CN113444395A - White neutral ink for UV-LED ink-jet printing and preparation method thereof - Google Patents
White neutral ink for UV-LED ink-jet printing and preparation method thereof Download PDFInfo
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- CN113444395A CN113444395A CN202010212756.8A CN202010212756A CN113444395A CN 113444395 A CN113444395 A CN 113444395A CN 202010212756 A CN202010212756 A CN 202010212756A CN 113444395 A CN113444395 A CN 113444395A
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- acrylate
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- 230000007935 neutral effect Effects 0.000 title claims abstract description 35
- 238000007641 inkjet printing Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000000178 monomer Substances 0.000 claims abstract description 42
- 239000003085 diluting agent Substances 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 11
- 125000003368 amide group Chemical group 0.000 claims abstract description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 20
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 12
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 239000003381 stabilizer Substances 0.000 claims description 9
- 239000004408 titanium dioxide Substances 0.000 claims description 9
- 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 description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 claims description 6
- FSDNTQSJGHSJBG-UHFFFAOYSA-N piperidine-4-carbonitrile Chemical compound N#CC1CCNCC1 FSDNTQSJGHSJBG-UHFFFAOYSA-N 0.000 claims description 6
- 238000009736 wetting Methods 0.000 claims description 6
- 239000000080 wetting agent Substances 0.000 claims description 5
- -1 2- [ [ (butylamino) carbonyl ] oxy ] ethyl Chemical group 0.000 claims description 4
- FIHBHSQYSYVZQE-UHFFFAOYSA-N 6-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound C=CC(=O)OCCCCCCOC(=O)C=C FIHBHSQYSYVZQE-UHFFFAOYSA-N 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- 230000001588 bifunctional effect Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000007865 diluting Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- PSGCQDPCAWOCSH-UHFFFAOYSA-N (4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl) prop-2-enoate Chemical compound C1CC2(C)C(OC(=O)C=C)CC1C2(C)C PSGCQDPCAWOCSH-UHFFFAOYSA-N 0.000 claims description 3
- JWYVGKFDLWWQJX-UHFFFAOYSA-N 1-ethenylazepan-2-one Chemical compound C=CN1CCCCCC1=O JWYVGKFDLWWQJX-UHFFFAOYSA-N 0.000 claims description 3
- RZVINYQDSSQUKO-UHFFFAOYSA-N 2-phenoxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC1=CC=CC=C1 RZVINYQDSSQUKO-UHFFFAOYSA-N 0.000 claims description 3
- 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 description 3
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims description 3
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 3
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims description 3
- RKPILPRSNWEZJV-UHFFFAOYSA-N 1-morpholin-4-ylbutane-1,3-dione Chemical compound CC(=O)CC(=O)N1CCOCC1 RKPILPRSNWEZJV-UHFFFAOYSA-N 0.000 claims description 2
- YIJYFLXQHDOQGW-UHFFFAOYSA-N 2-[2,4,6-trioxo-3,5-bis(2-prop-2-enoyloxyethyl)-1,3,5-triazinan-1-yl]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCN1C(=O)N(CCOC(=O)C=C)C(=O)N(CCOC(=O)C=C)C1=O YIJYFLXQHDOQGW-UHFFFAOYSA-N 0.000 claims description 2
- GTELLNMUWNJXMQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical class OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCC(CO)(CO)CO GTELLNMUWNJXMQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- JRWNODXPDGNUPO-UHFFFAOYSA-N oxolane;prop-2-enoic acid Chemical compound C1CCOC1.OC(=O)C=C JRWNODXPDGNUPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000004383 yellowing Methods 0.000 claims description 2
- FWWXYLGCHHIKNY-UHFFFAOYSA-N 2-ethoxyethyl prop-2-enoate Chemical compound CCOCCOC(=O)C=C FWWXYLGCHHIKNY-UHFFFAOYSA-N 0.000 claims 1
- NSFGOWGWLHAJPC-UHFFFAOYSA-N COCOC.C(C=C)(=O)O Chemical compound COCOC.C(C=C)(=O)O NSFGOWGWLHAJPC-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 239000000758 substrate Substances 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 239000010985 leather Substances 0.000 abstract description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 abstract description 4
- 239000004926 polymethyl methacrylate Substances 0.000 abstract description 4
- 239000007779 soft material Substances 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 41
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- FTALTLPZDVFJSS-UHFFFAOYSA-N 2-(2-ethoxyethoxy)ethyl prop-2-enoate Chemical compound CCOCCOCCOC(=O)C=C FTALTLPZDVFJSS-UHFFFAOYSA-N 0.000 description 2
- WHNPOQXWAMXPTA-UHFFFAOYSA-N 3-methylbut-2-enamide Chemical compound CC(C)=CC(N)=O WHNPOQXWAMXPTA-UHFFFAOYSA-N 0.000 description 2
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000000711 cancerogenic effect Effects 0.000 description 2
- 231100000315 carcinogenic Toxicity 0.000 description 2
