WO2013034096A1 - 喷墨打印直接制版的水基墨水及其制备方法 - Google Patents

喷墨打印直接制版的水基墨水及其制备方法 Download PDF

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WO2013034096A1
WO2013034096A1 PCT/CN2012/081103 CN2012081103W WO2013034096A1 WO 2013034096 A1 WO2013034096 A1 WO 2013034096A1 CN 2012081103 W CN2012081103 W CN 2012081103W WO 2013034096 A1 WO2013034096 A1 WO 2013034096A1
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water
dye
ether
based ink
printing
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PCT/CN2012/081103
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English (en)
French (fr)
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吴为
周海华
宋延林
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中国科学院化学研究所
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Priority to US14/343,613 priority Critical patent/US9127177B2/en
Publication of WO2013034096A1 publication Critical patent/WO2013034096A1/zh

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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D11/00Inks
    • C09D11/02Printing inks
    • C09D11/10Printing inks based on artificial resins
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D11/00Inks
    • C09D11/02Printing inks
    • C09D11/03Printing inks characterised by features other than the chemical nature of the binder
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D11/00Inks
    • C09D11/30Inkjet printing inks
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D11/00Inks
    • C09D11/30Inkjet printing inks
    • C09D11/32Inkjet printing inks characterised by colouring agents
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D11/00Inks
    • C09D11/30Inkjet printing inks
    • C09D11/32Inkjet printing inks characterised by colouring agents
    • C09D11/328Inkjet printing inks characterised by colouring agents characterised by dyes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D11/00Inks
    • C09D11/30Inkjet printing inks
    • C09D11/38Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes

Definitions

  • the invention belongs to a water-based ink for printing plate making, and particularly relates to a high-resolution water-based ink for inkjet printing direct plate making technology and a preparation method thereof.
  • Inkjet Computer To Plate is an inkjet printer that sprays plate-making ink onto the surface of a metal plate or polymer plate to form a lipophilic image.
  • the area where the ink is not sprayed is hydrophilic.
  • the graphic area using the contrast between the hydrophilic and oleophilic regions of the graphic and non-image areas to achieve printing plate making technology.
  • the inkjet printing direct plate-making technology avoids post-processing processes such as exposure and development, and the resulting printing plate has better resolution and printing durability after printing.
  • the ink for direct printing of inkjet printing is mainly a weak solvent ink, and the weak solvent ink is easy to block the printer nozzle when used, and the toxic and harmful gas generated during curing may cause environmental pollution.
  • Water-based inks have good print fluency, no toxic gases are emitted during curing, and good image resolution and high print durability can be achieved by adjusting the concentration and composition of water-based inks.
  • water-based inks for inkjet printing are mainly used for plain paper or paper with anti-diffusion coating, film, and various fiber substrates.
  • Ink-jet printing direct plate-making technology uses a metal substrate, which requires the diffusion of water-based ink on a metal substrate to be effectively controlled, while ensuring the contrast between hydrophilic and oleophilic regions of the image area and the non-image area. Image resolution and print durability when printing.
  • the inkjet printing direct plate-making technology introduced by VIM of Israel uses standard Epson aqueous ink, but the price of the ink is high.
  • One of the objects of the present invention is to prevent the low-solvent ink from easily clogging the printer head during direct printing by inkjet printing, and to provide a high-resolution water-based ink for inkjet printing direct plate making technology.
  • Another object of the present invention is to provide a method for preparing a high resolution water-based ink for inkjet printing direct plate making technology.
  • the inkjet printing direct-printing high-resolution water-based ink of the invention is composed of a polymer, an auxiliary agent, a dye or a pigment, an organic solvent, an antifoaming agent and a mixed solvent mainly composed of deionized water, and the ink is sprayed through the ink.
  • Ink printing plate making machine Sprayed on the surface of the metal substrate the metal substrate can be aluminum plate, zinc plate or copper plate) to form a graphic area, and after curing, a printing plate which can be directly printed on the machine is obtained.
  • the inkjet printing direct-printing high-resolution water-based ink of the present invention is based on the total amount of the water-based ink, and the composition and content of the water-based ink are:
  • Polymer 5 to 40% by weight (preferably 10 to 30% by weight)
  • Dye or pigment 0.01 ⁇ 10wt% (preferably 0.05 ⁇ 5wt%)
  • the polymer is selected from the group consisting of polyurethane resin, epoxy resin, water-soluble phenolic resin, polyvinyl alcohol, polyvinylpyrrolidone, polyethylene glycol, gelatin, gum arabic, polyacrylic resin, alkyd resin, polymethyl At least one of a group consisting of a copolymer of an acrylic resin, an acrylic acid and an acrylate monomer, a copolymer of a methacrylic acid and a methacrylate monomer, a polyvinyl acetal, and a water-soluble cellulose.
  • the polyurethane resin may be a commonly used resin obtained by condensing an isocyanate with a hydroxyl group-containing compound, and the isocyanate and the hydroxyl group-containing compound may be conventionally selected in the art.
  • the isocyanate may be selected from the group consisting of toluene diisocyanate, isophorone diisocyanate, p-phenylene diisocyanate, methylcyclohexyl diisocyanate, and cyclohexyl-1,4-diisocyanate
  • the hydroxyl group-containing compound may be selected from Polycarbonate diols, polyether triols, polyether diols (such as polyoxypropylene diols, polytetrahydrofuran diols, polypropylene glycols and polyethylene glycols), polyester diols and polyacrylate polyols.
  • the epoxy resin may be various commonly used epoxy resins, and is not particularly limited.
  • the epoxy resin may be a glycidyl ether epoxy resin, a glycidyl ester epoxy resin, a glycidylamine epoxy resin, a linear aliphatic epoxy resin or an alicyclic epoxy resin.
  • the relative proportion of the structural unit formed of acrylic acid and the structural unit formed of the acrylate monomer in the copolymer of acrylic acid and acrylate monomer in the present invention is not particularly limited, and generally, the acrylic acid and acrylate monomer In the copolymer, the weight ratio of the structural unit formed of acrylic acid to the structural unit formed of the acrylate monomer may be 1:1-15.
  • the copolymer of acrylic acid and the acrylate monomer may be a random copolymer or a block copolymer, and is not particularly limited.
  • the relative proportion of the structural unit formed of methacrylic acid and the structural unit formed of the methacrylic acid ester monomer in the copolymer of methacrylic acid and methacrylic acid ester type monomer in the present invention is not particularly limited, and generally, In the copolymer of methacrylic acid and methacrylic ester monomer, the weight ratio of the structural unit formed of methacrylic acid to the structural unit formed of the methacrylic acid ester monomer may be 1:1-15. In the present invention, the copolymer of methacrylic acid and a methacrylic ester monomer may be a random copolymer or a block copolymer, and is not particularly limited.
  • the acrylate monomer is selected from the group consisting of methyl acrylate, ethyl acrylate, propyl acrylate, n-butyl acrylate, lauryl acrylate, octadecyl acrylate and 2-ethylhexyl acrylate. At least one.
  • the methacrylate monomer is at least selected from the group consisting of methyl methacrylate, butyl methacrylate, 2-phenoxyethyl methacrylate, and methacrylate glycidyl ester.
  • methyl methacrylate butyl methacrylate, 2-phenoxyethyl methacrylate, and methacrylate glycidyl ester.
  • the auxiliaries are selected from auxiliaries which reduce surface tension, such as silicone leveling agents and/or organofluorine leveling agents.
