WO2016010129A1 - インク組成物、インクジェット記録方法及び着色体 - Google Patents
インク組成物、インクジェット記録方法及び着色体 Download PDFInfo
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- WO2016010129A1 WO2016010129A1 PCT/JP2015/070461 JP2015070461W WO2016010129A1 WO 2016010129 A1 WO2016010129 A1 WO 2016010129A1 JP 2015070461 W JP2015070461 W JP 2015070461W WO 2016010129 A1 WO2016010129 A1 WO 2016010129A1
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- WIPO (PCT)
- Prior art keywords
- ink composition
- ink
- group
- alkyl group
- recording
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Classifications
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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
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
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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
Definitions
- the present invention relates to an ink composition, an ink jet recording method using the ink composition, and a colored body colored with the ink composition.
- a recording method using an ink jet printer which is one of the representative methods among various color recording methods, generates ink droplets and attaches them to a recording material such as paper to perform recording. Due to advances in ink jet technology, ink jet recording methods have come to be used in the field of high-definition printing that has been realized by silver salt photography and offset printing. Furthermore, in recent years, the demand for industrial applications has increased, and the performance for high-speed printing is also required.
- ink jet recording method using water-based ink in addition to a recording medium having an ink receiving layer such as an inkjet exclusive paper; an inkjet glossy paper; a recording medium having a low ink absorption capability, such as a general plain paper, having no ink receiving layer Is also used.
- the latter recording medium is difficult to permeate the ink, and therefore the printed material has poor scratch resistance.
- mottling may occur when a water-based pigment ink is used.
- the mottling phenomenon is, for example, that when an image with a large amount of ink such as a solid image is recorded, the amount of ink adhering exceeds the ink absorption capacity of the material to be recorded, so that it is not uniformly absorbed by the material to be recorded. This is a phenomenon in which unabsorbed ink droplets are unevenly distributed and fixed on a recording material to cause irregular image unevenness.
- Patent Documents 1 and 2 disclose that inks having good scratch resistance and high image quality can be obtained by controlling the permeability to paper with a surfactant and a penetrant. Is disclosed.
- Patent Document 3 discloses a paint containing a compound represented by the formula (1) described later as a film-forming aid.
- the present invention relates to an ink composition that is excellent in scratch resistance even when recorded on a recording material having a low ink absorption capability, and gives a high-quality recorded image without causing a mottling phenomenon, and an ink jet using the ink composition It is an object to provide a recording method and a colored body colored with the ink composition.
- the inventors of the present invention have at least a compound represented by the formula (1), a colorant, a dispersant, and a C4-C12 alkanediol.
- the present inventors have found that the above problems can be solved by the ink composition contained, and have completed the present invention.
- the present invention relates to the following 1) to 10).
- An ink composition comprising a compound represented by the following formula (1), a colorant, a dispersant, and a C4-C12 alkanediol, wherein the following formula (1) in the total mass of the ink composition:
- An ink composition having a content of 0.1 to 5% on a mass basis.
- R 1 represents a hydroxy group, an alkoxy group having a hydroxy group, an acyloxy group, or an arylcarbonyloxy group
- R 2 represents a hydrogen atom or an alkyl group
- R 3 represents a hydrogen atom or an alkyl group
- R 4 represents a hydrogen atom, a hydroxy group, or an alkyl group
- R 5 represents an alkyl group.
- R 1 is a hydroxy group
- R 2 is a branched alkyl group
- R 3 is a linear alkyl group
- R 4 is a hydrogen atom or a hydroxy group
- R 5 is branched.
- An ink jet recording method in which recording is performed by ejecting droplets of the ink composition according to any one of 1) to 6) according to a recording signal and attaching the droplets to a recording material.
- an ink composition that is excellent in scratch resistance even when recorded on a recording material having a low ink absorption capability and gives a high-quality recorded image without causing a mottle phenomenon, and an ink jet using the ink composition
- a recording method and a colored product colored with the ink composition could be provided.
- CI means “color index”.
- % and “parts” including examples and the like are described on a mass basis unless otherwise specified.
- examples of the alkoxy group having a hydroxy group in R 1 include hydroxy C1-C6 alkoxy, preferably hydroxy C1-C4 alkoxy, more preferably hydroxy C2-C4 alkoxy.
- examples of the alkoxy moiety include straight-chain, branched-chain or cyclic alkoxy, preferably straight-chain or branched-chain, more preferably straight-chain.
- Specific examples thereof include hydroxymethoxy, 2-hydroxyethoxy, 2-hydroxy-n-propoxy, 3-hydroxy-n-propoxy, 2-hydroxy-n-butoxy, 3-hydroxy-n-butoxy, 4-hydroxy- n-butoxy, 2-hydroxy-n-pentoxy, 3-hydroxy-n-pentoxy, 4-hydroxy-n-pentoxy, 5-hydroxy-n-pentoxy, 2-hydroxy-n-hexyloxy, 3-hydroxy-n- Straight chain such as hexyloxy, 4-hydroxy-n-hexyloxy, 5-hydroxy-n-hexyloxy, 6-hydroxy-n-hexyloxy; 2-hydroxyisopropoxy, 2-hydroxyisobutoxy, 3-hydroxyisobutoxy, 2-hydroxyisopentoxy, 3-hydroxyisope Branched chain such as toxi, 4-hydroxyisopentoxy, 2-hydroxyisohexyloxy, 3-hydroxyisohexyloxy, 4-hydroxyisohexyloxy, 5-hydroxyisohexyloxy; 2-hydroxycyclopropoxy, 2 -C
- acyloxy group in R 1 examples include linear, branched or cyclic normal C1-C6 acyloxy, preferably C1-C5 acyloxy, more preferably C2-C5 acyloxy groups. Of these, linear or branched ones are preferable, and linear ones are more preferable. In addition to the ester carbonyl of the acyloxy moiety, an acyloxy group having one more carbonyl group is preferred.
