Coloring composition, coloring method, and pigment dispersion
AssigneeSeiko Epson Corporation
InventorsMitsunobu Nakatani, Kei Hiruma, Tomoyuki Ushiyama, Kenta Tsukada
Life of this patent
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Abstract
An aqueous coloring composition contains a metal pigment, water, and organic solvents. The metal pigment is metal particles having a surface treated with at least one compound represented by formula (1) or (2), and the organic solvents include an organic solvent (A), having a water solubility of 1000 g/L or more at 20° C., and an organic solvent (B), having a water solubility of 100 g/L or less at 20° C. (R1—)P(O)(OH)2 (1) (R2—O—)aP(O)(OH)3-a (2) (In the formulae, R1 and R2 independently represent a hydrocarbon group having 12 or more carbon atoms, optionally substituted with one or more substituents, and a represents 1 or 2.)
Claims13
An aqueous coloring composition comprising:
- a metal pigment, water, and organic solvents, wherein:
- the metal pigment is metal particles having a surface treated with at least one compound represented by formula (1) or (2);
- and
- the organic solvents include an organic solvent (A), which is an organic solvent having a water solubility of 1000 g/L or more at 20° C., and an organic solvent (B), which is an organic solvent having a water solubility of 100 g/L or less at 20° C.:
- (R1—)P(O)(OH)2 (1)
- (R2—O—)aP(O)(OH)3-a (2)
- where R1 and R2 independently represent a hydrocarbon group having 12 or more carbon atoms, optionally substituted with one or more substituents, and a represents 1 or 2;
- and
- a ratio between an amount of the organic solvent (A) and an amount of the organic solvent (B), B/A, is 0.1 or more and 1.5 or less.
An aqueous coloring composition comprising:
- a metal pigment, water, and organic solvents, wherein:
- the metal pigment is metal particles having a surface treated with at least one compound represented by formula (1) or (2);
- and
- the organic solvents include an organic solvent (A), which is an organic solvent having a water solubility of 1000 g/L or more at 20° C., and an organic solvent (B), which is an organic solvent having a water solubility of 100 g/L or less at 20° C.:
- (R1—)P(O)(OH)2 (1)
- (R2—O—)aP(O)(OH)3-a (2)
- where R1 and R2 independently represent a hydrocarbon group having 12 or more carbon atoms, optionally substituted with one or more substituents, and a represents 1 or 2;
- and
- an amount of the organic solvent (A) is 5% by mass or more and 50% by mass or less of a total amount of the composition, and an amount of the organic solvent (B) is 1% by mass or more and 10% by mass or less of the total amount of the composition.
An aqueous coloring composition comprising:
- a metal pigment, water, and organic solvents, wherein:
- the metal pigment is metal particles having a surface treated with at least one compound represented by formula (1) or (2);
- and
- the organic solvents include an organic solvent (A), which is an organic solvent having a water solubility of 1000 g/L or more at 20° C., and an organic solvent (B), which is an organic solvent having a water solubility of 100 g/L or less at 20° C.:
- (R1—)P(O)(OH)2 (1)
- (R2—O—)aP(O)(OH)3-a (2)
- where R1 and R2 independently represent a hydrocarbon group having 12 or more carbon atoms, optionally substituted with one or more substituents, and a represents 1 or 2;
- and
- an amount of the surface treatment agent used is 1% by mass or more and 50% by mass or less, with a total mass of the metal particles being 100% by mass.
Dependencies are inferred from the claim text.