JP2011236277A - Active energy ray-curable ink and printed matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an active energy ray-curable ink which has curability by active energy rays, is designed with ultraviolet rays generated by a light emitting diode which generates ultraviolet rays whose emission peak wavelength is especially in the range of 350-420 nm as a curing wavelength, exhibits excellent curability to ultraviolet rays generated by a light emitting diode which generates ultraviolet rays whose emission peak wavelength is in the range of 350-420 nm, and is excellent in glossiness.SOLUTION: The active energy ray-curable ink contains a monomer having an ethylenically unsaturated double bond, a photopolymerization initiator (A) and an alcohol represented by general formula (1), wherein the photopolymerization initiator (A) comprises (A-1) an α-aminoalkylphenone compound and (A-2) an acylphosphine oxide compound. In the formula, R1 represents a 12C-18C saturated or unsaturated linear or branched aliphatic hydrocarbon group.

Description

The present invention relates to an active energy ray-curable ink, a method for producing a cured product of the active energy ray-curable ink, and a printed matter. The present invention further relates to an ink such as a transparent overprint varnish (commonly called OP varnish) printed on a printing machine after single-color or multicolor printing, and an ink for color printing such as yellow, red, indigo and black. In more detail, the present invention is particularly suitable for curing with a light emitting diode (hereinafter referred to as UV-LED) that emits ultraviolet rays having an emission peak wavelength in the range of 350 to 420 nm, and has a glossy active energy ray curing. The present invention relates to a mold ink, a method for producing a cured product comprising the ink, and a printed matter.

Conventionally, printed materials for forms, printed materials for various books, printed materials for packaging such as carton paper, various printed materials for plastics, seals, printed materials for labels, printed materials for arts, printed materials for arts (printed products for art, printed beverages, canned foods, etc.) In order to obtain various printed materials, various printing methods such as lithographic (ordinary lithographic using fountain solution and waterless lithographic plate not using fountain solution), letterpress, intaglio, and stencil printing are adopted. Ink is suitable for each printing method. An active energy ray curable ink is known as one of such inks.

Conventional active energy ray-curable inks are cured using a light source such as a mercury lamp or a metal halide lamp, and a photopolymerization initiator that matches the emission wavelength of those light sources is used. The ultraviolet irradiation light source as described above has a light emitting region over a wide wavelength region. For this reason, conventional active energy ray-curable inks are used in combination with photopolymerization initiators having different absorption wavelengths (see Patent Document 1). .

As described above, since the active energy ray-curable ink uses a photopolymerization initiator having a different absorption wavelength, it can cope with ink curing by a mercury lamp, a metal halide lamp, or the like, but an ultraviolet light having an emission peak wavelength in the range of 350 to 420 nm. Light emitting diode UV-
In LED, sufficient hardening was not obtained.

In addition, when these conventional active energy ray-curable inks are to be cured with UV-LEDs, it is necessary to use a photopolymerization initiator having absorption in the vicinity of a wavelength of 350 to 420 nm. However, in many cases, even if a photopolymerization initiator having absorption at a wavelength of 350 to 420 nm is used, sufficient light energy can be given to the photopolymerization initiator. It cannot be cured.

Normally, in the case of process inks, multi-color overprinting of ink is performed in the order of black, indigo, red, and yellow, but the ink film thickness is thicker in areas with high color density and overlaid areas of printed matter. Furthermore, the light transmittance decreases in the depth direction, and the internal curability of the ink decreases. Therefore, an ink composition using a triazine initiator has been proposed as a method for imparting curability by UV-LED (see Patent Document 2).

However, an active energy ray that can be satisfactorily satisfied in all of the various printing modes even with a triazine initiator, in particular, an ink having curing characteristics for UV-LEDs that emit ultraviolet rays having an emission peak wavelength in the range of 350 to 420 nm is obtained. It is not necessarily done.

In addition, as another method for imparting curability by UV-LED, an ink composition combining a specific α-aminoalkylphenone compound, an acylphosphine oxide compound and a benzophenone compound has been proposed, and has a certain curing property. However, a highly curable ink composition has recently been demanded (Patent Documents 3 to 7).

Japanese Patent Application Laid-Open No. 06-155792 JP 2007-23151 A WO2009 / 008226 Japanese Patent No. 4289441 JP 2009-035730 A JP 2009-057546 A JP 2009-057547 A

The inventors of the present invention have been designed with ultraviolet light generated by a light emitting diode (UV-LED) having curability by active energy rays and generating ultraviolet light in the range of 350 to 420 nm as a curing wavelength. An object of the present invention is to provide an active energy ray-curable ink that has excellent photopolymerizability and curability upon irradiation, is excellent in storage stability and printability as an offset ink, and is particularly excellent in glossiness.

  As a result of intensive studies, the present inventors have found that an active energy ray-curable ink containing a compound having an ethylenic double bond, a specific (A) photopolymerization initiator, and an alcohol represented by the general formula (1), Active energy rays, especially ultraviolet rays, and among them, ultraviolet rays having a wavelength of 350 to 420 nm, have found an active energy ray-curable ink having excellent photopolysynthetic properties and excellent internal curability and particularly excellent gloss. The present invention has been completed.

That is, the present invention relates to an active energy ray-curable ink containing a monomer having an ethylenically unsaturated double bond, (A) a photopolymerization initiator and an alcohol represented by the general formula (1),
(A) The photopolymerization initiator is
(A-1) an α-aminoalkylphenone compound,
and
(A-2) Acylphosphine oxide compound
The present invention relates to an active energy ray-curable ink.
General formula (1)

Furthermore, the present invention provides
(A) The photopolymerization initiator is
Further, the present invention relates to the above active energy ray-curable ink, which is (A-3) a thioxanthone compound and / or (A-4) a benzophenone compound.

The present invention also relates to the above active energy ray-curable ink, wherein (A) the photopolymerization initiator is further (A-5) an alkyl phenyl ketone compound.
Furthermore, the present invention relates to (A-1) α-aminoalkylphenone compound wherein 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone-1, 2-dimethylamino-2- ( 4-Methyl-benzyl) -1- (4-morpholin-4-yl-phenyl) -butan-1-one and 2-methyl-1- [4- (methylthio) phenyl] -2-morpholinopropane-1 -It relates to the above active energy ray-curable ink, characterized in that it is at least one selected from ON.

  In the present invention, the (A-2) acylphosphine oxide compound may be 2,4,6-trimethylbenzoyl-diphenylphosphine oxide and / or bis (2,4,6-trimethylbenzoyl) -phenylphosphine oxide. The present invention relates to the above active energy ray-curable ink.

  Furthermore, the present invention provides the compound (A-3) wherein the thioxanthone compound is 2,4-diethylthioxanthone, 2,4-dimethylthioxanthone, 2,4-dichlorothioxanthone, 1-chloro-4-propylthioxanthone, 2-chlorothioxanthone and The present invention relates to the above active energy ray-curable ink, which is one or more selected from 2-isopropylthioxanthone.

  Further, the present invention provides the above active energy, wherein (A-4) the benzophenone compound is 4,4′-bis- (diethylamino) benzophenone and / or 4-benzoyl-4′-methyldiphenyl sulfide. The present invention relates to a linear curable ink.

  Furthermore, the present invention is characterized in that the (A-5) alkylphenyl ketone compound is one or more selected from 1-hydroxycyclohexyl phenyl ketone and 2-hydroxy-2-methyl-1-phenylpropan-1-one. The above-mentioned active energy ray-curable ink.