- straight-chain compounds such as methylcarbonyloxy, ethylcarbonyloxy, n-propylcarbonyloxy, n-butylcarbonyloxy, n-pentylcarbonyloxy; isopropylcarbonyloxy, isobutylcarbonyloxy, t-butylcarbonyl Branched chain such as oxy, isopentylcarbonyloxy, 1-ethylpropylcarbonyloxy, 1,1-dimethylpropylcarbonyloxy, 2,2-dimethylpropylcarbonyloxy; cyclic such as cyclobutylcarbonyloxy, cyclopentylcarbonyloxy 1-oxoethylcarbonyloxy, 2-oxopropylcarbonyloxy, 2-oxobutylcarbonyloxy, 3-oxobutylcarbonyloxy, 2-oxopentylcarbonyloxy Shi, 3- oxopentyloxy carbonyloxy, 4-oxo
- the arylcarbonyloxy group for R 1 usually includes C6-C12 arylcarbonyloxy. Specific examples include phenylcarbonyloxy, naphthylcarbonyloxy, biphenylcarbonyloxy and the like. Among these, phenylcarbonyloxy is preferable.
- R 1 is preferably a hydroxy group or an alkoxy group having a hydroxy group, more preferably a hydroxy group.
- alkyl group for R 2 to R 5 examples include C1-C6, preferably C1-C4 linear, branched or cyclic alkyl groups. Specific examples thereof include, for example, straight chain such as methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl; isopropyl, isobutyl, sec-butyl, t-butyl, isopentyl, t-pentyl. Branched chain such as isohexyl and t-hexyl; cyclic such as cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl; and the like.
- R 2 is preferably linear or branched, more preferably branched.
- a C3-C4 linear or branched alkyl group is preferable, n-propyl, isopropyl and t-butyl are more preferable, and isopropyl is particularly preferable.
- R 3 is preferably a straight chain, and methyl is particularly preferred among the above.
- R 4 is preferably a straight chain or branched chain, and among these, a C3-C4 straight chain or branched chain alkyl group is preferable, and n-propyl, isopropyl, and t-butyl are more preferable.
- R 5 is preferably linear or branched, and more preferably branched. Among these, C2-C4 linear or branched alkyl groups are preferable, ethyl, n-propyl, isopropyl and t-butyl are more preferable, and isopropyl is particularly preferable.
- R 1 is preferably a hydroxy group or an alkoxy group having a hydroxy group, more preferably a hydroxy group.
- R 2 is preferably an alkyl group, and more preferably a branched alkyl group.
- R 3 is preferably an alkyl group, and more preferably a linear alkyl group.
- R 4 is preferably a hydrogen atom or a hydroxy group.
- R 5 is preferably a branched alkyl group.
- a combination of preferable ones is more preferable, and a combination of more preferable ones is more preferable.
- the content of the compound represented by the formula (1) in the total mass of the ink composition is usually 0.1% to 5%, preferably 1% to 5%. If it is 0.1% or more, the effect of improving the mottling phenomenon is obtained, and if it is 5% or less, the storage stability of the ink composition is good.
- the ink composition may contain only one type of the compound represented by the formula (1), or two or more types may be used in combination.
- the colorant contained in the ink composition is not particularly limited, and pigments, disperse dyes, oil-soluble dyes, and the like can be used.
- a colorant that is insoluble or hardly soluble in water is preferable.
- the colorant insoluble or hardly soluble in water means a colorant having a solubility in water at 25 ° C. of usually 3 g / liter or less, preferably 2 g / liter or less, more preferably 1 g / liter or less.
- the ink composition is an ink composition in which a colorant is dispersed, that is, a dispersed ink composition.
- the pigment mainly includes inorganic pigments, organic pigments, extender pigments and the like, and any pigment can be used in the present invention. These pigments can also be combined. For example, extender pigments can be added to organic pigments.
- inorganic pigments include carbon black; metal oxides, metal hydroxides, metal sulfides, ferrocyanides, and metal chlorides.
- carbon black is preferable as the black inorganic pigment.
- the carbon black include thermal black, acetylene black, oil furnace black, gas furnace black, lamp black, gas black, and channel black.
- the above-mentioned carbon black is preferably furnace black, lamp black, acetylene black, channel black or the like.
- Specific examples of the carbon black for example, Raven760ULTRA, Raven780ULTRA, Raven790ULTRA, Raven1060ULTRA, Raven1080ULTRA, Raven1170, Raven1190ULTRA II, Raven1200, Raven1250, Raven1255, Raven1500, Raven2000, Raven2500ULTRA, Raven3500, Raven5000ULTRA II, Raven5250, Raven5750, Raven7000 (or, (Manufactured by Columbian Carbon); Monarch700, Monarch800, Monarch880, Monarch900, Monarch1000, Monarch1100, Mona ch1300, Monarch1400, Regal1330R, Regal1400R, Regal1660R, Moguul L (above, manufactured by Cabot Corporation); Color Black FW1, Color Black FW2, Color Black FW2V, Color Black FW200C, Black Black FW200C , Printex U, Printex V, Printex 140U, Printex
- 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, anthoraquinone pigments and quinophthalone. Pigments.
- organic pigments include C.I. I. Pigment Yellow 1, 2, 3, 12, 13, 14, 16, 17, 24, 55, 73, 74, 75, 83, 93, 94, 95, 97, 98, 108, 114, 128, 129, 138, 139, 150, 151, 154, 155, 180, 185, 193, 199, 202 etc. yellow pigments; 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, Red pigments such as 255, 257, 260, 264, 272; I.
- 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 inorganic pigments or organic pigments.
- the disperse dye for example, a known disperse dye such as azobenzene or anthraquinone can be used.
- Suitable disperse dyes include, for example, C.I. I. Dispers Yellow 9, 23, 33, 42, 49, 54, 58, 60, 64, 66, 71, 76, 79, 83, 86, 90, 93, 99, 114, 116, 119, 122, 126, 149, Yellow dyes such as 160, 163, 165, 180, 183, 186, 198, 200, 211, 224, 226, 227, 231, 237; I.
- Red dyes such as Dispers Red 60, 73, 88, 91, 92, 111, 127, 131, 143, 145, 146, 152, 153, 154, 167, 179, 191, 192, 206, 221, 258, 283:
- Orange dyes such as Dispers Orange 9, 25, 29, 30, 31, 32, 37, 38, 42, 44, 45, 53, 54, 55, 56, 61, 71, 73, 76, 80, 96, 97;
- Violet dyes such as Dispers Violet 25, 27, 28, 54, 57, 60, 73, 77, 79, 79: 1; I.
