WO2017073069A1 - インク用エマルション組成物及び水性インク - Google Patents
インク用エマルション組成物及び水性インク Download PDFInfo
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- WO2017073069A1 WO2017073069A1 PCT/JP2016/004738 JP2016004738W WO2017073069A1 WO 2017073069 A1 WO2017073069 A1 WO 2017073069A1 JP 2016004738 W JP2016004738 W JP 2016004738W WO 2017073069 A1 WO2017073069 A1 WO 2017073069A1
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- 239000006260 foam Substances 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 125000004995 haloalkylthio group Chemical group 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- FHKSXSQHXQEMOK-UHFFFAOYSA-N hexane-1,2-diol Chemical compound CCCCC(O)CO FHKSXSQHXQEMOK-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 150000002462 imidazolines Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- QNXSIUBBGPHDDE-UHFFFAOYSA-N indan-1-one Chemical class C1=CC=C2C(=O)CCC2=C1 QNXSIUBBGPHDDE-UHFFFAOYSA-N 0.000 description 1
- 150000002468 indanes Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 150000007529 inorganic bases Chemical class 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- JGHGKNIEYCBHJY-UHFFFAOYSA-L magnesium;5-chloro-2-methyl-1,2-thiazol-3-one;dichloride Chemical compound [Mg+2].[Cl-].[Cl-].CN1SC(Cl)=CC1=O JGHGKNIEYCBHJY-UHFFFAOYSA-L 0.000 description 1
- 125000005641 methacryl group Chemical group 0.000 description 1
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 1
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000000983 mordant dye Substances 0.000 description 1
- NRZRRZAVMCAKEP-UHFFFAOYSA-N naphthionic acid Chemical compound C1=CC=C2C(N)=CC=C(S(O)(=O)=O)C2=C1 NRZRRZAVMCAKEP-UHFFFAOYSA-N 0.000 description 1
- 125000004957 naphthylene group Chemical group 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- PDDANVVLWYOEPS-UHFFFAOYSA-N nitrous acid;n-propan-2-ylpropan-2-amine Chemical compound [O-]N=O.CC(C)[NH2+]C(C)C PDDANVVLWYOEPS-UHFFFAOYSA-N 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 125000005574 norbornylene group Chemical group 0.000 description 1
- JPMIIZHYYWMHDT-UHFFFAOYSA-N octhilinone Chemical compound CCCCCCCCN1SC=CC1=O JPMIIZHYYWMHDT-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000002896 organic halogen compounds Chemical class 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229960004321 pentaerithrityl tetranitrate Drugs 0.000 description 1
- LQPLDXQVILYOOL-UHFFFAOYSA-I pentasodium;2-[bis[2-[bis(carboxylatomethyl)amino]ethyl]amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC(=O)[O-])CCN(CC([O-])=O)CC([O-])=O LQPLDXQVILYOOL-UHFFFAOYSA-I 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- 229940083254 peripheral vasodilators imidazoline derivative Drugs 0.000 description 1
- 125000005562 phenanthrylene group Chemical group 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 239000000985 reactive dye Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical class OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 1
- 238000000851 scanning transmission electron micrograph Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000000235 small-angle X-ray scattering Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000019259 sodium dehydroacetate Nutrition 0.000 description 1
- 229940079839 sodium dehydroacetate Drugs 0.000 description 1
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- LROWVYNUWKVTCU-STWYSWDKSA-M sodium sorbate Chemical compound [Na+].C\C=C\C=C\C([O-])=O LROWVYNUWKVTCU-STWYSWDKSA-M 0.000 description 1
- 235000019250 sodium sorbate Nutrition 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- DSOWAKKSGYUMTF-GZOLSCHFSA-M sodium;(1e)-1-(6-methyl-2,4-dioxopyran-3-ylidene)ethanolate Chemical compound [Na+].C\C([O-])=C1/C(=O)OC(C)=CC1=O DSOWAKKSGYUMTF-GZOLSCHFSA-M 0.000 description 1
- HCJLVWUMMKIQIM-UHFFFAOYSA-M sodium;2,3,4,5,6-pentachlorophenolate Chemical compound [Na+].[O-]C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl HCJLVWUMMKIQIM-UHFFFAOYSA-M 0.000 description 1
- 238000007614 solvation Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- UUCCCPNEFXQJEL-UHFFFAOYSA-L strontium dihydroxide Chemical compound [OH-].[OH-].[Sr+2] UUCCCPNEFXQJEL-UHFFFAOYSA-L 0.000 description 1
- 229910001866 strontium hydroxide Inorganic materials 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 229950000244 sulfanilic acid Drugs 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 239000000988 sulfur dye Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229960003080 taurine Drugs 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 125000005556 thienylene group Chemical group 0.000 description 1
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 description 1
- 229950006389 thiodiglycol Drugs 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- JSPLKZUTYZBBKA-UHFFFAOYSA-N trioxidane Chemical class OOO JSPLKZUTYZBBKA-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
- D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- D06P1/5214—Polymers of unsaturated compounds containing no COOH groups or functional derivatives thereof
- D06P1/5221—Polymers of unsaturated hydrocarbons, e.g. polystyrene polyalkylene
-
- 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
- C09D11/023—Emulsion inks
-
- 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
-
- 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
-
- 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
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated 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
- C09D11/106—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
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
-
- 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
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/328—Inkjet printing inks characterised by colouring agents characterised by 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
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/16—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dispersed, e.g. acetate, dyestuffs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
- D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- D06P1/525—Polymers of unsaturated carboxylic acids or functional derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
- D06P1/65118—Compounds containing hydroxyl groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/001—Special chemical aspects of printing textile materials
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/30—Ink jet printing
Definitions
- the present invention relates to a novel ink emulsion composition having very high storage stability and a water-based ink composition using the same.
- Inkjet printing is widely used as a printer for office and home use as information is digitized, but in recent years, many applications have been developed for commercial printing and textile printing.
- the colorants used in ink vary from conventional water-soluble dyes such as acid dyes or direct dyes to water-insoluble color materials such as disperse dyes and pigments. Color materials have come to be used.
- disperse dyes are widely used for industrial dyeing of hydrophobic fibers such as polyester, and water-insoluble dyes are dispersed in a dye bath or color paste and used for dyeing.
- the dye penetrates and diffuses in a dispersed state inside the fiber under high temperature conditions, and is dyed by hydrogen bonds between fiber dyes or intermolecular forces. If the dispersibility of the dye, particularly the dispersibility at high temperature, is inferior, the agglomeration of the dye occurs in the high-temperature dyeing bath, and specs on the fiber (dyes that are poorly dispersed at the time of dyeing adhere to the fiber in the form of dots. Phenomenon that causes stains).
- dispersants having excellent high-temperature dispersibility such as formaldehyde condensates of lignin sulfonic acid, formaldehyde condensates of alkylnaphthalene sulfonic acid, formaldehyde condensate of creosote oil sulfonic acid, etc.
- System dispersants have been mainly used.
- Non-patent Document 1 Inkjet printing of polyester fibers using disperse dyes has also been carried out (Non-patent Document 1, Non-patent Document 2).
- dye ink is applied (printed) mainly to the fiber, the dye is applied by heat treatment such as steaming.
- a direct printing method for dyeing and a thermal transfer printing method in which dye ink is applied (printed) to a dedicated transfer paper and then sublimated and transferred from the transfer paper side to the fiber side by heat are put into practical use.
- anionic dispersants conventionally used for industrial dyeing are used (Patent Documents 1 and 2).
- Patent Document 3 uses the dispersant represented by Formula 1 and has good ejection stability, but it has been found that there is still a problem in sedimentation stability (storage stability).
- the ink composition used for ink jet recording and the colored bodies colored thereby are highly colored and have various fastnesses such as light resistance and water resistance. There is a need to be good. Further, ink compositions used for ink jet recording are strongly required to be stable as ink for a long period of time and to be dissolved or dispersed again in water when dried.
- disperse dyes are required to be stable for a long time.
- a dye that exists in a dispersed state as particles instead of molecules in an ink undergoes a sedimentation phenomenon over time due to aggregation of the dye particles.
- a density gradient occurs in the ink, and the initial printing characteristics cannot be obtained, or in the worst case, the aggregated particles are clogged in the nozzle and cannot be ejected.
- Patent Document 6 An ink composition in which a dispersion is prepared using a polymer dispersant.
- Patent Document 5 discloses an ink composition using a self-dispersing pigment.
- Patent Document 8 discloses a production method thereof.
- none of the ink compositions has yet provided a product that sufficiently satisfies the market demand.
- the present invention solves the above-mentioned problems in the prior art, and the storage stability of the dispersion is good. Even when used as an ink composition, the stability is good, and even when stored for a long time, the physical properties of the ink change. It aims at providing the emulsion composition for inks which does not produce.
- the present inventors have achieved very high ink stability with an emulsion liquid containing a dye and / or pigment, a styrene-acrylic copolymer, and a propylene glycol solvent. And the present invention has been achieved.
- the present invention relates to the following 1) to 18).
- 1) (A) a dye and / or pigment, (B) a styrene- (meth) acrylic copolymer, and (C) a compound represented by the following formula (1), (C) represented by the following formula (1)
- t represents 1 to 5.
- the component (A) is C.I. I. Disperse Yellow 54, C.I. I.
- an ink emulsion composition having excellent storage stability is obtained, and by using this, an aqueous dispersion of a water-insoluble colorant and an ink composition can be realized.
- the emulsion composition of the present invention is a mixture produced when two types of liquids that do not dissolve each other are vigorously stirred.
- oil is emulsified in water or water is emulsified in oil.
- Component (A) in the present invention is a dye and / or a pigment.
- the above dyes are organic dyes that are dyed on fibers by an appropriate dyeing method.
