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
• • 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
• • 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
• • 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
  • C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
• • 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
  • C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
• • 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
  • C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
  • C09D11/104—Polyesters
• • 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
  • C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
• • 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
  • C09D11/14—Printing inks based on carbohydrates
• • 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
  • C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
• • 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

• Patent Document 1 describes a non-aqueous ink composition containing a white pigment having a predetermined particle size and a glycol ether solvent. Patent Literature 1 describes that this non-aqueous ink composition is excellent in ejection stability and can provide recorded matter with excellent concealability.
• the non-aqueous ink composition on the substrate is increased by increasing the discharge amount of the non-aqueous ink composition. It takes a long time to dry due to the large amount of material.
• the surfactant contains a surfactant having a siloxane skeleton, the content of the surfactant having a siloxane skeleton is 0.01 mass% or more 1.0 % by mass or less, the non-aqueous ink composition according to any one of (1) to (4).
• a method for producing a recorded matter comprising ejecting the non-aqueous ink composition according to any one of (1) to (32) onto the surface of a substrate by an inkjet method.
• the non-aqueous ink composition of the present invention even if it contains a white pigment, can achieve both high recovery from cleaning and surface drying on a substrate.
• the content of the other organic solvent is not particularly limited, but the lower limit of the content of the other organic solvent is preferably in the range of 10% by mass or more, and more preferably in the range of 20% by mass or more. , 30% by mass or more.
• the upper limit of the content of other organic solvents is preferably 85% by mass or less, more preferably 80% by mass or less, and even more preferably 75% by mass or less.
• White pigments include, but are not limited to, C.I. I. Pigment White 6, 18, 21, metal compounds such as titanium oxide, zinc oxide, silica, calcium carbonate, magnesium carbonate, zinc sulfide, precipitated barium sulfate, antimony oxide, and zirconium oxide, and white inorganic pigments including clay and pearl pigments. is mentioned.
• a pigment dispersant may be used as necessary in the non-aqueous ink composition according to the present embodiment. Any pigment dispersant used in non-aqueous ink compositions can be used as the dispersant.
• a polymer dispersant may be used as the pigment dispersant.
• Such a dispersant has a polyester-based, polyacrylic-based, polyurethane-based, polyamine-based, polycaprolactone-based, or the like main chain, and has a polar group such as an amino group, a carboxyl group, a sulfone group, or a hydroxyl group as a side chain. is.
• the vinyl chloride resin may be either a homopolymer composed of a vinyl chloride monomer or a copolymer using two or more selected polymerizable monomers.
• copolymers of vinyl chloride resins include vinyl chloride-vinyl acetate copolymer resins.
• a vinyl chloride-vinyl acetate copolymer resin is a polymer of vinyl chloride monomer and vinyl acetate monomer.
• acrylic resins, vinyl chloride resins, cellulose resins, polyester resins, and polyurethane resins may be used alone, but it is preferable to use two of them in combination. It is more preferable to use a resin in which a resin and a vinyl chloride resin are mixed.
• the content ratio of the acrylic resin and the vinyl chloride resin can be controlled so as to meet the requirements for the non-aqueous ink composition, such as color development, drying property, coating properties, printability, and the like.
• the mixing ratio is not particularly limited and can be changed as appropriate.
• the resin contained in the non-aqueous ink composition is not particularly limited, but it is preferably contained in the range of 0.05% by mass or more, and contained in the range of 0.1% by mass or more, based on the total amount of the non-aqueous ink composition. is more preferable, and it is even more preferable to contain in the range of 0.5% by mass or more. This can further improve the surface drying property of the obtained recorded matter.
• the resin contained in the non-aqueous ink composition is preferably contained in a range of 20.0% by mass or less, more preferably 15.0% by mass or less, based on the total amount of the non-aqueous ink composition. It is more preferable to contain in the range of 10.0% by mass or less. This makes it possible to more effectively eliminate clogging in the nozzles of the inkjet head, further improve recovery from cleaning, and improve storage stability of the non-aqueous ink composition.
• the content ratio of the resin to the content of the white pigment (the content of the resin contained in the non-aqueous ink composition/the content of the white pigment contained in the non-aqueous ink composition).
• the lower limit of the content ratio of the resin to the content of the white pigment is preferably 0.20 or more, more preferably 0.23 or more, and further preferably 0.25 or more.
