CN110791143A - LED curing pad printing ink for plastic materials - Google Patents
LED curing pad printing ink for plastic materials Download PDFInfo
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- CN110791143A CN110791143A CN201910981873.8A CN201910981873A CN110791143A CN 110791143 A CN110791143 A CN 110791143A CN 201910981873 A CN201910981873 A CN 201910981873A CN 110791143 A CN110791143 A CN 110791143A
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- Prior art keywords
- printing ink
- pad printing
- parts
- led curing
- byk
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- 238000007649 pad printing Methods 0.000 title claims abstract description 63
- 239000000463 material Substances 0.000 title claims abstract description 35
- 239000004033 plastic Substances 0.000 title claims abstract description 31
- 229920003023 plastic Polymers 0.000 title claims abstract description 31
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 34
- 239000002904 solvent Substances 0.000 claims abstract description 26
- 239000002270 dispersing agent Substances 0.000 claims abstract description 23
- 239000000049 pigment Substances 0.000 claims abstract description 20
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 19
- 229920006150 hyperbranched polyester Polymers 0.000 claims abstract description 19
- 239000002562 thickening agent Substances 0.000 claims abstract description 18
- 239000003999 initiator Substances 0.000 claims abstract description 16
- 229920003986 novolac Polymers 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims abstract description 13
- 238000001723 curing Methods 0.000 claims description 43
- 238000003756 stirring Methods 0.000 claims description 33
- 239000011259 mixed solution Substances 0.000 claims description 23
- -1 4-methylthiophenyl Chemical group 0.000 claims description 21
- 238000000227 grinding Methods 0.000 claims description 21
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 16
- 229920000728 polyester Polymers 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 14
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 12
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims description 12
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 11
- 239000006185 dispersion Substances 0.000 claims description 11
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 11
- KTALPKYXQZGAEG-UHFFFAOYSA-N 2-propan-2-ylthioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC(C(C)C)=CC=C3SC2=C1 KTALPKYXQZGAEG-UHFFFAOYSA-N 0.000 claims description 10
- GUCYFKSBFREPBC-UHFFFAOYSA-N [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C(=O)C1=C(C)C=C(C)C=C1C GUCYFKSBFREPBC-UHFFFAOYSA-N 0.000 claims description 10
- 239000006229 carbon black Substances 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910021485 fumed silica Inorganic materials 0.000 claims description 8
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 8
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- 150000002148 esters Chemical class 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- KJSGODDTWRXQRH-UHFFFAOYSA-N 2-(dimethylamino)ethyl benzoate Chemical compound CN(C)CCOC(=O)C1=CC=CC=C1 KJSGODDTWRXQRH-UHFFFAOYSA-N 0.000 claims description 4
- 150000002576 ketones Chemical class 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 241000557626 Corvus corax Species 0.000 claims description 3
- SYIDJAUAPDQFRN-UHFFFAOYSA-N 4-[(2,5-dichlorophenyl)diazenyl]-5-methyl-2-phenyl-4h-pyrazol-3-one Chemical compound CC1=NN(C=2C=CC=CC=2)C(=O)C1N=NC1=CC(Cl)=CC=C1Cl SYIDJAUAPDQFRN-UHFFFAOYSA-N 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 claims description 2
- 239000005441 aurora Substances 0.000 claims description 2
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 2
- QFFVPLLCYGOFPU-UHFFFAOYSA-N barium chromate Chemical compound [Ba+2].[O-][Cr]([O-])(=O)=O QFFVPLLCYGOFPU-UHFFFAOYSA-N 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- WDWDWGRYHDPSDS-UHFFFAOYSA-N methanimine Chemical compound N=C WDWDWGRYHDPSDS-UHFFFAOYSA-N 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 235000013799 ultramarine blue Nutrition 0.000 claims description 2
- 239000000976 ink Substances 0.000 abstract description 78
- 229910052736 halogen Inorganic materials 0.000 abstract description 7
- 150000002367 halogens Chemical class 0.000 abstract description 7
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052753 mercury Inorganic materials 0.000 abstract description 7
- 230000003321 amplification Effects 0.000 abstract description 2
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract description 2
- 238000007639 printing Methods 0.000 description 19
