NO863757L - PROCEDURE FOR PACKAGING GOODS. - Google Patents
PROCEDURE FOR PACKAGING GOODS.Info
- Publication number
- NO863757L NO863757L NO863757A NO863757A NO863757L NO 863757 L NO863757 L NO 863757L NO 863757 A NO863757 A NO 863757A NO 863757 A NO863757 A NO 863757A NO 863757 L NO863757 L NO 863757L
- Authority
- NO
- Norway
- Prior art keywords
- container
- mixture
- edges
- lid
- stated
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 47
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 31
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 12
- 238000004321 preservation Methods 0.000 claims abstract description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 12
- 239000004416 thermosoftening plastic Substances 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000003431 cross linking reagent Substances 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000006459 hydrosilylation reaction Methods 0.000 claims description 3
- 238000006068 polycondensation reaction Methods 0.000 claims description 3
- 229920006136 organohydrogenpolysiloxane Polymers 0.000 claims description 2
- 239000004821 Contact adhesive Substances 0.000 claims 1
- 239000011499 joint compound Substances 0.000 claims 1
- 235000015504 ready meals Nutrition 0.000 claims 1
- 238000000151 deposition Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- -1 methacryloxy Chemical group 0.000 description 17
- 150000003254 radicals Chemical class 0.000 description 16
- 238000007789 sealing Methods 0.000 description 12
- 239000010408 film Substances 0.000 description 10
- 235000013305 food Nutrition 0.000 description 10
- 239000010410 layer Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 7
- 239000002131 composite material Substances 0.000 description 7
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 235000021487 ready-to-eat food Nutrition 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011104 metalized film Substances 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000007669 thermal treatment Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical compound [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- UAHWPYUMFXYFJY-UHFFFAOYSA-N beta-myrcene Chemical compound CC(C)=CCCC(=C)C=C UAHWPYUMFXYFJY-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 125000000753 cycloalkyl group Chemical group 0.000 description 2
- 125000001188 haloalkyl group Chemical group 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- ORGHESHFQPYLAO-UHFFFAOYSA-N vinyl radical Chemical compound C=[CH] ORGHESHFQPYLAO-UHFFFAOYSA-N 0.000 description 2
- OBETXYAYXDNJHR-UHFFFAOYSA-N 2-Ethylhexanoic acid Chemical compound CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 241000245772 Gasteria Species 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical group [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010023230 Joint stiffness Diseases 0.000 description 1
- 101100065249 Neosartorya fumigata (strain ATCC MYA-4609 / Af293 / CBS 101355 / FGSC A1100) encC gene Proteins 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical class ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- JJLKTTCRRLHVGL-UHFFFAOYSA-L [acetyloxy(dibutyl)stannyl] acetate Chemical compound CC([O-])=O.CC([O-])=O.CCCC[Sn+2]CCCC JJLKTTCRRLHVGL-UHFFFAOYSA-L 0.000 description 1
- CQQXCSFSYHAZOO-UHFFFAOYSA-L [acetyloxy(dioctyl)stannyl] acetate Chemical compound CCCCCCCC[Sn](OC(C)=O)(OC(C)=O)CCCCCCCC CQQXCSFSYHAZOO-UHFFFAOYSA-L 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- XQBCVRSTVUHIGH-UHFFFAOYSA-L [dodecanoyloxy(dioctyl)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCCCCCC)(CCCCCCCC)OC(=O)CCCCCCCCCCC XQBCVRSTVUHIGH-UHFFFAOYSA-L 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- VYBREYKSZAROCT-UHFFFAOYSA-N alpha-myrcene Natural products CC(=C)CCCC(=C)C=C VYBREYKSZAROCT-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- PCVVBHUFWPHCAL-UHFFFAOYSA-N butane-1,4-diol;terephthalic acid Chemical compound OCCCCO.OC(=O)C1=CC=C(C(O)=O)C=C1 PCVVBHUFWPHCAL-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- SHZIWNPUGXLXDT-UHFFFAOYSA-N caproic acid ethyl ester Natural products CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004966 cyanoalkyl group Chemical group 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 229920005645 diorganopolysiloxane polymer Polymers 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001198 elastomeric copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 150000002688 maleic acid derivatives Chemical class 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000011140 metalized polyester Substances 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- AICOOMRHRUFYCM-ZRRPKQBOSA-N oxazine, 1 Chemical compound C([C@@H]1[C@H](C(C[C@]2(C)[C@@H]([C@H](C)N(C)C)[C@H](O)C[C@]21C)=O)CC1=CC2)C[C@H]1[C@@]1(C)[C@H]2N=C(C(C)C)OC1 AICOOMRHRUFYCM-ZRRPKQBOSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 150000003057 platinum Chemical class 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 150000004756 silanes Chemical group 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 150000003509 tertiary alcohols Chemical class 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229910052905 tridymite Inorganic materials 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K3/1006—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by the chemical nature of one of its constituents
- C09K3/1018—Macromolecular compounds having one or more carbon-to-silicon linkages
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/02—Inorganic compounds
- C09K2200/0243—Silica-rich compounds, e.g. silicates, cement, glass
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Laminated Bodies (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
Description
Foreliggende oppfinnelse vedrører en fremgangsmåte for emballering av næringsmiddelprodukter og ferdigmatbrett som tillater å sikre en lang oppbevaring ved vanlig temperatur bestående i at: - næringsmiddelproduktet eventuelt i form av ferdigmat anbringes i en beholder hvor kantene er belagt på siden for å lime et lag av termoplastmaterial på basis av en eventuelt strukket film The present invention relates to a method for packaging food products and ready-to-eat trays which allows to ensure a long storage at normal temperature consisting of: - the food product, possibly in the form of ready-to-eat food, is placed in a container where the edges are coated on the side in order to glue a layer of thermoplastic material on basis of a possibly stretched film
på kantene av beholderen og/eller lokket påføres en blanding som kan omdannes til en elastomer skjøt som kleber til termoplastrnaterial on the edges of the container and/or the lid is applied a mixture that can be converted into an elastomeric joint that adheres to the thermoplastic material
lokket bringes på plass på beholderen og tillukkingen gjennomføres under innvirkning av et svakt trykk som bringer silikonskjøten til å klebe til lokket og beholderen, og det særegne ved fremgangsmåten er at man som skjøtblanding anvender en silikonblanding som kleber til termoplastmateria1. the lid is brought into place on the container and the closure is carried out under the influence of a weak pressure which causes the silicone joint to stick to the lid and the container, and the peculiarity of the method is that a silicone mixture which adheres to thermoplastic material is used as joint compound1.
