EP0698563B1 - Emballage pelable avec couche absorbant l'oxygène - Google Patents
Emballage pelable avec couche absorbant l'oxygène Download PDFInfo
- Publication number
- EP0698563B1 EP0698563B1 EP95305625A EP95305625A EP0698563B1 EP 0698563 B1 EP0698563 B1 EP 0698563B1 EP 95305625 A EP95305625 A EP 95305625A EP 95305625 A EP95305625 A EP 95305625A EP 0698563 B1 EP0698563 B1 EP 0698563B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- barrier layer
- oxygen
- package
- layer
- peelable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 239000001301 oxygen Substances 0.000 title claims abstract description 65
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 65
- 230000002000 scavenging effect Effects 0.000 title claims description 20
- 230000004888 barrier function Effects 0.000 claims abstract description 104
- 239000000463 material Substances 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- 229940123973 Oxygen scavenger Drugs 0.000 abstract description 31
- 239000010410 layer Substances 0.000 description 112
- 239000000047 product Substances 0.000 description 17
- 235000013372 meat Nutrition 0.000 description 9
- 229920001577 copolymer Polymers 0.000 description 8
- 239000002516 radical scavenger Substances 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 7
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- -1 polyethylene Polymers 0.000 description 6
- 239000004800 polyvinyl chloride Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 5
- 239000012466 permeate Substances 0.000 description 5
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000020989 red meat Nutrition 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- YPIFGDQKSSMYHQ-UHFFFAOYSA-M 7,7-dimethyloctanoate Chemical compound CC(C)(C)CCCCCC([O-])=O YPIFGDQKSSMYHQ-UHFFFAOYSA-M 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 150000001993 dienes Chemical class 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 2
- 229920006245 ethylene-butyl acrylate Polymers 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 235000013622 meat product Nutrition 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 229940117958 vinyl acetate Drugs 0.000 description 2
- OJOWICOBYCXEKR-APPZFPTMSA-N (1S,4R)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound CC=C1C[C@@H]2C[C@@H]1C=C2 OJOWICOBYCXEKR-APPZFPTMSA-N 0.000 description 1
- YYGNTYWPHWGJRM-UHFFFAOYSA-N (6E,10E,14E,18E)-2,6,10,15,19,23-hexamethyltetracosa-2,6,10,14,18,22-hexaene Chemical compound CC(C)=CCCC(C)=CCCC(C)=CCCC=C(C)CCC=C(C)CCC=C(C)C YYGNTYWPHWGJRM-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- OBETXYAYXDNJHR-UHFFFAOYSA-N 2-Ethylhexanoic acid Chemical compound CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000013032 Hydrocarbon resin Substances 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- BHEOSNUKNHRBNM-UHFFFAOYSA-N Tetramethylsqualene Natural products CC(=C)C(C)CCC(=C)C(C)CCC(C)=CCCC=C(C)CCC(C)C(=C)CCC(C)C(C)=C BHEOSNUKNHRBNM-UHFFFAOYSA-N 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 238000005865 alkene metathesis reaction Methods 0.000 description 1
- OENHQHLEOONYIE-UKMVMLAPSA-N all-trans beta-carotene Natural products CC=1CCCC(C)(C)C=1/C=C/C(/C)=C/C=C/C(/C)=C/C=C/C=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C OENHQHLEOONYIE-UKMVMLAPSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011648 beta-carotene Substances 0.000 description 1
- TUPZEYHYWIEDIH-WAIFQNFQSA-N beta-carotene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)CCCC1(C)C)C=CC=C(/C)C=CC2=CCCCC2(C)C TUPZEYHYWIEDIH-WAIFQNFQSA-N 0.000 description 1
- 235000013734 beta-carotene Nutrition 0.000 description 1
- 229960002747 betacarotene Drugs 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- QYMGIIIPAFAFRX-UHFFFAOYSA-N butyl prop-2-enoate;ethene Chemical compound C=C.CCCCOC(=O)C=C QYMGIIIPAFAFRX-UHFFFAOYSA-N 0.000 description 1
- SHZIWNPUGXLXDT-UHFFFAOYSA-N caproic acid ethyl ester Natural products CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 235000021466 carotenoid Nutrition 0.000 description 1
- 150000001747 carotenoids Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- QAEKNCDIHIGLFI-UHFFFAOYSA-L cobalt(2+);2-ethylhexanoate Chemical compound [Co+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O QAEKNCDIHIGLFI-UHFFFAOYSA-L 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 108010035264 deoxymyoglobin Proteins 0.000 description 1