- 239000000203 mixture Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 9
- 239000000178 monomer Substances 0.000 description 6
- 229910002027 silica gel Inorganic materials 0.000 description 6
- 239000000741 silica gel Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000007865 diluting Methods 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000007794 irritation Effects 0.000 description 3
- 239000012046 mixed solvent Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 238000010023 transfer printing Methods 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003759 ester based solvent Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Natural products OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N benzoic acid ethyl ester Natural products CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000008269 hand cream Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
- C09D11/104—Polyesters
Abstract
The invention discloses an LED curing pad printing ink for plastic materials, and belongs to the technical field of pad printing inks. An LED curing pad printing ink for plastic materials comprises a photoinitiator, an auxiliary initiator, a solvent, hyperbranched polyester acrylate, novolac epoxy acrylate, a defoaming agent, a dispersing agent, a pigment, a filler and a thickening agent; compared with the prior art, the curing range is wide, the pad printing ink can be cured by using a mercury lamp, a halogen lamp and an LED lamp, meanwhile, the pad printing font of the pad printing ink is fine, the line width can reach 0.2mm, and the RCA (Rolling circle amplification) friction resistance can reach more than 45 times.
Description
Technical Field
The invention relates to the technical field of pad printing ink, in particular to LED curing pad printing ink for plastic materials.
Background
The pad printing process is a special printing process which is widely applied, firstly a mold is opened on a steel plate to manufacture needed figures and characters, then ink in the mold groove is transferred to the surface of a material through a silica gel head, characters or patterns can be pad printed on products with small areas, concave and convex surfaces and irregular surfaces, the pad printing process has very obvious advantages, the defects of the screen printing process are overcome, compared with solvent type pad printing ink, the UV pad printing ink has the advantages of small VOC volatilization amount, environmental protection, rapid curing, high production efficiency and the like.
The UV curing mode comprises modes of a mercury lamp, a halogen lamp, an LED lamp and the like, wherein the ultraviolet wavelength emitted by the mercury lamp and the halogen lamp is 200-400nm, the wave band is wide, multiple photoinitiators can be used in a matching mode, the curing purpose can be achieved easily, the wave band of the LED lamp is single, generally 365nm and 395nm, the types of the selectable photoinitiators are few, and the curing is difficult, so that the ink curing range in the prior art is narrow.
By search, Chinese patent CN108641470A discloses a solvent-free UV-LED curable pad printing ink with 5-15 parts of monomers, from the monomer proportion, good ink transferability is difficult to achieve due to lack of solvent volatilization gradient, the monomers hardly volatilize, when the monomer is used for achieving the purpose of dilution, the ink transferability is obviously affected by the monomer amount exceeding 5%, and when the monomer content exceeds more than 10%, the residual ink amount on an adhesive head reaches 100%, so that the defects of shallow pad printing coating, bottom penetration and the like on materials are caused.
Chinese patent CN102250508B discloses an ultraviolet light-cured pad printing ink, its RCA test can reach 300 times without dropping off, but the test does not note the concrete shape of the tested part, the line and face test effect has great difference, when the line of pad printing font is extremely fine and reaches 0.2mm, the contact area between the roller of RCA tester and the material is larger than the font line width and completely covers the font, such test condition is far more harsh than friction coating face.
In addition, the pad printing ink in the prior art is easy to be strongly corroded by chemicals containing ester solvents, glycerin and the like, so that the adhesion of an ink coating is poor, and phenomena such as paint removal and the like occur, so that the pad printing ink in the prior art still has some defects.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an LED curing pad printing ink for a plastic material.
