WO2023171038A1 - 容器及び容器製造方法 - Google Patents

容器及び容器製造方法 Download PDF

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Publication number
WO2023171038A1
WO2023171038A1 PCT/JP2022/041852 JP2022041852W WO2023171038A1 WO 2023171038 A1 WO2023171038 A1 WO 2023171038A1 JP 2022041852 W JP2022041852 W JP 2022041852W WO 2023171038 A1 WO2023171038 A1 WO 2023171038A1
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WO
WIPO (PCT)
Prior art keywords
flange
paper
container
flange portion
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.)
Ceased
Application number
PCT/JP2022/041852
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
慎二 一倉
伸一郎 栗原
和久 田村
将 武井
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.)
Tokan Kogyo Co Ltd
Original Assignee
Tokan Kogyo Co Ltd
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 Tokan Kogyo Co Ltd filed Critical Tokan Kogyo Co Ltd
Priority to JP2024505888A priority Critical patent/JP7735532B2/ja
Priority to CN202280091426.5A priority patent/CN118679103A/zh
Priority to EP22931010.7A priority patent/EP4491526A4/en
Publication of WO2023171038A1 publication Critical patent/WO2023171038A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/16—Cutting webs
    • 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
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • 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
    • B31B50/59—Shaping sheet material under pressure
    • 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
    • B65D3/28—Other details of walls
    • B65D3/30—Local reinforcements, e.g. metallic rims
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • 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
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
    • 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
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/20—Shape of rigid or semi-rigid containers having a curved cross section, e.g. circular
    • 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 container for food and beverages and a method for manufacturing the same.
  • containers for food and beverages have been used, each of which has a body made of sheet-like material and has a side seam (bonded part), and a bottom attached to the inside of the body.
  • Those whose open ends are sealed with a film-like lid are widely used.
  • the open end of the container is provided with a flange portion facing the outside of the container, and after the container is filled with contents such as a beverage, a lid material is adhered to the flange portion by heat sealing, for example. .
  • Patent Document 1 listed below describes that the flange portion (mouth roll) is formed so that its cross section is circular (curled shape).
  • Patent Document 2 describes that the flange portion (cup rim portion) is formed into a flat shape by being pressed from above and below.
  • the flange part has a curled shape as described in Patent Document 1, or if it has a pressed flat shape as described in Patent Document 2, the flange part will deform when the lid material is opened. As a result, the lid cannot be opened in a stable manner, and the fit of the lid may deteriorate as described above.
  • an object of the present invention is to provide a container that can suppress deformation of the flange portion during sealing and opening of the lid material without changing the sealing conditions of the lid material, and a method for manufacturing the container. It is about providing.
  • a container has a cylindrical body, a flange, and a bottom.
  • the body portion has a side seam portion formed by adhering a paper material coated with a thermoplastic resin on the side surface.
  • the flange portion is formed of the paper material wound around one end of the body portion, and the lid material is adhered by heat sealing.
  • the bottom portion is formed at the other end of the body.
  • the flange portion has a stepped portion having a predetermined height and a predetermined width at the outer peripheral end of the upper surface thereof.
  • the seal head when sealing the lid material, the seal head does not contact the stepped portion but only contacts the inside of the flange portion, thereby preventing deformation of the flange portion. Furthermore, when opening the lid, the point of action of the unsealing force on the fulcrum (the boundary between the body and the flange) is inside the outer peripheral edge of the flange (starting point of the stepped part), so the force is reduced. The moment is reduced, and deformation of the flange portion can be suppressed.
  • the predetermined height may be one-half or more of the thickness of the paper material.
  • the predetermined width is such that the moment of the force is 60N when the boundary between the body and the flange is the fulcrum of the force when opening the lid, and the starting point of the step is the point of application of the force.
  • the length may be set to less than mm.
  • the moment of force at the time of unsealing is set to less than 60 N ⁇ mm, deformation of the flange portion during unsealing can be suppressed while maintaining seal strength. If the moment of force is 60 N ⁇ nm or more, the flange portion may be deformed when the package is opened. Note that the width of such a stepped portion is approximately twice or more the thickness of the paper material.
  • the flange portion includes a two-layer portion located below the step portion and having two overlapping sheets of paper material when viewed in cross-section in the radial direction of the body portion, and a two-layer portion located on the inner circumferential side of the two-layer portion and viewed in cross-section in the radial direction of the body portion. It may have a three-layer portion in which three sheets of the above-mentioned paper materials are overlapped when viewed.
  • the two-layer section may have one adhesive section for bonding the two sheets of paper, and the three-layer section may have two bonding sections for bonding the three sheets of paper.
  • the strength of the stepped portion can be increased in the two-layered portion, and the sealing can be performed stably and with high strength when sealing the lid material in the three-layered portion.
  • the flange portion may have a space between the adhesive portion of the two-layer portion and the adhesive portion of the three-layer portion.
  • the sealing strength can be increased step by step from the outer circumference to the inner circumference of the flange, the moment of force is gradually increased from the outer circumference to the inner circumference when opening the lid. This can improve the ease of opening.
