WO2010150500A1 - レトルトカップ - Google Patents
レトルトカップ Download PDFInfo
- Publication number
- WO2010150500A1 WO2010150500A1 PCT/JP2010/004091 JP2010004091W WO2010150500A1 WO 2010150500 A1 WO2010150500 A1 WO 2010150500A1 JP 2010004091 W JP2010004091 W JP 2010004091W WO 2010150500 A1 WO2010150500 A1 WO 2010150500A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin
- paper
- edge
- blank
- retort cup
- Prior art date
Links
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 122
- 230000002093 peripheral effect Effects 0.000 claims abstract description 85
- 229920005989 resin Polymers 0.000 claims description 268
- 239000011347 resin Substances 0.000 claims description 268
- 239000000463 material Substances 0.000 claims description 128
- 230000004888 barrier function Effects 0.000 claims description 66
- 238000004519 manufacturing process Methods 0.000 claims description 48
- 238000004080 punching Methods 0.000 claims description 24
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 74
- 239000000758 substrate Substances 0.000 description 58
- 238000007789 sealing Methods 0.000 description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 28
- -1 polyethylene Polymers 0.000 description 25
- 238000000465 moulding Methods 0.000 description 22
- 229920001684 low density polyethylene Polymers 0.000 description 19
- 239000004702 low-density polyethylene Substances 0.000 description 19
- 238000004804 winding Methods 0.000 description 18
- 239000007789 gas Substances 0.000 description 16
- 238000005452 bending Methods 0.000 description 14
- 229910052782 aluminium Inorganic materials 0.000 description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 13
- 229920000139 polyethylene terephthalate Polymers 0.000 description 13
- 239000005020 polyethylene terephthalate Substances 0.000 description 13
- 239000004698 Polyethylene Substances 0.000 description 12
- 229920000573 polyethylene Polymers 0.000 description 12
- 239000002985 plastic film Substances 0.000 description 11
- 229920006255 plastic film Polymers 0.000 description 11
- 238000003825 pressing Methods 0.000 description 11
- 238000007639 printing Methods 0.000 description 11
- 239000011888 foil Substances 0.000 description 10
- 238000009957 hemming Methods 0.000 description 10
- 239000002648 laminated material Substances 0.000 description 7
- 238000010030 laminating Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000035515 penetration Effects 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 229910010272 inorganic material Inorganic materials 0.000 description 5
- 238000007740 vapor deposition Methods 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
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- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 150000002484 inorganic compounds Chemical class 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920013716 polyethylene resin Polymers 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 235000013361 beverage Nutrition 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
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- 238000003475 lamination Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 239000004278 EU approved seasoning Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
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Images
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
- B65D3/10—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 form of integral or permanently secured end closure
- B65D3/12—Flanged discs permanently secured, e.g. by adhesives or by heat-sealing
- B65D3/14—Discs fitting within container end and secured by bending, rolling, or folding operations
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/06—Impact-absorbing shells, e.g. of crash helmets
- A42B3/062—Impact-absorbing shells, e.g. of crash helmets with reinforcing means
- A42B3/063—Impact-absorbing shells, e.g. of crash helmets with reinforcing means using layered structures
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/02—Plates, dishes or the like
- A47G19/03—Plates, dishes or the like for using only once, e.g. made of paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0095—Means acting upon failure of the filtering system, e.g. in case of damage of the filter elements; Failsafes
-
- 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
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F7/00—Processes not otherwise provided for
- B31F7/006—Processes not otherwise provided for edges, e.g. sheet edges
-
- 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
- B65D3/22—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 with double walls; with walls incorporating air-chambers; with walls made of laminated material
-
- 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
- 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
- B65D81/38—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 with thermal insulation
- B65D81/3865—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 with thermal insulation drinking cups or like containers
- B65D81/3874—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 with thermal insulation drinking cups or like containers formed of different materials, e.g. laminated or foam filling between walls
Definitions
- the present invention relates to a retort cup having a structure in which a paper end surface is not exposed at a place where a liquid material or the like contacts, and a method for manufacturing the same.
- a paper cup formed by providing a joining portion on a body made of a blank is generally used.
- This blank is formed by punching a laminated material into a predetermined shape.
- a thermoplastic resin layer such as polyethylene is provided on both surfaces of paper as a base material.
- a paper container such as a paper cup formed using a laminated material including a layer having an excellent barrier property is often used.
- this laminated material for example, from the front side, polyethylene film / paper / polyethylene film / aluminum foil / polyethylene terephthalate film / polyethylene film, or plastic film / polyethylene film having polyethylene film / paper / polyethylene film / metal oxide vapor deposition layer Is used.
- a method of ensuring the barrier property of the joint portion of the paper cup for example, a method of performing end surface treatment (edge protection) for protecting the end surfaces at both ends of the joint portion of the body member constituting the body portion of the paper cup is known. This method is a method called skive hemming shown in FIGS. 2A to 2C.
- a body member 100 made of a laminated sheet in which a thermoplastic resin 102 is laminated on a paper base 101 is used (see FIG. 2A).
- the outermost layer edge of the barrel member 100 is skived (cut) about half the thickness of the barrel member 100 by a cutting milling method or a cutting bell knife method (see FIG. 2B).
- the remaining half of the body member 100 that has been skived (cut) is hemmed (folded back) so that the deleted surface is inside, and the paper end surface is protected by the thermoplastic resin (see FIG. 2C).
- Patent Documents 1 to 5 listed below As a method for producing a cup-shaped paper container having excellent barrier properties without performing skive hemming, a method using a blank in which the end surface of a paper substrate is covered with a film has been proposed (for example, Patent Documents 1 to 5 listed below). 5).
- the inner edge of the body bonding portion is formed by extending the thermoplastic resin layer from the paper base material throughout. .
- the film of the thermoplastic resin layer extended from the paper base material is irregularly formed when the cup is formed. For this reason, it was not possible to sufficiently cover the end face of the paper substrate, which is the original purpose.
- the finish as a cup-shaped paper container is poor, there has been a problem such as a defect in appearance.
- cup-shaped paper container has a flange portion formed by winding the upper end edge of the body member more than once around the opening.
- the flange portion at the opening of the cup-shaped paper container in this way, even when force is applied from the outside, the deformation of the paper container can be suppressed, so that the paper container is easy to use as a drinking mouth of the beverage container Can be provided. Furthermore, since a lid can be stacked and sealed on the upper surface of the flange portion, it is suitable for a cup-shaped paper container for applications requiring sealing properties.
- a flange portion formed by winding the upper end edge portion of the body member is pressed from above and below to be in a flat state.
- an ultrasonic means can be adopted in addition to a normal heating and pressurizing means.
- the flange portion When the flange portion is formed by winding the upper end edge of the body member into the opening as described above, a stepped portion due to the thickness of the paper as the base material is generated in the flange portion. For this reason, when a lid is placed on the upper surface of the flange portion and heat-sealed, the step cannot be reliably sealed. In particular, when the flange portion is in a flat state, the influence of the thickness of the base material was large.
- a filling member made of another resin or the like is provided to eliminate the stepped portion, and the sealing seal at the position of the stepped portion is partially provided. Had to be done.
- Patent Document 5 in a cup-shaped paper container in which a cylindrical body member and a bottom member at the bottom of the body member are integrated, the side located inside the overlapping portion of the blank.
- This blank is comprised from the lamination sheet which uses as a base material the paper by which the thermoplastic resin layer was provided in the inner surface at least.
- this cylindrical body member one side edge of the blank is overlapped with the other side edge, and the body portion bonding portion and the upper end edge are wound one or more times to form a flange portion.
- the amount of resin necessary for adhesion of the lid material may be insufficient only by providing a notch at the upper part of the side edge of the body member not provided with the resin part. Furthermore, there remains a problem that sealing of the end face of the body member with the resin at the upper flange portion of the body bonding portion tends to be incomplete.
- the substrate is overlapped so that the folded resin portion of the blank is inside the other side edge.
- a paper container in which a body bonded portion is formed by being in close contact with a material (see Patent Document 3 below).
- the folded resin portion is formed by folding a resin portion extending outward from one side edge to the outer surface side.
- This paper container is protected by covering the inner surface-side base material end face in the body part bonding part with a thermoplastic resin layer. Moreover, in the case of a cup-shaped container, since the flange part is formed by winding the upper end edge part of the trunk
- the following patent document 3 proposes a solution to this problem.
- a paper container having a body bonding portion is formed.
- This laminated sheet is based on paper having a thermoplastic resin layer provided at least on the inner surface.
- the folded resin portion is formed by folding a resin portion extending outward from one side edge to the outer surface side.
- Another object of the present invention is to provide a paper container and a method for producing the retort cup that are directly made into a retort cup and paper container from a roll-shaped paper base material.
- Another aspect of the present invention is a retort cup in which a flange member is formed by winding a body member into an opening, and in particular, a retort cup in which a flat flange is formed. And it aims at provision of the retort cup excellent in sealing performance.
- a retort cup includes a tubular body formed from a body forming blank having a paper layer and a thermoplastic resin layer provided on both sides of the paper layer;
- a retort cup comprising: a bottom portion that seals the opening; and the bottom portion has a peripheral portion that is bent downward, and the body portion overlaps both end edges of the body portion forming blank.
- a sealed body part a lower folded part formed at the lower end of the trunk part by folding the trunk forming blank inward, and an end of the folded trunk forming blank
- An upper folded portion formed by folding the portion inwardly, and a lower end portion of the trunk portion, the upper folded portion, and the bottom portion in a state where a peripheral edge portion of the bottom portion is inserted into the lower folded portion.
- the peripheral edge of They are wearing seal.
- edge extending portions in which the thermoplastic resin layer extends over a predetermined width may be provided at both end edges of the body portion.
- the end edge extending portion located inside the body portion at the body portion bonding portion may be folded back outside the body portion and located between the edges.
- the end edge extending portion positioned outside the body portion at the body portion bonding portion may be folded back inside the body portion and positioned between the edges.
- the edge extending portion may be provided over the entire length of the edge.
- the edge extending portion located outside the overlapping portion may be in close contact with the trunk forming blank located inside the overlapping portion.
- thermoplastic resin layer may include a layer having gas barrier properties.
- the body portion may form a flange portion having a flat upper surface.
- the trunk portion forming blank may have a cutout portion in which the paper layer is cut out at a corner portion on the side where the flange portion is formed.
- the corner of the paper layer of the body portion forming blank that is sealed by the bottom portion may be cut out.
- the body portion may have a thermoplastic resin layer extending from the notch portion.
- the edge of the peripheral edge may be separated from each of the upper folded portion and the lower folded portion.
- a method for manufacturing a retort cup according to another aspect of the present invention includes a punching step of punching a laminated sheet having a paper base material into a predetermined shape, and extending outward of the edge of the blank.
- one of the resin portions is folded, and in the trunk portion forming step, the edges are arranged so that the folded resin portion is inside the other resin portion. May be bonded together to form a body bonded portion.
- the exposed portion of the end edge portion on the bottom side of the trunk portion forming blank is sealed to protect the end face.
- the liquid in the retort cup does not soak from the paper end surface and wet the paper. As a result, the strength of the paper layer does not decrease.
- penetration from the inside of the retort cup penetration from the outside is prevented, providing a water-resistant retort cup that can withstand boiling, retort sterilization, or cooling in water. it can.
- drum for blank formation oppose By providing the edge extending portion, the end of the substrate can be sealed. Moreover, this sealing can be reliably performed by making it contact
- the edge extending portion on the inner side of the trunk overlapping portion of the trunk forming blank is folded back to the outer side of the retort cup and positioned between the outer edge.
- the inner edge is covered with the edge extending portion.
