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WO2006041003A1 - Composition d’encre pour jet d’encre vulcanisable par rayon d’énergie - Google Patents

Composition d’encre pour jet d’encre vulcanisable par rayon d’énergie Download PDF

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Publication number
WO2006041003A1
WO2006041003A1 PCT/JP2005/018530 JP2005018530W WO2006041003A1 WO 2006041003 A1 WO2006041003 A1 WO 2006041003A1 JP 2005018530 W JP2005018530 W JP 2005018530W WO 2006041003 A1 WO2006041003 A1 WO 2006041003A1
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WIPO (PCT)
Prior art keywords
ink composition
parts
pigment
curable inkjet
acrylate
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PCT/JP2005/018530
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English (en)
Japanese (ja)
Inventor
Katsuyuki Kito
Nagayuki Takao
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Maxell Ltd
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Hitachi Maxell Ltd
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Publication of WO2006041003A1 publication Critical patent/WO2006041003A1/fr
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    • 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

Definitions

  • the present invention relates to an energy ray curable inkjet ink composition, that is, a type of ink composition printed on a recording medium by an ink jet method and cured by irradiation with energy rays, particularly an ultraviolet ray curable type.
  • the present invention relates to an inkjet ink composition.
  • the ink jet recording system is a recording system in which liquid ink is ejected toward a nozzle force recording medium using pressure, heat, electric field or the like as a driving source.
  • Such a recording method has recently been expanded since it can obtain high-quality printed matter with low running cost and can use various inks such as water-based ink and oil-based ink.
  • the inkjet image forming method can obtain the same image quality as the silver halide photographic method at a very low cost, so it is not suitable for applications such as large posters that require a large image area. There are significant economic benefits.
  • an ultraviolet curable ink composition of a type that is cured by irradiation with an energy line in a specific wavelength region, in particular, irradiation with ultraviolet rays (UV) is known.
  • This ultraviolet curable ink composition contains, as main components, for example, an ultraviolet curable monomer, a pigment or dye as a colorant, a photopolymerization initiator, and the like, and may contain various additives as necessary. .
  • this UV curable ink composition usually exceeds 35 mPa's at 25 ° C.
  • the viscosity of the ink must be 35 mPa's or less, and preferably 20 mPa's or less.
  • an ultraviolet curable ink composition that is diluted with a volatile organic solvent such as ethyl lactyl or butyl acetate together with an ultraviolet curable monomer, a colorant, and a photopolymerization initiator.
  • a volatile organic solvent such as ethyl lactyl or butyl acetate
  • a VOC volatile organic
  • the volatilization of the (compound) may cause deterioration of the work environment and natural environment, and the diluted solvent in the ink composition may evaporate in the nozzles of the printer head, causing ink clogging. If the diluted solvent remains, the film physical properties of the printed matter may be deteriorated, and in particular, the adhesion of the recording medium to the substrate may be deteriorated.
  • an ink for ink jet recording containing a predetermined amount of a specific attaire toy compound.
  • the photopolymerization initiator is 5% by weight in the total ink composition and does not contain any force, so there is a risk of causing a curing failure that is insufficiently cured at the time of low energy one-light curing.
  • the problem of the present invention is that it is not diluted with a diluting solvent, and is! /, Has low viscosity even without heating, storage stability, and pigment dispersibility when the colorant is a pigment. Good, excellent in continuous ejection stability to recording media, satisfactory curability during printing, and good print quality even for non-absorbing recording media. It is an object to provide an energy line curable ink composition for inkjet which has excellent adhesion to the ink.
  • the present inventors have found that the above-mentioned problem is to use a monofunctional monomer exhibiting a low viscosity at room temperature as a diluting monomer and use a highly crosslinkable polyfunctional monomer in combination. And the present invention has been completed. That is, the present invention contains a colorant, a monofunctional monomer having a viscosity of 0.5 to 6 mPa's at 25 ° C., a polyfunctional monomer, and a photopolymerization initiator, and is diluted with a diluent solvent.
