WO2004089779A1 - 容器、包装体及び容器の製造方法 - Google Patents
容器、包装体及び容器の製造方法 Download PDFInfo
- Publication number
- WO2004089779A1 WO2004089779A1 PCT/JP2004/005035 JP2004005035W WO2004089779A1 WO 2004089779 A1 WO2004089779 A1 WO 2004089779A1 JP 2004005035 W JP2004005035 W JP 2004005035W WO 2004089779 A1 WO2004089779 A1 WO 2004089779A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- layer
- flange portion
- opening
- multilayer sheet
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 238000004806 packaging method and process Methods 0.000 title description 3
- 229920005989 resin Polymers 0.000 claims abstract description 69
- 239000011347 resin Substances 0.000 claims abstract description 69
- 239000000463 material Substances 0.000 claims abstract description 39
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 238000004080 punching Methods 0.000 claims description 62
- 238000000034 method Methods 0.000 claims description 14
- 230000032798 delamination Effects 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 234
- 238000007789 sealing Methods 0.000 description 48
- -1 polypropylene Polymers 0.000 description 18
- 239000004743 Polypropylene Substances 0.000 description 13
- 239000002994 raw material Substances 0.000 description 13
- 229920001155 polypropylene Polymers 0.000 description 12
- 229920001971 elastomer Polymers 0.000 description 10
- 239000000806 elastomer Substances 0.000 description 9
- 239000004840 adhesive resin Substances 0.000 description 8
- 229920006223 adhesive resin Polymers 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 7
- 229920005672 polyolefin resin Polymers 0.000 description 7
- 239000000565 sealant Substances 0.000 description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 235000013305 food Nutrition 0.000 description 5
- 239000011342 resin composition Substances 0.000 description 5
- 238000010828 elution Methods 0.000 description 4
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 4
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 4
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 4
- 229920005680 ethylene-methyl methacrylate copolymer Polymers 0.000 description 4
- 229920005678 polyethylene based resin Polymers 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920005673 polypropylene based resin Polymers 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- OIPMQULDKWSNGX-UHFFFAOYSA-N bis[[ethoxy(oxo)phosphaniumyl]oxy]alumanyloxy-ethoxy-oxophosphanium Chemical compound [Al+3].CCO[P+]([O-])=O.CCO[P+]([O-])=O.CCO[P+]([O-])=O OIPMQULDKWSNGX-UHFFFAOYSA-N 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920000554 ionomer Polymers 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 229920006124 polyolefin elastomer Polymers 0.000 description 2
- 229920005629 polypropylene homopolymer Polymers 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 235000011962 puddings Nutrition 0.000 description 2
- 229920005604 random copolymer Polymers 0.000 description 2
- 239000011115 styrene butadiene Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 229920004889 linear high-density polyethylene Polymers 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- REOJLIXKJWXUGB-UHFFFAOYSA-N mofebutazone Chemical group O=C1C(CCCC)C(=O)NN1C1=CC=CC=C1 REOJLIXKJWXUGB-UHFFFAOYSA-N 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
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
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/10—Container closures formed after filling
- B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
- B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
- B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
- B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
- B65D77/2044—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/10—Container closures formed after filling
- B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
-
- 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
- B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
- B65D2577/10—Container closures formed after filling
- B65D2577/20—Container closures formed after filling by applying separate lids or covers
- B65D2577/2025—Multi-layered container, e.g. laminated, coated
-
- 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
- B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
- B65D2577/10—Container closures formed after filling
- B65D2577/20—Container closures formed after filling by applying separate lids or covers
- B65D2577/2041—Pull tabs
- B65D2577/205—Pull tabs integral with the closure
-
- 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
- B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
- B65D2577/10—Container closures formed after filling
- B65D2577/20—Container closures formed after filling by applying separate lids or covers
- B65D2577/2075—Lines of weakness or apertures
- B65D2577/2083—Lines of weakness or apertures in container flange
Definitions
- the present invention relates to a container formed by molding a multilayer sheet and having both sealing properties and easy-opening properties, a package provided with the container, and a method for producing the container.
- a package having a container and a lid material is generally used.
- the container used for this package is a thermoformed sheet. After filling with foods, the lid is heat-sealed (welded) to the flange that protrudes outward from the periphery of the opening of the container. .
- a container 100 is formed from a multilayer sheet, and the innermost layer 100 A of the flange portion 101 and the lid member 7 are heat-seen.
- the lid 7 is peeled off, delamination occurs between the innermost layer 100 OA and the next layer 100 B adjacent to the innermost layer 10 OA, and the innermost layer 1 OOA is peeled off together with the lid 7.
- Japanese Patent Publication No. 5-67509, pp. 1-4, figs. 1 and 2 See, for example, Japanese Patent Publication No. 5-67509, pp. 1-4, figs. 1 and 2).
- the innermost layer was heat-sealed at high temperature and high pressure in order to increase the heat-sealing strength between the innermost layer and the lid material.
- the sealing resin is eluted to the end face side of the flange portion 101 and formed on the next layer 100 B It may cover the edge of the releasable surface H, which may make it difficult to peel the innermost layer 10 OA by delamination. Therefore, if the heat sealing conditions are not controlled within a narrow range, there is a problem that sufficient sealing performance and easy-opening performance cannot be ensured. Disclosure of the invention
- a main object of the present invention is to provide a container, a package, and a method of manufacturing a container that can maintain easy-opening property even when the lid material is heat-sealed at high temperature and high pressure to enhance the sealing property.
