EP2061652A2 - Thermoformbares verpackungsmaterial mit schrumpfeigenschaften - Google Patents
Thermoformbares verpackungsmaterial mit schrumpfeigenschaftenInfo
- Publication number
- EP2061652A2 EP2061652A2 EP07801943A EP07801943A EP2061652A2 EP 2061652 A2 EP2061652 A2 EP 2061652A2 EP 07801943 A EP07801943 A EP 07801943A EP 07801943 A EP07801943 A EP 07801943A EP 2061652 A2 EP2061652 A2 EP 2061652A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- shrinkable
- film
- packaging
- multilayer film
- 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.)
- Withdrawn
Links
- 239000005022 packaging material Substances 0.000 title description 6
- 238000004806 packaging method and process Methods 0.000 claims abstract description 191
- 238000003856 thermoforming Methods 0.000 claims abstract description 64
- 238000000034 method Methods 0.000 claims abstract description 54
- 239000010408 film Substances 0.000 claims description 280
- 239000010410 layer Substances 0.000 claims description 221
- 238000007789 sealing Methods 0.000 claims description 81
- 238000010438 heat treatment Methods 0.000 claims description 43
- 238000001816 cooling Methods 0.000 claims description 27
- 230000004888 barrier function Effects 0.000 claims description 23
- -1 polyethylene Polymers 0.000 claims description 23
- 239000002318 adhesion promoter Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 20
- 239000002826 coolant Substances 0.000 claims description 19
- 229920000642 polymer Polymers 0.000 claims description 18
- 229920000098 polyolefin Polymers 0.000 claims description 18
- 229920001577 copolymer Polymers 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- 239000013039 cover film Substances 0.000 claims description 11
- 235000013305 food Nutrition 0.000 claims description 11
- 229920001684 low density polyethylene Polymers 0.000 claims description 11
- 239000004702 low-density polyethylene Substances 0.000 claims description 11
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 10
- 239000005977 Ethylene Substances 0.000 claims description 10
- 239000004712 Metallocene polyethylene (PE-MC) Substances 0.000 claims description 9
- 239000000155 melt Substances 0.000 claims description 9
- 229920006257 Heat-shrinkable film Polymers 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 239000002344 surface layer Substances 0.000 claims description 8
- 229920001169 thermoplastic Polymers 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 6
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 4
- 239000004700 high-density polyethylene Substances 0.000 claims description 4
- 229920000554 ionomer Polymers 0.000 claims description 4
- 239000005394 sealing glass Substances 0.000 claims description 4
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 3
- 239000007767 bonding agent Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 150000002734 metacrylic acid derivatives Chemical class 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims 1
- 229920000800 acrylic rubber Polymers 0.000 claims 1
- 238000005452 bending Methods 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000011888 foil Substances 0.000 description 12
- 239000004743 Polypropylene Substances 0.000 description 10
- 229920001155 polypropylene Polymers 0.000 description 10
- 229920000728 polyester Polymers 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 6
- 229920005653 propylene-ethylene copolymer Polymers 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 5
- 239000012790 adhesive layer Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 229920001748 polybutylene Polymers 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 229920001400 block copolymer Polymers 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 3
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 3
- 238000012536 packaging technology Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 150000003751 zinc Chemical class 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical class C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- BVIUYHQPSZOHOV-UHFFFAOYSA-N 1,1-dichloroethene;2-methylprop-2-enoic acid Chemical compound ClC(Cl)=C.CC(=C)C(O)=O BVIUYHQPSZOHOV-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920003950 DuPont™ Surlyn® 1857 Polymers 0.000 description 1
- 239000004716 Ethylene/acrylic acid copolymer Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 229920003182 Surlyn® Polymers 0.000 description 1
- 239000005035 Surlyn® Substances 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 235000015173 baked goods and baking mixes Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000019688 fish Nutrition 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
- B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/42—Heating or cooling
- B29C51/428—Heating or cooling of moulds or mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/002—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers in shrink films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1658—Cooling using gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0049—Heat shrinkable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1328—Shrinkable or shrunk [e.g., due to heat, solvent, volatile agent, restraint removal, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31913—Monoolefin polymer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31913—Monoolefin polymer
- Y10T428/3192—Next to vinyl or vinylidene chloride polymer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31928—Ester, halide or nitrile of addition polymer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31935—Ester, halide or nitrile of addition polymer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31938—Polymer of monoethylenically unsaturated hydrocarbon
Definitions
- the invention relates to multilayer films which are thermoformable and at the same time heat shrinkable even at high overall thicknesses, wherein the heat shrinkability is practically unaffected by the thermoforming, as well as packaging wells made therefrom and corresponding packaging produced on an adapted packaging machine.
- thermoformable, preferably thermoformable, sealable, heat-shrinkable multilayer film having an identical layer structure symmetrically arranged on each of the two surfaces of a two-layer, central inner layer, wherein the heat shrinkability of the multilayer film in the longitudinal and transverse direction of at least 20% in each case. at 93 0 C is not affected by a thermoforming substantially.
- the invention relates to a thermoformable, preferably deep-drawable, sealable, heat shrinkable multilayer film having a central, two-ply inner layer (I) based on at least thermoplastic polymer having a Vicat softening point of less than or equal to 65 0 C as determined by ASTM D 1525-ISO 306 comprising on each of its two surfaces with an identical layer structure
- a suitable adhesion promoter layer H 2 , preferably based on at least one polymer having a melt flow index MFI in the range of 0.1 to 2.0 g / 10 min determined according to DIN ISO 1133 at 190 0 C and 2.16 kg and
- the layer thickness of the sealing layers (S) is in each case preferably at most 25% of the total layer thickness of the multilayer film according to the invention.