- PRAKJMSDJKAYCZ-UHFFFAOYSA-N dodecahydrosqualene Natural products CC(C)CCCC(C)CCCC(C)CCCCC(C)CCCC(C)CCCC(C)C PRAKJMSDJKAYCZ-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- IPCSVZSSVZVIGE-UHFFFAOYSA-M hexadecanoate Chemical compound CCCCCCCCCCCCCCCC([O-])=O IPCSVZSSVZVIGE-UHFFFAOYSA-M 0.000 description 1
- 229920006270 hydrocarbon resin Polymers 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N linoleic acid group Chemical group C(CCCCCCC\C=C/C\C=C/CCCCC)(=O)O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000005609 naphthenate group Chemical group 0.000 description 1
- SJYNFBVQFBRSIB-UHFFFAOYSA-N norbornadiene Chemical compound C1=CC2C=CC1C2 SJYNFBVQFBRSIB-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 108010050846 oxymyoglobin Proteins 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920002589 poly(vinylethylene) polymer Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920003245 polyoctenamer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920003246 polypentenamer Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229920006298 saran Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229940031439 squalene Drugs 0.000 description 1
- TUHBEKDERLKLEC-UHFFFAOYSA-N squalene Natural products CC(=CCCC(=CCCC(=CCCC=C(/C)CCC=C(/C)CC=C(C)C)C)C)C TUHBEKDERLKLEC-UHFFFAOYSA-N 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- OENHQHLEOONYIE-JLTXGRSLSA-N β-Carotene Chemical compound CC=1CCCC(C)(C)C=1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C OENHQHLEOONYIE-JLTXGRSLSA-N 0.000 description 1
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
- 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
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
- B65D81/268—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being enclosed in a small pack, e.g. bag, included in the package
-
- 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
- B65D77/2048—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 whereby part of the container or cover has been weakened, e.g. perforated or precut
- B65D77/2056—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 whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened
-
- 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
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
- B65D81/267—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being in sheet form
-
- 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
- B65D2577/2091—Lines of weakness or apertures in cover
Definitions
- the invention relates to packages for products such as fresh red meat products and, specifically, to to a peelable barrier package having an oxygen scavenging layer.
- the package includes an inner oxygen-permeable member which may be gas flushed or evacuated.
- the package preserves the freshness of the meat until the meat is ready to be marketed to the consumer.
- the outer wrapper is removed and the inner package is displayed to the consumer.
- the inner wrapper admits oxygen to the interior of the package causing the fresh meat product to change to a bright red color which the consumer associates with freshness.
- the inner pouch of the Weinke package may consist of polyethylene film and the outer pouch may be cellophane film with a coating of saran (vinylidene chloride copolymer.)
- saran vinylene chloride copolymer
- the material disclosed in Grindrod et al. is a laminate of PVC/Saran and EVA/Saran.
- EVA designates ethylene/vinylacetate copolymer
- PVC designates polyvinyl-chloride.
- the EVA and PVC layers are the inner layers and at the periphery of the package they are sealed together.
- the saran layers can be readily peeled from the respective EVA or PVC layers with gripping tabs that are provided.
- the outer barrier layer typically still allows permeation of small amounts of oxygen which may shorten the shelf life of the package. This is particularly true of packages having an ethylene vinyl alcohol copolymer (EVOH) barrier layer which can lose some of its oxygen barrier properties when subjected to very high moisture conditions.
- EVOH ethylene vinyl alcohol copolymer
- an oxygen scavenger layer which serves both to scavenge oxygen trapped in the interior of the package during packaging and which also serves to enhance the effectiveness of the barrier layer by trapping or capturing oxygen which permeates the barrier layer so as to provide an "active" barrier to oxygen.
