EP3867061A1 - Thermoformbare verbundfolie mit metallischem erscheinungsbild - Google Patents
Thermoformbare verbundfolie mit metallischem erscheinungsbildInfo
- Publication number
- EP3867061A1 EP3867061A1 EP19795463.9A EP19795463A EP3867061A1 EP 3867061 A1 EP3867061 A1 EP 3867061A1 EP 19795463 A EP19795463 A EP 19795463A EP 3867061 A1 EP3867061 A1 EP 3867061A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- composite film
- layers
- polymeric material
- weight
- 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- Withdrawn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
- 239000002131 composite material Substances 0.000 title claims abstract description 77
- 239000000463 material Substances 0.000 claims description 51
- 238000000576 coating method Methods 0.000 claims description 25
- 239000011248 coating agent Substances 0.000 claims description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 2
- 238000005240 physical vapour deposition Methods 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 claims description 2
- 239000010408 film Substances 0.000 description 197
- 239000010410 layer Substances 0.000 description 49
- 239000000654 additive Substances 0.000 description 22
- -1 polypropylene Polymers 0.000 description 21
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 20
- 229920000642 polymer Polymers 0.000 description 20
- 239000010936 titanium Substances 0.000 description 19
- 239000004698 Polyethylene Substances 0.000 description 17
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 17
- 239000004743 Polypropylene Substances 0.000 description 16
- 229920001155 polypropylene Polymers 0.000 description 16
- 238000002834 transmittance Methods 0.000 description 16
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- 229920000573 polyethylene Polymers 0.000 description 15
- 239000011888 foil Substances 0.000 description 14
- 229920001634 Copolyester Polymers 0.000 description 12
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 12
- 238000002425 crystallisation Methods 0.000 description 12
- 230000008025 crystallization Effects 0.000 description 12
- 239000002245 particle Substances 0.000 description 12
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- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
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- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000002318 adhesion promoter Substances 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
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- 239000004700 high-density polyethylene Substances 0.000 description 3
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- 229920004439 Aclar® Polymers 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 2
- 150000001925 cycloalkenes Chemical class 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 229920006280 packaging film Polymers 0.000 description 2
- 239000012785 packaging film Substances 0.000 description 2
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- 239000000047 product Substances 0.000 description 2
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- 239000002344 surface layer Substances 0.000 description 2
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- 239000004416 thermosoftening plastic Substances 0.000 description 2
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 1
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical group FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- PXGZQGDTEZPERC-UHFFFAOYSA-N 1,4-cyclohexanedicarboxylic acid Chemical compound OC(=O)C1CCC(C(O)=O)CC1 PXGZQGDTEZPERC-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- BMWJNCVLMJQEJG-UHFFFAOYSA-N C(C(=C)C)(=O)O.C(CCC)C=CC1=CC=CC=C1 Chemical compound C(C(=C)C)(=O)O.C(CCC)C=CC1=CC=CC=C1 BMWJNCVLMJQEJG-UHFFFAOYSA-N 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 229920006448 PE-UHMW Polymers 0.000 description 1
- 239000012963 UV stabilizer Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical group OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- WWNGFHNQODFIEX-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate;styrene Chemical compound C=CC=C.COC(=O)C(C)=C.C=CC1=CC=CC=C1 WWNGFHNQODFIEX-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000007707 calorimetry Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000015872 dietary supplement Nutrition 0.000 description 1
- 238000001938 differential scanning calorimetry curve Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000003827 glycol group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- 230000010494 opalescence Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000004439 roughness measurement Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000003017 thermal stabilizer Substances 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 210000003934 vacuole Anatomy 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
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Definitions
- the present invention relates to a two-layer or multilayer thermoformable composite film with a metallic appearance.
- WO 2017/066779 A1 describes a multi-layer metal-like film with one or more metallized layers, primers, coatings and sealing layers.
- the metal-like film can be equipped with an outer coating containing metal pigments and have a matt to glossy appearance.
