WO2014122945A1 - Composition d'encre, jeu d'encres, procédé d'impression par jet d'encre et article coloré - Google Patents

Composition d'encre, jeu d'encres, procédé d'impression par jet d'encre et article coloré Download PDF

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Publication number
WO2014122945A1
WO2014122945A1 PCT/JP2014/050222 JP2014050222W WO2014122945A1 WO 2014122945 A1 WO2014122945 A1 WO 2014122945A1 JP 2014050222 W JP2014050222 W JP 2014050222W WO 2014122945 A1 WO2014122945 A1 WO 2014122945A1
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Prior art keywords
ink
ink composition
jet recording
ink jet
colorant
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PCT/JP2014/050222
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English (en)
Japanese (ja)
Inventor
竜 石井
波 崔
俊太 三澤
明央 桑原
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日本化薬株式会社
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Priority to JP2014560693A priority Critical patent/JP6321555B2/ja
Publication of WO2014122945A1 publication Critical patent/WO2014122945A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C09D11/32—Inkjet printing inks characterised by colouring agents
    • C09D11/322—Pigment inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C09D11/40—Ink-sets specially adapted for multi-colour inkjet printing

Definitions

  • the present invention relates to an ink composition used for an ink jet recording method, an ink set provided with the ink composition, an ink jet recording method, and a colored body.
  • colorants used in inkjet inks.
  • a recorded image using a dye as a colorant is excellent in image quality such as sharpness
  • a recorded image using a pigment as a colorant is excellent in various fastness properties to light, ozone, water, and the like.
  • ink-jet ink pigment ink for ink-jet
  • cyan pigments and magenta pigments are known to be excellent in both color developability and light fastness, but yellow pigments having such properties are not well known.
  • yellow pigments include C.I. I. Pigment Yellow 74 is widely used. However, although this pigment is excellent in color developability, it is said to have low light resistance.
  • the present invention relates to a yellow ink composition excellent in water resistance of images recorded on various recording materials while maintaining performance equal to or better than conventional ones in light resistance and color development, and the ink composition It is an object of the present invention to provide an ink set using a yellow ink composition, an ink jet recording method using the ink composition or ink set, and a colored body obtained by using the ink composition or ink set.
  • the present inventors have found that the ink composition for ink jet recording contains at least two specific first and second colorants, a water-soluble organic solvent, and water.
  • the inventors have found that the above problems can be solved and completed the present invention. That is, the present invention relates to the following [1] to [18].
  • An ink composition for ink jet recording containing at least the first and second colorants, a water-soluble organic solvent, and water,
  • the first colorant is C.I. I. Pigment Yellow 213 or 120
  • the second colorant is C.I. I.
  • An ink composition for inkjet recording which is one or more pigments selected from the group consisting of CI Pigment Yellow 74 and 151.
  • [2] The ink composition for ink jet recording according to the above [1], wherein the total content of the colorant is 0.5 to 7% by mass.
  • the water-soluble organic solvent is at least one water-soluble organic solvent selected from the group consisting of glycol ethers and alkanediols. object.
  • the glycol ether is at least one selected from the group consisting of ethylene glycol monoallyl ether, ethylene glycol monoisopropyl ether, diethylene glycol monomethyl ether, and propylene glycol monopropyl ether.
  • the alkanediol is 1,2-pentanediol, 1,2-hexanediol, 2-methyl-2,4-pentanediol, 2-ethyl-1,3-hexanediol, and 2,4-diethyl-1
  • the ink composition for ink jet recording according to the above [5] or [6] which is at least one selected from the group consisting of 5-pentanediol.
  • An ink set for inkjet recording comprising at least each of the ink compositions of a yellow ink composition, a cyan ink composition, a magenta ink composition, and a black ink composition
  • An ink set for ink jet recording using the ink composition for ink jet recording according to any one of [1] to [7] as the yellow ink composition.
  • Recording is performed by using the ink composition for ink jet recording according to any one of the above [1] to [7] as an ink, and ejecting ink droplets according to a recording signal to adhere to the recording material.
  • An ink jet recording method is performed by using the ink composition for ink jet recording according to any one of the above [1] to [7] as an ink, and ejecting ink droplets according to a recording signal to adhere to the recording material.
  • a yellow ink composition excellent in water resistance of images recorded on various recording materials while maintaining performance equal to or better than conventional ones in light resistance and color developability and the ink composition Can be provided as a yellow ink composition, an ink jet recording method using the ink composition or the ink set, and a colored product obtained by the ink composition or the ink set.
  • CI is an abbreviation for color index.
  • % and “part” numbers are described on a mass basis unless otherwise specified.
  • the first colorant contained in the ink composition is C.I. I. Pigment yellow 213 or 120, and the former is preferable.