- oxygen scavenger materials in permanent or non-peelable layers of packaging is known. See, for example, European Patent Application No. EP 507207 A2.
- the transparency of the oxygen scavenger layer is often important because it remains in place during display to the consumer.
- the peelable barrier layer and the scavenging means may be substantially impervious to oxygen.
- the non-barrier layer which is substantially pervious to oxygen is exposed.
- the invention relates to a peelable barrier package for oxygen sensitive products such as fresh red meats.
- a package in accordance with the invention is generally indicated by reference numeral 10.
- package 10 includes an oxygen scavenger component which improves the characteristics of the package.
- oxygen scavenger refers to a composition, layer, article, coating, sachet, or the like which consumes, reacts with, depletes or reduces the amount of oxygen in a given environment.
- Package 10 includes a bottom web or support member 12 for supporting a product 14, an oxygen permeable non-barrier layer 16 enclosing product 14 on bottom web 12 and sealed thereto, an oxygen impermeable, peelable barrier layer 18 disposed over non-barrier layer 16, and an oxygen scavenger member or layer 20 disposed between non-barrier layer 16 and barrier layer 18.
- Package 10 also preferably includes a member such as pull tab 22 for use in initiating peel of barrier layer 18 and preferably of oxygen scavenger layer 20 from package 10.
- Figs. 2 and 3 illustrate an enlarged portion corresponding to the circled section of Fig. 1 to more clearly illustrate the invention.
- oxygen scavenger layer 20 serves to scavenge oxygen from within package 10, and also to enhance the barrier nature of barrier layer 18 by trapping or scavenging oxygen which permeates barrier layer 18 from outside the package. In this manner, product 14 has enhanced shelf life due to increased protection from oxygen. Furthermore, because oxygen scavenger layer 20 would in use typically be removed prior to display to the consumer, the appearance of oxygen scavenger layer 20 is sometimes of less importance.
- tab 22 or any other suitable mechanism can be used to peel and remove barrier layer 18 and scavenger layer 20 so that oxygen is allowed to permeate non-barrier layer 16 and oxygenate product 14 so as to provide product 14 with a bright red "bloom" (in the case where the product is fresh red meat) which the consumer associates with freshness.
- non-barrier layer 16 is substantially pervious to oxygen and preferably allows an oxygen transmission of at least about 2000, and more preferably at least about 5000, cc O 2 per square meter over a 24 hour period at 23°C at one atmosphere. Such an oxygen transmission rate allows a rapid "bloom" of a fresh red meat product so that barrier layer 18 need be removed only a short time prior to placement of the package on display for the consumer.
- suitable materials include polyvinyl-chloride (PVC), ethylene/vinylacetate copolymers (EVA), ethylene butyl acrylate copolymer (EBA), and polyolefins such as polyethylene. Those skilled in the art will understand that other suitable materials are available for layer 16.
- Barrier layer 18 preferably allows an oxygen transmission of less than or equal to about 1000, more preferably less than or equal to about 500, and most preferably less than about 100,cc O 2 per square meter over a 24 hour period at 23°C at one atmosphere. Barrier layer 18 thereby serves to inhibit oxygen transmission so as to extend shelf life of product 14 in package 10. Barrier layer 18 also serves, as will be further described below, to limit the contact of oxygen from the surrounding atmosphere with oxygen scavenger layer 20 so that the scavenging capacity of oxygen scavenger layer 20 is not prematurely or rapidly exhausted by oxygen from outside the package.
- barrier layer 18 Numerous materials are known for providing desired oxygen barrier characteristics of barrier layer 18. Examples of suitable materials include but are not limited to ethylene/vinyl alcohol copolymer (EVOH), silica (SiO 2 ) coating, amorphous nylon, polyester, liquid crystalline polymer, and saran (vinylidine chloride copolymer or PVDC).
- EVOH ethylene/vinyl alcohol copolymer
- SiO 2 silica
- amorphous nylon amorphous nylon
- polyester liquid crystalline polymer
- saran vinylidine chloride copolymer or PVDC
- the optimal combination of oxygen transmission of both the barrier layer 18 and non-barrier layer 16 will depend on a variety of factors, including the nature of product 14, the packaging and storage temperatures, thickness of the respective layers, desired shelf life, etc.
