WO2003093377A1 - Composition d'encre a sechage ultraviolet - Google Patents
Composition d'encre a sechage ultraviolet Download PDFInfo
- Publication number
- WO2003093377A1 WO2003093377A1 PCT/JP2003/005363 JP0305363W WO03093377A1 WO 2003093377 A1 WO2003093377 A1 WO 2003093377A1 JP 0305363 W JP0305363 W JP 0305363W WO 03093377 A1 WO03093377 A1 WO 03093377A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbon black
- ultraviolet
- acrylate
- ink composition
- metal
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 50
- 239000006229 carbon black Substances 0.000 claims abstract description 73
- 229910052751 metal Inorganic materials 0.000 claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 56
- 150000001875 compounds Chemical class 0.000 claims abstract description 50
- 239000002270 dispersing agent Substances 0.000 claims abstract description 33
- 229920000642 polymer Polymers 0.000 claims abstract description 30
- 150000003839 salts Chemical class 0.000 claims abstract description 24
- 239000003999 initiator Substances 0.000 claims abstract description 11
- 125000000524 functional group Chemical group 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 71
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 44
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 42
- 239000006185 dispersion Substances 0.000 claims description 33
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- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 claims 1
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- WLOQLWBIJZDHET-UHFFFAOYSA-N triphenylsulfonium Chemical compound C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 WLOQLWBIJZDHET-UHFFFAOYSA-N 0.000 description 1
- 239000012953 triphenylsulfonium Substances 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/36—Inkjet printing inks based on non-aqueous solvents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/324—Inkjet printing inks characterised by colouring agents containing carbon black
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2998—Coated including synthetic resin or polymer
Definitions
- the present invention relates to an ultraviolet-curable ink for ink-jet recording, and more particularly, to an ultraviolet-curable ink composition for ink-jet recording which uses carbon black as a coloring material and has excellent dispersion stability and ejection stability. . Background art
- Ink jet printing is a method in which ink is ejected from a nozzle and adheres to a recording material.Since the nozzle and the recording material are not in contact with each other, a curved or irregular irregular shape is formed. Good printing can be performed on the surface having the surface. For this reason, a wide range of applications are expected in industrial applications.
- the ink used in the ink jet recording system includes a water-based ink using water as a main solvent and an oil-based ink using an organic solvent as a main solvent as a dye using a dye as a coloring material. Is used. However, when conventional water-based dye inks are used in industrial applications, the slow drying speed of the ink on non-absorbing materials, the poor adhesion of printed images, and the abrasion, water and light resistance The ink has greatly improved the durability of these inks. As inks that have greatly improved these properties, water-based and oil-based UV-curable inks that cure and dry with active energy rays such as ultraviolet rays using color pigments as coloring materials Ink jet recording inks have been proposed.
- Japanese Patent Application Laid-Open No. 2001-525479 examples include a car pump rack, a dispersant, and a dispersion aid.
- An ink using an amine salt of copper phthalocyanine sulfonate has been proposed, and Japanese Patent Application Laid-Open No. 2001-207098 introduced a phthalide imidomethyl group, amino group, and triazine group as a pigment dispersant as a functional group.
- An ink using a copper phthalocyanine derivative has been proposed (however, Japanese Patent Application Laid-Open No.
- An object of the present invention is to provide an ultraviolet-curable ink jet recording ink composition in which carbon black is stably dispersed, and excellent in dispersion stability and ejection stability, and a method for producing the ink composition. . Disclosure of the invention
- a first aspect of the present invention relates to an ultraviolet-curable ink composition for recording an inkjet containing carbon black, a photopolymerizable compound and a photopolymerization initiator, comprising a metal-free phthalocyanine.
- Sulfonic acid and the central metal is Cu, Fe, N! , Co, and at least one selected from the group consisting of metal phthalocyanine sulfonic acids and metal salts thereof, and a polymer dispersant having a basic functional group.
- This is an ink composition for recording an ultraviolet curable ink jet.
- the metal-free phthalocyanine sulfonic acid which is a dispersing aid on the surface of carbon black, and the central metal is Cu, Fe, N, Co, or any of metal phthalocyanines of Ti Sulfonic acid or a metal salt thereof is adsorbed, and a polymer dispersant having a basic functional group is strongly adsorbed through the adsorbed sulfonic acid or metal salt thereof, so that good and stable dispersion of carbon black can be realized. it can.