• the upper limit of the content ratio of the resin to the content of the white pigment is preferably 1.00 or less, more preferably 0.90 or less, and even more preferably 0.80 or less. Thereby, the ejection stability of the non-aqueous ink composition can be improved.
• surfactants include polyoxyalkylene alkyl ethers such as nonionic P-208, P-210, P-213, E-202S, E-205S, E-215, K-204, K-220, S -207, S-215, A-10R, A-13P, NC-203, NC-207 (manufactured by NOF Corporation), Emulgen 106, 108, 707, 709, A-90, A-60 (Kao ( Co., Ltd.), Floren G-70, D-90, TG-740W (manufactured by Kyoeisha Chemical Co., Ltd.), Poem J-0081HV (manufactured by Riken Vitamin Co., Ltd.), and as aliphatic phosphates, Adekatol NP -620, NP-650, NP-660, NP-675, NP-683, NP-686, Adekacol CS-141E, TS-230E (manufactured by Adeka Co., Ltd.
• the silicone surfactant having a siloxane skeleton it is preferable to use polyester-modified silicone or polyether-modified silicone, and specific examples include BYK-313, 315N, 322, 326, 331, 347, 348, BYK-UV3500, 3510, 3530, 3570 (all manufactured by BYK-Chemie Japan), etc.
• Specific examples of acetylene glycol-based surfactants include Surfynol (registered trademark) 82, 104, 465 , 485, TG (both manufactured by Air Products Japan), OLFIN (registered trademark) STG, E1010 (both manufactured by Nissin Kagaku Co., Ltd.), and the like.
• Surfactants are not limited to those described above, and any of anionic, cationic, amphoteric or nonionic surfactants can be used.
• Specific examples include BHA (2,3-butyl-4-oxyanisole) and BHT (2,6-di-t-butyl-p-cresol).
• a benzophenone-based compound or a benzotriazole-based compound can be used as the ultraviolet absorber.
• Specific examples of the epoxidized product include epoxy glyceride, epoxy fatty acid monoester, and epoxy hexahydrophthalate, and specific examples include ADEKA CIZER O-130P and ADEKA CIZER O-180A (manufactured by ADEKA). exemplified.
• Specific examples of polycarboxylic acids include citric acid and maleic acid.
• the viscosity at 25° C. is preferably 30 mPa ⁇ s or less, more preferably 20 mPa ⁇ s or less, from the viewpoint of inkjet dischargeability and discharge stability. More preferably, it is 15 mPa ⁇ s or less.
• the viscosity of the non-aqueous ink composition according to the present embodiment is preferably 2.0 mPa ⁇ s or more, more preferably 3.0 mPa ⁇ s or more, and 3.5 mPa ⁇ s or more. is more preferred.
• the surface tension of the non-aqueous ink composition according to the present embodiment is 20 mN/m or more at 25° C. from the viewpoints of ink-jet ejection property, ejection stability, and leveling property to the substrate. is preferably 22 mN/m or more, and even more preferably 24 mN/m or more. Also, the surface tension of the non-aqueous ink composition according to the present embodiment is preferably 40 mN/m or less, more preferably 37 mN/m or less, and even more preferably 35 mN/m or less.
• the non-aqueous ink composition according to the present embodiment is a non-aqueous ink composition that is ejected by an inkjet method, and contains a bright pigment and an organic solvent.
• Organic solvent A at least one selected from the group consisting of alkylamide solvents (a1) and cyclic amide solvents (a2)
• an organic solvent A at least one selected from the group consisting of an alkylamide solvent (a1) and a cyclic amide solvent (a2)
• a non-aqueous ink composition containing a bright pigment By including an organic solvent A (at least one selected from the group consisting of an alkylamide solvent (a1) and a cyclic amide solvent (a2)), a non-aqueous ink composition containing a bright pigment, Also, it is possible to effectively eliminate clogging in the nozzles of the inkjet head and improve the cleaning recoverability of the non-aqueous ink composition.
• the organic solvent A has low volatility within the plastic feeder (for example, plastic tube) despite its high drying property on the substrate surface. Therefore, the non-aqueous ink composition containing the organic solvent A can provide a recorded matter excellent in surface drying property while maintaining cleaning recoverability.