- Oxygen scavenger layer 20 serves to scavenge oxygen which may remain inside package 10 after packaging, and also serves to capture oxygen which may permeate barrier layer 18.
- oxygen scavenger layer 20 and barrier layer 18 serve to provide an active barrier which is substantially impervious to oxygen.
- Numerous oxygen scavenging materials are known in the art.
- ethylenically unsaturated hydrocarbon resins have an excellent capacity for reaction with oxygen.
- the ethylenically unsaturated hydrocarbon may be substituted or unsubstituted.
- An unsubstituted ethylenically unsaturated hydrocarbon has at least one aliphatic carbon-carbon double bond and comprises 100% by weight carbon and hydrogen.
- unsubstituted ethylenically unsaturated hydrocarbons include, but are not limited to, diene polymers such as polyisoprene, (e.g., transpolyisoprene), polybutadiene (especially 1,2-polybutadienes, which are defined as those polybutadienes possessing greater than or equal to 50% 1,2 microstructure), and copolymers thereof, e.g. styrene-butadiene.
- diene polymers such as polyisoprene, (e.g., transpolyisoprene), polybutadiene (especially 1,2-polybutadienes, which are defined as those polybutadienes possessing greater than or equal to 50% 1,2 microstructure), and copolymers thereof, e.g. styrene-butadiene.
- Such hydrocarbons also include polymeric compounds such as polypentenamer, polyoctenamer, and other polymers prepared by olefin metathesis; diene oligomers such as squalene; and polymers or copolymers derived from dicyclopentadiene, norbornadiene, 5-ethylidene-2-norbornene, or other monomers containing more than one carbon-carbon double bond (conjugated or non-conjugated). These hydrocarbons further include carotenoids such as ⁇ -carotene.
- a substituted ethylenically unsaturated hydrocarbon as used herein is one which has at least one aliphatic carboncarbon double bond and comprises about 50% - 99% by weight carbon and hydrogen.
- Preferred substituted ethylenically unsaturated hydrocarbons include, but are not limited to, those with oxygen-containing moieties, such as esters, carboxylic acids, aldehydes, ethers, ketones, alcohols, peroxides, and/or hydroperoxides.
- oxygen-containing moieties such as esters, carboxylic acids, aldehydes, ethers, ketones, alcohols, peroxides, and/or hydroperoxides.
- Specific examples of such hydrocarbons include, but are not limited to, condensation polymers such as polyesters derived from monomers containing carbon-carbon double bonds; unsaturated fatty acids such as oleic, ricinoleic, dehydrated ricinoleic, and linoleic acids and derivatives thereof, e.g. esters.
- Such hydrocarbons also include polymers or copolymers derived from (meth)allyl (meth)acrylates.
- scavenger layer 20 may also comprise a mixture of any number of the foregoing materials.
- the ethylenically unsaturated hydrocarbon preferably has two or more ethylenically unsaturated groups per molecule, and more preferably is a polymeric compound having three or more ethylenically unsaturated groups and an average molecular weight of at least about 1000.
- oxygen scavenger layer 20 may preferably include a catalyst to accelerate the scavenging rate of the oxygen scavenging material.
- Transition metal catalysts are preferred, preferably in the form of a transition metal salt.
- Suitable transition metals include but are not limited to metals selected from the first, second or third transition series of the Periodic Table such as, for example, manganese II or III, iron II or III, cobalt II or III, nickel II or III, copper I or II, rhodium II, III or IV, and ruthenium.
- the metal is further preferably iron, nickel or copper, more preferably manganese and most preferably cobalt.
- Suitable counterions of the metal salt include but are not limited to chloride, acetate, stearate, palmitate, 2-ethylhexanoate, neodecanoate or naphthenate.
- Particularly preferable salts include cobalt (II) 2-ethylhexanoate and cobalt II neodecanoate.
- the catalyst When incorporated into scavenger layer 20, the catalyst accelerates scavenging of oxygen so as to render scavenger layer 20 more effective.
- Support member 12 may be any suitable tray (e.g. foamed polystyrene tray) or bottom material on which product 14 rests.