- a single pigment or dye can be used as the colorant.
- two or more kinds of colorants selected from pigments and dyes can be used in combination for the purpose of adjusting the hue of the recorded image.
- a surface-treated pigment also referred to as a self-dispersing pigment in which a dispersibility-imparting group is chemically introduced on the surface of the pigment particle can be used.
- the content of the colorant in the total mass of the ink composition is usually 1 to 30%, preferably 1 to 10%, more preferably 2 to 7%.
- dispersant examples include styrene and derivatives thereof; vinyl naphthalene and derivatives thereof; aliphatic alcohol esters of ⁇ , ⁇ -ethylenically unsaturated carboxylic acids and the like; acrylic acid and derivatives thereof; maleic acid and derivatives thereof; Its derivatives; fumaric acid and its derivatives; vinyl acetate, vinyl alcohol, vinyl pyrrolidone, acrylamide, and its derivatives; at least two monomers selected from the group consisting of monomers (preferably at least A copolymer composed of one hydrophilic monomer), for example, a block copolymer, a random copolymer and a graft copolymer, and / or a salt thereof.
- monomers preferably at least A copolymer composed of one hydrophilic monomer
- the dispersant can be synthesized or can be obtained as a commercial product.
- all manufactured by BASF Corporation are Jonkrill 61J, 67, 68, 450, 55, 555, 586, 678, 680, 682, 683, 690; and B-36; Can be mentioned.
- the dispersing agent described in International Publication No. 2013/115071 is also preferable.
- One type of dispersant can be used, or two or more types can be used in combination.
- the weight average molecular weight of the dispersant is about 10,000 to 60,000, preferably about 12500 to 40,000, more preferably about 12500 to 30000.
- the acid value is about 80 to 300, preferably about 90 to 275, more preferably about 90 to 250.
- Said dispersing agent can be used in the state mixed with the coloring agent. Further, the surface of the colorant can be coated with a dispersant and used as a so-called microencapsulated pigment.
- the ink composition may contain a colorant and a dispersant in a mixed state or a microencapsulated pigment, but the latter is preferred.
- the amount of the dispersant used with respect to the colorant is usually 0.1 part to 1 part, preferably 0.1 part to 0.6 part, more preferably 0.2 part to 0.4 part, with 1 part of the colorant. It is. If the amount of the dispersant used is too small or too large, problems such as a decrease in the stability of the ink composition; a deterioration in the recorded image may occur.
- the alkanediol contained in the ink composition is preferably a C4-C12 alkanediol, and more preferably a C4-C8 alkanediol.
- the alkane in the alkanediol may be either linear or branched, but is preferably linear.
- the substitution position of the diol is not particularly limited, but one of the two hydroxy groups is preferably located at the 1-position of the alkane, and 1,2-alkanediol is preferred.
- the content of the C4-C12 alkanediol in the total mass of the ink composition is usually 1 to 35%, preferably 1 to 20%.
- the content of the C4-C12 alkanediol is usually 2 to 200 times the amount of the compound represented by the formula (1) on a mass basis.
- the ink composition includes, for example, a water-soluble organic solvent, an antiseptic, an antifungal agent, a pH adjuster, a chelating reagent, an antirust agent, a water-soluble ultraviolet absorber, a water-soluble polymer compound, an antioxidant, and a surfactant.
- Ink preparation agents such as water-dispersible resins and wax agents can be contained as required. Each type of ink preparation agent can be used alone or in combination of two or more.
- water-soluble organic solvents examples include methanol, ethanol, propanol, isopropanol, butanol, isobutanol, sec-butanol or tert-butanol, C1-C6 alkanols such as trimethylolpropane; N, N-dimethylformamide or N, N A carboxylic acid amide such as dimethylacetamide; a lactam such as 2-pyrrolidone, N-methyl-2-pyrrolidone or N-methylpyrrolidin-2-one; 1,3-dimethylimidazolidin-2-one or 1,3-dimethyl Cyclic ureas such as hexahydropyrimido-2-one; ketones or ketoalcohols such as acetone, 2-methyl-2-hydroxypentan-4-one and ethylene carbonate; cyclic ethers such as tetrahydrofuran and dioxane; ethylene glycol , Diethylene Coal, triethylene glycol,
- monoalkylene glycol is preferable and propylene glycol is more preferable.
- isopropanol, 2-pyrrolidone, N-methyl-2-pyrrolidone, glycerin, ethylene glycol monoallyl ether, ethylene glycol monoisopropyl ether, diethylene glycol monomethyl ether, propylene glycol monopropyl ether and the like are preferable.
- preservatives include organic sulfur, organic nitrogen sulfur, organic halogen, haloaryl sulfone, iodopropargyl, haloalkylthio, nitrile, pyridine, 8-oxyquinoline, benzothiazole , Isothiazoline, dithiol, pyridine oxide, nitropropane, organotin, phenol, quaternary ammonium salt, triazine, thiazine, anilide, adamantane, dithiocarbamate, brominated indanone, benzyl Examples thereof include bromoacetate-based or inorganic salt-based compounds.
- Specific examples of commercially available antiseptics include trade names Proxel GXL (S) and Proxel XL-2 (S) manufactured by Arch Chemical Co., Ltd.
- antifungal agent examples include sodium dehydroacetate, sodium benzoate, sodium pyridinethione-1-oxide, ethyl p-hydroxybenzoate, 1,2-benzisothiazolin-3-one and salts thereof. .
- any substance can be used as long as it can control the pH within the above range without adversely affecting the prepared ink composition.
- 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) Or alkali 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; .
- chelating reagent examples include, for example, disodium ethylenediaminetetraacetate, sodium nitrilotriacetate, sodium hydroxyethylethylenediaminetriacetate, sodium diethylenetriaminepentaacetate or sodium uracil diacetate.
- rust inhibitor examples include acidic sulfite, sodium thiosulfate, ammonium thioglycolate, diisopropylammonium nitrite, pentaerythritol tetranitrate or dicyclohexylammonium nitrite.
