材の製造方法 Download PDF

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Publication number
WO2022044305A1
WO2022044305A1 PCT/JP2020/032793 JP2020032793W WO2022044305A1 WO 2022044305 A1 WO2022044305 A1 WO 2022044305A1 JP 2020032793 W JP2020032793 W JP 2020032793W WO 2022044305 A1 WO2022044305 A1 WO 2022044305A1
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WO
WIPO (PCT)
Prior art keywords
blank material
container
compression
packaging member
lid
Prior art date
Application number
PCT/JP2020/032793
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
朗 高野
Original Assignee
株式会社Ky7
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 株式会社Ky7 filed Critical 株式会社Ky7
Publication of WO2022044305A1 publication Critical patent/WO2022044305A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/02—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape
    • B65D3/06—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape essentially conical or frusto-conical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/28—Other details of walls
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/16—Snap-on caps or cap-like covers
    • B65D41/18—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/08—Removable lids or covers having a peripheral flange fitting over the rim of the container
    • 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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/10—Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/002—Construction of rigid or semi-rigid containers having contracted or rolled necks, having shoulders

Definitions

  • the present invention relates to a packaging member and a method for manufacturing the packaging member.
  • the present invention particularly relates to a packaging member having an annular side wall and a method for manufacturing the packaging member.
  • a packaging member such as a flexible container for accommodating beverages such as coffee and contents such as delicatessen, and a lid for such a container
  • a packaging member made of a paper-based material has been proposed.
  • Packaging members such as containers and lids have an annular side wall around the canopy and bottom material.
  • annular side wall one obtained from a blank material made of a strip-shaped piece of paper or the like has been proposed.
  • the blank material is rolled into an annular shape and two ends separated along the longitudinal direction of the blank material are overlapped to form an overlapping portion, and the ends are joined to each other at the overlapping portion to form a joint portion. Then, the side wall is obtained.
  • the airtightness between the container and the lid is impaired even in the container to which the lid is attached. If the airtightness between the container and the lid is impaired, the contents may unintentionally spill out from the container to which the lid is attached. Further, at the position of the end portion of the blank material, the end face tends to be exposed, and when the contents of the container are liquid, the liquid easily permeates from the end face.
  • Patent Document 1 discloses a technique for filling a stepped portion by applying a resin to the stepped portion.
  • An object of the present invention is to provide a packaging member having excellent airtightness and improved penetration of the contents from the end face of the blank material.
  • the present invention (1) It has an annular side wall provided with a joint portion in which two ends of a blank material made of a paper-based material are overlapped with each other, and at least one of the end portions is the blank material.
  • a packaging member that forms a compressed part that is compressed and has a shape that tapers toward the tip.
  • the container Used as a container, the container has an annular curl portion formed in an outer winding along the upper end of the side wall and an opening surrounded by the curl portion, and the curl portion has an opening.
  • the gist thereof is a method for manufacturing a packaging member, which comprises a side wall forming step of forming an annular side wall by forming a joint portion by joining the end portions to each other at the overlapping portion.
  • At least one of the ends of the blank material forms a compressed portion in which the blank material is compressed, and the shape is tapered toward the tip, so that the packaging member has excellent airtightness.
  • its manufacturing method can be provided.
  • a packaging member having excellent airtightness it is possible to prevent the contents from unintentionally spilling out from the container to which the lid is attached.
  • the end portion of the blank material is compressed and the area of the end face of the end portion is suppressed, the permeation of the contents from the end portion can be improved.
  • the compression unit can be realized by a physical process called compression, it is possible to suppress the need to consider the elution of components contained in the resin, which is a concern when a chemical substance such as a resin is newly used. It becomes.
  • FIG. 1 is a perspective view for explaining an embodiment of the first embodiment.
  • FIG. 2 is a vertical cross-sectional view showing a state of the vertical cross section of the line AA of FIG.
  • FIG. 3 is a cross-sectional view for explaining an embodiment of the first embodiment. Further, it is a partially enlarged view showing a state in which the area surrounded by the alternate long and short dash line is enlarged.
  • 4 (a) to 4 (g) are views showing an example of the state of the overlapping portion and the joint portion.
  • FIG. 5 is a perspective view for explaining an embodiment of the second embodiment.