  • the silicone leveling agent is selected from the group consisting of polydimethylsiloxane, polymethylphenylsiloxane, polyether modified silicone
  • a copolymer of a polyether and a silicone for example, a copolymer of a polyether and a silicone, a specific example thereof may include a polyether-modified polydimethylsiloxane), a group of a polyester-modified silicone (for example, a copolymer of a polyester and a silicone) At least one of them.
  • the organofluorine leveling agent is selected from the group consisting of a fluorine-containing acrylic resin (for example, an acrylic resin in which a hydrogen atom in a molecular structure is replaced by a fluorine atom, and an acrylic resin in which a hydrogen atom in a molecular structure is substituted by a fluorine-containing hydrocarbon group).
  • the fluorine-containing hydrocarbon group is preferably a fluorine-containing fluorenyl group, more preferably a fluorine-containing fluorenyl group of dC 5 , and still more preferably at least one selected from the group consisting of CF 3 -) and a fluorine-containing polyether leveling agent.
  • an antifoaming agent may be used at the same time, and the antifoaming agent may be, for example, at least one selected from the group consisting of natural fats, polyethers, and higher alcohols.
  • the higher alcohol refers to a fatty alcohol having 10 (e.g., 10 to 30) carbon atoms.
  • the polyether may be selected from the group consisting of polyether F-68, polyether 3050, polyether L-61, polyether L-68, polyether 204, polyether.
  • the dye is selected from one of a reactive dye, an acid dye or a basic dye.
  • the reactive dye is one of the black dye SP series or reactive black.
  • the acid dye is one of dye acid blue or dye acid yellow.
  • the basic dye is one of basic blue or Victoria blue in the blue dye.
  • the dye acid blue is one of Acid Blue 9, Acid Blue 25, Acid Blue 40, Acid Blue 62, Acid Blue 324, Acid Blue AS, Acid Blue AGG, Acid Blue 2BR and Acid Blue BR.
  • the dye acid yellow is one of dye acid yellow 3, dye acid yellow 23, dye acid yellow 49, dye acid yellow 127 and dye acid yellow 6G.
  • the particles of the pigment have a particle diameter of 5 to 1000 nm.
  • the ink added with the pigment needs to be ground on the ball mill to the grain The child is stably dispersed.
  • the pigment is one of Pigment Yellow, Pigment Orange, Pigment Red, Pigment Violet, Pigment Blue, Pigment Green, Pigment Brown, Pigment Black, Pigment White, and Metallic Pigment.
  • the organic solvent is selected from the group consisting of ethanol, propanol, isopropanol, n-butanol, tert-butanol, acetonitrile, tetrahydrofuran, 1,4-dioxane, dimethyl sulfoxide, hydrazine, hydrazine-dimethyl methacrylate Amide, ethylene glycol ether (for example, ethylene glycol monoethyl ether, ethylene glycol diethyl ether), propylene glycol methyl ether (for example, propylene glycol monomethyl ether, propylene glycol dimethyl ether), propylene glycol diethyl ether (for example, propylene glycol monoethyl ether, propylene glycol II) Ethyl ether), diethylene glycol methyl ether (eg, diethylene glycol monomethyl ether, diethylene glycol dimethyl ether), ethylene glycol mono-n-butyl ether, ethylene glyco
  • the deionized water has a conductivity of less than 10 microsiemens/cm.
  • the method for preparing a high-resolution water-based ink for inkjet printing direct-printing of the present invention wherein 5 to 40% by weight (preferably 10 to 30% by weight) of the polymer, based on the total amount of the water-based ink, is 0.01 ⁇ 10wt% (preferably 0.1 ⁇ 5wt) of auxiliary agent, 0.01 ⁇ 10wt% (preferably 0.05 ⁇ 5wt%) dye or pigment, l ⁇ 30wt% organic solvent, 0 ⁇ 5wt% (preferably 0.01-5wt%) Defoamer and the balance of deionized water at room temperature (for example, 15-35)
  • the mixture was stirred under agitation, and after the polymer was completely dissolved, the mixture was filtered, and the obtained filtrate was the water-based ink of the present invention.
  • the filtration can be multi-stage filtration.
  • the multi-stage filtration may use a filter membrane to filter the mixed solution multiple times, or sequentially filter the mixed solution with a sand core funnel and a filter membrane, preferably sequentially filtering the mixed solution with a sand core funnel and a filter membrane, specifically
  • the filter is first filtered with a sand core funnel and filtered through a microporous membrane.
  • the obtained filtrate is the water-based ink of the present invention.
  • the filtration is carried out by using a sand core funnel.
  • the preferred filtration scheme is to first filter the glass sand core funnel (G1 type glass sand core funnel) with a pore diameter of 20 to 30 micrometers, and then use the glass sand with a pore diameter of 3 to 4 micrometers.
  • the core funnel (G4 glass core funnel) was filtered.
  • the filtration method using the microporous membrane is preferred.
  • the preferred method is to filter the polytetrafluoroethylene microporous membrane with a pore diameter of 0.3 to 0.5 ⁇ m, and then use a polytetrafluoroethylene microparticle having a pore diameter of 0.15 to 0.25 ⁇ m. The pore filter was filtered.
  • the high-resolution water-based ink for inkjet printing directly plated according to the present invention can be controlled by a computer-controlled inkjet printer (For example, CTP7600 plate making system (see CN1800982A)) Water-based ink is sprayed on the surface of the metal substrate to form a graphic area, and then the plate is cured to obtain a printing plate that can be directly printed on the machine.
  • the resolution of the obtained printing plate is obtained.
  • it is capable of achieving a dot reproduction ratio of 2 to 99% and a resolution of 175 lpi.
  • the high-efficiency water-based ink for inkjet printing of the present invention is low in cost, thereby making it easier to promote the inkjet printing direct plate making technology. detailed description
  • Polyurethane resin (commercially available from Yantai Wanhua Polyurethane Co., Ltd., brand name WANNATE PM-2025), which is a total of 5 wt% of high-resolution water-based inks, 0.01 wt% of polyether modified polydimethylsiloxane ⁇ (purchased from BYK, Germany, under the designation BYK-331), 0.01 wt% alkaline brilliant blue, 1 wt% isopropanol, 5 wt% natural oil and the balance of deionized water; stirring at room temperature After 2 hours, the filtrate obtained by filtering the mixed solution was a water-based ink.
  • Example 2 Example 2
  • Polyurethane resin (commercially available from Yantai Wanhua Polyurethane Co., Ltd., brand name WANNATE PM-2025), 10 wt% polydimethylsiloxane (purchased from high-resolution water-based inks) Guangzhou Sloco Chemical Co., Ltd., brand name Silok® 201-100), 30 wt% propylene glycol, 10 wt% black dye SP and the balance of deionized water; stir at room temperature for 6 hours, mix with filter The solution is filtered, and the filtrate obtained by filtering the mixed solution is a water-based ink.
  • Example 3 Example 3
  • Epoxy resin purchased from Jiangsu Sanmu Group, grade E-51
  • 1 wt% polymethylphenylsiloxane purchasedd from Alfa Aesar
  • 10 wt% acetonitrile 0.03 ⁇ acid blue
  • 0.03 ⁇ acid blue 0.03 ⁇ acid blue
  • 0.03 wt% polyether F-68 the balance of deionized water
  • Water-soluble phenolic resin (purchased from Shandong Shengquan Chemical Co., Ltd., grade PF-7210), 0.1 wt% polyether modified silicone (purchased from Fujian) Shishi Lvyu Chemical Trading Co., Ltd., grade AE 61 CN), 0.06 wt% active black, 15 wt% tetrahydrofuran, 0.5 wt3 ⁇ 4 ⁇ higher alcohol (purchased from Liaoyang Huaxing Chemical Co., Ltd.) and the balance of deionized water; stirred at room temperature for 4 hours, the filtrate obtained after filtration of the mixed solution is water-based ink.