- water-soluble ultraviolet absorbers 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 or polyimine.
- antioxidant for example, various organic and metal complex anti-fading agents can be used.
- organic anti-fading agent include hydroquinones, alkoxyphenols, dialkoxyphenols, phenols, anilines, amines, indanes, chromans, alkoxyanilines or heterocyclic rings. .
- surfactant examples include known surfactants such as anion, cation, nonion, amphoteric, silicone-based and fluorine-based.
- anionic surfactant examples 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 sulfone Acid salts, diethylsulfosuccinate, diethylhexylsulfosuccinate, dioctylsulfosuccinate and the like.
- cationic surfactants examples 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-di Acetylene glycol (alcohol) type such as til-1-hexyn-3-ol; trade name Surfinol 104, 105PG50, 82, 420
- amphoteric surfactants include lauryldimethylaminoacetic acid betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, coconut oil fatty acid amidopropyldimethylaminoacetic acid betaine, polyoctylpolyaminoethylglycine, and imidazoline derivatives. Can be mentioned.
- silicone surfactants include polyether-modified siloxane and polyether-modified polydimethylsiloxane.
- Dynol 960, Dinol 980 manufactured by Air Products
- examples include BYK-345, BYK-347, BYK-348, BYK-349, BYK-3455 (manufactured by BYK Chemie) and the like.
- 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 examples include Zonyl TBS, FSP, FSA, FSN-100, FSN, FSO-100, FSO, FS-300, Capstone FS-30, FS-31 manufactured by DuPont; PF-151N, PF manufactured by Omninova -154N; F-114, F-410, F-444, EXP.
- TF-2066 EXP. TF-2148, EXP. TF-2149, F-430, F-477, F-552, F-553, F-554, F-555, F-556, F-557, F-558, F-559, F-561, F- 562, R-40, R-41, RS-72-K, RS-75, RS-76-E, RS-76-NS, RS-77, EXP. TF-1540, EXP. TF-1760; BYK-3440 and BYK-3441 manufactured by BYK Chemie.
- surfactants preferred are nonionic surfactants, silicone surfactants, and fluorine surfactants.
- silicone and fluorine are preferable, and silicone is more preferable in consideration of economy.
- Specific examples thereof include Surfinol 104PG50, Surfinol 420, Surfinol 440, Surfinol 465, Dinol 980, BYK-345, BYK-348, BYK-349, Capstone FS-30, FS-31 and the like.
- the total content of the surfactant is usually 0.1 to 3%, preferably 0.3 to 1%, based on the total mass of the ink composition. If it is 0.1% or more, the effect as a surfactant is easily obtained, and if it is 3% or less, the dispersion stability of the pigment is good.
- the water dispersible resin those having a function of fixing the colorant in the ink composition to the recording material by forming a film at room temperature are preferable.
- 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 can be used, for example, in the state of a resin emulsion dispersed in water as a continuous phase.
- resin emulsions include, for example, Superflex 126, 150, 170, 210, 420, 470, 820, 830, 890 (urethane resin emulsion, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.); Hydran HW-350, HW-178, HW-163, HW-171, AP-20, AP-30, WLS-201, WLS-210 (urethane resin emulsion manufactured by DIC); 0569, 0850Z, 2108 (styrene-butadiene resin emulsion JSR) AE980, AE981A, AE982, AE986B, AE104 (acrylic resin emulsion manufactured by Etec);
- the wax agent is preferably one that has a function of fixing to a recording material, like the water-dispersible resin.
- a wax emulsion is preferable, and an aqueous wax emulsion is more preferable.
- natural waxes such as paraffin wax and microcrystalline wax, and chemically synthesized waxes such as polyethylene, polypropylene, and Fischer-Trop can be used.
- the particle size of the wax emulsion is preferably 5 ⁇ m or less and more preferably 1 ⁇ m or less in order to prevent clogging of the inkjet head.
- the product marketed as a wax emulsion for example, BYK Co.
- a colorant and a dispersant are stirred in water using a sand mill (also referred to as a bead mill), a roll mill, a ball mill, a paint shaker, an ultrasonic disperser, a microfluidizer, or the like.
- a sand mill also referred to as a bead mill
- a roll mill also referred to as a ball mill
- a paint shaker an ultrasonic disperser, a microfluidizer, or the like.
- each component is added by a known method such as stirring or using a homogenizer or the like, if necessary, with an ink preparation. And the like.
- the order of adding each component is not particularly limited.
- impurities can be removed by microfiltration using a membrane filter, glass filter paper or the like, if necessary.
- microfiltration is preferably performed.
- the pore diameter of the filter for performing microfiltration is usually 0.5 ⁇ m to 20 ⁇ m, preferably 0.5 ⁇ m to 10 ⁇ m.
- the thickness is preferably 0.5 ⁇ m to 20 ⁇ m, and when microfiltration of the ink composition is performed, 0.5 ⁇ m to 10 ⁇ m is preferable.
- 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) and sulfate (for example, sodium sulfate) contained in the ink composition is as follows: It is preferable to use a small amount. In general, inorganic impurities are often contained in colorants obtained as commercial products. The standard of the content of the inorganic impurities is approximately 1% by mass or less with respect to the total mass of the colorant, and the lower limit may be less than the detection limit of the analytical instrument, that is, 0%.
- a method for obtaining a colorant having a small amount of inorganic impurities for example, a method using a reverse osmosis membrane; a solid of the colorant is suspended and stirred in a mixed solvent of C1-C4 alcohol such as methanol and water, and the colored product is separated by filtration. And a desalting treatment such as a method of drying; or a method of exchanging and adsorbing inorganic impurities with an ion exchange resin.
- the ink composition can be used in various recording / printing fields.
- it is suitable for water-based ink for writing, water-based printing ink, information recording ink, textile printing and the like.
- it is preferably used for inkjet recording, and is preferably used in the inkjet recording method described later.
- the ink jet recording method of the present invention is a method for recording by ejecting droplets of the ink composition according to a recording signal and attaching them to a recording material.
- the ink nozzles used for recording are not particularly limited and can be appropriately selected according to the purpose.
