CN112898814A - Preparation method of high-flexibility offset printing ink - Google Patents
Preparation method of high-flexibility offset printing ink Download PDFInfo
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- CN112898814A CN112898814A CN202110225235.0A CN202110225235A CN112898814A CN 112898814 A CN112898814 A CN 112898814A CN 202110225235 A CN202110225235 A CN 202110225235A CN 112898814 A CN112898814 A CN 112898814A
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- 238000007645 offset printing Methods 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000003756 stirring Methods 0.000 claims abstract description 33
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003381 stabilizer Substances 0.000 claims abstract description 19
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000000178 monomer Substances 0.000 claims abstract description 17
- GJMPSRSMBJLKKB-UHFFFAOYSA-N 3-methylphenylacetic acid Chemical compound CC1=CC=CC(CC(O)=O)=C1 GJMPSRSMBJLKKB-UHFFFAOYSA-N 0.000 claims abstract description 16
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004593 Epoxy Substances 0.000 claims abstract description 16
- FCSHMCFRCYZTRQ-UHFFFAOYSA-N N,N'-diphenylthiourea Chemical compound C=1C=CC=CC=1NC(=S)NC1=CC=CC=C1 FCSHMCFRCYZTRQ-UHFFFAOYSA-N 0.000 claims abstract description 16
- YDKNBNOOCSNPNS-UHFFFAOYSA-N methyl 1,3-benzoxazole-2-carboxylate Chemical compound C1=CC=C2OC(C(=O)OC)=NC2=C1 YDKNBNOOCSNPNS-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 16
- 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 16
- 229940117957 triethanolamine hydrochloride Drugs 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000000227 grinding Methods 0.000 claims abstract description 15
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011787 zinc oxide Substances 0.000 claims abstract description 15
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 14
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 14
- 239000012860 organic pigment Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000005119 centrifugation Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 25
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 12
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 11
- 239000006185 dispersion Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000000265 homogenisation Methods 0.000 claims description 7
- 239000004135 Bone phosphate Substances 0.000 claims description 6
- 244000028419 Styrax benzoin Species 0.000 claims description 6
- 235000000126 Styrax benzoin Nutrition 0.000 claims description 6
- 235000008411 Sumatra benzointree Nutrition 0.000 claims description 6
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 6
- 229960002130 benzoin Drugs 0.000 claims description 6
- 235000019382 gum benzoic Nutrition 0.000 claims description 6
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- -1 photoinitiator Substances 0.000 claims description 6
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 5
- ZRMMVODKVLXCBB-UHFFFAOYSA-N 1-n-cyclohexyl-4-n-phenylbenzene-1,4-diamine Chemical compound C1CCCCC1NC(C=C1)=CC=C1NC1=CC=CC=C1 ZRMMVODKVLXCBB-UHFFFAOYSA-N 0.000 claims description 2
- 238000007639 printing Methods 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 42
- 239000003963 antioxidant agent Substances 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention provides a preparation method of high-flexibility offset printing ink, and relates to the technical field of printing ink processing. The high-flexibility offset printing ink is prepared from the following raw materials: methyl methacrylate, trimethylolpropane triacrylate, epoxy acrylate, an epoxy silicone monomer, neopentyl glycol diacrylate, an organic pigment, a photoinitiator, diphenylthiourea, 2, 6-di-tert-butyl-p-methylphenol, triethanolamine hydrochloride, a stabilizer, nano titanium dioxide, diatomite, nano zinc oxide, wax powder and an anti-aging agent; the preparation method mainly comprises the steps of water bath mixing, homogenizing centrifugation, stirring and mixing, grinding and dispersing and the like. The UV printing ink drying device overcomes the defects of the prior art, improves the flexibility of the printing ink while ensuring the drying efficiency of the UV printing ink, and is convenient for printing various materials.
Description
Technical Field
The invention relates to the technical field of ink processing, in particular to a preparation method of high-flexibility offset printing ink.
Background
UV ink refers to ink that is formed into a film and dried by polymerizing monomers in an ink vehicle into polymers using ultraviolet light of different wavelengths and energies under ultraviolet irradiation. UV inks also belong to the group of inks, as they must possess brilliant color (except in special cases), good printability, and suitable curing drying rates. Meanwhile, the paint has good adhesive force and has the characteristics of wear resistance, corrosion resistance, weather resistance and the like.
With the development of science and technology, various performances of the UV ink are greatly improved; however, for printing in special packaging industries such as cigarette packets and plastic films, the ink needs to have higher flexibility besides ensuring ink balance, viscosity and drying efficiency, so that the improvement of the flexibility of the UV ink is an important development direction in the ink field.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the preparation method of the high-flexibility offset printing ink, which can ensure the drying efficiency of the UV printing ink, improve the flexibility of the printing ink and facilitate the printing of various materials.