- the end of the inner edge extending portion is sealed between the outer base material and the inner base material, thereby preventing the end portion from being exposed.
- the thermoplastic resin layer on the inner surface of the base material has a laminated structure including a gas barrier layer made of a metal, an inorganic material, or the like that does not have water resistance or gas resistance, the resin layer can be protected.
- the outer edge extending portion at the trunk overlapping portion of the trunk forming blank is folded back to the inner side of the retort cup and positioned between the inner edge.
- the outer edge of the joining surface of the body base material is covered with the edge extending portion.
- the end portion of the outer edge extending portion is sealed between the outer base material and the inner base material, thereby preventing the end portion from being exposed.
- the resin layers on both sides of the base material have a laminated structure including a gas barrier layer made of a metal or an inorganic material having no water resistance or gas resistance, the resin layer can be protected.
- the inner edge extending portion is folded back to the outside of the retort cup and is crimped in a state of being located between the outer edge, thereby further improving the barrier property on the joint surface of the base material of the body portion. Will definitely improve.
- the retort cup which concerns on the same aspect can be provided by providing an edge extension part over the full length of an edge.
- the skive hemming method there are quality problems such as paper dust from which the paper is scraped, sticking of glue, and cutting of the skive.
- this quality problem is solved by performing edge protection by a method of covering with a film.
- the bottom of the retort cup is also sealed by increasing the curling amount of the bottom of the body member and sandwiching the end between the body member and the bottom member, thereby exposing the end surface of the body member at the bottom. Disappear.
- the end surface treatment is performed by forming a layer that seals the end surface of the paper substrate with the thermoplastic resin layer without bending the paper substrate or the like. For this reason, a high quality retort cup with improved oxygen barrier properties and water vapor barrier properties free from pinholes and cracks can be obtained.
- the resin part extended from the edge located in the outer side of the overlapping part of the said blank has the folding
- the end of the substrate can be reliably sealed.
- the thermoplastic resin layer includes a gas barrier layer, a paper container in which the end surface of the gas barrier layer is not exposed can be obtained.
- the resin portion extending from the edge located outside the overlapping portion of the blank is in close contact with the inner blank of the overlapping portion, The end of the substrate can be reliably sealed. Thereby, the paper container which can ensure the resin amount of a trunk
- thermoplastic resin layer on the inner surface has the gas barrier layer.
- the paper layer at the upper corner of the body member blank made of the laminated material for the blank consisting of the paper layer and the thermoplastic resin layer is cut into the cutout portion.
- thermoplastic resin layer is extended from the edge portion of the paper layer of the body portion, and the extended portion is folded back so as to cover the edge portion of the paper layer. Since the body member is formed using the body member blank whose end surface is covered with the thermoplastic resin layer by bonding, the penetration of contents and moisture from the edge of the paper layer of the body portion is effectively prevented. I can do it.
- drum member blank contains a gas barrier property
- drum member is protected and gas barrier property is ensured, Therefore A retort cup having excellent storage stability can be obtained.
- thermoplastic resin layer extends from the edge of the body paper layer, and the extended portion is folded and bonded so as to cover the edge of the paper layer. The amount can be secured, and the step of the body bonding portion is unlikely to occur. Furthermore, in the case of a thermoplastic resin layer including a gas barrier layer, a retort cup in which the end surface of the gas barrier layer is not exposed to the inside can be obtained.
- thermoplastic resin layer extending portion is formed by the blank thermoplastic resin layer forming the trunk member, an additional process such as tape application is not required.
- an additional process such as tape application is not required.
- a retort cup with excellent contents preservability can be obtained.
- the flat state of the upper surface of the flange portion can be easily realized. That is, it is possible to flatten the upper surface of the wound flange portion without any level difference, and it is possible to more surely seal without any gap by overlapping the lid material on the upper surface of the flange portion and sealing it as it is.
- a roll-shaped retort cup that does not interfere with the coating of the paper end surface and has a beautiful barrier property as a retort cup is obtained.
- a method for producing a retort cup produced directly from a paper substrate can be provided.
- an end face folding device for the edge can be provided on the retort cup molding machine for molding the retort cup. For this reason, there is little loss between each process, and a retort cup can be produced still more efficiently.
- the edge processing edge protection of the side edge is performed in the state of the web-like sheet, the range of selection of the molding machine for molding the retort cup and the paper container is expanded. For this reason, it becomes possible to manufacture a retort cup using a wide range of molding machines such as a winding type and a sheet type. Moreover, since the unnecessary part of a web-like sheet
- a layer for sealing the end surface with the thermoplastic resin layer without forming the paper base material or the like by the end surface processing (edge protection) is formed. For this reason, a high quality retort cup with improved oxygen barrier properties and water vapor barrier properties free from pinholes and cracks can be obtained.
- FIG. 7B is a cross-sectional view taken along the line A-A ′ of FIG. 7A showing a first punching process for providing a long window of the trunk member blank used for manufacturing the retort cup according to the same embodiment. It is a top view which shows the thermoplastic resin bonding process of the trunk
- FIG. 8B is a cross-sectional view taken along the line A-A ′ of FIG.
- FIG. 8A illustrating a thermoplastic resin laminating process of the body member blank used for manufacturing the retort cup according to the same embodiment. It is a top view which shows the process of stamping the trunk
- FIG. 9B is a cross-sectional view taken along the line A-A ′ of FIG. 9A showing a process of punching a body member blank used for manufacturing the retort cup according to the same embodiment into a predetermined shape and press-bonding the extended resin part. It is the schematic which shows the manufacturing process of the cup-shaped container which concerns on the 2nd Embodiment of this invention.
- FIG. 13B is a cross-sectional view taken along the line A-A ′ of FIG. 13A, illustrating a first punching process for providing a long window of the trunk member blank used for manufacturing the cup-shaped paper container according to the same embodiment.
- FIG. 14B is a cross-sectional view taken along the line A-A ′ of FIG. 14A showing a thermoplastic resin laminating step of the body member blank used for manufacturing the cup-shaped paper container according to the same embodiment.
- FIG. 15B is a cross-sectional view taken along the line A-A ′ of FIG. 15A showing a second punching process of the body member blank used for manufacturing the cup-shaped paper container according to the same embodiment.
- FIG. 20B is a cross-sectional view taken along the line X-X ′ of FIG. 20A showing a first punching process for providing a long window of the trunk member blank used for manufacturing the retort cup according to the same embodiment. It is a top view which shows the thermoplastic resin bonding process of the trunk
- FIG. 21B is a cross-sectional view taken along the line X-X ′ of FIG.
- FIG. 21A showing a thermoplastic resin bonding step of a trunk member blank used for manufacturing the retort cup according to the same embodiment. It is a top view which shows the 2nd punching process which punches the trunk
- FIG. 22B is a cross-sectional view taken along the line X-X ′ of FIG. 22A showing a second punching process of punching a body member blank having a resin portion used for manufacturing the retort cup according to the same embodiment into a predetermined shape.
- FIG. 23B is a cross-sectional view taken along line X-X ′ of FIG. 23A showing a step of bending and temporarily bonding a resin portion used for manufacturing the retort cup according to the embodiment to the outer surface side of the paper layer. It is a fragmentary sectional view which shows the blank used as the inner side of the trunk
- the retort cup according to the aspect of the present invention can perform edge protection on all the inner and outer surfaces of the retort cup by covering the inner and outer surfaces of the paper end surface of the body member with the film and folding the bottom of the body member. It has a configuration.
- edge protection of the body member joint part There are two methods for edge protection of the body member joint part: a method of folding the film and a simple method of not folding the film. Any method can be adopted as necessary for the inner surface side and the outer surface side of the paper end surface of both side edges of the body member.
- the method of folding the film is suitable when there is a layer that causes inconvenience when a metal layer or the like is exposed to the resin film layer because the contents do not contact the end face of the film.
- the method of removing the unnecessary part of the body member and not folding the film can also protect the paper edge of the base material.
- the bottom part curl after the bottom part is heated by the molding machine is curled until the end surface enters the inside, and the bottom part is sealed, so that the paper is also formed at the bottom part.
- Edge protection can be performed without exposing the end face of the substrate.
- the material processing process can be performed in the same manner as the current process.
- the retort cup which concerns on the 1st Embodiment of this invention is demonstrated below based on drawing.
- the retort cup according to the present embodiment is composed of a base sheet mainly composed of paper having inner and outer surfaces provided with a thermoplastic resin layer.
- FIG. 1 is a schematic diagram illustrating an example of a manufacturing process of a retort cup according to the present embodiment.
- the body member 18 is formed in a cylindrical shape having a body bonding portion 15.
- the trunk portion bonding portion 15 is formed by superposing one end edge 11 of the trunk member blank 10 on the other end edge 12.
- the body member blank 10 is provided with notches 31 and 32 at upper ends of both side edges, respectively.
- the bottom member 20 has a circular shape and has a peripheral edge portion 21 that is erected downward. The outer surface of the peripheral edge 21 of the bottom member 20 is joined to the lower inner surface of the body member 18.
- the lower end edge portion of the body member 18 is bent inward so as to cover the peripheral edge portion 21 and joined to the inner surface of the peripheral edge portion 21 of the bottom member 20 to form the annular leg portion 22.
- the flange portion 16 is formed by winding the upper peripheral edge of the body member 18 outward one or more times. In this way, a retort cup is formed.
- Such a structure is not limited to a tapered retort cup, and may be a cylindrical cup-shaped paper container.
- the retort cup according to the present embodiment is usually provided with a flange portion 16.
- the body member blank 10 provided with notches 31 and 32 at the upper ends of both side edges is used. Accordingly, when the flange portion 16 having at least a triple structure is formed by winding the upper peripheral edge of the barrel member 18 outward one or more times, the paper base (paper) is also formed at the upper end of the bonding portion 15 of the barrel member 18. (Layer) 1 is in a wrap-up state with the same triple structure as the portion other than the bonding portion 15.
- the position of the bonding portion 15 on the upper surface of the flange portion 16 is set.
- step difference which arises can be eliminated.
- FIG. 3A is a partial cross-sectional view illustrating a curled state of a lower end portion of a body member in a bottom bonding portion of the retort cup according to the present embodiment.
- FIG. 3B is a partial cross-sectional view showing a state where the curled state shown in FIG. 3A in the bottom bonding portion of the retort cup according to the present embodiment is thermocompression bonded.
- the peripheral edge portion 21 of the bottom member 20 is inserted into the lower inner surface of the cylindrical body member 18 produced by the body portion forming blank 10.
- the peripheral edge 21 of the bottom member 20 is formed by bending the peripheral edge of the bottom forming blank downward.
- the lower end portion 23 of the body member 18 is folded inward, and the upper portion is folded inward.
- the upper folded portion 24 and the lower folded portion 25 are formed.
- the bottom part of the retort cup which concerns on this embodiment will be in the state in which the lower end part 23 of the trunk
- the lower end portion 23 of the body member 18, the upper folded portion 24, and the peripheral portion 21 of the bottom member 20 are brought into close contact with each other and heat sealed to be joined to the inner surface of the peripheral portion 21 of the bottom member 20, thereby Is formed (FIG. 3B). Accordingly, the lower end portion 23 of the trunk member 18 is sealed by the inner surface of the peripheral edge portion 21 of the bottom member 20 and the trunk member near the upper folded portion 24 of the trunk member 18. As a result, entry of moisture and the like from this portion is prevented. Further, the end 21 a of the peripheral edge 21 may be separated from each of the upper folded portion 24 and the lower folded portion 25.
- FIG. 4A is a partial cross-sectional view showing a blank that is the inside of the body bonding portion of the retort cup according to the present embodiment.
