EP4193017A1 - Process for the production of packaging for the preservation of food products consisting of a cellulosic support coated with a polymer resin layer in which anionic clays are dispersed intercalated with active molecules, and packaging thus obtained - Google Patents
Process for the production of packaging for the preservation of food products consisting of a cellulosic support coated with a polymer resin layer in which anionic clays are dispersed intercalated with active molecules, and packaging thus obtainedInfo
- Publication number
- EP4193017A1 EP4193017A1 EP21758326.9A EP21758326A EP4193017A1 EP 4193017 A1 EP4193017 A1 EP 4193017A1 EP 21758326 A EP21758326 A EP 21758326A EP 4193017 A1 EP4193017 A1 EP 4193017A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- resin
- packaging
- weight
- clay
- acrylic
- 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.)
- Pending
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 49
- 235000013305 food Nutrition 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000008569 process Effects 0.000 title claims abstract description 23
- 125000000129 anionic group Chemical group 0.000 title claims abstract description 14
- 238000004321 preservation Methods 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000002952 polymeric resin Substances 0.000 title abstract description 5
- 229920003002 synthetic resin Polymers 0.000 title description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000011111 cardboard Substances 0.000 claims abstract description 25
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011087 paperboard Substances 0.000 claims abstract description 18
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims abstract description 16
- 229910001701 hydrotalcite Inorganic materials 0.000 claims abstract description 16
- 229960001545 hydrotalcite Drugs 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims description 57
- 229920005989 resin Polymers 0.000 claims description 57
- 239000003963 antioxidant agent Substances 0.000 claims description 38
- 239000004927 clay Substances 0.000 claims description 21
- 239000000123 paper Substances 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 16
- 229920000178 Acrylic resin Polymers 0.000 claims description 10
- 239000004925 Acrylic resin Substances 0.000 claims description 10
- 239000000839 emulsion Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 150000001450 anions Chemical class 0.000 claims description 7
- 230000001580 bacterial effect Effects 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 7
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- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- -1 aliphatic isocyanates Chemical class 0.000 claims description 5
- 229940121375 antifungal agent Drugs 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000004599 antimicrobial Substances 0.000 claims description 4
- 125000002091 cationic group Chemical group 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 3
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- 239000012948 isocyanate Substances 0.000 claims description 3
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- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 abstract description 2
- 235000006708 antioxidants Nutrition 0.000 description 36
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- 239000000945 filler Substances 0.000 description 25
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- 239000000463 material Substances 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
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- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 description 5
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- 239000001472 potassium tartrate Substances 0.000 description 5
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 4
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 4
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- 230000004888 barrier function Effects 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Substances OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 4
- 239000004403 ethyl p-hydroxybenzoate Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 description 4
- 235000010292 orthophenyl phenol Nutrition 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000004405 propyl p-hydroxybenzoate Substances 0.000 description 4
- QELSKZZBTMNZEB-UHFFFAOYSA-N propylparaben Chemical compound CCCOC(=O)C1=CC=C(O)C=C1 QELSKZZBTMNZEB-UHFFFAOYSA-N 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000011732 tocopherol Substances 0.000 description 4
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Inorganic materials [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 4
- 229940061334 2-phenylphenol Drugs 0.000 description 3