- GB 2 150 881 A discloses a decorative packaging film having a base layer made of a synthetic polymer containing a highly light-absorbing pigment and one or more surface layers made of a second synthetic transparent polymer which are solid particles made of a material such as calcium carbonate with a particle size of 0.1 to 10 mhi and contained in an amount of 1 to 40 wt .-%.
- the packaging film is stretched, vacuoles being formed in the surface layers around the solid particles. The look of the film varies from intense opalescence to a shiny metallic look.
- US 5,496,630 A relates to a multilayered thermoplastic extrudate with polished
- the metal look is created by aluminum powder with a particle size of ⁇ 50 mhi in combination with pearlescent pigment.
- the multilayer extrudate comprises a decorative layer and an opaque or transparent base layer.
- the decorative layer contains in particular 100 parts by weight of polyvinyl chloride as a thermoplastic matrix, 0.05 to about 4 parts by weight of aluminum powder and 0.1 to 5 parts by weight of one with titanium dioxide
- coated mica pigments and optionally organic or inorganic
- the present invention has for its object to provide a thermoformable composite film, the visual appearance of which is similar to a composite film comprising a metallic film.
- a composite foil is to be provided which visually resembles a composite foil containing an aluminum foil. This object is achieved by a two-layer or multilayer thermoformable composite film, comprising
- - a second film made of a second polymeric material with CIE color values F 2 *, a 2 *, b 2 * with 60 ⁇ F 2 * ⁇ 90, -3 ⁇ a 2 * ⁇ 3, -3 ⁇ b 2 * ⁇ 3 ; wherein - the first film is arranged between the second film and the first surface and the metallic coating of the first film is visible from the side of the first surface; and
- the first surface has a gloss value Gi with 50 ⁇ Gi ⁇ 600.
- the first film has a gloss value equal to Gi;
- the first surface of the composite film has a CIE brightness with gloss component Li * and a CIE brightness without gloss component has with
- the first surface of the composite film has a CIE brightness without a gloss component
- the first surface of the composite film has a CIE brightness without a gloss component
- the first film has CIE color values equal to Li *, ai *, bi *;
- the first film has a CIE brightness with a gloss component equal to Li * and a CIE
- Brightness without gloss component is L- L with 0.65 -Li * ⁇ ⁇ 0.9-Li *;
- the first film has a CIE brightness with a gloss component equal to Li * and a CIE
- Brightness without gloss component is L- L with 0.65 -Li * ⁇ ⁇ 0.75 -Li *, the first film has a CIE brightness with a gloss component equal to Li * and a CIE
- Brightness without gloss component is the same with 0.65-Fi * ⁇ ⁇ 0.69-Li *,
- the first film is equipped with a CVD, PVD or sputter coating made of a metal or a metal alloy;
- the first film is equipped with a metallic coating with a thickness of 10 to 100 nm;
- the first film with a metallic coating with a thickness of 10 to 30 nm, 20 to 40 nm, 30 to 50 nm, 40 to 60 nm, 50 to 70 nm, 60 to 80 nm, 70 to 90 nm or 80 to 100 nm is equipped;
- the first film is equipped with an aluminum coating;
- the first film is coated with aluminum;
- the first film has a spruce transmittance Ti with 0% ⁇ Ti ⁇ 5%;
- the first film has a spruce transmittance Ti with 0% ⁇ Ti ⁇ 3%
- the first film has a spruce transmittance Ti with 0% ⁇ Ti ⁇ 0.8%, 0.4% ⁇ Ti ⁇ 1.2%, 0.8% ⁇ Ti ⁇ 1.6%, 1.2% ⁇ Ti ⁇ 2%, 1.6% ⁇ Ti ⁇ 2.4%
- the metallic coated surface of the first film has an arithmetic center
- the metallic coated surface of the first film has an arithmetic center
- the metallically coated surface of the first film has an arithmetic mean roughness Ra with 50 nm ⁇ Ra ⁇ 70 nm, 60 nm ⁇ Ra ⁇ 80 nm,
- the first film based on its total volume, contains 0.005 to 0.03% by volume of titanium dioxide particles with an average equivalent diameter of 0.2 to 0.35 m2; - The first film, based on its total volume 0.005 to 0.009% by volume, 0.007 to
- 0.023% by volume 0.021 to 0.025% by volume, 0.023 to 0.027% by volume or 0.025 to 0.03% by volume contains titanium dioxide particles with an average equivalent diameter of 0.2 to 0.35 m2;
- the first film based on its total volume contains 0.02 to 2 vol% bubbles with an average diameter of 0.1 to 2 square meters;