- direct dyes vat dyes, sulfur dyes, disperse dyes, basic dyes, naphthol dyes, acid dyes, acid mordant dyes, mordants And dyes, oil-soluble dyes, reactive dyes, soluble vat dyes, sulfur vat dyes, and oxidation dyes.
- direct dyes vat dyes, sulfur dyes, disperse dyes, basic dyes, naphthol dyes, acid dyes, acid mordant dyes, mordants And dyes, oil-soluble dyes, reactive dyes, soluble vat dyes, sulfur vat dyes, and oxidation dyes.
- Disperse Yellow 3, 4, 5, 7, 8, 9, 13, 23, 24, 30, 33, 34, 39, 42, 44, 49, 50, 51, 54, 56, 58, 60, 63 64, 66, 68, 71, 74, 76, 79, 82, 83, 85, 86, 88, 90, 91, 93, 98, 99, 100, 104, 114, 116, 118, 119, 122, 124 126, 135, 140, 141, 149, 160, 162, 163, 164, 165, 179, 180, 182, 183, 186, 192, 198, 199, 200, 202, 204, 210, 211, 215, 216 218, 224, 237 and the like.
- C.I. I. Disperse Orange is as follows: 1, 1: 1, 3, 5, 7, 11, 13, 17, 20, 21, 23, 24, 25, 25: 1, 29, 30, 31, 32, 33, 37, 38 , 42, 43, 44, 45, 47, 48, 49, 50, 53, 54, 55, 56, 57, 58, 59, 61, 66, 71, 73, 76, 78, 80, 86, 89, 90 91, 93, 96, 97, 118, 119, 127, 130, 139, 142, and the like.
- C.I. I. Disperse Red is 1, 4, 5, 7, 11, 12, 13, 15, 17, 27, 43, 44, 50, 52, 53, 54, 55, 55: 1, 56, 58, 59, 60.
- C.I. I. Disperse violet 1, 4, 8, 11, 17, 23, 26, 27, 28, 29, 31, 33, 35, 36, 38, 40, 43, 46, 48, 49, 50, 51, 52, 56 57, 59, 61, 63, 69, 77, 97, C.I. I. Disperse Green 9, C.I. I. Disperse brown 1, 2, 4, 9, 13, 19, 26, 27, C.I. I.
- the pigment is a white or colored powder insoluble in water, an organic solvent, or the like, and includes an organic pigment and an inorganic pigment.
- an organic pigment or an inorganic pigment may be used, but an organic pigment is preferred.
- a dye is more preferable, and at least one dye selected from a disperse dye, an oil-soluble dye, and a vat dye is even more preferable.
- examples of the dye suitable for thermal transfer include C.I. I. Disperse yellow 51, 54, 60, 71, 82, 211, C.I. I. Disperse orange 5, 7, 20, 23, 24, 25, 25: 1, C.I. I. Disperse thread 4, 11, 50, 53, 59, 60, 239, 240, 364, C.I. I. Disperse violet 8, 11, 17, 26, 27, 28, 36, C.I. I.
- Disperse Blue 3, 5, 26, 35, 55, 56, 72, 81, 91, 108, 334, 359, 360, 366, C.I. I. Disperse Brown 26, 27, C.I. I. Solvent Yellow 114, C.I. I. Solvent Orange 60, 67, C.I. I. Solvent Red 146, C.I. I. Solvent Blue 36, 63, 83, 105, 111 etc. can be mentioned, More preferably, C.I. I. Disperse Yellow 54, C.I. I. Disperse Orange 25, C.I. I. Disperse thread 60, C.I. I. Disperse blue 72,359,360, C.I. I. Disperse Brown 26, 27, C.I. I. Solvent Orange 60 and the like, particularly preferably C.I. I. Disperse Yellow 54, C.I. I. Disperse Orange 25, C.I. I. This is a disperse thread 60.
- color materials may be powdery or lump dry color materials, wet cakes or slurries, and contain a small amount of a dispersant such as a surfactant for the purpose of suppressing aggregation of the color material particles during or after the color material synthesis. It may be a thing.
- a dispersant such as a surfactant for the purpose of suppressing aggregation of the color material particles during or after the color material synthesis. It may be a thing.
- These commercially available color materials include industrial dyeing grades, resin coloring grades, ink grades, toner grades, and inkjet grades, which differ in production method, purity, pigment particle size, and the like.
- the colorant preferably has smaller particles, and preferably has as few impurities as possible in view of the influence on dispersion stability and ink ejection accuracy.
- the dye can be used as a color material for black by blending an orange dye and a red dye mainly with a blue dye. Further, a small amount of other water-insoluble colorant may be
- the above dyes may be blended.
- an orange dye and a red dye mainly composed of a blue dye are appropriately blended to adjust the color to a black color, and this can be used as a black dye.
- a plurality of dyes may be blended for the purpose of finely adjusting a color tone such as blue, orange, red, violet, or black to a color tone that is more preferred.
- the content of the component (A) in the ink emulsion composition of the present invention is preferably in the range of 0.1 to 30% by mass, and more preferably in the range of 5 to 20% by mass.
- the content of the component (A) in the ink emulsion composition is within the above range, the storage stability and sedimentation of the composition are excellent.
- the component (B) styrene- (meth) acrylic copolymer in the present invention is a copolymer of a styrene monomer and a (meth) acrylic monomer.
- “(meth) acryl” means “acryl” and / or “methacryl”.
- Specific examples of these copolymers include ( ⁇ -methyl) styrene-acrylic acid copolymer, ( ⁇ -methyl) styrene-acrylic acid-acrylic acid ester copolymer, ( ⁇ -methyl) styrene-methacrylic acid.
- the compound containing an aromatic hydrocarbon group is preferably styrene-methacrylic acid-acrylic acid ester copolymer, ( ⁇ -methyl) styrene- (anhydrous) maleic acid copolymer, acrylic acid ester- (anhydrous) maleic acid copolymer, ( ⁇ -methyl) styrene-acrylic acid ester- (anhydrous) maleic acid copolymer, acrylic acid ester-allylsulfonic acid ester copolymer, acrylic acid ester-styrenesulfonic acid copolymer, ( ⁇ -methyl) styrene- Methacrylsulfonic acid copolymer, polyester-acrylic acid copolymer, polyester-acrylic acid-acrylic acid ester copolymer, Riesuteru - methacrylic acid copolymer, polyester - methacrylic acid - acrylic acid copolymer ester; and the like.
- the compound containing an aromatic hydrocarbon group is preferably st
- component (B) in the present invention examples include Joncryl RTM 52J, 57J, 60J, 63J, 70J, JDX-6180, HPD-196, HPD96J, PDX-6137A, 6610, JDX-6500, JDX-6539, PDX -6102B, PDX-6124 (manufactured by BASF), and the like, but are not limited thereto.
- the superscript RTM means a registered trademark.
- Component (B) in the present invention preferably has a weight average molecular weight of 1000 to 20000, more preferably 2000 to 19000, and particularly preferably 4000 to 17000. If the weight average molecular weight is too small, the dispersion stabilizing ability with respect to the sublimable dye is lowered, and if it is too large, the ability to disperse the sublimable dye is lowered, and the viscosity of the ink may be too high. .
- the weight average molecular weight of the styrene-acrylic acid copolymer is measured by GPC (gel permeation chromatograph) method.
- the glass transition temperature of the styrene- (meth) acrylic copolymer used as component (B) is preferably 45 ° C to 135 ° C, more preferably 55 ° C to 120 ° C, and particularly preferably 60 ° C to 110 ° C. .
- the acid value of the styrene- (meth) acrylic copolymer used as component (B) is preferably 50 to 250 mgKOH / g, more preferably 100 to 250 mgKOH / g, and 150 to 250 mgKOH / g. Is particularly preferred. If the acid value becomes too small, the solubility of the resin in water tends to be poor, and the dispersion stabilization power to sublimation dyes tends to be inferior.
- the acid value of the resin represents the number of mg of KOH required to neutralize 1 g of the resin, and is measured according to JIS-K3054.
- the component (B) styrene- (meth) acrylic copolymer in the present invention preferably has a skeleton represented by the above formula (2) and / or (3) in the molecule.
- n 1 to n 3 represent an integer of 1 to 30.
- m 1 and m 2 represent an integer of 1 to 43.
- the emulsion composition for ink of the present invention can also be prepared by using two kinds of styrene-acrylic copolymer dispersants when dispersing the pigment.
- the emulsion composition of the present invention is preferably produced, for example, by the following method.
- the styrene-acrylic copolymer is put into a water-soluble organic solvent, and the temperature is raised to 90-120 ° C. to dissolve, thereby preparing a styrene-acrylic copolymer solution. Further, a styrene-acrylic copolymer is suspended in water, a neutralizing agent is added thereto, and the temperature is raised to 80-95 ° C. to prepare a neutralized solution.
- a styrene-acrylic copolymer emulsion composition containing a colored product can be produced by mixing and dispersing the styrene-acrylic copolymer solution and the neutralized solution thus prepared with a colorant. .
- the styrene-acrylic copolymer emulsion composition containing a dye and / or pigment is also preferably produced, for example, by the following method.
- the styrene-acrylic copolymer is put into a water-soluble organic solvent, and the temperature is raised to 90-120 ° C. to prepare a styrene-acrylic copolymer solution.
- a neutralizing agent and water are added thereto, the temperature is lowered to obtain an emulsion (emulsion or microemulsion) liquid, and the emulsion liquid thus prepared and the dye and / or pigment are mixed and dispersed, thereby the dye.
- examples of the water-soluble organic solvent include glycerin (boiling point: 290 ° C), ethylene glycol, propylene glycol (boiling point: 188 ° C), dipropylene glycol (boiling point: 230 ° C), butyl carbitol (boiling point: 231 ° C).
