COLORING MATERIAL COMPOSITION

摘要

1. A colorant composition comprising at least a powder comprising a base particle coated with a multilayered film comprising layers differing from each other in refractive index to make the base particle have an interference monochromatic color, wherein every multilayered film has the thickness sufficient to have interference reflection peak or interference transmission minimum at the given reflection wave-length wherein is the powder is dispersed in a dispersion medium and has at least specific interference reflection peak outside the visible light region besides in the visible light region. 2. The colorant composition according to claim 1, wherein the base particle of the powder is a magnetic material. 3. The colorant composition according to claim 1, wherein the base particle of the powder is a dielectric material. 4. The colorant composition according to claim 1, wherein the base particle of the powder is a conductive material. 5. The colorant composition according to claim 1, wherein the base particle of the powder is made of a material which suffers neither deformation nor discoloration at a high temperature of 350 degree C to 600 degree C. 6. The colorant composition according to claim 1, wherein at least one layer of the multilayered film of the powder is a metal compound layer. 7. The colorant composition according to claim 1, wherein at least one layer of the multilayered film of the powder is a metal layer or an alloy layer. 8. The colorant composition according to claim 1, wherein the powder has at least one specific interference reflection peak outside the visible light region besides in the visible light region. 9. The colorant composition according to claim 1, wherein the dispersion medium comprises at least one resin and a solvent. 10. The colorant composition according to claim 9, wherein the resin is at least one heat-resistant resin. 11. The colorant composition according to claim 10, wherein the heat-resistant resin is at least one selected from a pure silicone resin, a fluoro resin, and a silicone-modified resin. 12. A color ink composition comprising the colorant composition according to claim 1. 13. A heat-resistant colorant composition comprising the colorant composition according to claim 1.