In order to achieve the above purpose, the technical scheme of the invention is realized by the following technical scheme:
the high-flexibility offset printing ink is prepared from the following raw materials in parts by weight: 18-22 parts of methyl methacrylate, 10-12 parts of trimethylolpropane triacrylate, 6-12 parts of epoxy acrylate, 2-4 parts of epoxy silicone monomer, 2-3 parts of neopentyl glycol diacrylate, 2-4 parts of organic pigment, 4-6 parts of photoinitiator, 1-1.4 parts of diphenylthiourea, 1-3 parts of 2, 6-di-tert-butyl-p-methylphenol, 1.6-1.8 parts of triethanolamine hydrochloride, 1-3 parts of stabilizer, 2-4 parts of nano titanium dioxide, 2-6 parts of diatomite, 1-3 parts of nano zinc oxide, 1-2 parts of wax powder and 1-2 parts of anti-aging agent.
Preferably, the photoinitiator is a mixture of benzoin dimethyl ether and alpha-dimethoxy-alpha-phenylacetophenone in a mass ratio of 2: 1.
Preferably, the stabilizer is a mixture of lead maleate tribasic and di-n-butyltin dilaurate in a mass ratio of 1: 1.
Preferably, the antioxidant is any one or combination of antioxidant A, antioxidant D, antioxidant AW and antioxidant CPPD.
The preparation method of the high-flexibility offset printing ink comprises the following steps:
(1) sequentially adding trimethylolpropane triacrylate, epoxy acrylate and epoxy silicone monomer into the methyl methacrylate, uniformly stirring in a water bath environment at 45-50 ℃, and standing for a period of time to obtain a mixed base material for later use;
(2) mixing diatomite, nano zinc oxide and nano titanium dioxide, adding deionized water, performing ultrasonic homogenization, centrifuging in a centrifuge, placing the centrifugal precipitate in a dryer, and drying to obtain a mixed filler for later use;
(3) adding neopentyl glycol diacrylate, diphenyl thiourea, 2, 6-di-tert-butyl-p-methylphenol and triethanolamine hydrochloride into the mixed base material, and uniformly stirring the mixture in a stirring kettle to obtain a processing base material for later use;
(4) adding organic pigment, stabilizer, photoinitiator, wax powder, anti-aging agent and mixed filler into the processing base material, uniformly stirring, and then placing the mixture into a grinding dispersion machine for dispersion grinding to obtain the high-flexibility offset printing ink.
Preferably, the stirring time of the water bath in the step (1) is 15-20min, the stirring speed is 50-80r/min, and the standing time is 50-60 min.
Preferably, the ultrasonic homogenization time in the step (2) is 10-15min, the homogenization temperature is 80-90 ℃, the rotation speed of the centrifugation is 4200r/min, and the centrifugation time is 5-8 min.
Preferably, the rotation speed of the stirring in the step (3) is 600-800r/min, and the stirring time is 25-60 min.
Preferably, the particle size of the material after dispersion grinding in the step (4) is less than 5 μm.
The invention provides a preparation method of high-flexibility offset printing ink, which has the following advantages compared with the prior art:
(1) according to the invention, methyl methacrylate, trimethylolpropane triacrylate, epoxy acrylate and epoxy silicone monomer are mixed to form the base material of the ink, so that the ductility and flexibility of the ink are improved while the viscosity of the ink is effectively ensured;
(2) the neopentyl glycol diacrylate, the diphenyl thiourea, the 2, 6-di-tert-butyl-p-methylphenol, the triethanolamine hydrochloride and other substances are added, so that the viscosity of the ink can be further improved, and the flexibility can be improved;
(3) according to the invention, the nano zinc oxide, the nano titanium dioxide and the diatomite are mixed, added with water, stirred, dispersed and then centrifuged, so that the nano zinc oxide, the nano titanium dioxide and the diatomite are effectively combined, and the uniformity and the stability of the printing ink in the later period are improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the high-flexibility offset printing ink is prepared from the following raw materials in parts by weight: 18 parts of methyl methacrylate, 10 parts of trimethylolpropane triacrylate, 6 parts of epoxy acrylate, 2 parts of epoxy silicone monomer, 2 parts of neopentyl glycol diacrylate, 2 parts of organic pigment, 4 parts of photoinitiator, 1 part of diphenylthiourea, 1 part of 2, 6-di-tert-butyl-p-methylphenol, 1.6 parts of triethanolamine hydrochloride, 1 part of stabilizer, 2 parts of nano titanium dioxide, 2 parts of diatomite, 1 part of nano zinc oxide, 1 part of wax powder and 1 parts of anti-aging agent A.