- tray e.g. foamed polystyrene tray
- support member 12 should be made from a barrier material or contain a layer, film, laminate, coating or the like of an oxygen-or gas-barrier material.
- package 10 is peelable in that barrier layer 18 is peelable or removable from the package to provide bloom when desired.
- Oxygen scavenger layer 20 is preferably also removed along with barrier layer 18.
- oxygen scavenger layer 20 and barrier layer 18 can together comprise a composite or multi-layer film or laminate so that they are peeled together.
- oxygen scavenger layer 20 could be provided in the form of a packet or sachet positioned between non-barrier layer 16 and barrier layer 18 so that removal of peelable barrier layer 18 allows the packet to be removed as well.
- the oxygen scavenger can be provided as a coating on the interior (i.e. towards the product) surface of barrier layer 18.
- the oxygen scavenger can also comprise a sachet or packet 20a (see Fig. 6).
- a single film 16 comprising an oxygen permeable material can be sealed to an inner flange 30 of tray 12, and a second, barrier/scavenging film can be sealed to an outer flange 32 of the same tray 12.
- barrier layer 18 can be monolayer or multilayer construction.
- Barrier layer 18 can be directly adhered to oxygen scavenging layer 20, or indirectly adhered by one or more adhesive or other layers.
- the drawings generally show monolayer construction for purposes of clarity.
- Figures 2 and 3 show a barrier layer 18 which actually includes three layers, 15, 17, and 19, any one or more of which comprise the oxygen barrier materials referred to herein.
- Tab 22 as shown in the drawings is one way of initiating the peel. It is also known to perforate or score an edge of package 10 and provide a pull tab for peeling both layers 16, 18. Such a configuration is illustrated in Fig. 5. Perforations shown at 28 cause the rupture of non-barrier layer 16 and allow barrier layer 18 and oxygen scavenger layer 20 to be peeled as shown while the remainder of non-barrier layer 16 is left in place on package 10 and still enclosing product 14. In accordance with the invention, numerous other mechanisms may of course be utilized to provide peeling of barrier layer 18.
- Scavenger layer 20 may be attached or adhered to barrier layer 18 and thereby peels simultaneously therewith, or may be removed separately after peeling of barrier layer 18.
- non-barrier layer 16 and barrier layer 18 can be carried out in accordance with any of numerous conventional processes such as stretch wrapping, heat shrinking, vacuum skin or differential pressure, or any other suitable procedure. In some of these procedures, such as stretch wrapping, some oxygen may remain in an inner space 24 of package 10 (Fig. 1). In this instance, oxygen scavenger layer 20 serves both to supplement the oxygen barrier characteristics of barrier layer 18 and also to remove the remaining oxygen.
- the non-barrier layer 16 is provided with perforations 26 (Fig. 3) for increasing oxygen transmission or permeability of non-barrier layer 16. Perforations 26 serve to increase the access of scavenger layer 20 to gases in inner space 24 and thereby help to provide a rapid scavenging of remaining oxygen from inner space 24.
- non-barrier layer 16 can be applied together with barrier layer 18 and scavenger layer 20, or may be applied first, before application of barrier layer 18 and scavenger layer 20.
- non-barrier layer 16 may be applied in the same or a different manner than barrier layer 18.
- non-barrier layer 16 may be a vacuum skin wrap with barrier layer 18 stretch wrapped over non-barrier layer 16.
- both layers 16, 18 are applied under vacuum conditions (i.e., as skin wraps, see Fig. 4), it is less likely that space 24 will contain oxygen, and inner space 24 may not be formed at all. In such packages, the primary function of oxygen scavenger layer 20 is to enhance and supplement the barrier nature of barrier layer 18.
- a package containing a peelable oxygen barrier layer and an oxygen scavenger layer whereby the package has enhanced shelf life.
- the oxygen scavenger layer advantageously serves to render the barrier layer more effective and thereby create an "active" oxygen barrier.
- the oxygen scavenger also serves to remove oxygen from within the package, which is necessary to preserve a deoxymyoglobin color of fresh meat, so that the meat will adequately oxygenate to oxymyoglobin color upon removal of the barrier layer.