Disse og andre trekk ved oppfinnelsen fremgår av patentkrav-ene . These and other features of the invention appear in the patent claims.
Oppfinnelsen vedrører således en fremgangsmåte for emballering av næringsmidler og ferdigmat ved tett forsegling av en beholder som inneholder næringsmidlet eller ferdigmaten med et lokk, ved hjelp av en skjøt som kleber fast til beholderen og lokket. Denne operasjon betegnes i det følgende ved ut-trykket tillukking. The invention thus relates to a method for packaging foodstuffs and ready-to-eat food by tightly sealing a container containing the food or ready-to-eat food with a lid, using a joint that sticks firmly to the container and the lid. This operation is denoted in the following by the expression closure.
Man kjenner tidligere forseglede emballasjer for næringsmidler eller ferdigmat oppnådd ved forsegling av et lokk på kantene av en beholder hvor kantene er av aluminium eller glass, eller også dekket av et eventuelt termoforseglbart termoplastlag. Forseglingen kan alt etter arten av de mate-rialer som skal forsegles skje ved ultralyd-behandling, termisk behandling særlig i tilfellet hvor materialene har evne til termoforsegling, eller også ved avsetning av en skjøt som tett og klebende forener kantene av beholderen og lokket. Sealed packaging for foodstuffs or ready-to-eat food is previously known, obtained by sealing a lid on the edges of a container where the edges are made of aluminum or glass, or also covered by an optional heat-sealable thermoplastic layer. Depending on the nature of the materials to be sealed, the sealing can be done by ultrasonic treatment, thermal treatment, especially in the case where the materials have the ability to heat seal, or also by depositing a joint that tightly and adhesively unites the edges of the container and the lid.
Oppfinnelsen vedrører mer presist det område hvor kantene av beholderen som skal tillukkes er belagt med en termoplastfilm, idet forseglingen sikres ved hjelp av en tett skjøt. Man vet at på området med emballering av næringsmidler skal skjøten samtidig tilfredsstille tallrike krav som: The invention relates more precisely to the area where the edges of the container to be closed are coated with a thermoplastic film, the seal being secured by means of a tight joint. It is known that in the area of food packaging, the joint must simultaneously satisfy numerous requirements such as:
- lett anvendelse- easy application
- mulighet for anvendelse på maskiner med høy hastighet næringsmiddelkarakter for forseglingsskjøten tetthet mot gass og væsker såvel som overfor bakterier for - possibility of use on machines with high speed food grade for the sealing joint tightness against gas and liquids as well as against bacteria for
en emballasje for lang oppbevaringa packaging for long storage
elastomer karakter av skjøtene, særlig med en lav elas-tisitetsmodul . elastomeric nature of the joints, especially with a low modulus of elasticity.
I den tyske patentansøkning 3 009 007 er det således beskrevet en fremgangsmåte for tillukking hvor man anvender et kaldklebemiddel avsatt på kantene av beholderen som skal forsegles og som bringes i kontakt og sammenpresses med et lokk som også rundt sin omkrets er påført et kaldklebemiddel for skjøten. Klebemidlet utgjøres av en polymer harpiks avsatt i form av en vandig dispersjon. In the German patent application 3 009 007, a method for closure is thus described where a cold adhesive is applied on the edges of the container to be sealed and which is brought into contact and pressed together with a lid which also has a cold adhesive applied around its circumference for the joint. The adhesive consists of a polymer resin deposited in the form of an aqueous dispersion.
I US patentskrift 4 032 492 er det beskrevet en varmsmelte-blanding som tillater å klebe et lokk på kantene av en beholder for næringsmidler. Varmsmeltelimet utgjøres av en blanding av parafin, elastomer kopolymer, hydrokarbonolje, termoplastharpiks inneholdende vinylaromatisk enheter og en liten mengde silikonolje. Anvendelse av denne blanding tillater at skjøten får gode egenskaper med tetthet, klebing, kjemisk motstandsevne og evne til deformasjon. In US Patent 4,032,492, a hot-melt mixture is described which allows a lid to be glued to the edges of a food container. The hot melt adhesive consists of a mixture of paraffin, elastomeric copolymer, hydrocarbon oil, thermoplastic resin containing vinyl aromatic units and a small amount of silicone oil. Use of this mixture allows the joint to have good properties with tightness, adhesion, chemical resistance and ability to deform.
En ytterligere vanskelighet opptrer på området med anvendelse av beholdere oppnådd direkte ved tilforming av deformerbare plastbaner som lett kan omdannes til beholdere med bunn, tilpassede sider og kanter og med en viss stivhet (motstand mot deformasjon). Man iakttar generelt ved å undersøke beholderen nærværet av fine folder i de deler som forener tilstøtende tilpassede sider over bunnen. Disse folder som danner fine spor finnes likeledes på de deler av kantene som forener de forskjellige kanter som bæres av sidene av beholderen, i form av stort sett rette linjer. Nærværet av disse folder utgjør en kilde for vanskeligheter idet det etter tillukkingen ikke er lett å sikre en tetthet av beholderen ved stedet for de fine spor, på grunn av den manglende planhet på disse steder av kantene som skal motta forseglingsskjøten. A further difficulty occurs in the area of using containers obtained directly by forming deformable plastic webs which can easily be converted into containers with a bottom, adapted sides and edges and with a certain rigidity (resistance to deformation). One generally observes, by examining the container, the presence of fine folds in the parts that unite adjacent fitted sides above the bottom. These folds which form fine grooves are also found on the parts of the edges which unite the different edges carried by the sides of the container, in the form of mostly straight lines. The presence of these pleats constitutes a source of difficulty since, after closure, it is not easy to ensure a tightness of the container at the location of the fine grooves, due to the lack of flatness at these locations of the edges which are to receive the sealing joint.