- the first film consists of a polymeric carrier film and a metallic coating; -
- the polymeric carrier film of the first film has a light transmittance T, with
- the polymeric carrier film of the first film has a haze with
- the composite film comprises a third film which is arranged between the first film and the first surface and has a light transmittance equal to T- and a haze equal to ff;
- Facing composite film wherein the first and second surfaces of the composite film are arranged opposite one another; - the second polymeric material, based on its total weight, 1 to 8% by weight
- the second polymeric material contains pearlescent pigment
- the second polymeric material contains pigment particles made with titanium dioxide
- the second polymeric material contains pigment particles made of mica with a 50 to
- 70 nm thick coating consist of titanium dioxide
- the second film has a light transmittance T 2 with 0% ⁇ T 2 ⁇ 20%;
- the composite film has a thickness of 30 to 2000 gm
- the composite film has a thickness of 30 to 600 gm, 300 to 900 gm, 600 to 1200 gm,
- the composite film has a thickness of 30 to 200 gm, 100 to 300 gm, 200 to 400 gm,
- the composite film has a thickness of 30 to 70 mih, 50 to 90 mih, 70 to 110 mih,
- the composite film has a length of 1 to 10000 m;
- the composite film has a length of 1 to 60 m, 30 to 90 m, 60 to 120 m, 90 to 150 m,
- the composite film has a length of 1 to 1000 m, 500 to 1500 m, 1000 to 2000 m,
- the composite film has a width of 5 cm to 8 m;
- the composite film has a width of 5 cm to 2 m, 1 to 3 m, 2 to 4 m, 3 to 5 m, 4 to 6 m,
- the composite film has a width of 5 to 20 cm, 10 to 30 cm, 20 to 40 cm, 30 to 50 cm,
- the first film has a thickness of 10 to 100 gm
- the first film has a thickness of 10 to 60 gm or 50 to 100 gm;
- the first film has a thickness of 10 to 20 gm, 15 to 25 gm, 20 to 30 gm, 25 to 35 gm,
- the second film has a thickness of 30 to 1000 gm; the second film has a thickness of 30 to 600 mih or 500 to 1000 mih; the second film has a thickness of 30 to 200 mih, 100 to 300 mih, 200 to 400 mih,
- the first polymeric material based on its total weight, from 60 to 99 wt .-% of one or more polymers selected from the group comprising vinyl chloride polymer
- VCP polypropylene
- PP polypropylene
- COC cycloolefin copolymer
- the first polymeric material based on its total weight, consists of 60 to 99 wt .-% polypropylene (PP) and 1 to 40 wt .-% of one or more additives;
- the second polymeric material based on its total weight, from 60 to 99 wt .-% of one or more polymers, selected from the group comprising vinyl chloride polymer (VCP), polypropylene (PP), polyester and cycloolefin copolymer (COC) and 1 to 40% by weight of one or more additives;
- the second polymeric material based on its total weight, consists of 60 to 99 wt .-% vinyl chloride polymer (VCP) and 1 to 40 wt .-% of one or more additives;
- the second polymeric material based on its total weight, from 60 to 99 wt .-%
- the third film has a thickness of 10 to 100 mhi;
- the third film has a thickness of 10 to 60 pm or 50 to 100 mhi; the third film has a thickness of 10 to 20 pm, 15 to 25 pm, 20 to 30 pm, 25 to 35 pm,
- the third film is made of a polymeric material based on
- Total weight from 60 to 99% by weight of one or more polymers, selected from the group comprising vinyl chloride polymer (VCP), polypropylene (PP), polyester and cycloolefin copolymer (COC) and 1 to 40% by weight of one or more additives consists; -
- the third film based on their total volume contains 0.005 to 0.03% by volume of titanium dioxide particles with an average equivalent diameter of 0.2 to 0.35 square meters;
- the third film based on its total volume 0.005 to 0.009% by volume, 0.007 to
- the composite film comprises one or more layers, each 10 to 120 square meters thick, made of a third polymeric material which, based on its total weight, consists of 60 to 99% by weight of polyvinylidene chloride (PVdC) and 1 to 40% by weight of one or more additives ;
- PVdC polyvinylidene chloride
- the composite film one or more adjacent layers from a third
- polymeric material comprises polymeric material, based on its total weight from 60 to 99 wt .-%
- PVdC Polyvinylidene chloride