- the peelable nature of the package allows removal of the barrier layer and oxygen scavenger so that the remaining non-barrier layer allows oxygen to permeate and "bloom" the product contained in the package.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Packages (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Claims (3)
- Un emballage (10), comprenant :un produit (14) ;une paroi de fond (12) qui supporte le produit;une couche ne faisant par barrière (16) scellée à la paroi de fond et qui entoure le produit; etune couche pelable thermoplastique faisant barrière (18) disposée de manière pelable sur la couche ne faisant pas barrière;
- Un emballage selon la revendication 1 dans lequel la couche pelable faisant barrière et les moyens d'expulsion sont pratiquement imperméables à l'oxygène et, lorsque la couche pelable faisant barrière et les moyens d'expulsion sont retirés, la couche ne faisant pas barrière, laquelle est pratiquement perméable à l'oxygène, est exposée à l'extérieur.
- Un emballage selon la revendication 1 ou 2, dans lequel la couche faisant barrière et les moyens d'expulsion sont des couches d'un film pelable composite disposées de manière pelable sur la couche ne faisant pas barrière.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29517794A | 1994-08-23 | 1994-08-23 | |
US295177 | 1994-08-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0698563A1 EP0698563A1 (fr) | 1996-02-28 |
EP0698563B1 true EP0698563B1 (fr) | 2000-03-08 |
Family
ID=23136567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95305625A Expired - Lifetime EP0698563B1 (fr) | 1994-08-23 | 1995-08-11 | Emballage pelable avec couche absorbant l'oxygène |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0698563B1 (fr) |
JP (1) | JPH0858850A (fr) |
AT (1) | ATE190288T1 (fr) |
AU (1) | AU698070B2 (fr) |
BR (1) | BR9503757A (fr) |
CA (1) | CA2156039C (fr) |
DE (1) | DE69515397T2 (fr) |
DK (1) | DK0698563T3 (fr) |
ES (1) | ES2143593T3 (fr) |
NZ (1) | NZ272738A (fr) |
PT (1) | PT698563E (fr) |
ZA (1) | ZA956729B (fr) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ264453A (en) | 1994-09-14 | 1998-06-26 | Meat Research Corp | Package wherein the production of carbon dioxide is independent of the removal of oxygen |
US6248380B1 (en) | 1995-06-06 | 2001-06-19 | Cryovac, Inc. | Package having a dual-film lid comprising a gas-impermeable film and a delaminatable, gas-permeable film |
US5919547A (en) * | 1995-06-06 | 1999-07-06 | Cryovac, Inc. | Laminate having a coextruded, multilayer film which delaminates and package made therefrom |
US5686126A (en) * | 1995-06-06 | 1997-11-11 | W. R. Grace & Co.-Conn. | Dual web package having improved gaseous exchange |
CN1129631C (zh) * | 1996-03-07 | 2003-12-03 | 克里奥瓦克公司 | 除氧膜中的功能阻隔层 |
US6083585A (en) * | 1996-09-23 | 2000-07-04 | Bp Amoco Corporation | Oxygen scavenging condensation copolymers for bottles and packaging articles |
US5779832A (en) * | 1996-11-25 | 1998-07-14 | W. R. Grace & Co.-Conn. | Method and apparatus for making a peelable film |
AU5361698A (en) * | 1996-11-25 | 1998-06-22 | W.R. Grace & Co.-Conn. | Package having a multiple-film lid comprising a gas-impermeable film peelably adhered to a gas-permeable film |
US5779050A (en) * | 1997-03-11 | 1998-07-14 | W. R. Grace & Co.-Conn. | Lidded package having a tab to facilitate peeling |