• the reason why organic solvent A has a high drying property on the substrate surface and low volatility in the plastic supply body is that organic solvent A has low permeability to the plastic. This is because the volatility at , is not necessarily correlated.
• non-aqueous ink composition containing an organic solvent A (at least one selected from the group consisting of an alkylamide solvent (a1) and a cyclic amide solvent (a2)) produces a bright layer.
• an organic solvent A at least one selected from the group consisting of an alkylamide solvent (a1) and a cyclic amide solvent (a2)
• the water content in the non-aqueous ink composition according to the present embodiment is preferably 5.0% by mass or less, more preferably 1.0% by mass or less, based on the total amount of the non-aqueous ink composition. It is preferably 0.5 mass or less, and more preferably 0.5 mass or less.
• moisture derived from raw materials or moisture from the air during the manufacturing process is mixed, the storage stability and ejection stability of the non-aqueous ink composition deteriorate, and solid matter is generated due to the components contained in the non-aqueous ink composition. I have something to do.
• Organic solvent is capable of dispersing or dissolving each component contained in the non-aqueous ink composition according to this embodiment.
• the organic solvent contains organic solvent A (at least one selected from the group consisting of alkylamide solvents (a1) and cyclic amide solvents (a2)).
• Preferred solvent types and preferred content ranges for the alkylamide solvent (a1) and the cyclic amide solvent (a2) are those of the alkylamide solvent (a1 ) and the cyclic amide solvent (a2).
• organic solvents A "those containing an alkylamide solvent (a1)” are more preferable. If it “includes the alkylamide solvent (a1)", it will achieve both cleaning recoverability and surface drying property on the base material, and furthermore, the member suitability of the inkjet recording apparatus will be good.
• the organic solvent A sufficiently exhibits the effects of the present invention by containing at least one of the alkylamide solvent (a1) and the cyclic amide solvent (a2). You may mix two or more types. By mixing two or more types, the balance of storage stability, suitability for members, surface drying property, and cleaning recovery property can be arbitrarily obtained. When two or more organic solvents A are mixed, the preferred range of the total content of the organic solvents A contained in the non-aqueous ink composition is the same as in the non-aqueous ink composition of the first embodiment described above.
• the non-aqueous ink composition according to the present embodiment may contain organic solvents other than the organic solvent A described above.
• organic solvents other than the organic solvent A described above.
• Specific examples include glycol ether dialkyl in which OH groups at both ends of glycol are alkyl-substituted, glycol ether monoalkyl in which one OH group of glycol is alkyl-substituted, carbonate esters, acetate solvents, cyclic esters, and the like.
• glycol ether solvent is the same as the glycol ether solvent in the non-aqueous ink composition of the first embodiment described above.
• acetate solvents examples include 3-methoxybutyl acetate, triethylene glycol butyl ether acetate, ethylene glycol butyl ether acetate, diethylene glycol ethyl ether acetate, diethylene glycol methyl ether acetate, diethylene glycol butyl ether acetate, propylene glycol methyl ether acetate, dipropylene glycol methyl
• Acetate-based solvents such as ether acetate, 1-methoxy-2-propyl acetate, 2-methylbutyl acetate, 3-methoxybutyl ether acetate, cyclohexyl acetate and the like are included.
• the non-aqueous ink composition of the first embodiment may contain solvents other than glycol ether-based solvents and acetate-based solvents.
• solvents other than the glycol ether solvent exemplified in the non-aqueous ink composition of the first embodiment can be mentioned.
• the preferred range of the total content of other organic solvents contained in the non-aqueous ink composition is the same as for the non-aqueous ink composition of the first embodiment described above.
• the non-aqueous ink composition according to this embodiment contains a bright pigment.
• the bright pigment has a function of imparting metallic luster to a subject.
• Luster pigments include, for example, pearl pigments and metal-containing luster pigments.
• the luster pigment preferably contains a metal-containing luster pigment. A more suitable metallic luster can be imparted to the subject.
• metal-containing bright pigments include at least one of single metals such as aluminum, silver, gold, nickel, chromium, tin, zinc, indium, titanium and copper; metal compounds; alloys and mixtures thereof.
• the metal-containing bright pigment it is preferable to use one containing at least one selected from the group consisting of aluminum, aluminum alloys, indium, indium alloys, nickel, and nickel alloys, and contains at least aluminum or aluminum alloys. It is particularly preferred to use By using at least one selected from the group consisting of aluminum, an aluminum alloy, indium, an indium alloy, nickel, and a nickel alloy as the metal-containing luster pigment, a more suitable metallic luster is imparted to the subject. can do.