In order to achieve the purpose, the invention adopts the following technical scheme:
an LED curing pad printing ink for plastic materials comprises a photoinitiator, an auxiliary initiator, a solvent, hyperbranched polyester acrylate, novolac epoxy acrylate, a defoaming agent, a dispersing agent, a pigment, a filler and a thickening agent.
Preferably, the photoinitiator is one or more of 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, bis (2, 4, 6-trimethylbenzoyl) phenylphosphine oxide, 2-methyl-1- (4-methylthiophenyl) -2-morpholine-1-one and 2-isopropyl thioxanthone, and the co-initiator is one of N, N-ethyl dimethyl benzoate, N-2-ethylhexyl dimethyl benzoate and dimethylaminoethyl benzoate.
Preferably, the solvent includes ester or ketone solvents such as butyl acetate, propylene glycol methyl ether acetate and cyclohexanone.
Preferably, the pigment is one of titanium dioxide, aurora red, lithol scarlet, hansa yellow R, methyleneamine pigment yellow, permanent yellow, phthalocyanine blue, ultramarine blue, quinacridone violet and carbon black;
the carbon black is specifically one of Mitsubishi MA11, MA7, Chuntai AS-82, AS-99A, AS-45, Columbia Raven410, Raven420 and Raven 450.
Preferably, the defoaming agent is specifically one of BYK-054, BYK-066N, BYK-088, BYK-1790, BYK-A500 and SiFastSF 831;
the dispersing agent is specifically one of BYK-163, BYK-168 and BYK-2008;
the filler is one or more of calcium carbonate, barium sulfate, talcum powder and poly (tetrafluoroethylene) wax;
the thickener is one or more of fumed silica and organic bentonite.
Preferably, the components are composed of the following components in parts by mass:
photoinitiator (2): 8-12 parts;
solvent: 10-15 parts;
hyperbranched polyester acrylate: 5-10 parts;
polyester acrylate: 25-45 parts;
phenolic epoxy acrylate: 8-20 parts;
defoaming agent: 0.3-1 part;
dispersing agent: 2-5 parts;
pigment: 4-25 parts;
filling: 3-15 parts;
thickening agent: 0.5-1 part.
A preparation method of LED curing pad printing ink for plastic materials comprises the following steps:
s1: putting a photoinitiator into a batching barrel;
s2: adding a solvent into the solution obtained in the step S1, stirring the solution, and enabling the solution to be free of particles;
s3: sequentially adding hyperbranched polyester acrylate, polyester acrylate and novolac epoxy acrylate into the step S2;
s4: stirring the mixed solution in the step S3, and uniformly mixing;
s5: adding a dispersing agent into the step S4, and stirring;
s6: adding pigment in the phase step S5, and stirring;
s7: grinding the mixed solution in the step S6 by using a grinder;
s8: adding calcium carbonate as a filler, barium sulfate, talcum powder, wax powder, a dispersing agent and a thickening agent into the mixed solution obtained in the step S7 in sequence, and stirring;
s9: performing secondary grinding on the mixed solution in the step S8 by using a grinding machine;
s10: adding a solvent into the step S9, and stirring;
s11: and filtering the mixed liquid in the step S10 to obtain the LED curing pad printing ink for the plastic material.
Preferably, the stirring device in the manufacturing step is specifically a dispersion machine, and the rotation speed of the dispersion machine is 800-.
Preferably, the grinder in the step S7 and the step S9 is a three-roll grinder, and the grinding fineness is less than or equal to 5 mu.
Preferably, the filter cloth mesh number of the step S11 is 300 meshes.