In addition, the present invention relates to the above active energy ray-curable ink, which further contains a tertiary amine compound.
Furthermore, the present invention relates to a method for producing an ink cured product, wherein printing is performed using the above active energy ray-curable ink, and the printed ink is cured using the active energy ray.

  Moreover, this invention relates to the printed matter obtained with the manufacturing method of said ink hardened | cured material.

INDUSTRIAL APPLICABILITY The present invention can obtain an ink having excellent curing characteristics with respect to curability by an active energy ray, particularly ultraviolet irradiation by a light emitting diode (UV-LED) that generates ultraviolet light in the range of 350 to 420 nm. The obtained ink can be used as an ink of various conventionally known printing methods such as offset ink, relief printing ink, intaglio printing ink, and stencil printing ink. In addition, when applied to any of these printing methods, an active energy ray-curable ink having excellent printability, excellent storage stability, and particularly excellent glossiness can be obtained.

The active energy ray-curable ink of the present invention has the same printing characteristics and curing as when cured using a conventional high-pressure mercury lamp or metal halide lamp, even when a UV-LED that is monochromatic light is used as an ultraviolet irradiation device. Characteristics can be obtained. Thus, the active energy ray-curable ink of the present invention is designed to be optimal for monochromatic light such as a light emitting diode (UV-LED) that generates ultraviolet rays in the range of 350 to 420 nm.
Of course, even if it is cured using a high-pressure mercury lamp or a metal halide lamp, it can be cured without any problem.

The active energy ray in the present invention means the energy required for the starting material of the curing reaction to be excited from the ground state to the transition state, and the active energy ray in the present invention means an ultraviolet ray or an electron beam. .

In the present invention, “l” in the unit of molar extinction coefficient (l / mol · cm) represents liter which is a unit of volume.

A light source that emits ultraviolet light, such as an electroded high-pressure mercury lamp, an electroded metal halide lamp, an electrodeless high-pressure mercury lamp, or an electrodeless metal halide lamp, is generally used for the photocuring method of the active energy ray-curable ink. As a method of photocuring the active energy ray-curable ink in the present invention, a general light source described above may be used, but a light emitting diode (UV-LED) that generates ultraviolet rays in the range of 350 to 420 nm is used. Is preferred.

The present invention relates to an active energy ray-curable ink containing a monomer having an ethylenic double bond, (A) a photopolymerization initiator and an alcohol represented by the general formula (1):
(A) The photopolymerization initiator is
(A-1) an α-aminoalkylphenone compound,
and
(A-2) Acylphosphine oxide compound
It is characterized by being.
General formula (1)

  In the active energy energy ray-curable ink of the present invention, if the transparent composition is used without containing the pigment as the colorant, an overprint varnish (OP varnish) is formed. , Yellow, red, indigo, black, and other color printing inks.

  In the present invention, the molar extinction coefficient at a wavelength of 365 nm is obtained by dissolving each photopolymerization initiator in an acetonitrile solution and measuring the molar extinction coefficient at 365 nm (measurement apparatus: UV-3600 (Co., Ltd.). Shimadzu Corporation), measurement conditions: measured in a scan wavelength range of 200 to 800 nm and a slit width of 5 nm).

  In the present invention, the (A-1) α-aminoalkylphenone compound and (A-2) acylphosphine oxide compound used as the photopolymerization initiator are photocleavable initiators and have a molar extinction coefficient at a wavelength of 365 nm. Is preferably 100 to 1,000,000 (l / mol · cm).

  The (A-1) α-aminoalkylphenone compound having a molar extinction coefficient at a wavelength of 365 nm of 100 to 1,000,000 (l / mol · cm) is 2-benzyl-2-dimethylamino-1- (4-morpho Linophenyl) -butanone-1,2-dimethylamino-2- (4-methyl-benzyl) -1- (4-morpholin-4-yl-phenyl) -butan-1-one, 1,2-octanedione , 1- [4- (phenylthio)-, 2- (O-benzoyloxime)], ethanone, 1- [9-ethyl-6- (2-methylbenzoyl) -9H-carbazol-3-yl]-, 1 -(O-acetyloxime), 3,6-bis (2-methyl-2-morpholinopropanonyl) -9-butylcarbazole, 2-methyl-1- [4- (methylthio) pheny ] -2-morpholinopropan-1-one, 2-hydroxy-1- {4- [4- (2-hydroxy-2-methyl-propionyl) -benzyl] -phenyl} -2-methyl-propane-1- ON, 2,2-dimethoxy-1,2-diphenylethane-1-one, 2,2-diethoxy-1,2-diphenylethane-1-one, and the like. These may be used alone or in combination of two or more. May be. In particular, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone-1, 2-dimethylamino-2- (4-methyl-benzyl) -1- (4-morpholine-4- Il-phenyl) -butan-1-one, 2-methyl-1- [4- (methylthio) phenyl] -2-morpholinopropan-1-one are preferred.

  As the acylphosphine oxide compound having a molar extinction coefficient at a wavelength of 365 nm of 100 to 1,000,000 (l / mol · cm), bis (2,4,6-trimethylbenzoyl)- Examples thereof include phenylphosphine oxide, 2,4,6-trimethylbenzoyldiphenylphosphine oxide, and bis (2,6-dimethoxybenzoyl) -2,4,4-trimethyl-pentylphosphine oxide. Among these, 2,4,6-trimethylbenzoyldiphenylphosphine oxide is particularly desirable from the viewpoint of the melting line for the resin. The (A-2) acylphosphine oxide compound having a molar extinction coefficient at a wavelength of 365 nm of 100 to 1,000,000 (l / mol · cm) may be used alone or in combination of two or more. May be.

In the present invention, the (A-3) thioxanthone compound and (A-4) benzophenone compound used as the photopolymerization initiator are hydrogen abstraction polymerization initiators, and the molar extinction coefficient at a wavelength of 365 nm is 1, 1, respectively. The compound which is 000-1,000,000 (l / mol * cm) and 10,000-1,000,000 (l / mol * cm) is preferable.
(A-3) Thioxanthone compound having a molar extinction coefficient at a wavelength of 365 nm of 1,000 to 1,000,000 (l / mol · cm) includes 2,4-diethylthioxanthone, 2,4-dimethylthioxanthone, 2,4-diisopropylthioxanthone, 2-isopropylthioxanthone, 4-diisopropylthioxanthone, 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2,4-dichlorothioxanthone, 2-chlorothioxanthone, 1-chloro-4-propoxythioxanthone, 2- And hydroxy-3- (3,4-dimethyl-9-oxo-9H thioxanthone-2-yloxy-N, N, N-trimethyl-1-propanamine hydrochloride and the like, preferably 2,4-diethylthioxanthone , 2,4-dim Tilthioxanthone, 2,4-dichlorothioxanthone, 1-chloro-4-propoxythioxanthone, 2-chlorothioxanthone, and 2-isopropylthioxanthone are good, and these (A-3) thioxanthone compounds may be used alone. Two or more types may be used in combination.

  As the benzophenone compound having a molar extinction coefficient at a wavelength of 365 nm of 10,000 to 1,000,000 (l / mol · cm), 4,4′-bis- (dimethylamino) benzophenone, 4 4,4′-bis- (diethylamino) benzophenone, 4,4′-dialkylaminobenzophenones, 4-benzoyl-4′-methyldiphenyl sulfide, and the like. Among these, 4,4′-bis- (diethylamino) benzophenone is preferable from the viewpoint of safety. The (A-4) benzophenone compound having a molar extinction coefficient at a wavelength of 365 nm of 10,000 to 1,000,000 (l / mol · cm) may be used alone or in combination of two or more. May be.