  • Example 5 Water-soluble phenolic resin (purchased from Shandong Shengquan Chemical Co., Ltd., grade PF-7210), 0.1 wt% polyether modified silicone (purchased from Fujian) Shishi Lvyu Chemical Trading Co., Ltd., grade AE 61 CN), 0.06 wt% active black, 15 wt% tetrahydr
  • a gum (acquired from Sinopharm Chemical Reagent Beijing Co., Ltd.), a total of 30% by weight of high-resolution water-based inks, l wt% of fluoropolyether (purchased from BYK, Germany, under the designation BYK-340) 10% of the dye acid blue 9, 6 W t% of diethylene glycol monomethyl ether and the balance of deionized water were mixed; the mixture was stirred at room temperature for 4 hours, and the filtrate obtained by filtering the mixed solution was a water-based ink.
  • BYK-340 fluoropolyether
  • Polyacrylic resin (purchased from Zibo Fengyuan Chemical Co., Ltd., brand ZB-25), which is 20% of the total amount of high-resolution water-based ink, 0.1 wt% of fluorine-containing acrylic resin (purchased from Shanghai Fengbiao Chemical Technology) Co., Ltd., grade FB8700), 0.6 ⁇ pigment brown (particle size 500 nm), % ethanol, 0.1 wt% polyether F-38 (commercially available from Hai'an Petrochemical Plant, Jiangsuzhou) and the balance of deionized water; stirred at room temperature for 5 hours, the filtrate obtained after filtration of the mixed solution is water-based ink.
  • fluorine-containing acrylic resin purchased from Shanghai Fengbiao Chemical Technology Co., Ltd., grade FB8700
  • 0.6 ⁇ pigment brown particle size 500 nm
  • % ethanol % ethanol
  • polyether F-38 commercially available from Hai'an Petrochemical Plant, Jiangsuzhou
  • Polymethacrylic resin (purchased from Jinan Yuanxiang Chemical Co., Ltd., grade BC-201-805), which is 30% by weight of high-resolution water-based ink, 1 wt% polymethylphenylsiloxane (purchased from Alfa Aesar (Tianjin) Chemical Co., Ltd., model: MW 2500-2700), 0.2 ⁇ of pigment black (particle size 100 nm), 8 ⁇ of dipropylene glycol dimethyl ether, 0.02% by weight of high-carbon alcohol (purchased from Liaoyang Huaxing Chemical Co., Ltd.) and the balance of deionized water were mixed; stirred at room temperature for 5 hours, and the filtrate obtained after filtering the mixed solution was water-based ink.
  • Total amount of water-based inks will account for the high-resolution 25 W t% of a random copolymer of acrylic acid with methyl acrylate (structural unit derived from acrylic acid and the total amount of methyl acrylate is formed by a structural unit as a reference, acrylic
  • the content of the structural unit formed was 6.25 wt), 3 wt% of polydimethylsiloxane (purchased from Guangzhou Sloco Chemical Co., Ltd., The brand name is Silok® 201-100), 0.3 wt% alkaline brilliant blue, 20 wt% diethylene glycol dimethyl ether, 0.03 wt% polyether P-65 (purchased from Jiangsu Hai'an Petrochemical Plant) and The remaining amount of deionized water was mixed; the mixture was stirred at room temperature for 5 hours, and the filtrate obtained by filtering the mixed solution was a water-based ink.
  • a random copolymer of methacrylic acid and methyl methacrylate (based on the total amount of structural units formed of acrylic acid and structural units formed of methyl acrylate), which accounts for 15 wt% of the total of high-resolution water-based inks.
  • the content of structural units formed from acrylic acid is 50 wt%), 5 wt% of polyether modified silicone (purchased from Shishi City, Yuhua City, Yuyu Chemical Co., Ltd., grade AE 61 CN), 0.5 wt% of pigment Blue (particle size lOOOnm), 5 wt% diethylene glycol monomethyl ether, 0.06 wt% polyether 204 (purchased from Hai'an Petrochemical Plant, Jiangsuzhou) and the balance of deionized water; stirring at room temperature for 5 hours
  • the filtrate obtained by filtering the mixed solution is a water-based ink.
  • Polyvinyl butyral (10 wt% of high-resolution water-based ink) (purchased from Sinopharm Chemical Reagent Beijing Co., Ltd., using the method specified in GB/T 1723-93, using a coating-4 viscometer Viscosity measured at 25 ° C is 100-120 sec), 0.2 wt% polyester modified silicone (purchased from Hubei Xinsihai Chemical Co., Ltd., grade SH-022), 0.4% by weight of pigment yellow (particle size) It is 5 nm), 15 wt% of propylene glycol monobutyl ether, and the balance of deionized water; it is stirred at room temperature for 5 hours, and the filtrate obtained by filtering the mixed solution is a water-based ink.
  • Water-soluble cellulose (purchased from Zhangzhou Tongyi Technology Chemical Co., Ltd., grade EK-70), 0.02 wt% polyether modified polydimethylsiloxane, which accounts for 5 W t% of high-resolution water-based ink Oxygen (purchased from BYK, Germany, under the designation BYK-331), 0.5 wt% alkaline blue, 20 wt% n-butanol and the balance of deionized water; stirred at room temperature for 5 hours, mixed solution The filtrate obtained after filtration is a water-based ink.
  • Example 17 Water-soluble cellulose (purchased from Zhangzhou Tongyi Technology Chemical Co., Ltd., grade EK-70), 0.02 wt% polyether modified polydimethylsiloxane, which accounts for 5 W t% of high-resolution water-based ink Oxygen (purchased from BYK, Germany, under the designation BYK-331), 0.5 wt% alkaline blue, 20 w
  • Epoxy resin purchased from Jiangsu Sanmu Group, brand E-51 and 25 wt% polyurethane resin (commercially available from Yantai Wanhua Polyurethane Co., Ltd.) For WNNATE PM-2025), 0.05 wt% fluorinated acrylic resin (purchased from Shanghai Fengbiao Chemical Technology Co., Ltd., grade FB8700), 10 ⁇ Acid Blue 324, 2 wt% propylene glycol monomethyl ether, 0.01 wt
  • the natural oil and the remaining amount of deionized water are mixed; the mixture is stirred at room temperature for 4 hours, and the filtrate obtained by filtering the mixed solution is a water-based ink.
  • Water-soluble phenolic resin purchased from Shandong Shengquan Chemical Co., Ltd., grade PF-7210
  • polyvinylpyrrolidone purchased from Sinopharm Group
  • Epoxy resin purchased from Jiangsu Sanmu Group, brand E-51
  • 5 wt% polyethylene glycol purchased from Sinopharm Chemical Reagent Beijing Co., Ltd.
  • the grade is PEG-400), 10 wt of polyether modified silicone (purchased from Fujian Shishi Lvyu Chemical Trading Co., Ltd., grade AE 61 CN), 1 wt of dye acid yellow 23 SF, l wt% of three Ethylene glycol, 2 wt% polyether L-64 (purchased from Hai'an Petrochemical Plant, Jiangsu Republic) and the balance of deionized water; stirred at room temperature for 4 hours, the filtrate obtained after filtration of the mixed solution is water-based ink .