Compared with the prior art, the invention provides the LED curing pad printing ink for the plastic material, which has the following beneficial effects:
1. the light-emitting diode (LED) curing pad printing ink for plastic materials is characterized in that 2, 4, 6-trimethylbenzoyl-diphenyl phosphine oxide, bis (2, 4, 6-trimethylbenzoyl) phenyl phosphine oxide, 2-methyl-1- (4-methylthiophenyl) -2-morpholine-1-acetone and 2-isopropyl thioxanthone are used as photoinitiators which have an absorption effect on ultraviolet light at the wavelength of 250-400nm, so that the curing range of the pad printing ink is wide, mercury lamps, halogen lamps and light-emitting diode (LED) lamps can be used for curing, hyperbranched polyester acrylate used has low viscosity and very large functionality, and end groups have reactive groups, so that a certain viscosity reduction effect is achieved in the printing ink, the ink is beneficial to grinding and dispersion, and the printing ink can be rapidly cured due to the high functionality and reactive groups, the polyester acrylate has the characteristics of low odor and low irritation, and has good wettability and flexibility, so that the curing rate can be improved when the ink is used in color ink, meanwhile, the novolac epoxy acrylate used has the advantages of high benzene ring density, high rigidity, good heat resistance and good chemical resistance, so that the pad printing font of the pad printing ink is fine, the line width can reach 0.2mm, the RCA friction resistance can reach more than 45 times, the solvent used can play a role in diluting the ink and dissolving the initiator, and the ink residue on the surface of the rubber head is less than 10%, the ink transfer amount is high, and the font is clear and full after the rubber head is used for pad printing the font.
The parts which are not involved in the device are the same as or can be realized by the prior art, compared with the prior art, the curing range of the invention is wide, the curing can be realized by using a mercury lamp, a halogen lamp and an LED lamp, simultaneously, the pad printing font of the pad printing ink is fine, the line width can reach 0.2mm, the RCA friction resistance can reach more than 45 times, and after the printing ink is used for pad printing the font on a silica gel head, the residual quantity of the printing ink on the surface of the silica gel head is less than 10 percent, the transfer quantity of the printing ink is high, and the font is clear and full.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
an LED curing pad printing ink for plastic materials comprises a photoinitiator, an auxiliary initiator, a solvent, hyperbranched polyester acrylate, novolac epoxy acrylate, a defoaming agent, a dispersing agent, a pigment, a filler and a thickening agent.
The photoinitiator is 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, bis (2, 4, 6-trimethylbenzoyl) phenylphosphine oxide and 2-isopropyl thioxanthone, and the co-initiator is one of N, N-ethyl dimethyl benzoate, N-2-ethylhexyl dimethyl benzoate and dimethylaminoethyl benzoate.
The solvent includes esters or ketones such as butyl acetate, propylene glycol methyl ether acetate and cyclohexanone.
The defoaming agent is BYK-054;
the pigment is carbon black, and the carbon black is specifically Mitsubishi MA 11;
the dispersant is BYK-168;
the filler is barium sulfate, talcum powder and poly (tetrafluoroethylene) wax;
the thickener is in particular fumed silica.
The composition comprises the following components in parts by mass:
photoinitiator (2): 9 parts of (1);
solvent: 5 parts of a mixture;
hyperbranched polyester acrylate: 6 parts of (1);
polyester acrylate: 30 parts of (1);
phenolic epoxy acrylate: 10 parts of (A);
defoaming agent: 0.3 part;
dispersing agent: 5 parts of a mixture;
pigment: 5 parts of a mixture;
filling: 13 parts;
thickening agent: 0.8 part.
A preparation method of LED curing pad printing ink for plastic materials comprises the following steps:
s1: putting 9 parts of a mixed solution of 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide and 2-methyl-1- (4-methylthiophenyl) -2-morpholine-1-acetone into a batching barrel;
s2: adding 5 parts of butyl acetate into the solution obtained in the step S1, and stirring the mixture until the solution is free of particles;
s3: adding 6 parts of hyperbranched polyester acrylate, 30 parts of polyester acrylate and 10 parts of novolac epoxy acrylate in sequence in the step S2;
s4: stirring the mixed solution in the step S3, and uniformly mixing;
s5: adding 5 parts of dispersant BYK-168 to the step S4, and stirring;
s6: adding 5 parts of carbon black MA11 to the step S5, and stirring;
s7: grinding the mixed solution in the step S6 by using a grinder;
s8: adding 10 parts of barium sulfate, 3 parts of polyethylene wax, 0.8 part of fumed silica and 0.3 part of defoaming agent BYK-054 into the mixed solution obtained in the step S7 in sequence, and stirring;
s9: performing secondary grinding on the mixed solution in the step S8 by using a grinding machine;
s10: adding a mixed solvent of butyl acetate, propylene glycol methyl ether acetate and cyclohexanone into the step S9, and stirring;
s11: and filtering the mixed liquid in the step S10 to obtain the LED curing pad printing ink for the plastic material.