Oppfinnelsen vedrører nettopp dette formål idet den tilveie-bringer en fremgangsmåte som avhjelper denne ulempe. The invention relates precisely to this purpose in that it provides a method which remedies this disadvantage.
De silikonblandinger som kan anvendes er generelt herdbare organopolysiloksan-blandinger i form av elastomere eller harpiksmaterialer enten med vanlig temperatur eller ved høy-ere temperaturer (opptil 200°C). Disse blandinger kleber til termoplastmaterialer (polyolefiner, polyestere....) enten ved deres egen art (autoklebekarakter) eller ved forhåndspå-føring av en grunning på belegget som skal forsegles. The silicone mixtures that can be used are generally curable organopolysiloxane mixtures in the form of elastomeric or resin materials either at normal temperature or at higher temperatures (up to 200°C). These mixtures adhere to thermoplastic materials (polyolefins, polyesters...) either by their own nature (self-adhesive character) or by prior application of a primer to the coating to be sealed.
A - Enkomponent- organopolysiloksan- blandingerA - One-component organopolysiloxane mixtures
Disse blandinger kan være av enkomponent-typen, dvs. at de er stabile ved lagring i fravær av fuktighet og herder i nærvær av denne. Herdingen påskyndes ved tilsetning av et middel som tilfører vann eller frigir vann, f .eks. ved reaksjoner med forbindelser tilstede i selve blandingen. Man kan således tilsette alkalimetallhydroksyder eller hydratiserte fosfater (franske patentskrifter 2 540 128 og 2 540 129). De forskjellige organopolysiloksan-blandinger som anvendes og de forskjellige mulige bestanddeler er beskrevet i tallrike patentskrifter og særlig i franske patentskrifter 2 393 831 og 2 405 985... These mixtures can be of the one-component type, i.e. they are stable when stored in the absence of moisture and harden in the presence of this. Curing is accelerated by the addition of an agent that adds water or releases water, e.g. by reactions with compounds present in the mixture itself. One can thus add alkali metal hydroxides or hydrated phosphates (French patents 2 540 128 and 2 540 129). The various organopolysiloxane mixtures used and the various possible components are described in numerous patent documents and in particular in French patent documents 2 393 831 and 2 405 985...
B - Tokomponent- organopolysiloksan- blandingerB - Two-component organopolysiloxane mixtures
Bl - Tokomponent- organopolysiloksan- blandinger som herdes ved polyaddisjon ( hydrosilylering) Bl - Two-component organopolysiloxane mixtures that are cured by polyaddition (hydrosilylation)
Det dreier seg således om blandinger som herdes ved polyaddisjon, dvs. ved reaksjon mellom hydrogensilyl-grupper med silylgrupper som bærer etylenumettethet. For at disse blandinger skal være selvklebende er det nødvendig at de inneholder klebende organosilisiumformidler som er vel kjent på området som f.eks. silaner som bærer grupper knyttet til silisiumatornet av etylen-, alkoksyl-, akryloksylalkyl-, metakryloksyl-, alkyl-typen (se f.eks. fransk patentskrift 2 474 519 og US patentskrift 4 196 273). Blandingene inneholder likeledes en katalysator for hydrosilylering-reaksjoner (platina, platinaderivat eller platina kompleks) . These are thus mixtures that are hardened by polyaddition, i.e. by reaction between hydrogensilyl groups with silyl groups that carry ethylene unsaturation. In order for these mixtures to be self-adhesive, it is necessary that they contain adhesive organosilicon agents which are well known in the field, such as e.g. silanes bearing groups attached to the silicon atom of the ethylene, alkoxy, acryloxyalkyl, methacryloxy, alkyl type (see, for example, French patent specification 2,474,519 and US patent specification 4,196,273). The mixtures also contain a catalyst for hydrosilylation reactions (platinum, platinum derivative or platinum complex).
Mer detaljert kan organopolysiloksan-blandingen består av følgende: (1) idet minste et organopolysiloksan som pr. molekyl inneholder minst et vinylradikal, idet de andre radikaler er enverdige eller toverdige organiske radikaler som ikke utøver noen ugunstig innvirkning på den katalytiske aktivitet. (2) idet minste et organohydrogenpolysiloksan inneholdende minst 3 hydrogenatomer knyttet til silisium pr. molekyl, idet de andre radikaler er organiske enverdige eller toverdige radikaler, foretrukket uten alifatisk umettethet og som ikke utøver noen ugunstig innvirkning på den katalytiske aktivitet . (3) en katalysator som er et kompleks av et metall i pla-tinagruppen i tilstrekkelig mengde for å få (1) og (2) til å reagere. In more detail, the organopolysiloxane mixture can consist of the following: (1) at least one organopolysiloxane which per molecule contains at least one vinyl radical, the other radicals being monovalent or divalent organic radicals which do not exert any unfavorable influence on the catalytic activity. (2) at least one organohydrogenpolysiloxane containing at least 3 hydrogen atoms linked to silicon per molecule, the other radicals being organic monovalent or divalent radicals, preferably without aliphatic unsaturation and which do not exert any adverse effect on the catalytic activity. (3) a catalyst which is a complex of a platinum group metal in sufficient amount to cause (1) and (2) to react.
De andre radikaler som bæres av silisiumatomene i polysilok- sanene kan velges blant alle for dette området og foretrukket kan disse radikaler være alkylradikaler med 1 til 3 karbonatomer (metyl, etyl, n-propyl) eller fenylradikalet. The other radicals carried by the silicon atoms in the polysiloxanes can be chosen from among all for this area and preferably these radicals can be alkyl radicals with 1 to 3 carbon atoms (methyl, ethyl, n-propyl) or the phenyl radical.