- 229920006150 hyperbranched polyester Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 1
- 235000014749 Mentha crispa Nutrition 0.000 description 1
- 244000078639 Mentha spicata Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- MZRQZJOUYWKDNH-UHFFFAOYSA-N diphenylphosphoryl-(2,3,4-trimethylphenyl)methanone Chemical compound CC1=C(C)C(C)=CC=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 MZRQZJOUYWKDNH-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- WKGDNXBDNLZSKC-UHFFFAOYSA-N oxido(phenyl)phosphanium Chemical compound O=[PH2]c1ccccc1 WKGDNXBDNLZSKC-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000004062 sedimentation 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
- C09D11/30—Inkjet printing inks
-
- 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
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/322—Pigment inks
Abstract
The invention discloses white neutral ink for UV-LED ink-jet printing and a preparation method thereof, wherein the white neutral ink for UV-LED ink-jet printing comprises the following components and formula: 2-15 wt% of resin, 55-70 wt% of diluent monomer A, 10-25 wt% of UV nano color paste, 5-15 wt% of photoinitiator and 0.1-5 wt% of auxiliary agent, wherein the sum of the percentages of the components is 100%; and at least one of the resin and the A, UV nanometer color paste has an amide group. The white neutral ink provided by the invention is green and environment-friendly, has good adhesive force, wide substrate application range, can be applied to substrates from soft materials such as leather and TPU to hard materials such as PC, ABS and PMMA, is not cracked after being repeatedly bent, has adjustable hardness, can have flexibility and hardness, and has the excellent characteristics of good fluency, low viscosity, scratch resistance, high covering degree and the like, and has excellent comprehensive performance.
Description
Technical Field
The invention relates to ink and a preparation method thereof, in particular to white neutral ink for UV-LED ink-jet printing and a preparation method thereof, and belongs to the technical field of ink.
Background
In the modern society, with more and more outdoor advertisements and intelligent devices, the advertisements and the intelligent devices are printed and decorated by ink-jet printing so as to meet personalized requirements. White inks are the most used inkjet inks. As a primer layer, the properties of the white ink directly affect the properties of the overall printed film.
In the conventional white ink, flexibility and hardness are spearmint, soft ink has good flexibility but insufficient hardness, hard ink has high hardness but poor flexibility, and neutral ink has hardness and flexibility. However, the domestic white neutral ink sold in the market at present contains a wide range of potential carcinogenic monomers such as N-vinyl pyrrolidone (NVP) or low-boiling-point volatile monomers such as dimethyl acrylamide (DMAA), which brings great potential safety hazards in the production and consumption processes, and meanwhile, the ink has poor compatibility of hardness and flexibility and a narrow range of used base materials.
Further, in conventional white inks, an organic solvent is generally used to increase the smoothness, and for example, a formulation of an inkjet white ink is disclosed in patent CN 105143365 a (publication No.) filed by toyoyo ink co. Along with the increasing attention on environmental protection, volatile organic solvents are added into products which are in contact with human bodies more, so that the products are not only uncomfortable in taste, but also greatly limited in environmental protection requirements.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide the white neutral ink for UV-LED ink-jet printing and the preparation method thereof, wherein the white neutral ink is green and environment-friendly, has a wide range of used substrates, has good flexibility and hardness, and has excellent comprehensive performance, so as to overcome the defects of the white neutral ink for UV-LED ink-jet printing.
In order to achieve the purpose, the invention adopts the following technical scheme:
a white neutral ink for UV-LED ink-jet printing comprises the following components and formula:
resin: 2-15 wt%;
diluting the monomer A: 55-70 wt%;
UV nanometer color paste: 10-25 wt%;
photoinitiator (2): 5-15 wt%;
auxiliary agent: 0.1-5 wt%;
the sum of the percentages of the components is 100 percent; wherein:
the diluent monomer A comprises at least one of a monofunctional monomer, a bifunctional monomer and a trifunctional monomer;
the UV nano color paste consists of 25-70 wt% of titanium dioxide, 20-70 wt% of diluent monomer B and stabilizer;
and at least one of the resin and the diluted monomer A, UV nanometer color paste contains an amide group.
In one embodiment, the resin is selected from at least one of urethane acrylate, polyether acrylate, polyester acrylate, and epoxy acrylate.
