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US 12,298,470 B2Granted
Thin film interference pigments with a coating of nanoparticles
AssigneeViavi Solutions Inc.
InventorsAlberto Argoitia, John Edward Book, Jaroslaw Zieba
Life of this patent
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Abstract
An article including a thin film interference pigment; and a coating including a selectively absorbing nanoparticle is disclosed. The article can exhibit increased chromaticity as compared to the thin film interference pigment alone. A method of making the article is also disclosed. The method comprises providing a thin film interference pigment and coating the thin film interference pigment with a selectively absorbing nanoparticle.
Claims24
An article, comprising:
- a thin film interference pigment comprising a reflective material chosen from a metal or metal alloy, a dielectric layer, and an absorber layer;
- and
- a coating including a selectively absorbing nanoparticle on the thin film interference pigment, wherein the coating including the selectively absorbing nanoparticle is discontinuous;
- wherein the article is a coated thin film interference pigment;
- wherein the selectively absorbing nanoparticle is not a metallic nanoparticle;
- and
- wherein the selectively absorbing nanoparticle is a nanoparticle chosen from a dye, a nanoparticle consisting of a metal oxide, a metal carbide, a nanoparticle consisting of a metal sulfide, and combinations thereof.
4 more elements
A method of making an article, comprising:
- providing a thin film interference pigment comprising a reflective material chosen from a metal or metal alloy, a dielectric layer, and an absorber layer;
- and
- coating the thin film interference pigment with a coating including a selectively absorbing nanoparticle, wherein the coating including the selectively absorbing nanoparticle is discontinuous;
- wherein the article is a coated thin film interference pigment;
- wherein the selectively absorbing nanoparticle is not a metallic nanoparticle;
- and
- wherein the selectively absorbing nanoparticle is a nanoparticle chosen from a dye, a nanoparticle consisting of a metal oxide, a metal carbide, a nanoparticle consisting of a metal sulfide, and combinations thereof.
4 more elements
An article, comprising:
- a thin film interference pigment comprising a reflective material chosen from a metal or metal alloy, a dielectric layer, and an absorber layer;
- and
- a coating including a selectively absorbing nanoparticle on the thin film interference pigment, wherein the coating including the selectively absorbing nanoparticle is discontinuous;
- wherein the article is a coated thin film interference pigment;
- and
- wherein the selectively absorbing nanoparticle is a particle chosen from nanoparticles of iron (II, III) oxide, CeO2 zinc nitride, carbon black, iron oxide, iron sulfide, copper sulfide, perylene, perinone, quinacridone, quinacridonequinone, anthrapyrimidine, anthraquinone, anthanthrone, benzimidazolone, disazo condensation, azo, quinolones, xanthene, azomethine, quinophthalone, indanthrone, phthalocyanine, triarylcarbonium, dioxazine, aminoanthraquinone, isoindoline, diketopyrrolopyrrole, thioindigo, thiazineindigo, isoindoline, isoindolinone, pyranthrone, isoviolanthrone, miyoshi methane, triarylmethane, and mixtures thereof.
3 more elements
Dependencies are inferred from the claim text.