  • An energy line curable ink composition for inkjet wherein the monofunctional monomer is 30 to 90% by weight and the polyfunctional monomer is 10 to 50% by weight based on the total weight of the ink composition. %, A photopolymerization initiator in an amount of 6 to 20% by weight, and the viscosity of the entire ink composition is 3 to 35 mPa's at 25 ° C.
  • an ultraviolet curable ink composition for inkjet is provided.
  • the polyfunctional monomer is trifunctional or higher and the viscosity of the entire ink composition is 3 to 20 mPa ⁇ s at 25 ° C.
  • two or more kinds of photopolymerization initiators are used.
  • the photopolymerization initiator 2-methyl 1 [4- (methylthio) phenol] 2 morpholinopropane 1-one and at least one selected from among thixanthones are used. A compound.
  • the colorant is an organic pigment or Z and an inorganic pigment, and preferably the amount of the organic pigment or Z and the inorganic pigment is 1 to 10% by weight based on the total weight of the ink composition. %.
  • the ink composition contains a polymer compound as a pigment dispersant, preferably in an amount of 5 to 150% by weight based on the total weight of the ink composition.
  • the ink composition has a surface tension of 20 to 40 mNZm at 25 ° C.
  • the energy ray-curable inkjet ink composition has a specific amount of a specific monofunctional monomer, a polyfunctional monomer, and a photopolymerization initiator, and is diluted with a diluent solvent. Even without heating or heating, the viscosity of the ink composition is low. Storage stability is good, and when the colorant is a pigment, the pigment dispersibility is good, and the continuous ejection stability to the recording medium is excellent. In addition, it satisfies the curability during printing and provides good print quality even for non-absorbent recording media, and particularly excellent adhesion to a recording medium substrate.
  • a monofunctional monomer having a viscosity of 0.5 to 6 mPa ′s at 25 ° C., more preferably 0.6 to 5 mPa ′s, is used as the diluting monomer.
  • Such monofunctional monomers By using the ink composition, an ink composition having a low viscosity at room temperature can be obtained without being diluted with a diluting solvent or heated.
  • a (meth) acrylate monomer is preferably used as the monofunctional monomer having a viscosity of 0.5 to 6 mPa's at 25 ° C.
  • a (meth) acrylate monomer is preferably used as the monofunctional monomer having a viscosity of 0.5 to 6 mPa's at 25 ° C.
  • (meth) acrylate means acrylate and Z or metatalate.
  • (meth) acrylate monomers include butyl (meth) acrylate, isobutyl (meth) acrylate, isoamyl (meth) acrylate, octyl (meth) acrylate, isooctyl (meth) acrylate, isono -Alkyl (meth) acrylates such as ru (meth) acrylate, decyl (meth) acrylate and lauryl (meth) acrylate are included.
  • butoxychetyl (meth) acrylate isobornyl (meth) acrylate, 2-ethylhexyl-diglycol (meth) acrylate, tetrahydrofurfuryl (meth) acrylate, 2-hydroxyethyl (meta) ) Atallate, 2-hydroxypropyl (meth) ate, etc. can also be used.
  • alkoxy (poly) propylene glycol (meth) acrylate, such as ethoxytripropylene glycol (meth) acrylate and methoxy polypropylene glycol (meth) acrylate alkoxy (poly) propylene glycol (meth) acrylate, such as ethoxytripropylene glycol (meth) acrylate and methoxy polypropylene glycol (meth) acrylate.
  • (meth) acrylate monomers can be used alone or as a mixture of two or more. Can be used. Of these, isooctyl acrylate and isononyl acrylate are particularly preferred.
  • the amount of such a monofunctional monomer used is 30 to 90% by weight, preferably 40 to 80% by weight, based on the total weight of the ink composition. If it is less than 30% by weight, it is difficult to sufficiently reduce the viscosity of the ink composition, and if it exceeds 90% by weight, it is difficult to satisfy the curability by irradiation with energy lines such as ultraviolet rays.