- Methyl triglycol triethylene glycol, butyl triglycol, butyl carbitol acetate (boiling point: 247 ° C.), diethylene glycol, 1,5 pentadiol, 1,6 hexanediol, 1,2-hexanediol, methyldiglycol, Tripropylene glycol, methanol (boiling point: 64 ° C), ethanol (boiling point: 78 ° C), 1-propanol (boiling point: 97 ° C), 2-propanol (boiling point: 82 ° C), 1,2-methoxyethane (boiling point: 93 ° C), tetrahydrofuran (boiling point: 66 ° C), p-dioxane (boiling point: 101 ° C), etc. It is. These water-soluble organic solvents may be used alone or in combination.
- the ink emulsion composition before being mixed with the dye and / or pigment is neutralized with a neutralizing agent and then mixed with water, it is necessary to use a neutralizing agent.
- the neutralizing agent include alkali metal hydroxides, alkaline earth metal hydroxides, aliphatic amine compounds, and alcohol amine compounds.
- alkali metal hydroxide examples include lithium hydroxide, sodium hydroxide, and potassium hydroxide.
- alkaline earth metal hydroxide examples include beryllium hydroxide, magnesium hydroxide, calcium hydroxide, and strontium hydroxide.
- the neutralizing agent is preferably an alkali metal hydroxide, more preferably lithium hydroxide, sodium hydroxide or potassium hydroxide, and still more preferably potassium hydroxide.
- Examples of the alcohol amine compound include monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, dipropanolamine, tripropanolamine, methylethanolamine, dimethylethanolamine and N-methyldiethanolamine, preferably tertiary amine. More preferably, it is triethanolamine.
- Examples of the aliphatic amine compound include ammonia, monomethylamine, dimethylamine, trimethylamine, monoethylamine, diethylamine and triethylamine, preferably ammonia or triethylamine.
- neutralizers may be used alone or in combination.
- the amount of the emulsion liquid to be used is preferably 10% to 200%, more preferably 10% to 150%, and particularly preferably 20% to 100% on a mass basis with respect to the dye and / or pigment.
- examples of the dispersion method include a method using a sand mill (bead mill), a roll mill, a ball mill, a paint shaker, an ultrasonic disperser, a microfluidizer, and the like.
- a sand mill (bead mill) is preferable.
- the pulverization of the coloring material in the sand mill it is preferable to use beads having a small diameter, and to perform the treatment under a condition in which the pulverization efficiency is increased by increasing the filling rate of the beads. It is preferable to remove elementary particles by centrifugation or the like.
- ink emulsion compositions have foaming properties, it is preferable to use pulverization conditions that suppress foaming at the time of pulverization as much as possible in order to improve pulverization efficiency.
- An antifoaming agent or the like may be added in an extremely small amount during pigment grinding.
- some antifoaming agents inhibit dispersion and micronization, and it is necessary to use those that do not affect the stability after micronization or dispersion.
- the dispersion can be diluted with a small amount of water and adjusted to a desired colorant concentration.
- the ink emulsion composition of the present invention preferably has a number average particle size of component (A) of 10 to 500 nm.
- the number average particle size of the component (A) is 10 to 500 nm, the storage stability and sedimentation property of the composition are excellent.
- the number average particle diameter is measured according to a dynamic light scattering particle size distribution measuring apparatus or a small angle X-ray scattering method.
- the content of component (B) described above is preferably in the range of 5 to 250% by mass, more preferably in the range of 20 to 150% by mass with respect to component (A).
- the content of the component (B) in the ink emulsion composition is within the above range, the storage stability and sedimentation of the composition are excellent.
- the compound represented by the above formula (1) contained in the ink emulsion composition of the present invention is a propylene glycol compound.
- t represents an integer of 1 to 5, preferably an integer of 1 to 3, and more preferably 1 or 2.
- Specific examples include propylene glycol and dipropylene glycol.
- the content of component (C) exceeds 0.18% by mass. If the content rate of a component (C) is 0.18 mass% or less, the storage stability of a composition cannot fully be improved.
- the content of component (C) is preferably in the range of 1 to 60% by mass, and more preferably in the range of 10 to 30% by mass. When the content of the component (C) in the ink emulsion composition is within the above range, an O / W emulsion composition can be maintained, so that a core-shell type pigment dispersion can be produced. Contributes to improved stability.
- Component (D) of the present invention is a compound having both amino group and sulfo group substituents in the molecule. It is considered that this compound is ionically bonded to the carboxy group of the component (B) and behaves like having a terminal sulfo group, thereby improving the stability.
- a compound represented by the above formula (4) is preferable.
- R in the above formula (4) represents an alkylene group which may have a substituent, an alkylidene group which may have a substituent, or an arylene group which may have a substituent.
- the alkylene group which may have a substituent is a saturated or unsaturated, linear or cyclic (preferably C1-C20) alkylene group, and may have a hetero atom.
- a methylene group, an ethylene group, a propylene group, a butylene group, a cyclopentylene group, a cyclohexylene group, a norbornylene group, an adamantylene group, and the like can be given, preferably a (C1-C10) alkylene group, A (C1-C5) alkylene group is preferred, and a methylene group, ethylene group, and propylene group are particularly preferred.
- examples of the substituent that may be included include a halogen atom; a cyano group; a hydroxy group; a carboxy group; a sulfo group; a sulfamoyl group; a (C1-C4) alkoxy group; a hydroxy group, a (C1-C4) alkoxy group, A (C1-C4) alkoxy group substituted with at least one group selected from the group consisting of a sulfo group and a carboxy group; an N-alkylaminosulfonyl group; an N-phenylaminosulfonyl group; a phospho group; a nitro group; (C1-C6) substituted with at least one group selected from the group consisting of acyl group; ureido group; acylamino group, (C1-C4) alkoxy group, sulfo group and carboxy group An alkyl group etc.
- the alkylidene group which may have a substituent is a saturated or unsaturated, linear or cyclic (preferably C1-C20) alkylidene group, and may have a hetero atom.
- a substituent preferably C1-C20 alkylidene group
- an ethylidene group, a propylidene group, a butylidene group, a cyclopentylidene group, a cyclohexylidene group, a norbornylidene group, an adamantylidene group, and the like can be given, and a (C1-C10) alkylidene group is preferable, and more preferable.
- the arylene group which may have a substituent is a (preferably C1-C20) arylene group, which may have a hetero atom.
- it represents a phenylene group, a thienylene group, a pyrrolylene group, etc., but two or more ring structures may be condensed, such as a naphthylene group, an anthranylene group, a phenanthrylene group, or a quinolylene group.
- R may have an ester structure (—COO—), an ether structure (—O—), or a keto structure (— (C ⁇ O) —).
- Specific examples of the compound represented by the above formula (4) include taurine, 4-amino-1-naphthalenesulfonic acid, hydroxylaminosulfonic acid, 5-amino-1-naphthalenesulfonic acid, hydroxylaminosulfonic acid, 6 -Amino-1-naphthalenesulfonic acid, hydroxylaminosulfonic acid, 3-amino-2,7-naphthalenedisulfonic acid, 2-amino-1,4-benzenesulfonic acid, 4-aminobenzenesulfonic acid and the like.
- the content of component (D) is preferably in the range of 0.1 to 40% by mass, more preferably in the range of 1 to 20% by mass.
- the stability of the ink emulsion composition is improved by solvation due to the influence of the sulfo group.
- the ink emulsion composition of the present invention may further contain (E) a water-soluble organic solvent.
- a water-soluble organic solvent include (C1-C4) alcohols such as methanol, ethanol, propanol, isopropanol, butanol, isobutanol, sec-butanol and tert-butanol; N, N-dimethylformamide, N, Carboxylic acid amides such as N-dimethylacetamide; Lactams such as 2-pyrrolidone, hydroxyethyl-2-pyrrolidone, N-methyl-2-pyrrolidone, N-methylpyrrolidin-2-one; 1,3-dimethylimidazolidine-2 -Cyclic ureas such as 1,3-dimethylhexahydropyrimido-2-one; ketones or ketoalcohols such as acetone, methyl ethyl ketone, 2-methyl
- component (E) water-soluble organic solvent refers to a water-soluble organic solvent other than “component (C) compound represented by formula (1)”.
- the water-soluble organic solvent mentioned above contains substances that are solid at room temperature, such as trimethylolpropane, but these are water-soluble even when they are solid, and when dissolved in water Since it can be used for the same purpose as the water-soluble organic solvent, it is described in the category of the water-soluble organic solvent for the sake of convenience.
- Component (E) is preferably a water-soluble organic solvent having one or more hydroxy groups in the molecule.
- the content of component (E) is preferably in the range of 1 to 60% by mass, and more preferably in the range of 10 to 30% by mass.
- the content of the component (E) in the ink emulsion composition is within the above range, an O / W emulsion composition can be maintained, so that a core-shell type pigment dispersion can be produced. Contributes to improved stability.
- Component (F) Antifoaming Agent It can also be set as the ink dispersion liquid composition which added the (F) antifoamer to the said emulsion composition for inks.
- An antifoaming agent is a substance having an action of eliminating bubbles in a solution or suppressing foaming, and examples thereof include oily substances (such as higher alcohols) having low volatility and high diffusibility, and nonionic surfactants.
- Nonionic surfactants include ethers such as polyoxyethylene nonylphenyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene dodecylphenyl ether, polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene alkyl ether; Ester systems such as polyoxyethylene oleate, polyoxyethylene distearate, sorbitan laurate, sorbitan monostearate, sorbitan monooleate, sorbitan sesquioleate, polyoxyethylene monooleate, polyoxyethylene stearate; 2,4,7,9-tetramethyl-5-decyne-4,7-diol, 3,6-dimethyl-4-octyne-3,6-diol, 3,5-dimethyl Acetylene glycol (alcohol) type such as lu-1-hexyn-3-ol; trade name Surfynol 104, 105, 82, 465
- the content of component (F) is preferably in the range of 0.01 to 0.5% by mass, more preferably in the range of 0.05 to 0.3% by mass.