  • the second colorant is C.I. I. One or more pigments selected from the group consisting of CI Pigment Yellow 74 and 151. Both of the second colorants may be blended, but each is preferably used alone, and more preferably the former is used alone.
  • the total content of the colorant contained in the ink composition is usually 0.5 to 7%, preferably 1 to 7%, more preferably 2 to 7%, and further preferably 3 to 7%. When it is 0.5% or more, the color density of the recorded image is good, and when it is 7% or less, the discharge property is good.
  • the content of the first colorant in the total mass of the colorant contained in the ink composition is usually 10 to 90%, preferably 20 to 80%, more preferably 25 to 75%, and further It is preferably 30 to 70%, particularly preferably 40 to 60%. By setting it as this range, it becomes easy to improve water resistance, maintaining light resistance and coloring property.
  • the content of the second colorant in the total mass of the colorant contained in the ink composition is usually 10 to 90%, preferably 20 to 80%, more preferably 25 to 75%, and further It is preferably 30 to 70%, particularly preferably 40 to 60%. By setting it as this range, it becomes easy to improve water resistance, maintaining light resistance and coloring property.
  • water-soluble organic solvent contained in the ink composition include, for example, C1-C6 alkanols such as methanol, ethanol, propanol, isopropanol, butanol, isobutanol, sec-butanol, and tert-butanol; N, N— Carboxylic acid amides such as dimethylformamide and N, N-dimethylacetamide; Lactams such as 2-pyrrolidone, N-methyl-2-pyrrolidone and N-methylpyrrolidin-2-one; 1,3-dimethylimidazolidin-2-one Cyclic ureas such as 1,3-dimethylhexahydropyrimido-2-one; ketones or ketoalcohols such as acetone, 2-methyl-2-hydroxypentan-4-one, ethylene carbonate; tetrahydrofuran, dioxane, etc.
  • C1-C6 alkanols such as methanol, ethanol, propan
  • Cyclic ether ethylene glycol, diethylene Recall, 1,2-propylene glycol, 1,3-propylene glycol, 1,2-butylene glycol, 1,4-butylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, polyethylene glycol (preferably molecular weight 400, 800, 1540 or more), mono-, oligo-, or polyalkylene glycols or thioglycols having C2-C6 alkylene units such as polypropylene glycol, thiodiglycol, dithiodiglycol, etc .; glycerin, diglycerin, hexane -C3-C9 polyols (triols) such as 1,2,6-triol and trimethylolpropane; ethylene glycol monomethyl ether, ethylene glycol monoethyl ether Ter, ethylene glycol monoallyl ether, ethylene glycol monoisopropyl ether, diethylene glycol monomethyl
  • the water-soluble organic solvent it is preferable to use at least one water-soluble organic solvent selected from the group consisting of glycol ether and alkanediol.
  • the glycol ether is more preferably at least one selected from the group consisting of ethylene glycol monoallyl ether, ethylene glycol monoisopropyl ether, diethylene glycol monomethyl ether, and propylene glycol monopropyl ether.
  • alkanediol examples include 1,2-pentanediol, 1,2-hexanediol, 2-methyl-2,4-pentanediol, 2-ethyl-1,3-hexanediol, and 2,4-diethyl- More preferably, it is at least one selected from the group consisting of 1,5-pentanediol.
  • the ink composition preferably further contains a dispersant in order to stabilize the dispersion state of the contained pigment.
  • dispersant examples include styrene and derivatives thereof; vinyl naphthalene and derivatives thereof; aliphatic alcohol esters of ⁇ , ⁇ -ethylenically unsaturated carboxylic acids; acrylic acid and derivatives thereof; maleic acid and derivatives thereof; itaconic acid and derivatives thereof; Fumaric acid and derivatives thereof; vinyl acetate, vinyl alcohol, vinyl pyrrolidone, acrylamide, and derivatives thereof; at least two monomers selected from the group consisting of monomers (preferably at least one of which is hydrophilic) A copolymer (a block copolymer, a random copolymer, a graft copolymer), and / or a salt thereof.
  • the above various copolymers and / or salts thereof may be used alone or in combination of two or more.
  • the weight average molecular weight of the dispersant is about 1000 to 30000, preferably about 1250 to 25000, more preferably about 1500 to 20000.
  • the acid value is about 80 to 300, preferably 90 to 275, more preferably about 100 to 250.
  • the dispersant can also be obtained as a commercial product, and specific examples thereof include Jonkrill TM 61J, 67, 68, 450, 55, 555, 586, 678, 680, 682, all manufactured by BASF. 683, 690, B-36; In the present specification, the superscript “TM” means a trademark.
  • the amount of the dispersant used is usually 0.1 to 20%, preferably 0.5 to 16%, based on the total mass of the pigment, as a mass ratio in terms of solid content when preparing the dispersion. Preferably, it is 1 to 14%.