  • a container manufacturing method includes: A cylindrical body with side seams on the sides is formed by gluing paper materials coated with thermoplastic resin, forming a bottom at one end of the body; The other end of the body is rolled up to form a curled flange, The method includes forming a stepped portion having a predetermined height and a predetermined width by press-molding the outer peripheral end of the flange portion.
  • the present invention provides a container that can suppress deformation of the flange portion during sealing and unsealing of the lid material without changing the sealing conditions of the lid material, and a method for manufacturing the container. be able to.
  • this effect does not limit the invention.
  • FIG. 1 is a diagram showing the front appearance of a paper cup according to an embodiment of the present invention.
  • FIG. 2 is an enlarged sectional view of the flange portion in FIG. 1.
  • FIG. 7 is a diagram showing the results of studies for determining the height of the stepped portion of the flange portion. It is a figure which showed the experimental result for determining the width of the step part of the said flange part.
  • FIG. 7 is a diagram illustrating experimental results regarding deformation of the flange portion during sealing and change in mouth outer diameter dimension in comparison with a conventional round curled flange portion. It is a flowchart showing the manufacturing process of the above-mentioned paper cup.
  • FIG. 1 is a diagram showing the front appearance of a paper cup as a container according to an embodiment of the present invention. A portion of the figure is shown in cross section.
  • the paper cup 100 has a body 1 and a bottom 2.
  • the body part 1 is made by covering (laminating) a paper material (base paper) with a thermoplastic resin such as polyethylene, polypropylene, or polyester, punching it out as a fan-shaped blank, and wrapping it around a cylindrical mold. The side edges are overlapped and glued together. By adhering these side end portions together, a side seam portion 4 is formed on the side surface of the body portion 2 from above and below.
  • a paper material base paper
  • a thermoplastic resin such as polyethylene, polypropylene, or polyester
  • the bottom part 2 is a circular bottom paper punched out of the same paper material as the body part 1 and drawn, and is adhered to the inside of the lower end of the body part 1 at the same time as the body part 1 is adhered.
  • a lid material such as a polyethylene film is adhered by heat sealing, thereby sealing the paper cup 100.
  • the paper material used as the raw material for the body portion 1 and the bottom portion 2 is composed of, for example, multiple layers.
  • a synthetic resin layer, a foam layer, a metal layer, an inorganic vapor-deposited film, etc. may be laminated on the paper material.
  • the body 1 and the bottom 2 may further be laminated with a resin film such as polyethylene terephthalate.
  • FIG. 2 is an enlarged sectional view of the flange portion 3 (section E in FIG. 1).
  • the flange portion 3 has a sealing surface 31 to which the lid material is adhered, a winding portion 32 around which the body portion 1 is wound, and a stepped portion 33.
  • the width A of the flange portion 3 is 2 to 5 mm, and the thickness B of the flange portion 3 is approximately equal to three times the thickness T of the paper material.
  • the stepped portion 33 is formed at the outer peripheral end of the upper surface of the flange portion 3. As will be described later, the stepped portion 33 is formed by press-molding the outer peripheral end of a round curled flange portion.
  • the seal head does not contact the stepped portion 33 and contacts only the inside of the flange portion 3 (sealing surface 31) when sealing the lid material, thereby preventing deformation of the flange portion 3. be able to. Furthermore, when opening the lid, the point of action W of the unsealing force (arrow in the figure) on the fulcrum F (boundary between the body 1 and the flange 3) is inside the outer peripheral edge of the flange 3 (the starting point of the stepped portion 33). ), the moment of force becomes small, and deformation of the flange portion 3 can be suppressed.
  • the flange portion 3 is located below the step portion 33 and includes a two-layer portion 34 in which two sheets of paper overlap in a cross-sectional view in the radial direction (X direction) of the body portion 1, and a two-layer portion 34 that is more inner than the two-layer portion 34. It has a three-layer part 35 located on the side and having three overlapping sheets of paper material in the above-mentioned cross-sectional view.
  • the stepped portion 33 is formed by leaving the inner circumferential side of the round curled flange portion, where three sheets of paper overlap, as it is, and pressing the outer circumferential end, where two sheets of paper overlap. Ru.
  • the two-layer section 34 has one adhesive section 34a for bonding the two sheets of paper together by fusion bonding or the like, and the third layer section 35 has two bonding sections 35a for bonding the three sheets of paper together by fusion bonding or the like. and 35b.
  • the strength of the stepped portion 33 can be increased in the two-layer portion 34, and the sealing can be performed stably and with high strength when sealing the lid material in the three-layer portion 35.
  • a space S is formed between the adhesive portion 34a of the two-layer portion 34 and the adhesive portions 35a and 35b of the three-layer portion 35.
  • a space S is formed between the 3-layer portion 35 with high sealing strength of the lid material and the 2-layer portion 34 with low sealing strength, so that the 2-layer portion has a lower sealing strength than the 3-layer portion 35.
  • a portion higher than 34 will be formed. Therefore, since the sealing strength can be increased stepwise from the outer circumference to the inner circumference of the flange portion 33, the moment of force is gradually increased from the outer circumference to the inner circumference when opening the lid. Ease of opening can be improved.
  • the height D of the stepped portion 33 (the distance between the sealing surface 31 and the bottom surface of the stepped portion 33) is set to be one-half or more of the thickness T of the paper material.