  • a bifunctional or higher polyfunctional monomer preferably a trifunctional or higher polyfunctional monomer, more preferably a trifunctional or tetrafunctional monomer is used together with the above monofunctional monomer.
  • a polyfunctional monomer By using such a polyfunctional monomer, it can be quickly cured by irradiation with ultraviolet rays or the like during printing.
  • difunctional acrylate monomers include neopentyl glycol di (meth) hydroxylate, polytetramethylene glycol di (meth) acrylate, trimethylolpropane (meth) acrylic acid benzoate, diethylene glycol di ( (Meth) acrylate, triethylene glycol di (meth) acrylate, tetraethylene glycol di (meth) acrylate, polyethylene glycol (200) di (meth) acrylate, polyethylene glycol (400) di (meth) acrylate, Polyethylene glycol (600) di (meth) acrylate, polyethylene glycol (1000) di (meth) acrylate, dipropylene glycol di (meth) acrylate, tripropylene glycol di (meth) acrylate, polypropylene Cole (400) di (meth) acrylate, Polypropylene glycol (700) Di (meth) acrylate, Neopentyl alcohol diol (meth) acrylate, 1,3-butan
  • trifunctional monomers include trimethylolpropane tri (meth) acrylate, force prolatatone modified trimethylol propane tri (meth) acrylate, ethylene oxide modified trimethylol propane tri (meth) acrylate, penta Erythritol tri (meth) attalylate, glyce
  • examples thereof include phosphopropoxy tri (meth) acrylate.
  • tetrafunctional monomers include pentaerythritol tetra (meth) acrylate, ditrimethylolpropane tetra (meth) acrylate, pentaerythritol ethoxytetra (meth) acrylate, force prolataton modified dipentaerythritol hexa (meta ) Atarirate.
  • examples of the pentafunctional or higher functional monomer include dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, and force prolatatam modified dipentaerythritol hexa (meth) acrylate. .
  • polyfunctional monomers can be used alone or as a mixture of two or more.
  • dipentaerythritol pentaatalylate and dipentaerythritol hexaacrylate are particularly preferably used.
  • such polyfunctional monomer is used in an amount of 10 to 50% by weight, preferably 20 to 40% by weight, based on the total weight of the ink composition. If it is less than 10% by weight, it is difficult to satisfy the curability by irradiation with energy rays such as ultraviolet rays, and if it exceeds 50% by weight, it is difficult to sufficiently reduce the viscosity of the ink composition.
  • the ink composition of the present invention contains a photopolymerization initiator.
  • a photopolymerization initiator Any conventionally known initiator can be used as the photopolymerization initiator.
  • photopolymerization initiators include aryl alkyl ketones, oxime ketones, acyl phosphine oxides, acyl phosphonates, thiobenzoic acid S phenol, titanocene, aromatic ketones, thixanthones, benzyl, quinone derivatives, keto derivatives. Includes coumarins.
  • the photopolymerization initiator include bis (2, 4, 6 trimethylbenzoyl) -phenol phosphine oxide, 1-hydroxymonocyclohexyl monophenyl monoketone, 2-methyl- 1 [4 (Methylthio) phenol] 2 morpholinopropane 1-one, 2-hydroxy-2-methyl-1-phenol-propane 1-one, 2-benzyl-2-dimethylamino-1-- (4 morpholinophenol) 1 Butanone 1, 2, 2 Dimethoxy 1, 2, 2 Diphenol 1-one, 1, 2-Octanedione 1 [4- (phenolthio) 1 2- (o benzoyl oxime)], Bis (2, 6 dimethoxybenzoyl) -1,2,4,4 trimethyl monopentylphosphine oxide, 2, 4, 6 trimethylbenzoyl monophosphine oxide, 2, 4— Examples thereof include jetylthioxanthone, 2-chlorothixanthone, isopropylthixanthone, and [
  • photopolymerization initiators can be used alone or as a mixture of two or more.
