CN103122201A - Inner iron printing paint for food packaging - Google Patents
Inner iron printing paint for food packaging Download PDFInfo
- Publication number
- CN103122201A CN103122201A CN2012105353674A CN201210535367A CN103122201A CN 103122201 A CN103122201 A CN 103122201A CN 2012105353674 A CN2012105353674 A CN 2012105353674A CN 201210535367 A CN201210535367 A CN 201210535367A CN 103122201 A CN103122201 A CN 103122201A
- Authority
- CN
- China
- Prior art keywords
- plate printing
- tin plate
- internal layer
- layer coatings
- coatings
- 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.)
- Granted
Links
- 238000007639 printing Methods 0.000 title claims abstract description 144
- 235000013305 food Nutrition 0.000 title claims abstract description 61
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 11
- 239000003973 paint Substances 0.000 title claims abstract description 10
- 238000004806 packaging method and process Methods 0.000 title abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 149
- 229920003180 amino resin Polymers 0.000 claims abstract description 37
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 34
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 239000002904 solvent Substances 0.000 claims abstract description 13
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 5
- 239000005011 phenolic resin Substances 0.000 claims abstract description 5
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 3
- 239000005028 tinplate Substances 0.000 claims description 145
- 239000001993 wax Substances 0.000 claims description 54
- MNAHQWDCXOHBHK-UHFFFAOYSA-N 1-phenylpropane-1,1-diol Chemical compound CCC(O)(O)C1=CC=CC=C1 MNAHQWDCXOHBHK-UHFFFAOYSA-N 0.000 claims description 23
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 23
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 20
- -1 polyol ethers Chemical class 0.000 claims description 20
- 238000002360 preparation method Methods 0.000 claims description 20
- 239000003822 epoxy resin Substances 0.000 claims description 18
- 229920000647 polyepoxide Polymers 0.000 claims description 18
- 239000004698 Polyethylene Substances 0.000 claims description 16
- 229920000573 polyethylene Polymers 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 11
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 11
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 10
- 229920003987 resole Polymers 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 8
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 claims description 7
- 239000003595 mist Substances 0.000 claims description 7
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 7
- 229920000877 Melamine resin Polymers 0.000 claims description 6
- 239000004640 Melamine resin Substances 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 229920002647 polyamide Polymers 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 5
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 5
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 5
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 4
- 229920000768 polyamine Polymers 0.000 claims description 4
- 230000035935 pregnancy Effects 0.000 claims description 4
- DAXZJJHDDZHZPA-UHFFFAOYSA-N 1-butoxybutane;1,3,5-triazine-2,4,6-triamine Chemical compound CCCCOCCCC.NC1=NC(N)=NC(N)=N1 DAXZJJHDDZHZPA-UHFFFAOYSA-N 0.000 claims description 3
- COBPKKZHLDDMTB-UHFFFAOYSA-N 2-[2-(2-butoxyethoxy)ethoxy]ethanol Chemical compound CCCCOCCOCCOCCO COBPKKZHLDDMTB-UHFFFAOYSA-N 0.000 claims description 3
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 2
- 229920005862 polyol Polymers 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 238000009835 boiling Methods 0.000 abstract description 13
- 239000003054 catalyst Substances 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000004841 bisphenol A epoxy resin Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000003628 erosive effect Effects 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 238000012856 packing Methods 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 239000002994 raw material Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical group O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 206010037211 Psychomotor hyperactivity Diseases 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- MKYLOMHWHWEFCT-UHFFFAOYSA-N Manthidine Natural products C1C2=CC=3OCOC=3C=C2C2C3=CC(OC)C(O)CC3N1C2 MKYLOMHWHWEFCT-UHFFFAOYSA-N 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical class OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- SNFRINMTRPQQLE-JQWAAABSSA-N Montanin Chemical compound O[C@H]([C@@]1(CO)O[C@H]1[C@H]1[C@H]2O3)[C@]4(O)C(=O)C(C)=C[C@H]4[C@]11OC3(CCCCCCCCCCC)O[C@@]2(C(C)=C)C[C@H]1C SNFRINMTRPQQLE-JQWAAABSSA-N 0.000 description 2
- SNFRINMTRPQQLE-OFGNMXNXSA-N Montanin Natural products O=C1[C@@]2(O)[C@@H](O)[C@@]3(CO)O[C@H]3[C@@H]3[C@H]4[C@@]5(C(=C)C)O[C@](CCCCCCCCCCC)(O4)O[C@@]3([C@H](C)C5)[C@@H]2C=C1C SNFRINMTRPQQLE-OFGNMXNXSA-N 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- QTZPBQMTXNEKRX-UHFFFAOYSA-N Voacristine pseudoindoxyl Natural products N1C2=CC=C(OC)C=C2C(=O)C21CCN(C1)C3C(C(C)O)CC1CC32C(=O)OC QTZPBQMTXNEKRX-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000009998 heat setting Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 229910052752 metalloid Inorganic materials 0.000 description 2
- 150000002738 metalloids Chemical class 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- UTOPWMOLSKOLTQ-UHFFFAOYSA-N octacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O UTOPWMOLSKOLTQ-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- KLSLBUSXWBJMEC-UHFFFAOYSA-N 4-Propylphenol Chemical compound CCCC1=CC=C(O)C=C1 KLSLBUSXWBJMEC-UHFFFAOYSA-N 0.000 description 1
- 244000226021 Anacardium occidentale Species 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004166 Lanolin Substances 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012164 animal wax Substances 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000012296 anti-solvent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 235000013871 bee wax Nutrition 0.000 description 1
- 239000012166 beeswax Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000005010 epoxy-amino resin Substances 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 235000019388 lanolin Nutrition 0.000 description 1
- 229940039717 lanolin Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 239000012184 mineral wax Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010466 nut oil Substances 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000012169 petroleum derived wax Substances 0.000 description 1
- 235000019381 petroleum wax Nutrition 0.000 description 1
- 150000004714 phosphonium salts Chemical class 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention relates to inner iron printing paint for food packaging, which comprises (a) bisphenol A, epoxy chloropropane and a catalyst; (b) an amino resin crosslinking agent; (c) phenolic resin; (d) solvent; and (e) wax powder, wherein the catalyst is a bisphenol A epoxy resin catalyst which is prepared from bisphenol A and epoxy chloropropane, the mass ratio of the bisphenol A to the epoxy chloropropane is (0.8-2):1, and the catalyst accounts for 0.9-4.3w%. According to the inner iron printing paint provided by the invention, the curing time is only 25-120 seconds, and continuous printing and coating can be performed; and meanwhile, the inner iron printing paint has favorable corrosion resistance, boiling resistance and flexibility.