- FIG. 4B is a partial cross-sectional view showing a blank on the outer side of the body bonding portion of the retort cup according to the present embodiment.
- FIG. 4C is a partial cross-sectional view showing a bonded portion after bonding in the retort cup according to the present embodiment.
- the trunk member blank 10 includes a thermoplastic resin layer 40 and a base material on the inner surface side of the inner base material edge 11 located on the inner side of the container in the body bonding portion 15.
- the thermoplastic resin layer 41 on the sheet outer surface side includes an edge extending piece (edge extending portion) 4 a that extends outward from the side edge of the paper substrate 1.
- the body member blank 10 includes a thermoplastic resin layer 40 on the inner surface side of the base sheet and a thermoplastic resin layer on the outer surface side of the base sheet at the outer base edge 12 positioned outside the container in the body bonding portion 15.
- 41 includes an edge extending piece (an edge extending portion) 4c extending outward from the side edge of the paper substrate 1.
- the edge extending piece 4a By setting the edge extending piece 4a to extend outward from the side edge of the paper substrate 1, the amount of resin in the body bonding portion 15 can be secured. As a result, the sealing property of the inner surface of the bonded portion is improved, and the barrier property of the paper substrate end surface is improved.
- drum bonding part 15 is securable by setting it as the structure which extended the edge extending piece 4c outward from the side edge of the paper base material 1.
- FIG. As a result, the sealing performance of the outer surface of the bonded portion is improved, and the barrier property of the paper substrate end surface is improved.
- the end surface of the paper base material located outside the body bonding portion 15 is protected by an edge extending piece 4c sealed by thermocompression bonding. For this reason, the contents filled in the container do not permeate from the end face of the paper base material, and an edge protection effect for preventing permeation of water from the outside of the container at the time of retorting or the like is obtained.
- the edge extending pieces 4a and 4c extending outwardly from the substrate end surface are formed by the thermoplastic resin layers 40 and 41 on both surfaces. It is formed in an integrated state at the outer edge.
- the edge extension piece 4a, 4c extends outward from the edge of the paper base 1 and is thermocompression-bonded, so that the step of the body bonding portion becomes the edge extension piece 4a. , 4c.
- it can be set as a structure without a level
- the edge extending piece 4a is formed by the thermoplastic resin layers 40 and 41 on both sides at the end of the paper base 1 bonded to the inside of the body bonding portion 15.
- the resin portion composed of the edge extending piece 4a is formed by simple thermocompression bonding.
- the resin portion composed of the edge extending piece 4a is composed of the resin portion composed of the edge extending piece 4c formed at the end of the outer paper base 1 and the vicinity of the end of the paper base 1. It is fixed in close contact with the thermoplastic resin layer 41 formed on the outer surface. Thereby, while being able to perform required edge part protection, a fixed amount of resin can be ensured in an adhesion part. Furthermore, when the end surfaces of the outer and inner paper bases 1 overlap with each other, the strength of the body bonding portion 15 can be ensured.
- the thermoplastic resin layer 40 may have a layer including a barrier layer.
- the end surface of the paper substrate 1 can be protected by the barrier layer by the configuration including the barrier layer.
- the retort cup excellent in barrier property can be provided.
- FIG. 5A is a partial cross-sectional view showing a blank which is an inner side of a body bonding portion of the retort cup according to the present embodiment.
- FIG. 5B is a partial cross-sectional view showing a blank that is outside the body bonding portion of the retort cup according to the present embodiment.
- FIG. 5C is a partial cross-sectional view showing a body bonding portion after bonding of the retort cup according to the present embodiment.
- FIG. 6A is a partial cross-sectional view showing a blank which is an inner side of a body bonding portion of the retort cup according to the present embodiment.
- FIG. 6B is a partial cross-sectional view showing a blank that is outside the body bonding portion of the retort cup according to the present embodiment.
- FIG. 6C is a partial cross-sectional view showing a body bonding portion after bonding of the retort cup according to the present embodiment.
- the body member blank 10 has a configuration in which one end edge 11 located on the inner surface side of the container in the body portion bonding portion 15 includes the folded resin portion 4b.
- the folded resin portion 4 b is formed by folding the resin portion 4 a to the outer surface side of the paper substrate 1 in the vicinity of the paper substrate 1.
- the resin portion 4 a is formed by a thermoplastic resin layer 40 on the inner side of the paper base and a thermoplastic resin layer 41 on the outer side of the paper base extending outward from the side edge of the paper base 1. .
- the other edge 12 located on the outer surface side of the container in the body bonding portion 15 is provided with a folded resin portion 4d.
- the folded resin portion 4 d is formed by folding the resin portion 4 c on the inner surface side of the paper substrate 1 in the vicinity of the paper substrate 1.
- the resin portion 4c is formed by a thermoplastic resin layer 40 on the inner side of the paper base material and a thermoplastic resin layer 41 on the outer side of the paper base material extending outward from the side edge of the paper base material 1. .
- the resin portion 4b has a configuration in which the resin portion 4a is folded back to the outer surface side of the paper base 1, so that the amount of resin in the body portion bonding portion 15 can be secured and the sealing property of the inner surface of the bonding portion is good. It becomes.
- the resin portion 4d has a configuration in which the resin portion 4c is folded back to the inner surface side of the paper substrate 1, the amount of resin in the body portion bonding portion 15 can be secured, and the sealing performance of the outer surface of the bonding portion is improved.
- the end portion of the resin portion 4a and the end portion of the resin portion 4c are shown as the resin portion end space 42 in FIGS. 6A to 6C, these end portions may overlap each other.
- the resin portion 4d can be configured to be folded back to the outer surface side of the paper substrate 1.
- the end surface of the paper base material located inside the trunk portion bonding portion 15 is folded by the folded resin portion 4b or thermocompression bonding as necessary. It is protected by the sealed resin portion 4a. Moreover, the end surface of the paper base material located outside the body portion bonding portion 15 is protected by a folded resin portion 4d or a resin portion 4c sealed by thermocompression as necessary. As a result, the contents filled in the container do not penetrate from the end surface of the paper base material, and the rigidity of the paper base material does not become weak even if liquid such as water adheres from the outside. As a result, it is possible to obtain an edge protection effect having properties excellent in water resistance.
- the retort cup according to the present embodiment uses a structure capable of obtaining such an edge protection effect for the end face treatment of the paper base material constituting the retort cup. For this reason, the end face of the retort cup according to the present embodiment is protected at all points, and has excellent water resistance.
- a plurality of fan-shaped body member blanks 10 are arranged and printed on a roll-shaped paper base material 1. Moreover, the outer part including the edge is drilled in both edge 11 and 12 of the trunk
- Thermoplastic resin layers 40 and 41 such as polyethylene resin are laminated on the inner side surface and the outer side surface of the paper base material 1 printed on the body member blank 10 and provided with the long windows 13 and 14 by a molten resin extrusion method. A laminated sheet is formed. At this time, resin portions 4a and 4c serving as edge extending pieces are formed by the two thermoplastic resin layers in the long window portion of the paper base 1 (see FIGS. 8A and 8B).
- thermoplastic resin layer 40 having a barrier layer on the inner surface of the paper substrate 1 on which the long windows 13 and 14 are formed by printing the trunk member blank 10 is laminated, while the barrier layer is included on the outer surface.
- a non-thermoplastic resin layer 41 is laminated to form a laminated sheet.
- the resin portions 4a and 4c serving as edge extending pieces are formed by the two thermoplastic resin layers in the long window portion of the paper base 1 (see FIGS. 8A and 8B).
- thermoplastic resin layer 40 While printing the body member blank 10 and laminating the thermoplastic resin layer 40 on the inner surface of the paper base material 1 in which the long windows 13 and 14 are perforated, heat resistance of polyethylene terephthalate, nylon or the like is applied on the outer surface.
- a laminated sheet may be formed by laminating the thermoplastic resin layer 41 having excellent wear resistance. Thereby, deficiencies such as pinholes that may occur during cup molding can be eliminated.
- barrier layer materials having excellent gas barrier properties such as aluminum foil, aluminum vapor-deposited plastic film, inorganic compound vapor-deposited plastic film, ethylene-polyvinyl alcohol copolymer film, polyethylene terephthalate film, and polyamide film can be used.
- Unnecessary portions of the trunk member blank 10 having the long window portions including the resin portions 4a and 4c are continuously cut from the laminated sheet.
- the resin portions 4a and 4c are edge extension pieces provided to extend outward from the paper base material 1.
- a plurality of fan-shaped body member blanks 10 printed from a laminated sheet from which unnecessary portions have been cut out are punched out, and each of the body members is formed with edge extending pieces 4a and 4c extending over the entire length of the joint portion.
- a blank 10 is produced. Through these steps, a body member blank 10 in which end edge extending pieces 4a and 4c extending outward from the paper substrate 1 by a predetermined width are formed on both side edges can be produced (FIG. 8A, see FIG. 8B).
- FIGS. 1, 3A, and 3B An example of a molding method for molding a retort cup using the trunk member blank 10 produced by such a method will be described (see FIGS. 1, 3A, and 3B).
- the inner base material edge 11 provided with the edge extending piece 4a on the end face of the body member blank 10 is set inside, and the outer base material edge 12 provided with the other edge extending piece 4c is predetermined. These are overlapped and joined so as to overlap. Thereby, the cylindrical trunk
- the peripheral part 21 of the bottom member (bottom part) 20 is inserted into the lower inner surface of the cylindrical body member 18 produced by the body part forming blank 10.
- the peripheral edge 21 is formed by bending the peripheral edge of the bottom forming blank downward.
- the lower end portion 23 of the body member 18 is folded inward, and the upper portion is folded inward.
- drum member 18 will be in the state located between the upper folding
- the lower end portion 23 of the body member 18, the upper folded portion 24, and the lower bent portion (not shown) of the bottom member are brought into close contact with each other and heat sealed to join the inner surface of the peripheral portion 21 of the bottom member 20.
- the annular leg portion 22 is formed (FIG. 3B).
- the retort cup according to the present embodiment is obtained by forming the flange portion 16 by winding the upper peripheral edge of the body member 18 outward one or more times.
- the flange portion 16 is not limited to the configuration in which the upper peripheral edge is wound outward one or more times.
- the flange portion 16 may have a flat upper surface by pressure bonding from above and below.
- the body member 18 uses the body member blank 10 provided with the notches 31 and 32 at the upper ends of both side edges. For this reason, when the flange portion 16 is formed by winding the upper peripheral edge of the body member 18 outward one or more times, also in the bonding portion 15, the paper base material 1 overlaps with the portions other than the bonding portion 15. It becomes a state of entrainment. As a result, the step of the flange portion 16 can be eliminated.
- the retort cup according to the present embodiment can be decorated by a known method.
- a retort cup can be manufactured using a base material provided with a decorative layer on the surface of a paper base material by printing such as normal gravure or offset, as a body blank.
- a retort cup can be manufactured using the laminated material which laminated
- the plastic film which gave the decoration layer by printing and metal vapor deposition can be coat
- the paper container which concerns on this embodiment is comprised from the lamination sheet which uses as a base material the paper by which the thermoplastic resin layer was provided in the inner surface and the outer surface, for example.
- FIG. 10 is a schematic view illustrating a manufacturing process of the cup-shaped container according to the present embodiment.
- the body member 218 is formed in a cylindrical shape having a body bonding part 215.
- the body portion bonding portion 215 is formed by overlapping one end edge 211 of the body member blank 210 on the other end edge 212.
- the body member blank 210 is provided with notches 231 and 232 at upper ends of both side edges.