- the container of the present invention is a container having a flange formed by molding a multilayer sheet having a peelable surface in an inner layer and extending outward from a peripheral edge of an opening for storing an article to be packaged. At the outer end face of the part, the end of the innermost layer located inside the container including the upper surface of the flange part extends beyond the edge of the peelable surface formed on the flange part to the container bottom side Is a special floor.
- the peelable surface may be formed by delamination between the innermost layer and the next layer adjacent to the innermost layer. It may be formed. Further, it may be formed by breaking in the innermost layer.
- peelable surface refers to a surface along the direction in which the flange portion extends.For example, if the innermost layer causes delamination between the next layer and the innermost layer, it extends toward the container bottom. It does not include the surface formed by peeling off the end of the innermost layer from the next layer.
- the peeling strength of the delamination is preferably about 3 to 15 N15 mm.
- the innermost layer is a layer containing a polyethylene resin.
- the next layer may be a layer containing a resin composition containing polypropylene-based resin and polyethylene-based resin in a ratio of 50:50 to 97: 3.
- the next layer and the innermost layer cause cohesive rupture in the layer. If the next layer and the innermost layer are firmly adhered to another strong film and subjected to a peeling test, breakage occurs in the layer and the peel strength Is preferably a layer having a thickness of 25 NZ 15 mm or less (JISK 6854).
- the next layer and the innermost layer are made of a polyolefin resin
- the elastic modulus is 20 OMPa or less, especially 15 OMPa or less It can be a layer containing an elastomer, a soft resin or an incompatible resin.
- Soft resin and elastomer preferably contains 3 to 5 0 wt 0/0 to polyolefin-based resin composition.
- the polyolefin resin composition is not particularly limited, and is a polypropylene resin such as homopolypropylene, random polypropylene, block polypropylene, etc., high-density polyethylene, high-pressure low-density polyethylene, linear low-density polyethylene, etc.
- Polyethylene-based resins can be exemplified.
- the soft resin examples include an ethylene unipolar vinyl compound copolymer.
- E AA ethylene-acrylic acid copolymer
- EMA ethylene-methyl acrylate copolymer
- EMMA ethylene-methacrylic acid copolymer
- EAA ethylene-ethyl acrylate copolymer
- EAA ethylene-ethyl acrylate-maleic anhydride copolymer
- E A-MAH known ethylene-acrylic acid copolymers such as ionomer resins, ethylene Examples thereof include vinyl monoacetate copolymer and styrene-grafted polypropylene.
- the elastomer examples include an olefin-based elastomer (a copolymer of amorphous ethylene and an ⁇ -olefin such as propylene and butene having a density of 900 kgZm 3 or less), a styrene-based elastomer (styrene-based elastomer). Butadiene block copolymers, styrene-butadiene random copolymers, etc.), and hydrogenated products thereof.
- olefin-based elastomer a copolymer of amorphous ethylene and an ⁇ -olefin such as propylene and butene having a density of 900 kgZm 3 or less
- styrene-based elastomer styrene-based elastomer
- Butadiene block copolymers, styrene-butadiene random copolymers, etc. and hydrogenated products thereof.
- the edge of the peelable surface is not exposed at the outer end surface of the flange portion. Therefore, even when the sealing resin is eluted to the flange end surface when the lid material is heat-sealed to the flange portion, the sealing resin does not adhere to the edge of the peelable surface, and the sealing resin is eluted. A decrease in the opening property can be prevented, and the easy opening property can be maintained. In addition, even if the sealing resin is welded to the end face of the flange portion, the easy-opening property can be maintained, so that heat sealing can be performed at high temperature and high pressure, and high sealing property can be secured.
- the extension of the end of the innermost layer of the flange portion is preferably at least 1.2 times the dimension between the upper surface of the innermost layer and the peelable surface in the flange portion.
- the peelable surface is formed by delamination between the innermost layer and the next layer which is in contact with the innermost layer or a destruction occurring in the next layer, and the innermost layer of the flange portion includes the opening portion. It is preferable to form an annular cut along.
- the lid material Since an annular cut along the opening is formed in the innermost layer, the lid material is welded to this container, and when the lid material is peeled off, the outer peripheral portion is more easily peeled off with the lid material than the innermost layer cut As a result, easy opening can be ensured.
- a package according to the present invention is characterized in that it comprises any one of the containers described above, and a lid member welded to a flange portion of the container.
- the package is provided with any of the above-described containers, even if the lid is heat-sealed at high temperature and high pressure to improve the sealing property, it is possible to maintain the easy-opening effect. it can. ⁇
- the sheath resin for welding the flange portion and the lid material is eluted to at least an outer surface of an end of the innermost layer at least at an opening portion of the lid material.
- the lid and the container are heat-sealed at high temperature and high pressure, and even if the sealing resin elutes to the outer surface of the innermost layer end, the edge of the peelable surface is covered by the innermost layer edge The opening of the package will not be difficult due to the elution of the sealing resin.
- an annular cut is formed in the flange portion of the container, and the lid is welded to the outer peripheral side of the cut not less than 0.2 mm from the cut. ,.
- the lid member includes an opening tab
- the flange portion of the container and the lid member have a first seal portion having a predetermined width formed so as to surround the opening, and the first seal portion.
- the seal resin of the second seal portion is eluted to the outer surface of the end of the innermost layer of the flange portion.
- the width of the first seal portion is preferably about 2 to 20 mm, and particularly preferably about 3 to about 10 mm.
- the width of the second seal portion is preferably about 0.5 to 6 mm, and particularly preferably about 1 to 4 mm.