Eventuelt kan blandingen omfatte fyllstoffer som tillater forbedring av de mekaniske egenskaper og/eller gassugjennom-trengeligheten, forskjellige bestanddeler (anti soppmidler, baktericider) såvel som et inhiberende middel som f.eks. kan velges blant alle de forbindelser som er kjent for dette formål og særlig forbindelser som myrcen eller dets derivater, acetyleniske -klorketoner, acetyleniske tertiære alko-holer og triorganosilylmaleinater. Optionally, the mixture may include fillers that allow improvement of the mechanical properties and/or gas impermeability, various components (anti-fungal agents, bactericides) as well as an inhibitory agent such as e.g. may be chosen from among all the compounds known for this purpose and in particular compounds such as myrcene or its derivatives, acetylenic chloroketones, acetylenic tertiary alcohols and triorganosilyl maleates.
B2 - Tokomponent- blandinger som herdes ved polykondense-r ing B2 - Two-component mixtures which are hardened by polycondensation
Polysiloksanblandingene kan både være tokomponent-blandinger som herdes ved polykondensering ved vanlig temperatur eller hvor kondenseringen påskyndes ved oppvarming. Disse blandinger omfatter generelt: a) et c< dihydroksylert polydiorganosiloksan med viskositet fra 500 mPa.s ved 25°C til 500.000 mPa.s og som hovedsakelig utgjøres av diorganosiloksyenheter Ql^^io] som kan omfatte en mengde på høyst 1% av andre grupper som vanligvis er tilstede som forurensninger som f.eks. RSiO^^'The polysiloxane mixtures can both be two-component mixtures which are hardened by polycondensation at normal temperature or where the condensation is accelerated by heating. These mixtures generally comprise: a) a c< dihydroxylated polydiorganosiloxane with a viscosity of from 500 mPa.s at 25°C to 500,000 mPa.s and which consists mainly of diorganosiloxic units Ql^^io] which may comprise an amount of at most 1% of other groups that are usually present as contaminants such as RSiO^^'
(R-^SiO^^ oc3 S^- ®4/ 2 nvor:'- R ^an velges blant radikaler kjent på området, som f.eks. alkylradikaler med 1 ti 13 karbonatomer (metyl, etyl, n-propyl) vinylradikalet, fenyl-radika let, trifluorpropyl-radikalet. (R-^SiO^^ oc3 S^- ®4/ 2 nvor:'- R ^an is chosen from among radicals known in the field, such as, for example, alkyl radicals with 1 to 13 carbon atoms (methyl, ethyl, n-propyl) the vinyl radical , phenyl radical let, the trifluoropropyl radical.
Fordelaktig er minst 60% av de totale radikaler R metyl-radikaler og høyst 1% er vinylradikaler. b) et fornetningsmiddel R^ a~SiYa hvori R har den ovennevnte betydning, a er et tall 3 eller 4, Y er en hydrolyser-bar eller kondenserbar gruppe. Advantageously, at least 60% of the total radicals R are methyl radicals and at most 1% are vinyl radicals. b) a crosslinking agent R^ a~SiYa in which R has the above meaning, a is a number 3 or 4, Y is a hydrolysable or condensable group.
Som eksempel på fornetningsmidler anvender man fordelaktig polyalkoksysilaner og spesielt med formel: As an example of cross-linking agents, one advantageously uses polyalkoxysilanes and especially with the formula:
De ovennevnte fornetningsmidler kan helt eller delvis erstattes med polyalkoksypolysiloksaner hvor hvert molekyl omfatter minst 2 og foretrukket 3 hydrolyserbare grupper, idet de andre valenser av silisium er mettet med siloksan-bindinger SiO- og SiR. Som eksempler på polymere fornetningsmidler kan nevnes etylpolysilikat. The above-mentioned crosslinking agents can be completely or partially replaced with polyalkoxypolysiloxanes where each molecule comprises at least 2 and preferably 3 hydrolyzable groups, the other valences of silicon being saturated with siloxane bonds SiO- and SiR. Ethyl polysilicate can be mentioned as examples of polymeric crosslinking agents.
c) en katalysator valgt blant:c) a catalyst selected from:
Cl) salter av tinn, jern, karboksylsyrer som 2-etyl-heksanoat, stearat, oleat, tinn-naftenat, jern-naftenat C.2) organotinnsalter av karboksylsyrer som di(n-butyl) tinn-diacetat og di(n-butyl) tinn-dilaurat, di(n-oktyl) tinn-diacetat og di(n-oktyl) tinn-dilaurat, dimetyl-tinn-di-2. heksanoat, di{n-butyl) tinn-diversatate, di(n-oktyl) tinn-sukssinat og di(n-oktyl) tinn-maleinat . Cl) salts of tin, iron, carboxylic acids such as 2-ethyl hexanoate, stearate, oleate, tin naphthenate, iron naphthenate C.2) organotin salts of carboxylic acids such as di(n-butyl) tin diacetate and di(n-butyl ) tin dilaurate, di(n-octyl) tin diacetate and di(n-octyl) tin dilaurate, dimethyltin-di-2. hexanoate, di{n-butyl) stannous diversatate, di(n-octyl) stannous succinate and di(n-octyl) stannous maleate.
C.3) tinngelater med formel:C.3) tin gels with formula:
hvori: in which:
Radikalene R^og R2er like eller forskjellige ^ 2.~(" 12 a lkylradika ler , ci_c^2a lk°ksyra<3ika ler « C1_C12a^ e~nylradikaler, c±~ ci2 acYlra<3ikal, ci_C6acyloksy- The radicals R^ and R2 are the same or different ^ 2.~(" 12 a lkyl radicals ler , ci_c^2a lk°xyra<3ika ler « C1_C12a^ e~nyl radicals, c±~ ci2 acYlra<3ical, ci_C6acyloxy-
radikaler, C^-Cg eventuelt halogenerte cykloalkylradika-radicals, C^-Cg optionally halogenated cycloalkyl radicals-
ler, et mono-nukleært arylradikal som eventuelt er halogenert, et mono-nukleært arylalkylradika1 med C^-C^alkyl-radikal, idet R^og R£ er forskjellige fra hydrogenatom- ler, a mono-nuclear aryl radical which is optionally halogenated, a mono-nuclear aryl alkyl radical with a C^-C^ alkyl radical, wherein R^ and R£ are different from hydrogen atom-
et . a .