  In the present invention, examples of the (A-5) alkyl phenyl ketone compound include 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, and the like, which are used alone. Alternatively, two types may be used in combination.

  In the present invention, the tertiary amine compound is preferably a compound having a molar extinction coefficient of 1 (l / mol · cm) or less at a wavelength of 365 nm, such as N, N-dimethylaniline, N, N-diethylaniline, N , N-dimethyl-p-toluidine, ethyl 4- (dimethylamino) benzoate, N, N-dihydroxyethylaniline, triethylamine and N, N-dimethylhexylamine. These tertiary amine compounds having a molar extinction coefficient at a wavelength of 365 nm of 1 (l / mol · cm) or less may be used alone or in combination of two or more.

  Among these, aromatic tertiary amines, which are compounds in which N is directly substituted on the aromatic group, are preferable, and ethyl 4- (dimethylamino) benzoate and isoamyl 4- (dimethylamino) benzoate are preferable.

  As described above, in the present invention, as the alcohol represented by the general formula (1) and the photopolymerization initiator, the molar extinction coefficient at a wavelength of 365 nm is 100 to 1,000,000 (l / mol · cm). (A-1) Photocleavage comprising an α-aminoalkylphenone compound and an (A-2) acylphosphine oxide compound having a molar extinction coefficient at a wavelength of 365 nm of 100 to 1,000,000 (l / mol · cm) (A-3) a thioxanthone compound having a molar extinction coefficient at a wavelength of 365 nm of 1,000 to 1,000,000 (l / mol · cm) or a wavelength of 365 nm, if necessary, (A-4) Water that is a benzophenone compound having a molar extinction coefficient of 10,000 to 1,000,000 (l / mol · cm) A tertiary amine compound or (A-5) alkylphenylketone compound having a molar extinction coefficient at a wavelength of 365 nm of 1 (l / mol · cm) or less, if necessary, in combination with a pull-out photopolymerization initiator In combination with the UV-LED (wavelength 350 to 385 nm) as an ultraviolet irradiation light source, the active energy ray curable type has excellent printing characteristics, including curing characteristics, and excellent gloss. The ink can be obtained, but the reason is not yet clear.

Probably, regarding the glossiness, the alcohol represented by the general formula (1) floats on the ink surface, and it is considered that the glossiness is imparted. However, it is estimated that this is due to the following. However, the present invention is not limited thereby.
General formula (1)

  In the present invention, the alcohol represented by the general formula (1) is preferably a higher alcohol having C12 to C18, such as n-undecanol and its isomer, n-tridecanol and its isomer, n-tridecanol and its isomer. N-tetradecanol and its isomer, n-pentadecanol and its isomer, n-hexadecanol and its isomer, n-heptadecanol and its isomer, n-octadecanol and its isomer Etc., and may be used alone or in combination.

The alcohol represented by the general formula (1) of the active energy ray-curable ink in the present invention, (A-1), (A-2), (A-3), (A-4), (A-5) and The component other than the tertiary amine compound is not particularly limited as long as it is a component blended in the radical polymerizable ink composition without impairing the effects of the present invention, but other photopolymerization initiators, pigments, resins, ethylenic compounds. Examples of the compound having a double bond include a (meth) acryl group-containing compound and an additive.
In particular, in the present invention, the monomer having an ethylenic double bond preferably has a weight average molecular weight of 100 to 6000.

In the present invention, a monomer having an ethylenically unsaturated double bond having a weight average molecular weight of 100 to 6000 is a monofunctional or polyfunctional (meth) acrylate and an oligomer having an ethylenically unsaturated double bond (reactive Oligomer)
The viscosity of the ink composition can be adjusted by appropriately using these.

  A monomer having an ethylenically unsaturated double bond having a weight average molecular weight of 100 to 6000 is used in a range of 5 to 40% by weight based on the ink composition.

  The molecular weight of a monomer having an ethylenically unsaturated double bond having a weight average molecular weight of 100 to 6000 is a molecular weight calculated from the structural formula in the case of monofunctional or polyfunctional (meth) acrylates, and is ethylenic. In the case of an oligomer having an unsaturated double bond (reactive oligomer), the weight average molecular weight is indicated.

  As a molecular weight of the monomer which has an ethylenically unsaturated double bond, 100-6000 are good and 200-5000 are preferable.

  In the present invention, the weight average molecular weight was measured by gel permeation chromatography (HLC-8020, hereinafter referred to as GPC) manufactured by Tosoh Corporation. A calibration curve was prepared with a standard polystyrene sample. Tetrahydrofuran was used as the eluent, and three TSKgel SuperHM-M (manufactured by Tosoh Corporation) were used as the column. The measurement was performed at a flow rate of 0.6 ml / min, an injection volume of 10 μl, and a column temperature of 40 ° C.

  In the present invention, alkyl (having 2 to 18 carbon atoms) (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, hexyl (meth) acrylate, octyl (meth) acrylate, dodecyl (meth) as a monofunctional monomer Examples thereof include acrylate and stearyl (meth) acrylate, and examples include benzyl (meth) acrylate, isobornyl (meth) acrylate, cyclohexyl (meth) acrylate, tricyclodecane monomethylol (meth) acrylate, and the like.

  In the present invention, polyfunctional (meth) acrylates include ethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, dipropylene glycol di (meth) acrylate, and tripropylene. Glycol di (meth) acrylate, polypropylene glycol di (meth) acrylate, butylene glycol di (meth) acrylate, pentyl glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, hydroxypivalyl hydroxypivalate di (meth) Acrylate (commonly called manda), hydroxypivalyl hydroxypivalate dicaprolactonate di (meth) acrylate, 1,6 hexanediol di (meth) acrylate, 1 8-octanediol di (meth) acrylate, 1,9-nonanediol di (meth) acrylate, 1,2-hexadecanediol di (meth) acrylate, 2-methyl-2,4-pentanediol di (meth) acrylate, Bisphenol A tetraethylene oxide adduct di (meth) acrylate, bisphenol F tetraethylene oxide adduct di (meth) acrylate, water-added bisphenol A tetraethylene oxide adduct di (meth) acrylate, water-added bisphenol F tetraethylene oxide adduct Di (meth) acrylate, water-added bisphenol A di (meth) acrylate, water-added bisphenol F di (meth) acrylate, glycerin tri (meth) acrylate, trimethylolpropane tri (meth) acrylate , Trimethylolpropane tricaprolactonate tri (meth) acrylate, trimethylolethane tri (meth) acrylate, trimethylolhexane tri (meth) acrylate, trimethyloloctane tri (meth) acrylate, pentaerythritol tri (meth) acrylate, penta Erythritol tetra (meth) acrylate, diglycerin tetra (meth) acrylate, ditrimethylolpropane tetra (meth) acrylate, ditrimethylolpropane tetracaprolactonate, tetra (meth) acrylate, ditrimethylolethane tetra (meth) acrylate, ditrimethylol Butanetetra (meth) acrylate, ditrimethylolhexanetetra (meth) acrylate, ditrimethyloloctanetetra (meta Use acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, tripentaerythritol hexa (meth) acrylate, tripentaerythritol hepta (meth) acrylate, tripentaerythritol octa (meth) acrylate, etc. Can do.

  As the oligomer (reactive oligomer) having an ethylenically unsaturated double bond used in the present invention, alkyd acrylate, epoxy acrylate, urethane-modified acrylate and the like are used.