- the package Since the flange portion and the lid member are welded by the first seal portion formed so as to surround the opening and the second seal portion formed in the region of the first seal portion, the package This ensures a high level of airtightness.
- the sealing resin of the second seal portion elutes to the end surface of the innermost layer of the flange portion, and the second seal portion is formed in the region of the first seal portion. Therefore, the force at the time of opening is transmitted to the area of the first seal portion, and the lid material can be easily opened.
- the method for manufacturing a container according to the present invention comprises: forming a multilayer sheet having an inner layer having a peelable surface; a container main body having an opening for accommodating an article to be packaged; A container having a flange portion on which a peelable surface is formed, wherein after forming the container body on the multilayer sheet, an innermost layer disposed inside the container body comprises: A punching die is arranged on the opposite surface to punch out the outer periphery of a portion corresponding to the flange portion of the multilayer sheet.
- the punching die may be made to approach, and the punching die may be punched out. May be punched out.
- the support of the innermost layer side of the multilayer sheet or the like allows the multilayer sheet The outside of the part corresponding to the flange is supported, and a punching die is arranged on the outermost layer side of the part corresponding to the flange. Then, the multilayer sheet is sandwiched between a punching die and a support base or the like, and the outer periphery of the flange portion is cut.
- the punching die is arranged on the surface opposite to the innermost layer of the container body, and the outer periphery of the flange portion is punched, so that the end of the innermost layer is flanged on the outer end surface of the flange portion. It extends to the container bottom side beyond the edge of the peelable surface formed in the part. Since the edge of the peelable surface formed on the flange portion is covered by the edge of the innermost layer, even if the sealing resin elutes when the lid material is welded to the flange portion of the container, The sealing resin does not adhere to the edge of the peelable surface.
- the opening of the lid is not hindered by the elution of the sealing resin, and the lid material and the container can be heat-sealed at high temperature and high pressure. Can be manufactured. At this time, it is preferable that the outside of a portion corresponding to the flange portion of the multilayer sheet is supported to operate the punching die.
- the multilayer sheet does not sag, so that the container can be accurately punched.
- the multilayer sheet when supporting the outside of a portion corresponding to the flange portion of the multilayer sheet, it is preferable that the multilayer sheet is biased and supported from a direction opposite to the innermost layer.
- the opening of the container body formed on the multilayer sheet is directed downward, and the punching die is lowered to perform punching.
- the container having a high punching force falls by its own weight by punching by lowering the punching die with the opening portion facing downward.
- the continuous punching process can be performed, thereby improving production efficiency.
- FIG. 1 is a perspective view showing a container according to an embodiment of the present invention.
- FIG. 2 is a sectional view of the container of FIG.
- FIG. 3 is an enlarged view showing a main part of the container.
- FIG. 4 is a perspective view showing a package of the present invention.
- FIG. 5 is a sectional view showing a main part of the package.
- FIG. 6 is a plan view of the ffjff self-packaged body viewed from the top side of the lid material.
- FIG. 7 is a diagram showing the opened state of the package.
- FIG. 8 is a schematic view showing a punching device used in the embodiment.
- FIG. 9 is a cross-sectional view showing a conventional example. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 shows a perspective view of a container 6 according to an embodiment of the present invention.
- FIG. 2 shows a sectional view of the container 6.
- the container 6 stores various foods such as jelly and pudding, etc., and has a circular bottom portion 61, a cylindrical side portion 62 that is raised from the bottom portion 61 and integrally formed, and
- the container body 65 has an opening 63 opposed to the bottom surface 61, and a flange portion 64 integrally formed with the container body 65.
- the container 6 is obtained by thermoforming a multi-layer sheet 2 having a seven-layer structure (see FIG. 8, the layer configuration is omitted in FIG. 8).
- the first layer 6 OA which is the innermost layer, is to be heat-sealed with the lid member 7 described later, it is sufficient that the first layer 6 OA contains a heat-sealable thermoplastic resin, such as a polyolefin resin. Can be adopted. In the present embodiment, it is assumed that a polyethylene-based resin is contained.
- the second layer 6 OB is a next layer adjacent to the innermost layer, and delamination occurs between the first layer 6 OA and the second layer 60 B when the lid 7 described below is peeled off.
- the second layer 6 0 B is arbitrary as long as it is a resin such as delamination between the first layer, for example, a polypropylene resin and polyethylene resin 5 0: 5 0-9 A composition containing a resin composition in a ratio of 7 : 3 can be adopted.
- the third layer 60 C is, for example, a layer containing a polypropylene-based resin, and serves as a base material layer.
- the fourth layer 60D is an adhesive layer for adhering the third layer 60C and the fifth layer 6OE, and contains an adhesive resin.
- the fifth layer 60E is a gas barrier layer, and contains, for example, an ethylene-vinyl alcohol copolymer.
- the sixth layer 6 OF is a layer for bonding the fifth layer 60E and the seventh layer 60G, and contains an adhesive resin like the fourth layer 60D.
- the seventh layer 60G is the outermost layer of the container 6, and contains, for example, a polypropylene resin.
- the flange portion 64 is provided so as to extend from the periphery of the opening 63 to the outside. As shown in FIG. 3, the first layer 6OA is surrounded by the first layer 6OA so as to surround the opening 63. A substantially V-shaped notch 64 A is formed.
- the end portion 61A of the first layer 60A extends to the bottom portion 61 side.
- the leading end of A in the extending direction reaches the third layer 60C beyond the edge H1 of the peelable surface H formed between the first layer 60A and the second layer 60B.