  • FIG. 6 is a perspective view for explaining a modified example of the second embodiment.
  • FIG. 7 is a plan view (top view) for explaining a modification of the second embodiment.
  • FIG. 1 is a perspective view for explaining an embodiment of the first embodiment.
  • FIG. 2 is a vertical cross-sectional view showing a state of the vertical cross section of the line AA of FIG.
  • FIG. 3 is a
  • FIG. 8 is a partially enlarged view of a portion of the region X surrounded by the alternate long and short dash line of FIG. 7.
  • FIG. 9 is a cross-sectional view showing an example of a state in which the lid body according to the first embodiment is attached to the packaging member (container) according to the modified example according to the second embodiment.
  • FIG. 10A is a cross-sectional view showing a state in which the lid is attached to the packaging member (container) of the second embodiment.
  • FIG. 10B is an enlarged view of a main part showing a state in which a lid is attached to the packaging member (container) of the second embodiment.
  • FIG. 11A is a cross-sectional view showing a state in which the packaging member (cover body) of the first embodiment is attached to the container.
  • FIG. 11B is an enlarged view of a main part showing a state in which the packaging member (cover body) of the first embodiment is attached to the container.
  • FIG. 12 is a process sectional view for explaining an embodiment of the method for manufacturing a packaging member according to the first embodiment.
  • FIG. 13 is a cross-sectional view for explaining a step of forming a compression portion at an end portion of the blank material.
  • 14 (a) and 14 (b) are process sectional views for explaining another embodiment of the method for manufacturing a packaging member according to the first embodiment.
  • the Z-axis direction is the vertical direction (the upper side is the + Z direction and the lower side is the ⁇ Z direction).
  • the X-axis direction is the front-back direction (+ X direction on the front side, -X direction on the back side)
  • the Y-axis direction is the left-right direction (+ Y direction on the right side, -Y direction on the left side). ..
  • the relative magnitude ratio of the size and thickness of each layer shown in each of FIGS. 1 to 14 is described for convenience, and does not limit the actual magnitude ratio.
  • the "packaging member” refers to a member that can be used for the purpose of accommodating various articles such as food and drink as contents.
  • the packaging member is a concept that includes a container, a lid, and other packaging bodies. Therefore, the packaging member may be used as either a container or a lid.
  • the description will be given based on one embodiment in the case where the packaging member is used as a lid. In the second embodiment, the description will be given based on one embodiment in the case where the packaging member is used as a container.
  • the packaging member according to the first embodiment of the present invention is the lid body 1.
  • the lid 1 includes a canopy 2 and a wall material 3.
  • the lid 1 can be attached to, for example, the opening edge of the bottomed container T having an opening on the upper end side.
  • a container T having flexibility in the opening edge portion is particularly preferably used as the container T.
  • the canopy 2 has a top surface portion 4 that covers the opening of the container T and a rising portion 5 that rises upward from the outer peripheral edge of the top surface portion 4 in a state of being attached to the container T.
  • the rising portion 5 is joined to the inner peripheral surface side of the wall material 3 at a predetermined position above the lower end of the wall material 3 (the lower end toward the container T side).
  • the shape of the top surface portion is not particularly limited, and may be determined according to the shape of the container T. Examples of the shape of the top surface portion 4 include an elliptical shape, a rectangular shape, a triangular shape, a polygonal shape, and the like, in addition to the circular shape as shown in FIGS. 1 to 3.
  • Examples of the material constituting the canopy 2 include pulp-based materials, fiber-based materials, synthetic resin-based materials, metal-based materials, wood-based materials, glass-based materials, and composites and laminates thereof.
  • the canopy 2 can be obtained, for example, by molding a blank material for forming a canopy, which is formed by punching a raw material.
  • the material of the raw material for forming the canopy is not limited, but for example, a paper material, a woven fabric material, a non-woven fabric material, a resin film / sheet material, a metal foil such as aluminum foil, a wood foil, etc. are appropriately used. It is selectable. From the viewpoint of environmental load and ease of handling, it is preferable that the raw material for canopy formation is a paper-based material.
  • Paper-based materials include so-called papers manufactured by laminating plant fibers and other fibers, as well as chemical fiber papers, synthetic papers, water-resistant papers, coated papers, alternative papers, sheepskin papers, woolen papers, and glass fiber papers. , Stone paper, porcelain paper, etc.
