CN102702855B - UV (Ultraviolet) offset printing ink and preparation method thereof - Google Patents
UV (Ultraviolet) offset printing ink and preparation method thereof Download PDFInfo
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Abstract
The invention relates to UV (Ultraviolet) offset printing ink which comprises the following components by weight: 10-20% of pigment, 30-35% of polyester acrylic resin, 15-20% of UV highly-branched polyester acrylic resin, 10-20% of acrylic ester monomer, 5-10% of photoinitiator, 0.5-3% of polymerization inhibitor, 5-20% of filler and 0.2-3% of aid. A preparation method of the UV highly-branched polyester acrylic resin comprises the following steps: preparing UV highly-branched polyester through a ring opening polymerization reaction of methyl tetrahydrophthalic anhydride and glycidol by a one-step method, wherein the number average molar weight of the polyester is 1,500-2,500, and the branching degree is 0.45-0.72; and then modifying the UV highly-branched polyester by using methacrylic acid glycidyl ester to synthesize the highly-branched polyester acrylic resin. The invention aims to provide the UV offset printing ink which has the advantages of low cost, easy synthesis, good resin wetting dispersion and excellent branch reproduction performance and is suitable for high-speed printing.
Description
Technical field:
The present invention relates to printing-ink field, specifically, relate to a kind of UV flexographic ink that is suitable for high speed printing.
Background technology:
UV flexographic ink is to pass through action of UV radiation, rely on the free radical or the positively charged ion that after light trigger absorbed radiation energy, form, trigger monomer and oligopolymer generation polymerization, crosslinked and graft reaction, form the high molecular polymer of crosslinked tridimensional network and realize dry solidification.Most UV flexographic ink is made up of epoxy acrylic resin, polyurethane acrylic resin, polyester acrylic resin, acrylate monomer, light trigger, filler and pigment dyestuff.Because UV flexographic ink has the incomparable advantage of traditional oil-based ink, more and more cause the generally attention of printing industry, be widely used in the field in many ways such as tobacco bale, Jiu Bao, cosmetic package, drug packaging, pressure-sensitive adhesive trade mark.
Tradition UV flexographic ink is owing to will taking into account pigment wettability, so multiselect uses unsaturated polyester resin and epoxy acrylic resin as matrix resin, but such resin drying speed is limited, and ink thixotropy is inadequate, and skeleton is bad, is difficult to be suitable for high speed printing.Also there is the high official of indivedual uses can polyurethane acrylic resin, but high cost, and resin wetted dispersiveness is not very good, specifically implements more difficult.
Summary of the invention:
The object of this invention is to provide a kind of cost low, easily the UV flexographic ink that is suitable for high speed printing of synthetic, resin wetted good dispersity and dot reproduction superior performance.
UV flexographic ink, is characterized in that, comprises by weight percentage following component:
The preparation method of the high branched polyester acrylic resin of described UV is as follows: by the ring-opening polymerization of methyl tetrahydro phthalic anhydride and R-GLYCIDOL, single stage method is prepared the high branched polyester of UV, the mumber average molar mass of polyester is 1500-2500, the degree of branching is between 0.45-0.72, use again the high branched polyester of glycidyl methacrylate modification UV, the synthetic high branched polyester acrylic resin of UV.
Auxiliary agent described above is one or more in flow agent, dispersion agent, wetting agent, smooth agent.
Flow agent described above is UV flow agent, and described dispersion agent is UV dispersion agent, and described smooth agent is ink dedicated defoamer moral modest 6800.
Pigment described above is one or more in pigment dyestuff or mineral dye.
Polyester acrylic resin binder described above is one or more in epoxy acrylic resin, polyalcohol modified epoxy acrylic resin, fatty acid modified epoxy acrylic resin, polyester acrylic urethane resin, polyether-modified acrylated polyurethane resin, fatty acid modified acrylated polyurethane resin resin.
Acrylate monomer described above is one or more in simple function group acrylate monomer, multi-functional acrylate's monomer, simple function group methacrylate monomer, polyfunctional group methacrylate monomer.
Acrylate monomer described above is 1,6 hexanediyl ester.
Light trigger described above is one or more in even acyl ketal derivatives, acylphosphine oxide, amine alkyl phenones; described filler is a kind of in calcium carbonate, silicon-dioxide, wax powder or two kinds; described stopper is para benzoquinone; p-ten.-butylcatechol, one or more in methylene blue.