- 241000220223 Fragaria Species 0.000 description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-N Propionic acid Substances CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 3
- ABBQHOQBGMUPJH-UHFFFAOYSA-M Sodium salicylate Chemical compound [Na+].OC1=CC=CC=C1C([O-])=O ABBQHOQBGMUPJH-UHFFFAOYSA-M 0.000 description 3
- 241000219094 Vitaceae Species 0.000 description 3
- 238000009456 active packaging Methods 0.000 description 3
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- 230000015572 biosynthetic process Effects 0.000 description 3
- 235000019282 butylated hydroxyanisole Nutrition 0.000 description 3
- 235000021466 carotenoid Nutrition 0.000 description 3
- 150000001747 carotenoids Chemical class 0.000 description 3
- 235000015165 citric acid Nutrition 0.000 description 3
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Substances OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 3
- 235000021021 grapes Nutrition 0.000 description 3
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 3
- 239000004312 hexamethylene tetramine Substances 0.000 description 3
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 3
- 235000014655 lactic acid Nutrition 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229960002216 methylparaben Drugs 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 235000010298 natamycin Nutrition 0.000 description 3
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 3
- AVTYONGGKAJVTE-OLXYHTOASA-L potassium L-tartrate Chemical compound [K+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O AVTYONGGKAJVTE-OLXYHTOASA-L 0.000 description 3
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Substances [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 3
- 239000001508 potassium citrate Substances 0.000 description 3
- 235000010289 potassium nitrite Nutrition 0.000 description 3
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- 239000002243 precursor Substances 0.000 description 3
- 235000019260 propionic acid Nutrition 0.000 description 3
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- 238000003756 stirring Methods 0.000 description 3
- 235000021012 strawberries Nutrition 0.000 description 3
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- 239000005695 Ammonium acetate Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 2
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 229920005774 JONCRYL® ECO Polymers 0.000 description 2
- PWKSKIMOESPYIA-BYPYZUCNSA-N L-N-acetyl-Cysteine Chemical compound CC(=O)N[C@@H](CS)C(O)=O PWKSKIMOESPYIA-BYPYZUCNSA-N 0.000 description 2
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 description 2
- UPYKUZBSLRQECL-UKMVMLAPSA-N Lycopene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1C(=C)CCCC1(C)C)C=CC=C(/C)C=CC2C(=C)CCCC2(C)C UPYKUZBSLRQECL-UKMVMLAPSA-N 0.000 description 2
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- ZTHYODDOHIVTJV-UHFFFAOYSA-N Propyl gallate Chemical compound CCCOC(=O)C1=CC(O)=C(O)C(O)=C1 ZTHYODDOHIVTJV-UHFFFAOYSA-N 0.000 description 2
- 239000004280 Sodium formate Substances 0.000 description 2
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- 235000003953 Solanum lycopersicum var cerasiforme Nutrition 0.000 description 2
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- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric Acid Chemical class [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 2
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- 229960003987 melatonin Drugs 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 229960004452 methionine Drugs 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 229960000282 metronidazole Drugs 0.000 description 1
- VAOCPAMSLUNLGC-UHFFFAOYSA-N metronidazole Chemical compound CC1=NC=C([N+]([O-])=O)N1CCO VAOCPAMSLUNLGC-UHFFFAOYSA-N 0.000 description 1
- 235000015861 monopotassium citrate Nutrition 0.000 description 1
- 239000002444 monopotassium citrate Substances 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- HWPKGOGLCKPRLZ-UHFFFAOYSA-M monosodium citrate Chemical compound [Na+].OC(=O)CC(O)(C([O-])=O)CC(O)=O HWPKGOGLCKPRLZ-UHFFFAOYSA-M 0.000 description 1
- 235000018342 monosodium citrate Nutrition 0.000 description 1
- 239000002524 monosodium citrate Substances 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019321 monosodium tartrate Nutrition 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 229960003255 natamycin Drugs 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- NRPKURNSADTHLJ-UHFFFAOYSA-N octyl gallate Chemical compound CCCCCCCCOC(=O)C1=CC(O)=C(O)C(O)=C1 NRPKURNSADTHLJ-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000004306 orthophenyl phenol Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 235000018192 pine bark supplement Nutrition 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 235000007686 potassium Nutrition 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229940017794 potassium ascorbate Drugs 0.000 description 1