- Ingredient (G) Preservative It can also be set as the ink dispersion liquid composition which added (G) antiseptic
- 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.
- organic halogen compounds include, for example, pentachlorophenol sodium
- specific examples of pyridine oxide compounds include, for example, 2-pyridinethiol-1-oxide sodium
- isothiazoline compounds include, for example, 1,2-benzisothiazolin-3-one, 2-n-octyl-4-isothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one, 5-chloro-2-methyl-4 -Isothiazolin-3-one magnesium chloride, 5-chloro-2-methyl-4-isothiazolin-3-one calcium chloride, 2-methyl-4-isothiazolin-3-one calcium chloride and the like.
- the other preservatives include anhydrous sodium acetate, sodium sorbate or sodium benzoate, trade names Proxel RTM GXL (S), Proxel RTM XL-2 (S), etc.
- the content of component (G) is preferably in the range of 0.01 to 0.5% by mass, and more preferably in the range of 0.1 to 0.3% by mass.
- the content of the component (G) in the ink dispersion composition is within the above range, it has a fungicidal action and can suppress thickening and the like.
- the emulsion composition for ink of the present invention includes an antifungal agent, a pH adjuster, a chelating reagent, a rust inhibitor, a water-soluble ultraviolet absorber, a water-soluble polymer compound, and a dye-dissolving agent.
- an agent, an antioxidant, a surfactant and the like may be contained.
- Antidepressant examples include sodium dehydroacetate, sodium benzoate, sodium pyridinethione-1-oxide, p-hydroxybenzoic acid ethyl ester, 1,2-benzisothiazolin-3-one and salts thereof.
- an antifungal agent it is preferable to use 0.02 to 1.00% by mass in the emulsion composition.
- any substance can be used as long as it can control the pH of the ink within a range of about 5 to 11 without adversely affecting the prepared ink.
- specific examples thereof include, for example, alkanolamines such as diethanolamine, triethanolamine and N-methyldiethanolamine; hydroxides of alkali metals such as lithium hydroxide, sodium hydroxide and potassium hydroxide; ammonium hydroxide (ammonia water) Alkali metal carbonates such as lithium carbonate, sodium carbonate, sodium hydrogen carbonate and potassium carbonate; alkali metal salts of organic acids such as potassium acetate; inorganic bases such as sodium silicate and disodium phosphate.
- chelating reagent examples include sodium ethylenediaminetetraacetate, sodium nitrilotriacetate, sodium hydroxyethylethylenediaminetriacetate, sodium diethylenetriaminepentaacetate, sodium uracil diacetate and the like.
- rust preventive examples include acid sulfite, sodium thiosulfate, ammonium thioglycolate, diisopropylammonium nitrite, pentaerythritol tetranitrate, dicyclohexylammonium nitrite, and the like.
- Water-soluble UV absorber examples include sulfonated benzophenone compounds, benzotriazole compounds, salicylic acid compounds, cinnamic acid compounds, and triazine compounds.
- Water-soluble polymer compound examples include polyvinyl alcohol, cellulose derivatives, polyamines and polyimines.
- antioxidant for example, various organic and metal complex antifading agents can be used.
- organic anti-fading agent include hydroquinones, alkoxyphenols, dialkoxyphenols, phenols, anilines, amines, indanes, chromans, alkoxyanilines, heterocycles, and the like.
- surfactant examples include known surfactants such as anionic, cationic, nonionic, silicone surfactant, and fluorine surfactant.
- Anionic surfactants include alkyl sulfonates, alkyl carboxylates, ⁇ -olefin sulfonates, polyoxyethylene alkyl ether acetates, N-acyl amino acids and their salts, N-acyl methyl taurates, alkyl sulfates 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 sulfonate, Examples thereof include diethylsulfosuccinate, diethylhexylsylsulfosuccinate, and dio
- an anionic surfactant is particularly preferable, and specifically, diethylsulfosuccinate, diethylhexylsylsulfosuccinate, dioctylsulfosuccinate, and the like.
- Examples of the cationic surfactant include 2-vinylpyridine derivatives and poly-4-vinylpyridine derivatives.
- Amphoteric surfactants include lauryldimethylaminoacetic acid betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, coconut oil fatty acid amidopropyldimethylaminoacetic acid betaine, polyoctylpolyaminoethylglycine, imidazoline derivatives, etc. Is mentioned.
- Nonionic surfactants include ethers such as polyoxyethylene nonylphenyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene dodecylphenyl ether, polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene alkyl ether; Ester systems such as polyoxyethylene oleate, polyoxyethylene distearate, sorbitan laurate, sorbitan monostearate, sorbitan monooleate, sorbitan sesquioleate, polyoxyethylene monooleate, polyoxyethylene stearate; 2,4,7,9-tetramethyl-5-decyne-4,7-diol, 3,6-dimethyl-4-octyne-3,6-diol, 3,5-dimethyl Acetylene glycol (alcohol) type such as lu-1-hexyn-3-ol; trade name Surfynol 104, 105, 82, 465
- silicone surfactant examples include polyether-modified siloxane and polyether-modified polydimethylsiloxane.
- Specific examples of commercially available products include BYK-347 (polyether-modified siloxane); BYK-345 and BYK-348 (polyether-modified polydimethylsiloxane), all manufactured by BYK Chemie. .
- fluorosurfactant examples include perfluoroalkyl sulfonic acid compounds, perfluoroalkyl carboxylic acid compounds, perfluoroalkyl phosphate compounds, perfluoroalkyl ethylene oxide adducts, and perfluoroalkyl ether groups.
- examples include polyoxyalkylene ether polymer compounds having a chain.
- Specific examples of commercially available products include, for example, Zonyl TBS, FSP, FSA, FSN-100, FSN, FSO-100, FSO, FS-300, Capstone FS-30, FS-31 (manufactured by DuPont); PF-151N, PF-154N (Omnova);
- the ink emulsion liquid of the present invention has a diameter of the inscribed circle of 5 nm or more and less than 300 nm, and the concentric circumscribed circle. It is preferable that the emulsion composition contains a majority of particles having a roundness defined by the difference between the inscribed circle radius and the inscribed circle radius of 20 nm or less.
- the ink emulsion composition of the present invention is extremely excellent in storage stability. Therefore, excellent discharge stability can be realized by using a water-based ink, particularly an ink-jet water-based ink.
- a water-based ink the dye and / or pigment is preferably contained in the water-based ink in a range of 0.3 to 10% by mass as a pure color material.
- the above preservatives, antifungal agents, pH adjusters, chelating reagents, rust preventives, water-soluble UV absorbers, water-soluble polymer compounds, dye-dissolving agents, antioxidants, surfactants, and the like are added to form aqueous Ink may be used.
- the pH of the aqueous ink of the present invention is preferably pH 5 to 11 and more preferably pH 7 to 10 for the purpose of improving storage stability.
- the pH and surface tension of the ink composition of the present invention can be appropriately adjusted with a pH adjusting agent and a surfactant as described later.
- the aqueous ink of the present invention may further contain (H) a compound represented by the above formula (5).
- s is an average degree of polymerization and represents 1 to 5. This average degree of polymerization is described as a numerical value rounded off to the first decimal place.
- Specific examples of the compound represented by the formula (5) include compounds such as glycerin, diglycerin, triglycerin, tetraglycerin, pentaglycerin, hexaglycerin, heptaglycerin, and mixtures thereof.
- the degree of polymerization of hexaglycerin and heptaglycerin is 6 and 7, respectively.
- the average degree of polymerization of the mixture is in the above range.
- the aqueous ink of the present invention may contain the mixture.
- the mixture is 50% glycerin and 50% triglycerin
- the average degree of polymerization s is 2, but if the content of glycerin is large, smoke or the like is generated during sublimation transfer, and work in transfer dyeing Problems such as deterioration of the visual field of the environment occur.
- the content of glycerin in the compound represented by the formula (5) is usually 10% or less, preferably 8% or less on the basis of the gas chromatographic method standard (peak area ratio), and the lower limit is that of the analytical instrument. It may be below the detection limit, that is, 0%.
- the content of component (H) is preferably in the range of 5 to 60% by mass, and more preferably in the range of 10 to 40% by mass.
- the content of the component (H) in the water-based ink is within the above range, the storage stability of the ink is excellent, and the generation of smoke during sublimation transfer is small.
- the water-based ink of the present invention can be used in various fields, but is suitable for water-based ink for writing, water-based printing ink, information recording ink, textile printing, etc., and particularly preferably used as ink for ink-jet recording.
- the mixture was filtered with glass fiber filter paper GC-50 (manufactured by Toyo Roshi Kaisha, Ltd., filter pore size 0.5 ⁇ m) to obtain Joncryl 690 emulsion 3 from which components having a large particle size were removed.
- GC-50 manufactured by Toyo Roshi Kaisha, Ltd., filter pore size 0.5 ⁇ m
- Examples 1 to 26, Comparative Examples 1 to 6 Preparation of Ink Dispersion Composition 0.2 mm diameter glass beads were added to the mixture of each component described in Tables 1 to 6 below, and the mixture was cooled with a sand mill under water cooling. The dispersion process was performed for 15 hours. Ion exchange water was added to the obtained liquid to prepare a dye content of 15% in the total mass of the liquid. The obtained liquid was filtered through glass fiber filter paper GC-50 (manufactured by ADVANTEC) to obtain ink dispersion compositions of Examples and Comparative Examples.
- GC-50 manufactured by ADVANTEC
- the dye and styrene- (meth) acrylic copolymer in the ink dispersion composition of the example had a core layer of the dye and a shell layer of styrene.