- the extension L 1 of the end portion 61 A is equal to the distance L 2 between the upper surface of the first layer 6 OA and the peelable surface H formed on the upper surface of the second layer 60 B. More than twice.
- FIGS. 4 to 7 one package 1 using such a container 6 will be described. /, I will explain.
- the package 1 includes a container 6 and a lid 7 that is welded to the flange portion 64 of the container 6 and covers the opening 63.
- the cover 7 is formed by molding a sheet into a substantially circular shape, and includes a substantially semicircular opening tab 75 protruding outward from the cover 7. As shown in FIG. 5, such a lid member 7 is provided with a sealant layer 7 OA heat-sealed to the flange portion 64, a sealant layer 7 OA, and an adhesive resin layer 70 B on the sealant layer 7 OA. And a base layer 70 C adhered through the base material.
- the sealant layer 70A may be a resin layer that can be heat-sealed with the flange portion 64, and is, for example, a layer containing a linear high-density polyethylene resin.
- the base layer 70C contains, for example, a polyethylene terephthalate resin.
- the heat seal portion 641 is formed on the upper surface (first layer 6OA) of the flange portion 64.
- the heat seal portion 641 includes an annular first seal portion 641A having a predetermined width formed so as to surround the opening portion 63, and the first seal portion 641.
- An annular second seal portion 641 B is formed in the region of 41 A so as to surround the opening 63 along the first seal portion 641 A.
- the first seal portion 641A is located on the outer peripheral side of the cut 64A by 0.2 mm or more, preferably about 0.5 to 5 mm (that is, the first seal portion 641A).
- the gap t between the inner peripheral edge of A and the notch 64 A is formed at a position where the distance t is 0.2 mni or more, preferably about 0.5 to 5 mm). It is welded to the outer peripheral side by 0.2 mm or more from the notch 64 A.
- the second seal portion 641 B is formed along the center portion of the first seal portion 641 A in the width direction, and has a width smaller than that of the first seal portion 641 A. Has become.
- the width of the first seal portion 641 A is 2 to 2 O mm, preferably 3 to I 0 mm
- the width of the second seal portion 641 B is 0.5 to 6 mm, Preferably:! ⁇ 4 mm.
- the second seal portion 641 B has an overhanging seal portion 641 C that protrudes outward at a position corresponding to the opening tab 75 of the lid member 7.
- the overhanging sealing portion 641C is formed by the elution of the sealing resin of the second sealing portion 641B.
- the overhang seal portion 641C extends to the back surface of the opening tap 75 and further reaches the end surface of the end portion 61A of the first layer 60A of the container 6.
- the overhanging seal portion 641C is formed only at one place, but is not limited to this, and a plurality of overhanging seal portions may be formed.
- the peel strength between the first layer 60A and the second layer 60B is preferably 15 NZ 15 mm or less, and more preferably 3 to 15 NZ 15 mm. If the peel strength exceeds 15 NZ 15 mm, peeling between the first layer 6OA and the second layer 60B becomes difficult, and it becomes impossible to ensure easy opening.
- the peel strength between the lid material 7 and the heat seal portion 641 of the first layer 6 OA needs to be larger than the peel strength between the first layer 6 OA and the second layer 6 OB, and 2 ON 15 mm or more , Preferably 25 N / 1.5 mm or more. If the peel strength is less than 20 N / 15 mm, easy opening between the first layer 60A and the second layer 60B may not be ensured in some cases.
- the end 601 A of the first layer 60 A is peeled off together with the lid 7.
- the end 601 A has a thinner thickness at the front end side in the extending direction.
- the lid 7 is cut by the force of peeling. That is, the tip of the end 601A is not peeled off from the end face of the third layer 6OC, and remains on the end face of the third layer 60C: ⁇ .
- the procedure for manufacturing the easily-openable package 1 as described above will be described with reference to FIG.
- a method for producing the easily-openable package 1 according to the present invention for example, there is a system (Form Field Seal system) that consistently stores an object to be packaged from sheet molding. Specifically, a sheet forming step of manufacturing the multilayer sheet 2, a container body forming step of forming the container body 65, and the first layer 60A of the multilayer sheet are performed by a punching die 92 described later from the opposite surface. (See FIG.
- the above-described multilayer sheet 2 having a seven-layer structure is manufactured by co-extrusion with a T-die or the like (sheet forming step).
- sheet forming step the container body 65 is formed in the multilayer sheet 2 by pre-stretching with a plug into the cavity formed in the outer shape of the container body 65, and thereafter, by plug-assist molding using air pressure or vacuum molding.
- a sheet positioning portion 23 for positioning is formed outside the portion corresponding to 64. The sheet positioning portion 23 protrudes toward a portion corresponding to the bottom portion 61 of the container body 65 (container body forming step).
- a notch 64 A formed for opening is formed. Specifically, a notch 64 A is formed by pressing a stamping die (not shown) having an annular blade against the upper surface of a portion corresponding to the flange portion 64.
- the annular blade include a metal blade and a heating blade having a heating ability.
- the punching device 9 includes a sheet sandwiching portion 91 that sandwiches the outside of a portion corresponding to the flange portion 64 of the multilayer sheet 2 from both sides of the multilayer sheet 2 (the container body 65 has been formed).
- a punching die 92 for punching the outside of the flange portion 64 from the opposite side of the first layer 60 A of the multilayer sheet 2 sandwiched between the sheet sandwiching portions 91 is provided.