- KYKNRZGSIGMXFH-ZVGUSBNCSA-M potassium bitartrate Chemical compound [K+].OC(=O)[C@H](O)[C@@H](O)C([O-])=O KYKNRZGSIGMXFH-ZVGUSBNCSA-M 0.000 description 1
- PHZLMBHDXVLRIX-UHFFFAOYSA-M potassium lactate Chemical compound [K+].CC(O)C([O-])=O PHZLMBHDXVLRIX-UHFFFAOYSA-M 0.000 description 1
- 229960001304 potassium lactate Drugs 0.000 description 1
- BXNHTSHTPBPRFX-UHFFFAOYSA-M potassium nitrite Chemical class [K+].[O-]N=O BXNHTSHTPBPRFX-UHFFFAOYSA-M 0.000 description 1
- BWILYWWHXDGKQA-UHFFFAOYSA-M potassium propanoate Chemical compound [K+].CCC([O-])=O BWILYWWHXDGKQA-UHFFFAOYSA-M 0.000 description 1
- 229940069338 potassium sorbate Drugs 0.000 description 1
- AVTYONGGKAJVTE-UHFFFAOYSA-L potassium tartrate Chemical class [K+].[K+].[O-]C(=O)C(O)C(O)C([O-])=O AVTYONGGKAJVTE-UHFFFAOYSA-L 0.000 description 1
- 229940111695 potassium tartrate Drugs 0.000 description 1
- CONVKSGEGAVTMB-RXSVEWSESA-M potassium-L-ascorbate Chemical compound [K+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] CONVKSGEGAVTMB-RXSVEWSESA-M 0.000 description 1
- WKZJASQVARUVAW-UHFFFAOYSA-M potassium;hydron;2-hydroxypropane-1,2,3-tricarboxylate Chemical compound [K+].OC(=O)CC(O)(C(O)=O)CC([O-])=O WKZJASQVARUVAW-UHFFFAOYSA-M 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- SSOLNOMRVKKSON-UHFFFAOYSA-N proguanil Chemical compound CC(C)\N=C(/N)N=C(N)NC1=CC=C(Cl)C=C1 SSOLNOMRVKKSON-UHFFFAOYSA-N 0.000 description 1
- 150000004672 propanoic acids Chemical class 0.000 description 1
- 229940075579 propyl gallate Drugs 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229960003415 propylparaben Drugs 0.000 description 1
- 229940106796 pycnogenol Drugs 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 235000021283 resveratrol Nutrition 0.000 description 1
- 229940016667 resveratrol Drugs 0.000 description 1
- 238000009517 secondary packaging Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910021647 smectite Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000011091 sodium acetates Nutrition 0.000 description 1
- 229960005055 sodium ascorbate Drugs 0.000 description 1
- 235000017454 sodium diacetate Nutrition 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 239000004402 sodium ethyl p-hydroxybenzoate Substances 0.000 description 1
- 235000010226 sodium ethyl p-hydroxybenzoate Nutrition 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 229940005581 sodium lactate Drugs 0.000 description 1
- 239000004290 sodium methyl p-hydroxybenzoate Substances 0.000 description 1
- 235000010268 sodium methyl p-hydroxybenzoate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000004307 sodium orthophenyl phenol Substances 0.000 description 1
- 235000010294 sodium orthophenyl phenol Nutrition 0.000 description 1
- 239000001476 sodium potassium tartrate Substances 0.000 description 1
- JXKPEJDQGNYQSM-UHFFFAOYSA-M sodium propionate Chemical compound [Na+].CCC([O-])=O JXKPEJDQGNYQSM-UHFFFAOYSA-M 0.000 description 1
- 229960003212 sodium propionate Drugs 0.000 description 1
- 239000004404 sodium propyl p-hydroxybenzoate Substances 0.000 description 1
- 235000010230 sodium propyl p-hydroxybenzoate Nutrition 0.000 description 1
- LROWVYNUWKVTCU-STWYSWDKSA-M sodium sorbate Chemical compound [Na+].C\C=C\C=C\C([O-])=O LROWVYNUWKVTCU-STWYSWDKSA-M 0.000 description 1
- HELHAJAZNSDZJO-UHFFFAOYSA-L sodium tartrate Chemical class [Na+].[Na+].[O-]C(=O)C(O)C(O)C([O-])=O HELHAJAZNSDZJO-UHFFFAOYSA-L 0.000 description 1
- 229960002167 sodium tartrate Drugs 0.000 description 1
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 description 1
- RBWSWDPRDBEWCR-RKJRWTFHSA-N sodium;(2r)-2-[(2r)-3,4-dihydroxy-5-oxo-2h-furan-2-yl]-2-hydroxyethanolate Chemical compound [Na+].[O-]C[C@@H](O)[C@H]1OC(=O)C(O)=C1O RBWSWDPRDBEWCR-RKJRWTFHSA-N 0.000 description 1
- NKAAEMMYHLFEFN-ZVGUSBNCSA-M sodium;(2r,3r)-2,3,4-trihydroxy-4-oxobutanoate Chemical compound [Na+].OC(=O)[C@H](O)[C@@H](O)C([O-])=O NKAAEMMYHLFEFN-ZVGUSBNCSA-M 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- WSWCOQWTEOXDQX-MQQKCMAXSA-N sorbic acid group Chemical group C(\C=C\C=C\C)(=O)O WSWCOQWTEOXDQX-MQQKCMAXSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229920005792 styrene-acrylic resin Polymers 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 235000010269 sulphur dioxide Nutrition 0.000 description 1
- 239000004291 sulphur dioxide Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 229960003080 taurine Drugs 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000009518 tertiary packaging Methods 0.000 description 1
- 239000004308 thiabendazole Substances 0.000 description 1