Description
Technical field
The present invention relates to a kind of coatings for tin plate printing, relate in particular to a kind of internal layer coatings for tin plate printing for food product pack, belong to the tank making technology field.
Background technology
Tinplate is again tinplate, is being commonly called as of electrolytic tinplate, and english abbreviation is SPTE, refers to that the two sides is coated with Low carbon cold rolling steel sheet or the steel band of commercially pure tin.Tin mainly plays a part to prevent from corroding and get rusty, and it is incorporated into solidity to corrosion, tin-welding and the appearance attractive in appearance of the intensity of steel and formability and tin among a kind of material, has characteristic corrosion-resistant, nontoxic, that intensity is high, ductility is good.Therefore be widely used in each fields such as every profession and trade such as packaging vessel (tank processed, tubbing and food-drink packing), electronic product, household electrical appliance, automobile, motorcycles.
Along with the development of China's packaging industry, tank industry processed has also had huge development, and this development has driven the development of relevant industries-coatings for tin plate printing.Coatings for tin plate printing belongs to thermosetting coating, and process printing or roller coat are coated with and install to the metallic surface, and then heated baking makes its crosslinking curing, forms tough and tensile filming.Coatings for tin plate printing (tin printing ink) is one of planographic ink, is applied to letterest printing machine and wet type offset printing mode and prints iron sheet (tinplate) and process the general name that the metals such as steel plate, aluminium sheet are used printing ink.Coatings for tin plate printing has dividing of interior coating, outer layer coating; Rustproof lacquer can be divided into again printed form chalk and roller coat type chalk, colored ink, Lacquer finish wet goods.
The main characteristic of coatings for tin plate printing is strong to sticking of tinsel, and erosion resistance, anti-boiling, anti-baking, anti-solvent, fast light and processibility good (moulding, die-cut, seam etc.).The dried forms of coatings for tin plate printing has baking-type and ultraviolet curing type.in traditional tin graphed sheet technique, the dried forms of coating is baking-type, be that described coatings for tin plate printing is the thermofixation coatings for tin plate printing, its sticking power is good, alkali resistance also shows excellence, but the problem of thermoset coatings for tin plate printing maximum is that the speed of its curing is slow, its individual drying time reaches 35-40min, because drying time is long, can't realize continuous production, causing present tinplate to be coated with Huang whitewashes the tin graphed sheet unit and mostly still adopts the mode of operation of individual tin graphed sheet, this technique storing time is long, working hour and cycle are of a specified duration, energy consumption is large, individual tin graphed sheet lacks handiness and originality
The UV coatings for tin plate printing is to utilize UV-irradiation, make the photochromics molecular breakdown form overactivity atom or overactivity atomic group, these overactivity atoms and atomic group make the organic compound that contains unsaturated link(age) induce a series of light-initiated chain reaction, reaching at last molecule crosslinked polymerizing curable drying purpose, is a developing direction of coatings for tin plate printing.But the sticking power of UV coatings for tin plate printing is relatively poor, is not easy to carry out colored drawing thereon, and also effective not as the thermofixation coatings for tin plate printing in the performance of the aspects such as alkali resistance, anti-post-treatment, snappiness, wear resistance.
Can now is widely used in food product pack, pharmaceuticals packing, Gift Package, household supplies, medicine, chemical industry.The quantity that wherein is used for food product pack is maximum, relates to " tealeaves, moon cake, health and beauty, candy, edible wet goods ", and typical example has: high-grade tealeaves iron box packing, moon cake iron box packing, sweet oil iron flask packing etc.Compare with other wrapping material; the tinplate material has excellent barrier, gas barrier property, moistureproofness, opacifying property, fragrance protectiveness; sealing is reliable in addition; can protect preferably the color of product; simultaneously, its printing performance is good, and pattern trademark is bright-coloured attractive in appearance; prepared packaging vessel is noticeable, obtains using more and more widely in the food product pack field.