- Diglycerin S a compound represented by the formula (5), in which s is 2, manufactured by Sakamoto Pharmaceutical Co., Ltd., glycerin content 0.5%
- Surfynol 420 Surfactant, manufactured by Nissin Chemical Industry Co., Ltd.
- Example 34 Preparation of Ink Dispersion Composition 0.2 mm diameter glass beads were added to a mixture of components shown in Table 17 below, followed by dispersion treatment with a sand mill for about 15 hours under water cooling. Ion exchange water was added to the obtained liquid to prepare a dye content of 15% in the total mass of the liquid. The obtained liquid was filtered with glass fiber filter paper GC-50 (manufactured by ADVANTEC) to obtain a dispersion composition for ink of Examples.
- R60 C.I. I. Disperse thread 60 10% SF104PG: Surfinol 104 diluted to 10% with propylene glycol Surfinol 104: Acetylene glycol surfactant (manufactured by Air Products Japan), antifoaming agent Proxel GXL: Preservative (manufactured by Lonza) )
- Example 34 no sedimentation was confirmed in Example 34, the particle size did not change significantly, and the storage stability was at a very excellent level.
- the ink emulsion composition and water-based ink composition of the present invention have high storage stability, and are particularly useful as a water-based ink for inkjet.
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- Ink Jet (AREA)
Abstract
Description
1)
(A)染料及び/又は顔料、(B)スチレン-(メタ)アクリル共重合体、及び(C)下記式(1)で表される化合物を含有し、(C)下記式(1)で表される化合物の含有率が0.18質量%を超えるインク用エマルション組成物。
[式(1)中、tは1乃至5を表す。]
2)
上記成分(A)が、分散染料、油溶性染料、及び建染染料から選ばれる少なくとも1種類の染料である上記1)に記載のインク用エマルション組成物。
3)
上記成分(A)が、C.I.ディスパースイエロー54、C.I.ディスパースオレンジ25、C.I.ディスパースレッド60、C.I.ディスパースブルー72、359、360、C.I.ディスパースブラウン26、27及びC.I.ソルベントオレンジ60から選ばれる少なくとも1種類の染料である上記1)又は2)に記載のインク用エマルション組成物。
4)
上記成分(B)の重量平均分子量が、1000以上20000以下である上記1)乃至3)のいずれか一項に記載のインク用エマルション組成物。
5)
上記成分(B)のガラス転移点が、45℃以上135℃以下である上記1)乃至4)のいずれか一項に記載のインク用エマルション組成物。
6)
上記成分(B)が、下記式(2)又は(3)の骨格を分子内に有するスチレン-アクリル共重合体である上記1)乃至5)のいずれか一項に記載のインク用エマルション組成物。
[式(2)において、n1乃至n3は1~30の整数を表す。]
[式(3)において、m1及びm2は1~43の整数を表す。]
7)
上記成分(C)において、tが2である上記1)乃至6)のいずれか一項に記載のインク用エマルション組成物。
8)
さらに(D)分子内にアミノ基とスルホ基の両置換基を有する化合物を含有する上記1)乃至7)のいずれか一項に記載のインク用エマルション組成物。
9)
上記成分(D)が下記式(4)で表される化合物である上記8)に記載のインク用エマルション組成物。
[式(4)中、Rは、置換基を有しても良いアルキレン基、アルキリデン基、アリーレン基を表す。]
10)
さらに(E)水溶性有機溶剤を含有する上記1)乃至9)のいずれか一項に記載のインク用エマルション組成物。
11)
上記成分(E)が、分子内にヒドロキシ基を1以上有する水溶性有機溶剤である上記10)に記載のインク用エマルション組成物。
12)
上記成分(A)の数平均粒子径が10~500nmである上記1)乃至11)のいずれか一項に記載のインク用エマルション組成物。
13)
アルカリ性水溶液を用いて中和溶解させる工程を有する上記1)乃至12)のいずれか一項に記載のインク用エマルション組成物の製造方法。
14)
上記1)乃至12)のいずれか一項に記載のインク用エマルション組成物、及び(F)消泡剤を含有するインク用分散液組成物。
15)
上記成分(F)がノニオン界面活性剤である上記14)に記載のインク用分散液組成物。
16)
さらに(G)防腐剤を含有する上記14)又は15)に記載のインク用分散液組成物。
17)
上記1)乃至12)のいずれか一項に記載のインク用エマルション組成物、又は上記14)乃至16)のいずれか一項に記載のインク用分散液組成物を含有する水性インク。
18)
さらに(H)下記式(5)で表される化合物を含有する上記17)に記載の水性インク。
[式(5)中、sは1乃至5を表す。]
本発明における成分(A)は、染料及び/又は顔料である。
上記染料とは、適当な染色法によって繊維に染着する有機色素であり、例えば、直接染料、建染染料、硫化染料、分散染料、塩基性染料、ナフトール染料、酸性染料、酸性媒染染料、媒染染料、油溶性染料、反応染料、可溶性建染染料、硫化建染染料、酸化染料等である。
具体的には、C.I.Disperse Yellowとしては、3、4、5、7、8、9、13、23、24、30、33、34、39、42、44、49、50、51、54、56、58、60、63、64、66、68、71、74、76、79、82、83、85、86、88、90、91、93、98、99、100、104、114、116、118、119、122、124、126、135、140、141、149、160、162、163、164、165、179、180、182、183、186、192、198、199、200、202、204、210、211、215、216、218、224、237等が挙げられる。同様に、C.I.Disperse Orangeとしては、1、1:1、3、5、7、11、13、17、20、21、23、24、25、25:1、29、30、31、32、33、37、38、42、43、44、45、47、48、49、50、53、54、55、56、57、58、59、61、66、71、73、76、78、80、86、89、90、91、93、96、97、118、119、127、130、139、142等が挙げられる。同様に、C.I.Disperse Redとしては、1、4、5、7、11、12、13、15、17、27、43、44、50、52、53、54、55、55:1、56、58、59、60、65、70、72、73、74、75、76、78、81、82、86、88、90、91、92、93、96、103、105、106、107、108、110、111、113、117、118、121、122、126、127、128、131、132、134、135、137、143、145、146、151、152、153、154、157、158、159、164、167、169、177、179、181、183、184、185、188、189、190、191、192、200、201、202、203、205、206、207、210、221、224、225、227、229、239、240、257、258、277、278、279、281、283、288、298、302、303、310、311、312、320、323、324、328、359、362、364等が挙げられる。更には、C.I.ディスパースバイオレット1、4、8、11、17、23、26、27、28、29、31、33、35、36、38、40、43、46、48、49、50、51、52、56、57、59、61、63、69、77,97、C.I.ディスパースグリーン9、C.I.ディスパースブラウン1、2、4、9、13、19、26、27、C.I.ディスパースブルー3、5、7、9、14、16、19、20、26、26:1、27、35、43、44、54、55、56、58、60、62、64、64:1、71、72、72:1、73、75、77、79、79:1、81、82、83、87、91、93、94、95、64:1、96、102、106、108、112、113、115、118、120、122、125、128、130、131、139、141、142、143、145、146、148、149、153、154、158、165、165:1、165:2、167、171、173、174、176、181、183、185、186、187、189、197、198、200、201、205、207、211、214、224、225、257、259、266、267、270、281、284、285、287、288、291、293、295、297、301、315、330、333、334、339、341、353、354、358、359、360、364、365、366、368、C.I.ディスパースブラック1、3、10、24、C.I.Solvent Yellow 114、C.I.Solvent Orange 60、67、C.I.Solvent Red 146、C.I.ソルベントブルー36、63、83、105、111、等を挙げることができるが、これらに限定されるものではない。