- these dispersing aids are hydrophilic, compared to lipophilic dispersing aids, It is hardly detached from carbon black in the photopolymerizable compound, and has a great effect on the dispersion stability of carbon black.
- a second aspect of the present invention is a method for preparing a metal-free phthalocyanine sulfonic acid, a metal phthalocyanine sulfonic acid having a central metal of Cu, Fe, ⁇ , Co, or Ti, and a metal salt thereof.
- a process for producing an ultraviolet-curable ink jet recording ink composition comprising the steps of:
- the polymer dispersant is firmly adsorbed to the carbon black via the dispersing aid, and is dispersed in the photopolymerizable compound by the dispersion stabilizing effect due to steric hindrance.
- the carbon black disperses stably.
- carbon black There are three basic properties of carbon black: specific surface area, structure, and surface chemical properties. The proper properties are selected according to the intended use.
- a carbon black having a large BET specific surface area and a small particle diameter is preferable from the viewpoint of obtaining good ejection stability, and a carbon black of 200 to 300 m 2 / g. Those in the range can be suitably used. If the BET specific surface area value is smaller than 200 m 2 Z g , the particle diameter is large and the ejection stability tends to be insufficient. Also, the image density tends to be insufficient as compared with the dye ink.
- the BET specific surface area exceeds 300 m 2 g
- the particle size is too small, and it is difficult to obtain good dispersion stability.
- dispersion of the carbon black becomes more difficult as the particle size becomes finer, Li by the use of the above polymeric dispersing agent and dispersion aid, the carbon black high BET value exceeding such 200 meters 2 Z g may, light Good dispersion in the polymerizable compound can be achieved, and high image quality equivalent to that of an ink jet recording ink using a dye can be realized.
- the structure 1 represents a fusion state between carbon black particles and is quantified by the DBP oil absorption.
- the carbon black used in the present invention include: affinity for a photopolymerizable compound such as (meth) acrylate as a dispersion medium, metal-free phthalocyanine sulfonic acid, metal phthalocyanine sulfonic acid, or a metal salt thereof. It is preferable to use carbon black having a DBP oil absorption of 100 g or less, more preferably 50 to 100 g of oil, with a DBP oil absorption of 100 g or less. If the DBP oil absorption exceeds 1 O Om 110 Og, the dispersion stability of carbon black tends to be insufficient.
- the chemical properties of the surface of carbon black are represented by pH, and mainly, an acidic carbon black having a pH of 2 to 4 and a neutral or basic carbon black having a pH of 7 or more are used.
- pH of carbon black is preferably 7 or more, and pH 7 to More preferably, 9 basic carbon blacks are used.
- Carbon black is preferably used in the range of 2 to 10% by mass of the total amount of the ink.
- the metal-free phthalocyanine sulfonic acid, metal phthalocyanine sulfonic acid, and metal salts thereof used as a dispersing aid in the present invention are pigment derivatives having a phthalocyanine-based organic pigment residue, and are metal-free phthalocyanine or metal phthalocyanine. It can be synthesized by reacting phthalocyanine with concentrated sulfuric acid or the like by a known method.
- metal-free phthalocyanine sulfonic acid and metal salts of metal phthalocyanine sulfonic acid include alkali metals such as L i, N a, and K, C a, B a, AI, M n, S r, and M g And polyvalent metals such as Ni, ammonium salts and the like.
- the metal phthalocyanine in the present invention has a structure in which two hydrogen atoms at the center of the molecular structure of a metal-free phthalocyanine are substituted with a metal, and the metal includes Cu, Fe, Ni, Co, Ti.
- Cu is preferable, and copper phthalocyanine sulfonic acid and a metal salt of copper phthalocyanine sulfonic acid are suitably used.
- a mixture may be used by mixing with a photopolymerizable compound such as (meth) acrylate, carbon black, or a polymer dispersant at the time of dispersion.
- carbon black and metal-free phthalocyanine sulfonic acid, or metal phthalocyanine sulfonic acid, or a metal salt thereof are mixed in an aqueous medium, and then dried to adsorb these dispersing aids on the carbon black surface. It is preferable to produce and use surface-treated carbon black. By using such a surface treatment method, the hydrophilic dispersing agent can be uniformly adsorbed on the entire surface of the carbon black.
- the amount of the metal-free phthalocyanine sulfonic acid, the metal phthalocyanine sulfonic acid, or the metal salt thereof is preferably in the range of 2 to 15% by mass based on the carbon black, and particularly preferably 4 to 1%. It is preferably in the range of 0% by mass. If the amount is too small, the combined effect as a dispersing aid is not easily exhibited, and if it is too large, an excessive amount of undissolved components may adversely affect the ejection stability.