- the ink jet recording method may be any known method. For example, a charge control method that ejects ink using electrostatic attraction force; a drop-on-demand method that uses vibration pressure of a piezo element (also called a pressure pulse method); And an acoustic ink jet method in which ink is ejected using the radiation pressure; a thermal ink jet in which ink is heated to form bubbles and the generated pressure is used, that is, a bubble jet (registered trademark) method;
- a method called a photo ink in which a large number of inks having a low colorant content in the ink are ejected in a small volume; the content of the colorant in the ink having substantially the same hue.
- a method for improving the image quality using a plurality of inks having different colors; and a method for improving the fixability of the colorant to the recording material by using a colorless and transparent ink together with an ink containing a colorant; etc. Is also included.
- the colored body means a substance colored with 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, but an information transmission sheet is preferable, and a non-hardly absorbable recording material is particularly preferable.
- Specific examples thereof include coated paper, and examples include finely coated paper, art paper, coated paper, matte paper, and cast paper.
- Coated paper is paper whose surface is coated with a paint to enhance aesthetics and smoothness.
- the paint include a mixture of various clays such as talc, pyrophyllite, and kaolin, titanium oxide, magnesium carbonate, calcium carbonate, and the like, and starch and / or polyvinyl alcohol.
- the finely coated paper refers to a recording paper having a coating amount of paint of 12 g / m 2 or less.
- Art paper refers to recording paper obtained by applying a coating of about 40 g / m 2 to high-grade recording paper (quality paper, paper with a chemical pulp usage rate of 100%).
- Coated paper and matte paper refer to recording paper coated with a paint of about 20 to 40 g / m 2 .
- the cast paper refers to a recording paper obtained by finishing art paper or coated paper by applying pressure to the surface with a machine called a cast drum so that the gloss and the recording effect are further enhanced. The effect obtained by the present invention is very suitably exhibited when such a non-hardly absorbable recording material is used.
- the recording material examples include plain paper that does not have an ink receiving layer, media used for gravure printing, offset printing, and the like; ink jet dedicated paper that has an ink receiving layer, ink jet dedicated film, glossy paper, or gloss film Fiber and cloth (cellulose, nylon, wool, etc.); leather; base material for color filter;
- plain papers and the like that do not have an ink receiving layer there are papers having low ink receptivity similar to the above-mentioned non-absorptive recording material. Even when such plain paper is used, the effects obtained by the present invention are exhibited very suitably.
- a container containing the ink composition is set at a predetermined position of the ink jet printer, and the recording material is recorded by the above recording method. Can be recorded.
- the ink composition of the present invention can be used in combination with the ink composition of each color such as green, blue (or violet), and red (or orange) as necessary.
- the ink composition of each color is injected into each container, and each container can be loaded into a predetermined position of the ink jet printer and used for ink jet recording in the same manner as the container containing the ink composition.
- the ink composition of the present invention it is not limited to inkjet dedicated paper or general-purpose plain paper, and even when a non-hardly absorbable recording material is used, it has excellent scratch resistance and does not cause a mottling phenomenon.
- a high-quality recorded image can be obtained.
- an ink dot on the medium has high roundness, smoothness, and an image that does not impair glossiness.
- a recorded image excellent in various fastness properties such as water resistance, light resistance, heat resistance, oxidation gas resistance (for example, ozone gas resistance) can be obtained.
- Example 1 Preparation of dispersion 1.
- a block copolymer described in Synthesis Example 3 of International Publication No. 2013/115071 was prepared, and 6 parts of the resulting polymer dispersant was dissolved in 30 parts of 2-butanone to obtain a uniform solution.
- a solution obtained by dissolving 0.44 g of sodium hydroxide in 41 parts of ion exchange water was added to this solution and stirred for 1 hour to prepare an emulsified solution in which the polymer dispersant was dissolved.
- Pigment Blue 15: 3 (Cyanine Blue A220J, manufactured by Dainichi Seika Kogyo Co., Ltd.) was added, and dispersion treatment was performed in a sand grinder for 15 hours at 1500 rpm. 100 parts of ion-exchanged water was added dropwise to the resulting liquid, and the beads for dispersion were removed by filtration. Then, 2-butanone and water were distilled off under reduced pressure using an evaporator, whereby a cyan dispersion having a pigment solid content of 11.9% was obtained. A liquid was obtained. The solid content in the aqueous solution was measured by dry weight method using MS-70 manufactured by A & D Corporation. The resulting colored dispersion is referred to as “Dispersion 1”.
- Example 2 Preparation of dispersion 2.
- Joncryl 68 (MW: 13000) 11.3 parts and 6 parts of triethanolamine were dissolved in 95.2 parts of ion-exchanged water and stirred for 1 hour.
- C.I. I. Pigment Blue 15: 3 (Cyanine Blue A220J, manufactured by Dainichi Seika Kogyo Co., Ltd.) was added in an amount of 37.5 parts, and dispersion treatment was performed with a sand grinder at 1500 rpm for 20 hours.
- Dispersion 2 After 150 parts of ion-exchanged water was added dropwise to the obtained dispersion, this liquid was filtered to remove the dispersion beads, thereby obtaining a dispersion having a solid content of 19.2%. The resulting dispersion is referred to as “Dispersion 2”.
- Examples 3 to 10 Preparation of ink. After adding each component described in Table 2 below and stirring and mixing, impurities were separated by a membrane filter having a pore size of 3 ⁇ m to obtain an ink composition for an evaluation test. Let the obtained ink composition be the ink composition of each Example. In Table 2, the numerical value of each component means “part”. “Remaining” means that the total amount of the ink composition was adjusted to 100 parts by adding pure water.
- PG Propylene glycol.
- 2-Py 2-pyrrolidone.
- BYK-349 Silicone surfactant, BYK-349.
- SF465 Nonionic surfactant, Surfynol 465.
- FS-31 fluorosurfactant, Capstone FS-31.
- 1,2-HD 1,2-hexanediol.
- 1,2-BD 1,2-butanediol.
- 1,2-OD 1,2-octanediol.
- EG ethylene glycol.