Adopt tinplate to make packaging vessel, because content is of a great variety, requirement to coating in tinplate is also different, for example, for bonbon box metalloid packing material, in order to prevent that its crimping when the post-treatment from revealing the iron scratch and getting rusty, coating in tinplate is required to have higher sticking power, flexibility and anti-processibility; For Tinned food container metalloid packing material, because tank skin contacts with content for a long time, require it to have more outstanding erosion resistance, and good tack, snappiness and anti-processibility.Simultaneously, in food processing process, need the steps such as high-temperature sterilization, the tank body that therefore requires to be used for food product pack carry out under high temperature, condition of high voltage boiling can not occur coating bubble, come off, the situation such as cracking, namely can require higher for boiling resistance.Inevitably, described any packing tank body for the food product pack field all needs nontoxic, tasteless, as to meet food sanitation safe requirement.
To sum up, how to develop a kind of set time short, can realize that preferably continuous brushing purpose coatings for tin plate printing is one of this area problem demanding prompt solution.The aspects such as the erosion resistance of described coatings for tin plate printing, boiling resistance, snappiness also should show excellence.
Summary of the invention
For the deficiencies in the prior art, one of purpose of the present invention is to provide a kind of set time short, can realize the coatings for tin plate printing of continuous brushing purpose, the erosion resistance of described coatings for tin plate printing, boiling resistance, flexibility performance excellence.
The present invention is achieved through the following technical solutions:
A kind of internal layer coatings for tin plate printing for food product pack comprises:
(a) dihydroxyphenyl propane, epoxy chloropropane and catalyzer;
(b) amino resin crosslinking agent;
(c) resol;
(d) solvent; With
(e) wax powder;
Wherein, described catalyzer is for being prepared the catalyzer of bisphenol A epoxide resin by dihydroxyphenyl propane, epoxy chloropropane; The mass ratio of described dihydroxyphenyl propane and epoxy chloropropane is (0.8-2): 1, such as 0.81:1,0.86:1,0.92:1,0.97:1,1.03:1,1.25:1,1.38:1,1.5:1,1.62:1,1.7:1,1.85:1,1.96:1 etc., the add-on of catalyzer is 0.9-4.3w%, for example 0.92w%, 0.95w%, 1.3w%, 1.9w%, 2.45w%, 3.6w%, 4.12w%, 4.23w%, 4.29w%.
Dihydroxyphenyl propane, formal name used at school 2,2-two (4-hydroxy phenyl) propane is called for short diphenylol propane, white crystal, 156～158 ℃ of fusing points are mainly for the preparation of epoxy resin and polycarbonate.Propylene oxide is colourless liquid, has like the chloroform smell, and is volatile, unstable, can be miscible, water insoluble with ethanol, ether, chloroform, trieline and tetracol phenixin etc., and can not be miscible with petroleum hydrocarbon.The main application of propylene oxide is for epoxy resin processed.
Catalyzer of the present invention is to can be used in the catalyzer that is prepared bisphenol A epoxide resin by dihydroxyphenyl propane, epoxy chloropropane.Typical but non-limiting example has alkali metal hydroxide, polyamine catalyzer, quaternary ammonium salt catalyst, season phosphonium salt catalyzer etc.
The example of described alkali metal hydroxide has sodium hydroxide, potassium hydroxide etc.;
The example of described polyamine catalyzer has quadrol, N '-hydroxyethylethylene diamine, hexamethylenetetramine, cashew nut oil modified amine hardener, SW-2 solidifying agent, x-89 epoxy hardener, SK-302 modified amine curing agent etc.
Those skilled in the art can be known, and any catalyzer for preparing bisphenol A epoxide resin by dihydroxyphenyl propane, epoxy chloropropane that can be used in all can be used for the present invention, certainly those skilled in the art should understand, when described catalyzer is used for when of the present invention, it must be dispersed in solution with dihydroxyphenyl propane and epoxy chloropropane, realize its tin graphed sheet in the follow-up stage that is heating and curing catalyzed reaction obtain the purpose of bisphenol A epoxide resin.
Preferably, catalyzer of the present invention is selected from the combination of any a kind or at least 2 kinds in alkali metal hydroxide, polyamine catalyzer, the combination of any a kind or at least 2 kinds in preferred NaOH, KOH, quadrol, N '-hydroxyethylethylene diamine, hexamethylenetetramine, further preferred quadrol.
The typical but non-limiting example of the combination of catalyzer of the present invention has: the combination of NaOH and KOH; The combination of quadrol and N '-hydroxyethylethylene diamine; The combination of hexamethylenetetramine and N '-hydroxyethylethylene diamine; The combination of quadrol and hexamethylenetetramine etc.
Bisphenol A type epoxy resin is by dihydroxyphenyl propane and the epoxy chloropropane epoxy resin that reaction generates under catalyzer exists, and has very high transparency.Industrial softening temperature is called low-molecular-weight resin or soft resin lower than 50 ℃ (mean polymerisation degree is less than 2); Softening temperature between 50～95 ℃ (mean polymerisation degree is between 2～5) be called the intermediate molecular weight resin; Softening temperature is higher than the high molecular weight resin that is called of 100 ℃ (mean polymerisation degree is greater than 5).Proportioning raw materials is different, and reaction conditions different (as reaction medium, temperature and order of addition(of ingredients)) can make the epoxy resin of different softening point, different molecular weight.The molecular weight of epoxy resin and the ratio of components of monomer have substantial connection, and when reaction conditions is identical, the ratio of epoxy chloropropane and the amount of substance of dihydroxyphenyl propane is during more near 1:1, and the molecular resin amount of gained is just larger; The consumption of alkali is more, and epoxy chloropropane is excessive more, and the molecular weight of gained resin is just lower.