As the further improvement project of the present invention, UV flexographic ink, comprises following component by weight percentage:
Described polyester acrylic resin is tetramethylol methane tetraacrylate UV resin, and described acrylate monomer is 1,6 hexanediyl ester, and described stopper is para benzoquinone, and described auxiliary agent is wetting dispersing agent 7710.The UV flexographic ink of this programme is for high speed rotary press and high speed lithography offset press, and print speed can reach 220m/min and 22000/h.
The preparation method of UV flexographic ink as above, is characterized in that comprising the steps:
(1) first polyester acrylic resin binder, the high branched polyester acrylate of UV, acrylate monomer, stopper, auxiliary agent, light trigger are mixed, disperse until all dissolvings are prepared into work in-process A through homogenizer;
(2) on the basis of work in-process A, add pigment, filler, fully stir until work in-process B is made in tentatively dispersion;
(3) work in-process B is fully ground on three-roller, be ground to ink and reach the fineness of regulation;
(4) product tinning.
The present invention compared with prior art, has the following advantages:
1, the high branched polyester acrylic resin of UV of the present invention is high dense low sticky, adds in flexographic ink and improves curing speed, and pigment wettability is good simultaneously, fully meets the demand of high speed printing.
2, UV flexographic ink of the present invention, be applicable to that high speed printing, production cost are low, resin wetted good dispersity and dot reproduction superior performance, it goes for high speed rotary press and high speed lithography offset press, and print speed can reach 180m/min and 20000/h.
3, synthetic route of the present invention is simple, and production cost is relatively low, and suitability is strong, can be widely used in lottery ticket, bill, books of all sorts, newspaper, comprise tobacco bale etc., greatly accelerates print speed, and print quality is unaffected simultaneously.
Embodiment
Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.As nothing specializes, the raw material in embodiment is commercial.Wherein the pigment such as blue or green orchid of fuchsin, phthalein, diarylide yellow is the production of vapour Bagong department, black smoke is that Degussa is produced, light triggers 907,1173 etc. are the production of Hua Tai company, tetramethylol methane tetraacrylate UV resin provides for German Kening Co.,Ltd, HDDA monomer diluent (1,6 hexanediyl esters) provide for U.S.'s Sartomer, 7710 dispersion machines are that German EFKA (EFKA) provides, para benzoquinone is commercially available industrial goods, calcium carbonate is the chemical industry supply of Zhong Shan Yongfeng, and silicon-dioxide is that Ying Chuan company produces.The raw material that the synthetic high branched polyester acrylic resin of UV is selected: methyl tetrahydro phthalic anhydride, glycidyl methacrylate, R-GLYCIDOL are commercially available industrial goods.
Embodiment 1～4
One, get the raw materials ready: the weight percent batching with the each component shown in table 1:
Table 1
| Embodiment 1. | Embodiment 2. | Embodiment 3. | Embodiment 4. | |
| Fuchsin | 20 | |||
| Phthalein is blue or green blue | 20 | |||
| Diarylide yellow | 20 | |||
| Black smoke | 13 | |||
| The high branched polyester acrylic resin of UV | 15 | 17 | 20 | 20 |
| Tetramethylol methane tetraacrylate UV resin | 35 | 33 | 30 | 35 |
| Light trigger 907 | 4 | 4 | 4 | 7 |
| Light trigger 1173 | 3 | 3 | 3 | 3 |
| Wetting dispersing agent 7710 | 2 | 2 | 2 | 3 |
| Para benzoquinone | 1 | 1 | 1 | 1 |
| Calcium carbonate | 8 | 8 | 8 | 6 |
| Silicon-dioxide | 2 | 2 | 2 | 2 |
| HDDA monomer diluent | 10 | 10 | 10 | 10 |
By the ring-opening polymerization of methyl tetrahydro phthalic anhydride and R-GLYCIDOL, single stage method is prepared the high branched polyester of UV, the mumber average molar mass of polyester is 1500-2500, the degree of branching is between 0.45-0.72, use again the high branched polyester of glycidyl methacrylate modification UV, the synthetic high branched polyester acrylic resin of UV.
Two, preparation UV flexographic ink:
(1) first tetramethylol methane tetraacrylate UV resin, the high branched polyester acrylate of UV, HDDA monomer diluent, para benzoquinone, wetting dispersing agent 7710, light trigger are mixed, disperse until all dissolvings are prepared into work in-process A through homogenizer;
(2) on the basis of work in-process A, add pigment, filler, fully stir until work in-process B is made in tentatively dispersion;
(3) work in-process B is fully ground on three-roller, be ground to ink and reach the fineness of regulation;
(4) product tinning.