Preferably, the polyurethane acrylate is aromatic polyurethane acrylate; more preferably an aromatic urethane acrylate having a viscosity of 800 to 100000cp at 25 ℃, a functionality of 3 to 15 and a molecular weight of 500 to 3000g/mol, for example: CN9001, CN991, CN9893 and CN981 of Sadoma, UA-1100H, U-4HA of Xinzhongcun, FS3100W, FS4300 and YFS301 3010Z of Tanshun, and at least one of G4215, G4247, G4690 and G4312 of Rahn.
Preferably, the polyether acrylate is polyether acrylate with viscosity of 100-10000 cp at 25 ℃, functionality of 3-15 and molecular weight of 500-3000 g/mol, such as: at least one of G3480, G3497 and G3364 of Rahn.
Preferably, the polyester acrylate is hyperbranched polyester acrylate, more preferably hyperbranched polyester acrylate with viscosity of 100-10000 cp at 25 ℃, functionality of 3-15 and molecular weight of 500-3000 g/mol, such as: g x 3485 of Rahn, 6361-100 of Changxing, 9315Z of Nakuri, CN2302, CN2303 of Sadoma.
Preferably, the epoxy acrylate is a modified bisphenol A epoxy acrylate, more preferably a modified bisphenol A epoxy acrylate having a viscosity of 500 to 5000cp at 25 ℃, a functionality of 3 to 15 and a molecular weight of 500 to 3000g/mol, for example: at least one of G2255, G2263, G2235 from Rahn, FS1400Z from caldron, CN2003 from sartomer.
In one embodiment, the monofunctional monomer is selected from at least one of ethoxyethoxyethyl acrylate (EOEOEA), isobornyl acrylate (IBOA), cyclotrimethylolpropane formal acrylate (CTFA), tetrahydrofuran acrylate (THFA), 2-phenoxyethyl acrylate (2-PEA), 4-Acetoacetoylmorpholine (ACMO), N-vinyl caprolactam (NVC), and 2- [ [ (butylamino) carbonyl ] oxy ] ethyl acrylate (e.g., G1122 of Rahn).
In one embodiment, the difunctional monomer is selected from at least one of 1, 6-hexanediol diacrylate (HDDA), dipropylene glycol diacrylate (DPGDA), tripropylene glycol diacrylate (TPGDA), neopentyl glycol diacrylate (NPGDA), and propoxylated neopentyl glycol diacrylate (PONPGDA).
In one embodiment, the trifunctional is selected from at least one of trimethylolpropane triacrylate (TMPTA), ethoxylated trimethylolpropane triacrylate (EOTMPTA), pentaerythritol triacrylate (PETA), isocyanurate (TAIC), and tris (2-hydroxyethyl) isocyanurate triacrylate (thecta).
Preferably, the diluent monomer A comprises a monofunctional monomer, a bifunctional monomer and a trifunctional monomer, wherein the monofunctional monomer accounts for 30-50 wt% of the white neutral ink, the bifunctional monomer accounts for 15-35 wt% of the white neutral ink, and the trifunctional monomer accounts for 1-5 wt% of the white neutral ink.
Preferably, the component containing the amide group accounts for 8-25 wt% of the total weight of the white neutral ink.
In one embodiment, the particle size of the UV nanometer color paste is D50 less than 0.5 micron and D99 less than 0.9 micron.
One embodiment, the UV nanometer color paste has the following components and formula:
titanium dioxide: 25-70 wt%;
diluting the monomer B: 20-70 wt%;
dispersing agent: 3-15 wt%;
a stabilizer: 1-5 wt%;
the sum of the percentages of the components is 100 percent; wherein:
the diluent monomer B is a difunctional monomer B selected from at least one of 1, 6-hexanediol diacrylate (HDDA), propoxylated neopentyl glycol diacrylate (PONPGDA), dipropylene glycol diacrylate (DPGDA) and tripropylene glycol diacrylate (TPGDA).
As a preferred scheme, the titanium dioxide is rutile type (R type) titanium dioxide, such as: dupont brand R706 or R900 titanium dioxide.
Preferably, the dispersant is a wetting dispersant, has wetting and dispersing functions, can improve the dispersibility of the pigment and the stability of color paste and printing ink, is a wetting dispersant of polyurethane, polyester, polyacrylic acid or polyamide, and is more preferably a high molecular weight wetting dispersant with the weight average molecular weight of 1000-60000 (optimally 5000-30000) to improve the dispersion stability of the pigment so as to inhibit the sedimentation of the pigment; for example: the wetting and dispersing agent may be selected from at least one of 9130, 9131, 9132, 9150, 9151 of BYK JET series, 2205, 110, 111 of DISPER BYK series, 4701, 4733, 4414, 4063 of EFKA series of gasoline refining corporation, and most preferably at least one of 9150, 9151 of BYK JET series, 2205 of DISPER BYK series, 4414 of EFKA series.