  • Polyurethane resin (purchased from Yantai Wanhua Polyurethane Co., Ltd., brand name WANNATE PM-2025) and 10 wt% water-soluble cellulose, which are based on the total amount of high-resolution water-based inks (purchased from Zhangzhou Tongyi Technology) Chemical Co., Ltd., grade EK-70), 1 wt% polymethylphenylsiloxane (purchased from Alfa Aesar (Tianjin) Chemical Co., Ltd., model: MW 2500-2700), 5 wt% acid Blue AGG, 8 ⁇ 1% ethanol, 0.05 wt% polyether F-38 (purchased from Hai'an Petrochemical Plant, Jiangsuzhou) and the balance of deionized water; stirred at room temperature for 2 hours, the mixed solution was filtered The filtrate is a water based ink.
  • Example 22 Polyurethane resin (purchased from Yantai Wanhua Polyurethane Co., Ltd.,
  • Water-soluble phenolic resin (purchased from Shandong Shengquan Chemical Co., Ltd., grade PF-7210) and 20 wt% polyurethane resin (purchased from Anping Sanlian Filter Equipment), which accounts for 5 wt% of high-resolution water-based inks.
  • Water-soluble phenolic resin (purchased from Shandong Shengquan Chemical Co., Ltd., grade PF-7210) and 20 wt% polyurethane resin (purchased from Anping Sanlian Filter Equipment), which accounts for 15 wt% of high-resolution water-based inks. Co., Ltd., grade 100), 5 wt% fluorinated acrylic resin (purchased from Shanghai Fengbiao Chemical Technology Co., Ltd., grade FB8700), 0.8 wt% acid blue BR, 10 wt% isopropanol and balance The mixture was mixed with deionized water; the mixture was stirred at room temperature for 4 hours, and the filtrate obtained by filtering the mixed solution was a water-based ink.
  • the filtration in the above embodiments 10 to 20 uses multi-stage filtration, which is firstly filtered using a glass sand core funnel (G1 type glass core funnel) having a pore diameter of 20 to 30 ⁇ m, and then a glass having a pore diameter of 3 to 4 ⁇ m is used.
  • the core funnel (G4 glass core funnel) was filtered. Then, it was filtered through a polytetrafluoroethylene microporous membrane having a pore diameter of 0.3 to 0.5 ⁇ m, and then filtered using a polytetrafluoroethylene microporous membrane having a pore diameter of 0.15 to 0.25 ⁇ m.
  • the filtration in Examples 1-9 and 21-23 was carried out by using a glass core funnel (G4 type glass core funnel) having a pore diameter of 3 to 4 ⁇ m.
  • the deionized water in the above Examples 1 to 23 had an electric conductivity of less than 10 ⁇ Siemens/cm.
  • the ink-jet printing direct-printing water-based ink prepared by the above-mentioned preparation is sprayed on a metal plate base (aluminum plate base, zinc plate base or copper plate base) for printing plate making by using a printing plate-making machine to form a graphic area, which is obtained after curing.
  • the plate can be directly printed on the machine, and the resulting plate has a better resolution, and can achieve a dot reproduction rate of 2 to 99% and a resolution of 175 lpi.

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

Abstract