- the bottom member 220 has a circular shape and has a peripheral edge portion 221 erected downward. The outer surface of the peripheral edge 221 of the bottom member 220 is joined to the lower inner surface of the body member 218.
- the lower end edge portion of the body member 218 is bent inward so as to cover the peripheral edge portion 221, and joined to the inner surface of the peripheral edge portion 221 of the bottom member to form the annular leg portion 222.
- the flange portion 216 is formed by winding the upper peripheral edge of the body member 218 outward one or more times. In this way, a cup-shaped paper container is formed.
- such a structure is not limited to a tapered cup-shaped paper container, and may be a cylindrical cup-shaped paper container. Furthermore, even in a paper container that requires edge protection of the paper base joint portion against the penetration of moisture from the contents and the external environment, the basic structure of the following joint portion is the same.
- FIG. 11A is a partial cross-sectional view showing a blank which is an inner side of a body bonding portion of the retort cup according to the present embodiment.
- FIG. 11B is a partial cross-sectional view showing a blank that is outside the body bonding portion of the retort cup according to the present embodiment.
- FIG. 11C is a partial cross-sectional view showing a body bonding portion after bonding of the retort cup according to the present embodiment.
- FIG. 12A is a partial cross-sectional view showing a blank which is an inner side of a body bonding portion of a retort cup according to the present embodiment.
- FIG. 12B is a partial cross-sectional view showing a blank that is outside the body bonding portion of the retort cup according to the present embodiment.
- FIG. 12C is a partial cross-sectional view showing a body bonding portion after bonding of the retort cup according to the present embodiment.
- the body member blank 210 is composed of the thermoplastic resin layer 240 and the paper base on the inner surface side of the paper base of one end 211 located on the inner surface side of the container in the body bonding portion 215.
- the thermoplastic resin layer 241 on the outer surface side of the material has a resin portion (edge extending portion) 204 a extending outward from the side edge of the paper base 201 and the paper base 201 in the vicinity of the paper base 201.
- a configuration having a folded resin portion 204b folded back to the outer surface side is provided.
- thermoplastic resin layer 240 on the paper substrate inner surface side and the thermoplastic resin layer 241 on the paper substrate outer surface side of the other edge 212 located on the outer surface side of the container in the body bonding portion 215 are made of paper.
- a configuration having a resin portion (edge extending portion) 204c extending outward from the side edge of the substrate 201 and a folded resin portion 204d folded back to the inner surface side of the paper substrate 201 in the vicinity of the paper substrate 201 Is provided.
- the resin portion 204b is configured such that the resin portion 204a is folded back to the outer surface side of the paper substrate 201, so that the amount of resin in the body portion bonding portion 215 can be secured. As a result, the sealing performance of the inner surface of the bonded portion is improved.
- the resin part 204d can ensure the resin amount in the trunk
- FIG. As a result, the sealing performance of the outer surface of the bonded portion is improved.
- the end portion of the resin portion 204a and the end portion of the resin portion 204c are shown as the resin portion end space 242 in FIGS. 11A to 11C, they may be overlapped.
- the resin portion 204d can be configured such that the resin portion 204c is folded back to the outer surface side of the paper base material 201.
- the other side of the paper base material positioned on the outer surface side of the container in the body bonding portion 215 depends on the degree of necessity of edge protection to the outside of the body bonding portion 15.
- the resin part 204c in which the thermoplastic resin layer 240 on the inner side of the paper base and the thermoplastic resin layer 241 on the outer side of the paper base extend outward from the side edge of the paper base 201. It is also possible to adopt a configuration in which the above is superposed on the thermoplastic resin 241 on the outer surface side of the paper base 201 on the inner surface side of the container and is pressure-bonded.
- the cup-shaped paper container according to the present embodiment has such a structure, the end surface of the paper base material 201 located inside the body bonding portion 215 is protected by the folded resin portion 204b. . Further, the end surface of the paper base material 201 located outside the body portion bonding portion 215 is protected by a folded resin portion 204d or a resin portion 204c sealed by thermocompression bonding. Thereby, not only does the content filled in the container not permeate from the end surface of the paper base material, but also an edge protection effect for preventing permeation from the outside of the container can be obtained.
- the resin portions 204a and 204c extending outward from the substrate end surface are integrated at the outer edges of the thermoplastic resin layers 240 and 241 on both surfaces. Formed.
- the resin portions 204a and 204c are provided with another member (for example, a tape) at the end portion of the base material instead of the structure formed by the thermoplastic resin layers 240 and 241 provided on both surfaces of the paper base material 201. In the same manner as described above, it may be integrated at the outer edge.
- one of the resin parts 204a and 204c may be a thermoplastic resin layer provided on the paper base material 201, and the other may be a tape and may be integrated at the outer edge in the same manner as described above.
- the resin part 204a can be configured to have a folded resin part 204b folded back to the outer surface side of the paper base 201 instead of the structure extending outward from the edge of the paper base 201 as described above.
- the resin portion 204c can be configured to extend outward from the edge of the paper substrate and perform thermocompression bonding, or to have a folded resin portion 204d that is folded back to the outer surface side or the inner surface side of the paper substrate.
- the bonding resin portion 215 of the body member 218 on the inner surface side of the container has the folded resin portion 204b that is turned back to the outer surface side or the inner surface side of the paper base material 201. And is filled with the folded resin portion 204b.
- it can be set as a structure without a level
- the step of the body bonding portion 215 is filled with the outer extending resin portion 204c by the configuration in which the resin portion 204c extends outward from the edge of the paper base 201 and is thermocompression bonded.
- the step of the body bonding portion 215 can be set as a structure without a level
- the resin portion 204c has a folded resin portion 204d that is folded back from the edge of the paper base material 201 to the outer surface side of the paper base material 201, the step of the body bonding portion 215 is changed to the folded resin portion 204d. Filled with. As a result, it can be set as a structure without a level
- the flange portion 216 is usually provided in the cup-shaped paper container according to the present embodiment.
- a body member blank 210 provided with notches 231 and 232 at the upper ends of both side edges is used. Accordingly, when the flange portion 216 having at least a triple structure is formed by winding the upper peripheral edge of the body member outward one or more times, the base material is bonded to the upper end of the bonding portion 215 of the body member 218 as well. It becomes the entrainment state of the triple structure similar to the parts other than the part.
- the position of the bonding portion 215 on the top surface of the flange portion 216 is determined. Can be eliminated.
- the thermoplastic resin layer 240 may have a layer including a barrier layer.
- the end surface of the paper substrate 201 is protected by the barrier layer by the configuration including the barrier layer 202a. Thereby, a cup-shaped paper container excellent in barrier properties can be provided.
- the end face of the barrier layer 202a is not exposed to the inside of the container due to the configuration in which the resin part 204a including the barrier layer includes the folded resin part 204b. Thereby, since the contents do not come into contact with the barrier layer, the contents are not adversely affected.
- the folded resin portions 204b and 204d are configured such that the front ends of the resin portions are folded back to the outer surface side or the inner surface side of the paper base material 201 inside the bonding portion 215 or the outer side of the paper base material 201 outside the bonding portion 215. ing. For this reason, even when the thermoplastic resin layer 240 includes the barrier layer 202a made of a different material, when the body portion is formed, a certain amount of resin for bonding can be secured in the body portion bonding portion 215. . As a result, not only the end face of the paper base material 201 can be protected, but also the level difference caused by the paper base material 201 of the body bonding portion 215 can be eliminated.
- thermoplastic resin layer 241 such as polyethylene is provided on the outer side surface of the paper base material 201
- thermoplastic resin layer 240 is provided on the inner side surface of the paper base material 201.
- a resin portion 204c is formed of thermoplastic resin layers 240 and 241 on both sides at the end portion of the paper base material 201 bonded to the outside of the body portion bonding portion 215. If there is no need to prevent moisture or the like from entering from the outside of the container, the resin portion 204c is formed by simple thermocompression bonding, and then the resin portion 204b formed at the end of the inner paper base 201 or heat The plastic resin layer 241 is fixed in close contact. Thereby, necessary end part protection and a certain amount of resin can be secured at the bonding part, and when the trunk part is formed, the step of the trunk part bonding part 215 can be eliminated.
- the end surface of the barrier layer 202a is not exposed inside the container.
- the thermoplastic resin layer 240 includes the barrier layer 202a made of a different material, the contents do not come into contact with the barrier layer. For this reason, it does not have a bad influence on preservation of contents.
- the rigidity of the paper base material does not become weak, so that a cup-shaped paper container having excellent water resistance can be provided.
- such a structure is not limited to a tapered cup-shaped paper container, and may be a cylindrical cup-shaped paper container. Further, it can be used for a paper container that requires edge protection of a bonded portion.
- a plurality of fan-shaped body member blanks 210 are arranged and printed on a roll-shaped paper base material 201.
- the outer portions of the body member blank 210 including the edges are drilled as long windows 213 and 214 (see FIGS. 13A and 13B) (first punching step).
- Thermoplastic resin layers 240 and 241 made of polyethylene resin or the like are laminated on the inner side surface and the outer side surface of the paper base material 201 on which the long windows 213 and 214 are formed by printing the trunk member blank 210 by a molten resin extrusion method.
- the laminated sheet 203 is formed.
- the resin portions 204a and 204c are formed on the long window portion of the paper base material 201 by the two thermoplastic resin layers (see FIGS. 14A and 14B) (thermoplastic resin bonding step).
- thermoplastic resin layer 240 having the barrier layer 202a is laminated on the inner side surface of the paper base material 201 on which the long windows 213 and 214 are formed by printing the trunk member blank 210, while the barrier layer is provided on the outer side surface.
- the laminated sheet 203 is formed by laminating the thermoplastic resin layer 241 not included.
- the resin portions 204a and 204c are formed by the two thermoplastic resin layers in the long window portion of the paper base material 201 (see FIGS. 14A and 14B) (thermoplastic resin bonding step).
- barrier layer 202a a material having excellent gas barrier properties, such as aluminum foil, aluminum vapor-deposited plastic film, inorganic compound vapor-deposited plastic film, ethylene-polyvinyl alcohol copolymer film, polyethylene terephthalate film, and polyamide film can be used. .
- Unnecessary portions are continuously cut from the laminated sheet 203 on the body member blank 210 formed with the long window portion including the resin portions 204a and 204c provided to extend outward from the paper base material 201 (FIG. 15A and FIG. 15B) (scrap cutting step).
- the trunk member blank 210 is formed with a long window portion including resin portions 204 a and 204 c provided to extend outward from the paper base material 201.
- a plurality of printed fan-shaped body member blanks 210 are punched out from the laminated sheet 203 from which unnecessary portions have been cut out, and the body member blanks 210 each having the resin portions 204a and 204c formed therein are produced ( FIG. 15A and FIG. 15B) (second punching step).
- the body member blank 210 in which the resin portions 204a and 204c extending outward from the paper base 201 by a predetermined width are formed on both side edges can be produced.
- FIG. 16 is a perspective view illustrating an example of a temporary bonding mechanism that bends and temporarily bonds the resin portion according to the present embodiment to the outer surface side of the paper base material.
- 17A to 17D are partial cross-sectional views showing a process of bending and temporarily bonding the resin portion according to the present embodiment to the outer surface side of the paper base material.
- the method of forming the folded resin portion 204d by bringing the resin portion 204c into close contact with the end surface of the paper substrate is the same.
- the method in which the resin portion 204c is pressure-bonded at a portion extending outward from the paper substrate end surface by a predetermined width is a simpler process than the method of forming the folded resin portion 204d. Therefore, description of this method is omitted.
- the first member D201 When the resin layer 204a is molded into the retort cup, the first member D201 is moved vertically from the upper side to the lower side toward the outer surface side of the paper base material 201, and is bent at an angle of about 90 °. Temporary folding is performed (see FIGS. 17A and 17B).