- 1 to 40 wt .-% of one or more additives, and the one or more adjacent layers have a total basis weight of 10 to 360 gm 2 ;
- the composite film one or more adjacent layers from a third
- polymeric material comprises polymeric material, based on its total weight from 60 to 99 wt .-%
- PVdC Polyvinylidene chloride
- 1 to 40 wt .-% of one or more additives and the one or more adjacent layers in total a basis weight of 10 to 50 gm 2 , 40 to 80 gm 2 , 60 to 100 gm 2 , 80 up to 120 gm 2 , 100 to
- the one or more layers of the third polymeric material a light
- the composite film comprises one or more layers, each 15 to 160 mih thick, made of a fourth polymeric material which, based on its total weight, consists of 60 to 99% by weight of polychlorotrifluoroethylene (PCTFE) and 1 to 40% by weight of one or more additives ; - The one or more layers of the fourth polymeric material a light
- the composite film comprises one or more layers, each 1 to 50 pm thick, made of a fifth polymeric material which, based on its total weight, consists of 60 to 99% by weight of ethylene-vinyl alcohol copolymer (EVOH) and 1 to 40% by weight of one or more additives;
- EVOH ethylene-vinyl alcohol copolymer
- the one or more layers of the fifth polymeric material a light
- the composite film one or more layers each from 15 to 400 pm thick from one
- cycloolefin copolymer comprises sixth polymeric material, based on its total weight of 60 to 99 wt .-% cycloolefin copolymer (COC) and 1 to 40 wt .-% of one or more
- the one or more layers of the sixth polymeric material a light
- the composite film comprises one or more layers, each 20 to 600 pm thick, made of a seventh polymeric material, which, based on its total weight, consists of 60 to 99% by weight.
- the one or more layers of the seventh polymeric material a light
- the composite film comprises one or more layers, each 20 to 600 pm thick, made of an eighth polymeric material, which, based on its total weight, consists of 60 to 99% by weight.
- the composite film comprises one or more layers, each 20 to 1200 ml thick, made of a ninth polymeric material which, based on its total weight, consists of 60 to 99% by weight of polyester and 1 to 40% by weight of one or more additives;
- the one or more layers of the ninth polymeric material have a light transmittance of 75% to 94%;
- the composite film comprises one or more layers, each 15 to 60 mhi thick, made of a tenth polymeric material which, based on its total weight, consists of 60 to 99% by weight of polyethylene (PE) and 1 to 40% by weight of one or more additives ;
- PE polyethylene
- the one or more layers of the tenth polymeric material have a light transmittance of 75% to 94%;
- the composite film comprises one or more layers, each 15 to 400 pm thick, made of an eleventh polymeric material which, based on its total weight, consists of 60 to 99% by weight of cycloolefin polymer (COP) and 1 to 40% by weight of one or more Additives exist;
- COP cycloolefin polymer
- the one or more layers of the eleventh polymeric material have a light transmittance of 70% to 94%;
- the composite film is a co-extruded film with five layers with the sequence
- PE / adhesive layer / EVOH / adhesive layer / PE each consisting of a polymeric material with a weight fraction of 60 to 99% by weight of polyethylene (PE), 60 to 99% by weight of ethylene-vinyl alcohol copolymer (EVOH) and 60 to 99 wt .-% polyethylene (PE), based on the total weight of the respective layer exist;
- the composite film comprises one, two, three, four, five, six, seven, eight or nine further films made of polymeric materials;
- the composite film comprises one, two, three, four, five, six, seven, eight or nine layers of polymeric materials;
- the composite film comprises one, two, three, four, five, six, seven, eight or nine films and / or layers of polymeric materials;
- the composite film comprises one, two, three, four, five, six, seven, eight or nine layers of polymeric materials;
- the composite film comprises one, two, three, four, five, six, seven, eight or nine films and / or layers of polymeric materials;
- the composite film comprises an adhesive layer; and or
- the composite film two, three, four, five, six, seven, eight or nine adhesive layers
- the invention relates to articles such as trays, cups and blister packs which are made from one of the films described above by thermoforming.