一种可用于喷墨打印直接制版技术的水基墨水及其制备方法。以所述的水基墨水的总量为基准,将5-40wt%的聚合物、0.01-10wt%的助剂、0.01-10wt%的染料或颜料、1-30wt%的有机溶剂、0-5wt%的消泡剂及余量的去离子水在室温下搅拌混合,待聚合物完全溶解后,将混合溶液进行过滤,所得到的滤液即为水基墨水。水基墨水通过喷墨打印制版机喷涂在金属基材表面(金属基材可以为铝版、锌版或铜版),形成图文区域,固化后得到可以直接上机印刷的印版,所得的印版能够达到2-99%的网点再现率和175lpi的分辨率。

Description

喷墨打印直接制版的水基墨水及其制备方法
技术领域
本发明属于印刷制版用水基墨水,具体涉及用于喷墨打印直接制版技术的高分辨率 水基墨水及其制备方法。
背景技术
喷墨打印直接制版技术(Inkjet Computer To Plate)是利用喷墨打印机将制版用墨水 喷涂在金属版基或聚合物版基表面形成亲油的图文区域,未喷涂墨水的区域为亲水的非 图文区域, 利用图文区域与非图文区域的亲水与亲油的反差实现印刷的制版技术。 喷墨 打印直接制版技术避免了曝光、 显影等后处理过程, 所得印版上机印刷后分辨率和耐印 力较好。 目前喷墨打印直接制版用墨水主要是弱溶剂墨水, 弱溶剂墨水在使用时易堵塞 打印机喷头, 固化时产生的有毒有害气体会对环境造成污染。 水基墨水有良好的打印流 畅性, 固化时无有毒气体放出, 同时通过调整水基墨水的浓度和组成, 可以实现较好的 图像分辨率和高的耐印力。
目前喷墨打印用水基墨水主要应用于普通纸或带防扩散涂层的纸、 胶片、 各种纤维 类基材。 喷墨打印直接制版技术是采用金属基材, 要求水基墨水在金属基材上的扩散能 够得到有效控制, 同时保证图文区域与非图文区域的亲水与亲油的反差, 以实现上机印 刷时的图像分辨率和耐印力。
在目前的喷墨打印用速干型水基墨水中, 以色列的 VIM公司推出的喷墨打印直接 制版技术中, 其墨水采用的是标准的 Epson水性墨水, 但该墨水的价格高。
发明内容
本发明的目的之一在于避免弱溶剂墨水在喷墨打印直接制版时易堵塞打印机喷头, 提供一种用于喷墨打印直接制版技术的高分辨率水基墨水。
本发明的目的之二是提供一种用于喷墨打印直接制版技术的高分辨率水基墨水的 制备方法。
本发明的喷墨打印直接制版的高分辨率水基墨水是由聚合物、 助剂、 染料或颜料、 有机溶剂、 消泡剂及以去离子水为主体的混合溶剂组成, 将该墨水通过喷墨打印制版机 喷涂在金属基材表面 (金属基材可以为铝版、 锌版或铜版), 形成图文区域, 固化后得 到可以直接上机印刷的印版。
本发明的喷墨打印直接制版的高分辨率水基墨水, 以所述的水基墨水的总量为基 准, 该水基墨水的组成及含量为:
聚合物 5〜40wt% (优选为 10〜30wt% )
助剂 0.01〜10wt% (优选为 0.1〜5wt% )
染料或颜料 0.01〜10wt% (优选为 0.05〜5wt% )
有机溶剂 l〜30wt%
消泡剂 0〜5wt% (优选为 0.01-5wt% )
去离子水 余量
所述的聚合物选自聚氨酯树脂、 环氧树脂、 水溶性酚醛树脂、 聚乙烯醇、 聚乙烯吡 咯垸酮、 聚乙二醇、 明胶、 阿拉伯树胶、 聚丙烯酸树脂、 醇酸树脂、 聚甲基丙烯酸树脂、 丙烯酸与丙烯酸酯类单体的共聚物、 甲基丙烯酸与甲基丙烯酸酯类单体的共聚物、 聚乙 烯醇缩醛和水溶性纤维素所组成的组中的至少一种。
所述聚氨酯树脂可以为常用的各种由异氰酸酯与含羟基的化合物缩合而得到的树 脂, 所述异氰酸酯和含羟基化合物可以为本领域的常规选择。 例如, 所述异氰酸酯可以 选自甲苯二异氰酸酯、 异佛尔酮二异氰酸酯、 对苯二异氰酸酯、 甲基环己基二异氰酸酯 和环己垸 -1,4-二异氰酸酯, 所述含羟基化合物可以选自聚碳酸酯二醇、 聚醚三醇、 聚醚 二醇 (如聚氧化丙烯二醇、 聚四氢呋喃二醇、 聚丙二醇和聚乙二醇)、 聚酯二醇和聚丙 烯酸酯多元醇。
所述环氧树脂可以为常用的各种环氧树脂, 没有特别限定。 例如, 所述环氧树脂可 以为缩水甘油醚类环氧树脂、 缩水甘油酯类环氧树脂、 缩水甘油胺类环氧树脂、 线型脂 肪族类环氧树脂或脂环族类环氧树脂。
本发明对于丙烯酸与丙烯酸酯类单体的共聚物中由丙烯酸形成的结构单元和由丙 烯酸酯类单体形成的结构单元的相对比例没有特别限定, 一般地, 所述丙烯酸与丙烯酸 酯类单体的共聚物中, 由丙烯酸形成的结构单元与由丙烯酸酯类单体形成的结构单元的 重量比可以为 1 : 1-15。 本发明中, 丙烯酸与丙烯酸酯类单体的共聚物可以为无规共聚 物, 也可以为嵌段共聚物, 没有特别限定。
本发明对于甲基丙烯酸与甲基丙烯酸酯类单体的共聚物中由甲基丙烯酸形成的结 构单元和由甲基丙烯酸酯类单体形成的结构单元的相对比例没有特别限定, 一般地, 所 述甲基丙烯酸与甲基丙烯酸酯类单体的共聚物中, 由甲基丙烯酸形成的结构单元与由甲 基丙烯酸酯类单体形成的结构单元的重量比可以为 1 : 1-15。 本发明中, 甲基丙烯酸与 甲基丙烯酸酯类单体的共聚物可以为无规共聚物,也可以为嵌段共聚物,没有特别限定。
所述的丙烯酸酯类单体选自丙烯酸甲酯、丙烯酸乙酯、丙烯酸丙酯、丙烯酸正丁酯、 丙烯酸月桂酯、 丙烯酸十八酯和丙烯酸 -2-乙基己酯所组成的组中的至少一种。
所述的甲基丙烯酸酯类单体选自甲基丙烯酸甲酯、 甲基丙烯酸丁酯、 2-苯氧基乙基 甲基丙烯酸酯和甲基丙烯酸酯缩水甘油酯所组成的组中的至少一种。
所述的助剂选自可以降低表面张力的助剂,例如有机硅类流平剂和 /或有机氟类流平 剂。
所述的有机硅类流平剂选自聚二甲基硅氧垸、 聚甲基苯基硅氧垸、 聚醚改性有机硅
(例如聚醚与有机硅的共聚物, 其具体实例可以包括聚醚改性聚二甲基硅氧垸)、 聚酯 改性有机硅 (例如聚酯与有机硅的共聚物) 所组成的组中的至少一种。
所述的有机氟类流平剂选自含氟丙烯酸树脂(例如: 分子结构中的氢原子被氟原子 取代的丙烯酸树脂、 以及分子结构中的氢原子被含氟的烃基取代的丙烯酸树脂, 所述含 氟烃基优选为含氟垸基, 更优选为 d-C5的含氟垸基, 进一步优选为 CF3-)和含氟聚醚 流平剂等所组成的组中的至少一种。
使用上述流平剂时, 可同时选用消泡剂, 所述消泡剂例如可以为选自天然油脂、 聚 醚和高碳醇等所组成的组中的至少一种。本发明中,所述高碳醇是指碳原子数为 10 (例 如 10-30) 的脂肪醇。
所述的聚醚可选自聚醚 F-68、 聚醚 3050、 聚醚 L-61、 聚醚 L-68、 聚醚 204、 聚醚
P-65、 聚醚 3010、 聚醚 F-38和聚醚 L-64等常用聚醚所组成的组中的至少一种。
所述的染料选自活性染料、 酸性染料或碱性染料中的一种。
所述的活性染料是黑色染料 SP系列或活性黑中的一种。
所述的酸性染料是染料酸性蓝或染料酸性黄中的一种。
所述的碱性染料是蓝色染料中的碱性艳兰或维多利亚兰中的一种。
所述的染料酸性蓝是酸性蓝 9、 酸性蓝 25、 酸性蓝 40、 酸性蓝 62、 酸性蓝 324、 酸 性蓝 AS、 酸性蓝 AGG、 酸性蓝 2BR和酸性蓝 BR中的一种。