- WJCNZQLZVWNLKY-UHFFFAOYSA-N thiabendazole Chemical compound S1C=NC(C=2NC3=CC=CC=C3N=2)=C1 WJCNZQLZVWNLKY-UHFFFAOYSA-N 0.000 description 1
- 229960004546 thiabendazole Drugs 0.000 description 1
- 235000010296 thiabendazole Nutrition 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000000541 tocopherol-rich extract Substances 0.000 description 1
- 235000019149 tocopherols Nutrition 0.000 description 1
- 235000015870 tripotassium citrate Nutrition 0.000 description 1
- 235000019798 tripotassium phosphate Nutrition 0.000 description 1
- 229910000404 tripotassium phosphate Inorganic materials 0.000 description 1
- 229940038773 trisodium citrate Drugs 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 229940093257 valacyclovir Drugs 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- FJHBOVDFOQMZRV-XQIHNALSSA-N xanthophyll Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)CC(O)CC1(C)C)C=CC=C(/C)C=CC2C=C(C)C(O)CC2(C)C FJHBOVDFOQMZRV-XQIHNALSSA-N 0.000 description 1
- 235000010930 zeaxanthin Nutrition 0.000 description 1
- 239000001775 zeaxanthin Substances 0.000 description 1
- 229940043269 zeaxanthin Drugs 0.000 description 1
- 239000002076 α-tocopherol Substances 0.000 description 1
- 235000004835 α-tocopherol Nutrition 0.000 description 1
- 239000002478 γ-tocopherol Substances 0.000 description 1
- QUEDXNHFTDJVIY-UHFFFAOYSA-N γ-tocopherol Chemical class OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1 QUEDXNHFTDJVIY-UHFFFAOYSA-N 0.000 description 1
- 239000002446 δ-tocopherol Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
Definitions
- the present invention concerns a process for the production of packaging for the preservation of food products and the packaging thus obtained.
- the packaging according to the invention consists of a cellulosic support such as, for example, paper or cardboard, coated with a polymer resin layer in which anionic clays are dispersed, intercalated with active molecules.
- Polymer resins comprising particular additives - here defined as “active molecules” - capable of interacting positively with substances present in the environment are used in various sectors of application, for example in the sector of food packaging, where they are also designated as “active functional packaging”.
- An active functional packaging in addition to performing the function of containing a product - for example a food product - also performs other functions, such as the function of improving conservation of the product, extending the period of freshness.
- An active packaging is therefore able to interact positively with a biologically active product, generally a food with which it is in contact or exposed, in order to obtain performances that would be impossible with a conventional packaging.
- the positive interaction of the active packaging consists, for example, in removing undesired volatile substances from the food, or substances that accelerate the deterioration thereof, or by immobilizing or releasing substances with antimicrobial and/or anti-oxidant properties.
- anti-oxidant substances are, for example, ascorbic acid and relative salts, tocopherols, gallates, butylated hydroxyanisole (BHA), butylhydroxytoluene (BHT), lactic, citric and tartaric acids and relative salts.
- Widely used antimicrobial substances are, for example, sorbic, benzoic, acetic, propionic acids and relative salts, ethyl, propyl and methyl p-hydroxybenzoates and relative salts, sulphur dioxide, biphenyl, 2-phenylphenol, sodium or potassium nitrites and nitrates.
- Paper and cardboard in terms of type of material, are already among the products most widely used in the food packaging sector. However, the demand for paper and cardboard suitable for contact with food is destined to further increase, especially for a packaging industry in search of new opportunities and innovation. The reasons for the appeal of paper and cardboard for packaging are clear; they are lightweight materials, they come from renewable sources and are recyclable and compostable. In fact, according to the specifications of ATICELCA, the Italian association of paper manufacturers, paper waste can be classified into 3 different categories, A B and C, to allow correct disposal of the objects once they have reached the end of their working life.
- Categories A and B are currently considered by all municipalities in Italy as paper waste disposable and recyclable as paper whereas not all municipalities in Italy are equipped to recycle category C.
- category A must contain 0% (zero) of plastic material
- category B can contain up to 20% of plastic material out of the total weight of the paper
- category C can contain 20 to 40% of plastic material out of the total weight of the paper.
- Cardboard packaging is often made of multiple layers of different materials, each of which provides a functional benefit.