  • a photopolymerization initiator containing at least 2 methyl 1 [4 (methylthio) phenol] 2 morpholinopropane 1one and a compound selected from thixanthones is particularly preferably used.
  • the amount of such a photopolymerization initiator used is 6 to 20% by weight, preferably 10 to 15% by weight, based on the total weight of the ink composition. If it is less than 6% by weight, curing by irradiation with energy rays such as ultraviolet rays is not sufficiently performed, and if it exceeds 20% by weight, unreacted components remain and the print quality is deteriorated.
  • various known dyes can be used as the colorant, but from the viewpoint of light resistance, it is desirable to use inorganic pigments or Z and organic pigments.
  • These pigments are usually used in a ratio of 1 to: LO wt%, preferably 2 to 7 wt%, more preferably 3 to 6 wt%, based on the total weight of the ink composition. If the amount of the pigment is too small, if the coloring power is too large, the viscosity of the ink composition increases, and the fluidity of the ink composition tends to be impaired.
  • pigment derivatives having a dialkylaminoalkyl group pigment derivatives having a dialkylaminoalkylsulfonic acid amide group, and the like are preferably used.
  • Inorganic pigments include titanium oxide, zinc white, zinc oxide, tripone, iron oxide, aluminum oxide, silicon dioxide, kaolinite, montmorillonite, talc, barium sulfate, calcium carbonate, silica, Alumina, Cadmium Red, Red, Molybdenum Red, Chromium Vermillion, Molybdate Orange, Yellow Lead, Chrome Yellow, Cadmium Yellow, Yellow Iron Oxide, Titan Yellow, Chromium Oxide, Pyridian, Cobalt Green, Titanium Cobalt Green, Cobalt Chromium There are green, ultramarine blue, ultramarine blue, bitumen, cobalt blue, cerulean blue, manganese violet, cobalt violet, and my power.
  • Organic pigments include azo, azomethine, polyazo, phthalocyanine, quinacridone, anthraquinone, indigo, thioindigo, quinophthalone, benzimidazolone And isoindoline pigments are used. Also, carbon black having acidic, neutral or basic carbon power is used. Further, hollow particles of crosslinked acrylic resin can also be used as a pigment.
  • Examples of the pigment in the cyan ink composition include CI pigment blue 1, 2, 3, 15: 3, 15: 4, 16, 22, 60, and the like. Among these, at least one selected from C. I. Pigment Blue 15: 3 and 15: 4 is particularly preferable in terms of weather resistance, coloring power, and the like.
  • As pigments in the magenta ink composition CI pigment red 5, 7, 12, 48 (C a), 48 (Mn), 57 (Ca), 57: 1, 112, 122, 123, 168, 184, 202 209, 254, CI Pigment Violet 19 and the like.
  • at least one selected from C. I. Pigment Red 122, 202, 209, 254, and C. I. Pigment Neuy Age 19 is preferred due to weather resistance, coloring power, and the like.
  • CI pigment yellow 74, 83, 109, 110, 120, 128, 138, 139, 150, 151, 154, 155, 213, 214 are selected from the viewpoint of weather resistance, etc. I prefer at least one.
  • Pigments in the black ink composition include HCF, MCF, RCF, LFF, SCF manufactured by Mitsubishi Chemical Corporation, Monarch manufactured by Cabot, Regal, Degussa 'Color Black manufactured by Huls, Special Black, and Print Tex, Toka Black manufactured by Tokai Carbon Co., and Raven manufactured by Colombia.
  • the energy ray-curable inkjet ink composition of the present invention includes the above-described colorant, a monofunctional monomer having a viscosity of 0.5 to 6 mPa's at 25 ° C, a polyfunctional monomer having two or more functions, and light. It contains a polymerization initiator and is diluted with a diluent solvent.
  • diluent solvent not diluted with a diluent solvent means that it does not contain any diluent solvent or is volatile. Even if an organic solvent is contained as an impurity, it means that the amount of volatilization is kept to a very small amount without deteriorating the working environment and the natural environment.
