Composite powder and coloring composition containing the same, and their usage

This invention is to provide a new composite powder in which defects known in conventional pigments having pearl luster have been dissolved and color due to interference color is visible, and to provide means for utilizing the powder in various fields. This composite powder is prepared by coating th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KIMURA, ASA, HINENO, TERUHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES HUMAN NECESSITIES HYGIENE INKS MEDICAL OR VETERINARY SCIENCE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATION OF CARBON BLACK PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	This invention is to provide a new composite powder in which defects known in conventional pigments having pearl luster have been dissolved and color due to interference color is visible, and to provide means for utilizing the powder in various fields. This composite powder is prepared by coating the surface of globular particles (e.g. silicon dioxide) as cores having a refractive index of 1.40-1.60 with a component (e.g. titanium dioxide) having a refractive index of 2.00-2.90 in a filmy state. The group of the composite powders subjected to size classification or a coloring composition containing the composite powder is applied on the surface to be coated and causes coloring due to optical interference caused in the composite powder layer formed on the coated surface.