- the resin layer 204a extends by a predetermined width from the paper base 201 that is inside the bonding portion 215 of the body member blank 210.
- the first member D201 includes a pressing protrusion D211 formed in a comb shape.
- the second member D202 is horizontally moved from the outer side of the body member blank 210 to the inner side toward the gap D212 between the pressing projection D211 and the pressing projection D211 of the first member D201. Thereafter, the resin layer 204a is bent by approximately 90 ° so that the resin layer 204a has a folded resin portion 204b and is temporarily folded so as to overlap the opposite surface direction of the paper base 201 of the body member blank 210 (see FIG. 17C). ).
- the second member D202 includes a pressing protrusion D221 formed in a comb shape.
- the third member D203 is vertically pressed and pressure-bonded, and the folded resin portion 204b is temporarily bonded to the outer surface side of the paper base 201 of the body member blank 210 (see FIG. 17D).
- the third member D203 includes a pressing projection D231 disposed below the first member D201 and formed in a comb shape.
- the folded resin portion 204d can be formed in a similar manner if necessary.
- the pressing protrusion D231 of the third member D203 is heated to an appropriate temperature, the adhesiveness of the resin portion is improved, which is more effective.
- the paper substrate end face can be sealed by simple crimping using this apparatus.
- the side end edge 211 provided with the folded resin portion 204b on the end surface of the body member blank 210 is set to the inner surface side, and is overlapped and joined to the side end edge 212 provided with the other folded resin portion 204d.
- a cylindrical body member 218 having 215 is formed.
- the outer surface of the peripheral edge 221 of the bottom member 220 is joined to the lower inner surface of the body member 218. Further, the lower end edge portion of the body member 218 is bent inward so as to cover the peripheral edge portion 221, and joined to the inner surface of the peripheral edge portion 221 of the bottom member to form the annular leg 222.
- the upper peripheral edge of the body member 218 is wound outward one or more times to form the flange portion 216. In this way, the cup-shaped paper container according to the present embodiment is formed.
- the flange portion 216 may have a configuration in which the upper surface is flattened by pressing and pressing the flange portion 216 from above and below, instead of the configuration in which the upper peripheral edge is wound one or more rounds outward as described above.
- the body member 218 uses the body member blank 210 in which the notch portions 231 and 232 are respectively provided on the upper edges of the both side edges, the flange portion 216 is formed by winding the upper periphery of the body member 218 outward one or more times.
- the paper base 201 is in an overlapping state similar to the part other than the bonding part 215. For this reason, the level
- the paper container which concerns on this embodiment can be decorated by a well-known method.
- a paper container can be manufactured by using the paper base 201 provided with a decorative layer as the body blank 210 by printing such as normal gravure or offset on the surface of the paper base 201.
- a paper container can be manufactured using the laminated material which laminated
- the plastic film which gave the decoration layer by printing and metal vapor deposition can be coat
- the retort cup which concerns on the 3rd Embodiment of this invention is demonstrated below based on drawing.
- the retort cup according to the present embodiment includes, for example, a laminated sheet 403 based on a paper layer 401 in which a thermoplastic resin layer 440 is provided on at least an inner surface.
- FIG. 19 is a schematic view illustrating a manufacturing process of the retort cup according to the embodiment.
- the retort cup according to the present embodiment includes a body member 418 and a bottom member 420.
- the body member 418 is formed in a substantially cylindrical shape having a body portion bonding portion 415 in which one end edge 411 of the body member blank 410 is overlapped with the other end edge 412.
- the trunk member blank 410 is provided with a notch 431 at the upper side edge.
- the bottom member 420 has a circular shape and has a peripheral edge portion 421 erected downward. Then, the outer surface of the peripheral portion 421 of the bottom member 420 is joined to the lower inner surface of the body member 418.
- the lower end edge portion of the body member 418 is bent inward so as to cover the peripheral edge portion 421 and joined to the inner surface of the peripheral edge portion 421 of the bottom member to form the annular leg portion 422.
- the flange portion 416 is formed by winding the upper peripheral edge of the body member outward one or more times. A retort cup is thus formed.
- such a structure is not limited to a tapered retort cup, and may be a cylindrical cup-shaped paper container.
- the body member blank 410 has at least one thermoplastic resin layer 440 on the inner surface side extended on one end edge 411 to the outside of the side edge of the paper layer 401.
- An extended resin portion (edge extending portion) 404a is formed.
- 24A to 24C show an example in which an extended resin portion is provided on the thermoplastic resin layer 441 on the outer surface side as well as the inner surface side.
- a notch 431 is provided in a portion of the paper layer 401 above one end edge 411.
- the notch 431 portion of the extended resin portion 404a is formed as a layer made of only the resin containing the thermoplastic resin without the paper layer 401.
- the extended resin portion 404a may not only extend outward from the end of the paper layer 401 but also have a folded resin portion 404b.
- the folded resin portion 404 b is formed by folding the extended resin portion 404 a to the outer surface side of the paper layer 401 in the vicinity of the paper layer 401.
- the portion formed in the notch 431 of the extended resin portion 404a is a folded resin portion 404b made of a resin-only layer without the paper layer 401. For this reason, when the flange part 416 above the trunk
- the width of the extended resin portion 404a is preferably equal to or greater than the thickness of the paper layer 401. More preferably, the width of the extended resin portion 404 a is preferably equal to or greater than the thickness of the body member blank 410.
- the extended resin portion 404a extending outward from the side edge of the paper layer 401 is provided on one side edge of the body member blank 410, but as shown in FIGS. 25A to 25C.
- the extended resin portion 404a may be provided on both side edges. With such a configuration, it is possible to prevent moisture and the like from entering from the end face of the paper layer outside the bonded portion 415 and to impart more effective barrier properties.
- the retort cup according to the present embodiment has such a structure, the end surface of the paper layer located inside the trunk portion bonding portion 415 is protected by the extended resin portion 404a or the folded resin portion 404b. ing. As a result, the content filled in the container does not penetrate from the end face of the paper layer.
- the thermoplastic resin layer 440 may be provided not only on the inner surface side of the paper layer 401 but also on the outer surface side. In this way, by providing the thermoplastic resin layers 440 and 441 on both sides of the paper layer, the extended resin portion 404a formed on the end surface of the base material integrates the thermoplastic resin layers 440 and 441 on both sides at the outer edge. Formed.
- the extended resin portion 404a may be provided with another member such as a thermoplastic resin tape at the end of the paper layer instead of the method of forming with the thermoplastic resin layer provided on the paper layer. Similarly, it may be formed integrally at the outer edge.
- the extended resin portion 404a may be formed by using a thermoplastic resin layer provided on one paper layer and using a thermoplastic resin tape on the other and integrally forming at the outer edge in the same manner as described above.
- the extended resin portion 404a may be provided with a notch portion in which a paper layer is notched in the upper corner portion of the body member blank. In this case, the sealing performance of the flange portion can be improved. Further, as described above, when the extended resin portion 404a extends outward from the edge of the paper layer, both end edges of the body member can be protected.
- FIG. 27A to 27C are plan views showing the shape of the extended resin layer of the trunk member blank used for manufacturing the retort cup according to the embodiment.
- the notch 431 of the paper layer at the upper corner is rectangular, and the extended resin portion 404 is formed only in the rectangular notch. Shows the case.
- FIG. 27B shows a case where there is an extended resin portion 404 from both end edges 411 and 412 of the body member, as in the blank shown in FIG. 22A, and the notch portion 431 of the paper layer at the upper corner is triangular. Shows the case.
- FIG. 27C shows a case where the notch portion 431 of the paper layer at the corner above the blank is a triangle and there is no extending resin portion 404 from the body member side edges 411 and 412.
- the shape of the cutout portion 431 of these paper layers and the presence or absence of the extended resin portion 404 from the side edge portions 411 and 412 of the body member are appropriately selected depending on the required degree of barrier property and the degree of sealing property.
- the extended resin portion is not simply configured to extend outward, but has a folded resin portion 404b as shown in FIGS. 24A to 24C. Is preferred.
- the folded resin portion 404b is formed by folding the extended resin portion 404a to the outer surface side of the paper layer.
- a folded resin portion 404d as shown in FIGS. 25A to 25C in order to enhance the barrier property against moisture or the like from the outside.
- the folded resin portion 404d is formed by folding the extended extended resin portion (edge extending portion) 404c to the inner surface side of the paper layer.
- the step of the body portion bonding portion is filled with the folded resin portion, and a configuration without a step can be obtained. Furthermore, it can be set as the structure by which the end surface of the said folding
- the body member 418 is overlapped so that the side edge provided with the extended resin portion 404a of the body member blank 410 is on the inside, and heated and pressed to form the body bonding portion 415. Is formed.
- the body member blank 410 is provided with a notch 431 of a paper layer at the upper end of one side, and a thermoplastic resin coating is extended to that portion.
- the cutout portion 431 of the paper layer at the side end portion where the extended resin portion 404a is provided is present in a state where a thermoplastic resin film is overlaid. For this reason, it is possible to supply a sufficient amount of thermoplastic resin to fill and seal the gap in the joint portion of the flange portion.
- the upper surface of the flange portion 416 is flattened, the upper surface of the joint portion of the flange portion is continuously formed from the resin above the body portion bonding portion 415. Thereby, the level
- the retort cup according to the present embodiment can be configured such that the thermoplastic resin layers 440 and 441 include a barrier layer.
- the end surface of the paper layer 401 is protected by the barrier layer by the structure in which the thermoplastic resin layers 440 and 441 include the barrier layer.
- barrier layer a layered material having excellent gas barrier properties such as aluminum foil, aluminum vapor-deposited plastic film, inorganic compound vapor-deposited plastic film, ethylene-polyvinyl alcohol copolymer film, polyethylene terephthalate film, and polyamide film can be used.
- thermoplastic resin layer 441 such as polyethylene is provided on the outer side surface of the paper layer 401 and thermoplastic resin layers 440 and 441 are provided on both sides of the paper layer can be employed.
- thermoplastic resin layers are provided on both the outer side surface and the inner side surface of the paper layer 401, the inner surfaces at the ends of the thermoplastic resin layers 440 and 441 on both sides can be integrated to form the extended resin portion 404a. it can.
- the folded resin portion 404b formed by the thermoplastic resin layers 440 and 441 on both sides has a configuration in which the extended resin portion 404a is further folded to the outer side of the paper layer.
- thermoplastic resin layer 440 includes a barrier layer made of a material different from that of the thermoplastic resin
- the end surface of the barrier layer is not exposed inside the container due to the folded configuration. Thereby, since the contents do not come into contact with the barrier layer, the contents are not adversely affected.
- folded resin portions 404b and 404d are provided, and these folded resin portions 404b and 404d are formed by extending the extended resin portions (edge extending portions) 404a and 404c, respectively. It may be formed by folding back to the outer surface side of the layer.
- the folded resin portions 404b and 404d provided at both ends of the body member blank 410 are folded back to the outer surface side of the paper layer, it is possible to easily realize the folding of the two folded resin portions simultaneously. . That is, since the extended resin portions at both ends are folded back in the same direction to form the folded resin portion, it is not necessary to switch the folding direction in this folding step. For this reason, the process of forming the folded resin portions at both ends is shortened. As a result, the manufacturing process of a retort cup is shortened and productivity can be improved.
- a plurality of fan-shaped body member blanks 410 are arranged and printed on a roll-shaped paper layer 401.
- An outer portion including the end edge is formed as a long window 413 in one end edge 411 of the body member blank.
- the long window has a shape including a notch 431 and a rectangular portion outside the end edge 411 at the top. (See FIGS. 20A and 20B) (first punching step).