所述的染料酸性黄是染料酸性黄 3、 染料酸性黄 23、 染料酸性黄 49、 染料酸性黄 127和染料酸性黄 6G中的一种。
所述的颜料的颗粒的粒径为 5〜1000nm。 加入颜料的墨水需在球磨机上研磨, 至粒 子稳定分散。 所述的颜料是颜料黄、 颜料橘黄、 颜料红、 颜料紫、 颜料蓝、 颜料绿、 颜 料棕、 颜料黑、 颜料白和金属颜料中的一种。
所述的有机溶剂选自乙醇、 丙醇、 异丙醇、 正丁醇、 叔丁醇、 乙腈、 四氢呋喃、 1,4- 二氧六环、 二甲亚砜、 Ν,Ν-二甲基甲酰胺、 乙二醇乙醚 (例如, 乙二醇单乙醚、 乙二醇 二乙醚)、 丙二醇甲醚 (例如, 丙二醇单甲醚、 丙二醇二甲醚)、 丙二醇乙醚 (例如, 丙 二醇单乙醚、 丙二醇二乙醚)、 二乙二醇甲醚 (例如, 二乙二醇单甲醚、 二乙二醇二甲 醚)、 乙二醇单正丁醚、 乙二醇二甲醚、 丙二醇异丙醚 (例如, 丙二醇单异丙醚、 丙二 醇二异丙醚)、 丙二醇单丁醚、 丙二醇二丁醚、 一缩二乙二醇单乙醚、 二乙二醇二乙醚、 一缩二乙二醇单丁醚、 一缩二丙二醇单甲醚、 一缩二丙二醇二甲醚、 一缩二丙二醇二乙 醚、 一缩二丙二醇二丙醚、 一缩二丙二醇单乙醚、 一缩二丙二醇单丁醚、 二缩三乙二醇 单乙醚、 二缩三乙二醇单丁醚、 二缩三丙二醇单甲醚、 乙二醇、 丙二醇、 丙三醇、 二乙 二醇和三乙二醇所组成的组中的至少一种。
所述的去离子水的电导率小于 10微西门子 /厘米。
本发明的喷墨打印直接制版的高分辨率水基墨水的制备方法, 以所述的水基墨水的 总量为基准,将 5〜40wt% (优选为 10〜30wt% )的聚合物、 0.01〜10wt% (优选为 0.1〜 5wt ) 的助剂、 0.01〜10wt% (优选为 0.05〜5wt% ) 的染料或颜料、 l〜30wt%的有机 溶剂、 0〜5wt% (优选为 0.01-5wt% ) 的消泡剂及余量的去离子水在室温 (例如, 15-35
°C ) 下搅拌混合, 待聚合物完全溶解后, 将混合液过滤, 所得到的滤液即为本发明的水 基墨水。
所述的过滤可以采用多级过滤。所述的多级过滤可采用滤膜对混合溶液进行多次过 滤, 或者依次用砂芯漏斗和滤膜对混合溶液进行过滤, 优选是依次用砂芯漏斗和滤膜对 混合溶液进行过滤, 具体而言: 先用砂芯漏斗进行过滤, 再采用微米孔径的滤膜进行过 滤, 所得到的滤液即为本发明的水基墨水。
所述的采用砂芯漏斗进行过滤, 优选过滤方案为先采用孔径为 20〜30微米的玻璃 砂芯漏斗 (G1型玻璃砂芯漏斗)进行过滤后, 再采用孔径为 3〜4微米的玻璃砂芯漏斗 (G4型玻璃砂芯漏斗) 进行过滤。
所述的采用微米孔径的滤膜进行过滤, 优选方案为先采用孔径为 0.3〜0.5微米的聚 四氟乙烯微孔滤膜进行过滤后,再采用孔径为 0.15〜0.25微米的聚四氟乙烯微孔滤膜进 行过滤。
本发明的喷墨打印直接制版的高分辨率水基墨水, 可通过计算机控制的喷墨打印机 (如 CTP7600制版系统 (请见 CN1800982A)) 将水基墨水喷涂在金属基材表面上形成 图文区域,然后将版基固化后得到可以直接上机印刷的印版,所得的印版的分辨率较好, 能够达到 2〜99%的网点再现率和 175 lpi的分辨率。 本发明的喷墨打印直接制版的高分 辨率水基墨水的成本低, 由此可使喷墨打印直接制版技术更易推广。 具体实施方式
实施例 1
将占高分辨率水基墨水总量 5 wt%的聚氨酯树脂 (商购自烟台万华聚氨酯股份有限 公司, 牌号为 WANNATE PM-2025), 0.01 wt%的聚醚改性聚二甲基硅氧垸 (购自德国 毕克公司, 牌号为 BYK-331 ), 0.01 wt%的碱性艳兰, 1 wt%的异丙醇, 5 wt%的天然油 脂及余量的去离子水混合; 室温搅拌 2小时, 混合溶液经过滤后所得的滤液即为水基墨 水。 实施例 2
将占高分辨率水基墨水总量 40 wt%的聚氨酯树脂 (商购自烟台万华聚氨酯股份有 限公司, 牌号为 WANNATE PM-2025), 10 wt%的聚二甲基硅氧垸 (购自广州市斯洛柯 化学有限公司, 牌号为 Silok® 201-100), 30 wt%的丙二醇, 10 wt%的黑色染料 SP及余 量的去离子水混合; 室温搅拌 6小时, 用滤膜对混合溶液进行过滤, 混合溶液经过滤后 所得的滤液即为水基墨水。 实施例 3
将占高分辨率水基墨水总量 20 wt%的环氧树脂(购自江苏三木集团,牌号为 E-51 ), 1 wt%的聚甲基苯基硅氧垸 (购自阿法埃莎(天津)化学有限公司, 型号为: MW 2500-2700), 10 wt% 乙腈, 0.03 \¥ 的酸性蓝 25, 0.1 wt%的聚醚 F-68及余量的去离 子水混合; 室温搅拌 3小时, 混合溶液经过滤后所得的滤液即为水基墨水。 实施例 4
将占高分辨率水基墨水总量 30 wt%的水溶性酚醛树脂 (购自山东圣泉化工股份有 限公司, 牌号为 PF-7210), 0.1 wt%的聚醚改性有机硅(购自福建石狮市绿宇化工贸易有 限公司, 牌号为 AE 61 CN), 0.06 wt%的活性黑, 15 wt%的四氢呋喃, 0.5 wt¾^高碳醇 (购自辽阳华兴化学品有限公司)及余量的去离子水混合; 室温搅拌 4小时, 混合溶液 经过滤后所得的滤液即为水基墨水。 实施例 5
将占高分辨率水基墨水总量 25 wt%的聚乙烯醇 (购自北京中汇联合新型材料有限 公司, 牌号为 PVA17-99), 0.5 wt%的聚酯改性有机硅(购自湖北新四海化工股份有限公 司, 牌号为 SH-022), 0.05 \¥1%的维多利亚兰, 2 \¥ 的 1,4-二氧六环, 0.3 wt%的聚醚 3050 (购自江阴市飞云化工有限公司)及余量的去离子水混合; 室温搅拌 3小时, 混合 溶液经过滤后所得的滤液即为水基墨水。 实施例 6
将占高分辨率水基墨水总量 30 wt%的聚乙烯吡咯垸酮 (购自国药集团化学试剂北 京有限公司, 牌号为 PVP K30), 0.01 wt%的聚醚改性有机硅(购自德国毕克公司, 牌号 为 BYK-306), 1 wt%的染料酸性黄 23 SF, 3 wt%的二甲亚砜, 1 wt%的聚醚 L-64 (购自江 苏省海安石油化工厂)及余量的去离子水混合; 室温搅拌 2小时, 混合溶液经过滤后所 得的滤液即为水基墨水。 实施例 7
将占高分辨率水基墨水总量 10 wt%的聚乙二醇 (购自国药集团化学试剂北京有限 公司, 牌号为 PEG-400), 0.05 wt%的含氟丙烯酸树脂 (购自上海风标化学科技有限公 司, 牌号为 FB8700), 0.5 wt%的碱性艳兰, 10 wt%的 Ν,Ν-二甲基甲酰胺, 2 wt%的聚醚 3010 (购自美国陶氏化学公司)及余量的去离子水混合; 室温搅拌 5小时, 混合溶液经 过滤后所得的滤液即为水基墨水。 实施例 8
将占高分辨率水基墨水总量 25 wt%的明胶 (购自国药集团化学试剂北京有限公司), 0.01 wt%的含氟丙烯酸树脂 (购自上海风标化学科技有限公司, 牌号为 FB8700), 0.02 wt%的酸性蓝 40, 1 wt%的乙二醇单正丁醚, 0.5 wt%的天然油脂及余量的去离子水混合; 室温搅拌 4小时, 混合溶液经过滤后所得的滤液即为水基墨水。 实施例 9