Wherein the photoinitiator is a mixture of benzoin dimethyl ether and alpha-dimethoxy-alpha-phenylacetophenone with the mass ratio of 2: 1; the stabilizer is a mixture of lead maleate tribasic and di-n-butyltin dilaurate in a mass ratio of 1: 1.
The preparation method of the high-flexibility offset printing ink comprises the following steps:
(1) sequentially adding trimethylolpropane triacrylate, epoxy acrylate and epoxy silicone monomer into the methyl methacrylate, stirring at the rotating speed of 50r/min for 15min in a water bath environment at the temperature of 45 ℃, standing for 50min, and obtaining a mixed base material for later use;
(2) mixing diatomite, nano zinc oxide and nano titanium dioxide, adding deionized water, ultrasonically homogenizing at 80 ℃ for 10min, centrifuging in a centrifuge at the rotating speed of 4200r/min for 5min, taking the centrifugal precipitate, and drying in a dryer to obtain a mixed filler for later use;
(3) adding neopentyl glycol diacrylate, diphenyl thiourea, 2, 6-di-tert-butyl-p-methylphenol and triethanolamine hydrochloride into the mixed base material, and stirring the mixture in a stirring kettle at the rotating speed of 600r/min for 25min to obtain a processing base material for later use;
(4) adding organic pigment, stabilizer, photoinitiator, wax powder, anti-aging agent and mixed filler into the processing base material, uniformly stirring, and then placing the mixture into a grinding dispersion machine for dispersing and grinding until the particle size of the material is less than 5 mu m to obtain the high-flexibility offset printing ink.
Example 2:
the high-flexibility offset printing ink is prepared from the following raw materials in parts by weight: 22 parts of methyl methacrylate, 12 parts of trimethylolpropane triacrylate, 12 parts of epoxy acrylate, 4 parts of epoxy silicone monomer, 3 parts of neopentyl glycol diacrylate, 4 parts of organic pigment, 6 parts of photoinitiator, 1.4 parts of diphenylthiourea, 3 parts of 2, 6-di-tert-butyl-p-methylphenol, 1.8 parts of triethanolamine hydrochloride, 3 parts of stabilizer, 4 parts of nano titanium dioxide, 6 parts of diatomite, 3 parts of nano zinc oxide, 2 parts of wax powder and 2 parts of anti-aging agent A.
Wherein the photoinitiator is a mixture of benzoin dimethyl ether and alpha-dimethoxy-alpha-phenylacetophenone with the mass ratio of 2: 1; the stabilizer is a mixture of lead maleate tribasic and di-n-butyltin dilaurate in a mass ratio of 1: 1.
The preparation method of the high-flexibility offset printing ink comprises the following steps:
(1) sequentially adding trimethylolpropane triacrylate, epoxy acrylate and epoxy silicone monomer into the methyl methacrylate, stirring at the rotating speed of 80r/min for 20min in a water bath environment at 50 ℃, and standing for 60min to obtain a mixed base material for later use;
(2) mixing diatomite, nano zinc oxide and nano titanium dioxide, adding deionized water, ultrasonically homogenizing at 90 ℃ for 15min, centrifuging in a centrifuge at the rotating speed of 4200r/min for 5-8min, taking the centrifugal precipitate, and drying in a dryer to obtain a mixed filler for later use;
(3) adding neopentyl glycol diacrylate, diphenyl thiourea, 2, 6-di-tert-butyl-p-methylphenol and triethanolamine hydrochloride into the mixed base material, and stirring the mixture in a stirring kettle at the rotating speed of 800r/min for 60min to obtain a processing base material for later use;
(4) adding organic pigment, stabilizer, photoinitiator, wax powder, anti-aging agent and mixed filler into the processing base material, uniformly stirring, and then placing the mixture into a grinding dispersion machine for dispersing and grinding until the particle size of the material is less than 5 mu m to obtain the high-flexibility offset printing ink.
Example 3:
the high-flexibility offset printing ink is prepared from the following raw materials in parts by weight: 20 parts of methyl methacrylate, 11 parts of trimethylolpropane triacrylate, 9 parts of epoxy acrylate, 3 parts of epoxy silicone monomer, 2.5 parts of neopentyl glycol diacrylate, 3 parts of organic pigment, 5 parts of photoinitiator, 1.2 parts of diphenylthiourea, 2 parts of 2, 6-di-tert-butyl-p-methylphenol, 1.7 parts of triethanolamine hydrochloride, 2 parts of stabilizer, 3 parts of nano titanium dioxide, 4 parts of diatomite, 2 parts of nano zinc oxide, 1.5 parts of wax powder and 1.5 parts of anti-aging agent A.