Of the present inventionly contain the dihydroxyphenyl propane of 15-35w%, the epoxy chloropropane of 12-28w% and the catalyzer of 0.9-4.3w% for the internal layer coatings for tin plate printing of food product pack, preferably contain the dihydroxyphenyl propane of 20-30w%, the epoxy chloropropane of 15-25w% and the catalyzer of 1-3w%.The addition of the internal layer coatings for tin plate printing dihydroxyphenyl propane for food product pack of the present invention can be 15.4w%, 16.2w%, 16.9w%, 17.5w%, 18w%, 19.6w%, 22w%, 23.4w%, 24.7w%, 26w%, 27.8w%, 28.9w%, 29w%, 31.1w%, 33.5w%, 34.5w% etc.; The addition of described epoxy chloropropane can be 12.1w%, 12.6w%, 14w%, 15.1w%, 16w%, 19.8w%, 21w%, 23.6w%, 25w%, 28.5w% etc.
The present invention is by the control to the addition of described internal layer coatings for tin plate printing dihydroxyphenyl propane, epoxy chloropropane and catalyzer for food product pack, the mass ratio that is described dihydroxyphenyl propane and epoxy chloropropane is (0.8-2): 1, the add-on of catalyzer is 1-3w%, thereby reach the control of controlling the polymerization degree, molecular weight and the physical aspect of bisphenol A epoxide resin in coatings for tin plate printing, further satisfying invention needs of the present invention provides also coatings for tin plate printing preferably of good, the snappiness of short, boiling resistance energy, corrodibility of a kind of set time.
Internal layer coatings for tin plate printing for food product pack provided by the invention is not directly added the bisphenol A epoxide resin finished product, but add its raw materials dihydroxyphenyl propane and epoxy chloropropane, (mass ratio of dihydroxyphenyl propane and epoxy chloropropane is (0.8-2) to add-on by controlling its raw material and catalyzer: 1), obtain the internal layer coatings for tin plate printing that the polymerization degree is suitable, physicochemical property is suitable.In prior art, be directly to add the finished product of bisphenol A type epoxy resin in coatings for tin plate printing mostly, can't select its polymerization degree.Add the bisphenol A epoxide resin finished product to compare with the combination that adds dihydroxyphenyl propane/epoxy chloropropane/catalyzer, less with the ratio that other resins are cured in the process of being heating and curing, so the compactness of paint film is relatively poor, antiseptic property a little less than.
Aminoresin by the general name that contains the resin that amino compound and formaldehyde forms through polycondensation, is a kind of multi-functional compound, to contain (NH
2) compound and aldehydes (the being mainly formaldehyde) addition condensation of functional group, the methylol (CH that then generates
2OH) with aliphatic monobasic alcohol part etherificate or all etherificate and the product that obtains.Aminoresin plays the effect of linking agent in coatings for tin plate printing of the present invention.Generally, bisphenol A type epoxy resin and aminoresin access the paint film that obdurability is arranged of tridimensional network by heating energy.And in internal layer coatings for tin plate printing formula of the present invention, the combination of dihydroxyphenyl propane, epoxy chloropropane, catalyzer and aminoresin is in the situation that heating not only can form fast the internal layer paint film, and strengthen the erosion resistance of internal layer paint film.
Preferably, aminoresin of the present invention is selected from isopropylcarbinol etherified amino resins, benzene for the combination of any a kind or at least 2 kinds in aminoresin, pregnancy etherified amino resins, methyl etherified amino resin, isobutyl etherified amino resins, ethanol etherified amino resins, butyl ether melamine resin, methyl etherified melamine resin, and described combination is the combination of isopropylcarbinol etherified amino resins and methyl etherified amino resin for example; The combination of ethanol etherified amino resins and methyl etherified amino resin; Benzene is for the combination of aminoresin and pregnancy etherified amino resins; The combination of methyl etherified amino resin, isobutyl-etherificate aminoresin and methyl etherified melamine resin; The combination of butyl ether melamine resin, pregnancy etherified amino resins and methyl etherified amino resin etc., the preferable methyl etherified amino resins.
Preferably, the described aminoresin that contains 12-28w% for the internal layer coatings for tin plate printing of food product pack, such as 12.1w%, 12.6w%, 14w%, 12.2w%, 15w%, 18.9w%, 21w%, 26.5w%, 27.9w%, 29.3w% etc. preferably contained the aminoresin of 12-28w%.
Preferably, described resol is selected from heat-reactive phenolic resin, preferably from 284 resol and/or the FN-2 type heat-reactive phenolic resin of Shanghai Xinhua Paint Factory.
Preferably, the described resol that contains 12-28w% for the internal layer coatings for tin plate printing of food product pack, such as 12.1w%, 12.6w%, 14w%, 15.7w%, 16w%, 19.5w%, 23w%, 24.6w%, 27w%, 29.5w% etc. preferably contained the resol of 15-25w%.