  • the non-woven fabric include so-called air-laid sheets formed into a sheet by combining crushed pulp piled up by an air flow, a pulp-based material, and a non-woven fabric of fibers such as a natural fiber material and a synthetic fiber.
  • the resin film / sheet material include synthetic resin, natural resin, and biodegradable resin film and sheet, and among them, biodegradable resin film and sheet can be preferably used.
  • the lid 1 has a wall material 3 as a side wall of the packaging member.
  • the wall material 3 is formed in an annular shape.
  • the wall material 3 has an overlapping portion 6 in which two ends 31 and 32 of a blank material 30 for forming a wall material having a predetermined shape are overlapped, and a joint portion 7 in which the overlapping portions 6 join the ends 31 and 32 to each other. And prepare.
  • a paper-based material is used as the raw material for forming the blank material 30 for forming the wall material. Therefore, as the blank material 30, a paper-based material is used.
  • a paper-based material various paper-based materials as described above for the raw material for forming the canopy can be appropriately used.
  • a paper-based material formed in a fan shape is used as a raw material for forming a wall material, and two ends of the paper-based material separated along the circumferential direction are overlapped with each other and overlapped. Is formed.
  • the end portions 31 and 32 referred to here refer to portions from the edge of the blank material 30 to a predetermined position facing inward.
  • the joint portion 7 is formed by joining two end portions 31, 32 to each other at least a part of the overlapped portion 6, preferably the entire overlapped portion 6.
  • Examples of the method for bonding the two ends 31 and 32 include a method such as an adhesive, a hot melt adhesive, a two-component adhesive, heat sealing, and ultrasonic bonding, but ultrasonic bonding is preferable.
  • the joint portion 7 is formed in a formed portion of the compression portion 8 described later or a portion including the formed portion. In this case, the entire compression portion 8 can be used for the joint portion 7. In the examples of FIGS. 1 to 3 and 4 (b), the joint portion 7 is formed in the formed portion of the compression portion 8. It should be noted that this does not prohibit the joint portion 7 from being formed in a part of the formed portion of the compression portion 8.
  • a compression portion 8 is formed at at least one end (at least one of the end 31 and the end 32) of the blank material 30 for forming the wall material.
  • the wall material 3 to be the side wall is located on the inner peripheral surface 3a side.
  • the end portion 31 of the side is the compression portion 8, and the compression portion 8 is exposed on the inner peripheral surface 3a of the wall material 3.
  • the end portion 32 located on the outer peripheral surface 3b side in the state of the wall material 3 serving as the side wall is the uncompressed portion.
  • FIG. 4B is a schematic drawing of the portion including the overlapping portion 6 in FIG. 3 that is extracted.
  • the compression portion 8 may be formed on a part of the end portion 31 forming the overlapping portion 6, but as shown in FIG. 4B, the compression portion 8 is formed over the entire end portion 31 forming the overlapping portion 6. It is preferably formed. In this case, the thickness change of the blank material 30 becomes more gradual at the position of the end portion 31 of the blank material 30, and the adhesion to the container T can be further improved.
  • the compression portion 8 is a portion formed by compressing the blank material 30 for forming the wall material.
  • the compression portion 8 is formed by compressing at least one of the end portion 31 and the end portion 32 of the blank material 30 for forming the wall material, as described above.
  • a method of compressing the blank material 30 for forming the wall material for example, a pressing process or the like can be mentioned.
  • the press process include a hot press process and a press process in a humidified state.
  • the hot press treatment may be carried out under humidified conditions or under non-humidified conditions. Among such press processes, the hot press process is preferable.
  • the thickness of the end portion 31 of the blank material 30 for forming the wall material can be easily reduced, and the thinner the thickness of the blank material 30, the blank material for forming the wall material. It is possible to form a state in which the density of 30 is improved.
  • the degree of compression of the blank material 30 for forming the wall material increases toward the tip 31a of the end portion 31. This is because when at least one end 31 of the wall material forming blank material 30 is compressed, the wall material forming blank material 30 is pressed with a stronger force at a position closer to the tip end 31a of the end portion 31. Can be concretely realized with. Further, in the case of the example of FIG. 3, the density of the tip 31a of the end portion 31 in the blank material 30 for forming the wall material is increased. Further, the area of the end face of the tip 31a of the end 31 in the blank material 30 for forming the wall material can be reduced.