- a cardboard container in order to maintain its shape, can be combined with a resin-coated sheet to protect the freshness of the product, acting as a barrier to humidity or air.
- Cardboard sheets are sometimes laminated with aluminium and/or polymer sheets to prevent contact with water. This technique, however, limits recycling of the paper material.
- fine plastic coatings are also used to improve the gas barrier and water repellence.
- paint compositions in general contain four classes of components.
- a transport medium a resin precursor in the form of a monomer or a polymer, pigments and additives.
- the transport medium is a liquid component that serves to dissolve (or disperse) and transport all the other components. It generally evaporates when the paint precursor solidifies, forming the coating, and dries on the surface. In paint for paper, it is generally water, whereas in oilbased paint it is an organic solvent.
- Pigments are solid particles that provide various aesthetic qualities such as colour, opacity and duration. Many additives can be included in the paint composition and contribute to various properties of the paint, such as viscosity, stability, and aesthetic qualities.
- the resin precursors are multiple and can be chosen from numerous different classes based on their nature and use, as will be illustrated below.
- One object of the present invention is therefore to provide a process for producing food packaging capable of extending the shelf-life of the food, and able to provide a stable, effective and environment-friendly packaging.
- a further object of the present invention is to provide an easily repeatable and industrially economic process.
- a further object of the present invention is to provide a food packaging comprising additives that are able to extend the product shelf-life and which is recyclable or compostable and allows a reduction in plastic waste.
- a further object of the present invention is to provide a method for inhibiting bacterial growth on food products which uses recyclable or compostable articles and which respects both the environment and human health.
- One aspect of the present invention therefore consists of a process for the production of packaging for the preservation of food products comprising the following steps: a) providing a cellulosic support suitable for use as food packaging; b) coating said cellulosic support with a layer having thickness ranging from 3 to 10 p of a resin selected from the group consisting of: polyurethane, silicone, acrylic, styrene/acrylic, thermoplastic polyester, polyolefin resins, if necessary cross-linked, for example with aliphatic isocyanates, quinones and silanes, or mixtures thereof; in which anionic or cationic clays are dispersed in a quantity ranging from 1 to 50% by weight of the total weight of the resin, intercalated with active molecules; wherein said resin has a viscosity, measured at 25°C according to the DIN 53211 standard, ranging from 30 to 90 seconds Ford 4 and a pH higher than 7.
- a resin selected from the group consisting of: polyurethane, silicone, acrylic,
- cellulosic support we mean any support of natural origin derived from cellulose such as, for example, paper, wood, cardboard and similar.
- the thickness of the coating resin of the cellulosic support plays an important role in obtaining a food packaging with the desired characteristics, in fact if it is too fine it does not allow the active molecules to perform their action on the food, whereas if the layer is too thick it compromises the workability of the support, limiting the use thereof and forming in the desired container.
- the viscosity of the resin when applied on the cellulosic support influences the functioning and effectiveness of the packaging. In fact, if the density is too low it allows the resin to be absorbed by the cellulosic support and to penetrate deeper into the fibres, and this translates into a lower effectiveness of the active molecules which, being absorbed in the support, do not correctly perform their action on the food.
- the density is too high, on the other hand, it does not allow correct application of the resin, compromising the integrity of the packaging and at the same time preventing the active molecules from migrating outside the resin to perform their action.
- the viscosity is measured according to the DIN 53211 standard at 25 °C.
- the clay (or filler) is dispersed in quantities ranging from 5 to 40% by weight of the total weight of the resin, preferably in quantities ranging from 8 to 20 % % by weight of the total weight of the resin.
- the coating resin incorporates inside it a quantity of material sufficient for the active molecules intercalated in the clay to perform their action, increasing the shelf-life of the food.
- the clay dispersed in the resin has dimensions ranging from 1 to 50 p, preferably 2 to 30 p, even more preferably 3 to 20 p.
- the dispersion can occur by means of common dispersion means including mixing, stirring, milling, or combinations thereof.
- the filler can be micronized before being dispersed in the resin or can be micronized directly during dispersion in the resin based on preparation requirements and the nature of the components.
- the active molecule is present in a quantity ranging from 1 to 50% by weight, more preferably 20 to 50%, even more preferably approximately 40 to 50% of the weight of the clay. This percentage is naturally linked to the molecular weight of the active molecule.
- the choice of the active molecule depends on the application, ranging between antimicrobials, antioxidants and antifungals.