  • a so-called surface-treated pigment self-dispersed pigment in which a dispersibility-imparting group is chemically introduced directly onto the pigment particle surface
  • a so-called microcapsule pigment in which a pigment is coated with the above-described dispersant or the like may be used.
  • the ink composition may contain a penetrant for the purpose of increasing the wettability of the ink composition with respect to the recording medium and enhancing the penetrability.
  • the penetrant include various surfactants described later.
  • the water-soluble organic solvents include those that can be expected to have an effect of adjusting the permeability. Examples of such water-soluble organic solvents include C1-C6 alkanol, glycol ether, and C5-C9 alkanediol. Of these, glycol ether and C5-C9 alkanediol are preferred.
  • an antifoaming agent may be contained.
  • antifoaming agent examples include silicone-based, silica mineral oil-based, olefin-based, and acetylene-based.
  • examples of commercially available antifoaming agents include Surfinol TM DF37, DF58, DF110D, DF220, MD-20, and Olphin TM SK-14, all manufactured by Shin-Etsu Chemical Co., Ltd. These antifoaming agents may be used alone or in combination of two or more.
  • the addition amount of the antifoaming agent is preferably 0.01 to 5%, more preferably 0.03 to 3%, and further preferably 0.05 to 1%.
  • the effect as an antifoamer becomes favorable by setting it as 0.01% or more, and dispersion stability becomes favorable by setting it as 5% or less.
  • the ink composition may be used alone, it is used as a yellow ink composition for the purpose of obtaining a full-color recorded image, for example, for inkjet recording comprising a cyan ink composition, a magenta ink composition, and a black ink composition. It may be used as an ink set.
  • the colorant contained in each of the cyan, magenta, and black ink compositions is not particularly limited, and a known pigment can be arbitrarily used.
  • a violet, orange-brown, green, or other ink composition is optionally added. It is good.
  • the pigment mainly includes inorganic pigments, organic pigments, extender pigments, etc., and any pigment can be used. These pigments can also be combined. For example, an organic pigment and an extender pigment may be blended.
  • organic pigments contained in the ink compositions of cyan, magenta, black, violet, orange to brown, and green include C.I. I. Pigment Blue 1, 2, 3, 15, 15: 1, 15: 2, 15: 3, 15: 4, 15: 6, 16, 22, 25, 60, 66, 80, etc. cyan (blue) pigments C. I. Pigment Red 5, 7, 12, 48, 48: 1, 57, 88, 112, 122, 123, 146, 149, 166, 168, 177, 178, 179, 184, 185, 202, 206, 207, 254, Magenta (red) pigments such as 255, 257, 260, 264, 272; I. Pigment Black 1 and other black pigments; C.I. I.
  • Pigment Violet 19, 23, 29, 37, 38, 50 and the like violet pigments C.I. I. Pigment Orange 13, 16, 68, 69, 71, 73, etc. Orange to brown pigments; C.I. I. Pigment Green 7, 36, 54, etc. Green pigments;
  • inorganic pigments include carbon black, metal oxide, metal hydroxide, metal sulfide, metal ferrocyanide, and metal chloride.
  • carbon black is preferred as the pigment contained in the black ink composition.
  • examples of carbon black include thermal black and acetylene black obtained by a pyrolysis method; oil furnace black, gas furnace black, lamp black, gas black, and channel black obtained by an incomplete combustion method. One kind of these carbon blacks may be used, or a plurality of carbon blacks may be used in combination. Of these, gas furnace black, lamp black, acetylene black, and channel black are preferable.
  • the carbon black is easily available as a commercial product.
  • organic pigments examples include soluble azo pigments, insoluble azo pigments, insoluble diazo pigments, condensed azo pigments, phthalocyanine pigments, quinacridone pigments, isoindolinone pigments, dioxazine pigments, perylene pigments, perinone pigments, thioindigo pigments, anthraquinone pigments, quinophthalone. And pigments.
  • One kind of these organic pigments may be used, or a plurality of organic pigments may be used in combination.
  • the above inorganic pigments can also be used, and extender pigments and the like can also be used for improving fluidity.
  • extender pigments examples include silica, calcium carbonate, talc, clay, barium sulfate, and white carbon. These extender pigments are not used alone and are usually used in combination with an inorganic pigment or an organic pigment.
  • Each of the above pigments may be used alone, or two or more of an inorganic pigment and / or an organic pigment may be used in combination for adjusting the hue of the image.
  • the main purpose of the hue adjustment here is to darken the recorded image; to widen the color gamut;
  • the storage stability of the ink composition as the dispersion may be improved, and this may be aimed at.