- the aqueous medium is purified water or a mixed liquid of purified water and a water-soluble organic solvent, and is particularly preferably purified water or a mixed liquid of a lower alcohol such as methanol or ethanol and purified water.
- the polymer dispersant used in the present invention has a basic functional group, and can be used as a dispersing aid in the form of a metal-free phthalocyanine sulfonic acid, a metal phthalocyanine sulfonic acid, or a metal salt thereof via a metal salt.
- a metal-free phthalocyanine sulfonic acid By adsorbing on black, good dispersion stability can be imparted to the carbon black.
- the basic functional group include a primary, secondary, or tertiary amino group, and a nitrogen-containing heterocyclic ring such as pyridine, pyrimidine, and pyrazine.
- the amount of the polymer dispersant added is preferably in the range of 10 to 80% by mass, and more preferably in the range of 20 to 60% by mass, based on the pigment. If the amount is less than 10% by mass, the dispersion stability tends to be insufficient, and if it exceeds 80% by mass, the viscosity of the ink tends to be high, and the re-discharge stability tends to deteriorate. If the polymer dispersant is not dissolved, the polymer chain will not elongate, and the adsorption point on the pigment will not be exposed.
- the photopolymerizable compounds used in the present invention are classified into radical polymerizable compounds and cationic polymerizable compounds according to their reaction mechanisms. Both known photopolymerizable compounds can be widely used.
- radical polymerization type photopolymerizable compound used in the present invention for example, a monofunctional (meth) acrylate or a polyfunctional (meth) acrylate can be used alone or in combination of two or more kinds.
- Examples of the monofunctional (meth) acrylate that can be used in the present invention include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, butyl (meth) acrylate, amyl (meth) acrylate, and 2-ethyl.
- polyfunctional (meth) acrylates examples include 1,3-butyleneglycol, 1,4-butanediol, 1,5-pentanediol, 3-methyl-1-, 5-pentanediol, 1,6-hexanediol, neopentyl glycol, 1,8-octanediol, 1,9-nonanediol, tricyclodecanedimethanol, ethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, Di (meth) acrylate such as tripropylene glycol, polypropylene glycol, etc., tris (2-hydroxyshethyl) isocyanurate di (meth) acrylate, neopentyl glycol More than 4 moles of ethylene oxide or propylene oxide in 1 mole Of the diol obtained by adding
- (Meth) acrylate bisphenol A Di (meth) acrylate of diol obtained by adding 2 moles of ethylene oxide or propylene oxide to 1 mole, 3 moles or more of ethylene oxide in 1 mole of trimethylolpropane Or di- or tri (meth) acrylate of triol obtained by adding propylene oxide, or diol obtained by adding 4 moles or more of ethylene oxide or propylene oxide to 1 mole of bisphenol A Di (meth) acrylate, trimethylolpropanetri (meth) acrylate, pentaerythryl I ⁇ Itritoli (meth) acrylate, dipentaerythryl I poly (meth) acrylate, ethylene oxide modified phosphate (meth) acrylate, ethylene oxide modified Alkyl Phosphate (meth) Akurireto the like.
- Specific examples of the representative cationically polymerizable photopolymerizable compound used in the present invention include an epoxy compound and a vinyl ether compound.
- epoxy compounds include: : Nol A type epoxy compound, bisphenol F type epoxy compound, phenol nopolak type epoxy compound, aliphatic epoxy compound such as trimethylolpropane polyglycidyl ether, neopentyl glycol diglycidyl ether, etc., Daicel Chemical Industries, Ltd. ), Alicyclic epoxy compounds such as 2000, 300, and 400.
- the vinyl ether compound examples include 2-hydroxyethyl vinyl ether, triethylene glycol vinyl monoether, tetraethylene glycol divinyl ether, and trimethylolpropane trivinyl ether.
- the photopolymerizable compound used in the present invention preferably contains a photopolymerizable compound that dissolves the polymer dispersant. In order to obtain particularly good dispersion stability, the polymer dispersant is added in an amount of 30% by weight. % Or more preferably contains a photopolymerizable compound. When such a photopolymerizable compound is contained, it is not necessary to add a new non-reactive diluting solvent for dissolving the polymer dispersant, and the curability and durability of the cured film are reduced. There is no fear.