The stirring device in the manufacturing step is specifically a dispersion machine, and the rotating speed of the dispersion machine is 900 r/min.
The grinder in the step S7 and the step S9 is a three-roller grinder, and the grinding fineness is less than or equal to 5 mu.
The mesh number of the filter cloth in the step S11 is 300 meshes.
The photoinitiator used is 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide and 2-methyl-1- (4-methylthiophenyl) -2-morpholine-1-acetone, and the photoinitiator has an absorption effect on ultraviolet light at the wavelength of 400nm of 250-, can improve curing rate, it is big that phenolic epoxy acrylate through the use has benzene ring density simultaneously, the rigidity is big, the heat resistance is good, the good advantage of resistance to chemicals, thereby it is fine to make the bat printing typeface of this bat printing ink, the line width can reach 0.2mm, and resistant RCA friction can reach more than 45, can play the effect of diluting printing ink and dissolving initiator through the solvent that uses, thereby make the silica gel head after the bat printing typeface, the gluey head surface ink residue volume is less than 10%, the printing ink transfer volume is high, and the typeface is clear full.
Example 2:
an LED curing pad printing ink for plastic materials comprises a photoinitiator, an auxiliary initiator, a solvent, hyperbranched polyester acrylate, novolac epoxy acrylate, a defoaming agent, a dispersing agent, a pigment, a filler and a thickening agent.
The photoinitiator is a mixture of 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, bis (2, 4, 6-trimethylbenzoyl) phenylphosphine oxide and 2-isopropyl thioxanthone, and the auxiliary initiator is one of N, N-ethyl dimethyl benzoate, N-2-ethylhexyl dimethyl benzoate and dimethylaminoethyl benzoate.
The solvent includes esters or ketones such as butyl acetate, propylene glycol methyl ether acetate and cyclohexanone.
The defoaming agent is BYK-1790;
the pigment is carbon black, and the carbon black is Columbia Raven 410;
the dispersant is BYK-163;
the filler is calcium carbonate and poly (tetrafluoroethylene) wax;
the thickener is in particular fumed silica.
The composition comprises the following components in parts by mass:
photoinitiator (2): 12 parts of (1);
solvent: 6 parts of (1);
hyperbranched polyester acrylate: 8 parts of a mixture;
polyester acrylate: 25 parts of (1);
phenolic epoxy acrylate: 15 parts of (1);
defoaming agent: 0.3 part;
dispersing agent: 3 parts of a mixture;
pigment: 5 parts of a mixture;
filling: 15 parts of (1);
thickening agent: 0.7 part.
A preparation method of LED curing pad printing ink for plastic materials comprises the following steps:
s1: putting 12 parts of a mixed solution of 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, bis (2, 4, 6-trimethylbenzoyl) phenylphosphine oxide, 2-isopropylthioxanthone and ethyl N, N-dimethylbenzoate into a batching barrel;
s2: adding 5 parts of butyl acetate into the solution obtained in the step S1, and stirring the mixture until the solution is free of particles;
s3: adding 8 parts of hyperbranched polyester acrylate, 25 parts of polyester acrylate and 15 parts of novolac epoxy acrylate into the step S2 in sequence;
s4: stirring the mixed solution in the step S3, and uniformly mixing;
s5: adding 3 parts of dispersant BYK-163 into the step S4, and stirring;
s6: phase (to) step S5, 5 parts of carbon black Raven410 are added and stirred;
s7: grinding the mixed solution in the step S6 by using a grinder;
s8: adding 12 parts of calcium carbonate, 3 parts of polyethylene wax, 0.7 part of fumed silica and 0.3 part of defoaming agent BYK-1790 into the mixed solution obtained in the step S7 in sequence, and stirring;
s9: performing secondary grinding on the mixed solution in the step S8 by using a grinding machine;
s10: adding a mixed solvent of butyl acetate, propylene glycol monomethyl ether acetate and cyclohexanone into the step S9, and stirring;
s11: and filtering the mixed liquid in the step S10 to obtain the LED curing pad printing ink for the plastic material.