  Furthermore, the monomer having an ethylenically unsaturated double bond having a weight average molecular weight of 100 to 6000 of the present invention includes an alkylene oxide adduct (meth) acrylate of an aliphatic alcohol compound. Alkylene oxide adduct (meth) acrylate monomer of aliphatic alcohol compound Mono- or poly (1-20) alkylene (C2-C20) oxide adduct of aliphatic alcohol compound (alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) , Pentylene oxide, hexylene oxide, etc.) mono or poly (1-10) (meth) acrylate.

As a monofunctional monomer, an alkylene oxide adduct (meth) acrylate having 2 to 20 carbon atoms, for example, methanol mono- or poly (1-20) alkylene (C2 to C20) oxide adduct (for example, ethylene oxide, propylene oxide, Butylene oxide) (meth) acrylate, ethanol mono or poly (1-20) alkylene (C2 to C20) oxide adduct (eg, alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) (meth) acrylate, butanol mono or poly ( 1-20) Alkylene (C2-C20) oxide adducts (As alkylene oxides, for example, ethylene oxide, propylene oxide, butylene oxide) (medium ) Acrylate, hexanol mono or poly (1-20) alkylene (C2 to C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) (meth) acrylate, octanol mono or poly (1-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) (meth) acrylate, dodecanol mono- or poly (1-20) alkylene (C2-C20) oxide adduct (as alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) (meth) acrylate, stearyl mono- or poly (1-20) alkylene (C2- 20) Oxide adducts (e.g., ethylene oxide and propylene oxide as alkylene oxides. Furthermore, poly (1-20) alkylene (C2-C20) oxide adducts of butylphenol, octylphenol, nonylphenol or dodecylphenol (e.g., ethylene oxide as alkylene oxide) , Propylene oxide, butylene oxide) (meth) acrylate and the like.

Further, ethylene glycol mono- or poly (1-20) alkylene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, diethylene glycol mono or poly (2) as bifunctional monomers -20) Alkylene (C2-C20) oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, triethylene glycol poly (2-20) alkylene (C2-C20) oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, polyethylene glycol poly 2-20) Alkylene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, propylene glycol poly (2-20) alkylene (C2-C20) oxide adducts as alkylene oxides (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) Di (meth) acrylate, dipropylene glycol poly (2-20) alkylene (C2-C20) oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene Oxide) di (meth) acrylate, tripropylene glycol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, polypropylene glycol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) (Meth) acrylate, butylene glycol poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, pentyl glycol poly (2-20) Alkylene (C2 to C20) oxide adducts (alkylene oxides such as ethylene oxide, propylene oxide, butyleneo Xide) di (methaneopentyl glycol poly (2-20) (e.g., ethylene oxide, propylene oxide, butylene oxide, etc.) adduct di (meth) acrylate, hydroxypivalyl hydroxypivalate poly (2-20) alkylene (C2- C20) Oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate (commonly called manda), hydroxypivalyl hydroxypivalate dicaprolactonate poly (2-20) alkylene (C2-C20) ) Oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,6 hexanediol poly (2-20) al Lene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,6 hexanediol poly (2-20) alkylene oxide adducts (e.g., ethylene oxide, propylene) Oxide, butylene oxide, etc.) di (meth) acrylate, 1,2-hexanediol di (meth) acrylate, 1,5-hexanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide) Ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2,5-hexanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxy) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,7-heptanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, propylene oxide, Butylene oxide) di (meth) acrylate, 1,8-octanediol poly (2-20) alkylene (C2-C20) oxide adduct (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,2-octanediol poly (2-20) alkylene (C2-C20) oxide adducts (alkylene oxides such as ethylene oxide, propylene oxide, Tylene oxide) di (meth) acrylate di (meth) acrylate, 1,9-nonanediol poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (Meth) acrylate, 1,2-decanediol poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,10- Decanediol poly (2-20) alkylene (C2-C20) oxide adduct (eg alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, , 2-decanediol poly (2-20) alkylene (C2 to C20) oxide adduct (eg, alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,12-dodecanediol poly (2- 20) Alkylene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,2-dodecanediol mono- or poly (1-20) alkylene (C2-C20 as alkylene oxide) ) Oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,14-tetradecanediol poly (2-20) al Lene (C2 to C20) oxide adducts (eg, alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,2-tetradecanediol poly (2-20) alkylene (C2 to C20) oxide adducts (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) Di (meth) acrylate, 1,16-hexadecanediol mono- or poly (2-20) alkylene (C2-C20) oxide adduct (As alkylene oxide, for example, ethylene oxide , Propylene oxide, butylene oxide) di (meth) acrylate, 1,2-hexadecanediol poly (2-20) alkylene (C2-C20) oxide addition (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2-methyl-2,4-pentanediol poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example Ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 3-methyl-1,5-pentanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, propylene oxide) , Butylene oxide) di (meth) acrylate, 2-methyl-2-propyl-1,3-propanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkyle) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2,4-dimethyl-2,4-pentanediol poly (2 to 20) alkylene (C2 to C20) oxide adduct (as alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2,2-diethyl-1,3-propanediol mono- or poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2,2,4-trimethyl-1,3-pentanediol mono- or poly (2-20) alkylene (C2-C20) oxa Adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, dimethyloloctane poly (2-20) alkylene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene as alkylene oxide) Oxide, butylene oxide) di (meth) acrylate, 2-ethyl-1,3-hexanediol poly (2-20) alkylene (C2-C20) oxide adduct (eg, alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) Di (meth) acrylate, 2,5-dimethyl-2,5-hexanediol poly (2-20) alkylene (C2-C20) oxide adduct (with alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2-methyl-1,8-octanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, Propylene oxide, butylene oxide) di (meth) acrylate, 2-butyl-2-ethyl-1,3-propanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, propylene Oxide, butylene oxide) di (meth) acrylate, 2,4-diethyl-1,5-pentanediol poly (2-20) alkylene (C2-C20) oxide adduct (example as alkylene oxide) Ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate are exemplified Invite.

  Glycerin poly (2-20) alkylene (C2-C20) oxide adducts (eg, alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide) tri (meth) acrylate, trimethylolpropane poly (2-20) alkylene as trifunctional monomers (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) tri (meth) acrylate, trimethylolethane poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) tri (meth) acrylate, trimethylolhexane poly (2-20) alkylene (C2 C20) Oxide adduct (for example, ethylene oxide, propylene oxide, butylene oxide) as an alkylene oxide, tri (meth) acrylate, trimethyloloctane poly (2-20) alkylene (C2-C20) oxide adduct (for example, ethylene oxide as alkylene oxide) , Propylene oxide, butylene oxide) tri (meth) acrylate, trimethyloloctane poly (3-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) tri (meth) acrylate Pentaerythritol poly (2-20) alkylene (C2-C20) oxide adducts (alkylene oxides such as Alkylene oxide, propylene oxide, butylene oxide) tri (meth) acrylate and the like.