R^og R,- er like eller forskjellige og velges blant hydrogenatomer, et radikal som ikke inneholder mer enn høyst omtrent 8 karbonatomer valgt blant alkyl-halogenalkyl, cyanatalkyl, alkoksy, halogenalkoksy, cyanalkoksy, mono-nukleært aryl som eventuelt er halogenert og mono-nukleært arylalkyl som eventuelt er halogenert med C^-C^ alkyldel. R^ and R,- are the same or different and are selected from hydrogen atoms, a radical containing no more than about 8 carbon atoms at most selected from alkyl-haloalkyl, cyanatealkyl, alkoxy, haloalkyl, cyanoalkyl, mononuclear aryl which is optionally halogenated and mono -nuclear arylalkyl which is optionally halogenated with a C₁-C₁ alkyl part.
R^velges blant hydrogenatom, et radikal som ikke inneholder mer enn omtrent 8 karbonatomer valgt blant alkyl, halogenalkyl og aryl eller R^kan også sammen med R^ R^ is selected from hydrogen atom, a radical containing no more than about 8 carbon atoms selected from alkyl, haloalkyl and aryl or R^ can also together with R^
danne et cyklisk hydrokarbonradika1 inneholdende høyst 12 karbonatomer og som eventuelt er substituert med klorradikal-er, nitroradikaler og cyanradikaler. form a cyclic hydrocarbon radical1 containing no more than 12 carbon atoms and which is optionally substituted with chlorine radicals, nitro radicals and cyan radicals.
Tinngelatene er kjente produkter og deres fremstilling er f.eks. beskrevet i US patentskrift 3 055 845. Tin gelates are well-known products and their production is, for example, described in US Patent 3,055,845.
Blandingene inneholder foretrukket ytterligere et middel som begunstiger klebingen som et mono- eller poly-aminoalkyl-alkoksysilan som f.eks. forbindelser med formel: The mixtures preferably further contain an agent that favors the adhesion, such as a mono- or poly-aminoalkyl-alkyl oxysilane such as e.g. compounds with formula:
Når blandingene inneholder det klebefremmende middel kan de tilsettes en organopolysiloksanharpiks valgt foretrukket blant slike med enheter R^SiO^^°9S^ °4/ 2' slike When the mixtures contain the adhesion-promoting agent, an organopolysiloxane resin can be added to them, preferably selected from those with units R^SiO^^°9S^ °4/ 2' such
blandinger er f.eks. beskrevet i fransk 2 228 814.mixtures are e.g. described in French 2,228,814.
B3 - Organopolysiloksan-blandinger som kleber ved enkel kontakt B3 - Organopolysiloxane compounds that adhere by simple contact
Disse blandinger inneholder reaksjonsproduktet mellom et cC,JU) dihydroksylert diorganopolysiloksan og en harpiks som utgjør-es av enheter (CH^ )-^SiO^^ 0(3 ^"""^4/2"Slike bland- These mixtures contain the reaction product between a cC,JU) dihydroxylated diorganopolysiloxane and a resin consisting of units (CH^ )-^SiO^^ 0(3 ^"""^4/2" Such mixtures
inger er beskrevet f.eks. i fransk patentskrift 2 128 941, belgisk patentskrift 888 096 og US patentskrift 4 309 520. Dette er klebemidler som har en utmerket bestandighet overfor aldring og varme. ings are described, e.g. in French patent document 2,128,941, Belgian patent document 888,096 and US patent document 4,309,520. These are adhesives that have excellent resistance to aging and heat.
Oppfinnelsen tillater særlig tett emballering av ferdigmat i beholdere som kalles "bakker" omfattende en bunn, flere til-støtende tilskårne sider tilpasset i forhold til bunnen og som utgjør et kontinuerlig belte omkring bunnen. Bakkene omfatter likeledes en kontinuerlig kant stort sett parallell med bunnen og tillater en kontinuerlig sammenføyning med lokket . The invention allows particularly dense packaging of ready-made food in containers called "trays" comprising a bottom, several adjacent cut sides adapted to the bottom and forming a continuous belt around the bottom. The trays likewise comprise a continuous edge largely parallel to the bottom and allow a continuous joining with the lid.
Oppfinnelsen tillater anvendelse av de nevnte bakker som eventuelt på enkelte av sine overflater og særlig i hjørnene har kanter som ikke er fullstendig plane og kanter som kan ha uregelmessige overflater som f.eks. små folder og fine riss. The invention allows the use of the mentioned slopes which possibly on some of their surfaces and especially in the corners have edges that are not completely flat and edges that may have irregular surfaces such as e.g. small folds and fine scratches.
Bakkene er kjent i seg selv idet deres art, antall sider og materialet som de er tildannet av ikke er kritiske, på den betingelse som er nevnt om at de forseglbare kanter på den side som skal forsegles er dekket med en amorf, mono-aksialt eller bi-aksialt strukket termoplastfilm. The trays are known per se in that their nature, number of sides and the material from which they are formed are not critical, on the condition mentioned that the sealable edges on the side to be sealed are covered with an amorphous, mono-axial or bi-axially stretched thermoplastic film.
Fordelaktig er bakkene dekket på innsiden og på kantene med det samme termoplastbelegg. Utsiden av bakkene utgjøres av et material som blir stivt etter å være bragt i form av en beholder. Fordelaktig er dette material som danner den ut-vendige vegg papp eller et hvilket som helst ekvivalent mate rial som hovedsakelig bibeholder sin form etter tinndannelse av beholderen. Anvendelse av kartong e.l. material frembyr blant annet en fordel at man kan trykke forskjellige inskrip-sjoner og/eller tegninger. Advantageously, the slopes are covered on the inside and on the edges with the same thermoplastic coating. The outside of the slopes is made up of a material that becomes rigid after being brought into the form of a container. Advantageously, this material which forms the outer wall is cardboard or any equivalent material which mainly retains its shape after tin formation of the container. Application of cardboard etc. material offers, among other things, an advantage that you can print different inscriptions and/or drawings.