The stirring device in the manufacturing step is specifically a dispersion machine, and the rotating speed of the dispersion machine is 900 r/min.
The grinder in the step S7 and the step S9 is a three-roller grinder, and the grinding fineness is less than or equal to 5 mu.
The mesh number of the filter cloth in the step S11 is 300 meshes.
The photoinitiator used is 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, bis (2, 4, 6-trimethylbenzoyl) phenylphosphine oxide and 2-isopropylthioxanthone, and the photoinitiator has an absorption effect on ultraviolet light at the wavelength of 250-400nm, so that the pad printing ink has a wide curing range, can be cured by using a mercury lamp, a halogen lamp and an LED lamp, and the hyperbranched polyester acrylate used has low viscosity and very large functionality, and the end group has a reactive group, so that the viscosity reduction effect is realized in the ink, the ink is favorably ground and dispersed, the ink is rapidly cured by the higher functionality and the reactive group, the polyester acrylate has the characteristics of low odor and low irritation, and has good wettability and flexibility, so that the curing rate can be improved when the polyester acrylate is used in the ink, meanwhile, the novolac epoxy acrylate used has the advantages of high benzene ring density, high rigidity, high heat resistance and high chemical resistance, so that the pad printing font of the pad printing ink is fine, the line width can reach 0.2mm, the RCA friction resistance can reach more than 45 times, and the used solvent can play a role in diluting the printing ink and dissolving the initiator, so that the residual quantity of the printing ink on the surface of the rubber head is less than 10 percent after the printing font is pad-printed by the silica gel head, the transfer quantity of the printing ink is high, and the font is clear and full.
Example 3:
an LED curing pad printing ink for plastic materials comprises a photoinitiator, an auxiliary initiator, a solvent, hyperbranched polyester acrylate, novolac epoxy acrylate, a defoaming agent, a dispersing agent, a pigment, a filler and a thickening agent.
The photoinitiator is 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, bis (2, 4, 6-trimethylbenzoyl) phenylphosphine oxide, 2-isopropyl thioxanthone and N, N-dimethyl benzoic acid-2-ethylhexyl initiator, and the auxiliary initiator is one of N, N-dimethyl benzoic acid ethyl ester, N-dimethyl benzoic acid-2-ethylhexyl ester and benzoic acid dimethylamino ethyl ester.
The solvent includes butyl acetate, propylene glycol methyl ether acetate, cyclohexanone, and other esters or ketones.
The defoaming agent is BYK-A500;
the pigment is specifically titanium dioxide;
the dispersant is BYK-2008 specifically;
the filler is specifically talcum powder and poly (tetrafluoroethylene) wax;
the thickener is in particular fumed silica.
The composition comprises the following components in parts by mass:
photoinitiator (2): 10 parts of (A);
solvent: 5 parts of a mixture;
hyperbranched polyester acrylate: 7 parts;
polyester acrylate: 35 parts of (B);
phenolic epoxy acrylate: 8 parts of a mixture;
defoaming agent: 0.4 part;
dispersing agent: 4 parts of a mixture;
pigment: 25 parts of (1);
filling: 11 parts of (1);
thickening agent: 0.7 part.