Because coatings for tin plate printing belongs to heat fixed type ink, need high bake, in the hot setting process, the internal layer coatings for tin plate printing has good levelling property in order to make, and need to add wherein solvent.Simultaneously, in the internal layer coatings for tin plate printing, solvent can also increase the dispersiveness of each composition in coating, the glossiness of increase coating.Selection for solvent in coatings for tin plate printing is to well known to a person skilled in the art technology, and any can reaching a high temperature when toasting realizes that the solvent of coatings for tin plate printing levelling property all can be used for the present invention.
Preferably, solvent of the present invention is the polyol ethers kind solvent, be selected from diethylene glycol monomethyl ether, propylene glycol monomethyl ether, the combination of any a kind or at least 2 kinds in dipropylene glycol dme, butyl glycol ether, dipropylene glycol methyl ether, dipropylene glycol dme, ethylene glycol phenyl ether, triethylene glycol butyl ether, diethylene glycol ether, described combination be the combination of diethylene glycol monomethyl ether and propylene glycol monomethyl ether for example; The combination of butyl glycol ether and dipropylene glycol dme; The combination of ethylene glycol phenyl ether and dipropylene glycol dme; The combination of diethylene glycol ether and dipropylene glycol methyl ether; The combination of dipropylene glycol methyl ether, triethylene glycol butyl ether and diethylene glycol ether etc., preferred diethylene glycol monomethyl ether, propylene glycol monomethyl ether, the combination of any a kind or at least 2 kinds in dipropylene glycol dme, butyl glycol ether, dipropylene glycol methyl ether, the combination of further preferred butyl glycol ether and dipropylene glycol methyl ether.
For the addition of solvent, the present invention is concrete the restriction not, and after adding coatings for tin plate printing with it, in the coatings for tin plate printing formula, the quality percentage composition of each component adds and is 100% to be as the criterion.
The wax powder is added on can play enhancing antifriction scrape along adhesion strength in printing ink, strengthen resistance to blocking, strengthen hydrophobic effect.The wax powder has following performance: be 1. coarse, hard frangible solid in the time of 20 ℃; 2. melt in time more than 40 ℃, but do not decompose; 3. during slightly higher than fusing point, corresponding low viscosity is arranged just when temperature; 4. be a kind of crystal from coarse to meticulous; 5. denseness and solvability change according to temperature; 6. can polishing under light pressure.The wax powder can be divided into the pure natural wax powder that comprises mineral wax, animal wax, beeswax, lanolin, natural montanin wax etc.; The modified natural wax powder that comprises paraffin and Microcrystalline Wax etc.; The partial synthesis wax that comprises montanic acid wax, oxidized petroleum wax, esterification montanin wax etc.; The synthetic wax that comprises polyolefin-wax, copolymer waxes, hydrocarbon wax oxidate etc.Those skilled in the art can and consult related data the wax powder in internal layer coatings for tin plate printing of the present invention is selected according to the expertise of grasping, and the present invention is not specifically limited.
Preferably, wax powder of the present invention is selected from polyethylene wax, the preferably combination of any a kind or at least 2 kinds in high density polyethylene waxes, the modified polyethylene wax micro mist that is added with tetrafluoroethylene wax, polyamide modified polyethylene wax, the combination of described combination such as high density polyethylene waxes/the be added with modified polyethylene wax micro mist of tetrafluoroethylene wax, be added with combination of the modified polyethylene wax micro mist of tetrafluoroethylene wax/polyamide modified polyethylene wax etc., further preferably be added with modified polyethylene wax micro mist and/or the polyamide modified polyethylene wax of tetrafluoroethylene wax.Wherein, the density 〉=0.95g/cm of described high density polyethylene waxes
3For example, 0.96g/cm
3, 0.97g/cm
3, 0.98g/cm
3Deng.
Wax powder of the present invention all can be by commercially available, as the modified polyethylene wax micro mist that is added with tetrafluoroethylene wax in joule chemical plant, Shanghai, the polyamide modified polyethylene wax of German Clariant wax powder 9615A(), German Ke Laien wax powder 3260(high density polyethylene waxes), the VESTOWAX A616(polyethylene wax of Degussa) etc.
Preferably, described internal layer coatings for tin plate printing for food product pack contains the wax powder of 1-6w%, and such as 1.2w%, 3.6w%, 4.8w%, 5.2w% etc. preferably contained the wax powder of 2-5w%.
As one embodiment of the present invention, described internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the mass percent of described each component of coatings for tin plate printing adds and is 100%;
Perhaps, described internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the mass percent of described each component of coatings for tin plate printing adds and is 100%.
As optimal technical scheme, described internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the mass percent of described each component of coatings for tin plate printing adds and is 100%;
Perhaps, described internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the mass percent of described each component of coatings for tin plate printing adds and is 100%.
As technical scheme further preferably, described internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 1:1, and the mass percent of described each component of coatings for tin plate printing adds and is 100%;
Preferably, described internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 2:1, and the mass percent of described each component of coatings for tin plate printing adds and is 100%.
Alternatively, described internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 1:1;
Perhaps, described internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 2:1.