  • FIG. 3 is a table showing the results of studies for determining the height D of the stepped portion 33. As shown in the figure, the present inventors calculated the thickness of the base paper after compression during the press molding described above for four types of base paper (base papers A to D) having different densities.
  • the base paper of the paper cup 100 has a density of 0.75 g/cm3 or more based on usage experience, and the specific density of cellulose, which is the main component of the base paper, is 1.5 g/cm3, so the compression ratio is 2 or less.
  • the portion of the curled flange where three sheets of base paper overlap on the inner circumferential side (corresponding to the three-layer portion 35) is left as is, and the portion of the outer circumference where two sheets of base paper overlap (corresponding to the three-layer portion 35) is left as is.
  • the difference between the compressed thickness of three sheets of paper and the compressed thickness of two sheets of paper (corresponding to the two-layer section 34) The height of the portion 33) is 0.15 mm (one half of the thickness T of the base paper). Therefore, it is desirable that the height D of the stepped portion 33 be T/2 or more.
  • the width C of the stepped portion 33 (the distance from the boundary between the sealing surface 31 and the stepped portion 33 to the outer circumferential edge of the flange portion 3) is determined by the force applied to the boundary between the body portion 1 and the flange portion 3 when the lid material is opened.
  • the length is such that the point of application W is located approximately at the center of the width A direction (X direction) of the flange portion 3. It is set.
  • FIG. 4 is a table showing the experimental results for determining the width C of the stepped portion. As shown in the figure, the present inventors changed the distance from the fulcrum F to the point of action W (width of the flange portion 3 - width of the stepped portion 33) to prevent peeling when unsealing the sealed lid material. Strength and moment of force were measured.
  • the thickness of the base paper used in the experiment was approximately 0.30 mm, and the width of the flange portion 3 was 3.0 mm.
  • the conditions for sealing the lid material were a sealing time of 1.2 seconds, a sealing temperature of 130°C, and a sealing pressure of 130kgf.
  • the width C of the stepped portion 33 is preferably set to such a length that the moment of force applied to the point of application W when the lid material is opened is less than 60 N ⁇ mm.
  • the width C is generally larger than twice the thickness T of the paper material.
  • FIG. 5 is a table showing experimental results regarding the deformation of the flange portion 3 configured as described above during sealing and the change in the outer diameter of the mouth in comparison with a conventional round curled flange portion.
  • the X direction (outer diameter not including the side seam part 4) and Z direction (side seam part 4) before and after sealing the lid material.
  • the outer diameter (outer diameter including the seam portion 4) (FIG. 1) was measured, and the average value, maximum value, minimum value, range (difference between maximum value and minimum value), and standard deviation were calculated.
  • the average value was +0.7 mm in the X direction and +0.9 mm in the Z direction, which was a large dimensional change, but in the flange part 3 of this embodiment, the average value The dimensional changes were extremely small, with a value of -0.1 mm in the X direction and -0.1 mm in the Z direction.
  • the stepped portion 33 of this embodiment can prevent deformation and change in the external dimensions of the mouth during sealing.
  • FIG. 6 is a flowchart showing the flow of the manufacturing process of the paper cup 100.
  • a fan-shaped blank is punched out from paper material laminated with the thermoplastic resin, and both ends of the blank are melted with a gas burner and then wrapped around a cylindrical mold.
  • the body 1 is formed by bonding (step 61).
  • a circular bottom paper punched from the same paper material as above is drawn and vacuum-adsorbed to the cylindrical mold, and at the same time the ends of the body 1 are bonded together, the body is It is glued to the inside of the lower end of 1. Then, the lower end of the body part 1 is folded into the bottom part 2 side and crimped, thereby joining the bottom part 2 to the body part 1 (step 62).
  • the upper end of the body 1 is rolled outward while being rotated by a tool, thereby forming a flange portion having a circular cross section in the radial direction (X direction) of the body 1 (step 63 ).
  • step 64 the outer circumferential end of the flange portion having a circular cross section is pressed as shown in FIG. 2, thereby forming the stepped portion 33 (step 64). As a result, a paper cup 100 with an open top is manufactured.
  • the paper cup 100 is filled with contents such as ice and drinks, and the lid material is adhered to the opening (sealing surface 31 of the flange portion 3) by heat sealing, thereby sealing the paper cup 100 ( Step 65).
  • the seal head first presses the seal surface 31 and then presses the stepped portion 33 after that, so the sealing strength on the seal surface 31 is high by the time lag, The seal strength will be low.
  • the shapes of the flange portion 3 and step portion 33 are not limited to those shown in FIG. 2 above.
  • the stepped portion 33 shown in FIG. 2 is composed of a bottom surface that is substantially parallel to the seal surface 31 and a slope that connects the seal surface 31 and the bottom surface, but the slope is a surface that is more nearly vertical, The bottom surface may be formed wider.
  • the paper cup 100 was manufactured by manufacturing the body 1 and the bottom 2 as different parts and bonding the bottom 2 to the body 1.
  • a container such as a paper cup may be manufactured by integrally forming the body and the bottom from a single sheet of paper material, and even in this case, the flange portion may be formed in the same manner as in the above embodiment.
  • the paper cup 100 is shown as a container in the above embodiment, the use of the container is not limited to a cup, and may be used to store food such as sweets, for example.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
PCT/JP2022/041852 2022-03-07 2022-11-10 容器及び容器製造方法 Ceased WO2023171038A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2024505888A JP7735532B2 (ja) 2022-03-07 2022-11-10 容器及び容器製造方法
CN202280091426.5A CN118679103A (zh) 2022-03-07 2022-11-10 容器和容器制造方法
EP22931010.7A EP4491526A4 (en) 2022-03-07 2022-11-10 CONTAINER AND CONTAINER MANUFACTURING METHOD