将占高分辨率水基墨水总量 30 wt%的阿拉伯树胶 (购自国药集团化学试剂北京有 限公司), l wt%的含氟聚醚 (购自德国毕克公司, 牌号为 BYK-340), 10 ^%的染料酸 性蓝 9, 6 Wt%的二乙二醇单甲醚及余量的去离子水混合; 室温搅拌 4小时, 混合溶液 经过滤后所得的滤液即为水基墨水。 实施例 10
将占高分辨率水基墨水总量 20 ^%的聚丙烯酸树脂 (购自淄博峰源化工有限公司, 牌号为 ZB-25 ), 0.1 wt%的含氟丙烯酸树脂 (购自上海风标化学科技有限公司, 牌号为 FB8700), 0.6 \¥ 的颜料棕 (粒径为 500 nm),
Figure imgf000008_0001
%的乙醇, 0.1 wt%的聚醚 F-38 (商 购自江苏省海安石油化工厂)及余量的去离子水混合; 室温搅拌 5小时, 混合溶液经过 滤后所得的滤液即为水基墨水。 实施例 11
将占高分辨率水基墨水总量 35 wt%的醇酸树脂 (购自北京坤奇伟杰工贸有限公司, 牌号为 SY3898 ) , 0.5 wt%的聚醚改性聚二甲基硅氧垸 (购自德国毕克公司, 牌号为 BYK-331 ), 0.25 wt%的碱性艳兰, 30 wt%的一缩二乙二醇单丁醚及余量的去离子水混 合; 室温搅拌 5小时, 混合溶液经过滤后所得的滤液即为水基墨水。 实施例 12
将占高分辨率水基墨水总量 30 wt%的聚甲基丙烯酸树脂 (购自济南远祥化工有限 公司, 牌号为 BC-201-805), 1 wt%的聚甲基苯基硅氧垸 (购自阿法埃莎 (天津)化学有限 公司, 型号为: MW 2500-2700), 0.2 \¥^的颜料黑 (粒径为 100 nm), 8 \¥ 的一缩二 丙二醇二甲醚, 0.02 ^%的高碳醇 (购自辽阳华兴化学品有限公司) 及余量的去离子水 混合; 室温搅拌 5小时, 混合溶液经过滤后所得的滤液即为水基墨水。 实施例 13
将占高分辨率水基墨水总量 25 Wt%的丙烯酸与丙烯酸甲酯的无规共聚物 (以由丙 烯酸形成的结构单元和由丙烯酸甲酯形成的结构单元的总量为基准, 由丙烯酸形成的结 构单元的含量为 6.25 wt ), 3 wt%的聚二甲基硅氧垸(购自广州市斯洛柯化学有限公司, 牌号为 Silok® 201-100), 0.3 wt%的碱性艳兰, 20 wt%的二乙二醇二甲醚, 0.03 wt%的聚 醚 P-65 (购自江苏省海安石油化工厂) 及余量的去离子水混合; 室温搅拌 5小时, 混合 溶液经过滤后所得的滤液即为水基墨水。 实施例 14
将占高分辨率水基墨水总量 15 wt%的甲基丙烯酸与甲基丙烯酸甲酯的无规共聚物 (以由丙烯酸形成的结构单元和由丙烯酸甲酯形成的结构单元的总量为基准, 由丙烯酸 形成的结构单元的含量为 50 wt% ), 5 wt%的聚醚改性有机硅 (购自福建石狮市绿宇化 工贸易有限公司, 牌号为 AE 61 CN), 0.5 wt%的颜料蓝 (粒径为 lOOOnm), 5 wt%的二 乙二醇单甲醚, 0.06 wt%的聚醚 204 (购自江苏省海安石油化工厂) 及余量的去离子水 混合; 室温搅拌 5小时, 混合溶液经过滤后所得的滤液即为水基墨水。 实施例 15
将占高分辨率水基墨水总量 10 wt%的聚乙烯醇缩丁醛 (购自国药集团化学试剂北 京有限公司, 采用 GB/T 1723-93中规定的方法, 采用涂 -4粘度计在 25°C测定的粘度为 100-120秒), 0.2 wt%的聚酯改性有机硅 (购自湖北新四海化工股份有限公司, 牌号为 SH-022), 0.4 ^%的颜料黄 (粒径为 5 nm), 15 wt%的丙二醇单丁醚, 及余量的去离子 水混合; 室温搅拌 5小时, 混合溶液经过滤后所得的滤液即为水基墨水。 实施例 16
将占高分辨率水基墨水总量 5 Wt%的水溶性纤维素 (购自泸州同益科技化工有限公 司, 牌号为 EK-70), 0.02 wt%的聚醚改性聚二甲基硅氧垸 (购自德国毕克公司, 牌号为 BYK-331 ), 0.5 wt%的碱性艳兰, 20 wt%的正丁醇及余量的去离子水混合; 室温搅拌 5 小时, 混合溶液经过滤后所得的滤液即为水基墨水。 实施例 17
将占高分辨率水基墨水总量 10 wt%的水溶性酚醛树脂 (购自山东圣泉化工股份有 限公司, 牌号为 PF-7210) 和 10 wt%的环氧树脂 (购自中山市三乡镇博锐树脂材料贸易 商行, 牌号为 815), 0.06 wt%的聚醚改性聚二甲基硅氧垸(购自德国毕克公司, 牌号为 BYK-331 ), l wt%的酸性蓝 62, 10 wt%的乙二醇单乙醚及余量的去离子水混合; 室温 搅拌 3小时, 混合溶液经过滤后所得的滤液即为水基墨水。 实施例 18
将占高分辨率水基墨水总量 5 wt%的环氧树脂 (购自江苏三木集团, 牌号为 E-51 ) 和 25 wt%的聚氨酯树脂 (商购自烟台万华聚氨酯股份有限公司, 牌号为 WANNATE PM-2025 ) , 0.05 wt%的含氟丙烯酸树脂 (购自上海风标化学科技有限公司, 牌号为 FB8700), 10 \¥ 的酸性蓝 324, 2 wt%的丙二醇单甲醚, 0.01 wt%的天然油脂及余量的 去离子水混合; 室温搅拌 4小时, 混合溶液经过滤后所得的滤液即为水基墨水。
实施例 19
将占高分辨率水基墨水总量 10 wt%的水溶性酚醛树脂 (购自山东圣泉化工股份有 限公司, 牌号为 PF-7210) 和 15 wt%的聚乙烯吡咯垸酮 (购自国药集团化学试剂北京有 限公司, 牌号为 PVP K30), 0.01 wt%的聚二甲基硅氧垸(购自广州市斯洛柯化学有限公 司, 牌号为 Silok® 201-100), 0.12 wt¾^酸性蓝 AS, 15 wt%的二乙二醇及余量的去离子 水混合; 室温搅拌 5小时, 混合溶液经过滤后所得的滤液即为水基墨水。 实施例 20
将占高分辨率水基墨水总量 25 wt%的环氧树脂 (购自江苏三木集团, 牌号为 E-51 ) 及 5 wt%的聚乙二醇(购自国药集团化学试剂北京有限公司, 牌号为 PEG-400), 10 wt 的聚醚改性有机硅(购自福建石狮市绿宇化工贸易有限公司, 牌号为 AE 61 CN), 1 wt 的染料酸性黄 23 SF, l wt%的三乙二醇, 2 wt%的聚醚 L-64 (购自江苏省海安石油化工 厂)及余量的去离子水混合; 室温搅拌 4小时, 混合溶液经过滤后所得的滤液即为水基 墨水。 实施例 21
将占高分辨率水基墨水总量 30 wt%的聚氨酯树脂 (购自烟台万华聚氨酯股份有限 公司, 牌号为 WANNATE PM-2025 )和 10 wt%的水溶性纤维素(购自泸州同益科技化工 有限公司, 牌号为 EK-70), 1 wt%的聚甲基苯基硅氧垸 (购自阿法埃莎 (天津)化学有限 公司, 型号为: MW 2500-2700), 5 wt% 酸性蓝 AGG, 8 \¥1%的乙醇, 0.05 wt%的聚醚 F-38 (购自江苏省海安石油化工厂) 及余量的去离子水混合; 室温搅拌 2小时, 混合溶 液经过滤后所得的滤液即为水基墨水。 实施例 22