The preparation method of the internal layer coatings for tin plate printing for food product pack provided by the invention is that those skilled in the art can select by prior art and the practical situation of its grasp fully, described preparation method's typical but non-limiting example is: will mix according to formula rate for each raw material of the internal layer coatings for tin plate printing of food product pack, then stir, heat up simultaneously and react, until till the solution homogeneous.
Two of purpose of the present invention is to provide a kind of continuous roll bending tin graphed sheet method for food product pack, and described tin graphed sheet method is used the internal layer coatings for tin plate printing for food product pack provided by the invention, comprises the steps:
(1) preparation internal layer coatings for tin plate printing;
(2) coating coatings for tin plate printing;
(3) 200-400 ℃ of hot setting 20-120s;
(4) cooling, rolling gets the coiled strip finished product;
Preferably, described method comprises the steps:
(1) each component of the described internal layer coatings for tin plate printing of one of the object of the invention is mixed, heated and stirred gets the internal layer coatings for tin plate printing to homogeneous;
(2) the internal layer coatings for tin plate printing that step (1) is obtained is coated with tin graphed sheet by rubber roll and iron roll;
(3) 200-400 ℃ of lower high bake 20-120s;
(4) cooling, rolling gets the coiled strip finished product.
Compared with prior art, the present invention has following beneficial effect:
(1) set time is short: the hot setting time of internal layer coatings for tin plate printing provided by the invention only needs 25～120s, is one of the percentage of the hot setting time (35-40min) of coatings for tin plate printing in prior art; And due to the shortening of hot setting time, realized that the continuous seal of tinplate or steel plate is coated with;
(2) erosion resistance, snappiness and boiling resistance performance are excellent: internal layer coatings for tin plate printing provided by the invention is by the selection to formula material composition and content, make the printed coating density improve, erosion resistance, boiling resistance have obtained greatly improving, the present invention simultaneously substitutes the bisphenol A type epoxy resin finished product with the raw materials of bisphenol A type epoxy resin, the combination of the printed coating that is and tinplate or steel plate is tightr, and snappiness is better;
Embodiment
For the present invention is described better, be convenient to understand technical scheme of the present invention, typical but non-limiting embodiment of the present invention is as follows:
Embodiment 1
A kind of internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Preparation method: will mix according to formula rate for each raw material of the internal layer coatings for tin plate printing of food product pack, then stir, heat up simultaneously and react, until till the solution homogeneous.
Embodiment 2
A kind of internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
The preparation method is identical with the preparation method of embodiment 1.
Embodiment 3
A kind of internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
The preparation method is identical with the preparation method of embodiment 1.
Embodiment 4
A kind of internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 1:1;
The preparation method is identical with the preparation method of embodiment 1.
Embodiment 5
A kind of internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 1:1;
The preparation method is identical with the preparation method of embodiment 1.
Embodiment 6
A kind of internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 1:1;
The preparation method is identical with the preparation method of embodiment 1.
Embodiment 7
A kind of internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 2:1;
The preparation method is identical with the preparation method of embodiment 1.
Comparative Examples 1
Select internal layer coatings for tin plate printing formula that tradition is used for food product pack as a comparison case, a kind of internal layer coatings for tin plate printing for food product pack comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 1:1.
Comparative Examples 2
A kind of lithographic plate tin graphed sheet method is used the described internal layer coatings for tin plate printing for food product pack of Comparative Examples 1, and described method comprises the steps:
(1) preparation internal layer coatings for tin plate printing;
(2) coating coatings for tin plate printing;
(3) 205 ℃ of hot setting 35-45min;
(4) cooling, rolling gets the coiled strip finished product;
Embodiment 8
A kind of continuous lithographic plate tin graphed sheet method is used the described internal layer coatings for tin plate printing for food product pack of embodiment 1-7, and described method comprises the steps:
(1) preparation internal layer coatings for tin plate printing;
(2) coating coatings for tin plate printing;
(3) 200-400 ℃ of hot setting 20-120s;
(4) cooling, rolling gets the coiled strip finished product.
Wherein, the finished product that the internal layer coatings for tin plate printing tin graphed sheet that is used for food product pack that embodiment 1 provides obtains is sample 1; The finished product that the internal layer coatings for tin plate printing tin graphed sheet that is used for food product pack that embodiment 2 provides obtains is sample 2; The finished product that the internal layer coatings for tin plate printing tin graphed sheet that is used for food product pack that embodiment 3 provides obtains is sample 3; The finished product that the internal layer coatings for tin plate printing tin graphed sheet that is used for food product pack that embodiment 4 provides obtains is sample 4; The finished product that the internal layer coatings for tin plate printing tin graphed sheet that is used for food product pack that embodiment 5 provides obtains is sample 5; The finished product that the internal layer coatings for tin plate printing tin graphed sheet that is used for food product pack that embodiment 6 provides obtains is sample 6; The finished product that the internal layer coatings for tin plate printing tin graphed sheet that is used for food product pack that embodiment 7 provides obtains is sample 7.
Performance test:
(1) the internal layer coatings for tin plate printing that is used for food product pack that embodiment 1-7 and Comparative Examples 1 is obtained is carried out the quick-drying test, testing method is: with scraper, the internal layer coatings for tin plate printing is coated on clean tinplate, 200-400 ℃ of hot setting controlled build between 4-8 μ m;
Wherein, the internal layer coatings for tin plate printing of Comparative Examples 1 needs under 200-400 ℃ of condition, and 35-45min could solidify; The internal layer coatings for tin plate printing that embodiment provides is under 200-400 ℃, and be 20-120s the set time that needs, and be 120s, 118s, 54s, 44s, 38s, 23s, 20s the set time during 200 ℃ of embodiment 1-7 successively.