  • the pigment content in the total mass of the cyan, magenta, and black ink compositions is usually 1 to 30%, preferably 1 to 10%, more preferably 2 to 7%.
  • the pH of the ink composition is preferably pH 5 to 11 and more preferably pH 7 to 10 for the purpose of improving storage stability.
  • the surface tension of the ink composition is preferably 10 to 50 mN / m, more preferably 20 to 40 mN / m.
  • the viscosity of the ink composition is preferably 30 mPa ⁇ s or less, and more preferably 20 mPa ⁇ s or less.
  • the content of inorganic impurities such as metal cation chloride (for example, sodium chloride); sulfate (for example, sodium sulfate) in the ink composition is small. preferable.
  • Inorganic impurities are often mixed in the pigment bulk powder that is a colorant, and it is also preferable to purify the pigment bulk powder as necessary.
  • As a standard of the content of inorganic impurities it is about 1% or less with respect to the total mass of the pigment, and the lower limit may be below the detection limit of the analytical instrument, that is, 0%.
  • a dried pigment product or a wet cake is prepared by using a suitable water-soluble organic solvent (for example, C1-C4 alcohol such as methanol), and if necessary, a water-soluble organic solvent and water. And desalting by a method of filtering and separating the precipitate and drying; a method of exchanging and adsorbing inorganic impurities with an ion exchange resin; and the like.
  • a suitable water-soluble organic solvent for example, C1-C4 alcohol such as methanol
  • antifungal agent examples include sodium dehydroacetate, sodium benzoate, sodium pyridinethione-1-oxide, ethyl p-hydroxybenzoate, 1,2-benzisothiazolin-3-one and salts thereof. .
  • preservative examples include, for example, organic sulfur, organic nitrogen sulfur, organic halogen, haloaryl sulfone, iodopropargyl, haloalkylthio, nitrile, pyridine, 8-oxyquinoline, benzo Thiazole, isothiazoline, dithiol, pyridine oxide, nitropropane, organotin, phenol, quaternary ammonium salt, triazine, thiazine, anilide, adamantane, dithiocarbamate, brominated indanone , Benzyl bromacetate compounds, inorganic salt compounds and the like.
  • organic halogen compounds include sodium pentachlorophenol
  • pyridine oxide compounds include, for example, sodium 2-pyridinethiol-1-oxide.
  • isothiazoline compounds Are, for example, 1,2-benzisothiazolin-3-one, 2-n-octyl-4-isothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one, 5-chloro-2 -Methyl-4-isothiazolin-3-one magnesium chloride, 5-chloro-2-methyl-4-isothiazolin-3-one calcium chloride, 2-methyl-4-isothiazolin-3-one calcium chloride and the like.
  • antiseptic / antifungal agents include anhydrous sodium acetate, sodium sorbate, sodium benzoate, trade name, Proxel TM GXL (S), Proxel TM XL-2 (S), and the like.
  • any substance can be used as long as it can control the pH of the ink within a predetermined range without adversely affecting the prepared ink.
  • specific examples thereof include, for example, alkanolamines such as diethanolamine, triethanolamine and N-methyldiethanolamine; hydroxides of alkali metals such as lithium hydroxide, sodium hydroxide and potassium hydroxide; ammonium hydroxide (ammonia water) Alkaline metal carbonates such as lithium carbonate, sodium carbonate, sodium hydrogen carbonate and potassium carbonate; alkali metal salts of organic acids such as sodium silicate and potassium acetate; inorganic bases such as disodium phosphate;
  • the chelating reagent include, for example, disodium ethylenediaminetetraacetate, sodium nitrilotriacetate, sodium hydroxyethylethylenediaminetriacetate, sodium diethylenetriaminepentaacetate, sodium uracil diacetate and the like.
  • rust preventive examples include, for example, acidic sulfite, sodium thiosulfate, ammonium thioglycolate, diisopropylammonium nitrite, pentaerythritol tetranitrate, dicyclohexylammonium nitrite and the like.
  • water-soluble ultraviolet absorber examples include sulfonated benzophenone compounds, benzotriazole compounds, salicylic acid compounds, cinnamic acid compounds, and triazine compounds.
  • water-soluble polymer compound examples include polyethylene glycol, polyvinyl alcohol, cellulose derivatives, polyamine, polyimine, and the like.
  • the water-dispersible resin has a function of fixing the colorant in the ink composition to the recording material by forming a film at room temperature.
  • the resin used for the water dispersible resin is not particularly limited, and examples thereof include urethane resins, polyester resins, acrylic resins, vinyl acetate resins, vinyl chloride resins, acrylic styrene resins, acrylic silicone resins, and the like. Can be mentioned.
  • the water-dispersible resin is used, for example, in the state of a resin emulsion dispersed in water as a continuous phase. Some resin emulsions are commercially available.