• the lower limit of the content of the bright pigment is not particularly limited, but it is preferably 0.5% by mass or more, more preferably 0.8% by mass or more, based on the total amount of the non-aqueous ink composition. , more preferably 1.0% by mass or more, more preferably 1.2% by mass or more. This makes it possible to impart more suitable metallic luster to the subject. In particular, when the content of the luster pigment is high, it is possible to obtain recorded matter with excellent glossiness, but clogging tends to occur in the nozzles of the inkjet head, which tends to further reduce recovery from cleaning. .
• organic solvent A at least one selected from the group consisting of alkylamide solvent (a1) and cyclic amide solvent (a2)
• organic solvent A at least one selected from the group consisting of alkylamide solvent (a1) and cyclic amide solvent (a2)
• the upper limit of the content of the bright pigment is not particularly limited, it is preferably 10.0% by mass or less, more preferably 8.0% by mass or less, based on the total amount of the non-aqueous ink composition. , 6.0% by mass or less. This can improve the cleaning recoverability of the non-aqueous ink composition.
• a metal-containing thin film formed on a substrate As such a method, for example, a metal-containing thin film having a thickness of about 5.0 nm or more and 5.0 ⁇ m or less is formed on a flat substrate coated with a peeling resin layer by vacuum deposition, ion plating, sputtering, or the like. A method of peeling the metal-containing thin film from the base material and pulverizing the thin film can be mentioned.
• the term "metal-containing thin film” is used as a concept including a metal compound-containing thin film such as a metal oxide.
• the resin used for the release resin layer coated on the substrate include polyvinyl alcohol, polyvinyl butyral, polyethylene glycol, polyacrylic acid, polyacrylamide, cellulose derivatives, polyvinyl acetal, acrylic acid copolymer, and modified nylon resin. be.
• the resin solution is applied onto the sheet-like substrate by gravure coating, roll coating, blade coating, extrusion coating, dip coating, spin coating, or the like. A resin layer is formed.
• a non-aqueous ink composition or a dispersion used for producing a non-aqueous ink composition may be produced from the base material on which the metal-containing thin film is formed. It is preferable to immerse in a solvent that can dissolve the release resin and that does not react with the luster pigment, or to perform ultrasonic treatment at the same time as the immersion. Examples of such solvents include organic solvents that constitute non-aqueous ink compositions.
• the release resin functions as a dispersant for dispersing the bright pigment, thereby improving the dispersibility of the bright pigment. In this case, the particle diameter and film thickness of the luster pigment are adjusted by the conditions when the metal-containing thin film is formed and the ultrasonic dispersion time.
• the bright pigment may be sedimented and separated from the stripping resin-dissolved solution by centrifugation to recover the bright pigment, and the bright pigment may be dispersed in the organic solvent constituting the non-aqueous ink composition.
• the bright pigment may be surface-treated with a silane compound, a fluorine-containing compound, phosphoric acid, phosphate ester, fatty acid, fatty acid ester, or the like.
• the non-aqueous ink composition according to the present embodiment may contain coloring materials other than the bright pigment.
• the non-aqueous ink composition according to the present embodiment may contain no resin, but may contain a resin.
• the fixability, water resistance and stretchability of the recording layer formed from the non-aqueous ink composition can be improved. Furthermore, the glossiness of the obtained recorded matter can be improved.
• Preferred resin types are the same as the resins in the non-aqueous ink composition of the first embodiment described above.
• the preferred range of the content of the resin contained in the non-aqueous ink composition is the same as that of the non-aqueous ink composition of the first embodiment described above.
• wax is an organic substance or silicone compound that is solid at room temperature or below and liquefies when heated.
• low molecular weight polyolefin waxes such as polyethylene, polypropylene, polybutene, polyethylene mixed wax, polypropylene wax, polypropylene mixed wax, silicone (silicon) having a softening point, silicone (silicon)-acrylic waxes, Fatty acid amides such as oleic acid amide, erucic acid amide, ricinoleic acid amide, stearic acid amide, ester wax, carnauba wax, rice wax, candelilla wax, tree wax, jojoba oil and other vegetable waxes, beeswax, lanolin, Animal waxes such as whale wax, mineral waxes such as montan wax, ozokerite, ceresin, Fischer-Tropsch wax, petroleum waxes such as paraffin wax, microcrystalline wax, petrolatum, paraffin mixed wax, and modified products thereof are mentioned.