Three, product beta test and detection:
1, use high speed rotary press printing, speed is 200m/min, and the printing product surface under ultraviolet high voltage mercury lamp radiation of the paper after printed is dry.Lines are smooth, the full marking good attachment of image.Printing color is full, and svelteness is thoroughly dry, can reach printing requirement.
Each embodiment all prepares respectively the product of each embodiment with reference to above-mentioned steps, same condition print speed can reach respectively 200,200,220,180m/min.
2, with the printing of high speed lithographic offset printing machine, speed is 22000/h, and the paper printing product surface under ultraviolet high voltage mercury lamp radiation after printed is dry.Lines are smooth, and the full marking good attachment of image, can reach printing requirement.
Each embodiment all prepares respectively the product of each embodiment with reference to above-mentioned steps, same condition print speed can reach respectively 20000,20000,22000,18000/h.
Embodiment 5～8
One, get the raw materials ready: the weight percent batching with the each component shown in table 2:
Table 2
| Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 | |
| Fuchsin | 20 | |||
| Phthalein is blue or green blue | 20 | |||
| Diarylide yellow | 20 | |||
| Black smoke | 15 | |||
| The high branched polyester acrylic resin of UV | 20 | 17 | 15 | 15 |
| Epoxy acrylic resin | 30 | 33 | 35 | 35 |
| Light trigger 907 | 4 | 4 | 4 | 7 |
| Light trigger 1173 | 3 | 3 | 3 | 3 |
| Wetting dispersing agent 7710 | 2 | 2 | 2 | 3 |
| Para benzoquinone | 1 | 1 | 1 | 1 |
| Calcium carbonate | 8 | 8 | 8 | 6 |
| Silicon-dioxide | 2 | 2 | 2 | 2 |
| HDDA monomer diluent | 10 | 10 | 10 | 13 |
By the ring-opening polymerization of methyl tetrahydro phthalic anhydride and R-GLYCIDOL, single stage method is prepared the high branched polyester of UV, the mumber average molar mass of polyester is 1500-2500, the degree of branching is between 0.45-0.72, use again the high branched polyester of glycidyl methacrylate modification UV, the synthetic high branched polyester acrylic resin of UV.
Two, preparation UV flexographic ink:
(1) first epoxy acrylic resin, the high branched polyester acrylate of UV, HDDA monomer diluent, para benzoquinone, wetting dispersing agent 7710, light trigger are mixed, disperse until all dissolvings are prepared into work in-process A through homogenizer;
(2) on the basis of work in-process A, add pigment, filler, fully stir until work in-process B is made in tentatively dispersion;
(3) work in-process B is fully ground on three-roller, be ground to ink and reach the fineness of regulation;
(4) product tinning.
Three, product beta test and detection:
1, use high speed rotary press printing, speed is 200m/min, and the printing product surface under ultraviolet high voltage mercury lamp radiation of the paper after printed is dry.Lines are smooth, the full marking good attachment of image.Printing color is full, and svelteness is thoroughly dry, can reach printing requirement.
Other experimental group are prepared respectively the product of each experimental group with reference to above-mentioned steps, same condition print speed can reach respectively 220,200,200,180m/min.
2, with the printing of high speed lithographic offset printing machine, speed is 22000/h, and the paper printing product surface under ultraviolet high voltage mercury lamp radiation after printed is dry.Lines are smooth, and the full marking good attachment of image, can reach printing requirement.
Other experimental group are prepared respectively the product of each experimental group with reference to above-mentioned steps, same condition print speed can reach respectively 20000,20000,20000,18000/h.
Comparative example 1～4
Formula is in table 3, and preparation method is the same.
Table 3
| Comparative example 1. | Comparative example 2. | Comparative example 3. | Comparative example 4. | |
| Fuchsin (57:1) | 20 | |||
| Phthalein blue or green blue (15:3) | 20 | |||
| Diarylide yellow | 20 | |||
| Black smoke | 15 | |||
| High branched polyester acrylic resin | 10 | 7 | 5 | 5 |
| Tetramethylol methane tetraacrylate UV resin | 40 | 43 | 45 | 50 |
| Light trigger 907 | 4 | 4 | 4 | 7 |
| Light trigger 1173 | 3 | 3 | 3 | 3 |
| Wetting dispersing agent 7710 | 2 | 2 | 2 | 3 |
| Para benzoquinone | 1 | 1 | 1 | 1 |
| Calcium carbonate | 8 | 8 | 8 | 6 |
| Silicon-dioxide | 2 | 2 | 2 | 2 |
| HDDA monomer diluent | 10 | 10 | 10 | 8 |
Product beta test and detection:
1, use high speed rotary press printing, speed is 200m/min, and the printing product surface under ultraviolet high voltage mercury lamp radiation of the paper after printed is dry.More difficult inking, and rate of drying does not catch up with.Printing color is more shallow, cannot reach printing requirement.