  • the end portion 31 forming the compression portion 8 has a shape tapered toward the tip 31a from the position corresponding to the base end of the compression portion 8 (blank).
  • the thickness of the material 30 becomes thinner toward the tip 31a).
  • the state of the tapered shape of the end portion 31 is not particularly limited, but in the examples of FIGS. 1 to 3, as shown in FIG. 4 (b), one of the blank materials is provided at the end portion of the blank material 30.
  • an inclined surface 9a is formed in a region corresponding to the compression portion 8 (the end portion 31 on which the compression portion 8 is formed), and a region corresponding to the compression portion 8 in the other main surface 30b. Is a flat surface 9b.
  • the above-mentioned one main surface 30a of the blank material 30 is the surface to be the inner peripheral surface 3a of the wall material 3
  • the above-mentioned other main surface 30b of the blank material 30 is the wall material 3. It is a surface that becomes the outer peripheral surface 3b.
  • an inclined plane 10a is formed as the inclined surface 9a. As shown in FIG.
  • a curved surface 10b that is inclined downward toward the tip 31a is formed as the inclined surface 9a in the region of one main surface 30a of the blank material 30 corresponding to the compression portion 8. You may.
  • a convex curved surface is formed as the curved surface 10b to be formed, but a concave curved surface may be formed as the curved surface 10b.
  • the tip 31a of the end portion 31 forming the compression portion 8 is preferably in a compressed state as much as possible as shown in FIG. 4 (b) rather than the state shown in FIG. 4 (f). Further, when the tip 31a has an end face, the shape may be a curved surface.
  • the inclined surface 9a may be formed in the region corresponding to the compression portion 8 on both the main surfaces 30a and 30b of the blank material 30.
  • the external shape of the wall material 3 is not particularly limited and may be formed in a tubular shape having the same diameter in the vertical direction, but as shown in FIGS. 1 to 3, the side wall formed by the wall material 3 is upward. It is preferable to form a tubular shape in which the inner diameter decreases downward from the top, and the mouth portion of the container T whose inner diameter at the lower end portion of the lid 1 is closed by the lid 1 is formed. It is more preferable that the upper end portion is formed so as to be slightly smaller than the outer diameter.
  • a paper-based material is easily deformed in the thickness direction such as bending, but has a property of being difficult to be deformed in a plane direction orthogonal to the thickness direction.
  • the canopy 2 and the wall material 3 are formed like the lid 1 according to the present embodiment, the canopy 2 is easily deformed in the bending direction and the wall material 3 has the circumferential direction. It can be made difficult to deform.
  • the lid 1 having a structure in which the side wall is formed in a cylindrical shape whose inner diameter decreases downward and the inner diameter of the lower end portion is slightly smaller than the outer diameter of the mouth portion of the container T, the container 1 is formed.
  • the canopy 2 can be bent and deformed with respect to T, and the mouth portion of the container T can be deformed and fitted.
  • the lid body 1 can be smoothly attached to the container T. Further, since the lid 1 is formed with the compression portion 8 to greatly reduce the thickness of the overlapping portion 6 inside the side wall, the inner surface side of the side wall of the lid 1 and the mouth portion of the container T when the lid is closed. It is also possible to greatly improve the airtightness between and. Further, the lid 1 is formed so that the inner diameter of the lower end portion is smaller than the outer diameter of the mouth portion of the container T, and the gap between the lid 1 and the container T at the time of closing the lid is reduced.
  • the container T is unexpectedly dropped with the lid 1 attached. Even in this case, it is possible to reduce the situation where the lid 1 comes off due to the impact at the time of dropping. Even when the lid 1 is attached in this way, when the user intends to remove the lid 1, the canopy 2 can be removed while being bent and deformed, so that the canopy 2 can be easily removed. It can also be made possible.
  • the lid 1 is made of a paper-based material
  • the environment is taken into consideration, but the paper-based material has less cushioning property and higher dimensional stability than the resin material such as urethane material. Therefore, if a large step due to the thickness of the blank material is formed in the overlapping portion of the wall material of the lid, the contents of the container leak from the step in the container to which the lid is attached. There is a risk of issuing it.