  • Diluting solvent means an organic solvent having a boiling point usually in the range of 50 to 200 ° C.
  • organic solvent having a boiling point usually in the range of 50 to 200 ° C.
  • lactate esters acetate esters, propionate esters, butyrate esters, (poly) ethylene glycol ethers.
  • Various known organic solvents such as ketone, cyclohexane, toluene and xylene are included.
  • the energy ray curable inkjet ink composition of the present invention can be prepared by various methods, but when a pigment is used as a colorant, it is preferably prepared by the following method. First, a pigment and a part of the monofunctional monomer, which is a diluting monomer, are premixed, and a container drive medium mill such as a ball mill, a centrifugal mill, and a planetary ball mill, a high-speed rotating mill such as a sand mill, and a stirring tank mill The mixture is stirred and mixed with a simple dispersing machine such as a medium stirring mill or a disperser to make a primary dispersion.
  • a container drive medium mill such as a ball mill, a centrifugal mill, and a planetary ball mill
  • a high-speed rotating mill such as a sand mill
  • a stirring tank mill The mixture is stirred and mixed with a simple dispersing machine such as a medium stirring mill or a disperser to make a primary
  • the remaining monofunctional monomer, the above-mentioned polyfunctional monomer, which is a highly crosslinkable monomer, and a photopolymerization initiator are added to this primary dispersion, and three-one motor, magnetic stirrer, disperser, homogenizer is added. Mix evenly using a simple stirrer. You may mix using mixers, such as a line mixer. Further, for the purpose of making the precipitated particles finer, they may be mixed using a disperser such as a bead mill or a high-pressure jet mill.
  • the pigment dispersant has excellent affinity with the pigment and has a function of stabilizing the dispersion.
  • the pigment dispersant an ionic or nonionic surfactant or a ionic, cationic or nonionic polymer compound is used.
  • a polymer compound particularly a polymer compound containing a cationic group or a cation group is preferred.
  • the pigment dispersant contains at least one of a cationic basic cation group that is a pigment adsorption site in order to stabilize dispersion by an acid-base interaction between the pigment and the dispersant. It is desirable to adjust the type and amount of the cationic group and cation group in the dispersant depending on the type of pigment desired.
  • pigment dispersants include SOLSPERSE manufactured by Lubrizol and D manufactured by Bicchemi.
  • ISPERBY EFKA manufactured by F Power Additives is preferred.
  • DISPERB YK161, 162, 168, EFKA4050, 4055, 4060, etc. are preferable S, particularly DISPERBYK168 that is not diluted with a diluting solvent. These are preferably used according to the type of pigment and monomer used.
  • pigment dispersants that are commercially available in the state of containing a low boiling point organic solvent such as toluene, xylene, ethyl acetate, butyl acetate, methyl ethyl ketone, etc.
  • a low boiling point organic solvent such as toluene, xylene, ethyl acetate, butyl acetate, methyl ethyl ketone, etc.
  • a vacuum distillation method, a reprecipitation method, or the like is used as a method for removing the diluted solvent.
  • the amount of the pigment dispersant used varies depending on the type and dispersion conditions of the organic pigment or soot and the inorganic pigment. Usually, it is preferably 5 to 150% by weight based on the organic pigment or soot and the inorganic pigment. In particular, when an organic pigment is used, it is more preferably 40 to 150% by weight. When an inorganic pigment is used, it is more preferably 5 to 60% by weight.
  • the energy ray curable inkjet ink composition of the present invention prepared as described above suppresses polymerization due to heat or light during storage by adding a polymerization inhibitor, if necessary, and preserves the composition. Stability can be improved.
  • polymerization inhibitors Various compounds are known as polymerization inhibitors, but those conventionally widely blended in general polymerizable compositions can be used as they are.