具体的には、C.I.ピグメントイエロー74、120、128、138、151、185、217、C.I.ピグメントオレンジ13、16、34、43、C.I.ピグメントレッド122、146、148、C.I.ピグメントバイオレット19、23、C.I.ピグメントブルー15、15:1、15:2、15:3、15:4、15:5、15:6、C.I.ピグメントグリーン7、8等を挙げることができる。
本発明における成分(B)スチレン-(メタ)アクリル共重合体は、スチレン系モノマーと(メタ)アクリル系モノマーの共重合体である。なお、本明細書において、「(メタ)アクリル」とは、「アクリル」及び/又は「メタクリル」の意味を表す。
これらの共重合体の具体例としては、(α‐メチル)スチレン‐アクリル酸共重合体、(α‐メチル)スチレン‐アクリル酸‐アクリル酸エステル共重合体、(α‐メチル)スチレン‐メタクリル酸共重合体、(α‐メチル)スチレン‐メタクリル酸‐アクリル酸エステル共重合体、(α‐メチル)スチレン‐(無水)マレイン酸共重合体、アクリル酸エステル‐(無水)マレイン酸共重合体、(α‐メチル)スチレン‐アクリル酸エステル‐(無水)マレイン酸共重合体、アクリル酸エステル‐アリルスルホン酸エステル共重合体、アクリル酸エステル‐スチレンスルホン酸共重合体、(α‐メチル)スチレン‐メタクリルスルホン酸共重合体、ポリエステル‐アクリル酸共重合体、ポリエステル‐アクリル酸‐アクリル酸エステル共重合体、ポリエステル‐メタクリル酸共重合体、ポリエステル‐メタクリル酸‐アクリル酸共重合体エステル;等が挙げられる。これらの中では芳香族炭化水素基を含む化合物がスチレンのものが好ましい。
なお、(α‐メチル)スチレンとは、本明細書においてα‐メチルスチレン、及びスチレンを含む意味として用いる。
また、成分(B)として用いられるスチレン-(メタ)アクリル共重合体のガラス転移温度は45℃~135℃である場合が好ましく、55℃~120℃がさらに好ましく、60~110℃が特に好ましい。
さらに、成分(B)として用いられるスチレン-(メタ)アクリル共重合体の酸価は50~250mgKOH/gである場合が好ましく、100~250mgKOH/gがさらに好ましく、150~250mgKOH/gである場合が特に好ましい。酸価が小さくなりすぎると、水に対する樹脂の溶解性が悪くなり、また昇華性染料に対する分散安定化力が劣る傾向にあり、酸価が大きくなりすぎると、水性媒体との親和性が強くなり、印字後の画像ににじみが発生し易い傾向があり好ましくない。樹脂の酸価は、樹脂1gを中和するのに要するKOHのmg数を表し、JIS-K3054に従って測定する。
スチレン-アクリル共重合体を水溶性有機溶剤に投入し、温度を90-120℃に昇温してスチレン-アクリル共重合体溶解液を作製する。そこへ中和剤及び水を投入して、温度を下げて乳化(エマルション又はマイクロエマルション)液とし、そうして作製されたエマルション液と染料及び/又は顔料を混合・分散することで、当該染料及び/又は顔料を含むスチレン-アクリル共重合体エマルション組成物を製造することができる。
ここで、水溶性有機溶剤としては、例えば、グリセリン(沸点:290℃)、エチレングリコール、プロピレングリコール(沸点:188℃)、ジプロピレングリコール(沸点:230℃)、ブチルカルビトール(沸点:231℃)、メチルトリグリコール、トリエチレングリコール、ブチルトリグリコール、ブチルカルビトールアセテート(沸点:247℃)、ジエチレングリコール、1,5ペンタジオール、1,6ヘキサンジオール、1,2-ヘキサンジオール、メチルジグリコール、トリプロピレングリコール、メタノール(沸点:64℃)、エタノール(沸点:78℃)、1-プロパノール(沸点:97℃)、2-プロパノール(沸点:82℃)、1,2-メトキシエタン(沸点:93℃)、テトラヒドロフラン(沸点:66℃)、p-ジオキサン(沸点:101℃)等が挙げられる。これらの水溶性有機溶剤は1種類を使用しても良く、また複数組み合わせることも出来る。
中和剤としては、例えばアルカリ金属の水酸化物、アルカリ土類金属の水酸化物、脂肪族アミン化合物及びアルコールアミン化合物などが挙げられる。
本発明のインク用エマルション組成物が含有する上記式(1)で表される化合物はプロピレングリコール系の化合物である。式(1)中、tは1~5の整数を表し、好ましくは1~3の整数、更に好ましくは1又は2である。具体的には、プロピレングリコール、ジプロピレングリコールが挙げられる。
また、本発明のインク用エマルション組成物において、成分(C)の含有率は、1~60質量%の範囲が好ましく、10~30質量%の範囲が更に好ましい。インク用エマルション組成物中の成分(C)の含有率が上記範囲内の場合、O/W型のエマルション組成を保つことが出来るため、コア-シェル型の色素分散液が作製可能となり、結果として、安定性向上に寄与する。
本発明の成分(D)は、分子内にアミノ基とスルホ基の両置換基を有する化合物である。この化合物は、上記成分(B)のカルボキシ基とイオン的に結合し、末端スルホ基を有するように振る舞い、これによって安定性が向上しているものと考えられる。
成分(D)としては、上記式(4)で表される化合物が好ましい。上記式(4)におけるRは、置換基を有しても良いアルキレン基、置換基を有しても良いアルキリデン基、置換基を有しても良いアリーレン基を表す。
置換基を有しても良いアルキレン基とは、飽和又は不飽和であり、鎖状又は環状の(好ましくはC1-C20)アルキレン基であり、複素原子を有しても良い。例えば、メチレン基、エチレン基、プロピレン基、ブチレン基、シクロペンチレン基、シクロへキシレン基、ノルボルニレン基、アダマンチレン基等を挙げることができ、好ましくは(C1-C10)アルキレン基であり、更に好ましくは(C1-C5)アルキレン基であり、特に好ましくは、メチレン基、エチレン基、プロピレン基である。また、有しても良い置換基としては、例えばハロゲン原子;シアノ基;ヒドロキシ基;カルボキシ基;スルホ基;スルファモイル基;(C1-C4)アルコキシ基;ヒドロキシ基、(C1-C4)アルコキシ基、スルホ基、及びカルボキシ基よりなる群から選択される少なくとも1種類の基で置換された(C1-C4)アルコキシ基;N-アルキルアミノスルホニル基;N-フェニルアミノスルホニル基;ホスホ基;ニトロ基;アシル基;ウレイド基;アシルアミノ基、(C1-C4)アルコキシ基、スルホ基及びカルボキシ基よりなる群から選択される少なくとも1種類の基で置換されたアシルアミノ基等で置換された(C1-C6)アルキル基等が挙げられる。
置換基を有しても良いアルキリデン基とは、飽和又は不飽和であり、鎖状又は環状の(好ましくはC1-C20)アルキリデン基であり、複素原子を有しても良い。例えば、エチリデン基、プロピリデン基、ブチリデン基、シクロペンチリデン基、シクロへキシリデン基、ノルボルニリデン基、アダマンチリデン基等を挙げることができ、好ましくは(C1-C10)アルキリデン基であり、更に好ましくは(C1-C5)アルキリデン基であり、特に好ましくは、エチリデン基、プロピリデン基である。なお、有しても良い置換基は、上記アルキレン基と同じである。
置換基を有しても良いアリーレン基とは、(好ましくはC1-C20)アリーレン基であり、複素原子を有しても良い。例えば、フェニレン基、チエニレン基、ピロリレン基等を表すが、例えばナフチレン基、アントラニレン基、フェナントリレン基、キノリレン基の様に2以上の環構造が縮環していても良い。なお、有しても良い置換基は、上記アルキレン基と同じである。
また、R中にはエステル構造(-COO-)、エーテル構造(-O-)、ケト構造(-(C=O)-)を有してもよい。
上記式(4)で表される化合物として、具体的には、タウリン、4-アミノ-1-ナフタレンスルホン酸、ヒドロキシルアミノスルホン酸、5-アミノ-1-ナフタレンスルホン酸、ヒドロキシルアミノスルホン酸、6-アミノ-1-ナフタレンスルホン酸、ヒドロキシルアミノスルホン酸、3-アミノ-2,7-ナフタレンジスルホン酸、2-アミノ-1,4-ベンゼンスルホン酸、4-アミノベンゼンスルホン酸等が挙げられる。
本発明のインク用エマルション組成物は、さらに(E)水溶性有機溶剤を含有しても良い。水溶性有機溶剤の具体例としては、例えば、メタノール、エタノール、プロパノール、イソプロパノール、ブタノール、イソブタノール、第二ブタノール、第三ブタノール等の(C1~C4)アルコール;N,N-ジメチルホルムアミド、N,N-ジメチルアセトアミド等のカルボン酸アミド;2-ピロリドン、ヒドロキシエチル-2-ピロリドン、N-メチル-2-ピロリドン、N-メチルピロリジン-2-オン等のラクタム;1,3-ジメチルイミダゾリジン-2-オン、1,3-ジメチルヘキサヒドロピリミド-2-オン等の環式尿素類;アセトン、メチルエチルケトン、2-メチル-2-ヒドロキシペンタン-4-オン等のケトン又はケトアルコール;テトラヒドロフラン、ジオキサン等の環状エーテル;エチレングリコール、1,3-プロパンジオール、1,2-ブチレングリコール、1,4-ブチレングリコール、1,6-ヘキシレングリコール、ジエチレングリコール、トリエチレングリコール、テトラエチレングリコール、ポリエチレングリコール、ポリプロピレングリコール(式(1)で表わされ、tが5以下のものを除く)、チオジグリコール、ジチオジグリコール等のC2-C6アルキレン単位を有するモノ、オリゴ、若しくはポリアルキレングリコール又はチオグリコール;トリメチロールプロパン、グリセリン、ヘキサン-1,2,6-トリオール等のポリオール(好ましくはトリオール);エチレングリコールモノメチルエーテル、エチレングリコールモノエチルエーテル、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、ジエチレングリコールモノブチルエーテル(ブチルカルビトール)、トリエチレングリコールモノメチルエーテル、トリエチレングリコールモノエチルエーテル等の多価アルコールの(C1~C4)アルキルエーテル;γ-ブチロラクトン;ジメチルスルホキシド;等が挙げられる。これらの有機溶剤は単独で用いてもよいし、二種以上を併用してもよい。