- the first and second films of the composite film according to the invention are decisive for the visual appearance of a thermoformed packaging, such as a blister pack for pharmaceuticals or food supplements in tablet and coated tablet form.
- thermoforming a single or multi-layer polymer film is heated to a temperature in the range of 90 to 150 ° C and pressed or drawn pneumatically or by means of vacuum into a mold made of a metallic material.
- certain areas of the film are stretched by a factor of up to 6. If the film has a metallic coating, it will be damaged in the stretched areas. Often a stripe pattern is created from alternating metallic and uncoated polymer. In the stretched or "damaged" areas, the metallic coating is partially transparent.
- the first, metal-coated film of the composite film according to the invention faces a visible side of a thermoformed packaging.
- the second film of the composite film according to the invention is arranged on an inside of the thermoformed packaging which is visually covered by the first film.
- the first film gives the composite film according to the invention its primary metallic appearance.
- the second film is used to visually conceal cracks and other defects that are formed in the metallic coating of the first film during thermoforming.
- the inventors have surprisingly found that by modifying the first film or the polymeric carrier film used for the metallic coating of the first film, the visual appearance of a metal film, such as, for example, an aluminum film, can be reproduced almost lifelike. In the course of extensive experiments, the inventors have various methods for
- the first film or the polymeric carrier film of the first film used for the metallic coating is produced using a conventional extrusion system with a slot die, Chillro 11 and two or more take-off rolls.
- a ceramic-coated, chemically etched, sandblasted or electro-erosion-treated chillro 11 is used in the extrusion.
- the nano- or submicroscale surface texture of the first film increases the amount of diffuse reflection in the metallic coating.
- the resulting optical matting can be seen on both sides of the metallic coating.
- the first film is optionally arranged in the composite film in such a way that the metallic coating of the first film faces or faces away from the first surface or the outside or the viewer.
- the polymeric carrier film of the first film is optically clouded.
- the polymeric carrier film of the first film is produced from a polymeric material with a particulate or bubble-forming additive. Titanium dioxide is particularly suitable as a particulate additive because of its high refractive index of 2.7.
- microscale glass beads or microscale polymer beads are used.
- a Chillro 11 heated to 50 to 80 ° C. is used, which promotes the growth of crystalline spherulite.
- the first film is arranged in the composite film according to the invention such that the optically cloudy polymer
- a three-layer composite film with the structure or layer sequence was used by lamination
- PCTFE 51 gm thick PCTFE film
- the PCTFE film forming the first surface of the composite film and the aluminum-coated side of the first film facing the second film.
- Table 1 below shows the evaluation of the above composite film according to the invention and a conventional metallized comparison film by a test panel comprising twelve people.
- the composite film comprises, in addition to the first and second films, further layers or films made of polymeric materials with special properties, such as a high barrier to water vapor or oxygen, modulus of elasticity or optical transparency.
- the other optional layers or foils consist of polymeric materials based on polyvinylidene chloride (PVdC), polychlorotrifluoroethylene (PCTFE), ethylene-vinyl alcohol copolymer (EVOH), cycloolefin copolymer (COC), cycloolefin polymer (COP), polyester, Vinyl chloride polymer (VCP), polypropylene (PP) and polyethylene (PE).
- Each of the optional further layers or foils is arranged independently of one another with respect to the first surface of the composite foil according to the invention before the first foil, between the first and second foils or after the second foil.
- a film made of a material based on PCTFE is arranged in front of the first film and forms the first surface of the composite film according to the invention.