  • phenolic acid antioxidants hindered amine light stabilizers, phosphorus antioxidants, (meth) acrylic monomers, hydroquinone monoalkyl ethers and the like can be used.
  • hydroquinone monomethyl ether hydroquinone, t-butylcatechol, pyrogallol, and trade names made by Ciba include TINUVIN111 FDL, TINUVIN123, TINUVIN144, TINUVIN292, TINUVIN XP40, TINUVIN XP60, and the like.
  • Such polymerization inhibitors can be used alone or as a mixture of two or more. Hydroquinone monomethyl ether is particularly preferably used.
  • these polymerization inhibitors are used excessively, they are irradiated by energy rays such as ultraviolet rays. In order to inhibit the curability, it is necessary to make it an appropriate amount that does not inhibit the curability and can prevent polymerization during preparation and storage of the ink composition. Usually, a strength of 200-20, OOOppm S is preferable, and a strength of 500-2, OOOppm is more preferable! / ⁇ .
  • the energy ray curable inkjet ink composition of the present invention further includes a surfactant, a surface conditioner, a leveling agent, an antifoaming agent, an antioxidant, a pH adjuster, and a charge imparting agent, if necessary.
  • a surfactant such as bactericides, antiseptics, deodorants, charge control agents, wetting agents, anti-skinning agents, perfumes, and pigment derivatives can be blended as optional components.
  • a known general use amount can be selected according to the type.
  • the energy ray-curable inkjet ink composition of the present invention has the above-described configuration, and the viscosity of the entire ink composition is in the range of 3 to 35 mPa's at 25 ° C, particularly preferably 3 to 20 mPa. 's range.
  • the surface tension of the ink composition at 25 ° C. is usually in the range of 20 to 40 mN / m, and particularly preferably in the range of 20 to 35 mN / m.
  • the dispersion average particle diameter of the pigment particles is in the range of 20 to 200 nm, particularly preferably in the range of 50 to 160 nm. If the dispersion average particle size is less than 20 nm, the light resistance of the printed matter may be lowered due to the fine particles, and if it exceeds 200 nm, the printed matter may lack fineness.
  • the energy ray curable inkjet ink composition of the present invention has a low viscosity without being diluted with a diluting solvent and not heated, and the colorant is a pigment.
  • the pigment dispersibility is excellent, and it has good storage stability without causing problems such as increase in viscosity or sedimentation of the pigment during storage or use.
  • the ink jet system a stable ejection property can be obtained at room temperature without heating, and the continuous ejection stability is excellent.
  • it contains a certain amount of photopolymerization initiator, it can be cured quickly by irradiating it with energy rays such as ultraviolet rays during printing, and has excellent curability.
  • good print quality can be obtained even for non-absorbent recording media, and since it does not use a diluting solvent, it has excellent adhesion to the recording medium substrate.
  • Active energy rays such as ultraviolet rays are used.
  • irradiation light source high pressure mercury lamp, low pressure mercury lamp, cold cathode tube, black light, ultraviolet LED, ultraviolet laser, flash light, etc. are used for ultraviolet light. It can also be cured by using two types of light sources and different light sources.
  • use forms such as forming an image by simultaneously using four or more colors of energy ray curable inkjet ink compositions containing at least cyan, magenta, yellow and black by the above printing method are used. It can also be taken arbitrarily.
  • composition of the following ultraviolet ray curable ink composition for inkjet is merely an example, and does not limit the scope of the present invention.
  • “parts” means parts by weight.
  • an ultraviolet curable inkjet ink composition B was prepared in the same manner as in Example 1.
  • E4GN-GT manufactured by Bayer, nickel-containing azo pigment
  • DISPERBYK168 26.6 parts as a pigment dispersant
  • AIN as a monofunctional monomer 53. 4 parts, 100 parts of Zirco Your beads 0.3 mm in diameter were weighed and dispersed for 2 hours with a paint conditioner (Toyo Seiki Co., Ltd.).
  • an ultraviolet curable inkjet ink composition C was prepared in the same manner as in Example 1.