将占高分辨率水基墨水总量 5 wt%的水溶性酚醛树脂 (购自山东圣泉化工股份有限 公司, 牌号为 PF-7210) 和 20 wt%的聚氨酯树脂 (购自安平县三联过滤器材有限公司, 牌号为 100 ), 0.5 wt%的聚醚改性聚二甲基硅氧垸 (购自德国毕克公司, 牌号为 BYK-331 ), 0.01 \¥ 的酸性蓝 2BR, 15 wt%的异丙醇, 0.4 wt%的高碳醇 (购自辽阳华 兴化学品有限公司)及余量的去离子水混合; 室温搅拌 4小时, 混合溶液经过滤后所得 的滤液即为水基墨水。 实施例 23
将占高分辨率水基墨水总量 15 wt%的水溶性酚醛树脂 (购自山东圣泉化工股份有 限公司, 牌号为 PF-7210)和 20 wt%的聚氨酯树脂(购自安平县三联过滤器材有限公司, 牌号为 100 ), 5 wt%的含氟丙烯酸树脂 (购自上海风标化学科技有限公司, 牌号为 FB8700), 0.8 wt%的酸性蓝 BR, 10 wt%的异丙醇及余量的去离子水混合; 室温搅拌 4 小时, 混合溶液经过滤后所得的滤液即为水基墨水。 上述实施例 10〜20中的过滤使用多级过滤, 是先采用孔径为 20〜30微米的玻璃砂 芯漏斗(G1型玻璃砂芯漏斗)进行过滤后,再采用孔径为 3〜4微米的玻璃砂芯漏斗(G4 型玻璃砂芯漏斗)进行过滤。 然后采用孔径为 0.3〜0.5微米的聚四氟乙烯微孔滤膜进行 过滤后, 再采用孔径为 0.15〜0.25微米的聚四氟乙烯微孔滤膜进行过滤。 实施例 1-9和 21-23中的过滤是采用孔径为 3〜4微米的玻璃砂芯漏斗 (G4型玻璃砂芯漏斗) 进行过 滤。
上述实施例 1〜23中的去离子水的电导率均小于 10微西门子 /厘米。 将上述制备得 到的喷墨打印直接制版用水基墨水,分别利用打印制版机喷涂在印刷制版用的金属版基 (铝版基、锌版基或铜版基)上, 形成图文区域, 固化后得到可以直接上机印刷的印版, 所得的印版分辨率较好, 能够达到 2〜99%的网点再现率和 175 lpi的分辨率。

Claims

权利要求
1. 一种喷墨打印直接制版的水基墨水,其特征是,以所述的水基墨水的总量为基准, 该水基墨水的组成及含量为:
聚合物 5〜40 wt
助剂 0.01〜10 wt%
染料或颜料 0.01〜10 wt%
有机溶剂 l〜30 wt%
消泡剂 0〜5 wt
去离子水 余量
所述的聚合物选自聚氨酯树脂、 环氧树脂、 水溶性酚醛树脂、 聚乙烯醇、 聚乙烯吡 咯垸酮、 聚乙二醇、 明胶、 阿拉伯树胶、 聚丙烯酸树脂、 醇酸树脂、 聚甲基丙烯酸树脂、 丙烯酸与丙烯酸酯类单体的共聚物、 甲基丙烯酸与甲基丙烯酸酯类单体的共聚物、 聚乙 烯醇缩醛和水溶性纤维素所组成的组中的至少一种;
所述的助剂选自有机硅类流平剂和 /或有机氟类流平剂。
2. 根据权利要求 1所述的喷墨打印直接制版的水基墨水, 其特征是: 所述的丙烯酸 酯选自丙烯酸甲酯、 丙烯酸乙酯、 丙烯酸丙酯、 丙烯酸正丁酯、 丙烯酸月桂酯、 丙烯酸 十八酯和丙烯酸 -2-乙基己酯所组成的组中的至少一种;
所述的甲基丙烯酸酯类单体选自甲基丙烯酸甲酯、 甲基丙烯酸丁酯、 2-苯氧基乙基 甲基丙烯酸酯和甲基丙烯酸酯缩水甘油酯所组成的组中的至少一种。
3. 根据权利要求 1所述的喷墨打印直接制版的水基墨水, 其特征是: 所述的有机硅 类流平剂选自聚二甲基硅氧垸、 聚甲基苯基硅氧垸、 聚醚改性有机硅和聚酯改性有机硅 所组成的组中的至少一种;
所述的有机氟类流平剂选自含氟丙烯酸树脂和含氟聚醚流平剂所组成的组中的至 少一种。
4. 根据权利要求 1所述的喷墨打印直接制版的水基墨水, 其特征是: 所述的消泡剂 选自天然油脂、 聚醚和高碳醇所组成的组中的至少一种。
5. 根据权利要求 1所述的喷墨打印直接制版的水基墨水, 其特征是: 所述的染料选 自活性染料、 酸性染料和碱性染料中的一种;
所述的颜料颗粒的粒径为 5〜1000 nm;所述的颜料选自颜料黄、颜料橘黄、颜料红、 颜料紫、 颜料蓝、 颜料绿、 颜料棕、 颜料黑、 颜料白和金属颜料中的一种。
6. 根据权利要求 5所述的喷墨打印直接制版的水基墨水, 其特征是: 所述的活性染 料是黑色染料 SP系列或活性黑中的一种;
所述的酸性染料是染料酸性蓝或染料酸性黄中的一种;
所述的碱性染料是蓝色染料中的碱性艳兰或维多利亚兰中的一种。
7. 根据权利要求 6所述的喷墨打印直接制版的水基墨水, 其特征是: 所述的染料酸 性蓝是酸性蓝 9、酸性蓝 25、酸性蓝 40、酸性蓝 62、酸性蓝 324、酸性蓝 AS、酸性蓝 AGG、 酸性蓝 2BR和酸性蓝 BR中的一种;
所述的染料酸性黄是染料酸性黄 3、 染料酸性黄 23、 染料酸性黄 49、 染料酸性黄 127 和染料酸性黄 6G中的一种。
8. 根据权利要求 1所述的喷墨打印直接制版的水基墨水, 其特征是: 所述的有机溶 剂选自乙醇、 丙醇、 异丙醇、 正丁醇、 叔丁醇、 乙腈、 四氢呋喃、 1,4-二氧六环、 二甲 亚砜、 Ν,Ν-二甲基甲酰胺、 乙二醇乙醚、 丙二醇甲醚、 丙二醇乙醚、 二乙二醇甲醚、 乙 二醇单正丁醚、 乙二醇二甲醚、 丙二醇异丙醚、 丙二醇单丁醚、 丙二醇二丁醚、 一缩二 乙二醇单乙醚、 二乙二醇二甲醚、 一缩二乙二醇单丁醚、 一缩二丙二醇单甲醚、 一缩二 丙二醇二甲醚、 一缩二丙二醇二乙醚、 一缩二丙二醇二丙醚、 一缩二丙二醇单乙醚、 一 缩二丙二醇单丁醚、二缩三乙二醇单乙醚、二缩三乙二醇单丁醚和二缩三丙二醇单甲醚、 乙二醇、 丙二醇、 丙三醇、 二乙二醇和三乙二醇所组成的组中的至少一种。
9. 根据权利要求 1所述的喷墨打印直接制版的水基墨水, 其特征是: 所述的去离子 水的电导率小于 10微西门子 /厘米。
10. 一种根据权利要求 1〜9中任意一项所述的喷墨打印直接制版的水基墨水的制备 方法,以所述的水基墨水的总量为基准,其特征是:将 5〜40 wt%的聚合物、 0.01〜10 wt 的助剂、 0.01〜10 \¥1%的染料或颜料、 1〜30 wt%的有机溶剂、 0〜5 wt%的消泡剂及余 量的去离子水在室温下搅拌混合, 待聚合物完全溶解后, 将混合溶液进行过滤, 所得到 的滤液即为所述的喷墨打印直接制版的水基墨水;
所述的聚合物选自聚氨酯树脂、 环氧树脂、 水溶性酚醛树脂、 聚乙烯醇、 聚乙烯吡 咯垸酮、 聚乙二醇、 明胶、 阿拉伯树胶、 聚丙烯酸树脂、 醇酸树脂、 聚甲基丙烯酸树脂、 丙烯酸与丙烯酸酯类单体的共聚物、 甲基丙烯酸与甲基丙烯酸酯类单体的共聚物、 聚乙 烯醇缩醛和水溶性纤维素所组成的组中的至少一种;
所述的助剂选自有机硅类流平剂和 /或有机氟类流平剂。
PCT/CN2012/081103 2011-09-08 2012-09-07 喷墨打印直接制版的水基墨水及其制备方法 WO2013034096A1 (zh)

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