Other experimental group are prepared respectively the product of each experimental group with reference to above-mentioned steps, same condition print speed only reaching respectively 120,100,100,100m/min.
2, with the printing of high speed lithographic offset printing machine, speed is 22000/h, and the paper printing product surface under ultraviolet high voltage mercury lamp radiation after printed is dry.Sharpness of dots is inadequate, cannot be dried, and cannot reach printing requirement.
Other experimental group are prepared respectively the product of each experimental group with reference to above-mentioned steps, same condition print speed is only to reach respectively 6000,6000,6000,4800/h.
Claims (1)
1.UV flexographic ink, is characterized in that, comprises by weight percentage following component:
Described pigment is diarylide yellow, described polyester acrylic resin is tetramethylol methane tetraacrylate UV resin, described acrylate monomer is 1,6 hexanediyl esters, described stopper is para benzoquinone, the light trigger 907 that described smooth light lead agent is 4% and 3% light light lead are sent out agent 1173 and are mixed, and the calcium carbonate that described filler is 8% and 2% silicon-dioxide mix;
Wherein, the preparation method of the high branched polyester acrylic resin of described UV is as follows: by the ring-opening polymerization of methyl tetrahydro phthalic anhydride and R-GLYCIDOL, single stage method is prepared high branched polyester, the mumber average molar mass of polyester is 1500-2500, the degree of branching is between 0.45-0.72, use again glycidyl methacrylate modified poly ester, the synthetic high branched polyester acrylic resin of UV;
The preparation method of described UV flexographic ink, comprises the steps:
(1) first polyester acrylic resin, the high branched polyester acrylate of UV, acrylate monomer, stopper, auxiliary agent, light trigger are mixed, disperse until all dissolvings are prepared into work in-process A through homogenizer;
(2) on the basis of work in-process A, add pigment, filler, fully stir until work in-process B is made in tentatively dispersion;
(3) work in-process B is fully ground on three-roller, be ground to ink and reach the fineness of regulation;
(4) product tinning.
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| CN201210220658.4A CN102702855B (en) | 2012-06-28 | 2012-06-28 | UV (Ultraviolet) offset printing ink and preparation method thereof |
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Families Citing this family (10)
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| CN103666069A (en) * | 2013-11-25 | 2014-03-26 | 铜陵方正塑业科技有限公司 | Ultraviolet light cured printing ink with good adhesive attraction and toughness and preparation method thereof |
| CN103666074B (en) * | 2013-11-29 | 2016-04-27 | 当涂县科辉商贸有限公司 | A kind of safety and environmental protection UV curable ink and preparation method thereof |
| CN103666116B (en) * | 2013-12-06 | 2015-06-03 | 上海德粼水性油墨有限公司 | Black offset printing ink capable of generating red fluorescence under UV irradiation |
| CN105802326A (en) * | 2014-12-30 | 2016-07-27 | 天津天女化工集团股份有限公司 | UV offset printing colored ink for label printing |
| US9751326B2 (en) * | 2015-02-12 | 2017-09-05 | Xerox Corporation | Hyperbranched ink compositions for controlled dimensional change and low energy curing |
| CN104789037A (en) * | 2015-03-27 | 2015-07-22 | 桐城市新丰彩印包装有限公司 | Printing ink |
| CN110053409A (en) * | 2019-04-26 | 2019-07-26 | 苏州镓祥新材料科技有限公司 | A kind of high rigidity, resistant to pollution color coating printed metal sheet |
| CN112011214A (en) * | 2020-09-04 | 2020-12-01 | 苏州工业园区彩迪包装印刷有限公司 | Offset printing ultraviolet curing scratch-resistant oil and production process thereof |
| CN113072837A (en) * | 2021-03-31 | 2021-07-06 | 中山市中益油墨涂料有限公司 | UV-LED two-piece can high-flexibility offset printing ink and preparation method thereof |
| CN115491077B (en) * | 2022-09-21 | 2023-09-15 | 武汉易锦包装印务有限公司 | Quick-drying high-stability printing ink and preparation method thereof |
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| CN101560348A (en) * | 2009-05-25 | 2009-10-21 | 王景泉 | Ultraviolet light curing offset printing ink and preparation method thereof |
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