- Comparative Examples 1 to 6 Preparation of comparative ink. Comparative ink compositions of Comparative Examples 1 to 6 were prepared in the same manner as in Examples 3 to 10 except that the respective components listed in Table 2 were used.
- A The mottling phenomenon is suppressed and the image has no problem in practical use.
- B Fine color unevenness due to the Mottling phenomenon is confirmed on the image, which may cause a problem in practical use.
- C Mottling phenomenon occurs, and uneven and remarkable color unevenness is confirmed on the image, which is not suitable for practical use.
- the ink composition of each example is excellent in scratch resistance even when recorded on a recording material having a low ink absorption capability, and does not cause a mottling phenomenon and has a high image quality. It was confirmed that the ink composition provided
- Example 11 to 17 Preparation of ink. After adding each component described in Table 4 below and stirring and mixing, impurities were separated by a membrane filter having a pore size of 3 ⁇ m to obtain an ink composition for an evaluation test. Let the obtained ink composition be the ink composition of each Example.
- the numerical value of each component means “part”. “Remaining” means that the total amount of the ink composition was adjusted to 100 parts by adding pure water.
- the abbreviations in Table 4 below have the same meanings as the abbreviations in Table 2 above.
- the ink composition of each example is excellent in scratch resistance even when recorded on a recording material having a low ink absorption capability, and does not cause a mottling phenomenon and has a high image quality. It was confirmed that the ink composition provided
- the ink composition of the present invention is excellent in scratch resistance even when recorded on a recording material having a low ink absorption capability, and can provide a high-quality recorded image without causing a mottling phenomenon. In particular, it is extremely useful as an ink for inkjet recording.
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Abstract
Description
1)
下記式(1)で表される化合物と、着色剤と、分散剤と、C4-C12アルカンジオールとを含有するインク組成物であって、該インク組成物の総質量中における下記式(1)で表される化合物の含有量が、質量基準で0.1~5%であるインク組成物。
上記式(1)において、R1がヒドロキシ基又はヒドロキシ基を有するアルコキシ基
である、上記1)に記載のインク組成物。
3)
上記式(1)において、R1がヒドロキシ基である、上記1)に記載のインク組成物。
4)
上記式(1)において、R1がヒドロキシ基であり、R2がアルキル基であり、R3がアルキル基であり、R4が水素原子又はヒドロキシ基であり、R5がアルキル基である、上記1)に記載のインク組成物。
5)
上記式(1)において、R1がヒドロキシ基であり、R2が分岐鎖アルキル基であり、R3が直鎖アルキル基であり、R4が水素原子又はヒドロキシ基であり、R5が分岐鎖アルキル基である、上記1)に記載のインク組成物。
6)
上記アルカンジオールが、C4-C8のアルカンジオールである上記1)~5)のいずれか一項に記載のインク組成物。
7)
上記1)~6)のいずれか一項に記載のインク組成物の液滴を、記録信号に応じて吐出させて被記録材に付着させることにより記録を行うインクジェット記録方法。
8)
上記被記録材が情報伝達用シートである、上記7)に記載のインクジェット記録方法。
9)
上記1)~6)のいずれか一項に記載のインク組成物により着色された着色体。
10)
上記1)~6)のいずれか一項に記載のインク組成物を含有する容器が装填された、インクジェットプリンタ。
これらのうち、
R2としては直鎖又は分岐鎖のものが好ましく、分岐鎖のものがより好ましい。上記の中でもC3-C4の直鎖又は分岐鎖のアルキル基が好ましく、n-プロピル、イソプロピル、t-ブチルがより好ましく、イソプロピルが特に好ましい。
R3としては直鎖のものが好ましく、上記の中でもメチルが特に好ましい。
R4としては、直鎖又は分岐鎖のものが好ましく、上記の中でもC3-C4の直鎖又は分岐鎖のアルキル基が好ましく、n-プロピル、イソプロピル、t-ブチルがより好ましい。
R5としては、直鎖又は分岐鎖のものが好ましく、分岐鎖のものがより好ましい。上記の中でもC2-C4の直鎖又は分岐鎖のアルキル基が好ましく、エチル、n-プロピル、イソプロピル、t-ブチルがより好ましく、イソプロピルが特に好ましい。
R1としては、ヒドロキシ基又はヒドロキシ基を有するアルコキシ基が好ましく、ヒドロキシ基がより好ましい。
R2としては、アルキル基が好ましく、分岐鎖アルキル基がより好ましい。
R3としては、アルキル基が好ましく、直鎖アルキル基がより好ましい。
R4としては、水素原子又はヒドロキシ基が好ましい。
R5としては、分岐鎖アルキル基が好ましい。
Ph:フェニル。
i-Pr:イソプロピル。
n-Pr:ノルマルプロピル。
t-Bu:ターシャリーブチル。
Et:エチル。