- the sheet sandwiching portion 91 is fixed to an installation table or the like, and supports the portion corresponding to the outside of the flange portion 64 of the multilayer sheet 2 from below. And a punching guide 912 for sandwiching a portion corresponding to the outside of the flange portion 64 of the multilayer sheet 2 together with the sheet support 911.
- the seat support 911 is a ring-shaped member made of metal and having a substantially circular cross section, the inner surface of which corresponds to the outer peripheral surface of the punching die 92.
- the punching die guide 9 12 is vertically spaced and approachable with respect to the sheet support 911, and is a metal-made guide body 9 1 2 1 which is a ring-shaped member having a substantially circular section in cross section.
- the guide body 912 includes an urging portion 9122 provided along the outer peripheral edge of the sheet support 911 side.
- the guide body 911 has an inner surface corresponding to the outer peripheral surface of the punching die 92.
- the urging portion 9 1 2 2 is made of an urging member such as rubber.
- the sheet support 911 and the punching die guide 912 have substantially the same inner and outer diameters.
- the punching die 92 is a metal container-like member, and punches out the portion corresponding to the flange portion 64 of the multilayer sheet 2.
- the punching die 92 includes a circular bottom portion 9 21 and a cylindrical side portion 9 22 formed integrally with the bottom portion 9 21. On the surface facing 21, a circular opening 9 23 is formed.
- the punching die 92 is disposed inside the sheet sandwiching portion 91, and the external dimensions of the punching die 92 are substantially the same as the external dimensions of the flange portion 64 of the container 6. Further, the inner diameter of the punching die 92 is larger than the diameter of the opening 63 of the container 6 and smaller than the outer dimensions of the flange 64.
- the end surface 922A of the side surface portion 922 on the side of the opening 923 is inclined downward from the inner edge of the opening toward the outer edge. Therefore, when punching the multilayer sheet 2, the multilayer sheet 2 is sandwiched between the outer edge of the end face 922 A of the side surface section 9222 and the inner peripheral edge of the upper surface of the sheet support 911. In rare cases, the outer peripheral side of the flange portion 64 is cut off.
- a punching step is performed as follows. First, as shown in FIG. 8, the sheet positioning portion 23 of the multilayer sheet 2 is brought into contact with the outer edge of the sheet support base 9 11 to position the installation position of the multilayer sheet 2. With its opening 63 facing downwards.
- the punching guide 912 is approached from above the multilayer sheet 2 placed on the sheet support base 911, and the urging section 9122 is moved to the seventh layer 60G of the multilayer sheet 2. Side (the side opposite to the first layer 60 A), and the multilayer sheet 2 is urged. Then, the sheet support 911 and the punching die guide 912 from both sides of the multilayer sheet 2 (the 7th layer 60G and the 1st layer 60A side) to the flange section of the multilayer sheet 2. The corresponding part is sandwiched and supported.
- the punching die 92 is lowered from the punching die guide 91 2 side, that is, from above the supported multilayer sheet 2 (the seventh layer 60G side), and the flange portion 6 4 of the multilayer sheet 2 is lowered.
- the outer peripheral side of the portion corresponding to is punched out, thereby obtaining the container 6 (punching step).
- the contents such as food are stored from the opening 63 of the molded container 6 using a known filling device, storage device, or the like (storage process).
- a resin sheet is cut in advance according to the shape and size of the flange portion 64 of the container 6.
- the lid material 7 cut and formed is heat-sealed to the flange portion 64 of the container 6.
- the heat sealing device used for heat sealing between the lid member 7 and the container 6 is a general-purpose device, and includes a seal bucket for receiving the container 6, a lid feeding device for feeding the sheet-shaped lid member 7, and a vertical And a heat sealing ring for sealing the lid 7 and the flange portion 64 of the container 6 (not shown).
- the heat seal ring includes a first heat seal ring for forming a first seal portion 641, which is formed to surround the opening 63 of the container 6, and a second heat seal ring. And a second heat see-no-ring formed to form the second heat sink portion 641B.
- the lid member 7 and the flange portion 64 are heat-sealed with the first heat seal ring having a diameter of ⁇ ⁇ , and then heat-sealed with the second heat seal ring.
- the heat sealing is preferably performed at a temperature of 160 to 220 ° C.
- the heat sealing time is about 1.5 seconds (heat sealing step).
- the easily-openable package 1 is manufactured.
- the end portion 60 1 A of the first layer 60 A extends to the container bottom portion 61 side beyond the edge H 1 of the peelable surface H, and the edge H 1 of the peelable surface H Is not exposed on the outer end face of the flange portion 64. Therefore, when the cover material 7 is heat-sealed to the flange portion 64, even if the resin is eluted to the end surface of the flange portion 64, this resin does not adhere to the edge H1 of the peelable surface H. . As a result, a decrease in the opening property due to the elution of the sealing resin can be prevented, and the easy opening property can be ensured.
- the extension of the end portion 61 A of the first layer 6 OA of the flange portion 64 should be at least 1.2 times the distance between the upper surface of the first layer 6 OA and the upper surface of the peelable surface H. As a result, it is possible to reliably prevent the seal resin from adhering to the edge H1 of the peelable surface H.
- the end portion 61A of the first layer 60A also extends to the third layer 60C, a large amount of the sealing resin elutes to the end surface of the flange portion 64. Even, Sea Since the resin adheres only to the outer surface of the end portion 61A of the first layer 60A and can be prevented from adhering to the end surface of the other layer, easy opening can be ensured.