- thermoplastic resin layer 440, 441 such as polyethylene resin is laminated on the inner side surface and the outer side surface of the paper layer 401 on which the long window 413 is formed by printing the trunk member blank 410, and a laminated sheet. 403 is formed.
- the extended resin portion 404a is formed on the long window portion of the paper layer 401 by the two thermoplastic resin layers (see FIGS. 21A and 21B) (thermoplastic resin bonding step).
- a portion unnecessary for the body member blank 410 on the side on which the long window portion including the extended resin portion 404 a provided to extend outward from the paper layer 401 is continuously cut from the laminated sheet 403.
- a plurality of fan-shaped body member blanks 410 printed from the laminated sheet 403 from which unnecessary portions on one side are cut out are punched, and each body member blank 410 formed with the extended resin portion 404a is punched out. (See FIGS. 22A and 22B) (second punching step).
- the extended resin portion 404a is folded and temporarily bonded, thereby producing a body member blank 410 on which the folded resin portion 404b is formed. (Refer FIG. 23A and FIG. 23B) (resin part bending process).
- the extended resin portion 404a is provided to extend outward from the body member blank 410 one by one.
- the body member blank 410 in which the resin portion 404b is formed on one side edge can be produced.
- the resin portion 404b is formed by bending the extended resin portion 404a of the long window portion 413 that extends outward from the edge of the paper layer 401 by a predetermined width. At this time, the extending resin portion in the region of the cutout portion 431 of the paper layer is folded back with this resin portion overlapped. The other extended resin portions are folded inward from the end face of the paper layer.
- the retort cup according to the present embodiment uses a body member blank 418 in which a body member 418 is provided with a thermoplastic resin coating on a notch 431 at an upper end edge. Therefore, when the flange portion 416 is formed by winding the upper peripheral edge of the body member 418 outward one or more times, a sufficient amount of thermoplastic resin necessary for bonding is also present in the bonding portion 415. As a result, there is no gap and the step of the flange portion can be eliminated.
- the level difference generated on the upper surface of the flange portion can be eliminated. Can be prevented.
- FIG. 28 is a plan view showing a shape of a trunk member blank used for manufacturing the retort cup according to the embodiment.
- the body member blank 410 is provided with notched portions 431 and 432 of the paper layer at the upper corner.
- the body member blank is further provided with a paper layer notch 433 below the body member edge 411.
- the paper base material has the same overlapped state as the portion other than the bonding portion. Become. Thereby, the level
- Example 1 A long window was formed on a sheet made of a paper substrate (basis weight 260 g / m 2 ). Next, a low density polyethylene layer (30 ⁇ m) was provided on the surface of the paper substrate of the sheet. A low density polyethylene layer (30 ⁇ m) / aluminum foil (9 ⁇ m) / polyethylene terephthalate film (12 ⁇ m) / low density polyethylene layer (70 ⁇ m) was provided on the back surface of the paper substrate. Then, the inner surface of the low density polyethylene layer was joined and integrated at the position of the long window.
- This sector shape has a triangular cutout portion having a width of 9 mm and a height of 5 mm on the upper side edge on one side of the paper substrate.
- This sector shape has a triangular notch portion having a width of 8 mm and a height of 6 mm at the upper part of the other side end.
- variety of the resin part provided in both the side edge is 5 mm.
- drum blank 10 which has an edge extension piece resin part was formed.
- the side edges of the blank having the edge extending piece resin portion were integrated by overlapping and joining so that the overlapping length L was 5 mm.
- drum bonding part was formed.
- the bottom member 20 has a circular shape and has a peripheral edge portion 21 that is erected downward. And the outer surface of the peripheral part 21 of the bottom member 20 was joined to the lower inner surface of the said trunk
- the top curl unit wound the upper opening of the body member 18 one or more times to form a retort cup having an opening diameter of 69 mm.
- This retort cup has a flange portion 16 having a width of 3 mm, in which the lower half is single wound and the upper half is double wound.
- the retort cup was formed without a step at a portion located on the body bonding portion on the upper surface of the body bonding portion 15 and the flange portion 16. Moreover, the strength and water resistance of the bonded portion at the body portion and the bottom portion were sufficient, and no abnormality such as swelling of the paper base material was observed even when immersed in water and cooled. (Example 2)
- the flange part 16 of the retort cup of Example 1 was pressure-bonded from above and below using an ultrasonic sealing device to flatten the upper surface of the flange.
- the retort cup was formed without a step at the portion located on the body bonding portion 15 on the upper surface of the flange portion 16, although the upper surface of the flange portion 16 was flattened.
- the strength and water resistance of the bonded portion at the body portion and the bottom portion were sufficient, and no abnormality such as swelling of the paper base material was observed even when immersed in water and cooled. (Example 3)
- a long window was formed on a sheet composed of a paper base material (basis weight 260 g / m 2 ) / low density polyethylene (30 ⁇ m) / aluminum foil (9 ⁇ m) / polyethylene terephthalate film (12 ⁇ m).
- a low density polyethylene layer (30 ⁇ m) was provided on the surface of the paper base of the laminated sheet, while a polyethylene layer (70 ⁇ m) was provided on the polyethylene terephthalate film surface. Then, the inner surface of the said low density polyethylene layer was joined and integrated with the said long window.
- This sector shape has a triangular notch portion with a width of 9 mm and a height of 5 mm on the upper side edge edge on one side of the paper substrate, while a width of 8 mm and a height on the upper side edge portion on the other side. It has a 6 mm triangular notch.
- the resin part used as the edge extending piece provided in both the side edges was provided by 5 mm width, and it crimped
- the side edge having the edge extension piece of the blank is overlapped by 5 mm, and the edge extension piece is pressure-bonded and joined to the substrate surface to be integrated, and the body part is formed by forming the body bonding part 15. did.
- the bottom member 20 has a circular shape and has a peripheral edge portion 21 that is erected downward. And the outer surface of the peripheral part 21 of the bottom member 20 was joined to the lower inner surface of the said trunk
- a retort cup with an opening diameter of 69 mm was formed by the top curl unit.
- the retort cup has a flange portion 16 having a width of 3 mm, in which the upper opening is wound one or more times, the lower half is single wound and the upper half is double wound.
- the retort cup was formed without a step at a portion located on the body bonding portion on the upper surface of the body bonding portion 15 and the flange portion 16. Moreover, the strength and water resistance of the bonded portion at the body portion and the bottom portion were sufficient, and no abnormality such as swelling of the paper base material was observed even when immersed in water and cooled.
- Example 4
- low-density polyethylene layer (30 ⁇ m) / paper base material (basis weight 260 g / m 2 ).
- low-density polyethylene (30 ⁇ m) / aluminum foil (9 ⁇ m) / polyethylene terephthalate film (12 ⁇ m) / low-density polyethylene layer (15 ⁇ m) is provided on the back surface of the paper substrate, and the long window portion on the surface of the sheet paper substrate is provided. It was provided to cover.
- the bottom member 20 has a circular shape and has a peripheral edge portion 21 that is erected downward.
- the outer surface of the peripheral edge portion 21 of the bottom member 20 was joined to the lower inner surface of the barrel member 18 using a cup molding machine. Further, the body member 18 is bent inward so as to cover the peripheral edge 21, and the lower edge is between the upper folded part 24 of the body member 18 and the downward bent part 21 of the peripheral edge of the bottom forming blank. It was in the state located in. In this state, the annular leg portion 22 having a diameter of 52 mm was formed by bonding to the inner surface of the peripheral edge portion 21 of the bottom member 20.
- a retort cup with an opening diameter of 69 mm was formed by the top curl unit.
- the retort cup has a flange portion 16 having a width of 3 mm, in which the upper opening is wound one or more times, the lower half is single wound and the upper half is double wound.
- the retort cup was formed without a step at a portion located on the body bonding portion 15 on the upper surface of the flange portion 16. Further, the strength of the bonded portion of the body portion and the bottom portion was sufficient, and no abnormality such as swelling of the paper base material was observed even when immersed in water and cooled.
- Example 5 From the front side, a long window was formed on a sheet made of a paper base material (basis weight 260 g / m 2).
- a low density polyethylene layer (30 ⁇ m) is formed on the surface of the paper substrate of the sheet, and a low density polyethylene layer (30 ⁇ m) / aluminum foil (9 ⁇ m) / polyethylene terephthalate film (12 ⁇ m) / low density is formed on the back surface of the paper substrate.
- a polyethylene layer 70 ⁇ m was provided. Then, the inner surface of the low density polyethylene layer was joined and integrated at the position of the long window.
- This sector shape has a triangular cutout portion having a width of 9 mm and a height of 5 mm on the upper side edge on one side of the paper substrate.
- This sector shape has a triangular notch portion having a width of 8 mm and a height of 6 mm at the upper part of the other side end.
- the width of the resin portion provided on both side edges is 5 mm. In this manner, a body blank having a folded resin portion extending 2.5 mm was formed.
- the side edge of the blank having the folded resin portion was overlapped and joined to be integrated, and a trunk portion was provided to form a trunk portion.
- the bottom member 220 has a circular shape and includes a peripheral edge portion 221 that is erected downward.
- the outer surface of the peripheral portion 221 of the bottom member 220 was joined to the lower inner surface of the barrel member 218 using a cup molding machine. Further, the lower end edge portion of the body member 218 was bent inward so as to cover the peripheral edge portion 221, and joined to the inner surface of the peripheral edge portion 221 of the bottom member to form an annular leg portion 222 having a diameter of 52 mm.
- the top curl unit wound the upper opening one or more times to form a cup-shaped paper container having an opening diameter of 69 mm.
- This cup-shaped paper container has a flange portion 216 having a width of 3 mm, in which the lower half is single wound and the upper half is double wound.
- the cup-shaped paper container was formed without a step in the portion located on the body bonding portion on the upper surface of the body bonding portion and the flange portion.
- Example 6 The flange portion 216 of Example 5 was pressure-pressed from above and below using an ultrasonic sealing device, and the upper surface of the flange portion 216 was flattened.
- the cup-shaped paper container was molded without a step at a portion located on the body bonding portion on the upper surface of the flange portion 216, although the upper surface of the flange portion 216 was flattened.
- Example 7 From the front side, a long window was formed on a sheet made of a paper base material (basis weight 260 g / m 2 ) low density polyethylene (30 ⁇ m) / aluminum foil (9 ⁇ m) / polyethylene terephthalate film (12 ⁇ m).
- a low density polyethylene layer (30 ⁇ m) was provided on the paper substrate surface of the laminated sheet, and a polyethylene layer (70 ⁇ m) was provided on the polyethylene terephthalate film surface. Then, the inner surface of the said low density polyethylene layer was joined and integrated with the said long window.
- This sector shape has a triangular cutout portion having a width of 9 mm and a height of 5 mm on the upper side edge on one side of the paper substrate.
- This sector shape has a triangular notch portion having a width of 8 mm and a height of 6 mm at the upper part of the other side end.
- the width of the resin portion provided on one side edge is 5 mm.
- the width of the folded resin portion is 2.5 mm.
- the resin part provided on the other side edge had a width of 5 mm and was crimped without being folded back.
- the extended resin portion is pressure-bonded to the inner base material surface and joined and integrated, and a trunk portion laminating portion having a width of 5 mm is provided. Formed.
- the outwardly extending resin portion is provided on the outer side edge by overlapping the side edges.
- the bottom member 220 has a circular shape and includes a peripheral edge portion 221 that is erected downward.