- this arrangement corresponds to the sequence PCTFE / F1 / F2, where F1 denotes the first film and F2 the second film.
- a film made of a material based on PVdC is arranged after the second film F2 and forms the second surface of the composite film according to the invention.
- this arrangement corresponds to the sequence Fl / F2 / PVdC, with Fl forming the first surface of the composite film.
- a film made of a PE-based material is arranged between the first and second films. With respect to the first surface of the composite film, this arrangement corresponds to the sequence F1 / PE / F2, with Fl forming the first surface of the composite film.
- the composite film according to the invention comprises one or more layers, layers and / or films which, based on the first surface of the composite film, in the sequence PCTFE / F1 / F2, PVC / Aclar / Fl / F2, PVC / PCTFE / F 1 / F2, PVC / EVOH-PE / Aclar / Fl / F2,
- the first film preferably comprises a polymeric carrier film, which consists of a material based on polypropylene (PP).
- the second film preferably consists of a material based on polyvinyl chloride (PVC).
- PVC polyvinyl chloride
- film denotes individual pieces of a film with dimensions of 0.1 to 1 m and industrially produced film webs with lengths of several hundred to several thousand meters.
- machine direction or “longitudinal direction” denotes the transport or winding direction of the extruders, calenders, laminating or used for the production of the composite film and the films contained therein
- transverse direction denotes a direction perpendicular to the machine direction.
- polymeric material denotes a polymeric material which comprises one or more polymers and one or more additives and which, when plasticized in an extruder or in a kneading unit, is a
- Forms a substantially homogeneous mixture or homogeneous phase or, in the case of polyvinylidene chloride, can be applied to a substrate in the form of an aqueous dispersion coating.
- additives denotes substances, such as processing aids, thermal stabilizers, lubricants, waxes, fats, paraffins, epoxidized soybean oil, polymeric modifiers, polymers based on acrylate, butyl methacrylate, methacrylate-butyl styrene, Methyl methacrylate butadiene styrene, chlorinated polyethylene, foaming agents, matting agents, inorganic fillers, fungicides, UV stabilizers, fire retardants and fragrances.
- processing aids such as processing aids, thermal stabilizers, lubricants, waxes, fats, paraffins, epoxidized soybean oil, polymeric modifiers, polymers based on acrylate, butyl methacrylate, methacrylate-butyl styrene, Methyl methacrylate butadiene styrene, chlorinated polyethylene, foaming agents, matting agents, inorganic fillers, fungicide
- PCTFE polychlorotrifluoroethylene
- PE polyethylene
- polypropylene denotes homopolymers made from propene units, copolymers made from propene and ethene units, and mixtures of the above homo- and copolymers.
- COC cycloolefin copolymer
- cycloolefin polymer denotes polymers made from cycloolefins, such as norbomene, with alk-l-enes, such as ethene, and mixtures with other poly-alkenes such as HDPE.
- ethylene-vinyl alcohol copolymer refers to copolymers of the monomers ethene and vinyl alcohol.
- PVdC polyvinylidene chloride
- VCP vinyl chloride polymer
- PVC polyvinyl chlorides
- Vinyl chloride copolymers which are formed by copolymerization of vinyl chloride with one or more comonomers, such as ethylene, propylene or vinyl acetate; and - Mixtures of the above homopolymers and copolymers.
- polyethylene terephthalate refers to semi-crystalline or amorphous homo- or copolyesters.
- Glycol-modified polyethylene terephthalate (PETG) or acid-modified polyethylene terephthalate is preferably used as the semi-crystalline or amorphous polyester.
- glycol units in the amorphous glycol-modified polyethylene terephthalate (PETG) are replaced by 1,4-cyclohexanedimethanol units.
- PET amorphous glycol-modified polyethylene terephthalate
- 1,4-cyclohexanedimethanol-modified polyethylene terephthalate is commercially available from Eastman Chemical Company (Tennessee, USA) under the product name Eastar Copolyester 6763.
- a semicrystalline or amorphous polyester with a crystallization half-life of at least 5 minutes is described, for example, in the patent EP 1 066 339 B1 from the Eastman Chemical Company.