(2) sample that embodiment 8 and Comparative Examples 2 is obtained carries out the test of sticking power, erosion resistance, boiling resistance, anti-butanone (MEK) wiping, anti-processibility, and testing method is as follows:
Sticking power: measure sticking power by the cross-hatching that GB/T9286 provides.
Erosion resistance: sample under 120 ℃ of conditions, soaks 90min in concentration is 2% lactic acid aqueous solution, without foaming, albefaction, water spot, change fade, the phenomenon of boiling displacement, it is qualified to be.
Boiling resistance: sample under 125 ℃ of conditions, heating 90min, without foaming, albefaction, water spot, change fade, the phenomenon of boiling displacement, it is qualified to be.
Anti-butanone (MEK) wiping: test by GB/T17748 with the solvent resistance tester.
Test result is as shown in table 1:
The performance test results of table 1 embodiment 1-7 and the described internal layer coatings for tin plate printing of Comparative Examples 1
Do as one likes can test result can be found out, the set time of the internal layer coatings for tin plate printing for food product pack provided by the invention is short, can realize operate continuously, and the physicochemical properties such as sticking power and erosion resistance are qualified, and more traditional internal layer coatings for tin plate printing (Comparative Examples) performance is excellent; And the anti-good processability of internal layer coatings for tin plate printing provided by the invention can disposable impact briquetting.
Should be noted that and understand, in the situation that do not break away from the desired the spirit and scope of the present invention of accompanying claim, can make to the present invention of foregoing detailed description various modifications and improvement.Therefore, the scope of claimed technical scheme is not subjected to the restriction of given any specific exemplary teachings.
Applicant's statement, the present invention illustrates method detailed of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned method detailed, does not mean that namely the present invention must rely on above-mentioned method detailed and could implement.The person of ordinary skill in the field should understand, any improvement in the present invention is to the interpolation of the equivalence replacement of each raw material of product of the present invention and ancillary component, the selection of concrete mode etc., within all dropping on protection scope of the present invention and open scope.
Claims (10)
1. an internal layer coatings for tin plate printing that is used for food product pack, is characterized in that, described coatings for tin plate printing comprises:
(a) dihydroxyphenyl propane, epoxy chloropropane and catalyzer;
(b) amino resin crosslinking agent;
(c) resol;
(d) solvent; With
(e) wax powder;
Wherein, described catalyzer is for being prepared the catalyzer of bisphenol A epoxide resin by dihydroxyphenyl propane, epoxy chloropropane; The mass ratio of described dihydroxyphenyl propane and epoxy chloropropane is (0.8-2): 1, and the add-on of catalyzer is 0.9-4.3w%.
2. coatings for tin plate printing as claimed in claim 1, it is characterized in that, described catalyzer is selected from the combination of any a kind or at least 2 kinds in alkali metal hydroxide, polyamine catalyzer, the combination of any a kind or at least 2 kinds in preferred NaOH, KOH, quadrol, N '-hydroxyethylethylene diamine, hexamethylenetetramine, further preferred quadrol;
Preferably, contain the dihydroxyphenyl propane of 15-35w%, the epoxy chloropropane of 12-28w% and the catalyzer of 0.9-4.3w% in described coatings for tin plate printing, preferably contain the dihydroxyphenyl propane of 20-30w%, the epoxy chloropropane of 15-25w% and the catalyzer of 1-3w%.
3. coatings for tin plate printing as claimed in claim 1 or 2, it is characterized in that, described aminoresin is selected from isopropylcarbinol etherified amino resins, benzene for the combination of any a kind or at least 2 kinds in aminoresin, pregnancy etherified amino resins, methyl etherified amino resin, isobutyl etherified amino resins, ethanol etherified amino resins, butyl ether melamine resin, methyl etherified melamine resin, preferable methyl etherified amino resins;
Preferably, contain the aminoresin of 12-28w% in described internal layer coatings for tin plate printing, preferably contain the aminoresin of 15-25w%;
Preferably, described resol is selected from heat-reactive phenolic resin, preferably from 284 resol and/or the FN-2 type heat-reactive phenolic resin of Shanghai Xinhua Paint Factory;
Preferably, contain the resol of 12-28w% in described coatings for tin plate printing, preferably contain the resol of 15-25w%.
4. internal layer coatings for tin plate printing as described in one of claim 1-3, it is characterized in that, described solvent is the polyol ethers kind solvent, be selected from diethylene glycol monomethyl ether, propylene glycol monomethyl ether, the dipropylene glycol dme, butyl glycol ether, dipropylene glycol methyl ether, the dipropylene glycol dme, ethylene glycol phenyl ether, the triethylene glycol butyl ether, the combination of any a kind or at least 2 kinds in diethylene glycol ether, preferred diethylene glycol monomethyl ether, propylene glycol monomethyl ether, the dipropylene glycol dme, butyl glycol ether, the combination of any a kind or at least 2 kinds in dipropylene glycol methyl ether, the combination of further preferred butyl glycol ether and dipropylene glycol methyl ether,
Preferably, described wax powder is selected from polyethylene wax, the preferably combination of any a kind or at least 2 kinds in high density polyethylene waxes, the modified polyethylene wax micro mist that is added with tetrafluoroethylene wax, polyamide modified polyethylene wax further preferably is added with modified polyethylene wax micro mist and/or the polyamide modified polyethylene wax of tetrafluoroethylene wax; Wherein, the density 〉=0.95g/cm of described high density polyethylene waxes
3
Preferably, contain the wax powder of 1-6w% in described internal layer coatings for tin plate printing, preferably contain the wax powder of 2-5w%.