  • organic and metal complex anti-fading agents can be used.
  • organic anti-fading agents include hydroquinones, alkoxyphenols, dialkoxyphenols, phenols, anilines, amines, indanes, chromans, alkoxyanilines, heterocycles, and the like.
  • the surfactant include known surfactants such as an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, a silicone surfactant, and a fluorine surfactant. Is mentioned.
  • Anionic surfactants include alkyl sulfocarboxylates, ⁇ -olefin sulfonates, polyoxyethylene alkyl ether acetates, polyoxyethylene alkyl ether sulfates, N-acyl amino acids or salts thereof, N-acyl methyl taurate salts , Alkyl sulfate polyoxyalkyl ether sulfate, alkyl sulfate polyoxyethylene alkyl ether phosphate, rosin acid soap, castor oil sulfate ester, lauryl alcohol sulfate ester, alkylphenol type phosphate ester, alkyl type phosphate ester, alkylaryl Examples of those that can be obtained as commercially available products include sulfonates, diethylsulfosuccinates, diethylhexylsulfosuccinates, dioctylsulfosuccinates, and the like. Nord TM LA-10
  • Examples of the cationic surfactant include 2-vinylpyridine derivatives and poly-4-vinylpyridine derivatives.
  • Nonionic surfactants include ethers such as polyoxyethylene nonylphenyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene dodecylphenyl ether, polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene alkyl ether; Ester systems such as polyoxyethylene oleate, polyoxyethylene distearate, sorbitan laurate, sorbitan monostearate, sorbitan monooleate, sorbitan sesquioleate, polyoxyethylene monooleate, polyoxyethylene stearate; 2,4,7,9-tetramethyl-5-decyne-4,7-diol, 3,6-dimethyl-4-octyne-3,6-diol, 3,5-dimethyl -1-hexyne-3-acetylene glycol (alcohol) -based ol; both manufactured by Nissin Chemical Industry Co., Ltd.
  • Amphoteric surfactants include lauryldimethylaminoacetic acid betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, coconut oil fatty acid amidopropyldimethylaminoacetic acid betaine, polyoctylpolyaminoethylglycine, imidazoline derivatives, etc. Is mentioned.
  • silicone surfactants include polyether-modified siloxane and polyether-modified polydimethylsiloxane.
  • Specific examples of commercially available products include BYK-347 (polyether-modified siloxane); BYK-345 and BYK-348 (polyether-modified polydimethylsiloxane), all manufactured by BYK Chemie. .
  • fluorosurfactant examples include a perfluoroalkyl sulfonic acid compound, a perfluoroalkyl carboxylic acid compound, a perfluoroalkyl phosphate ester compound, a perfluoroalkyl ethylene oxide adduct, and a perfluoroalkyl ether group as a side chain.
  • polyoxyalkylene ether polymer compounds Specific examples of commercially available products include, for example, Zonyl TBS, FSP, FSA, FSN-100, FSN, FSO-100, FSO, FS-300, Capstone FS-30, FS-31 (manufactured by DuPont); PF-151N, PF-154N (Omnova);
  • anionic, nonionic, silicone-based, and fluorine-based surfactants are preferred. These surfactants may be used alone or in combination of two or more.
  • the total content of the surfactant is usually 0.1% to 3%, preferably 0.3% to 1% with respect to the total mass of the ink composition. is there.
  • the content is 0.1% or more, the effect as a surfactant is good, and when the content is 3% or less, the dispersion stability of the pigment is good.
  • Examples of methods for preparing the ink composition include known methods such as stirring and mixing the above pigments using a sand mill (bead mill), roll mill, ball mill, paint shaker, ultrasonic disperser, microfluidizer, etc.
  • a water-based dispersion liquid prepared by using a water-soluble organic solvent, water and, if necessary, an ink preparation agent and the like may be added and mixed by a known method using stirring, a homogenizer, or the like.
  • the order in which the components of the ink composition are mixed is not particularly limited.
  • the ink composition When the ink composition is used for ink jet recording, it is preferable to remove solid impurities other than components necessary for the ink composition, for example, by filtration and separation.
  • a known method can be appropriately used as the filtration separation method.
  • filter paper such as glass filter paper GC-50 (retained particle diameter 0.5 ⁇ m, manufactured by Advantech), glass filter paper GA-100 (retained particle diameter 1.0 ⁇ m, manufactured by Advantech), and the like.
  • filter paper such as glass filter paper GC-50 (retained particle diameter 0.5 ⁇ m, manufactured by Advantech), glass filter paper GA-100 (retained particle diameter 1.0 ⁇ m, manufactured by Advantech), and the like.
  • These glass filter papers may be used alone.
  • two or more filter papers may be used in piles for the purpose of increasing the efficiency of filtration.