- This copolyester is made up of (i) residual diacid components and (ii) residual diol components.
- (i) comprise at least 80 mol% of a diacid residue component selected from terephthalic acid, naphthalenedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, isophthalic acid and
- the residual diol components (ii) comprise 80 to 100 mol% of a diol residual component selected from diols having 2 to 10 carbon atoms and mixtures thereof and 0 to 20 mol% of a modifying diol selected from 1,3-propanediol, 1,4-butanediol , l, 5-pentanediol, l, 6-hexanediol, l, 8-octanediol, 2,2,4-trimethyl-l, 3-pentanediol, propylene glycol, 2,2,4,4-tetramethyl-l, 3-cyclobutanediol , based on all in the
- Amorphous or semi-crystalline copolyesters with a crystallization half-life of at least 5 minutes are well suited for conventional calendering processes.
- a polymeric material that contains a substantial proportion - usually more than 50% by weight - of semi-crystalline or amorphous copolyester with a crystallization half-life of at least 5 minutes homogeneous and practically defect-free films can be produced by calendering.
- Amorphous or semi-crystalline polyesters with a crystallization half-life of at least 5 minutes are available from Eastman Chemical Company, among others, under the
- DSC Dynamic differential calorimetry
- the crystallization half-life is determined by heating 15 mg of the copolyester to be measured to 290 ° C., then cooling in the presence of helium at a rate of 320 ° C.
- the crystallization half-life is determined on the basis of the time-dependent course of the crystallization.
- the crystallization half-life corresponds to the time required at the specified temperature of 180 to 210 ° C after the initial phase of crystallization in order to obtain 50% of the maximum achievable crystallinity in the sample.
- two or more layers or films are independent of one another by the same or different
- Adhesion promoter linked together Polyurethanes or acrylates which contain hydrolysis groups, with or without crosslinking with polyisocyanates, are preferably used as adhesion promoters. In some manufacturing processes such as coextrusion, in some cases, it is possible to make layers of different polymers directly, i.e. H. without
- the density of foils is according to DIN EN ISO 1183: 2005 and the thickness according to
- the CIE brightness Li without specular component excluded (SCE) is determined in an analogous manner.
- the gloss value of foils is determined according to DIN EN ISO 2813: 2015-02 at a measuring angle of 20 °.
- the degree of transmittance of foils is measured in accordance with DIN EN ISO 13468-2: 2006-07 using a two-beam spectrophotometer with a D65 spotting source.
- the haze of films is determined according to DIN EN ISO 13468-1: 1997-01 or
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018125540.3A DE102018125540B4 (de) | 2018-10-15 | 2018-10-15 | Thermoformbare Verbundfolie mit metallischem Erscheinungsbild |
PCT/EP2019/077643 WO2020078858A1 (de) | 2018-10-15 | 2019-10-11 | Thermoformbare verbundfolie mit metallischem erscheinungsbild |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3867061A1 true EP3867061A1 (de) | 2021-08-25 |
Family
ID=68392936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19795463.9A Withdrawn EP3867061A1 (de) | 2018-10-15 | 2019-10-11 | Thermoformbare verbundfolie mit metallischem erscheinungsbild |
Country Status (7)
Country | Link |
---|---|
US (1) | US20210323290A1 (de) |
EP (1) | EP3867061A1 (de) |
CN (1) | CN112739534A (de) |
AR (1) | AR116699A1 (de) |
BR (1) | BR112021003059A2 (de) |