- radical polymerizable photopolymerizable compound examples include 2-hydroxy-3-phenoxypropyl (meth) acrylate and tetrafurfuryl (meth) acrylate.
- One example is neopentyl glycol (meth) acrylate, 2-hydroxyshethyl (meth) acrylate, and benzyl (meth) acrylate. Of these, 2-hydroxy-1-3-phenoxypropyl acrylate is particularly preferable.
- acrylate and metaacrylate are collectively referred to as (meth) acrylate. It is preferable that the content of the (meth) acrylate that dissolves these polymer dispersants is equal to or more than the content of the polymer dispersants in the ink.
- a low-viscosity alicyclic epoxy compound As the cationically polymerizable photopolymerizable compound that dissolves the polymer dispersant, it is preferable to use a low-viscosity alicyclic epoxy compound, and specific examples include celloxide 300.
- non-reactive diluting solvents such as water and organic solvents reduces the abrasion resistance, water resistance and solvent resistance of printed matter.
- a photopolymerizable compound that dissolves a polymer dispersant in this way a black ink composition for ultraviolet curable ink jet recording that does not substantially contain a non-reactive diluting solvent in the ink composition can be obtained. Can be made. Therefore, no solvent remains in the printed matter, and no smell of the solvent is generated.
- non-reactive means having no photopolymerizability.
- the term “substantially not contained” means that the amount is not usually used as a diluting solvent for the polymer dispersant. It means that it contains only a much smaller amount. It does not affect the strength of the coating film, the curability of the film, or the durability. It means that it contains only a small amount.
- the content of the non-reactive diluting solvent is preferably about 0.5% by weight or less of the ink composition, The content is more preferably about 0.1% by weight or less, and most preferably about 0.1% by weight or less.
- both a radical polymerization type photopolymerizable compound and a cation polymerizable photopolymerizable compound can be used as the photopolymerizable compound.
- a radical polymerizable compound (meth) acrylate as the photopolymerizable compound.
- a polyurethane (meth) acrylate is contained in an ultraviolet curable composition comprising a radical polymerization type photopolymerizable compound.
- the reason that the ultraviolet curable composition containing a polyurethane (meth) acrylate exhibits good curability is that the terminal double bond of the polyurethane (meth) acrylate is higher than that of a general (meth) acrylate terminal double bond.
- Polyurethane (meth) acrylate used for ink jet is low in viscosity, or easily crystallized, etc., but diluted with (meth) acrylate even if the viscosity of polyurethane (meth) acrylate itself is high. It is necessary to lower the viscosity.
- polyurethane (meth) acrylate obtained by reacting polyisocyanate with hydroxy (meth) acrylate without using a polyol such as long-chain polyether or polyester.
- the polyurethane (meth) acrylate is preferably used in an amount of 3 to 15% based on the total amount of the ultraviolet curable composition from the viewpoint of the viscosity and curability of the jet ink composition.
- photo-radical polymerization initiator used in the present invention any known and commonly used ones capable of curing the ultraviolet-curable compound used in the present invention can be used.
- photopolymerization initiator a molecular cleavage type or a hydrogen abstraction type is suitable for the present invention.
- the photo-radical polymerization initiator used in the present invention includes, as molecular cleavage type, benzoin isobutyl ether, 2,4-dimethylthioxanthone, 2-isopropylthioxanthone, benzyl, 2,4,6-trimethyl Benzyldiphenylphosphinoxide 6-trimethylbenzoyldiphenylphosphinoxide, 2-benzyl-12-dimethylamino-11- (4-morpholinophenyl) -butane-11-one, bis (2,6-Dimethoxybenzoyl) 1,2,4,4-trimethylpentyl phosphinoxide and the like are preferably used.
- molecular-cleavable types such as 1-hydroxycyclohexyl phenyl ketone, Benzoineethyl ether, benzyldimethyl ketal, 2-hydroxy-1-2-methyl-1-phenylpropane 1-one, 1- (4-isopropylphenyl)-2-hydroxy-1- 2-methylpropane 1-one and 2-methyl-1- (4-methylthiophenyl) _ 2-morpholinopropane 1-one Etc.
- hydrogen abstraction type photopolymerization initiators such as benzophenone, 4-phenylbenzophenone, isophthalphenone, 4-benzoyl-4'-methyldiphenyl sulfide, and the like can be used in combination.
