Gold pigment with high color strength
AssigneeCqv Co., Ltd.
InventorsKil-Wan Chang, Kwang-Soo Lim, Byung-Ki Choi, Jin-Hyoung Lee
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Abstract
A gold pigment is disclosed. The gold pigment according to the present disclosure includes a substrate; a first coating layer formed on a surface of the substrate and including a metal oxide having a refractive index of more than 1.8; a second coating layer formed on the first coating layer and including an oxide containing manganese; a third coating layer formed on the second coating layer and including a colorless metal oxide having a refractive index of 1.8 or less; a fourth coating layer formed on the third coating layer and including a metal oxide having a refractive index of more than 1.8; and a fifth coating layer formed on the fourth coating layer and including Fe2O3.
Claims10
A gold pigment comprising:
- a substrate;
- a first coating layer formed on the surface of the substrate and comprising a metal oxide having a refractive index of more than 1.8;
- a second coating layer formed on the first coating layer and comprising an oxide containing manganese, wherein the oxide containing manganese is formed from MnCl2 under a condition of pH 6 to 8;
- a third coating layer formed on the second coating layer and comprising a colorless metal oxide having a refractive index of 1.8 or less;
- a fourth coating layer formed on the third coating layer and comprising a metal oxide having a refractive index of more than 1.8;
- and
- a fifth coating layer formed on the fourth coating layer and containing Fe2O3.
A gold pigment comprising a plurality of layered structure having a coating layer containing TiO2 and a coating layer containing Fe2O3, on a substrate, wherein
- the coating layer containing Fe2O3 is located on an upper side of the coating layer containing TiO2,
- a coating layer containing an oxide containing manganese is formed between the coating layer containing Fe2O3 and the coating layer containing TiO2, and
- the oxide containing manganese is from MnCl2 under a condition of pH 6 to 8.
Dependencies are inferred from the claim text.