- Beta-carotene or provitamin A (carotenoid)
- the application of the resin, or the phase of coating the cellulosic support can be conducted with any means suitable for applying a liquid on a surface, such as rotogravure, flexography, spray, etc.
- a liquid on a surface such as rotogravure, flexography, spray, etc.
- it is carried out by means of a flexographic coating (flexography) or rotogravure system.
- said cellulosic support is paper, paperboard or cardboard.
- paper we mean a flat support weighing between 10 and 150 g/m 2 and with thickness ranging from 0.03 to 0.3 mm; by the term paperboard we mean a flat support weighing between 150 and 450 g/m 2 and with thickness ranging from 0.3 to 1 mm and by the term cardboard we mean a flat support weighing between 450 and 1,200 g/m 2 and with thickness greater than 1 mm.
- examples of cationic clays that can be dispersed in the resin are: montmorillonite, smectite, bentonite.
- examples of anionic clays that can be dispersed in the resin are: hydrotalcites with different ratio between M(II) and M(III).
- the clay dispersed in the resin is an anionic clay, even more preferably a synthetic hydrotalcite, with ratio M(III) to M(II) between 0.2 and 0.4.
- the synthetic hydrotalcite is a layered solid consisting substantially of positively charged planes, the charge of which is balanced by exchangeable anions found in the interlayer region.
- the anion can therefore be an active molecule which is stored and conserved and which can in some cases be released subsequently into the environment to interact positively with it.
- hydrotalcites are layered solids, the planes of which, consisting substantially of layered double hydroxides (LDHs), have positive charges balanced by anions that are found in the interlayer region and are exchangeable.
- LDHs layered double hydroxides
- the hydrotalcite intercalated with active molecules according to the invention is a hydrotalcite having the following formula (I)
- M(II) Mg, Zn, Cu, Mn, Co, Fe, Ni;
- hydrotalcite having formula (I) can advantageously be prepared in one single stage by reaction in a solution of salts of the metals M(II) and M(III) with a solution containing the anion A n " of the active molecule A, at a temperature ranging from 10 to 60°C and at a pressure ranging from 90 to 110 KPa.
- hydrotalcites intercalated with functionally active molecules prepared in one single reaction stage by co-precipitation from the salts of the metals M(II) and M(III) in the presence of the active molecule A n ", and subsequently dispersed in a polymer matrix, allow the functionally active molecule to perform an improved long-term action
- said coating resin of the cellulosic support according to the present invention is an acrylic or styrene/acrylic resin in water emulsion.
- the acrylic resins are obtained by polmerization of acrylic or methacrylic monomers (e.g. ethyl and methyl esters of acrylic acid and methacrylic acid.
- the acrylic resins are therefore polymers or copolymers with chemical structure of the repetitive unit generically described as follows:
- Acrylic polymers, copolymers or terpolymers are used as dispersions, emulsions or water- soluble adhesives. They are used mainly, but not only, for packaging of dry food products or for secondary/tertiary packaging, applied on different substrates, for paper, cardboard or polymer films.
- Another aspect of the present invention consists of a packaging for the preservation of food products comprising a cellulosic support coated with a layer having thickness ranging from 3 to 10 micron of a resin selected from the group consisting of: phenolic, amide, epoxy, polyurethane, unsaturated polyester, cyanoacrylic, silicone, alkyl, acrylic, styrene/acrylic, polycarbonate, thermoplastic polyester, vinylester, polyvinyl fluoride and polyolefin resins, in which anionic clays are dispersed in quantities ranging from 1 to 50% by weight of the total weight of the resin, intercalated with active molecules.
- a resin selected from the group consisting of: phenolic, amide, epoxy, polyurethane, unsaturated polyester, cyanoacrylic, silicone, alkyl, acrylic, styrene/acrylic, polycarbonate, thermoplastic polyester, vinylester, polyvinyl fluoride and polyolefin resins, in which anionic clays are disper
- the clay is dispersed in quantities ranging from 5 to 40% by weight of the total weight of the resin, preferably in quantities ranging from 8 to 20% % by weight of the total weight of the resin.
- the clay has dimensions ranging from 1 to 50 p, preferably from 2 to 30 p, even more preferably from 32 to 0 p.
- the active molecules are present in quantities as previously reported for the preparation process, and are selected from the group consisting of antimicrobials, antioxidants and antifungals, as listed above.
- the cellulosic support consists of paper, paperboard or cardboard.