  • the ink composition can be used in various recordings. For example, it is suitable for writing instruments, aqueous printing, information recording, textile printing, etc., and particularly preferably used for ink jet recording.
  • ink jet recording method recording is performed by using the ink composition or each ink composition of the ink set as ink, and ejecting droplets of the ink in accordance with a recording signal to adhere to the recording material.
  • the ink nozzles used for recording are not particularly limited and can be appropriately selected according to the purpose.
  • the recording method may be any known method, for example, a charge control method for ejecting ink using electrostatic attraction; a drop-on-demand method (pressure pulse method) using vibration pressure of a piezo element ); Acoustic ink jet system that converts electrical signal into acoustic beam and irradiates ink using its radiation pressure; ejects ink using its radiation pressure; thermal ink jet that heats ink to form bubbles and uses generated pressure, ie bubble Jet (registered trademark) system;
  • a method called a photo ink in which a large number of inks having a low colorant concentration (colorant content) in the ink are ejected in a small volume; Examples include a method of improving image quality using a plurality of inks having different colorant concentrations; a method of improving the fixability of a colorant by using a colorless and transparent ink; and the like.
  • the colored body means a material colored by the ink composition or an ink set containing the ink composition, and preferably includes a recording material colored by an ink jet recording method using an ink jet printer.
  • the recording material is not particularly limited, and examples thereof include information transmission sheets such as paper and film, fibers and cloth (cellulose, nylon, wool, etc.), leather, and color filter base materials. Among these, an information transmission sheet is preferable.
  • Information transmission sheets can be broadly classified into those having an ink receiving layer and those having no ink receiving layer. As what has an ink receiving layer, the thing which used paper, a synthetic paper, a film, etc. as a base material and provided the ink receiving layer in these is mentioned, for example.
  • the ink receiving layer is formed by, for example, impregnating or coating the base material with a cationic polymer; inorganic fine particles capable of absorbing pigments in inks such as porous silica, alumina sol, and special ceramics, such as polyvinyl alcohol and polyvinyl pyrrolidone.
  • An information transmission sheet having an ink-receiving layer is usually called inkjet paper, inkjet film, glossy paper, or the like. Typical examples of commercially available products are manufactured by Canon Inc.
  • Product name Professional Photo Paper, Super Photo Paper, Glossy Gold and Matt Photo Paper; Seiko Epson Corporation Product Name: Photo Paper Crispia (High Gloss) Photographic paper (gloss), photo matte paper; manufactured by Nippon Hewlett-Packard Co., Ltd., trade name: advanced photo paper (gloss); manufactured by Fuji Film Co., Ltd., trade name: painting finish photo Pro;
  • Examples of the information transmission sheet that does not have an ink receiving layer include various types of paper such as gravure printing and offset printing, various types of paper such as art paper, and cast coated paper used for label printing. .
  • an information transmission sheet having no ink receiving layer is used as a recording material
  • the surface modification treatment it is preferable to perform at least one treatment selected from a corona discharge treatment, a plasma treatment, and a flame treatment.
  • a corona discharge treatment a plasma treatment
  • a flame treatment any known method may be used.
  • the effects of these treatments decrease with time. For this reason, when surface modification processing is performed on the information transmission sheet, it is preferable to continuously perform ink jet recording without taking time.
  • the corona discharge treatment there is a method of generating a corona discharge by applying a high voltage of several thousand volts between a grounded metal roll and a wire-like electrode placed at intervals of several mm. .
  • a high voltage of several thousand volts between a grounded metal roll and a wire-like electrode placed at intervals of several mm.
  • an information transmission sheet is placed in a container containing argon, neon, helium, nitrogen, nitrogen dioxide, oxygen, air, etc., and exposed to plasma generated by glow discharge, whereby oxygen, nitrogen is applied to the surface of the sheet. And a method of introducing a functional group containing, and the like.
  • an inert gas such as argon or neon is present at a low pressure, it is considered that radicals are generated on the surface of the sheet by the generated plasma. Then, it is considered that the radical is combined with oxygen by being exposed to air, and a carboxylic acid group, a carbonyl group, an amino group, or the like is introduced into the surface of the information transmission sheet.
  • the flame treatment is also referred to as flame treatment.
  • flame treatment there is a method of improving hydrophilicity by spraying a gas oxidation flame or the like sprayed from a burner or the like on the surface of the information transmission sheet to oxidize the surface of the sheet.
  • the surface modification treatment can be performed by appropriately adjusting the number of treatments; treatment time; applied voltage; etc. so as to obtain a desired effect.
  • a container containing at least the ink composition used as a yellow ink composition is loaded in a predetermined position of the ink jet printer, and the recording material is recorded by the above recording method. Record it. Further, when performing ink jet recording using the ink set, each container containing the ink composition of each color may be loaded in a predetermined position of the ink jet printer and recorded on the recording material by the above recording method. .