Wherein the photoinitiator is a mixture of benzoin dimethyl ether and alpha-dimethoxy-alpha-phenylacetophenone with the mass ratio of 2: 1; the stabilizer is a mixture of lead maleate tribasic and di-n-butyltin dilaurate in a mass ratio of 1: 1.
The preparation method of the high-flexibility offset printing ink comprises the following steps:
(1) sequentially adding trimethylolpropane triacrylate, epoxy acrylate and epoxy silicone monomer into the methyl methacrylate, stirring at the rotating speed of 60r/min for 20min in a water bath environment at 45 ℃, and standing for 55min to obtain a mixed base material for later use;
(2) mixing diatomite, nano zinc oxide and nano titanium dioxide, adding deionized water, performing ultrasonic homogenization at 85 ℃ for 13min, centrifuging in a centrifuge at the rotating speed of 4200r/min for 5min, taking the centrifugal precipitate, and drying in a dryer to obtain a mixed filler for later use;
(3) adding neopentyl glycol diacrylate, diphenyl thiourea, 2, 6-di-tert-butyl-p-methylphenol and triethanolamine hydrochloride into the mixed base material, and stirring the mixture in a stirring kettle at the rotating speed of 800r/min for 40min to obtain a processing base material for later use;
(4) adding organic pigment, stabilizer, photoinitiator, wax powder, anti-aging agent and mixed filler into the processing base material, uniformly stirring, and then placing the mixture into a grinding dispersion machine for dispersing and grinding until the particle size of the material is less than 5 mu m to obtain the high-flexibility offset printing ink.
Comparative example 1:
the high-flexibility offset printing ink is prepared from the following raw materials in parts by weight: 20 parts of methyl methacrylate, 11 parts of trimethylolpropane triacrylate, 9 parts of epoxy acrylate, 3 parts of epoxy silicone monomer, 2.5 parts of neopentyl glycol diacrylate, 3 parts of organic pigment, 5 parts of photoinitiator, 1.2 parts of diphenylthiourea, 2 parts of 2, 6-di-tert-butyl-p-methylphenol, 1.7 parts of triethanolamine hydrochloride, 2 parts of stabilizer, 3 parts of nano titanium dioxide, 4 parts of diatomite, 2 parts of nano zinc oxide, 1.5 parts of wax powder and 1.5 parts of anti-aging agent A.
Wherein the photoinitiator is a mixture of benzoin dimethyl ether and alpha-dimethoxy-alpha-phenylacetophenone with the mass ratio of 2: 1; the stabilizer is a mixture of lead maleate tribasic and di-n-butyltin dilaurate in a mass ratio of 1: 1.
The preparation method of the high-flexibility offset printing ink comprises the following steps:
(1) sequentially adding trimethylolpropane triacrylate, epoxy acrylate and epoxy silicone monomer into the methyl methacrylate, stirring at the rotating speed of 60r/min for 20min in a water bath environment at 45 ℃, and standing for 55min to obtain a mixed base material for later use;
(3) adding neopentyl glycol diacrylate, diphenyl thiourea, 2, 6-di-tert-butyl-p-methylphenol and triethanolamine hydrochloride into the mixed base material, and stirring the mixture in a stirring kettle at the rotating speed of 800r/min for 40min to obtain a processing base material for later use;
(4) adding organic pigment, stabilizer, photoinitiator, wax powder, anti-aging agent, diatomite, nano zinc oxide, nano titanium dioxide and mixed filler into the processing base material, uniformly stirring, and then placing the mixture into a grinding dispersion machine for dispersing and grinding until the particle size of the material is less than 5 mu m, thus obtaining the high-flexibility offset printing ink.