- the clay dispersed in the resin is an anionic clay as previously described, in particular it is the hydrotalcite intercalated with active molecules reported above.
- the resin with which the cellulosic support is coated constituting the food packaging according to the invention is an acrylic or styrene/acrylic resin.
- the coatings for the Packaging according to the invention are prepared by grinding the filler in a vehicle of a polymeric nature.
- Said vehicle can be water-based or solvent-based, depending on the application system.
- the binder is an acrylic or styrene/acrylic emulsion.
- Acrylic systems which have a low viscosity, have good adhesion on treated polyolefin films or on polymeric films with high polarity (such as polyester).
- Styrene/acrylic emulsions on the other hand, have much higher viscosities above 90 seconds Ford 4.
- the resins according to the invention are acrylic or styrene acrylic emulsions.
- the filler behaves like a thickener, in order to bring them up to a preferred viscosity of 60 seconds (which is optimal from the point of view of application), a certain percentage of water should be added, in addition to stabilizing and anti-foaming additives. Viscosity influences the transfer of the coating from the anilox to the gum and from the gum to the paper substrate.
- a further aspect of the present invention concerns a method for the inhibition of bacterial growth on food products, which comprises the packing of food products in a packaging as described previously.
- Said packaging is advantageously produced by a process as previously described.
- Hydrotalcite powders intercalated with active molecule were prepared using the hydrotalcite preparation method described in the European patent EP 2771396 Bl.
- a solution containing Zn(NO3)2*6H2O (12.9g) / A1(NO3)3*9H2O (8.14g) is added to the solution containing sodium salicylate (5.9g) under stirring and under nitrogen flow.
- the pH slowly reaches the value of 7.5 with the addition of NaOH IM (approximately 24 hours).
- NaOH IM approximately 24 hours.
- it is filtered and washed repeatedly with water and left in a vacuum oven at 50°C. It is left for a further 5h at 100°C. 8g of [ZnAl(OH)2]-salicylate (LDHsal) are obtained.
- a solution containing Zn(NO3)2*6H2O (12.9g) / A1(NO3)3*9H2O (8.14g) is added to the solution containing sodium parahydroxybenzoate (5.9g) under stirring and under nitrogen flow.
- the pH slowly reaches the value of 7.5 with the addition of NaOH IM (approximately 24 hours).
- NaOH IM approximately 24 hours.
- At the end it is filtered and washed repeatedly with water and left in a vacuum oven at 50°C. It is left for a further 5h at 100°C. 8g of [ZnAl(OH)2]-pOHbenzoate (LDHpOHBz) are obtained.
- Table 2 As can be seen from table 2, 0.0434 moles of Zn(NO3)2*6H2O were mixed with 0.0217 moles of A1(NO3)3*9H2O in 30 mL of water and 0.0368 moles of sodium p-hydroxybenzoate were added in the presence of 127 mL of NaOH IM. 8 grams of [ZnAl(OH)2]-salicylate (LDHsal) were obtained. 9 g of [ZnAl(OH)2]-pOHbenzoate (LDHpOHBz) are obtained.
- the resins used are acrylic or styrene acrylic emulsions such as, for example, Joncryl® ECO 2124-E. They were diluted with water until obtaining a viscosity of 50 seconds Ford, and hydrotalcites functionalized with molecules such as [ZnAl(OH)2]-pOHbenzoate (LDHpOHBz) or [ZnAl(OH)2]-salicylate were added.
- acrylic or styrene acrylic emulsions such as, for example, Joncryl® ECO 2124-E. They were diluted with water until obtaining a viscosity of 50 seconds Ford, and hydrotalcites functionalized with molecules such as [ZnAl(OH)2]-pOHbenzoate (LDHpOHBz) or [ZnAl(OH)2]-salicylate were added.
- Hydrocalcites were added to the resins previously described according to examples 1 and 2 in order to evaluate the dispersibility of the filler in the resin.
- a poor dispersion was noted with large powder agglomerations, visible to the naked eye.
- the known methods of dispersion of the hybrid solid in the water-based resin were used: mechanical mixing, milling, sonication. It was noted that uniform dispersion is possible only below a dimensional threshold value of the compound powders. This value was 5 microns.
- the resin with the hybrid powder then underwent one of the processes listed above, until the dimension of the powders was brought from 600 micron, as obtained by the synthesis process, to 3 microns. With these dimensions as upper limit, the dispersion in the resin was very good, and it was possible to proceed with spreading of the paint on the cardboard.