A preparation method of LED curing pad printing ink for plastic materials comprises the following steps:
s1: putting 10 parts of a mixed solution of 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, bis (2, 4, 6-trimethylbenzoyl) phenylphosphine oxide, 2-isopropylthioxanthone and 2-ethylhexyl N, N-dimethylbenzoate into a batching barrel;
s2: adding 5 parts of butyl acetate into the solution obtained in the step S1, and stirring the mixture until the solution is free of particles;
s3: adding 7 parts of hyperbranched polyester acrylate, 35 parts of polyester acrylate and 8 parts of novolac epoxy acrylate in sequence in the step S2;
s4: stirring the mixed solution in the step S3, and uniformly mixing;
s5: adding 4 parts of dispersant BYK-2008 to the step S4, and stirring;
s6: phase (to) step S5, 25 parts of titanium dioxide was added and stirred;
s7: grinding the mixed solution in the step S6 by using a grinder;
s8: adding 8 parts of talcum powder, 3 parts of polyethylene wax, 0.7 part of fumed silica and 0.4 part of defoaming agent BYK-A500 into the mixed solution obtained in the step S7 in sequence, and stirring;
s9: performing secondary grinding on the mixed solution in the step S8 by using a grinding machine;
s10: adding a mixed solvent of butyl acetate, propylene glycol methyl ether acetate and cyclohexanone into the step S9, and stirring;
s11: and filtering the mixed liquid in the step S10 to obtain the LED curing pad printing ink for the plastic material.
The stirring device in the manufacturing step is specifically a dispersion machine, and the rotating speed of the dispersion machine is 900 r/min.
The grinder in the step S7 and the step S9 is a three-roller grinder, and the grinding fineness is less than or equal to 5 mu.
The mesh number of the filter cloth in the step S11 is 300 meshes.
The photoinitiator used is 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, bis (2, 4, 6-trimethylbenzoyl) phenylphosphine oxide and 2-isopropylthioxanthone, and the photoinitiator has an absorption effect on ultraviolet light at the wavelength of 250-400nm, so that the pad printing ink has a wide curing range, can be cured by using a mercury lamp, a halogen lamp and an LED lamp, and the hyperbranched polyester acrylate used has low viscosity and very large functionality, and the end group has a reactive group, so that the viscosity reduction effect is realized in the ink, the ink is favorably ground and dispersed, the ink is rapidly cured by the higher functionality and the reactive group, the polyester acrylate has the characteristics of low odor and low irritation, and has good wettability and flexibility, so that the curing rate can be improved when the polyester acrylate is used in the ink, meanwhile, the novolac epoxy acrylate used has the advantages of high benzene ring density, high rigidity, high heat resistance and high chemical resistance, so that the pad printing font of the pad printing ink is fine, the line width can reach 0.2mm, the RCA friction resistance can reach more than 45 times, and the used solvent can play a role in diluting the printing ink and dissolving the initiator, so that the residual quantity of the printing ink on the surface of the rubber head is less than 10 percent after the printing font is pad-printed by the silica gel head, the transfer quantity of the printing ink is high, and the font is clear and full.
According to the embodiment, 100 parts of finished products are respectively prepared by three transfer printing inks prepared from different components, then 50 parts of transfer printing inks prepared from three different component materials are respectively randomly extracted, the transfer printing inks are subjected to RCA (Rolling circle amplification) resistance test and cosmetic resistance test, and average data and sample data obtained after detection are shown in the following table:
through the experimental data, the RCA friction resistance of the pad printing ink disclosed by the invention can be up to more than 45 times, which is far beyond the RCA friction resistance of the pad printing ink in the prior art, and the hand cream is uniformly coated on the surface of the ink pattern layer, is baked for 24-48 hours at 60 ℃, and is subjected to an adhesion test, and the result shows that the adhesion reaches 5B, and no paint stripping phenomenon occurs when the pad printing ink is scraped by a nail.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The LED curing pad printing ink for the plastic material is characterized by comprising a photoinitiator, an auxiliary initiator, a solvent, hyperbranched polyester acrylate, novolac epoxy acrylate, a defoaming agent, a dispersing agent, a pigment, a filler and a thickening agent.