Pentaerythritol poly (2-20) alkylene (C2
To C20) oxide adduct (eg, alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) tetra (meth) acrylate, ditrimethylolpropane poly (2 to 20) alkylene (C2 to C20) oxide adduct (eg, alkylene oxide such as ethylene Oxide, propylene oxide, butylene oxide) tetra (meth) acrylate, ditrimethylolpropane poly (2-20) alkylene oxide (eg, ethylene oxide, propylene oxide, butylene oxide, etc.) tetra (meth) acrylate, ditrimethylolpropane tetracaprolacto Nates, tetra (meth) acrylates, ditrimethylolethane poly (2-20) alkylene (C2-C20) oxides Adducts (such as ethylene oxide, propylene oxide, butylene oxide) tetra (meth) acrylate, ditrimethylolethane poly (2-20) alkylene oxide (such as ethylene oxide, propylene oxide, butylene oxide) tetra (meth) acrylate , Ditrimethylol butane poly (2-20) alkylene oxide (eg, ethylene oxide, propylene oxide, butylene oxide, etc.) tetra (meth) acrylate, ditrimethylol hexane poly (2-20) alkylene (C2-C20) oxide adduct (alkylene) Examples of oxides include ethylene oxide, propylene oxide, butylene oxide) tetra (meth) acrylate, and ditrimethylo Ruhexane poly (2-20) alkylene oxide (for example, ethylene oxide, propylene oxide, butylene oxide, etc.) tetra (meth) acrylate, ditrimethyloloctane (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide) , Propylene oxide, butylene oxide) tetra (meth) acrylate, ditrimethyloloctane poly (4-200) alkylene oxide (eg, ethylene oxide, propylene oxide, butylene oxide, etc.) tetra (meth) acrylate, dipentaerythritol poly (5-20) ) Alkylene (C2-C20) oxide adduct (e.g., ethylene oxide, propylene oxide as alkylene oxide) Butylene oxide) penta (meth) acrylate, dipentaerythritol poly (2-20) alkylene (C2-C20) oxide adduct (e.g., ethylene oxide, propylene oxide, butylene oxide) hexa (meth) acrylate, propylene oxide, Butylene oxide, etc.) Hexa (meth) acrylate, dipentaerythritol hexacaprolactonate poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) hexa (meta ) Acrylate, tripentaerythritol poly (2-20) alkylene (C2-C20) oxide adduct (exemplified as alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) hepta (meth) acrylate, tripentaerythritol poly (2-20) alkylene (C2 to C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) octa ( (Meth) acrylates, tripentaerythritol poly (2-20) alkylene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) hexa (meth) acrylate, tripentaerythritol polyalkylene oxide hepta (alkylene oxide) (Meth) acrylate, tripentaerythritol poly (2-20) alkylene (C2-C20) oxide adduct ( For example ethylene oxide as Ruki alkylene oxide, propylene oxide, butylene oxide), but octa (meth) acrylate and the like are not limited thereto.

  As initiators other than (A-1), (A-2), (A-3), (A-4), (A-5) and tertiary amine compounds, benzophenone, 4-methyl-benzophenone, 2 , 4,6-trimethylbenzophenone, 2,3,4-trimethylbenzophenone, 4-phenylbenzophenone, 3,3′-dimethyl-4-methoxybenzophenone, 4- (1,3-acryloyl-1,4,7,10 , 13-pentaoxotridecyl) benzophenone, methyl-o-benzoylbenzoate, [4- (methylphenylthio) phenyl] phenylmethanone, (4-benzoylbenzyl) trimethylammonium chloride, 1- (4-isopropylphenyl) 2 -Hydroxy-2-methyl-1-phenylpropan-1-one, 2-hydroxy-2-methyl-1-styryl Propan-1-one polymer, diethoxyacetophenone, dibutoxy acetophenone, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, and benzoin n-butyl ether and the like, these may be used in combination.

Examples of the resin include thermosetting or thermoplastic resins, such as polyvinyl chloride, poly (meth) acrylate, epoxy resin, polyurethane resin, cellulose derivatives (for example, ethyl cellulose, cellulose acetate, nitrocellulose), chloride. Examples thereof include synthetic rubbers such as vinyl-vinyl acetate copolymers, polyamide resins, polyvinyl acetal resins, diallyl phthalate resins, and butadiene-acrylonitrile copolymers. These resins can be used alone or in combination of two or more thereof. Further, the resin for hybrid ink having the characteristics of oil-based ink and active energy ray-curable ink is the rosin phenol resin, rosin alkyd resin, petroleum resin modified alkyd resin, styrene acrylic resin (for example, styrene isobornyl acrylic resin). ) Is used. Furthermore, the said animal and vegetable oil or its fatty acid monoester is used.

Examples of the pigment include inorganic pigments and organic pigments. As an inorganic pigment, yellow lead,
Zinc yellow, bitumen, barium sulfate, cadmium red, titanium oxide, zinc white, petal, alumina white, calcium carbonate, ultramarine, carbon black, graphite, aluminum powder,
Bengala and the like are organic pigments such as β-naphthol, β-oxynaphthoic acid, β-
Soluble azo pigments such as oxynaphthoic acid type anilide type, acetoacetate anilide type, pyrazolone type, β-naphthol type, β-oxynaphthoic acid type anilide type, acetoacetate anilide type monoazo, acetoacetate anilide type disazo, pyrazolone type, etc. Insoluble azo pigments, copper phthalocyanine blue, halogenated (chlorine or brominated) copper phthalocyanine blue, sulfonated copper phthalocyanine blue, metal-free phthalocyanine and other phthalocyanine pigments, quinacridone, dioxazine, selenium (pyrantron, anthanthrone, indane) Throne, anthrapyrimidine, flavantron, thioindigo, anthraquinone, perinone, perylene, etc.), isoindolinone, metal complex, quinophthalone, etc. Various publicly known and publicly known pigments can be used.

  As the (meth) acrylic group-containing compound, examples of the monofunctional monomer include methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, hexyl (meth) acrylate, octyl (meth) acrylate, dodecyl (meth) ) Acrylates, stearyl (meth) acrylates and other (alkyl) (meth) acrylates having 1 to 18 carbon atoms, and addition of alkylphenols such as benzyl (meth) acrylate, butylphenol, octylphenol or nonylphenol or dodecylphenol, ethylene oxide addition (Meth) acrylate, isobornyl (meth) acrylate, cyclohexyl (meth) acrylate, tricyclodecane monomethylol (meth) acrylate, 2-hydroxy Siethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, hydroxypentyl (meth) acrylate, 2 -Hydroxy-3-phenoxypropyl (meth) acrylate, 2-hydroxy-3-butoxypropyl (meth) acrylate, 2-hydroxy-3-methoxypropyl (meth) acrylate, diethylene glycol mono (meth) acrylate, triethylene glycol mono ( (Meth) acrylate, polyethylene glycol mono (meth) acrylate, dipropylene glycol mono (meth) acrylate, polypropylene glycol mono (meth) acrylate, glycerin mono (meth) acrylate Lilate, acryloxyethyl phthalate, 2- (meth) acryloyloxyethyl-2-hydroxyethyl phthalate, 2- (meth) acryloyloxypropyl phthalate, β-carboxyethyl (meth) acrylate, (meth) acrylic acid dimer , Ω-carboxy-polycaprolactone mono (meth) acrylate, dimethylaminoethyl (meth) acrylate, diethylaminoethyl (meth) acrylate, N-vinylpyrrolidone, N-vinylformamide, (meth) acryloylmorpholine and the like.