US6686006B1 (en) * | 1997-05-16 | 2004-02-03 | Cyrovac, Inc. | Amorphous silica in packaging film |
US5916615A (en) * | 1997-06-18 | 1999-06-29 | W. R. Grace & Co.-Conn. | Case-ready packages having smooth, gas-permeable substrates on the bottoms thereof to reduce or prevent discoloration when placed in a stack |
WO1999012829A1 (fr) * | 1997-09-09 | 1999-03-18 | Peterson Scanproof Aktiebolag | Materiau d'emballage |
US6670023B2 (en) | 1997-12-02 | 2003-12-30 | Cryovac, Inc. | Laminate for case-ready packaging including a gas-impermeable film capable of delaminating into a gas-permeable portion and a gas-impermeable portion, and a gas-permeable film bonded thereto |
US6032800A (en) * | 1998-05-14 | 2000-03-07 | Cryovac, Inc. | Laminate and package made therefrom |
CN100348299C (zh) * | 2001-09-11 | 2007-11-14 | 爱司得化学株式会社 | 被膜剥离型除湿剂 |
DE60235129D1 (de) * | 2001-11-01 | 2010-03-04 | Idemitsu Unitech Co Ltd | Atmosphärenverbesserndes Zipverschlussband |
DE20211075U1 (de) * | 2002-07-22 | 2003-12-11 | Rpc Bramlage Gmbh | Behälterförmige Verpackungen |
PL1674407T3 (pl) * | 2004-12-22 | 2014-11-28 | Nestec Sa | Pojemnik na produkt spożywczy i sposób podgrzewania tego pojemnika |
ITAN20130158A1 (it) * | 2013-08-27 | 2015-02-28 | Domus Care Societa A Responsabilit A Limitata | Contenitore per prodotti deperibili. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3681092A (en) | 1968-10-25 | 1972-08-01 | Dow Chemical Co | Fresh meat packaging |
US3574642A (en) | 1969-05-15 | 1971-04-13 | American Can Co | Package for and method of packaging meats |
US3713849A (en) | 1970-04-15 | 1973-01-30 | Mayer & Co Inc O | Meat package |
US4055672A (en) * | 1972-04-10 | 1977-10-25 | Standard Packaging Corporation | Controlled atmosphere package |
JP2926724B2 (ja) * | 1988-11-09 | 1999-07-28 | 三菱瓦斯化学株式会社 | 酸素吸収体収納袋及びその切断方法 |
CA2062083C (fr) | 1991-04-02 | 2002-03-26 | Drew Ve Speer | Compositions, systemes et methodes pour eliminer l'oxygene |
IL100022A0 (en) * | 1991-11-11 | 1992-08-18 | Shirat Ltd | Aluminum with controlled oxidation |
-
1995
- 1995-08-08 NZ NZ272738A patent/NZ272738A/en unknown
- 1995-08-09 AU AU28452/95A patent/AU698070B2/en not_active Ceased
- 1995-08-11 ES ES95305625T patent/ES2143593T3/es not_active Expired - Lifetime
- 1995-08-11 EP EP95305625A patent/EP0698563B1/fr not_active Expired - Lifetime
- 1995-08-11 ZA ZA956729A patent/ZA956729B/xx unknown
- 1995-08-11 DK DK95305625T patent/DK0698563T3/da active
- 1995-08-11 DE DE69515397T patent/DE69515397T2/de not_active Expired - Fee Related
- 1995-08-11 AT AT95305625T patent/ATE190288T1/de not_active IP Right Cessation
- 1995-08-11 PT PT95305625T patent/PT698563E/pt unknown
- 1995-08-14 CA CA002156039A patent/CA2156039C/fr not_active Expired - Fee Related
- 1995-08-17 JP JP7230686A patent/JPH0858850A/ja active Pending
- 1995-08-22 BR BR9503757A patent/BR9503757A/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE190288T1 (de) | 2000-03-15 |
CA2156039C (fr) | 2000-10-24 |
JPH0858850A (ja) | 1996-03-05 |
AU698070B2 (en) | 1998-10-22 |
NZ272738A (en) | 1998-01-26 |
DE69515397T2 (de) | 2000-07-27 |
ES2143593T3 (es) | 2000-05-16 |
PT698563E (pt) | 2000-08-31 |
CA2156039A1 (fr) | 1996-02-24 |
DK0698563T3 (da) | 2000-06-05 |
DE69515397D1 (de) | 2000-04-13 |
AU2845295A (en) | 1996-03-07 |
ZA956729B (en) | 1996-03-28 |
BR9503757A (pt) | 1996-04-16 |
EP0698563A1 (fr) | 1996-02-28 |
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