  • an ultraviolet curable inkjet ink composition D was prepared in the same manner as in Example 1.
  • UV-curable ink jet ink composition M 10.0 parts, stir with a magnetic stirrer for 30 minutes, and then suction filter with a glass filter (manufactured by Kiriyama Seisakusho) to obtain UV-curable ink jet ink composition M. Prepared.
  • the ultraviolet curable inkjet ink compositions A to 0 prepared in Examples 1 to 15 and the ultraviolet curable inkjet ink compositions P to U prepared in Comparative Examples 1 to 6 were used for each of the ink compositions.
  • the compositions are summarized in Table 1 to Table 5.
  • IO—A Light Attarate IO—A
  • DPE—6A Light Attarate DPE—6A
  • PE—4A Light Atarilate PE— 4A
  • NP—A Light Atarilate NP— A
  • IRG. 907 IRGACURE907
  • CTX CTX
  • Example 1 Example 2 Example 3 Example 4 Example 5 Facial material (parts) 5. 0 5. 0 5. 0 5. 0 5. 0 5. 0 As pigment dispersant
  • Example 11 Example 12
  • Example 13 Example 14
  • Example 15 Facial (Part) 5. 0 5. 0 5. 0 5. 0 5. 0 As pigment dispersant
  • the average particle size of the pigment particles was measured using a particle size distribution analyzer N4—PLUS (Laser Doppler type particle size distribution meter manufactured by Coulter).
  • the surface tension was measured by using an automatic balance type electoric surface tension meter ESB-V (manufactured by Kyowa Kagaku Co., Ltd.) at a temperature of 25 ° C.
  • ESB-V automatic balance type electoric surface tension meter
  • the ink composition was stored at a temperature of 70 ° C for 7 days, the change in viscosity at this time was examined, and evaluated according to the following criteria.
  • Viscosity change is less than 10%
  • Viscosity change is 10% or more
  • Example 8 4 .7 1 1 0 .0 2 8 .7 A
  • Recording was performed on a recording medium using an ink composition by an ink jet recording apparatus equipped with a piezo ink jet nozzle, and evaluation was performed according to the following criteria.
  • the ink supply system consists of an ink tank, supply pipe, front chamber ink tank just before the head, and piezo head.
  • the droplet size is about 7 pl and 600 X 600 dpi (2.5 dpi means the number of dots per 54 cm). It was driven at a drive frequency ⁇ so that it could be ejected with a resolution of
  • PVC polychlorinated butyl
  • PET polyethylene terephthalate
  • the ink composition is printed on the recording medium using a bar coater (# 12) to form a printed film of m, and a metal nitride lamp (120 W) was used for irradiation so that the total irradiation light amount was 300 mJ / cm 2, and curing was performed.
  • the printed matter thus cured was touched with a finger, and the presence or absence of ink adhering to the finger was visually examined and evaluated according to the following criteria.
  • the ink composition is printed on the recording medium using a bar coater (# 12) to form a printed film of m, and a metal nitride lamp (120W) was used for irradiation and curing so that the total irradiation light amount was 300 mJ / cm 2 .
  • the printed matter thus cured was subjected to a 100 mm square test in accordance with JIS-K-5400, and the peeled state was confirmed with a cellophane tape.
  • the number of bonds in 100 pieces (the number of grids remaining in the case of no peeling?) was examined and evaluated according to the following criteria.