5. internal layer coatings for tin plate printing as described in one of claim 1-4, is characterized in that, described internal layer coatings for tin plate printing comprises following component by mass percentage:
Wherein, the mass percent of each component of internal layer coatings for tin plate printing adds and is 100%;
Preferably, described internal layer coatings for tin plate printing comprises following component by mass percentage:
Wherein, the mass percent of each component of internal layer coatings for tin plate printing adds and is 100%.
6. internal layer coatings for tin plate printing as described in one of claim 1-5, is characterized in that, described internal layer coatings for tin plate printing comprises following component by mass percentage:
Wherein, the mass percent of each component of internal layer coatings for tin plate printing adds and is 100%;
Preferably, described internal layer coatings for tin plate printing comprises following component by mass percentage:
Wherein, the mass percent of each component of internal layer coatings for tin plate printing adds and is 100%.
7. internal layer coatings for tin plate printing as described in one of claim 1-6, is characterized in that, described internal layer coatings for tin plate printing comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 1:1, and the mass percent of described each component of internal layer coatings for tin plate printing adds and is 100%;
Preferably, described internal layer coatings for tin plate printing comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 2:1, and the mass percent of described each component of internal layer coatings for tin plate printing adds and is 100%.
8. internal layer coatings for tin plate printing as described in one of claim 1-7, is characterized in that, described internal layer coatings for tin plate printing comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 1:1;
Preferably, described internal layer coatings for tin plate printing comprises following component by mass percentage:
Wherein, the volume ratio of butyl glycol ether and dipropylene glycol methyl ether is 2:1.
9. the internal layer coatings for tin plate printing for food product pack as described in one of claim 1-8, is characterized in that, described internal layer coatings for tin plate printing for food product pack is under the solidification value of 200-400 ℃, and be only 25-120s set time.
10. a continuous coiled strip tin graphed sheet method, is characterized in that, described tin graphed sheet method is used the internal layer coatings for tin plate printing for food product pack as described in one of claim 1-8, and described method comprises the steps:
(1) preparation is used for the internal layer coatings for tin plate printing of food product pack;
(2) coating coatings for tin plate printing;
(3) 200-400 ℃ of hot setting 20-120s;
(4) cooling, rolling gets the coiled strip finished product;
Preferably, described method comprises the steps:
(1) each component of the described internal layer coatings for tin plate printing for food product pack of one of claim 1-8 is mixed, heated and stirred must be used for the internal layer coatings for tin plate printing of food product pack to homogeneous;
(2) the internal layer coatings for tin plate printing that is used for food product pack that step (1) is obtained is coated with tin graphed sheet by rubber roll and iron roll;
(3) 200-400 ℃ of lower high bake 20-120s;
(4) cooling, rolling gets the coiled strip finished product.
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| CN105922774A (en) * | 2016-04-26 | 2016-09-07 | 奥瑞金包装股份有限公司 | SPTE (Steel Plate Tin Electrolytic) print-coating method, color-printed iron and color-printed iron container |
| CN105922774B (en) * | 2016-04-26 | 2018-07-27 | 奥瑞金科技股份有限公司 | Taggers tin prints coating method, color printing iron and color metal-decorating container |
| CN105907247A (en) * | 2016-06-01 | 2016-08-31 | 黄玉华 | Water-based boiling resistant paint, preparation method and use method thereof |
| CN107760082A (en) * | 2017-10-02 | 2018-03-06 | 镇江中焱数控设备有限公司 | A kind of lathe high-temperature resistant coating |
| CN110256993A (en) * | 2018-12-05 | 2019-09-20 | 广东嘉元科技股份有限公司 | It is a kind of applied to the colloid copper foil for preparing copper coated foil plate |
| CN110256993B (en) * | 2018-12-05 | 2021-04-06 | 广东嘉元科技股份有限公司 | Colloidal copper foil applied to preparation of copper-clad plate |
| CN110330857A (en) * | 2019-06-11 | 2019-10-15 | 清远慧谷新材料技术有限公司 | Food packaging metallic paint and preparation method thereof |
| CN110194922A (en) * | 2019-06-27 | 2019-09-03 | 佛山市顺德区顺峰药品包装材料有限公司 | A kind of oiliness inside courtyard that aluminium soft tube packaging inner coating uses |
| CN112266698A (en) * | 2020-09-30 | 2021-01-26 | 苏州市三新材料科技股份有限公司 | Transparent coating for high-scratch-resistance tank and preparation method thereof |
| CN116179051A (en) * | 2023-03-06 | 2023-05-30 | 深圳市深赛尔股份有限公司 | Beverage can inner wall anti-corrosion coating and preparation method thereof |
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