• ink compositions other than the non-aqueous ink composition containing the white pigment of the first embodiment include a black ink composition containing a black pigment, yellow, magenta, cyan, light magenta, light cyan, light black, and orange ink compositions. , green, red, etc., glitter ink compositions containing glitter pigments, and clear ink compositions containing no coloring material.
• the non-aqueous ink composition containing the white pigment of the first embodiment is used as the non-aqueous ink composition for forming the underlayer or overcoat layer, thereby improving the concealability of the recorded matter. be able to.
• a colored ink composition as an ink composition other than the non-aqueous ink composition containing the white pigment of the first embodiment, it is possible to form a desired image.
• the non-aqueous ink composition containing the bright pigment of the second embodiment as the non-aqueous ink composition for forming the underlayer or overcoat layer, the glossiness of the recorded matter is improved.
• a colored ink composition as an ink composition other than a non-aqueous ink composition containing a bright pigment, it is possible to form a desired image.
• At least one selected from the group consisting of a black ink composition, a colored ink composition, a white ink composition, and a clear ink composition At least one of them may be simultaneously ejected onto the surface of the substrate by an inkjet method.
• the recording method according to the present embodiment is a recording method in which the non-aqueous ink compositions of the first and second embodiments are ejected onto the surface of a substrate by an inkjet method.
• the non-aqueous ink compositions of the first and second embodiments described above are capable of achieving both high recovery from cleaning and surface drying properties on a substrate. It is also possible to obtain recorded matter having excellent surface drying properties.
• the inkjet recording apparatus preferably includes a heating mechanism and a fixing mechanism for fixing the substrate.
• the organic solvent contained in the non-aqueous ink composition is dried by controlling the substrate surface temperature with a heating mechanism provided in the inkjet recording apparatus and drying the non-aqueous ink composition that has landed on the substrate (recording medium). can be volatilized.
• the fixing mechanism for fixing the base material makes it possible to dry the non-aqueous ink composition while the base material (recording medium) is fixed. Uniformity can be suppressed. This makes it possible to effectively dry the non-aqueous ink composition that has landed on the substrate (recording medium).
• Such a drying mechanism and fixing mechanism are particularly effective when conveying the base material (recording medium) at high speed to improve the manufacturing speed of the recorded matter.
• the heating mechanism provided in the inkjet recording apparatus may be a pre-heater, a platen heater, an after-heater, or the like, or may be a mechanism for blowing warm air onto the recorded matter. Also, a plurality of these heating mechanisms may be combined.
• the white layer is a layer formed by volatilization of the solvent contained in the non-aqueous ink composition containing the white pigment of the first embodiment.
• the non-aqueous ink composition containing the white pigment of the first embodiment can effectively eliminate clogging in the nozzles of the inkjet head even when the white pigment is contained in a large amount, for example. It can improve the cleaning recoverability of the composition.
• the non-aqueous ink composition containing the white pigment of the first embodiment has high surface drying property on the substrate, and in order to provide a recorded matter excellent in hiding property, the non-aqueous ink composition Even if the discharge amount of the composition is increased, the drying time is not long.
• Bright pigment 6 Luminous pigment dispersion 6 containing luster pigment 6 obtained by changing the aluminum to nickel in the production of the luster pigment 1, changing the film thickness of the metal-containing thin film, refining treatment, and opening of the mesh filter. was prepared.
• the volume-based cumulative 50% particle diameter (D50) of this bright pigment 5 was 3.8 ⁇ m
• the volume-based cumulative 90% particle diameter (D90) was 5.0 ⁇ m
• the thickness was 5 nm.
• non-aqueous ink compositions of Examples 2-45 to 2-50 and 2-53 to 2-58 in which the type of organic solvent was changed, exhibited the effects of the present invention.

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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)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Molecular Biology (AREA)
• Health & Medical Sciences (AREA)
• Inks, Pencil-Leads, Or Crayons (AREA)
• Ink Jet Recording Methods And Recording Media Thereof (AREA)
• Ink Jet (AREA)
• Detergent Compositions (AREA)

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