- the outer surface of the peripheral portion 221 of the bottom member 220 was joined to the lower inner surface of the barrel member 218 using a cup molding machine. Further, the lower end edge of the body member 218 was bent inward so as to cover the peripheral portion 221, and joined to the inner surface of the peripheral portion 221 of the bottom member 220 to form an annular leg portion 222 having a diameter of 52 mm.
- the top curl unit wound the upper opening one or more times to form a cup-shaped paper container having an opening diameter of 69 mm.
- This cup-shaped paper container has a flange portion 216 having a width of 3 mm, in which the lower half is single wound and the upper half is double wound.
- the cup-shaped paper container was formed without a step in the portion located on the body bonding portion on the upper surface of the body bonding portion 215 and the flange portion 216.
- Example 8 The flange portion 216 of Example 7 was pressure-bonded from above and below using an ultrasonic sealing device, and the upper surface of the flange portion 216 was flattened.
- Example 9 From the front side, long windows were formed on a sheet composed of a low-density polyethylene layer (30 ⁇ m) / paper base material (basis weight 260 g / m 2 ).
- low-density polyethylene (30 ⁇ m) / aluminum foil (9 ⁇ m) / polyethylene terephthalate film (12 ⁇ m) / low-density polyethylene layer (15 ⁇ m) is covered on the back surface of the paper base so as to cover the long window portion on the surface of the paper base.
- This sector shape has a triangular notch portion having a width of 9 mm and a height of 5 mm on the upper side edge of the paper substrate on one side.
- This sector shape has a triangular notch portion having a width of 8 mm and a height of 6 mm at the upper part of the other side end.
- the width of the resin part provided on both side edges is 5 mm.
- the width of the folded resin portion is 2.5 mm.
- the side edge having the resin layer of the blank was overlapped and joined to be integrated, and the body part was provided to form the body part.
- the bottom member 220 has a circular shape and includes a peripheral edge portion 221 that is erected downward.
- the outer surface of the peripheral portion 221 of the bottom member 220 was joined to the lower inner surface of the barrel member 218 using a cup molding machine. Further, the lower end edge of the body member 218 was bent inward so as to cover the periphery 221 and joined to the inner surface of the periphery 221 of the bottom member to form an annular leg 222 having a diameter of 52 mm.
- the top curl unit wound the upper opening one or more times to form a cup-shaped paper container having an opening diameter of 69 mm.
- This cup-shaped paper container has a flange portion 216 with a width of 3 mm, in which the lower half is single wound and the upper half is double wound.
- the cup-shaped paper container was formed without a step in the portion of the upper surface of the flange portion 216 located at the body bonding portion 215.
- Example 10 The flange portion 215 of Example 9 was pressure-bonded from above and below using an ultrasonic sealing device, and the upper surface of the flange portion 216 was flattened.
- the cup-shaped paper container was molded without a step at the portion located at the body bonding portion 215, although the upper surface of the flange portion 216 was flattened.
- a retort cup having a beautiful finished appearance as a retort cup and having excellent water resistance, sealing properties and barrier properties.
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Abstract
Description
本願は、2009年6月23日に、日本に出願された特願2009-148498号に基づき優先権を主張し、その内容をここに援用する。
さらに、このフランジ部の上面に蓋材を重ねてシールすることができるので、密封性の必要な用途のカップ状紙容器に適している。
この扁平状態にする手段は、通常の加熱加圧手段のほか、超音波手段を採用することができる。
また、本発明の別の態様は、耐水性と密封性が優れたレトルトカップ等の紙容器の提供を目的とする。
さらに、内側の端縁延設部がレトルトカップの外側に折り返されて外側の端縁との間に位置する状態で圧着されていることによって、胴部の基材の接合面におけるバリア性がより確実に向上する。
また、レトルトカップの底部についても、胴部材の底部のカーリング量を増して端部を胴部材と底部材との間に挟みこんで封止することにより、底部での胴部材の端面の露出がなくなる。これによって、レトルトカップのすべてのエッジのプロテクトが可能になり、今までレトルトカップが使用できなかった分野(レトルト、トイレタリー、調味料、サプリメント、他)へレトルトカップを適用することができる。
本発明の第1の実施形態に係るレトルトカップを、図面に基づいて以下に説明する。
本実施形態に係るレトルトカップは、内面及び外面に熱可塑性樹脂層が設けられた紙を主体とする基材シートから構成されている。
図1は、本実施形態に係るレトルトカップの製造工程の一例を示す概略図である。
ここで、この切欠き部31,32の形状を異なる形状とすることにより、少なくとも3重の構成のフランジ部16の上面を平坦にしても、フランジ部16上面の前記貼り合せ部15の位置に生じる段差を解消することができる。
図3Aに示すように、胴部形成用ブランク10により作製された筒状の胴部材18の下部内面に、底部材20の周縁部21を差込む。この底部材20の周縁部21は、底部形成用ブランクの周縁部を下方に折り曲げて形成されている。次に、胴部材18の下端部23を内側に折り返し、さらに上部を内側に折り返す。このようにして、上部折り返し部24および下部折り返し部25を形成する。これにより、本実施形態に係るレトルトカップの底部は、胴部材の下端部23が上部折り返し部24と底部材20の下方折り曲げ部との間に位置した状態となる。すなわち、底部材20の周縁部21が下部折り返し部25に差し込まれた状態となる。
これにより、胴部材18の下端部23は、底部材20の周縁部21の内面と胴部材18の上部折り返し部24近辺の胴部材とにより封止された状態となる。この結果、この部分からの水分等の浸入が阻止される。
また、周縁部21の端部21aは、上部折り返し部24および下部折り返し部25のそれぞれから離間していてもよい。
そして、前記端縁延設片4a,4cを紙基材1の端縁から外方に延出して熱圧着する構成とすることによって、胴部貼り合わせ部の段差が前記端縁延設片4a,4cで埋まる。これにより、段差のない構成とすることができるうえ、紙基材1が紙容器の内部及び外部に露出しない構成とすることができる。
また、樹脂部4dが樹脂部4cを紙基材1の内面側に折り返した構成とすることで、胴部貼り合わせ部15における樹脂量が確保でき、貼り合わせ部外面の密封性が良好となる。この樹脂部4aの端部と樹脂部4cの端部との間は、図6A~図6Cにおいて樹脂部端部空隙42として示してあるが、これら端部が重なっていてもよい。
もしくは、樹脂部4dが樹脂部4cを紙基材1の外面側に折り返した構成とすることができる。
不必要な部分が切り取られた積層シートから印刷された複数個の扇形状の胴部材ブランク10を打ち抜き、それぞれ接合部の全長にわたる端縁延設片4a,4cを形成した一枚ずつの胴部材ブランク10を作製する。
このような各工程を経て、紙基材1から所定幅外方に延出した端縁延設片4a,4cを両方の側端縁に形成した胴部材ブランク10を作製することができる(図8A,図8B参照)。
胴部材ブランク10の端面に端縁延設片4aを設けた内側基材端縁11を内側にして、これともう一方の端縁延設片4cを設けた外側基材端縁12とが所定幅重なるように、これらを重ね合わせて接合する。これにより、胴部貼り合わせ部15を有する円筒形状の胴部材(胴部)18が形成される。
これにより、胴部材18の下部端縁からの水分の浸透を効果的に防止できるレトルトカップの底部構造が得られる。
フランジ部16は、上述のように上部周縁を外方に1周以上巻き込んだ構成のみに限られない。このフランジ部16は、その上下から加圧圧着することにより、その上面が平坦であってもよい。
または、成形されたレトルトカップの胴部の表面に、印刷、金属蒸着により装飾層を施したプラスチックフィルムを被覆することができる。
本発明の第2の実施形態に係るカップ状紙容器を、図面に基づいて以下に説明する。
本実施形態に係る紙容器は、例えば、内面及び外面に熱可塑性樹脂層が設けられた紙を基材とする積層シートから構成されている。
図10に示すように、胴部材218は、胴部貼り合わせ部215を有する円筒形状に形成されている。この胴部貼り合わせ部215は、胴部材ブランク210の一方の端縁211をもう一方の端縁212に重ね合わせて形成される。この胴部材ブランク210には、両側端縁上部にそれぞれ切欠き部231,232が設けられている。また、底部材220は、円形状であり、下向きに起立させた周縁部221を有する。そして、前記胴部材218の下部内面に、底部材220の周縁部221の外面が接合される。
もしくは、樹脂部204dは、樹脂部204cを紙基材201の外面側に折り返した構成とすることができる。
図16は、本実施形態に係る樹脂部を紙基材の外面側に折り曲げ仮接着させる仮接着機構の一例を示す斜視図である。
図17A~図17Dは、本実施形態に係る樹脂部を紙基材の外面側に折り曲げ仮接着させる工程を示す部分断面図である。
貼り合わせ部215の外側となる紙基材201の場合も、必要であれば同様にして折返し樹脂部204dを形成することができる。
また、折返し部を必要としない場合に、この装置を用いて、単なる圧着による紙基材端面の封止を行うことができる。
または、成形された紙容器の胴部の表面に、印刷、金属蒸着により装飾層を施したプラスチックフィルムを被覆することができる。
本発明の第3の実施形態に係るレトルトカップを、図面に基づいて以下に説明する。
本実施形態に係るレトルトカップは、例えば、少なくとも内側面に熱可塑性樹脂層440が設けられた紙層401を基材とする積層シート403から構成されている。