Innenfor oppfinnelsens ramme kan man anvende bakker oppnådd fra emballasje-komposittark bestående av en plastfilm som er forenet med et material som sikrer stivheten av beholderen etter dens tildannelse. Foretrukket anvendes et komposittark som utgjøres av en termoplastfilm som er limt til en kartong. Beholderen fremstilles ved hjelp av konvensjonelle metoder og særlig ved blåseforming eller dyptrekking, tilkutting og liming. Foretrukket består termoplastfilmen som skal ha nær-ingsmiddelkvalitet under de termiske behandlinger som den underkastes, av en polyolefinbasis (polyetylen, polypropylen), polyestere (polyetylenglykolterefta lat, tetramety-lenglykolterefta lat) . Within the framework of the invention, you can use trays obtained from packaging composite sheets consisting of a plastic film that is combined with a material that ensures the rigidity of the container after its formation. Preferably, a composite sheet is used which consists of a thermoplastic film which is glued to a cardboard. The container is produced using conventional methods and in particular by blow molding or deep drawing, cutting and gluing. Preferably, the thermoplastic film, which must have food quality during the thermal treatments to which it is subjected, consists of a polyolefin base (polyethylene, polypropylene), polyesters (polyethylene glycol terephthalate, tetramethylene glycol terephthalate).
Fordelaktig anvendes en film av polyetylenglykoltereftalat som sikrer en utmerket motstand ved termiske behandlinger som emballasjen underkastes. Det siste sikrer særlig unngåelse av enhver fare for ødeleggelse av næringsmidlene eller ferdigmaten ved nedbrytningsprodukter fra termoplastmate-rialet, ved tilberedning av næringsmidlene eller ved deres fornyede oppvarming. Disse termiske operasjoner kan gjennom-føres i emballasjen etter lukking eller åpning eller også ved fornyet oppvarming av bakken. Advantageously, a film of polyethylene glycol terephthalate is used which ensures an excellent resistance to thermal treatments to which the packaging is subjected. The latter ensures in particular the avoidance of any risk of destruction of the nutrients or ready-made food due to breakdown products from the thermoplastic material, during preparation of the nutrients or when they are reheated. These thermal operations can be carried out in the packaging after closing or opening or also by reheating the ground.
Ved en variant av oppfinnelsen kan man erstatte termoplast-belegget som bæres av beholderen (eller av kantene av beholderen) med et komposittbelegg som utgjøres av en film som på en av sine sideflater har et termoplastlag og omfattende andre vanlig anvendte lag innen sammensatte filmer for emballering (ett eller flere lag, ett eller barrierelag f.eks. overfor gass, på basis av etylenvinylacetatpolymer, metall-lag, klebelag). Fordelaktig anvendes en metallisert film f.eks. av metallisert polypropylen eller polyester. Foretrukket anvendes en aluminium-metallisert film av polyetylenglykoltereftalat på grunn av de gode egenskaper av metalliserte polyesterfilmer. Hvis man ønsker å sikre en meget god barriere overfor oksygen eller vanndamp kan den metalliserte film bestå av en samling av to metalliserte termoplastfilmer limt mot hverandre. In a variant of the invention, the thermoplastic coating carried by the container (or by the edges of the container) can be replaced with a composite coating consisting of a film which on one of its side surfaces has a thermoplastic layer and includes other commonly used layers within composite films for packaging (one or more layers, one or barrier layer, e.g. against gas, based on ethylene vinyl acetate polymer, metal layer, adhesive layer). Advantageously, a metallized film is used, e.g. of metallized polypropylene or polyester. An aluminium-metallized film of polyethylene glycol terephthalate is preferably used due to the good properties of metallized polyester films. If you want to ensure a very good barrier against oxygen or water vapour, the metallized film can consist of a collection of two metallized thermoplastic films glued to each other.
Med hensyn til lokket utgjøres dette generelt av et enkelt eller sammensatt plastark av analog art med det som bærer beholderkantene på forseglingssiden. Lokket kan således være en enkel eller sammensatt termoplastfilm med et lag som tidligere beskrevet, egnet til å bli tettende forseglet med en silikonskjøt som tidligere beskrevet. Lokket kan i det enkelte tilfelle være et plastark limt til en kartong eller også et metall-lag som et aluminiumlag eller endelig et komposittark inneholdende et aluminiumark. With regard to the lid, this generally consists of a single or composite plastic sheet of an analogous nature to that which carries the container edges on the sealing side. The lid can thus be a simple or composite thermoplastic film with a layer as previously described, suitable for being hermetically sealed with a silicone joint as previously described. In the individual case, the lid can be a plastic sheet glued to a carton or also a metal layer such as an aluminum layer or finally a composite sheet containing an aluminum sheet.
Fremgangsmåten i henhold til oppfinnelsen består i at man umiddelbart før forseglingen på kantene av beholderen og/eller kantene av lokket avsetter en tynn film av den tidligere beskrevne silikonblanding. Forseglingen sikres ved å bringe lokket og beholderen i kontakt med hverandre under ut-øvelse av et svakt trykk og eventuelt en kort oppvarming i en kort periode. The method according to the invention consists in depositing a thin film of the previously described silicone mixture on the edges of the container and/or the edges of the lid immediately before sealing. The seal is ensured by bringing the lid and the container into contact with each other while exerting a weak pressure and possibly a short heating for a short period.
Kokingen av næringsmidlene kan gjennomføres før tillukkingen eller etter denne ved hjelp av en hvilken som helst kjent prosess som f.eks. autoklavbehandling. The cooking of the foodstuffs can be carried out before the closure or after this by means of any known process such as e.g. autoclave treatment.