ここで、「成分(E)水溶性有機溶剤」は、「成分(C)式(1)で表される化合物」以外の水溶性有機溶剤を指す。
なお、上記の水溶性有機溶剤にはトリメチロールプロパン等のように、常温で固体の物質も含まれているが、これらは固体であっても水溶性を示し、水に溶解させた場合には水溶性有機溶剤と同じ目的で使用することができるため、便宜上、本明細書においては水溶性有機溶剤の範疇に記載する。
成分(E)は、分子内にヒドロキシ基を1以上有する水溶性有機溶剤である場合が好ましい。
本発明のインク用エマルション組成物において、成分(E)の含有率は、1~60質量%の範囲が好ましく、10~30質量%の範囲が更に好ましい。インク用エマルション組成物中の成分(E)の含有率が上記範囲内の場合、O/W型のエマルション組成を保つことが出来るため、コア-シェル型の色素分散液が作製可能となり、結果として、安定性向上に寄与する。
上記インク用エマルション組成物に、さらに(F)消泡剤を加えたインク用分散液組成物とすることもできる。
消泡剤は、溶液の泡を消したり、あるいは起泡を抑制する作用をもつ物質であり、例えば揮発性が小さく拡散力の大きい油状物質(高級アルコール等)やノニオン界面活性剤が挙げられる。
ノニオン界面活性剤としては、ポリオキシエチレンノニルフェニルエーテル、ポリオキシエチレンオクチルフェニルエーテル、ポリオキシエチレンドデシルフェニルエーテル、ポリオキシエチレンオレイルエーテル、ポリオキシエチレンラウリルエーテル、ポリオキシエチレンアルキルエーテル等のエーテル系;ポリオキシエチレンオレイン酸エステル、ポリオキシエチレンジステアリン酸エステル、ソルビタンラウレート、ソルビタンモノステアレート、ソルビタンモノオレエート、ソルビタンセスキオレエート、ポリオキシエチレンモノオレエート、ポリオキシエチレンステアレート等のエステル系;2,4,7,9-テトラメチル-5-デシン-4,7-ジオール、3,6-ジメチル-4-オクチン-3,6-ジオール、3,5-ジメチル-1-ヘキシン-3-オール等のアセチレングリコール(アルコール)系;日信化学社製、商品名サーフィノール104、105、82、465、オルフィンSTG等;ポリグリコールエーテル系(例えばSIGMA-ALDRICH社製のTergitol 15-S-7等);等が挙げられる。
このうち好ましくは、アセチレングリコール系消泡剤であり、更に好ましくは、日信化学社製、商品名サーフィノール104、105、82、465である。
本発明のインク用分散液組成物において、成分(F)の含有率は、0.01~0.5質量%の範囲が好ましく、0.05~0.3質量%の範囲が更に好ましい。インク用分散液組成物中の成分(F)の含有率が上記範囲内の場合、分散化工程時に発生する泡の消泡効果がある為、分散化が効率的に進み、かつ分散安定性へ悪影響を及ぼさない。
上記インク用エマルション組成物に、さらに(G)防腐剤を加えたインク用分散液組成物とすることもできる。
防腐剤の例としては、例えば有機硫黄系、有機窒素硫黄系、有機ハロゲン系、ハロアリールスルホン系、ヨードプロパギル系、ハロアルキルチオ系、ニトリル系、ピリジン系、8-オキシキノリン系、ベンゾチアゾール系、イソチアゾリン系、ジチオール系、ピリジンオキシド系、ニトロプロパン系、有機スズ系、フェノール系、第4アンモニウム塩系、トリアジン系、チアジン系、アニリド系、アダマンタン系、ジチオカーバメイト系、ブロム化インダノン系、ベンジルブロムアセテート系又は無機塩系等の化合物が挙げられる。有機ハロゲン系化合物の具体例としては、例えばペンタクロロフェノールナトリウムが挙げられ、ピリジンオキシド系化合物の具体例としては、例えば2-ピリジンチオール-1-オキサイドナトリウムが挙げられ、イソチアゾリン系化合物としては、例えば1,2-ベンズイソチアゾリン-3-オン、2-n-オクチル-4-イソチアゾリン-3-オン、5-クロロ-2-メチル-4-イソチアゾリン-3-オン、5-クロロ-2-メチル-4-イソチアゾリン-3-オンマグネシウムクロライド、5-クロロ-2-メチル-4-イソチアゾリン-3-オンカルシウムクロライド、2-メチル-4-イソチアゾリン-3-オンカルシウムクロライド等が挙げられる。その他の防腐剤の具体例として、無水酢酸ナトリウム、ソルビン酸ナトリウム又は安息香酸ナトリウム、アーチケミカル社製、商品名プロクセルRTMGXL(S)やプロクセルRTMXL-2(S)等が挙げられる。
本発明のインク用分散液組成物において、成分(G)の含有率は、0.01~0.5質量%の範囲が好ましく、0.1~0.3質量%の範囲が更に好ましい。インク用分散液組成物中の成分(G)の含有率が上記範囲内の場合、防菌作用があり、増粘などを抑えることが出来る。
本発明のインク用エマルション組成物は、成分(A)乃至(G)以外に、防黴剤、pH調整剤、キレート試薬、防錆剤、水溶性紫外線吸収剤、水溶性高分子化合物、色素溶解剤、酸化防止剤、界面活性剤等を含有しても良い。
防黴剤としては、デヒドロ酢酸ナトリウム、安息香酸ナトリウム、ナトリウムピリジンチオン-1-オキシド、p-ヒドロキシ安息香酸エチルエステル、1,2-ベンズイソチアゾリン-3-オン及びその塩等が挙げられる。防黴剤を用いる場合は、エマルション組成物中に0.02~1.00質量%使用するのが好ましい。
pH調整剤としては、調製されるインクに悪影響を及ぼさずに、インクのpHをおおよそ5~11の範囲に制御できるものであれば任意の物質を使用することができる。その具体例としては、例えば、ジエタノールアミン、トリエタノールアミン、N-メチルジエタノールアミン等のアルカノールアミン;水酸化リチウム、水酸化ナトリウム、水酸化カリウム等のアルカリ金属の水酸化物;水酸化アンモニウム(アンモニア水);、炭酸リチウム、炭酸ナトリウム、炭酸水素ナトリウム、炭酸カリウム等のアルカリ金属の炭酸塩;酢酸カリウム等の有機酸のアルカリ金属塩;ケイ酸ナトリウム、リン酸二ナトリウム等の無機塩基等が挙げられる。
キレート試薬の具体例としては、例えば、エチレンジアミン四酢酸ナトリウム、ニトリロ三酢酸ナトリウム、ヒドロキシエチルエチレンジアミン三酢酸ナトリウム、ジエチレントリアミン五酢酸ナトリウム、ウラシル二酢酸ナトリウム等が挙げられる。
防錆剤としては、例えば、酸性亜硫酸塩、チオ硫酸ナトリウム、チオグルコール酸アンモニウム、ジイソプロピルアンモニウムナイトライト、四硝酸ペンタエリスリトール又はジシクロヘキシルアンモニウムナイトライト等が挙げられる。
水溶性紫外線吸収剤としては、例えば、スルホン化したベンゾフェノン系化合物、ベンゾトリアゾ-ル系化合物、サリチル酸系化合物、桂皮酸系化合物、トリアジン系化合物が挙げられる。
水溶性高分子化合物としては、ポリビニルアルコール、セルロース誘導体、ポリアミン又はポリイミン等が挙げられる。
酸化防止剤としては、例えば、各種の有機系及び金属錯体系の褪色防止剤を使用することができる。前記有機系の褪色防止剤の例としては、ハイドロキノン類、アルコキシフェノール類、ジアルコキシフェノール類、フェノール類、アニリン類、アミン類、インダン類、クロマン類、アルコキシアニリン類、複素環類等が挙げられる。
界面活性剤としては、アニオン系、カチオン系、ノニオン系、シリコーン系界面活性剤、フッ素系界面活性剤等の公知の界面活性剤が挙げられる。
アニオン界面活性剤としては、アルキルスルホン酸塩、アルキルカルボン酸塩、α-オレフィンスルホン酸塩、ポリオキシエチレンアルキルエーテル酢酸塩、N-アシルアミノ酸及びその塩、N-アシルメチルタウリン塩、アルキル硫酸塩ポリオキシアルキルエーテル硫酸塩、アルキル硫酸塩ポリオキシエチレンアルキルエーテル燐酸塩、ロジン酸石鹸、ヒマシ油硫酸エステル塩、ラウリルアルコール硫酸エステル塩、アルキルフェノール型燐酸エステル、アルキル型燐酸エステル、アルキルアリールスルホン酸塩、ジエチルスルホ琥珀酸塩、ジエチルヘキルシルスルホ琥珀酸塩、ジオクチルスルホ琥珀酸塩等が挙げられる。
本発明においては、アニオン系界面活性剤を含有する場合が特に好ましい。その中でも、特にスルホ琥珀酸が好ましく、具体的にはジエチルスルホ琥珀酸塩、ジエチルヘキルシルスルホ琥珀酸塩、ジオクチルスルホ琥珀酸塩等である。
上記のインク調製剤は、それぞれ単独又は混合して用いられる。
水性インクとする場合上記染料及び/又は顔料が、水性インク中へ色材純分として0.3~10質量量%の範囲で含有するのが好ましい。
また、上記防腐剤、防黴剤、pH調整剤、キレート試薬、防錆剤、水溶性紫外線吸収剤、水溶性高分子化合物、色素溶解剤、酸化防止剤、界面活性剤等を添加して水性インク化しても良い。
本発明の水性インクは、更に(H)上記式(5)で表される化合物を含有してもよい。
上記式(5)中、sは平均重合度であり、1~5を表す。この平均重合度は、小数点以下1桁目を四捨五入した数値で記載する。式(5)で表される化合物の具体例としては、グリセリン、ジグリセリン、トリグリセリン、テトラグリセリン、ペンタグリセリン、ヘキサグリセリン、ヘプタグリセリン等の化合物、及びこれらの混合物が挙げられる。ヘキサグリセリン及びヘプタグリセリンの重合度は、それぞれ6及び7であるが、これらを単独で使用せず、より小さい重合度のものとの混合物として使用するとき、その混合物の平均重合度が上記の範囲であれば、本発明の水性インクに該混合物を含有しても良い。また、例えばグリセリンが50%、トリグリセリンが50%の混合物であれば、平均重合度sは2となるが、グリセリンの含有量が大きいと、昇華転写時に煙等が発生し、転写染色における作業環境の視野悪化等の問題が生じる。このため、式(5)で表される化合物中の、グリセリンの含有量は、ガスクロマトグラフ法基準(ピークの面積比)で通常10%以下、好ましくは8%以下であり、下限は分析機器の検出限界以下、すなわち0%で良い。