本実施形態に係るレトルトカップは、胴部材418と、底部材420と、からなる。この胴部材418は、胴部材ブランク410の一方の端縁411をもう一方の端縁412に重ね合わせた胴部貼り合わせ部415を有する略円筒形状に形成されている。この胴部材ブランク410は、側端縁上部に切欠き部431が設けられている。この底部材420は、円形状であって、下向きに起立させた周縁部421を有する。
そして、前記胴部材418の下部内面に、底部材420の周縁部421の外面を接合させる。
一方、胴部材の上部周縁を外方に1周以上巻き込み、フランジ部416が形成される。このようにしてレトルトカップが形成される。
さらに、前述のように、延設樹脂部404aが紙層の端縁から外方に延出した構成の場合、胴部材両端縁の保護ができる。
図27Aは、図22Aに示したブランクと同様に、上方の隅部の紙層の切り欠き部431が矩形であり、延設樹脂部404が前記の矩形の切り欠き部のみに形成されている場合を示している。
図27Cは、ブランク上方の隅部の紙層の切り欠き部431が三角形であり、胴部材両側端縁411,412からの延設樹脂部404がない場合を示している。
さらに、外部からの水分等に対するバリア性を強化するために、図25A~図25Cに示すように、折り返し樹脂部404dを有することが好ましい。この折り返し樹脂部404dは、延出した延設樹脂部(端縁延設部)404cを紙層の内面側に折り返して形成される。
このように、熱可塑性樹脂層440,441がバリア層を含む構成により、紙層401の端面がバリア層により保護される。この結果、バリア性により優れたカップ状紙容器を形成することができる。
また、紙層401の外側面にポリエチレン等の熱可塑性樹脂層441を設け、紙層の両面に熱可塑性樹脂層440,441を設けた構成とすることもできる。
長窓は、上部に切り欠き部431と端縁411の外方の矩形部分とを含む形状である。(図20A,図20B参照)(第1打ち抜き工程)。
このとき、紙層の切り欠き部431の領域の延設樹脂部は、この樹脂部を重ねた状態で折り返される。それ以外の延設樹脂部は、紙層の端面から内側に折り返される。
紙基材(坪量260g/m2)からなるシートに長窓を形成した。
次に、前記シートの紙基材の表面に、低密度ポリエチレン層(30μm)を設けた。紙基材の裏面に、低密度ポリエチレン層(30μm)/アルミニウム箔(9μm)/ポリエチレンテレフタレートフィルム(12μm)/低密度ポリエチレン層(70μm)を設けた。その後、前記長窓の位置で前記低密度ポリエチレン層の内面を接合して一体化した。
前記端縁延設片樹脂部を有する前記ブランクの側端縁を重ね合わせの長さLが5mmになるように重ねて接合することにより一体化した。これにより、胴部貼り合わせ部が設けられた胴部を形成した。
そして、カップ成形機を用い、前記胴部材18の下部内面に、底部材20の周縁部21の外面を接合させた。さらに、周縁部21を覆うように前記胴部材18をカールさせながら内方に折り曲げ、下端縁部が胴部材18の上部折り返し部24と底部形成用ブランクの周縁部の下方折り曲げ部21との間に位置した状態とした。この状態で、底部材20の周縁部21内面に接合させて、直径が52mmの環状脚部22を形成した。
(実施例2)
この結果、前記レトルトカップは、フランジ部16の上面を平坦にしたにもかかわらず、フランジ部16の上面の胴部貼り合わせ部15に位置する部分に段差がなく成形された。また、胴部および底部の貼り合わせ部の強度と耐水性も十分であり、水に漬けて冷却しても紙基材の膨潤等の異常は見られなかった。
(実施例3)
前記ブランクの端縁延設片を有する側端縁を5mm重ね合わせて端縁延設片を基材表面に圧着して接合して一体化し、胴部貼り合わせ部15を設けて胴部を形成した。
そして、カップ成形機を用い、前記胴部材18の下部内面に、底部材20の周縁部21の外面を接合させた。さらに、周縁部21を覆うように前記胴部材18をカールさせながら内方に折り曲げ、下端縁部が胴部材18の上部折り返し部24と底部形成用ブランクの周縁部の下方折り曲げ部21との間に位置した状態とした。この状態で、底部材20の周縁部21内面に接合させて、直径が52mmの環状脚部22を形成した。
(実施例4)
次に、前記紙基材の裏面に低密度ポリエチレン(30μm)/アルミニウム箔(9μm)/ポリエチレンテレフタレートフィルム(12μm)/低密度ポリエチレン層(15μm)を設け、シート紙基材表面の長窓部分を覆うように設けた。
前記ブランクの端縁延設片を有する側端縁を5mm重ね合わせて端縁延設片を基材表面に圧着して接合一体化し、胴部貼り合わせ部を設けて胴部を形成した。
次に、前記胴部の下部内面に、底部材20の周縁部21の外面を接合させた。この底部材20は、円形状であり、下向きに起立させた周縁部21を有する。
表側から、紙基材(坪量260g/m2)からなるシートに長窓を形成した。
(実施例6)
実施例5のフランジ部216を、超音波シール装置を用いて上下から加圧圧着し、フランジ部216の上面を平坦にした。
(実施例7)
表側から、紙基材(坪量260g/m2)低密度ポリエチレン(30μm)/アルミニウム箔(9μm)/ポリエチレンテレフタレートフィルム(12μm)からなるシートに長窓を形成した。
(実施例8)
実施例7のフランジ部216を、超音波シール装置を用いて上下から加圧圧着し、フランジ部216の上面を平坦にした。
(実施例9)
表側から、低密度ポリエチレン層(30μm)/紙基材(坪量260g/m2)からなるシートに長窓を形成した。
(実施例10)
実施例9のフランジ部215を、超音波シール装置を用いて上下から加圧圧着し、フランジ部216の上面を平坦にした。
2 基材シート
40 熱可塑性樹脂層
41 熱可塑性樹脂層
42 樹脂部端部空隙
4 樹脂部
4a 端縁延設部(外延樹脂部)
4b 端縁延設部(折り返し樹脂部)
4c 端縁延設部(外延樹脂部)
4d 端縁延設部(折り返し樹脂部)
10 胴部材ブランク(胴部形成用ブランク)
11 樹脂部を有する側端縁(端縁)
12 樹脂部を有する側端縁(端縁)
13 長窓
14 長窓
15 胴部貼り合わせ部
16 フランジ部
18 胴部材(胴部)
20 底部材(底部)
21 周縁部
21a 周縁部の端部
22 環状脚部
23 胴部材の下端部
24 上部折り返し部
25 下部折り返し部
31 切欠き部
32 切欠き部
201 紙基材
202a バリア層
203 積層シート
240 熱可塑性樹脂層
241 熱可塑性樹脂層
242 樹脂部端部空隙
204 樹脂部
204a 外延樹脂部
204b 折り返し樹脂部
204c 外延樹脂部
204d 折り返し樹脂部
210 胴部材ブランク
211 樹脂部を有する側端縁
212 樹脂部を有する側端縁
213 長窓
214 長窓
215 貼り合わせ部
216 フランジ部
218 胴部材
220 底部材
221 周縁部
222 環状脚部
231 切欠き部
232 切欠き部
D201 第1部材
D211 押さえ突起
D212 間隙
D202 第2部材
D221 押さえ突起
D203 第3部材
D231 押さえ突起
401 紙層
403 積層シート
404 延設樹脂層
404a 延設樹脂層
404b 折り返し樹脂層
404c 延設樹脂層
404d 折り返し樹脂層
410 胴部材ブランク
411 側端縁
412 側端縁
413 長窓
415 貼り合せ部
416 フランジ部
418 胴部材
420 底部材
421 周縁部
422 環状脚部
431 紙層の切り欠き部
440 内面側熱可塑性樹脂層
441 外面側熱可塑性樹脂層
Claims (14)
- 紙層とこの紙層の両面に設けられた熱可塑性樹脂層とを有する胴部形成用ブランクから形成された筒状の胴部と;
この胴部の一方の開口をシールする底部と;
を備えたレトルトカップであって、
前記底部は、下方に折り曲げられた周縁部を有し、
前記胴部は、前記胴部形成用ブランクの両端縁同士が重ね合わせられてシールされた胴部貼り合わせ部と、前記胴部形成用ブランクを内側に折り返すことにより前記胴部の下端部に形成された下部折り返し部と、前記折り返された胴部形成用ブランクの端部を内側に折り返すことにより形成された上部折り返し部と、を有し、
前記底部の周縁部が前記下部折り返し部に差し込まれた状態で、前記胴部の下端部と前記上部折り返し部と前記底部の周縁部とが密着シールされている
ことを特徴とするレトルトカップ。 - 前記胴部の両端縁には、前記熱可塑性樹脂層が所定幅に亘って延設された端縁延設部が設けられている
ことを特徴とする請求項1に記載のレトルトカップ。 - 前記胴部貼り合わせ部で前記胴部の内側に位置する前記端縁延設部が、前記胴部の外側に折り返されて前記端縁同士の間に位置する
ことを特徴とする請求項2に記載のレトルトカップ。 - 前記胴部貼り合わせ部で前記胴部の外側に位置する前記端縁延設部が、前記胴部の内側に折り返されて前記端縁同士の間に位置する
ことを特徴とする請求項2に記載のレトルトカップ。 - 前記端縁延設部が、前記端縁の全長に亘って設けられている
ことを特徴とする請求項2から請求項4のいずれか一項に記載のレトルトカップ。 - 前記重ね合わせ部の外側に位置する前記端縁延設部が、前記重ね合わせ部の内側に位置する前記胴部形成用ブランクに密着している
ことを特徴とする請求項2から請求項4のいずれか一項に記載のレトルトカップ。 - 前記熱可塑性樹脂層が、ガスバリア性を有する層を備える
ことを特徴とする請求項1から請求項6のいずれか一項に記載のレトルトカップ。 - 前記胴部が、上面が平坦であるフランジ部を形成する
ことを特徴とする請求項1から請求項7のいずれか一項に記載のレトルトカップ。 - 前記胴部形成用ブランクが、前記フランジ部が形成される側の隅部の前記紙層が切り欠かれた切り欠き部を有する
ことを特徴とする請求項1から請求項8のいずれか一項に記載のレトルトカップ。 - 前記胴部形成用ブランクの前記紙層の、前記底部によりシールされる側の隅部が切り欠かれている
ことを特徴とする請求項1から請求項9のいずれか一項に記載のレトルトカップ。 - 前記胴部が、前記切り欠き部から延設された熱可塑性樹脂層を有する
ことを特徴とする請求項1から請求項10のいずれか一項に記載のレトルトカップ。 - 前記周縁部の端部が、前記上部折り返し部及び前記下部折り返し部のそれぞれから離間している
ことを特徴とする請求項1から請求項11のいずれか一項に記載のレトルトカップ。 - 紙を基材とする積層シートを所定の形状に打ち抜きブランクを形成する打ち抜き工程と;
前記ブランクの端縁の外方にそれぞれ延出する樹脂部を形成する樹脂部形成工程と;
前記樹脂部を折り返す樹脂部折り返し工程と;
前記端縁同士を重ね合わせて密着し胴部貼り合わせ部を形成する胴部形成工程と;
を備えることを特徴とするレトルトカップの製造方法。 - 前記樹脂部折り返し工程では、前記樹脂部のうちの一方を折り返し、
前記胴部形成工程では、折り返された前記樹脂部が他方の樹脂部の内側になるように、前記端縁同士を重ね合わせて密着し胴部貼り合わせ部を形成する
ことを特徴とする請求項13に記載のレトルトカップの製造方法。
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Cited By (8)
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US9180995B2 (en) | 2009-06-23 | 2015-11-10 | Toppan Printing Co., Ltd. | Retort cup |
JP2011037503A (ja) * | 2009-08-18 | 2011-02-24 | Toppan Printing Co Ltd | 紙カップ |
JP2013043684A (ja) * | 2011-08-25 | 2013-03-04 | Daiwa Can Co Ltd | 紙容器 |
CN102501403A (zh) * | 2011-11-08 | 2012-06-20 | 上海金叶包装材料有限公司 | 一种用超声波焊接食品用纸质包装容器的制作方法 |
JP2013237480A (ja) * | 2012-05-17 | 2013-11-28 | Toppan Printing Co Ltd | カップ型紙容器 |
JP2013256312A (ja) * | 2012-06-12 | 2013-12-26 | Toppan Printing Co Ltd | 積層体およびこれを用いた紙容器 |
JP2014005000A (ja) * | 2012-06-21 | 2014-01-16 | Toppan Printing Co Ltd | カップ型紙容器 |
JP2014037265A (ja) * | 2012-08-20 | 2014-02-27 | Toppan Printing Co Ltd | カップ型紙容器 |
Also Published As
Publication number | Publication date |
---|---|
HK1168078A1 (en) | 2012-12-21 |
TWI518014B (zh) | 2016-01-21 |
EP2447175A1 (en) | 2012-05-02 |
EP2447175A4 (en) | 2014-02-19 |
JP6023426B2 (ja) | 2016-11-09 |
CN102459010A (zh) | 2012-05-16 |
RU2011152191A (ru) | 2013-07-27 |
AU2010263914A1 (en) | 2012-01-19 |
EP2447175B1 (en) | 2016-06-08 |
US9180995B2 (en) | 2015-11-10 |
RU2549053C2 (ru) | 2015-04-20 |
CN102459010B (zh) | 2014-06-18 |
AU2010263914B2 (en) | 2015-12-10 |
CA2765489C (en) | 2017-11-28 |
TW201103839A (en) | 2011-02-01 |
US20120125926A1 (en) | 2012-05-24 |
JP2015078018A (ja) | 2015-04-23 |
KR101735854B1 (ko) | 2017-05-15 |
JP6011648B2 (ja) | 2016-10-19 |
CA2765489A1 (en) | 2010-12-29 |
JPWO2010150500A1 (ja) | 2012-12-06 |
KR20120032485A (ko) | 2012-04-05 |
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