DE (1) | DE102018125540B4 (de) |
WO (1) | WO2020078858A1 (de) |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2150881A (en) | 1983-11-23 | 1985-07-10 | Bcl Ltd | Decorative packaging films |
US5496630A (en) | 1993-09-13 | 1996-03-05 | The Geon Company | Thermoplastic multilayer louver with a polished metal look |
US6068910A (en) | 1998-03-17 | 2000-05-30 | Eastman Chemical Company | Polyester resin compositions for calendering |
DE19832500A1 (de) * | 1998-07-20 | 2000-01-27 | Ticona Gmbh | Thermoformbare Verbundfolie |
ES2207446T3 (es) * | 2000-04-12 | 2004-06-01 | Loparex Inc. | Sustratos estructurados y recubiertos de poliolefina y procedimiento para su preparacion. |
ES2244615T5 (es) * | 2000-04-14 | 2012-06-15 | E.I. Du Pont De Nemours And Company | Superficie decorativa ionomérica coextrusionada multicapa |
US6569517B1 (en) * | 2000-11-17 | 2003-05-27 | 3M Innovative Properties Company | Color tailorable pigmented optical bodies with surface metalization |
JP4195236B2 (ja) * | 2002-03-26 | 2008-12-10 | 日本ウェーブロック株式会社 | 金属調成形物成形用金属調加飾シート及びその製造方法、並びに、金属調成形物成形用金属調加飾シート中間材 |
US7588829B2 (en) * | 2002-05-31 | 2009-09-15 | Ppg Industries Ohio, Inc. | Article having an aesthetic coating |
JP4198970B2 (ja) * | 2002-11-08 | 2008-12-17 | スリーエム イノベイティブ プロパティズ カンパニー | メタリックフィルム及びイメージ表示体 |
US20050058782A1 (en) * | 2003-09-11 | 2005-03-17 | Ou-Yang David T. | Decorative article and methods of making the same |
US7371275B2 (en) * | 2004-07-02 | 2008-05-13 | E.I. Du Pont De Nemours And Company | Titanium dioxide pigment and polymer compositions |
EP1666927A1 (de) * | 2004-12-03 | 2006-06-07 | Nanogate Advanced Materials GmbH | Sonnenschutzfolie |
JP2008137343A (ja) * | 2006-12-05 | 2008-06-19 | Fp Corp | 金属光沢フィルム、熱成形用シートおよび包装用容器 |
FR2933706B1 (fr) * | 2008-07-10 | 2010-08-27 | Arkema France | Composition pulverulente pour la fabrication d'objets ayant un aspect metallique stable au cours du temps et une resistance au crayonnage amelioree |
MX2011004277A (es) * | 2008-10-20 | 2011-05-25 | Basf Corp | Material de techado con apariencia metálica. |
CN104837645A (zh) * | 2012-10-12 | 2015-08-12 | 高压制图公司 | 柔性可热封装饰性制品及其制造方法 |
JP6441937B2 (ja) * | 2013-12-17 | 2018-12-19 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニーE.I.Du Pont De Nemours And Company | 多層フィルム |
US10603880B2 (en) * | 2014-08-27 | 2020-03-31 | Toyo Seikan Co., Ltd. | Multi-layer direct blow bottle and production process therefor |
DE102015008554A1 (de) * | 2015-07-07 | 2017-01-12 | Klöckner Pentaplast Gmbh | Mehrschichtige Polymerfolie und daraus hergestelltes Multipack |
WO2017066779A1 (en) | 2015-10-16 | 2017-04-20 | Jindal Films Americas Llc | Metal coatings and co-extrusions |
-
2018
- 2018-10-15 DE DE102018125540.3A patent/DE102018125540B4/de not_active Expired - Fee Related
-
2019
- 2019-10-11 CN CN201980061513.4A patent/CN112739534A/zh active Pending
- 2019-10-11 BR BR112021003059-0A patent/BR112021003059A2/pt not_active Application Discontinuation
- 2019-10-11 EP EP19795463.9A patent/EP3867061A1/de not_active Withdrawn
- 2019-10-11 WO PCT/EP2019/077643 patent/WO2020078858A1/de unknown
- 2019-10-11 US US17/285,165 patent/US20210323290A1/en not_active Abandoned
- 2019-10-15 AR ARP190102920A patent/AR116699A1/es active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
AR116699A1 (es) | 2021-06-02 |
DE102018125540B4 (de) | 2023-03-23 |
DE102018125540A1 (de) | 2020-04-16 |
WO2020078858A1 (de) | 2020-04-23 |
US20210323290A1 (en) | 2021-10-21 |
CN112739534A (zh) | 2021-04-30 |
BR112021003059A2 (pt) | 2021-05-11 |
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