- Each seal layer (S) preferably has a layer thickness in the range from 5 to 25 ⁇ m, particularly preferably 7.5 to 20 ⁇ m.
- the film web according to the invention is cooled during deep drawing, thereby producing a sealable, deep-drawn, shrinkable packaging tray from a film web.
- the film web is clamped before deep drawing.
- the film web is heated prior to deep drawing.
- the heating and cooling takes place offset in time, wherein the heating preferably takes place before cooling.
- the film web is partially heated before and cooled during deep drawing. Deep drawing can be done in any manner known to those skilled in the art.
- the deep-drawing takes place by overpressure and / or underpressure (vacuum).
- FIG. 1 shows the thermoforming device which has a deep-drawing tool 3 with a plurality of deep-drawing chambers 10. According to the invention, this thermoforming tool is cooled, wherein the cooling in the present case takes place through bore 2, through which a cooling medium is passed. Above the thermoforming tool 3 is to be deformed, inventive, shrinkable film web 1, which is clamped between the thermoforming tool 3 and a clamping frame 4. The clamping frame 4 is in the present case by means of the bore 5, through which a coolant is guided, also coolable. Above the film web 1 are heating plates 7, which, as shown by the double arrows 6, can be raised or lowered. The skilled person knows that the thermoforming tool 3 is also vertically movable.
- the sealed, heat-shrinkable packaging according to the invention thus obtained is finally shrunk as set out above, so that both the thermoformed packaging tray and optionally the cover sheet contract and fit tightly against the packaged product.
- the shrinking process is initiated by heat, for example in a thermal chamber.
- the invention also relates to a heat-shrunk package obtainable by the above-described shrinkage of the sealed heat-shrinkable package.
- the displaced by the shrinking process atmosphere can escape, for example, through a small opening in the package, the opening is finally closed.
- the package may be evacuated during or after sealing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610040526 DE102006040526A1 (de) | 2006-08-30 | 2006-08-30 | Thermoformbares Verpackungsmaterial mit Schrumpfeigenschaften |
PCT/EP2007/007521 WO2008025518A2 (de) | 2006-08-30 | 2007-08-28 | Thermoformbares verpackungsmaterial mit schrumpfeigenschaften |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2061652A2 true EP2061652A2 (de) | 2009-05-27 |
Family
ID=38573345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07801943A Withdrawn EP2061652A2 (de) | 2006-08-30 | 2007-08-28 | Thermoformbares verpackungsmaterial mit schrumpfeigenschaften |
Country Status (10)
Country | Link |
---|---|
US (1) | US8424273B2 (de) |
EP (1) | EP2061652A2 (de) |
BR (1) | BRPI0716140A8 (de) |
CA (1) | CA2659764C (de) |
DE (1) | DE102006040526A1 (de) |
MX (1) | MX2009001376A (de) |
NO (1) | NO20090815L (de) |
RU (1) | RU2445214C2 (de) |
UA (1) | UA95971C2 (de) |
WO (1) | WO2008025518A2 (de) |
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DE102010033472A1 (de) * | 2010-08-05 | 2012-03-29 | Wipak Walsrode Gmbh & Co. Kg | Mehrschichtsfolie mit Antifog-Wirkung |
WO2012076481A1 (en) * | 2010-12-09 | 2012-06-14 | Cryovac, Inc. | Multilayer heat-shrinkable film and containers made therefrom |
DE102012204511A1 (de) | 2012-03-21 | 2013-09-26 | Robert Bosch Gmbh | Thermoformeinrichtung |
US11292234B2 (en) | 2012-09-13 | 2022-04-05 | Dow Global Technologies Llc | Polyolefin based films suitable for thermoforming |
DE102012108705B4 (de) * | 2012-09-17 | 2020-01-09 | Mondi Ag | Kunststofffolie |
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2006
- 2006-08-30 DE DE200610040526 patent/DE102006040526A1/de not_active Withdrawn
-
2007
- 2007-08-28 BR BRPI0716140A patent/BRPI0716140A8/pt not_active Application Discontinuation
- 2007-08-28 CA CA 2659764 patent/CA2659764C/en active Active
- 2007-08-28 EP EP07801943A patent/EP2061652A2/de not_active Withdrawn
- 2007-08-28 UA UAA200902802A patent/UA95971C2/ru unknown
- 2007-08-28 WO PCT/EP2007/007521 patent/WO2008025518A2/de active Application Filing
- 2007-08-28 MX MX2009001376A patent/MX2009001376A/es active IP Right Grant
- 2007-08-28 US US12/375,258 patent/US8424273B2/en active Active
- 2007-08-28 RU RU2009111385/05A patent/RU2445214C2/ru active
-
2009
- 2009-02-23 NO NO20090815A patent/NO20090815L/no not_active Application Discontinuation
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Also Published As
Publication number | Publication date |
---|---|
UA95971C2 (ru) | 2011-09-26 |
WO2008025518A2 (de) | 2008-03-06 |
CA2659764C (en) | 2015-01-27 |
RU2009111385A (ru) | 2010-10-10 |
CA2659764A1 (en) | 2008-03-06 |
RU2445214C2 (ru) | 2012-03-20 |
NO20090815L (no) | 2009-02-23 |
BRPI0716140A8 (pt) | 2017-12-19 |
US20090301035A1 (en) | 2009-12-10 |
MX2009001376A (es) | 2009-08-20 |
WO2008025518A3 (de) | 2008-07-31 |
DE102006040526A1 (de) | 2008-03-06 |
US8424273B2 (en) | 2013-04-23 |
BRPI0716140A2 (pt) | 2013-09-17 |
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