  Furthermore, as the bifunctional monomer, ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, dipropylene Glycol di (meth) acrylate, tripropylene glycol di (meth) acrylate, polypropylene glycol di (meth) acrylate, butylene glycol di (meth) acrylate, pentyl glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, hydroxy Pivalylhydroxypivalate di (meth) acrylate (commonly called manda), hydroxypivalylhydroxypivalate dicaprolactonate di (me ) Acrylate, 1,6-hexanediol di (meth) acrylate, 1,2-hexanediol di (meth) acrylate, 1,5-hexanediol di (meth) acrylate, 2,5-hexanediol di (meth) acrylate, 1,7-heptanediol di (meth) acrylate, 1,8-octanediol di (meth) acrylate, 1,2-octanediol di (meth) acrylate, 1,9-nonanediol di (meth) acrylate, 1, 2-decanediol di (meth) acrylate, 1,10-decanediol di (meth) acrylate, 1,2-decanediol di (meth) acrylate, 1,12-dodecanediol di (meth) acrylate, 1,2- Dodecanediol di (meth) acrylate, 1,14-tetradecanediol (Meth) acrylate, 1,2-tetradecanediol di (meth) acrylate, 1,16-hexadecanediol di (meth) acrylate, 1,2-hexadecanediol di (meth) acrylate, 2-methyl-2,4-pentane Diol di (meth) acrylate, 3-methyl-1,5-pentanediol di (meth) acrylate, 2-methyl-2-propyl-1,3-propanediol di (meth) acrylate, 2,4-dimethyl-2 , 4-pentanediol di (meth) acrylate, 2,2-diethyl-1,3-propanediol di (meth) acrylate, 2,2,4-trimethyl-1,3-pentanediol di (meth) acrylate, Dimethyloloctane di (meth) acrylate, 2-ethyl-1,3-hexanediol di (meth) ) Acrylate, 2,5-dimethyl-2,5-hexanediol di (meth) acrylate, 2-methyl-1,8-octanediol di (meth) acrylate, 2-butyl-2-ethyl-1,3-propane Diol di (meth) acrylate, 2,4-diethyl-1,5-pentanediol di (meth) acrylate, 1,2-hexanediol di (meth) acrylate, 1,5-hexanediol di (meth) acrylate, 2 , 5-hexanediol di (meth) acrylate, 1,7-heptanediol di (meth) acrylate, 1,8-octanediol di (meth) acrylate, 1,2-octanediol di (meth) acrylate, 1,9 -Nonanediol di (meth) acrylate, 1,2-decanediol di (meth) acrylate, 1,1 -Decanediol di (meth) acrylate, 1,2-decanediol di (meth) acrylate, 1,12-dodecanediol di (meth) acrylate, 1,2-dodecanediol di (meth) acrylate, 1,14-tetradecane Diol di (meth) acrylate, 1,2-tetradecanediol di (meth) acrylate, 1,16-hexadecanediol di (meth) acrylate, 1,2-hexadecanediol di (meth) acrylate, 2-methyl-2,4 -Pentanedi (meth) acrylate, 3-methyl-1,5-pentanediol di (meth) acrylate, 2-methyl-2-propyl-1,3-propanediol di (meth) acrylate, 2,4-dimethyl-2 , 4-Pentanediol di (meth) acrylate, 2,2-diethyl 1,3-propanediol di (meth) acrylate, 2,2,4-trimethyl-1,3-pentanediol di (meth) acrylate, dimethyloloctane di (meth) acrylate (manufactured by Mitsubishi Chemical Corporation), 2- Ethyl-1,3-hexanediol di (meth) acrylate, 2,5-dimethyl-2,5-hexanediol di (meth) acrylate, 2-butyl-2-ethyl-1,3-propanediol di (meth) Acrylate, 2,4-diethyl-1,5-pentanediol di (meth) acrylate tricyclodecane dimethylol di (meth) acrylate, tricyclodecane dimethylol dicaprolactonate di (meth) acrylate, bisphenol A tetraethylene oxide Adduct di (meth) acrylate, bisphenol F tetraethylene Oxide adduct di (meth) acrylate, bisphenol S tetraethylene oxide adduct di (meth) acrylate, water-added bisphenol A tetraethylene oxide adduct di (meth) acrylate, water-added bisphenol F tetraethylene oxide adduct di (meth) Acrylate, water-added bisphenol A di (meth) acrylate, water-added bisphenol F di (meth) acrylate, bisphenol A tetraethylene oxide adduct dicaprolactonate di (meth) acrylate, bisphenol F tetraethylene oxide adduct dicaprolactonate Examples thereof include di (meth) acrylate.

  Trifunctional monomers include glycerin tri (meth) acrylate, trimethylolpropane tri (meth) acrylate, trimethylolpropane tricaprolactonate tri (meth) acrylate, trimethylolethane tri (meth) acrylate, trimethylolhexanetri (meth) ) Acrylate, trimethylol octane tri (meth) acrylate, pentaerythritol tri (meth) acrylate and the like.

  As tetra- or higher functional monomers, pentaerythritol tetra (meth) acrylate, pentaerythritol tetracaprolactonate tetra (meth) acrylate, diglycerin tetra (meth) acrylate, ditrimethylolpropane tetra (meth) acrylate, ditrimethylolpropane tetra Caprolactonate tetra (meth) acrylate, ditrimethylolethanetetra (meth) acrylate, ditrimethylolbutanetetra (meth) acrylate, ditrimethylolhexanetetra (meth) acrylate, ditrimethyloloctanetetra (meth) acrylate, dipentaerythritol penta (Meth) acrylate, dipentaerythritol hexa (meth) acrylate, tripentaerythritol hexa (meth) acryl Chromatography, tri pentaerythritol hepta (meth) acrylate, tripentaerythritol octa (meth) acrylate, tripentaerythritol polyalkylene oxide hepta (meth) acrylate and the like.

  Furthermore, as a compound containing the (meth) acryl group of this invention, there is an alkylene oxide adduct (meth) acrylate of an aliphatic alcohol compound. Alkylene oxide adduct (meth) acrylate monomer of aliphatic alcohol compound Mono- or poly (1-20) alkylene (C2-C20) oxide adduct of aliphatic alcohol compound (alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) , Pentylene oxide, hexylene oxide, etc.) mono or poly (1-10) (meth) acrylate.

As a monofunctional monomer, an alkylene oxide adduct (meth) acrylate having 2 to 20 carbon atoms, for example, methanol mono- or poly (1-20) alkylene (C2 to C20) oxide adduct (for example, ethylene oxide, propylene oxide, Butylene oxide) (meth) acrylate, ethanol mono or poly (1-20) alkylene (C2 to C20) oxide adduct (eg, alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) (meth) acrylate, butanol mono or poly ( 1-20) Alkylene (C2-C20) oxide adducts (As alkylene oxides, for example, ethylene oxide, propylene oxide, butylene oxide) (medium ) Acrylate, hexanol mono or poly (1-20) alkylene (C2 to C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) (meth) acrylate, octanol mono or poly (1-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) (meth) acrylate, dodecanol mono- or poly (1-20) alkylene (C2-C20) oxide adduct (as alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) (meth) acrylate, stearyl mono- or poly (1-20) alkylene (C2- 20) Oxide adducts (e.g., ethylene oxide and propylene oxide as alkylene oxides. Furthermore, poly (1-20) alkylene (C2-C20) oxide adducts of butylphenol, octylphenol, nonylphenol or dodecylphenol (e.g., ethylene oxide as alkylene oxide) , Propylene oxide, butylene oxide) (meth) acrylate and the like.