  • the lid body serving as the packaging member according to the first embodiment at least one end (end 31) of the blank material 30 forming the wall material 3 as the side wall is the compression portion 8. , The thickness of the blank material 30 is thinned at the end 31.
  • the step due to the thickness of the tip end 31a of the end portion 31 of the blank material 30 is reduced.
  • the step is reduced on the inner peripheral surface 3a side of the wall material 3.
  • the step formed in the overlapping portion 6 indicates a step G formed in the tips 31a, 32a of the end portions 31, 32 constituting the overlapping portion 6.
  • FIGS. 11 (a) and 11 (b) are shown.
  • the inner peripheral surface 3a of the lid 1 can be brought into close contact with the portion on the outer peripheral surface side of the opening edge portion of the container T. Since the adhesion between the lid 1 and the container T is excellent, it is possible to prevent the contents from unintentionally spilling between the container T and the lid 1 even if the container T to which the lid 1 is attached is tilted. can.
  • 11 (a) shows a state in which the lid 1 is attached to the container T
  • FIG. 11 (b) shows a contact portion between the lid 1 and the container T.
  • the surface of the raw material for forming the blank material 30 is water-repellent, and when the raw material is cut to form the blank material 30, the end face of the blank material 30 is formed. Is a non-treated surface of water repellent treatment. Therefore, when the blank material 30 is obtained by cutting the raw material diagonally, the non-treated surface of the water-repellent treatment is widely exposed at the end portion of the blank material 30.
  • the end portion of the blank material 30 forming the wall material 3 is formed. Liquid easily penetrates from the position of 31.
  • the end portion 31 is the compression portion 8, and the compression ratio is increased toward the tip 31a of the end portion 31. Therefore, the fiber density of the blank material 30 is increased at the end portion 31, and the liquid does not easily permeate from the position of the end portion 31 of the blank material 30 toward the inside of the blank material 30.
  • the compression rate is increased toward the tip 31a of the end 31 so that the liquid from the end 31 to the inside of the wall material 3 is charged. Since the penetration is regulated, it is possible to reduce the need to give the above consideration.
  • the compression portion 8 is exposed on the inner peripheral surface 3a of the wall material 3 which is the side wall, but the outer peripheral surface 3b of the wall material 3 of the lid 1 is the container T.
  • the lid 1 may form the compression portion 8 so that the compression portion 8 is exposed on the outer peripheral surface 3b of the wall material 3. ..
  • This can be achieved, for example, by forming the compression portion 8 at the end portion 32 shown in FIG. Also in this case, the same effects as those shown in the effects of the first embodiment can be obtained.
  • the packaging member according to the second embodiment of the present invention is the container 50.
  • the container 50 includes a body member 52 that forms a side peripheral surface and a bottom surface material 51 that forms a bottom surface.
  • the body member 52 is joined around the bottom surface member 51.
  • the container 50 has a bottomed structure in which a space is formed inside the body member 52 and the bottom surface member 51, and the upper end side is opened.
  • a container having a flexibility in the opening edge 53 is particularly preferably used.
  • the container 50 is used with the lid C attached to the opening edge 53.
  • the bottom surface material 51 can be manufactured by subjecting a predetermined raw material to a punching process or the like.
  • the raw material for forming the bottom material 51 the same material as the raw material for forming the canopy described in the first embodiment may be used.
  • the body member 52 is provided as a side wall of the packaging member.
  • the body member 52 is formed in an annular shape.
  • the body member 52 has an overlapping portion 60 in which two ends 91 and 92 of a blank material 90 for forming a body material having a predetermined shape are overlapped, and a joint portion 70 in which the overlapping portions 60 join the ends 91 and 92 to each other. And prepare.
  • the blank material 90 for forming the body material a paper-based material is used as in the blank material 30 for forming the wall material 3 described in the first embodiment.
  • the overlapping portion 60 and the joining portion 70 of the body member 52 may be formed in the same manner as the overlapping portion 6 and the joining portion 7 of the wall material 3 described in the first embodiment, respectively.