- sensitizers such as trimethylamine, methyldimethanolamine, triethanolamine, p-ethylaminoacetophenone, p-dimethylaminoethyl benzoate, p-dimethylaminobenzoate, Amines that do not cause an addition reaction with the above-mentioned polymerizable component, such as N, N-dimethylpendiamine and 4,4′-bis (getylamino) benzophenone, can also be used in combination.
- the photoradical polymerization initiator and the sensitizer that have excellent solubility in the ultraviolet curable compound and do not inhibit the ultraviolet transmittance.
- the photo-radical polymerization initiator and the sensitizer are used in the range of 0.1 to 20% by mass, preferably 4 to 12% by mass, based on the total amount of the ultraviolet curable composition.
- any known and commonly used one capable of curing the ultraviolet curable compound used can be used.
- polyarylsulfonium salts such as triphenylsulfonium hexafluoroantimonate, triphenylsulfonium hexafluorosulfonate, diphenyl sulfonic acid, etc .
- polyaryldonium salts such as dimethylhexafluoroantimonate and P-nonylphenyl ediodium hexafluoroantimonate.
- These photoinitiated thione polymerization initiators may be used in combination of two or more.
- the photothion polymerization initiator is used in the range of 0.1 to 20% by mass, preferably 1 to 10% by mass, based on the total amount of the ultraviolet curable composition.
- the ink composition of the present invention may contain a non-reactive resin, an additive and the like for the purpose of adjusting the surface tension, imparting adhesiveness to a printing material, and the like.
- the ultraviolet-curable jet ink composition of the present invention comprises a step of collectively blending carbon black, a polymer dispersant, a dispersing aid, a photopolymerizable compound, etc., and dispersing carbon black in the photopolymerizable compound. Can also be manufactured. However, as described above, it is preferable to perform a surface treatment of carbon black with a dispersion aid in advance. That is, first, carbon black and at least one selected from the group consisting of metal-free phthalocyanine sulfonic acid, metal phthalocyanine sulfonic acid, and metal salts thereof are stirred and mixed in an aqueous medium.
- a high-concentration pigment dispersion (mill base) is prepared in advance using an ordinary disperser such as a bead mill, and then a photopolymerizable compound such as (meth) acrylate, in which a photopolymerization initiator is dissolved, and additives are stirred. It can also be manufactured by mixing.
- a mill base was prepared in the same manner as in Mill Base Preparation Example 1, except that the surface-treated carbon black of Preparation Example 2 was used instead of the surface-treated carbon black used in Mill Base Preparation Example 1.
- a mill base was prepared in the same manner as in Mill Base Preparation Example 1, except that the surface-treated carbon black of Preparation Example 3 was used instead of the surface-treated carbon black used in Mill Base Preparation Example 1.
- a mill base was prepared in the same manner as in Mill Base Preparation Example 1, except that untreated # 960 was used instead of the surface-treated carbon black used in Mill Base Preparation Example 1.
- Millbase comparative preparation example 2
- a mill base was prepared in the same manner as in Mill Base Preparation Example 1, except that untreated # 970 was used instead of the surface-treated carbon black used in Mill Base Preparation Example 1.
- Example 3 Using the mill base of Preparation Example 3 in place of the mill base of Preparation Example 1 used in Example 1, an ink jet recording ink was produced in the same manner as in Example 1.
- Example 4 Using the mill base of Preparation Example 4 instead of the mill base of Preparation Example 1 used in Example 1, an ink jet recording ink was produced in the same manner as in Example 1.
- Example 3 An ink jet recording ink was prepared in the same manner as in Example 1 except that the mill base of Comparative Preparation Example 2 was used instead of the mill base of Preparation Example 1 used in Example 1. (Comparative Example 3)
- Example 1 An ink jet recording ink was produced in the same manner as in Example 1, except that the mill base of Comparative Preparation Example 3 was used instead of the mill base of Preparation Example 1 used in Example 1.
- the ink jet recording inks of Examples 1 to 4 and Comparative Examples 1 to 3 were evaluated for initial dispersibility, dispersion stability, ejection properties, and curability by the following methods. Table 1 shows the results.
- the particle size of the ink jet recording ink was measured using a Microtrac UPA particle size analyzer (Leed &. Northr ⁇ p).
- the viscosity at 25 ° C. was measured initially, after storage at 60 ° C. for 14 days, and after storage at 60 ° C. for 30 days using an E-type viscometer, and the dispersion stability was evaluated from the change in viscosity.
- the evaluation was performed in the following three stages.
