Pleochroism powder and pleochroism printed article
First Claim
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1. A pleochroism powder which comprises a flaky mica having a coating which consists of two layers:
- wherein one of said two layers is a first layer comprising a metal oxide of titanium coated on said flaky mica and the other is a second layer comprising metal oxides of cobalt and aluminum coated on said first layer.
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Abstract
A multi color changing powder with a bluish base appearance color of which color tone varies according to the observation direction is provided. A pleochroism powder of the present invention comprises a flaky mica having a coating which consists of two layers wherein one of said two layers is a first layer comprising a metal oxide of titanium coated on said flaky mica and the other is a second layer comprising metal oxides of cobalt and aluminum coated on said first layer.
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Citations
20 Claims
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1. A pleochroism powder which comprises a flaky mica having a coating which consists of two layers:
wherein one of said two layers is a first layer comprising a metal oxide of titanium coated on said flaky mica and the other is a second layer comprising metal oxides of cobalt and aluminum coated on said first layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 16, 17, 18)
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11. A pleochroism powder comprising a mixture of:
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a titanium dioxide coated flaky mica which generates a reflected interference color; and
a pigment or a dye having a color which is substantially complementary color to said reflected interference color. - View Dependent Claims (12, 13, 14, 19)
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20. A pleochroism printed article comprising a base material, a layer of a first composition coated on the surface of said base material, and a layer of a second composition coated on the surface of said layer of the first composition, said first composition comprising titanium dioxide coated mica which generates a reflected interference color and said second composition comprising a pigment or a dye having substantially complementary color to reflected interference color of said titanium dioxide coated mica, and wherein different colors of said pleochroism printed article are observed by changing the observation angle of incident light.
Specification