  • an ink-jet yellow ink that comprehensively improves various fastnesses such as light resistance, water resistance, and oil resistance, color developability, and storage stability.
  • the ink set, ink jet recording method, and colored body using the ink composition of the present invention as a yellow ink composition are excellent in fading balance with other color ink compositions other than the yellow ink composition, and are due to secular change. Image deterioration can be improved.
  • the pH of the dispersion 1 was 7.7
  • the average particle diameter of the colorant was 77 nm
  • the viscosity was 5.4 mPa ⁇ s.
  • Tables 1 and 2 below, the numerical values indicating the amounts of the components are all “parts”, and “-” indicates that the component is not included.
  • water used ion-exchanged water.
  • Olefin SK-14 is an antifoaming agent and is removed by filtration, so it is not contained in the ink compositions of the examples and comparative examples.
  • Preparation Example 3 C. used in Preparation Example 2 I. Instead of CI Pigment Yellow 213, C.I. I. A yellow dispersion was obtained in the same manner as in Preparation Example 2 except that CI Pigment Yellow 74 (HANSA Yellow 5GX01 manufactured by Clariant) was used. This dispersion is referred to as “Dispersion 2”. The content of the colorant in the total mass of the dispersion 2 was 19%. Further, the pH of the dispersion 2 was 7.4, the average particle diameter of the colorant was 48 nm, and the viscosity was 3.4 mPa ⁇ s.
  • IPG isopropyl glycol (ethylene glycol monoisopropyl ether)
  • LA-16 Haitenol
  • LA-16 1,2-HD 1,2-hexanediol
  • TEA Triethanolamine
  • GXL (S) Proxel
  • S) Proxel
  • PY213 C.I. I. Pigment Yellow 213
  • PY74 C.I. I. Pigment Yellow 74
  • Water Ion exchange water
  • the plain paper showed extremely good water resistance, while the cast coated paper and the gloss paper showed a great difference.
  • the water resistance improvement effect was observed synergistically. This synergistic effect was observed when the content ratio of the first and second colorants was approximately 80:20, clearly observed at 70:30 and prominently observed at 60:40.
  • each example containing both the first and second colorants has a synergistic effect in gloss paper, and each comparative example contains the first and second colorants independently. It showed extremely good light resistance equivalent to or better than.
  • Pigment Yellow 213 Inkjet Yellow H5G11 manufactured by Clariant
  • a sand grinder To the obtained liquid, 100 parts of ion-exchanged water was dropped, and the dispersing beads were separated by filtration. Then, 2-butanone and water were distilled off under reduced pressure using an evaporator to prepare a yellow dispersion liquid.
  • This dispersion is designated as “Dispersion 3”.
  • the content of the colorant in the total mass of the dispersion 3 was 12%.
  • the pH of dispersion 3 was 8.9, the average particle diameter of the colorant was 114 nm, and the viscosity was 8.0 mPa ⁇ s.
  • Preparation Example 5 C. used in Preparation Example 4 I. Instead of CI Pigment Yellow 213, C.I. I. A yellow dispersion liquid was obtained in the same manner as in Preparation Example 4 except that CI Pigment Yellow 74 (HANSA Yellow 5GX01 manufactured by Clariant) was used. This dispersion is referred to as “Dispersion 4”. The content of the colorant in the total mass of the dispersion 4 was 11%. Further, the pH of the dispersion 4 was 7.4, the average particle diameter of the colorant was 135 nm, and the viscosity was 2.1 mPa ⁇ s.
  • (I) Water resistance test A test piece was prepared in the same manner as in the above “(D) Water resistance test” except that the ink compositions of Examples 4 to 6 were used instead of the ink compositions of Examples 1 to 3. , And evaluated with the same evaluation criteria. As a result, all of the test pieces obtained from the ink compositions of Examples 4 to 6 were evaluated as “A” and exhibited extremely good water resistance.
  • test pieces obtained from the ink compositions of Examples 4 to 6 showed good results equivalent to those of Examples 1 to 3 in terms of color developability.
  • Pigment Yellow 120 Inkjet Yellow H2G manufactured by Clariant
  • a sand grinder 1500 rpm for 15 hours.
  • 100 parts of ion-exchanged water was dropped, and the dispersing beads were separated by filtration.
  • 2-butanone and water were distilled off under reduced pressure using an evaporator to prepare a yellow dispersion liquid.
  • This dispersion is referred to as “Dispersion 5”.
  • the content of the colorant in the total mass of the dispersion 5 was 12.3%.
  • the pH of dispersion 5 was 8.9, the average particle diameter of the colorant was 109 nm, and the viscosity was 9.5 mPa ⁇ s.