- the first layer 6OA of the flange portion 64 has a cut 64A, the first layer 60A on the outer peripheral side of the cut 64A is covered when the lid 7 is opened. It can be easily peeled off together with the material 7, whereby the easy opening property can be ensured.
- the inner peripheral portion (the first seal portion 641A) of the heat seal portion 641 of the lid member 7 and the flange portion 64 of the container 6 The force that causes stress to concentrate on the inner peripheral edge)
- the inner peripheral edge of the first seal portion 64 1 A is not less than 0.2 mm from the notch 6 4 A in the flange portion 6 4 A. 4 A where almost no stress acts on A. Therefore, the package 1 excellent in pressure resistance can be obtained.
- the flange portion 64 and the lid 7 of the container 6 are composed of the first seal portion 641A and the second seal portion 641 formed in the area of the first seal portion 641A. Since it is welded with B, the package 1 can have high sealing performance.
- the second seal portion 641B elutes to the outer surface of the end portion 61A of the first layer 60A of the flange portion 64, Since the second seal portion 641 B is formed in the region of the first seal portion 641 A, the force at the time of opening is transmitted to the region of the first seal portion 641 A, The lid 7 can be easily opened.
- a punching die 92 is disposed on the seventh layer 60G side of a portion corresponding to the flange portion 64 of the multilayer sheet 2, and is located outside the flange portion 64.
- the seat support 911 is arranged in the area of.
- the support when supporting the portion corresponding to the outside of the flange portion 64 of the multilayer sheet 2, the support is urged from the opposite direction of the first layer 60A, so that the portion supported after the punching can be quickly performed. It is possible to improve the production efficiency because it can be separated at a distance and continuous punching can be performed.
- the lid 7 and the first layer 6OA are configured to be peeled off together due to delamination between the first layer 60A and the second layer 60B of the container 6.
- the second layer may be a cohesive failure resin layer, and destruction may occur in the second layer, and the second layer and the first layer may be peeled off together with the lid material.
- the following configuration can be adopted.
- the first layer is also a cohesive failure resin layer
- the second layer has a harder breaking strength than the first layer.
- the first layer may be a key-destructible resin layer, and when the cover 7 is opened, the first layer may be easily broken and the first layer may be peeled off together with the cover 7.
- the layer that causes breakage contains a polyolefin-based resin and, for example, an elastomer, a soft resin, or an incompatible resin having an elastic modulus of 20 OMPa or less, particularly 150 MPa or less. Is mentioned.
- the soft resin and the elastomer are preferably contained in the polyolefin resin composition at about 3 to 50% by weight.
- the soft resin examples include an ethylene unipolar vinyl compound copolymer.
- EAA ethylene-acrylic acid copolymer
- EMA ethylene-methyl acrylate copolymer
- EMMA ethylene-methacrylic acid copolymer
- E EA ethylene-methyl methacrylate copolymer
- E EA ethylene-ethyl acrylate-maleic anhydride copolymer
- EAA-MAH ethylene-vinyl acetate copolymer or styrene-grafted polypropylene.
- the elastomer examples include an olefin-based elastomer (a copolymer of amorphous ethylene and a ⁇ -olefin such as propylene and butene having a density of 900 kg Zm 3 or less), a styrene-based elastomer, and the like. (Styrene-butadiene block copolymer, styrene-butadiene random copolymer, etc.), and hydrogenated products thereof.
- olefin-based elastomer a copolymer of amorphous ethylene and a ⁇ -olefin such as propylene and butene having a density of 900 kg Zm 3 or less
- styrene-based elastomer and the like.
- the polyolefin-based resin is not particularly limited, and may include polypropylene-based shelves such as homopolypropylene, random polypropylene, and block polypropylene, and polyethylene-based resins such as high-density polyethylene, high-pressure low-density polyethylene, and linear low-density polyethylene. Resin can be exemplified.
- the container 6 is formed by molding the multilayer sheet 2 having a seven-layer structure.
- the force is not limited to this.
- a multilayer sheet on which a peelable surface is formed In other words, a multi-layer sheet having a peelable surface in the inner layer is sufficient.
- the lid member 7 is formed of a sheet having a three-layer structure including the sealant layer 70A, the adhesive resin layer 70B, and the base material layer 70C, but is not limited thereto.
- the sheet may have a layer structure or a sheet having a structure of four or more layers.
- the lid member 7 includes the opening tab 75, but the opening tab may not be provided. By doing so, the shape of the lid member can be further simplified.
- the heat seal portion 641 between the lid member 7 and the container 6 is a two-stage seal including the first seal portion 641A and the second seal portion 641B. However, it can be used as a one-stage seal. Since the container 6 of the present invention can be heat-sealed with the lid 7 at a high temperature and a high pressure, a sufficient sealing property can be obtained even with a single-stage seal: ⁇ .
- the cuts 64 A are formed in the flange portion 64 of the container 6, but the cuts 64 A may not be formed. In this case, when removing the lid material 7, The first layer 6 OA may cause edge breakage.
- the end 601A of the first layer 60A extends to the end face of the third layer 60C, but is not limited thereto, and extends to the bottom surface 61 side beyond the peelable surface H. I'll do it.
- the punching step includes supporting the multilayer sheet 2 on which the container body 65 is formed with the first layer 6 OA of the container 6, that is, the opening 63 facing downward, and supporting the multilayer sheet 2.
- the punch 92 was lowered from above and punched out, but this is not a limitation.
- the punching die 92 may move in the horizontal direction to punch out the multilayer sheet 2, or the punching die 92 may be fixed, and the sheet support 91 may be moved upward from the lower side to punch out. Good.