Preferably, the stabilizer is a polymer-type stabilizer to inhibit adverse factors such as polymerization caused by free radicals generated due to external condition changes during storage and transportation, for example: any one selected from G16, G21 and G22 sold by Rahn company can improve stability during grinding and storage.
In one embodiment, the photoinitiator is an anti-yellowing photoinitiator, and more preferably at least one of 2,4,6 (trimethylbenzoyl) diphenylphosphine oxide (TPO), 1-hydroxycyclohexylphenylketone (184), and (bis-2, 4,6 trimethylbenzoyl) phenylphosphine oxide (819).
In one embodiment, the auxiliary agent is at least one of a defoaming agent, a leveling agent and a wetting agent.
Preferably, the defoaming agent is a polymer type defoaming agent to eliminate bubbles in inkjet printing and stirring and improve printing fluency, for example: selected from BYK1752, 1790, 1794;
2434. 2438 and (b) at least one of them.
Preferably, the wetting agent is a silicon-containing wetting agent to reduce surface tension, such as: can be selected from BYK377, 3500, 3510, 3505,
3221.
Preferably, the leveling agent is a silicon-containing leveling agent, such as: may be selected from BYK361N, 354, 381,
3236. 3239, 3299, 3258, 3259.
A method for preparing the white neutral ink for UV-LED ink-jet printing comprises the following steps:
uniformly stirring and mixing the resin, the diluent monomer and the photoinitiator in proportion; then adding the auxiliary agent with the proportion amount, and stirring to uniformly mix the auxiliary agent with the auxiliary agent; adding UV nano color paste with a certain proportion, and stirring to uniformly mix the UV nano color paste and the UV nano color paste; and finally, filtering by using a membrane to obtain the white neutral ink for UV-LED ink-jet printing.
In a preferred scheme, the filter membrane used for membrane filtration is a filter membrane with the thickness of 200-500 nm.
Compared with the prior art, the invention has the following remarkable beneficial effects:
the white neutral ink provided by the invention takes the resin, the diluent monomer A and the UV nano color paste as main bodies, and not only effectively improves the toughness of the ink by compounding the resin, the diluent monomer A and the UV nano color paste, so that the obtained ink is repeatedly bent and does not crack, the hardness is adjustable, the flexibility and the hardness can be realized, but also the crosslinking property of the ink and a base material is effectively improved, the adhesive force of the ink is effectively improved, the application range of the ink base material is wide, the ink can be applied to base materials from soft materials such as leather and TPU to hard materials such as PC, ABS and PMMA, and the ink also has the excellent characteristics of environmental protection, good fluency, low viscosity, scratch resistance, high covering degree and the like, and the comprehensive performance is excellent; in addition, the preparation process is economical and practical, the preparation process is simple, the cost is low, special equipment and harsh conditions are not needed, large-scale production is easy to realize, and the preparation method has high practical value.
Detailed Description
The technical scheme of the invention is further detailed and completely explained by combining the embodiment and the comparative example.
Examples
The white neutral inks of examples and comparative examples were prepared according to the components and ratios shown in table 1, and then the prepared white neutral inks were subjected to performance tests, the test data being shown in table 1, the viscosity of which was measured on Brookfield DV 2T; surface tension was tested on Sigma 702 ET; the hardness is tested by a standard pencil hardness tester; the scratch resistance is visually tested by using a nail; the adhesive force is tested by adopting a standard check method, and the base material is leather, TPU, PC board, PMMA, ABS and other materials; the fluency is detected for printing on the car sticker, and the number of the mouths is checked out.
The white neutral ink for UV-LED ink-jet printing can be sprayed and printed on leather, PC, TPU, PMMA, ABS and other materials, the application range is wide, when in use, the ink is firstly filled into a printer adopting a high-speed flux sprayer and then is sprayed and printed on a substrate, the ink can be cured on the substrate in time after passing through the sprayer of the printer, the use is convenient, simple and rapid, and the printer is provided with a UV-LED lamp with the luminous peak position wavelength of 350-420 nm.
TABLE 1 compositions and Properties of the white neutral inks of the examples and comparative examples
Note: in the table, the components of the UV nanometer color paste comprise 50 wt% of titanium dioxide (R706), 38 wt% of diluent monomer B (HDDA), 10 wt% of dispersant (EFKA4414) and 2 wt% of stabilizer (G16).