また、上記インク組成物は、式(1)で表される化合物の1種類のみを含有することも、2種類以上を併用することもできる。
なお、上記インク組成物は、着色剤が分散した状態のインク組成物、すなわち、分散インク組成物である。
また、顔料粒子の表面に、化学的に分散性付与基を導入した、表面処理顔料(自己分散顔料ともいう。)を用いることもできる。
分散剤は、合成することも、市販品として入手することも可能である。市販品の具体例としては、いずれもBASF社製の、ジョンクリル61J、67、68、450、55、555、586、678、680、682、683、690;及び、B-36;等が好ましく挙げられる。
さらに、国際公開第2013/115071号に記載の分散剤も好ましく挙げられる。
分散剤は、1種類を使用することも、2種類以上を併用することもできる
上記インク組成物は、着色剤と分散剤を混合した状態で含有することも、マイクロカプセル化顔料とした状態で含有することもできるが、後者の方が好ましい。
上記インク組成物の総質量中における、C4-C12のアルカンジオールの含有量は通常1~35%、好ましくは1~20%である。また、C4-C12のアルカンジオールの含有量は、質量基準で、式(1)で表される化合物の量に対して通常2倍~200倍である。
これらの中では、モノアルキレングリコールが好ましく、プロピレングリコールがより好ましい。また、イソプロパノール、2-ピロリドン、N-メチル-2-ピロリドン、グリセリン、エチレングリコールモノアリルエーテル、エチレングリコールモノイソプロピルエーテル、ジエチレングリコールモノメチルエーテル、プロピレングリコールモノプロピルエーテル等が好ましい。
防腐剤の市販品の具体例としては、アーチケミカル社製、商品名プロクセルGXL(S)やプロクセルXL-2(S)等が挙げられる。
水分散性樹脂は、例えば、連続相としての水中に分散された樹脂エマルションの状態で使用することができる。
樹脂エマルションの市販品の具体例としては、例えば、スーパーフレックス126、150、170、210、420、470、820、830、890(ウレタン系樹脂エマルション 第一工業製薬社製);ハイドランHW-350、HW-178、HW-163、HW-171、AP-20、AP-30、WLS-201、WLS-210(ウレタン系樹脂エマルション DIC社製);0569、0850Z、2108(スチレン-ブタジエン系樹脂エマルション JSR社製);AE980、AE981A、AE982、AE986B、AE104(アクリル系樹脂エマルション イーテック社製);等が挙げられる。
ワックスエマルジョンとして市販されている製品としては、例えば、ビックケミー社製のCERAFLOUR925、CERAFLOUR929、CERAFLOUR950、CERAFLOUR991、AQUACER498、AQUACER507、AQUACER515、AQUACER526、AQUACER531、AQUACER537、AQUACER539、AQUACER552、AQUACER1547、AQUAMAT208、AQUAMAT263、AQUAMAT272、MINERPOL221等;三井化学社製の三井ハイワックスNL100、三井ハイワックスNL200、三井ハイワックスNL500、三井ハイワックス4202E、三井ハイワックス1105A、三井ハイワックス2203A、三井ハイワックスNP055、三井ハイワックスNP505等;三洋化成工業社製のKUE-100、KUE-11等が挙げられる。
なお、上記インクジェット記録方法には、フォトインクと称する、インク中の着色剤の含有量の低いインクを、小さい体積で多数射出する方式;実質的に同じ色相で、インク中の着色剤の含有量が異なる複数のインクを用いて画質を改良する方式;及び、無色透明のインクと、着色剤を含有するインクとを併用することにより、被記録材に対する着色剤の定着性を向上させる方式;等も含まれる。
塗工紙は、表面に塗料を塗布し、美感や平滑さを高めた紙である。塗料としては、タルク、パイロフィライト、カオリン等の各種のクレー、酸化チタン、炭酸マグネシウム、炭酸カルシウム等と、デンプン及び/又はポリビニルアルコール等とを混合したものが挙げられる。
微塗工紙とは、塗料の塗工量が12g/m2以下の記録用紙のことをいう。アート紙とは、上級記録用紙(上質紙、化学パルプ使用率100%の紙)に40g/m2前後の塗料を塗工した記録用紙のことをいう。コート紙、及びマット紙とは、20~40g/m2程度の塗料を塗工した記録用紙のことをいう。キャスト紙とは、アート紙やコート紙を、キャストドラムという機械で表面に圧力をかけることで、光沢や記録効果がより高くなるように仕上げた記録用紙のことをいう。
本発明により得られる効果は、このような非・難吸収性の被記録材を用いたときに、極めて好適に発揮される。
上記インクジェット記録方法は、本発明のインク組成物と、必要に応じて、グリーン、ブルー(又はバイオレット)及びレッド(又はオレンジ)等の各色のインク組成物とを併用することもできる。
各色のインク組成物は、それぞれの容器に注入され、その各容器を、上記インク組成物を含有する容器と同様にインクジェットプリンタの所定の位置に装填してインクジェット記録に使用することができる。
国際公開第2013/115071号の合成例3に記載のブロック共重合体を調製し、得られた高分子分散剤6部を、2-ブタノン30部に溶解させ、均一な溶液とした。この液に、0.44gの水酸化ナトリウムを41部のイオン交換水に溶解させた液を加え、1時間攪拌することで高分子分散剤が溶解した乳化溶液を調製した。これにC.I.Pigment Blue 15:3(大日精化工業社製シアニンブルー A220J)20部を加え、1500rpmの条件下で15時間、サンドグラインダー中で分散処理を行った。得られた液にイオン交換水100部を滴下し、ろ過して分散用ビーズを取り除いた後、エバポレータで2-ブタノン及び水を減圧留去することにより、顔料固形分11.9%のシアン分散液を得た。水溶液中の固形分測定には株式会社エイ・アンド・デイ社製、MS-70を用いて、乾燥重量法により求めた。得られた着色分散液を、「分散液1」とする。
ジョンクリル68(MW:13000)11.3部、及びトリエタノールアミン6部をイオン交換水95.2部に溶解し、1時間攪拌した。得られた溶液にC.I.Pigment Blue 15:3(大日精化工業社製 シアニンブルー A220J)37.5部を加え、1500rpmの条件下で20時間、サンドグラインダーで分散処理を行った。得られた分散液にイオン交換水150部を滴下した後、この液をろ過して分散用ビーズを取り除くことにより、固形分の含有量が19.2%の分散液を得た。得られた分散液を「分散液2」とする。
下記表2に記載の各成分を加えて攪拌混合した後、ポアサイズ3μmのメンブランフィルターで夾雑物を濾別し、評価試験用のインク組成物を得た。得られたインク組成物を、各実施例のインク組成物とする。
表2中、各成分の数値は「部」を意味する。残部とあるのは、純水を加えてインク組成物の総量を100部に調整したことを意味する。
PG:プロピレングリコール。
2-Py:2-ピロリドン。
BYK-349:シリコーン系界面活性剤、BYK-349。
SF465:ノニオン界面活性剤、サーフィノール465。
FS-31:フッ素系界面活性剤、Capstone FS-31。
1,2-HD:1,2-ヘキサンジオール。
1,2-BD:1,2-ブタンジオール。
1,2-OD:1,2-オクタンジオール。
EG:エチレングリコール。
上記表2に記載の各成分を用いる以外は実施例3~10と同様にして、比較例1~6の比較用の各インク組成物を調製した。
実施例、及び比較例の各インク組成物をそれぞれ使用し、セイコーエプソン社製インクジェットプリンタ、商品名PX205により、被記録材としてパールコートN(三菱製紙製:127.9g/m2)に対してインクジェット記録を行い、着色体を得た。被記録材への記録は、いずれも100%Duty画像として行った。