- the following resin was used as a raw material resin of the multilayer sheet 2 used for forming the container 6, and a seven-layer multilayer sheet 2 was formed by co-extrusion molding.
- Raw material resin polyethylene (HDPE-445M manufactured by Idemitsu Petrochemical Co., Ltd.)
- Raw material resin Polypropylene (E_105 GM manufactured by Idemitsu Petrochemical Co., Ltd.) 80 parts by weight, polyethylene (LDPE-fz-038 manufactured by Mitsubishi Corporation) 20 parts by weight
- Raw material resin polypropylene ( ⁇ —105 GM manufactured by Idemitsu Petrochemical Co., Ltd.)
- Raw material resin modified polyolefin adhesive resin (Adomer QF-500, Mitsui Chemicals, Inc.) Co., Ltd.)
- Raw material resin Ethylene-vinyl alcohol resin (Epal, manufactured by Kuraray Co., Ltd.) [5-2] Layer thickness: 7 ⁇
- Raw resin modified polyolefin adhesive resin (Admer QF-500, manufactured by Mitsui Chemicals, Inc.)
- Raw material resin polypropylene ( ⁇ —105 GM manufactured by Idemitsu Petrochemical Co., Ltd.)
- the container main body 65 was formed on the multi-layer sheet 2 having the above-described structure having a seven-layer structure, and the container 6 was obtained in the same manner as in the above embodiment. That is, the multilayer sheet 2 was arranged so that the opening 63 of the container body 65 was directed downward, the punching die 92 was lowered from the seventh layer 60G side, and the multilayer sheet 2 was punched to obtain the container 6.
- This lid member has the same shape as the lid member 7 of the above embodiment, but has a different layer configuration, and is as follows.
- Raw material resin polyethylene terephthalate ( ⁇ 4274, Mitsui 'Dupont Polychemical Co., Ltd.')
- Raw material resin Modified polyolefin adhesive resin (Admer QF-500, manufactured by Mitsui Chemicals, Inc.)
- Raw material resin Ethylene monobutyl alcohol resin (Epal, Kuraray Co., Ltd.) [3-2] Layer thickness: 14 ⁇
- Raw material resin Modified polyolefin adhesive resin (Adomer QF-500, manufactured by Sangeigaku Co., Ltd.)
- Raw material resin polyethylene (L-LDPE-0238CL, manufactured by Idemitsu Petrochemical Co., Ltd.)
- Such a lid material was heat-sealed so that the sealant layer was in contact with the first layer 6 OA of the flange portion 64 of the container 6.
- the heat sink is a two-stage seal (consisting of the first seal portion 641A and the second seal portion '641B) similar to the knitting embodiment, and has a width of the first seal portion 641A. Is 5 mm and the heat sealing time is 1.5 seconds.
- the heat sealing temperature is 160 ° C, 170 ° C, 180 ° C, 190 ° C, 200 ° C, 210 ° C and 220 ° C.
- a seven-layered multilayer sheet 2 obtained by using the same raw material resin as in the example was molded to obtain a container 100 (see FIG. 9).
- This container 100 has substantially the same size and shape as the container 6 of the embodiment, but differs in the method of punching from the multilayer sheet 2. That is, in the comparative example, when the multilayer sheet 2 was punched, the punch 63 was punched by lowering the punching die from the first layer 6OA side with the opening 63 facing upward.
- Example II the same lid material as in Example I was heat-sealed on the flange portion 101 of the container 100 under the same conditions as in Example.
- o indicates that the opening property was good
- X indicates that the lid material could not be opened.
- the openability was good, and heat sealing was performed at a high temperature of 210 ° C. or more, and at a temperature of: However, it was found that the openability was good.
- the openability was good only under the condition of 170 to 200 ° C. That is, in the comparative example, in the case of heat sealing at 210 ° C. or higher, the sealing resin adheres to the edge of the releasable surface H (see FIG. 9), so that the opening becomes difficult.