Fremgangsmåten i henhold til oppfinnelsen er særlig interes-sant idet den tillater oppbevaring av matbakkene som inne-holdes i det indre av beholderen. The method according to the invention is particularly interesting in that it allows storage of the food trays contained in the interior of the container.
Tettheten som oppnås synes å være tilfredsstillende overfor væsker, gass og bakterier. The density achieved seems to be satisfactory against liquids, gas and bacteria.
Oppfinnelsen er illustert ved hjelp av fig. 1 og 2 som viser forseglingen gjennomført med en bakke av trapezoidal form og hvor kantene ikke er fullstendig plane (nærvær av fine riss i hjørnene). Fig. 1 viser et snitt gjennom embaliasjebeholderen forseglet med sitt lokk (vist i symmetriplanet av emballasjen). Fig. 2 viser et perspektivriss av en bakke for fremstilling av den emballasje som anvendes ved oppfinnelsen. Fig. 1 og 2 er ikke tegnet i noen bestemt målestokk. The invention is illustrated by means of fig. 1 and 2 which show the seal completed with a trapezoidal shaped hill and where the edges are not completely flat (presence of fine cracks in the corners). Fig. 1 shows a section through the packaging container sealed with its lid (shown in the plane of symmetry of the packaging). Fig. 2 shows a perspective view of a tray for manufacturing the packaging used in the invention. Fig. 1 and 2 are not drawn to any specific scale.
I fig. 1 bemerker man kartongen 1, polyesterfilmen 2, sili-konsk jøten 3 og lokket 4. In fig. 1 note the carton 1, the polyester film 2, the silicone joint 3 and the lid 4.
Fig. 2 tillater iakttagelse av nærværet av små riss 5 i hjørnene av beholderkanten. Fig. 2 allows observation of the presence of small cracks 5 in the corners of the container edge.
Bakken som anvendes har en rektangulær bunn med stort sett regelmessige hjørner og for dimensjon 12 x 13 cm er dybden 4,5 cm. Kantene er hovedsakelig horisontale og har en bredde på 0,5 cm. De omskriver i det samme plan en rektangulær basis med hjørner anordnet stort sett for dimensjoner 15 x 17 cm. The tray used has a rectangular bottom with largely regular corners and for dimensions 12 x 13 cm the depth is 4.5 cm. The edges are mainly horizontal and have a width of 0.5 cm. They rewrite in the same plane a rectangular base with corners arranged mostly for dimensions 15 x 17 cm.
Eksempel 1Example 1
Fremgangsmåten i henhold til oppfinnelsen realiseres med bakker som beskrevet i fig. 1 og 2. Lokket består av det samme material som i bakken. Det dreier seg om et aluminium-metallisert polyetylenglykoltereftalat limt til kartong. The method according to the invention is realized with slopes as described in fig. 1 and 2. The lid consists of the same material as in the ground. It is an aluminium-metallized polyethylene glycol terephthalate glued to cardboard.
På kantene av bakken med dimensjoner som angitt påføres ved hjelp av en automatisk maskin en strime med omtrent 0,5 cm bredde tilsvarende omtrent 3 g pr. lineær meter skjøt av en silikonblanding oppnådd ved blanding av: On the edges of the ground with dimensions as indicated, a strip of approximately 0.5 cm width corresponding to approximately 3 g per square meter is applied using an automatic machine. linear meter joint of a silicone mixture obtained by mixing:
En ferdigrett (kylling med ris) anbringes i bakken og man ut-øver deretter et svakt trykk med lokket på bakken hvoretter emballasjen innføres i en ovn ved 150°C (varighet 20 sek.). A ready-made dish (chicken with rice) is placed on the ground and a slight pressure is then exerted with the lid on the ground, after which the packaging is placed in an oven at 150°C (duration 20 sec.).
Man iakttar en utmerket konservering av ferdigretten i emballasjen i en tid av 9 måneder ved vanlig temperatur. Excellent preservation of the ready-made dish in the packaging is observed for a period of 9 months at normal temperature.
Eksempel 2Example 2
Eksempel 1 gjentas bortsett fra at forbehandlingen ved hjelp av en grunning ikke gjennomføres, men ved at man i blandingen innfører 5 deler metakroyloksypropyltrimetoksysilan. Resultatene ved forseglingen og konserveringen identiske med resultatene i eksempel 1. Example 1 is repeated except that the pretreatment by means of a primer is not carried out, but by introducing 5 parts of methacroyloxypropyltrimethoxysilane into the mixture. The results of the sealing and conservation identical to the results in example 1.
Eksempel 3Example 3
Forseglingen av bakkene gjennomføres under anvendelse av organopolysiloksanblandingen tildannet ved blanding av: 100 deler av encC,^dihydroksypolydimetylpolysiloksanolje The sealing of the slopes is carried out using the organopolysiloxane mixture formed by mixing: 100 parts of encC,^dihydroxypolydimethylpolysiloxane oil
med viskositet 2500 mPa.s ved 25°Cwith viscosity 2500 mPa.s at 25°C
50 deler av en 60% oppløsning av en harpiks dannet av enheter (CH^J^SiOg 5 og Si02 fordelt i molarforhold- 50 parts of a 60% solution of a resin formed from units (CH^J^SiOg 5 and SiO2 distributed in molar ratio-
et 0,6 og med 2,5% OH-radikalera 0.6 and with 2.5% OH radicals
- 40 deler malt kvarts med midlere partikkelstørrelse 5 mikrometer - 40 parts of ground quartz with an average particle size of 5 micrometres
5,5 deler av et silan med formel: 5.5 parts of a silane with formula:
(CH30)3Si-(CH2)3NHCH2NH2(CH 3 O) 3 Si-(CH 2 ) 3 NHCH 2 NH 2
11 deler av et etylsilikat med 40% silisiumoksyd 11 parts of an ethyl silicate with 40% silicon oxide
Resultatene ved forseglingen og konserveringen er analoge med resultatene beskrevet i eksempel 1. The results of the sealing and preservation are analogous to the results described in example 1.