As can be seen from table 1: the white neutral ink provided by the invention has no carcinogenic monomer, low-boiling-point volatile monomer and organic solvent, is green and environment-friendly, is not cracked after being repeatedly bent, has adjustable hardness and good adhesive force, and also has the excellent characteristics of good fluency, low viscosity, scratch resistance and the like, and has excellent comprehensive performance.
Finally, it should be pointed out here that: the above is only a part of the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, and the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above description are intended to be covered by the present invention.
Claims (10)
1. The white neutral ink for UV-LED ink-jet printing is characterized by comprising the following components in percentage by weight:
resin: 2-15 wt%;
diluting the monomer A: 55-70 wt%;
UV nanometer color paste: 10-25 wt%;
photoinitiator (2): 5-15 wt%;
auxiliary agent: 0.1-5 wt%;
the sum of the percentages of the components is 100 percent; wherein:
the diluent monomer A comprises at least one of a monofunctional monomer, a bifunctional monomer and a trifunctional monomer;
the UV nano color paste consists of 25-70 wt% of titanium dioxide, 20-70 wt% of diluent monomer B and stabilizer;
and at least one of the resin and the diluted monomer A, UV nanometer color paste contains an amide group.
2. The white neutral ink for UV-LED inkjet printing according to claim 1, characterized in that: the resin is selected from at least one of urethane acrylate, polyether acrylate, polyester acrylate and epoxy acrylate.
3. The white neutral ink for UV-LED inkjet printing according to claim 1, characterized in that: the monofunctional monomer is at least one selected from ethoxy ethyl acrylate, isobornyl acrylate, cyclotrimethylolpropane methylal acrylate, tetrahydrofuran acrylate, 2-phenoxyethyl acrylate, 4-acetoacetyl morpholine, N-vinyl caprolactam and 2- [ [ (butylamino) carbonyl ] oxy ] ethyl acrylate.
4. The white neutral ink for UV-LED inkjet printing according to claim 1, characterized in that: the difunctional monomer is selected from at least one of 1, 6-hexanediol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, neopentyl glycol diacrylate and propoxylated neopentyl glycol diacrylate.
5. The white neutral ink for UV-LED inkjet printing according to claim 1, characterized in that: the trifunctional is at least one selected from trimethylolpropane triacrylate, ethoxylated trimethylolpropane triacrylate, pentaerythritol triacrylate, isocyanurate and tris (2-hydroxyethyl) isocyanurate triacrylate.
6. The white neutral ink for UV-LED inkjet printing according to claim 1, characterized in that: the particle size of the UV nanometer color paste is D50 less than 0.5 micron, and D99 less than 0.9 micron.
7. The white neutral ink for UV-LED inkjet printing according to claim 1, wherein the UV nano color paste has the following composition and formula:
titanium dioxide: 25-70 wt%;
diluting the monomer B: 20-70 wt%;
dispersing agent: 3-15 wt%;
a stabilizer: 1-5 wt%;
the sum of the percentages of the components is 100 percent; wherein:
the diluent monomer B is a difunctional monomer B, and the difunctional monomer B is selected from at least one of 1, 6-hexanediol diacrylate, propoxylated neopentyl glycol diacrylate, dipropylene glycol diacrylate and tripropylene glycol diacrylate.
8. The white neutral ink for UV-LED inkjet printing according to claim 1, characterized in that: the titanium dioxide is rutile titanium dioxide, the dispersing agent is a wetting dispersing agent, the stabilizing agent is a polymer type stabilizing agent, and the photoinitiator is an anti-yellowing photoinitiator.
9. The white neutral ink for UV-LED inkjet printing according to claim 1, characterized in that: the auxiliary agent is at least one of a defoaming agent, a leveling agent and a wetting agent.
10. A method of preparing the white neutral ink for UV-LED inkjet printing according to claim 1, comprising the steps of:
uniformly stirring and mixing the resin, the diluent monomer and the photoinitiator in proportion; then adding the auxiliary agent with the proportion amount, and stirring to uniformly mix the auxiliary agent with the auxiliary agent; adding UV nano color paste with a certain proportion, and stirring to uniformly mix the UV nano color paste and the UV nano color paste; and finally, filtering by using a membrane to obtain the white neutral ink for UV-LED ink-jet printing.
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| CN114773905A (en) * | 2022-04-15 | 2022-07-22 | 华南理工大学 | White UV/thermal dual-curing FPC inkjet character ink and preparation method thereof |
| CN115785729A (en) * | 2022-10-27 | 2023-03-14 | 苏州市贝特利高分子材料股份有限公司 | Multipurpose UV-LED photocuring high-coverage screen printing ink and preparation method thereof |
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