上記[(A)インクジェット方式による記録]にて得られた着色体を試験片とし、各試験片のモットリングの状態を目視にて観察した。評価は下記A~Cの3段階の基準で評価した。評価結果を下記表3に示す。
B:モットリング現象による微細な色ムラが画像上に確認され、実用上、問題となる懸念がある。
C:モットリング現象が発生し、不均一で顕著な色ムラが画像上に確認され、実用には不適である。
上記[(A)インクジェット記録]にて得られた着色体を90℃で2分間乾燥し、これを試験片とした。
各試験片の記録面と、記録を行う前のパールコートNの白紙面とを重ねあわせた。この2枚重ねの紙面に対して500gの荷重を20往復させた後、各試験片からパールコートNを剥がした。こうして得られた擦過前の試験片と擦過後の試験片の印字濃度を、X-rite社製濃度計、商品名Spectro Eyeにて測定した。観測光源はD50、観測視野は2°、濃度はANSI Aの条件で測定を行い、記録画像の反射濃度Dc値を測定した。耐擦過性の指標として、擦過後の着色剤の残存率(%)を下記式で計算し、結果を下記表3に示した。
残存率(%)=(擦過後の印字濃度)/(擦過前の印字濃度)x100。
下記表4に記載の各成分を加えて攪拌混合した後、ポアサイズ3μmのメンブランフィルターで夾雑物を濾別し、評価試験用のインク組成物を得た。得られたインク組成物を、各実施例のインク組成物とする。
表4中、各成分の数値は「部」を意味する。残部とあるのは、純水を加えてインク組成物の総量を100部に調整したことを意味する。
下記表4中の略号等は、前記表2中の略号等と同じ意味である。
Claims (10)
- 上記式(1)において、R1がヒドロキシ基又はヒドロキシ基を有するアルコキシ基
である、請求項1に記載のインク組成物。 - 上記式(1)において、R1がヒドロキシ基である、請求項1に記載のインク組成物。
- 上記式(1)において、R1がヒドロキシ基であり、R2がアルキル基であり、R3がアルキル基であり、R4が水素原子又はヒドロキシ基であり、R5がアルキル基である、請求項1に記載のインク組成物。
- 上記式(1)において、R1がヒドロキシ基であり、R2が分岐鎖アルキル基であり、R3が直鎖アルキル基であり、R4が水素原子又はヒドロキシ基であり、R5が分岐鎖アルキル基である、請求項1に記載のインク組成物。
- 上記アルカンジオールが、C4-C8のアルカンジオールである請求項1~5のいずれか一項に記載のインク組成物。
- 請求項1~6のいずれか一項に記載のインク組成物の液滴を、記録信号に応じて吐出させて被記録材に付着させることにより記録を行うインクジェット記録方法。
- 上記被記録材が情報伝達用シートである、請求項7に記載のインクジェット記録方法。
- 請求項1~6のいずれか一項に記載のインク組成物により着色された着色体。
- 請求項1~6のいずれか一項に記載のインク組成物を含有する容器が装填された、インクジェットプリンタ。
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CN201580036711.7A CN106661355B (zh) | 2014-07-18 | 2015-07-16 | 墨水组合物、喷墨记录方法及着色体 |
EP15822735.5A EP3153555B1 (en) | 2014-07-18 | 2015-07-16 | Ink composition, inkjet recording method, and colored article |
US15/323,026 US10544320B2 (en) | 2014-07-18 | 2015-07-16 | Ink composition, inkjet recording method, and colored article |
JP2016534497A JP6622700B2 (ja) | 2014-07-18 | 2015-07-16 | インク組成物、インクジェット記録方法及び着色体 |
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JP2017203098A (ja) * | 2016-05-11 | 2017-11-16 | 日本化薬株式会社 | インク及びインクジェット記録方法 |
JP2017222842A (ja) * | 2016-05-11 | 2017-12-21 | 日本化薬株式会社 | インク、インクジェット記録方法及びモットリングの改善方法 |
WO2017223441A1 (en) * | 2016-06-24 | 2017-12-28 | E. I. Du Pont De Nemours And Company | Aqueous inkjet inks containing a water-insoluble additive |
JP2019167494A (ja) * | 2018-03-26 | 2019-10-03 | 日本化薬株式会社 | インク及び繊維の捺染方法 |
JP2020125382A (ja) * | 2019-02-01 | 2020-08-20 | 日本化薬株式会社 | インク及びインクジェット記録方法 |
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JP2020063363A (ja) * | 2018-10-17 | 2020-04-23 | 三菱鉛筆株式会社 | 筆記具用水性インク組成物 |
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JP2017203098A (ja) * | 2016-05-11 | 2017-11-16 | 日本化薬株式会社 | インク及びインクジェット記録方法 |
JP2017222842A (ja) * | 2016-05-11 | 2017-12-21 | 日本化薬株式会社 | インク、インクジェット記録方法及びモットリングの改善方法 |
WO2017223441A1 (en) * | 2016-06-24 | 2017-12-28 | E. I. Du Pont De Nemours And Company | Aqueous inkjet inks containing a water-insoluble additive |
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JP2019167494A (ja) * | 2018-03-26 | 2019-10-03 | 日本化薬株式会社 | インク及び繊維の捺染方法 |
JP2020125382A (ja) * | 2019-02-01 | 2020-08-20 | 日本化薬株式会社 | インク及びインクジェット記録方法 |
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EP3153555A1 (en) | 2017-04-12 |
EP3153555B1 (en) | 2018-04-18 |
US20170137652A1 (en) | 2017-05-18 |
EP3153555A4 (en) | 2017-05-10 |
JP6622700B2 (ja) | 2019-12-18 |
US10544320B2 (en) | 2020-01-28 |
CN106661355A (zh) | 2017-05-10 |
CN106661355B (zh) | 2020-06-12 |
JPWO2016010129A1 (ja) | 2017-05-25 |
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