And (3) detection:
by adopting the formulation and preparation process of the materials shown in the above example 3, epoxy acrylate, epoxy silicone monomer, neopentyl glycol diacrylate, diphenylthiourea, 2, 6-di-tert-butyl-p-methylphenol, triethanolamine hydrochloride and the like were selectively added, as shown in the following table 1 (wherein "-" indicates no addition, and "√" indicates addition):
table 1:
the inks obtained in examples 1 to 3 and comparative example 1 and the above-mentioned control groups 1 to 8 were tested for viscosity at 25 c, and each ink group was printed on undercoated white but plain iron, and then irradiated with an ultraviolet lamp to be completely dried, and subjected to a check test, a punching test (using a punching tester to determine an impact force when the ink cracks after drying), and a bending elongation test, and the results are shown in table 2 below:
TABLE 2
The above table shows that the ink obtained by the invention has good flexibility, and the addition of epoxy acrylate, epoxy silicone monomer, neopentyl glycol diacrylate, diphenyl thiourea, 2, 6-di-tert-butyl-p-methyl phenol, triethanolamine hydrochloride and other substances can effectively improve the performance of the ink.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The high-flexibility offset printing ink is characterized by being prepared from the following raw materials in parts by weight: 18-22 parts of methyl methacrylate, 10-12 parts of trimethylolpropane triacrylate, 6-12 parts of epoxy acrylate, 2-4 parts of epoxy silicone monomer, 2-3 parts of neopentyl glycol diacrylate, 2-4 parts of organic pigment, 4-6 parts of photoinitiator, 1-1.4 parts of diphenylthiourea, 1-3 parts of 2, 6-di-tert-butyl-p-methylphenol, 1.6-1.8 parts of triethanolamine hydrochloride, 1-3 parts of stabilizer, 2-4 parts of nano titanium dioxide, 2-6 parts of diatomite, 1-3 parts of nano zinc oxide, 1-2 parts of wax powder and 1-2 parts of anti-aging agent.
2. A high flexibility flexographic ink according to claim 1, characterized in that: the photoinitiator is a mixture of benzoin dimethyl ether and alpha-dimethoxy-alpha-phenylacetophenone in a mass ratio of 2: 1.
3. A high flexibility flexographic ink according to claim 1, characterized in that: the stabilizer is a mixture of lead maleate tribasic and di-n-butyltin dilaurate in a mass ratio of 1: 1.
4. A high flexibility flexographic ink according to claim 1, characterized in that: the anti-aging agent is any one or combination of anti-aging agent A, anti-aging agent D, anti-aging agent AW and anti-aging agent CPPD.
5. A preparation method of high-flexibility offset printing ink is characterized by comprising the following steps: the preparation method of the high-flexibility offset printing ink comprises the following steps:
(1) sequentially adding trimethylolpropane triacrylate, epoxy acrylate and epoxy silicone monomer into the methyl methacrylate, uniformly stirring in a water bath environment at 45-50 ℃, and standing for a period of time to obtain a mixed base material for later use;
(2) mixing diatomite, nano zinc oxide and nano titanium dioxide, adding deionized water, performing ultrasonic homogenization, centrifuging in a centrifuge, placing the centrifugal precipitate in a dryer, and drying to obtain a mixed filler for later use;
(3) adding neopentyl glycol diacrylate, diphenyl thiourea, 2, 6-di-tert-butyl-p-methylphenol and triethanolamine hydrochloride into the mixed base material, and uniformly stirring the mixture in a stirring kettle to obtain a processing base material for later use;
(4) adding organic pigment, stabilizer, photoinitiator, wax powder, anti-aging agent and mixed filler into the processing base material, uniformly stirring, and then placing the mixture into a grinding dispersion machine for dispersion grinding to obtain the high-flexibility offset printing ink.
6. The method of claim 5, wherein the offset ink comprises: the stirring time of the water bath in the step (1) is 15-20min, the stirring speed is 50-80r/min, and the standing time is 50-60 min.
7. The method of claim 5, wherein the offset ink comprises: the ultrasonic homogenization time in the step (2) is 10-15min, the homogenization temperature is 80-90 ℃, the centrifugation rotating speed is 4200r/min, and the centrifugation time is 5-8 min.
8. The method of claim 5, wherein the offset ink comprises: the rotating speed of stirring in the step (3) is 600-800r/min, and the stirring time is 25-60 min.
9. The method of claim 5, wherein the offset ink comprises: the particle size of the materials after the dispersion grinding in the step (4) is less than 5 mu m.
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| CN107286740A (en) * | 2017-07-20 | 2017-10-24 | 洋紫荆油墨(中山)有限公司 | A kind of UV LED offset inks and preparation method thereof |
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| CN101338096A (en) * | 2008-08-11 | 2009-01-07 | 深圳市美丽华油墨涂料有限公司 | UV curing offset printing ink and use |
| CN103666067A (en) * | 2013-11-25 | 2014-03-26 | 铜陵方正塑业科技有限公司 | Flexible UV curing offset printing ink and preparation method |
| CN103788759A (en) * | 2014-01-27 | 2014-05-14 | 繁昌县朱氏印务有限责任公司 | Screen printing UV (Ultraviolet) ink |
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Application publication date: 20210604 |