- a rotogravure system was used to transfer the functional paint onto the cardboard.
- printing is by direct contact, from the support matrix: the web of the reel passes between the matrix cylinder and a second pressure cylinder so that the ink present in the grooves is absorbed by the paper.
- the ink used is generally very liquid and the paper is very porous, with gram weight between I CK I 50 g/m 2 for paper, 150 ⁇ 450 g/m 2 for paperboard and 450-4,200 g/m 2 for cardboard.
- the functional hybrid concentration varies between 0.542.0 g/ m 2 .
- Example 4 An acrylic resin with density 1.04 g/cc, with 10% filler [ZnAl(0H)2]-salicylate (LDHsal), according to example 1, was deposited on flat paperboard weighing 250 g/m 2 with thickness of 0.6 mm. The thickness of the coating was 8 microns.
- the bactericidal capacities of the packaging according to the invention were tested in order to evaluate the effectiveness of the active molecules present in the coating.
- the shelf-life of the food in the containers treated with NF compared to the control was obtained from the data of the bacterial count at various temperatures and at various times and after evaluation of the organoleptic properties (colour, flavour, fragrance).
- the shelf-life of the white grapes increases by 4 days, for the fresh strawberries by 6 days and for the tomatoes by 5 days.
- Thickness of the paint layer deposited on the paper Thickness of the paint layer deposited on the paper.
- Hydrotalcite from Example 1 with a size of 3 microns, was mixed in a styrene/acrylic resin with a concentration of 8%. This is the maximum concentration to have a homogeneous dispersion without precipitating the solid.
- the resin with the filler was transferred to the paper substrate with a thickness of 2 microns.
- the dry residue of the paint has an amount of filler less than 0.6 g/m2, which is the minimum amount for the purpose of protecting the food.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Wrappers (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Laminated Bodies (AREA)
- Packages (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102020000019378A IT202000019378A1 (en) | 2020-08-05 | 2020-08-05 | PROCESS FOR THE CREATION OF PACKAGING FOR THE PRESERVATION OF FOOD PRODUCTS CONSISTING OF A CELLULOSIC SUPPORT COATED WITH A LAYER OF A POLYMER RESIN IN WHICH ANION CLAYS ARE DISPERSATED INTERCALATED WITH ACTIVE MOLECULES, AND PACKAGING THUS OBTAINED |
PCT/EP2021/071377 WO2022029022A1 (en) | 2020-08-05 | 2021-07-30 | Process for the production of packaging for the preservation of food products consisting of a cellulosic support coated with a polymer resin layer in which anionic clays are dispersed intercalated with active molecules, and packaging thus obtained |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4193017A1 true EP4193017A1 (en) | 2023-06-14 |
Family
ID=73139147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21758326.9A Pending EP4193017A1 (en) | 2020-08-05 | 2021-07-30 | Process for the production of packaging for the preservation of food products consisting of a cellulosic support coated with a polymer resin layer in which anionic clays are dispersed intercalated with active molecules, and packaging thus obtained |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4193017A1 (en) |
IT (1) | IT202000019378A1 (en) |
WO (1) | WO2022029022A1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1391965B1 (en) * | 2008-08-08 | 2012-02-02 | Univ Degli Studi Salerno | POLYMERIC MATERIALS FOR OBTAINING ACTIVE FOOD PACKAGES ABLE TO PROTECT AND ENHANCE THE FOODS CONTAINED AND TO REDUCE THE TREATMENTS FOR THE CONSERVATION OF THEMSELVES. |
WO2012150904A1 (en) * | 2011-05-04 | 2012-11-08 | Kth Holding Ab | Oxygen barrier for packaging applications |
ITMI20111921A1 (en) | 2011-10-24 | 2013-04-25 | Nice Filler S R L | PREPARATION PROCESS OF A POLYMER COMPOSITION INCLUDING INTERCALATED HYDROTITUDES WITH ACTIVE MOLECULES, COMPOSITION SO OBTAINED AND ARTICLES FORMED INCLUDING THE SAME. |
-
2020
- 2020-08-05 IT IT102020000019378A patent/IT202000019378A1/en unknown
-
2021
- 2021-07-30 EP EP21758326.9A patent/EP4193017A1/en active Pending
- 2021-07-30 WO PCT/EP2021/071377 patent/WO2022029022A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
IT202000019378A1 (en) | 2022-02-05 |
WO2022029022A1 (en) | 2022-02-10 |
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