  • each of the ultraviolet curable inkjet ink compositions A to 0 prepared in Examples 1 to 15 employing the configuration of the present invention has suitability as an ink composition. It has excellent storage stability and is fully satisfied with continuous discharge stability, curability and substrate adhesion, and it can be seen that stable printing can be performed at room temperature by the ink jet method. Comparative Examples not to be taken UV-curable ink compositions P to U prepared in 1 to 6 are inferior in continuous ejection stability, curability and substrate adhesion, and are stable at room temperature by the inkjet method. It turns out that it is not possible to perform proper printing.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)

Abstract

L’invention concerne une composition d’encre pour jet d’encre vulcanisable par rayon d’énergie contenant un agent colorant, un monomère monofonctionnel, un monomère multifonctionnel et un initiateur de photopolymérisation. Cette composition d’encre pour jet d’encre vulcanisable par rayon d’énergie est caractérisée en ce qu’elle contient 30 à 90% en poids du monomère monofonctionnel, 10 à 50% en poids du monomère multifonctionnel et 6 à 20% en poids de l’initiateur de photopolymérisation par rapport au poids total de la composition d’encre, et la viscosité de la composition d’encre dans l’ensemble est comprise entre 3 et 35 mPa·s à 25°C. Cette composition d’encre a une faible viscosité sans être diluée avec un diluant ni être chauffée, tout en présentant une bonne stabilité de stockage et une bonne dispersibilité du pigment lorsque l’agent colorant est composé d’un pigment. La composition d’encre possède en outre une excellente stabilité de décharge continue sur un support d’enregistrement et une aptitude suffisante à la vulcanisation lors de l’impression, ce qui permet d’obtenir une bonne qualité d’impression sur un support d’enregistrement non absorbant. En particulier, la composition d’encre est excellente en matière d’adhérence sur les bases de support d’enregistrement.
PCT/JP2005/018530 2004-10-08 2005-10-06 Composition d’encre pour jet d’encre vulcanisable par rayon d’énergie Ceased WO2006041003A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004-296537 2004-10-08
JP2004296537 2004-10-08

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Publication number Priority date Publication date Assignee Title
JP2013502479A (ja) * 2009-08-21 2013-01-24 セリコル リミテッド 印刷用インク
CN110023421A (zh) * 2016-11-10 2019-07-16 爱克发-格法特公司 用于制造印刷电路板的阻焊喷墨油墨

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JPH09183929A (ja) * 1995-12-28 1997-07-15 Nippon Kayaku Co Ltd インクジエット記録方式用紫外線硬化性樹脂組成物及びその硬化物
JP2001288387A (ja) * 2000-04-05 2001-10-16 Sony Chem Corp 電離放射線硬化型インクジェット用インク及びその印画物
JP2003127517A (ja) * 2001-10-26 2003-05-08 Konica Corp インクジェット記録方法、記録ユニット及びインクジェット記録装置
JP2003211663A (ja) * 2002-01-25 2003-07-29 Konica Corp インクジェット記録方法及び記録装置
JP2003311945A (ja) * 2002-04-24 2003-11-06 Konica Minolta Holdings Inc インクジェット記録装置及び記録方法とインクジェット記録装置用インク

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JPH09183929A (ja) * 1995-12-28 1997-07-15 Nippon Kayaku Co Ltd インクジエット記録方式用紫外線硬化性樹脂組成物及びその硬化物
JP2001288387A (ja) * 2000-04-05 2001-10-16 Sony Chem Corp 電離放射線硬化型インクジェット用インク及びその印画物
JP2003127517A (ja) * 2001-10-26 2003-05-08 Konica Corp インクジェット記録方法、記録ユニット及びインクジェット記録装置
JP2003211663A (ja) * 2002-01-25 2003-07-29 Konica Corp インクジェット記録方法及び記録装置
JP2003311945A (ja) * 2002-04-24 2003-11-06 Konica Minolta Holdings Inc インクジェット記録装置及び記録方法とインクジェット記録装置用インク

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013502479A (ja) * 2009-08-21 2013-01-24 セリコル リミテッド 印刷用インク
US8911853B2 (en) 2009-08-21 2014-12-16 Sericol Limited Printing ink
CN110023421A (zh) * 2016-11-10 2019-07-16 爱克发-格法特公司 用于制造印刷电路板的阻焊喷墨油墨
CN110023421B (zh) * 2016-11-10 2022-03-01 爱克发-格法特公司 用于制造印刷电路板的阻焊喷墨油墨

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