Further, ethylene glycol mono- or poly (1-20) alkylene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, diethylene glycol mono or poly (2) as bifunctional monomers -20) Alkylene (C2-C20) oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, triethylene glycol poly (2-20) alkylene (C2-C20) oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, polyethylene glycol poly 2-20) Alkylene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, propylene glycol poly (2-20) alkylene (C2-C20) oxide adducts as alkylene oxides (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) Di (meth) acrylate, dipropylene glycol poly (2-20) alkylene (C2-C20) oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene Oxide) di (meth) acrylate, tripropylene glycol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, polypropylene glycol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) (Meth) acrylate, butylene glycol poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, pentyl glycol poly (2-20) Alkylene (C2 to C20) oxide adducts (alkylene oxides such as ethylene oxide, propylene oxide, butyleneo Xide) di (methaneopentyl glycol poly (2-20) (e.g., ethylene oxide, propylene oxide, butylene oxide, etc.) adduct di (meth) acrylate, hydroxypivalyl hydroxypivalate poly (2-20) alkylene (C2- C20) Oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate (commonly called manda), hydroxypivalyl hydroxypivalate dicaprolactonate poly (2-20) alkylene (C2-C20) ) Oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,6 hexanediol poly (2-20) al Lene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,6 hexanediol poly (2-20) alkylene oxide adducts (e.g., ethylene oxide, propylene) Oxide, butylene oxide, etc.) di (meth) acrylate, 1,2-hexanediol di (meth) acrylate, 1,5-hexanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide) Ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2,5-hexanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxy) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,7-heptanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, propylene oxide, Butylene oxide) di (meth) acrylate, 1,8-octanediol poly (2-20) alkylene (C2-C20) oxide adduct (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,2-octanediol poly (2-20) alkylene (C2-C20) oxide adducts (alkylene oxides such as ethylene oxide, propylene oxide, Tylene oxide) di (meth) acrylate di (meth) acrylate, 1,9-nonanediol poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (Meth) acrylate, 1,2-decanediol poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,10- Decanediol poly (2-20) alkylene (C2-C20) oxide adduct (eg alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, , 2-decanediol poly (2-20) alkylene (C2 to C20) oxide adduct (eg, alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,12-dodecanediol poly (2- 20) Alkylene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,2-dodecanediol mono- or poly (1-20) alkylene (C2-C20 as alkylene oxide) ) Oxide adduct (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,14-tetradecanediol poly (2-20) al Lene (C2 to C20) oxide adducts (eg, alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 1,2-tetradecanediol poly (2-20) alkylene (C2 to C20) oxide adducts (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) Di (meth) acrylate, 1,16-hexadecanediol mono- or poly (2-20) alkylene (C2-C20) oxide adduct (As alkylene oxide, for example, ethylene oxide , Propylene oxide, butylene oxide) di (meth) acrylate, 1,2-hexadecanediol poly (2-20) alkylene (C2-C20) oxide addition (As alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2-methyl-2,4-pentanediol poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example Ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 3-methyl-1,5-pentanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, propylene oxide) , Butylene oxide) di (meth) acrylate, 2-methyl-2-propyl-1,3-propanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkyle) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2,4-dimethyl-2,4-pentanediol poly (2 to 20) alkylene (C2 to C20) oxide adduct (as alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2,2-diethyl-1,3-propanediol mono- or poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2,2,4-trimethyl-1,3-pentanediol mono- or poly (2-20) alkylene (C2-C20) oxa Adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, dimethyloloctane poly (2-20) alkylene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene as alkylene oxide) Oxide, butylene oxide) di (meth) acrylate, 2-ethyl-1,3-hexanediol poly (2-20) alkylene (C2-C20) oxide adduct (eg, alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) Di (meth) acrylate, 2,5-dimethyl-2,5-hexanediol poly (2-20) alkylene (C2-C20) oxide adduct (with alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate, 2-methyl-1,8-octanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, Propylene oxide, butylene oxide) di (meth) acrylate, 2-butyl-2-ethyl-1,3-propanediol poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, propylene Oxide, butylene oxide) di (meth) acrylate, 2,4-diethyl-1,5-pentanediol poly (2-20) alkylene (C2-C20) oxide adduct (example as alkylene oxide) Ethylene oxide, propylene oxide, butylene oxide) di (meth) acrylate are exemplified Invite.

  Glycerin poly (2-20) alkylene (C2-C20) oxide adducts (eg, alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide) tri (meth) acrylate, trimethylolpropane poly (2-20) alkylene as trifunctional monomers (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) tri (meth) acrylate, trimethylolethane poly (2-20) alkylene (C2-C20) oxide adduct (as alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) tri (meth) acrylate, trimethylolhexane poly (2-20) alkylene (C2 C20) Oxide adduct (for example, ethylene oxide, propylene oxide, butylene oxide) as an alkylene oxide, tri (meth) acrylate, trimethyloloctane poly (2-20) alkylene (C2-C20) oxide adduct (for example, ethylene oxide as alkylene oxide) , Propylene oxide, butylene oxide) tri (meth) acrylate, trimethyloloctane poly (3-20) alkylene (C2-C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) tri (meth) acrylate Pentaerythritol poly (2-20) alkylene (C2-C20) oxide adducts (alkylene oxides such as Alkylene oxide, propylene oxide, butylene oxide) tri (meth) acrylate and the like.

Pentaerythritol poly (2-20) alkylene (C2
To C20) oxide adduct (eg, alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) tetra (meth) acrylate, ditrimethylolpropane poly (2 to 20) alkylene (C2 to C20) oxide adduct (eg, alkylene oxide such as ethylene Oxide, propylene oxide, butylene oxide) tetra (meth) acrylate, ditrimethylolpropane poly (2-20) alkylene oxide (eg, ethylene oxide, propylene oxide, butylene oxide, etc.) tetra (meth) acrylate, ditrimethylolpropane tetracaprolacto Nates, tetra (meth) acrylates, ditrimethylolethane poly (2-20) alkylene (C2-C20) oxides Adducts (such as ethylene oxide, propylene oxide, butylene oxide) tetra (meth) acrylate, ditrimethylolethane poly (2-20) alkylene oxide (such as ethylene oxide, propylene oxide, butylene oxide) tetra (meth) acrylate , Ditrimethylol butane poly (2-20) alkylene oxide (eg, ethylene oxide, propylene oxide, butylene oxide, etc.) tetra (meth) acrylate, ditrimethylol hexane poly (2-20) alkylene (C2-C20) oxide adduct (alkylene) Examples of oxides include ethylene oxide, propylene oxide, butylene oxide) tetra (meth) acrylate, and ditrimethylo Ruhexane poly (2-20) alkylene oxide (for example, ethylene oxide, propylene oxide, butylene oxide, etc.) tetra (meth) acrylate, ditrimethyloloctane (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide) , Propylene oxide, butylene oxide) tetra (meth) acrylate, ditrimethyloloctane poly (4-200) alkylene oxide (eg, ethylene oxide, propylene oxide, butylene oxide, etc.) tetra (meth) acrylate, dipentaerythritol poly (5-20) ) Alkylene (C2-C20) oxide adduct (e.g., ethylene oxide, propylene oxide as alkylene oxide) Butylene oxide) penta (meth) acrylate, dipentaerythritol poly (2-20) alkylene (C2-C20) oxide adduct (e.g., ethylene oxide, propylene oxide, butylene oxide) hexa (meth) acrylate, propylene oxide, Butylene oxide, etc.) Hexa (meth) acrylate, dipentaerythritol hexacaprolactonate poly (2-20) alkylene (C2-C20) oxide adduct (alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide) hexa (meta ) Acrylate, tripentaerythritol poly (2-20) alkylene (C2-C20) oxide adduct (exemplified as alkylene oxide) For example, ethylene oxide, propylene oxide, butylene oxide) hepta (meth) acrylate, tripentaerythritol poly (2-20) alkylene (C2 to C20) oxide adduct (as alkylene oxide, for example, ethylene oxide, propylene oxide, butylene oxide) octa ( (Meth) acrylates, tripentaerythritol poly (2-20) alkylene (C2-C20) oxide adducts (e.g., ethylene oxide, propylene oxide, butylene oxide) hexa (meth) acrylate, tripentaerythritol polyalkylene oxide hepta (alkylene oxide) (Meth) acrylate, tripentaerythritol poly (2-20) alkylene (C2-C20) oxide adduct ( For example ethylene oxide as Ruki alkylene oxide, propylene oxide, butylene oxide), but octa (meth) acrylate and the like are not limited thereto.