式(5)で表される化合物の市販品としては、例えば、いずれも阪本薬品工業株式会社製、商品名グリセリン(平均重合度s=1)、商品名ジグリセリンS(平均重合度s=2)、商品名ポリグリセリン#310(s=4)等が挙げられる。
本発明の水性インクにおいて、成分(H)の含有率は、5~60質量%の範囲が好ましく、10~40質量%の範囲が更に好ましい。水性インク中の成分(H)の含有率が上記範囲内の場合、インクの保存安定性に優れ、昇華転写時での煙発生が少ない。
48%水酸化ナトリウム(3.7部)、イオン交換水(96.3部)、プロピレングリコール(60部)へJoncryl 683(BASF社製、式(2)の骨格を分子内に有するスチレン-(メタ)アクリル共重合体、重量平均分子量=8,000、ガラス転移点=75℃、酸価=160mgKOH/g)40部を投入し、90―120℃に昇温して5時間撹拌することにより、Joncryl 683のエマルション液1を得た。
48%水酸化ナトリウム(4.1部)、イオン交換水(95.9部)、プロピレングリコール(60部)へJoncryl 690(BASF社製、式(3)の骨格を分子内に有するスチレン-(メタ)アクリル共重合体、重量平均分子量=16,500、ガラス転移点=102℃、酸価=240mgKOH/g)40部を投入し、90―120℃に昇温して5時間撹拌することにより、Joncryl 690のエマルション液2を得た。
Joncryl 690(BASF社製、式(3)の骨格を分子内に有するスチレン-(メタ)アクリル共重合体、重量平均分子量=16,500、ガラス転移点=102℃、酸価=240mgKOH/g)40部をプロピレングリコール(60部)へ投入し、90―120℃に昇温して5時間撹拌することにより、Joncryl 690の40%溶解液を得た。その後70―90℃に温度を下げて、そこへ48%水酸化ナトリウム(4.1部)を投入し、1時間撹拌後イオン交換水(180部)、サーフィノール104(日信化学工業株式会社製)0.1部を投入し、70―95℃に保って1時間撹拌することにより、Joncryl 690のエマルション液(A)を得た。
得られたエマルション液(A)を0.2mm径ガラスビーズを用いてサンドミルにて、冷却下、約15時間分散化処理を行った。分散処理後、ガラス繊維濾紙GC-50(東洋濾紙株式会社製、フィルターの孔径0.5μm)で濾過し、粒子サイズの大きい成分を除去したJoncryl 690のエマルション液3を得た。
48%水酸化ナトリウム(3.1部)、イオン交換水(96.9部)、プロピレングリコール(60部)へJoncryl 678(BASF社製、式(2)の骨格を分子内に有するスチレン-(メタ)アクリル共重合体、重量平均分子量=8,500、ガラス転移点=85℃、酸価=215mgKOH/g)40部を投入し、90―120℃に昇温して5時間撹拌することにより、Joncryl 678のエマルション液4を得た。
48%水酸化カリウム(4.3部)、イオン交換水(95.7部)、プロピレングリコール(60部)へJoncryl 678(BASF社製、式(2)の骨格を分子内に有するスチレン-(メタ)アクリル共重合体、重量平均分子量=8,500、ガラス転移点=85℃、酸価=215mgKOH/g)40部を投入し、90―120℃に昇温して5時間撹拌することにより、Joncryl 678のエマルション液5を得た。
48%水酸化リチウム(1.9部)、イオン交換水(98.1部)、プロピレングリコール(60部)へJoncryl 678(BASF社製、式(2)の骨格を分子内に有するスチレン-(メタ)アクリル共重合体、重量平均分子量=8,500、ガラス転移点=85℃、酸価=215mgKOH/g)40部を投入し、90―120℃に昇温して5時間撹拌することにより、Joncryl 678のエマルション液6を得た。
Joncryl 690(BASF社製、式(3)の骨格を分子内に有するスチレン-(メタ)アクリル共重合体、重量平均分子量=16,500、ガラス転移点=102℃、酸価=240mgKOH/g)40部、48%水酸化ナトリウム(6.8部)、イオン交換水(153.0部)、プロクセルGXL(アーチケミカル社製)0.1部、サーフィノール104(日信化学工業株式会社製)0.1部を混合し、70―95℃に昇温して10時間撹拌することにより、Joncryl 690の20%水溶液1を得た。
下記表1乃至6に記載の各成分の混合物に0.2mm径ガラスビーズを加え、サンドミルにて水冷下、約15時間分散処理を行った。得られた液にイオン交換水を加え、液の総質量中における染料の含有量が15%となるように調製した。得られた液をガラス繊維ろ紙GC-50(ADVANTEC社製)で濾過し、実施例、比較例のインク用分散液組成物を得た。
なお、表中の数字は「部数」であり、略号は、以下の通りである。
Or25: C.I.ディスパースオレンジ25
R60: C.I.ディスパースレッド60
B360: C.I.ディスパースブルー360
B359: C.I.ディスパースブルー359
Y54: C.I.ディスパースイエロー54
B77: C.I.ディスパースブルー77
10%SF104PG: サーフィノール104をプロピレングリコールで10%濃度に希釈したもの
サーフィノール104: アセチレングリコール界面活性剤(エアープロダクツジャパン(株)社製)、消泡剤
プロクセルGXL: 防腐剤(ロンザ社製)
実施例1~26、比較例1~6について、以下試験を行い表7乃至12にまとめた。
[粒径変化試験・沈降性の確認]
初期及び60℃で1週間保存した各インク用分散液組成物中の着色剤(成分(A))のメディアン径(D50、数平均粒子径)をMICRO TRAC UPA EX150(マイクロトラックベル株式会社製)を用いて測定した。
○:沈降が確認されない
△:沈降が僅かに確認される
×:沈降が相当程度確認される
以上より、本発明の実施例のインクはいずれも分散安定性に優れている事がわかった。一方、比較例はいずれも分散安定性に劣っていた。
上記の実施例、比較例で調製したインク用分散液組成物に、更に表13~14に記載の成分を混合して、インク組成物を得た。
なお、表中の数字は「部数」であり、略号は、以下の通りである。
ジグリセリンS: 式(5)で表され、sが2である化合物、阪本薬品工業株式会社製、グリセリン含有量0.5%
サーフィノール420: 界面活性剤、日信化学工業株式会社製
実施例27~33、比較例7~10について、上記の方法で、沈降性を評価し、表15~16にまとめた。
以上より、本発明の実施例のインクはいずれも分散安定性に優れている事がわかった。一方、比較例はいずれも分散安定性に劣っていた。
48%水酸化ナトリウム(3.1部)、イオン交換水(96.9部)、ジプロピレングリコール(式(1)で表され、tが2の化合物)(60部)へJoncryl 678(BASF社製、式(2)の骨格を分子内に有するスチレン-(メタ)アクリル共重合体、重量平均分子量=8,500、ガラス転移点=85℃、酸価=215mgKOH/g)40部を投入し、90―120℃に昇温して5時間撹拌することにより、Joncryl 678のエマルション液7を得た。
下記表17に記載の各成分の混合物に0.2mm径ガラスビーズを加え、サンドミルにて水冷下、約15時間分散処理を行った。得られた液にイオン交換水を加え、液の総質量中における染料の含有量が15%となるように調製した。得られた液をガラス繊維ろ紙GC-50(ADVANTEC社製)で濾過し、実施例のインク用分散液組成物を得た。
なお、表中の数字は「部数」である。
R60: C.I.ディスパースレッド60
10%SF104PG: サーフィノール104をプロピレングリコールで10%濃度に希釈したもの
サーフィノール104: アセチレングリコール界面活性剤(エアープロダクツジャパン(株)社製)、消泡剤
プロクセルGXL: 防腐剤(ロンザ社製)
Claims (18)
- 前記成分(A)が、分散染料、油溶性染料、及び建染染料から選ばれる少なくとも1種類の染料である請求項1に記載のインク用エマルション組成物。
- 前記成分(A)が、C.I.ディスパースイエロー54、C.I.ディスパースオレンジ25、C.I.ディスパースレッド60、C.I.ディスパースブルー72、359、360、C.I.ディスパースブラウン26、27及びC.I.ソルベントオレンジ60から選ばれる少なくとも1種類の染料である請求項1又は2に記載のインク用エマルション組成物。
- 前記成分(B)の重量平均分子量が、1000以上20000以下である請求項1乃至3のいずれか一項に記載のインク用エマルション組成物。
- 前記成分(B)のガラス転移点が、45℃以上135℃以下である請求項1乃至4のいずれか一項に記載のインク用エマルション組成物。
- 前記成分(C)において、tが2である請求項1乃至6のいずれか一項に記載のインク用エマルション組成物。
- さらに(D)分子内にアミノ基とスルホ基の両置換基を有する化合物を含有する請求項1乃至7のいずれか一項に記載のインク用エマルション組成物。
- さらに(E)水溶性有機溶剤を含有する請求項1乃至9のいずれか一項に記載のインク用エマルション組成物。
- 前記成分(E)が、分子内にヒドロキシ基を1以上有する水溶性有機溶剤である請求項10に記載のインク用エマルション組成物。
- 前記成分(A)の数平均粒子径が10~500nmである請求項1乃至11のいずれか一項に記載のインク用エマルション組成物。
- アルカリ性水溶液を用いて中和溶解させる工程を有する請求項1乃至12のいずれか一項に記載のインク用エマルション組成物の製造方法。
- 請求項1乃至12のいずれか一項に記載のインク用エマルション組成物、及び(F)消泡剤を含有するインク用分散液組成物。
- 前記成分(F)がノニオン界面活性剤である請求項14に記載のインク用分散液組成物。
- さらに(G)防腐剤を含有する請求項14又は15に記載のインク用分散液組成物。
- 請求項1乃至12のいずれか一項に記載のインク用エマルション組成物、又は請求項14乃至16のいずれか一項に記載のインク用分散液組成物を含有する水性インク。
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