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-034527 2022-03-07
JP2022034527 2022-03-07

Publications (1)

Publication Number Publication Date
WO2023171038A1 true WO2023171038A1 (ja) 2023-09-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/041852 Ceased WO2023171038A1 (ja) 2022-03-07 2022-11-10 容器及び容器製造方法

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Country Link
EP (1) EP4491526A4 (https=)
JP (1) JP7735532B2 (https=)
CN (1) CN118679103A (https=)
WO (1) WO2023171038A1 (https=)

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JPS5726315U (https=) * 1980-07-23 1982-02-10
JPH0739649U (ja) * 1993-12-27 1995-07-18 東罐興業株式会社 カップ状容器
JP3060975U (ja) * 1999-01-22 1999-09-14 十條セントラル株式会社 扁平フランジを有する紙カップ
JP2004042987A (ja) 2002-07-15 2004-02-12 Toppan Printing Co Ltd 飲料用紙カップ及びその製造方法
JP2007210639A (ja) * 2006-02-09 2007-08-23 Dainippon Printing Co Ltd 紙カップ
JP2008507458A (ja) 2004-07-26 2008-03-13 ストラ エンソ オーワイジェイ プラスチックで被覆した厚紙のカップにマウスロールを作る方法およびこの方法で作ったカップ
JP2013249117A (ja) * 2012-06-01 2013-12-12 Toppan Printing Co Ltd フランジ強度を向上させた紙容器

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JP6136125B2 (ja) * 2012-06-21 2017-05-31 凸版印刷株式会社 カップ型紙容器
JP6194661B2 (ja) * 2013-07-04 2017-09-13 凸版印刷株式会社 紙カップフランジ成形金型
JP6315728B2 (ja) * 2014-07-24 2018-04-25 東罐興業株式会社 容器及び容器製造方法
CN208291655U (zh) * 2018-03-23 2018-12-28 朱永源 卷压边纸制容器以及用以制成该卷压边纸制容器的纸材
KR20210077602A (ko) * 2019-12-17 2021-06-25 쇼와 덴코 패키징 가부시키가이샤 컵형상 용기

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726315U (https=) * 1980-07-23 1982-02-10
JPH0739649U (ja) * 1993-12-27 1995-07-18 東罐興業株式会社 カップ状容器
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CN118679103A (zh) 2024-09-20
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JPWO2023171038A1 (https=) 2023-09-14

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