  • (N) Water resistance test A test piece was prepared in the same manner as in “(D) Water resistance test” except that the ink compositions of Examples 7 to 9 were used instead of the ink compositions of Examples 1 to 3. , And evaluated with the same evaluation criteria. As a result, all the test pieces obtained from the ink compositions of Examples 7 to 9 were evaluated as “A” and exhibited extremely good water resistance.
  • (P) Color developability evaluation The ink compositions of Examples 7 to 9 and Comparative Example 3 were used in the “(O) Light Resistance Test”, respectively, using a commercially available inkjet printer (PX-105 manufactured by Epson Corporation). A yellow colored product was obtained by solid printing on two types of plain paper and cast coated paper. The obtained colored product was used as a test piece, and the color developability (printing density) was evaluated with a colorimeter (SpectroEye manufactured by X-Rite) according to the following four evaluation criteria. The results are shown in Table 10. [Evaluation criteria] A: 1.0 or more B: 0.8 or more and less than 1.0 C: 0.7 or more and less than 0.8 D: Less than 0.7
  • test pieces obtained from the ink compositions of Examples 7 to 9 showed good results for color developability.
  • the ink composition of the present invention is extremely useful as an ink for ink jet recording because it is excellent in various fastness properties, in particular, water resistance, light resistance and color developability.

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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)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Ink Jet (AREA)

Abstract

L'invention porte sur une composition d'encre jaune ayant une excellente solidité à l'eau pour des images imprimées sur divers matériaux d'impression tout en conservant une performance supérieure ou égale à celle de compositions classiques en termes de solidité à la lumière et de caractère chromogène, sur un jeu d'encres utilisant cette composition d'encre comme composition d'encre jaune, sur un procédé d'impression par jet d'encre utilisant cette composition d'encre ou ce jeu d'encres et sur un article coloré obtenu par cette composition d'encre ou ce jeu d'encres. Cette composition d'encre pour impression par jet d'encre contient au moins deux types de premier colorant et de second colorant, un solvant organique hydrosoluble et de l'eau. Le premier colorant est le C.I. pigment jaune 213 ou 120 et le second colorant est un ou plusieurs pigments choisis dans le groupe constitué par le C.I. pigment jaune 74 et le C.I. pigment jaune 151.
PCT/JP2014/050222 2013-02-06 2014-01-09 Composition d'encre, jeu d'encres, procédé d'impression par jet d'encre et article coloré WO2014122945A1 (fr)

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WO2022224787A1 (fr) * 2021-04-19 2022-10-27 日本化薬株式会社 Encre pour jet d'encre, ensemble d'encre, ensemble de support d'encre, et support d'impression

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JP2003313480A (ja) * 2002-02-19 2003-11-06 Seiko Epson Corp インク組成物、インクセット及び記録方法
JP2006117931A (ja) * 2004-10-08 2006-05-11 Hewlett-Packard Development Co Lp 濃色及び淡色インクジェットインクに用いるための異質の顔料
JP2010235936A (ja) * 2009-03-11 2010-10-21 Fujifilm Corp イエロー顔料分散物、インクジェット記録用インク、インクジェット記録用カートリッジ、インクジェット記録方法、インクジェット記録装置及びインクジェット記録物
JP2013067780A (ja) * 2011-09-08 2013-04-18 Canon Inc 水性インク、インクカートリッジ、及びインクジェット記録方法

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JP2009173853A (ja) * 2007-12-28 2009-08-06 Seiko Epson Corp インクジェット記録用インクセットおよびインクジェット記録方法
JP5733884B2 (ja) * 2009-04-10 2015-06-10 キヤノン株式会社 インク、インクの調製方法、インクセット、インクカートリッジ、インクジェット記録方法、記録ユニット及びインクジェット記録装置

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JP2003313480A (ja) * 2002-02-19 2003-11-06 Seiko Epson Corp インク組成物、インクセット及び記録方法
JP2006117931A (ja) * 2004-10-08 2006-05-11 Hewlett-Packard Development Co Lp 濃色及び淡色インクジェットインクに用いるための異質の顔料
JP2010235936A (ja) * 2009-03-11 2010-10-21 Fujifilm Corp イエロー顔料分散物、インクジェット記録用インク、インクジェット記録用カートリッジ、インクジェット記録方法、インクジェット記録装置及びインクジェット記録物
JP2013067780A (ja) * 2011-09-08 2013-04-18 Canon Inc 水性インク、インクカートリッジ、及びインクジェット記録方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022224787A1 (fr) * 2021-04-19 2022-10-27 日本化薬株式会社 Encre pour jet d'encre, ensemble d'encre, ensemble de support d'encre, et support d'impression

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