- the present invention relates to a container formed by molding a multi-layer sheet and having both hermeticity and easy-openability, a package provided with this container, and a method for producing the container. Available.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/552,145 US7891516B2 (en) | 2003-04-08 | 2004-04-07 | Container, packaging body, and method of manufacturing container |
EP04726296A EP1616811B1 (en) | 2003-04-08 | 2004-04-07 | Container, packaging body, and method of manufacturing container |
AT04726296T ATE502872T1 (de) | 2003-04-08 | 2004-04-07 | Behälter, verpackungskörper und verfahren zur herstellung des behälters |
DE602004031932T DE602004031932D1 (de) | 2003-04-08 | 2004-04-07 | Behälter, verpackungskörper und verfahren zur herstellung des behälters |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003-104153 | 2003-04-08 | ||
JP2003104153A JP4146267B2 (ja) | 2003-04-08 | 2003-04-08 | 容器、包装体及び容器の製造方法 |
Publications (1)
Publication Number | Publication Date |
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WO2004089779A1 true WO2004089779A1 (ja) | 2004-10-21 |
Family
ID=33156845
Family Applications (1)
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PCT/JP2004/005035 WO2004089779A1 (ja) | 2003-04-08 | 2004-04-07 | 容器、包装体及び容器の製造方法 |
Country Status (8)
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US (1) | US7891516B2 (ja) |
EP (1) | EP1616811B1 (ja) |
JP (1) | JP4146267B2 (ja) |
KR (1) | KR101034945B1 (ja) |
CN (1) | CN100450768C (ja) |
AT (1) | ATE502872T1 (ja) |
DE (1) | DE602004031932D1 (ja) |
WO (1) | WO2004089779A1 (ja) |
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US8608895B2 (en) | 2005-01-31 | 2013-12-17 | Idemitsu Unitech Co. Ltd. | Easy-open container, manufacturing method thereof and manufacturing device thereof |
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JP2007118520A (ja) * | 2005-10-31 | 2007-05-17 | Kyoraku Co Ltd | 多層構造体および多層容器 |
PL1878666T3 (pl) * | 2006-07-13 | 2011-03-31 | Impress Metal Packaging Sa | Pokrywa do pojemnika wyposażona w zdzieralną membranę |
US20080264939A1 (en) * | 2007-04-25 | 2008-10-30 | Bray Christopher P | Reduced material container |
EP2138422A1 (de) * | 2008-06-27 | 2009-12-30 | Teich Aktiengesellschaft | Platine zum Verschliessen eines Bechers |
JP5363785B2 (ja) * | 2008-11-10 | 2013-12-11 | 出光ユニテック株式会社 | 多層シート、熱成形容器および易開封性包装体 |
MX2011009628A (es) * | 2009-03-13 | 2011-09-29 | Nestec Sa | Cubiertas compuestas para envases. |
RU2011152101A (ru) * | 2009-05-21 | 2013-06-27 | Мидвествако Корпорейшн | Герметично запечатанные картонные контейнеры с усиленными барьерными характеристиками |
US8430257B2 (en) * | 2009-10-01 | 2013-04-30 | Agilent Technologies, Inc. | Dissolution test vessel with integral verticality control |
JP5878683B2 (ja) * | 2010-03-18 | 2016-03-08 | 出光ユニテック株式会社 | 易開封性容器およびその製造方法 |
US9023445B2 (en) | 2011-10-14 | 2015-05-05 | Kellogg North America Company | Composite containers for storing perishable products |
US8733550B2 (en) | 2012-03-09 | 2014-05-27 | Wki Holding Company, Inc. | Nesting container lids with snap on wings |
USD675057S1 (en) | 2012-03-09 | 2013-01-29 | Wki Holding Company, Inc. | Lid |
USD673807S1 (en) | 2012-03-10 | 2013-01-08 | Wki Holding Company, Inc. | Container lid |
USD673808S1 (en) | 2012-03-10 | 2013-01-08 | Wki Holding Company, Inc. | Container lid |
CA151964S (en) * | 2013-03-15 | 2014-04-17 | Dart Ind Inc | Cover for a food container |
JP6156634B2 (ja) * | 2013-07-01 | 2017-07-05 | サントリー食品インターナショナル株式会社 | 包装体 |
US9096346B2 (en) * | 2013-08-07 | 2015-08-04 | Sonoco Development, Inc. | Flexible package structure with a press-and-pull opening feature |
DE102015205221A1 (de) * | 2015-03-23 | 2016-09-29 | Multivac Sepp Haggenmüller Se & Co. Kg | Tiefziehverpackungsmaschine, Verfahren und Verpackung |
WO2019088082A1 (ja) * | 2017-10-31 | 2019-05-09 | 出光ユニテック株式会社 | 容器 |
JP7137919B2 (ja) * | 2017-10-31 | 2022-09-15 | 出光ユニテック株式会社 | 容器 |
JP2019085123A (ja) * | 2017-11-02 | 2019-06-06 | 昭和電工パッケージング株式会社 | 包装体およびその製造方法 |
US20190135520A1 (en) * | 2017-11-03 | 2019-05-09 | The Quaker Oats Company | Rigid Packages Having Peelable Hermetic Seals |
USD891859S1 (en) * | 2018-10-19 | 2020-08-04 | Rene Ramirez Ramirez | Reusable soda can resealer |
JP6882350B2 (ja) * | 2019-01-23 | 2021-06-02 | 出光ユニテック株式会社 | 内容物入り容器の製造装置、製造方法および容器 |
CN111470179B (zh) * | 2020-05-13 | 2021-06-22 | 广州立白企业集团有限公司 | 一种具有封口膜的包装瓶 |
WO2022087406A1 (en) * | 2020-10-22 | 2022-04-28 | Julian Jeffrey | Taco holder with storage compartment |
US11884466B2 (en) * | 2020-12-11 | 2024-01-30 | Sonoco Development, Inc. | Sustainable barrer containers and methods |
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- 2004-04-07 DE DE602004031932T patent/DE602004031932D1/de not_active Expired - Lifetime
- 2004-04-07 CN CNB2004800092830A patent/CN100450768C/zh not_active Expired - Fee Related
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- 2004-04-07 EP EP04726296A patent/EP1616811B1/en not_active Expired - Lifetime
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Publication number | Publication date |
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CN100450768C (zh) | 2009-01-14 |
US20070164094A1 (en) | 2007-07-19 |
DE602004031932D1 (de) | 2011-05-05 |
EP1616811A4 (en) | 2009-11-11 |
ATE502872T1 (de) | 2011-04-15 |
EP1616811B1 (en) | 2011-03-23 |
CN1771171A (zh) | 2006-05-10 |
JP4146267B2 (ja) | 2008-09-10 |
KR20050112124A (ko) | 2005-11-29 |
KR101034945B1 (ko) | 2011-05-17 |
US7891516B2 (en) | 2011-02-22 |
EP1616811A1 (en) | 2006-01-18 |
JP2004307024A (ja) | 2004-11-04 |
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