  • the compression portion 80 is formed in the same manner as the compression unit 8 described in the first embodiment, and may have the same structure and shape as the compression unit 8 described in the first embodiment.
  • the end portion 91 forms the compression portion 80
  • the end portion 91 is formed in a shape that tapers toward the tip end 91a.
  • the compressibility of the compression portion 80 increases toward the tip 91a of the end portion 91.
  • the end portion 91 is located on the outer peripheral surface 52b side of the body member 52, and the end portion 92 is a non-forming portion of the compression portion, and the inner peripheral surface of the body member 52 is formed. It is located on the 52a side.
  • the step of the overlapping portion 60 is reduced as in the first embodiment, and when the lid C is attached to the container 50, the lid is attached. C can be brought into close contact with the container 50, and the adhesiveness can be improved.
  • the step of the overlapping portion 6 is reduced on the outer peripheral surface 52b side of the body member 52.
  • the container 50 may have an annular curl portion 100 formed in an outer winding along the upper end of the body member 52 serving as a side wall.
  • the opening edge portion 53 is formed by the curl portion 100, and the opening surrounded by the curl portion 100 is formed on the upper end side of the container 50.
  • the compression portion 8 is exposed on the outer peripheral surface of the curl portion 100.
  • This can be realized by manufacturing the body member 52 as follows. That is, a paper-based material formed in a fan shape is used as the blank material 90 for forming the body material, and the two end portions 91 and 92 separated along the circumferential direction of the paper-based material are overlapped with each other to overlap the overlapping portion 60. To form. At this time, the overlapping portion 60 is formed by superimposing the two end portions 91 and 92 on each other so that the end portion 92 forming the compression portion 80 faces the inner peripheral surface 52a side of the body member 52.
  • the upper end side end portion of the body member 52 is wound around the outer winding to form the curl portion 100.
  • the inner peripheral surface 52a side of the body member 52 is located on the exposed surface side of the curl portion 100.
  • the end portion 92 is formed in a shape that tapers toward the tip end 92a. Further, in the curl portion 100, the end portion 91 is caught inside the curl portion 100 and concealed.
  • FIG. 10A shows a state in which the lid C is attached to the container 50
  • FIG. 10B shows a contact portion between the lid C and the container 50. At this time, as shown in FIG.
  • the container 50 is equipped with the lid 1 shown in the first embodiment.
  • a state in which the lid 1 according to the first embodiment is in close contact with the container 50 according to the second embodiment is formed. Since the step between the overlapping portions 60 and 6 is reduced in both the container 50 according to the second embodiment and the lid 1 according to the first embodiment, the adhesion between the container 50 and the lid 1 is reduced. Can be further improved.
  • the liquid flows from the position of the end portion 92 of the blank material 90 toward the inside of the body material 52 as in the first embodiment. It becomes difficult to soak.
  • the compression portion 8 is formed on one end portion 31 of the blank material 30, but the end portion on which the compression portion 8 is formed is formed. Not limited to this. As shown in FIGS. 4 (c) and 4 (d), the compression portion 8 may be formed on both end portions 31 and 32 of the blank material 30.
  • an inclined surface 9a is formed on one main surface of the blank material 30 in a region corresponding to the compression portion 8. It is preferable that the other main surface is a flat surface 9b, and the inclined surfaces 9a and 9a formed on the two end portions 31 and 32 face each other at the joint portion 7.
  • an inclined surface 9a is formed on one main surface 30a of the blank material 30 in a region corresponding to the compression portion 8, and the other main surface 30b is formed. Is formed with a flat surface 9b.
  • an inclined surface 9a is formed in a region corresponding to the compression portion 8 on one main surface 30b of the blank material 30, and a flat surface 9b is formed on the other main surface 30a. ..
  • the inclined surface 9a of the end portion 31 and the inclined surface 9a of the end portion 32 are arranged to face each other. In this case, the difference in thickness between the overlapping portion 6 and its surroundings is less likely to occur.
  • FIGS. 4 (c) and 4 (d) show the blank material 30, the joint portion 7, the overlapping portion 6, the compression portion 8, and the end portion 31 attached to each figure.