Eksempel 4Example 4
Man tilsetter 10 g perkarbonat av O-O-tert.butyl og O-iso-propyl til en blanding inneholdende: 10 g of percarbonate of O-O-tert.butyl and O-iso-propyl are added to a mixture containing:
Blandingen oppvarmes under redusert trykk for etter fjernelse av den største del av toluenet å oppnå en temperatur i blandingen på 150°c og et trykk på 15 mm kvikksølv. Disse be- handlingsbetingelser opprettholdes i en periode på 1 time. Man oppnår da en klebrig limsubstans som er viskøs i varm tilstand og hard og klebrig i kald tilstand. Substansen kan fortynnes i alle forhold i vanlige løsningsmidler. The mixture is heated under reduced pressure to achieve, after removal of the largest part of the toluene, a temperature in the mixture of 150°c and a pressure of 15 mm of mercury. These treatment conditions are maintained for a period of 1 hour. A sticky adhesive substance is then obtained which is viscous in the hot state and hard and sticky in the cold state. The substance can be diluted in any ratio in common solvents.
Denne klebesubstans anvendes som forseglingsblanding for bakkene etter fremstilling av en 60% oppløsning i cykloheksan. Etter påsmøring, tørking i vanlig luft og pressing oppnås emballsjer med resultater for forsegling og konservering som er identiske med resultatene i de foregående eksempler. This adhesive substance is used as a sealing compound for the slopes after preparing a 60% solution in cyclohexane. After application, drying in normal air and pressing, packages are obtained with results for sealing and preservation which are identical to the results in the previous examples.
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8514307A FR2587684B1 (en) | 1985-09-24 | 1985-09-24 | PACKAGING PROCESS FOR FOOD ARTICLES, ESPECIALLY COOKED DISHES, PROVIDING A LONG SHELF LIFE AT AMBIENT TEMPERATURE |
Publications (2)
Publication Number | Publication Date |
---|---|
NO863757D0 NO863757D0 (en) | 1986-09-22 |
NO863757L true NO863757L (en) | 1987-03-25 |
Family
ID=9323284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO863757A NO863757L (en) | 1985-09-24 | 1986-09-22 | PROCEDURE FOR PACKAGING GOODS. |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0220997B1 (en) |
AT (1) | ATE37841T1 (en) |
DE (1) | DE3660896D1 (en) |
DK (1) | DK453086A (en) |
FI (1) | FI863837A (en) |
FR (1) | FR2587684B1 (en) |
NO (1) | NO863757L (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988009292A1 (en) * | 1987-05-20 | 1988-12-01 | Toyo Seikan Kaisha, Ltd. | Easily openable sealed container |
FR2657849B1 (en) * | 1990-02-02 | 1992-05-22 | Ono | PROCESS FOR PRODUCING PLASTIC CONTAINERS OBTAINED BY THERMOFORMING AND PROVIDED WITH A PEELABLE CLOSURE. |
FR2697532B1 (en) * | 1992-10-30 | 1994-12-16 | Rhone Poulenc Chimie | Use of silicone compositions for the treatment of flat seals, in particular cylinder head seals. |
ES2110758T3 (en) * | 1993-05-14 | 1998-02-16 | Gurit Essex Ag | LIQUID CONTAINER. |
DE59507388D1 (en) * | 1995-05-18 | 2000-01-13 | Sonderhoff Ernst Fa | Screw lid seal for airtightly packaged products, in particular foodstuffs, and method for producing the screw lid seal |
EP0847933B1 (en) * | 1996-12-11 | 2003-09-24 | Alcan Technology & Management AG | Method for producing lid material and use thereof |
DK0983947T4 (en) | 1998-09-01 | 2009-02-09 | Alcan Tech & Man Ag | Lid and method for making the same |
DE10350089B4 (en) * | 2003-10-27 | 2007-04-05 | Alcan Deutschland Gmbh | Deep drawing device for deep drawing a workpiece |
FR2864545A1 (en) * | 2003-12-30 | 2005-07-01 | Rhodia Chimie Sa | Production of foamed seal on lacquered metal substrate, especially for sealing food container lids, by applying strip containing crosslinkable silicone and adhesion promoter, then crosslinking and foaming |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2848568A1 (en) * | 1978-11-09 | 1980-05-22 | Aluminium Walzwerke Singen | METHOD FOR CLOSING GLASS CONTAINERS WITH PLASTIC-COVERED METAL FILMS |
US4220342A (en) * | 1979-05-29 | 1980-09-02 | Dana Corporation | Gasket having polysiloxane sealant layer containing organotitanate |
DE3200035A1 (en) * | 1981-04-18 | 1982-11-04 | Kabushiki Kaisha Hosokawa Yoko, Tokyo | METHOD FOR FASTENING LIDS ON GLASS CONTAINERS |
US4469258A (en) * | 1982-08-06 | 1984-09-04 | Champion International Corporation | Tray with compound sealed lid |
-
1985
- 1985-09-24 FR FR8514307A patent/FR2587684B1/en not_active Expired
-
1986
- 1986-09-18 AT AT86420235T patent/ATE37841T1/en not_active IP Right Cessation
- 1986-09-18 DE DE8686420235T patent/DE3660896D1/en not_active Expired
- 1986-09-18 EP EP86420235A patent/EP0220997B1/en not_active Expired
- 1986-09-22 NO NO863757A patent/NO863757L/en unknown
- 1986-09-23 DK DK453086A patent/DK453086A/en not_active Application Discontinuation
- 1986-09-23 FI FI863837A patent/FI863837A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ATE37841T1 (en) | 1988-10-15 |
DE3660896D1 (en) | 1988-11-17 |
FR2587684B1 (en) | 1988-03-11 |
FI863837A (en) | 1987-03-25 |
FI863837A0 (en) | 1986-09-23 |
EP0220997B1 (en) | 1988-10-12 |
DK453086A (en) | 1987-03-25 |
FR2587684A1 (en) | 1987-03-27 |
NO863757D0 (en) | 1986-09-22 |
EP0220997A1 (en) | 1987-05-06 |
DK453086D0 (en) | 1986-09-23 |
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