Furthermore, other additives can be used in the printing ink as required.

For example, additives for imparting anti-friction properties, anti-blocking properties, slipping properties, and anti-scratch properties include natural wax such as carnauba wax, wax, lanolin, montan wax, paraffin wax, microcrystalline wax, and Fischer-Trops wax. Examples thereof include polyethylene wax, polypropylene wax, polytetrafluoroethylene wax, polyamide wax, and synthetic waxes such as silicone compounds.

For example, as additives for imparting storage stability of ink, (alkyl) phenol, hydroquinone, catechol, resorcin, p-methoxyphenol, t-butylcatechol, t-butylhydroquinone, pyrogallol, 1,1-picrylhydra Dil, phenothiazine, p-benzoquinone, nitrosobenzene, 2,5-di-tert-butyl-p-benzoquinone, dithiobenzoyl disulfide, picric acid, cuperone, aluminum N-nitrosophenylhydroxylamine, tri-p-nitrophenylmethyl, N- (3-oxyanilino-1,3-dimethylbutylidene) aniline oxide, dibutylcresol, cyclohexanone oximecresol, guaiacol, o-isopropylphenol, butyraloxime, methylethylketoxime And polymerization inhibitors such as cyclohexanone oxime.

In addition, additives such as an ultraviolet absorber, an infrared absorber and an antibacterial agent can be added according to the required performance.

Therefore, the composition of the active energy ray-curable ink of the present invention is as follows: (1) Photocleavage with a molar extinction coefficient at a wavelength of 365 nm of 100 to 1,000,000 (l / mol · cm) with respect to the total amount of ink. Type polymerization initiator (total amount of (A-1) α-aminoalkylphenone compound and (A-2) acylphosphine oxide compound) 1 to 20% by weight
(2) Hydrogen abstraction type polymerization initiator (total amount of (A-3) thioxanthone compound and (A-4) benzophenone compound) 0 to 10% by weight
(3) (A-5) Alkyl phenyl ketone compound 0 to 10% by weight
(4) A tertiary amine compound having a molar extinction coefficient at a wavelength of 365 nm of 1 (l / mol · cm) or less 0 to 10% by weight
(5) Monomer having an ethylenically unsaturated double bond 20 to 70% by weight
(6) Alcohol represented by general formula (1) 1 to 5% by weight
(7) Resin 0-30% by weight
(8) Pigment 0 to 30% by weight
(9) Other additives 0 to 10% by weight
Are mentioned as preferred compositions, but are not limited to this range.

The printing ink may be produced by the same method as that of the conventional ultraviolet curable ink. For example, the pigment, resin, acrylic monomer or oligomer, polymerization inhibitor, initiator and amine are used at a temperature between room temperature and 100 ° C. Ink composition components such as sensitizers such as compounds and other additives are produced using kneading, mixing, and adjusting machines such as a kneader, three rolls, attritor, sand mill, and gate mixer.

Hereinafter, the present invention will be described specifically by way of examples. In the present invention, “part” represents “part by weight” and “%” represents “% by weight”.

Various active energy ray-curable overprint varnishes (OP varnishes) are obtained by kneading the inks of Examples 1 and 2 and Comparative Examples 1 to 3 with a three roll mill according to the composition (parts) in Table 1. It was. The obtained active energy ray curable OP varnish was applied to an OK top coat (57.5 kg / A, manufactured by Oji Paper Co., Ltd.) with an active energy ray curable ink (undried) and 0.2 cc using an RI tester. The film was developed at 1000 cm ^{2 and} irradiated with an active energy ray, and “gloss” was evaluated. The results are shown in Table 1. The RI tester is a tester that develops ink on paper or film, and can adjust the amount of ink transferred and the printing pressure.

<Evaluation of gloss value>
Measured with GLOSSSMETER (GM-26D) manufactured by Murakami Color Research Laboratory.
(Evaluation criteria)
○: Gloss value of 70 or more Δ: Gloss value of 60 or more and less than 70 ×: Gloss value of less than 60

<Evaluation of surface curability>
Using a high-power UV-LED irradiation device manufactured by Panasonic Electric Works Co., Ltd., irradiating ultraviolet rays while changing the conveyor speed (m / min) at an irradiation distance of 10 mm and a wavelength of 350 to 420 nm (center wavelength of 385 nm) The presence or absence of tack was confirmed by touching with a finger, and the fastest conveyor speed without tack was defined as “surface curing”, and evaluation was performed based on the following evaluation criteria. Here, it can be determined that the faster the conveyor speed, that is, the smaller the amount of irradiated light, the better the surface curability.
(Evaluation criteria)
○: There is no tack.
X: There is a tack.

From the results of Table 1, according to the examples of the present invention, the photopolymerization with respect to ultraviolet rays irradiated by a light emitting diode that emits ultraviolet rays having an emission peak wavelength in the range of 350 to 420 nm is excellent (surface curing) and gloss is excellent. It was found that an active energy ray-curable OP varnish can be obtained.

Claims (11)

In the active energy ray-curable ink containing a monomer having an ethylenically unsaturated double bond, (A) a photopolymerization initiator and an alcohol represented by the general formula (1),
(A) The photopolymerization initiator is
(A-1) an α-aminoalkylphenone compound,
and
(A-2) Acylphosphine oxide compound
An active energy ray-curable ink characterized by
General formula (1)

(A) The photopolymerization initiator is
The active energy ray-curable ink according to claim 1, further comprising (A-3) a thioxanthone compound and / or (A-4) a benzophenone compound. (A) The photopolymerization initiator is
The active energy ray-curable ink according to claim 1, further comprising (A-5) an alkyl phenyl ketone compound.   (A-1) The α-aminoalkylphenone compound is 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone-1,2-dimethylamino-2- (4-methyl-benzyl) 1 selected from -1- (4-morpholin-4-yl-phenyl) -butan-1-one and 2-methyl-1- [4- (methylthio) phenyl] -2-morpholinopropan-1-one The active energy ray-curable ink according to any one of claims 1 to 3, wherein the active energy ray-curable ink is one or more types.   (A-2) The acylphosphine oxide compound is 2,4,6-trimethylbenzoyl-diphenylphosphine oxide and / or bis (2,4,6-trimethylbenzoyl) -phenylphosphine oxide, The active energy ray-curable ink according to claim 1.   (A-3) The thioxanthone compound is selected from 2,4-diethylthioxanthone, 2,4-dimethylthioxanthone, 2,4-dichlorothioxanthone, 1-chloro-4-propylthioxanthone, 2-chlorothioxanthone and 2-isopropylthioxanthone The active energy ray-curable ink according to claim 2, wherein the active energy ray-curable ink is one or more types.   The activity according to any one of claims 2 to 6, wherein the (A-4) benzophenone compound is 4,4'-bis- (diethylamino) benzophenone and / or 4-benzoyl-4'-methyldiphenyl sulfide. Energy ray curable ink.   The (A-5) alkylphenyl ketone compound is one or more selected from 1-hydroxycyclohexyl phenyl ketone and 2-hydroxy-2-methyl-1-phenylpropan-1-one. The active energy ray-curable ink according to any one of the above.   The active energy ray-curable ink according to claim 1, further comprising a tertiary amine compound.   It prints using the active energy ray hardening-type ink in any one of Claims 1-9, The printed ink is hardened using an active energy ray, The manufacturing method of the ink cured material characterized by the above-mentioned.   Printed matter obtained by the method for producing an ink cured product according to claim 10.