  • Each reference numeral 32 and the like is replaced with the reference numerals of the blank material 90, the joint portion 70, the overlapping portion 60, the compression portion 80, and the end portions 91 and 92 for the packaging member according to the second embodiment, respectively, to replace the second embodiment with the reference numerals. It may be applied as a drawing illustrating an embodiment. This also applies to FIGS. 4 (a), 4 (b), and 4 (e).
  • the inclined surface 9a is formed on one main surface 30a of the blank material 30, and the other main surface 30b is a flat surface 9b, but the present invention is not limited to this, and FIG. 4 (e) shows. As shown, the inclined surface 9a may be formed in the region corresponding to the compression portion 8 on both the main surfaces 30a and 30b of the blank material 30.
  • the inclined surfaces 9a face each other, but the entire surfaces of the inclined surfaces 9a may face each other or are inclined.
  • the surfaces may face each other at positions offset from each other along the circumferential direction of the side wall.
  • the direction in which the inclined surfaces 9a deviate from each other may be a direction in which the overlapping portion 6 increases along the circumferential direction of the side wall (wall material 3, body member 52) (direction in which the overlapping portions 31 and 32 increase.)
  • the overlapping portion 6 may be reduced in the circumferential direction of the side wall (wall material 3, body member 52) (direction in which the overlapping of the end portions 31, 32 is reduced). Further, as shown in FIG.
  • the inclined surfaces 9a may be displaced from each other according to the size of the end faces of the tips 31a and 32a of the end portions 31 and 32. In this case, it becomes easy to make the thickness of the overlapping portion 6 (the total thickness of the end portion 31 and the end portion 32) equal to the thickness of the blank material 30.
  • FIG. 12 is a diagram for explaining an embodiment of the method for manufacturing a packaging member according to the first embodiment.
  • a blank material 30 is formed by punching a raw material made of a paper-based material into a fan shape (FIG. 12 (a)).
  • a compression step is performed to form a compression portion 8 by compressing at least one end portion 31 of the blank material 30 made of a paper-based material.
  • the compression portion 8 is carried out, for example, by subjecting at least one end portion 31 of the two end portions 31 and 32 of the blank material 30 to a hot press treatment.
  • the hot pressing process can be realized by passing the end portion 31 of the blank material 30 through the roller 110 (FIGS. 12 (b) and 12 (c)).
  • the roller 110 one having a convex portion 130 on the outer peripheral surface can be used.
  • the ridge portion 130 forms an inclined surface on the surface, and as shown in FIG. 13, the end portion 31 is pressed by the ridge portion 130 of the roller 110 and the receiving portion 110a thereof, so that the end portion 31 is pressed.
  • the compression portion 8 can be formed.
  • the shape of the compression portion 8 formed on the end portion 31 of the blank material 30 by defining conditions such as the shape of the inclined surface of the convex portion 130 of the roller 110, the surface shape of the roller 110, and the clearance of the roller 110.
  • the two end portions 31 and 32 are overlapped to form the overlapping portion 6, and the overlapping portions 6 join the ends 31 and 32 to each other to form a joint portion.
  • 7 is formed (side wall forming step).
  • the wall material 3 as an annular side wall is formed (FIG. 12 (d)).
  • a method for forming the bonding portion 7 a method such as ultrasonic bonding can be used.
  • the raw material for forming the canopy is punched out in a circular shape to form the blank material of the canopy 2, and the outer circumference of the blank material of the canopy is bent to form the top surface portion 4 and the rising portion 5 to obtain the canopy 2. Then, the canopy 2 is arranged at a predetermined position on the inner peripheral surface 3a of the wall material 3 (FIGS. 12 (e) and 12 (f)).
  • the inner peripheral surface 3a of the wall material 3 and the outer peripheral surface of the rising portion 5 are joined.
  • a heat seal or the like can be used for the joining process.
  • an adhesive is applied to the outer peripheral surface of the rising portion 5 in advance, and the rising portion 5 of the canopy 2 is pressed against the inner peripheral surface 3a of the wall material 3, and the inner peripheral surface of the rising portion 5 is pressed.
  • the roller 120 is pressed from the side to heat and pressurize (FIG. 12 (g)).
  • the roller 120 rotates along the inner peripheral surface side of the rising portion 5 while rotating.
  • the adhesive is melted and the canopy 2 and the wall material 3 are joined to obtain a lid 1 as a packaging member (FIG. 12 (h)).