2. The LED curing pad printing ink for plastic materials as claimed in claim 1, wherein the photoinitiator is one or more selected from 2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide, bis (2, 4, 6-trimethylbenzoyl) phenylphosphine oxide, 2-methyl-1- (4-methylthiophenyl) -2-morpholine-1-one and 2-isopropyl thioxanthone, and the co-initiator is one selected from ethyl N, N-dimethyl benzoate, 2-ethylhexyl N, N-dimethyl benzoate and dimethylaminoethyl benzoate.
3. The LED curing pad printing ink for plastic materials as claimed in claim 1, wherein the solvent comprises esters such as butyl acetate, propylene glycol methyl ether acetate, cyclohexanone, etc. or ketones.
4. The LED curing pad printing ink for plastic materials as claimed in claim 1, wherein the pigment is one of titanium dioxide, aurora red, lithol scarlet, hansa yellow R, methyleneamine pigment yellow, permanent yellow, phthalocyanine blue, ultramarine blue, quinacridone violet and carbon black;
the carbon black is specifically one of Mitsubishi MA11, MA7, Chuntai AS-82, AS-99A, AS-45, Columbia Raven410, Raven420 and Raven 450.
5. The LED curing pad printing ink for plastic materials as claimed in claim 1, wherein the defoaming agent is one of BYK-054, BYK-066N, BYK-088, BYK-1790, BYK-A500 and SiFastSF 831;
the dispersing agent is specifically one of BYK-163, BYK-168 and BYK-2008;
the filler is one or more of calcium carbonate, barium sulfate, talcum powder and poly (tetrafluoroethylene) wax;
the thickener is one or more of fumed silica and organic bentonite.
6. The LED curing pad printing ink for the plastic materials as claimed in claim 1, wherein the components are composed of the following components in parts by mass:
photoinitiator (2): 8-12 parts;
solvent: 10-15 parts;
hyperbranched polyester acrylate: 5-10 parts;
polyester acrylate: 25-45 parts;
phenolic epoxy acrylate: 8-20 parts;
defoaming agent: 0.3-1 part;
dispersing agent: 2-5 parts;
pigment: 4-25 parts;
filling: 3-15 parts;
thickening agent: 0.5-1 part.
7. The preparation method of the LED curing pad printing ink for the plastic material is applied to the LED curing pad printing ink for the plastic material, which is characterized by comprising the following steps of:
s1: putting a photoinitiator into a batching barrel;
s2: adding a solvent into the solution obtained in the step S1, stirring the solution, and enabling the solution to be free of particles;
s3: sequentially adding hyperbranched polyester acrylate, polyester acrylate and novolac epoxy acrylate into the step S2;
s4: stirring the mixed solution in the step S3, and uniformly mixing;
s5: adding a dispersing agent into the step S4, and stirring;
s6: adding pigment in the phase step S5, and stirring;
s7: grinding the mixed solution in the step S6 by using a grinder;
s8: adding calcium carbonate as a filler, barium sulfate, talcum powder, wax powder, a dispersing agent and a thickening agent into the mixed solution obtained in the step S7 in sequence, and stirring;
s9: performing secondary grinding on the mixed solution in the step S8 by using a grinding machine;
s10: adding a solvent into the step S9, and stirring;
s11: and filtering the mixed liquid in the step S10 to obtain the LED curing pad printing ink for the plastic material.
8. The LED curing pad printing ink as claimed in claim 7, wherein the stirring device in the manufacturing step is a dispersion machine, and the rotation speed of the dispersion machine is 800-.
9. The LED curing pad printing ink for plastic materials as claimed in claim 7, wherein the grinder in steps S7 and S9 is a three-roll grinder, and the grinding fineness is less than or equal to 5 μ.
10. The LED curing pad printing ink for plastic materials as claimed in claim 7, wherein the filter cloth of step S11 has a mesh size of 300 meshes.
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