- Printing was carried out using an ink jet printer having a piezo head maintained at a head temperature of 45 ° C., and the printed state of the recorded matter was visually evaluated in two steps.
- the thing printed on the glass surface was irradiated with ultraviolet rays under a condition of 0.5 JZcm 2 using a metal halide lamp of 120 WZcm and a conveyor type UV irradiation apparatus, and the cured state of the printed film was evaluated by methanol rubbing.
- Methanol rubbing evaluation Press a cotton swab impregnated with methanol onto printed matter, Rub left and right, and count the number of passes of the swab until the printed film is peeled off or thinned.
- the inks of Examples 1 and 2 all have good initial dispersibility, ejection properties, dispersion stability (viscosity change), and curability, whereas metal-free phthalocyanine sulfonic acid, metal phthalocyanine sulfonic acid, or The inks of Comparative Examples 1, 2, and 3, which did not contain any of these metal salts, had poor dispersion stability, and also had poor ink ejection properties after storage at 60 ° C. for 14 days.
- the ink of Example 3 using an acidic carbon black having a pH of 3.5 and the ink of Example 4 using a basic black ink having a DBP oil absorption of 113 mIZ100 g Dispersion stability as high as Example 1 and Example 2 was not obtained.
- Industrial applicability The ultraviolet-curable black ink composition for ink jet recording of the present invention has excellent initial dispersibility, dispersion stability, ejection properties, and curability, and is suitable for printing on various printing materials.
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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)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US10/510,717 US7135504B2 (en) | 2002-04-30 | 2003-04-25 | Ink composition for ultraviolet curable ink-jet recording |
EP03723209.7A EP1502935B1 (en) | 2002-04-30 | 2003-04-25 | Ultraviolet-curable ink composition for ink-jet recording |
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JP2002-128296 | 2002-04-30 | ||
JP2002128296 | 2002-04-30 |
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WO2003093377A1 true WO2003093377A1 (fr) | 2003-11-13 |
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PCT/JP2003/005363 WO2003093377A1 (fr) | 2002-04-30 | 2003-04-25 | Composition d'encre a sechage ultraviolet |
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US (1) | US7135504B2 (ja) |
EP (1) | EP1502935B1 (ja) |
CN (1) | CN100547039C (ja) |
WO (1) | WO2003093377A1 (ja) |
Cited By (1)
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EP1657285A1 (en) * | 2004-10-20 | 2006-05-17 | Fuji Photo Film Co., Ltd. | Ink composition for ink jet recording and ink jet recording method |
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GB0324749D0 (en) * | 2003-10-23 | 2003-11-26 | Avecia Ltd | Compositions |
WO2006075468A1 (ja) * | 2005-01-11 | 2006-07-20 | Konica Minolta Medical & Graphic, Inc. | 活性光線硬化型インクジェットインク、それを用いた画像形成方法及びインクジェット記録装置 |
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JP2001207098A (ja) * | 2000-01-31 | 2001-07-31 | Toyo Ink Mfg Co Ltd | 活性エネルギー線硬化型インクジェットインキ |
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GB9725929D0 (en) | 1997-12-05 | 1998-02-04 | Xaar Plc | Radiation curable ink jet ink compositions |
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- 2003-04-25 EP EP03723209.7A patent/EP1502935B1/en not_active Expired - Lifetime
- 2003-04-25 WO PCT/JP2003/005363 patent/WO2003093377A1/ja active Application Filing
- 2003-04-25 US US10/510,717 patent/US7135504B2/en not_active Expired - Lifetime
- 2003-04-25 CN CNB038095289A patent/CN100547039C/zh not_active Expired - Lifetime
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JP2001207098A (ja) * | 2000-01-31 | 2001-07-31 | Toyo Ink Mfg Co Ltd | 活性エネルギー線硬化型インクジェットインキ |
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EP1657285A1 (en) * | 2004-10-20 | 2006-05-17 | Fuji Photo Film Co., Ltd. | Ink composition for ink jet recording and ink jet recording method |
Also Published As
Publication number | Publication date |
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US7135504B2 (en) | 2006-11-14 |
EP1502935A1 (en) | 2005-02-02 |
CN100547039C (zh) | 2009-10-07 |
CN1649974A (zh) | 2005-08-03 |
EP1502935B1 (en) | 2017-12-20 |
US20050119363A1 (en) | 2005-06-02 |
EP1502935A4 (en) | 2005-08-10 |
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