  • an adhesive is applied between the rising portion 5 of the canopy 2 and the wall material 3, but this is one of the examples, and the manufacturing method is not limited to this.
  • the roller 120 is pressed against the rising portion 5 of the canopy 2 so as to directly face the wall material 3 for heating.
  • the canopy 2 and the wall material 3 can be joined by the heat seal that is joined by applying pressure.
  • a joining method may be appropriately adopted.
  • one end 31 of the blank material 30 is heat-pressed.
  • both ends 31, 32 may be heat-pressed.
  • a roller 110 having a convex portion 130 provided on the outer peripheral surface is arranged according to the end portions 31 and 32. It can be realized by doing.
  • the roller 110 is arranged on the upper side of the end portion 31 of the blank material 30, and the roller 110 is arranged on the lower side of the end portion 32 of the blank material 30.
  • an inclined surface is formed on the upper surface side of the end portion 31 of the blank material 30, and an inclined surface is formed on the lower surface side of the end portion 32 of the blank material 30. Then, the wall material 3 as shown in FIG. 4D can be formed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)
PCT/JP2020/032793 2020-08-28 2020-08-30 包装用部材及び包装用部材の製造方法 WO2022044305A1 (ja)

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JP2020-145109 2020-08-28
JP2020145109 2020-08-28
JP2020145134A JP6803495B1 (ja) 2020-08-28 2020-08-29 包装用部材
JP2020-145134 2020-08-29

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Publication number Priority date Publication date Assignee Title
JP7312289B2 (ja) * 2021-08-05 2023-07-20 シャープ株式会社 電位測定装置
WO2024111653A1 (ja) * 2022-11-22 2024-05-30 裕義 林 蓋体、蓋体用ブランク材、蓋体と容器の組み合わせ、及び蓋体付き容器

Citations (8)

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Publication number Priority date Publication date Assignee Title
JPS50112505U (zh) * 1974-02-07 1975-09-13
JPS5882316U (ja) * 1981-12-01 1983-06-03 伊藤　禎美 容器
JPH11342931A (ja) * 1998-04-23 1999-12-14 Sonoco Dev Inc 筒状容器およびその製造方法
JP2002145242A (ja) * 2000-11-06 2002-05-22 Nippo Corp 紙容器および紙容器の蓋ならびにそれらの製造方法
JP2003191941A (ja) * 2001-12-21 2003-07-09 Dainippon Printing Co Ltd 密封蓋対応紙カップ
JP2008162700A (ja) * 2006-12-28 2008-07-17 Weyerhaeuser Co 断熱コップのためのリムおよび端部シールを形成する方法
JP2014516888A (ja) * 2011-06-17 2014-07-17 ベリー プラスチックス コーポレイション カップ用断熱スリーブ
JP2017159500A (ja) * 2016-03-08 2017-09-14 有限会社ニットウ 環境対応に優れ、且つ作成容易な紙製容器の製造方法

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Publication number Priority date Publication date Assignee Title
JPS56164839A (en) * 1980-05-22 1981-12-18 Nippon Dekishi Kk Manufacture of vessel made of paper

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50112505U (zh) * 1974-02-07 1975-09-13
JPS5882316U (ja) * 1981-12-01 1983-06-03 伊藤　禎美 容器
JPH11342931A (ja) * 1998-04-23 1999-12-14 Sonoco Dev Inc 筒状容器およびその製造方法
JP2002145242A (ja) * 2000-11-06 2002-05-22 Nippo Corp 紙容器および紙容器の蓋ならびにそれらの製造方法
JP2003191941A (ja) * 2001-12-21 2003-07-09 Dainippon Printing Co Ltd 密封蓋対応紙カップ
JP2008162700A (ja) * 2006-12-28 2008-07-17 Weyerhaeuser Co 断熱コップのためのリムおよび端部シールを形成する方法
JP2014516888A (ja) * 2011-06-17 2014-07-17 ベリー プラスチックス コーポレイション カップ用断熱スリーブ
JP2017159500A (ja) * 2016-03-08 2017-09-14 有限会社ニットウ 環境対応に優れ、且つ作成容易な紙製容器の製造方法

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CN114104456A (zh) 2022-03-01

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