Methods are provided for forming a particular multi-layer micron-sized particle that is substantially transparent, yet that exhibits selectable coloration based on its physical properties. The disclosed physical properties of the particle are controllably selectable refractive indices to provide an opaque-appearing energy transmissive material when pluralities of the particles are suspended in a substantially transparent matrix material. Multiple-layered (up to 30+ constituent layers) particles result in an overall particle diameter of less than 5 microns. The material suspensions render the particles deliverable as aspirated or aerosol compositions onto substrates to form layers that selectively scatter specific wavelengths of electromagnetic energy while allowing remaining wavelengths of the incident energy to pass. The disclosed particles and material compositions uniquely implement optical light scattering techniques in energy (or light) transmissive layers that appear selectively opaque, while allowing 80+ % of the energy impinging on the light incident side to pass through the layers.

An optical article printed on a substrate may include an organic binder; and a plurality of reflective magnetic platelets provided in the organic binder, wherein the plurality of reflective magnetic platelets are substantially aligned in accordance with at least part of a surface of revolution, and wherein the plurality of reflective magnetic platelets are aligned to cause a first reflective effect of the optical article when the substrate is rotated around a first axis and to cause a second reflective effect of the optical article when the substrate is rotated around a second axis, wherein the first reflective effect is different from the second reflective effect.

A laminate that permits passage of electromagnetic waves includes a base layer made of synthetic resin and a colored layer that contains a filler made of metal. The colored layer permits the passage of electromagnetic waves and has a relative permittivity of 4.0 or greater.

The present invention relates to the field of protecting value documents and value commercial goods against counterfeit and illegal reproduction. In particular, the present invention provides processes for producing optical effect layers (OELs) comprising non-spherical magnetic or magnetizable particles and comprising a motif made of at least two areas made of a single applied and cured layer, said motif being obtained by using a selective curing performed by irradiation with an actinic radiation LED source (x41) comprising an array of individually addressable actinic radiation emitters.

The present invention relates to the field of magnetic assemblies and processes for producing optical effect layers (OELs) comprising magnetically oriented non-spherical oblate magnetic or magnetizable pigment particles on a substrate. In particular, the present invention relates to magnetic assemblies processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.

The present invention relates to the field of magnetic assemblies and processes for producing optical effect layers (OELs) comprising magnetically oriented non-spherical magnetic or magnetizable pigment particles on a substrate. In particular, the present invention relates to magnetic assemblies processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.

A bicycle component or a fishing component includes a first end portion, a second end portion and an intermediate portion extending between the first and second end portions. The first end portion has a surface on which a first dye is disposed. The second end portion has a surface which is free of the first dye or on which the first dye is disposed with a smaller amount than the first dye disposed on the surface of the first end portion. The intermediate portion includes a gradation portion having a surface on which the first dye decreases in amount from the first end portion toward the second end portion. The gradation portion has a length greater than or equal to 20 mm in a dye gradation direction extending from the first end portion toward the second end portion.

Systems and methods are provided for delivering material compositions comprising particularly-formed multi-layer micron-sized particles that are substantially transparent, yet that exhibit selectable coloration based on their physical properties suspended in substantially transparent matrix or binder materials to facilitate delivery onto substrates, particularly aerosol or aspirated delivery. The disclosed physical properties of the particles are controllably selectable refractive indices to provide an opaque-appearing energy transmissive material when pluralities of the particles are suspended in the substantially transparent matrix material. The multiply-layered (up to 30+ constituent layers) particles result in an overall particle diameter of less than 5 microns, substantially equivalent to paint pigment particles. When delivered, the material compositions form layers that uniquely implement optical light scattering techniques in energy (or light) transmissive layers that appear selectively opaque, while allowing 80+% of the energy impinging on the light incident side to pass through the layers.

Methods are provided for forming a particular multi-layer micron-sized particle that is substantially transparent, yet that exhibits selectable coloration based on its physical properties. The disclosed physical properties of the particle are controllably selectable refractive indices to provide an opaque-appearing energy transmissive material when pluralities of the particles are suspended in a substantially transparent matrix material. Multiply-layered (up to 30+ constituent layers) particles result in an overall particle diameter of less than 5 microns. The material suspensions render the particles deliverable as aspirated or aerosol compositions onto substrates to form layers that selectively scatter specific wavelengths of electromagnetic energy while allowing remaining wavelengths of the incident energy to pass. The disclosed particles and material compositions uniquely implement optical light scattering techniques in energy (or light) transmissive layers that appear selectively opaque, while allowing 80+% of the energy impinging on the light incident side to pass through the layers.

The present application discloses a decorative sheet including a supporting layer and a solid film layer. The solid film layer is disposed on the supporting layer and presents a color. The solid film layer includes a single layer or a composite layer. A thickness and/or material of at least one layer in the solid film layer is set to be varied. In this application, through the change of the thickness and/or material of the solid film layer, the color of the solid film layer can be changed, including shade changes, color changes and other variety changes, so that the decorative sheet has rich color, rich vision, better decoration effect and higher recognition. Furthermore, the present application further discloses a cover plate for a consumer electronic product with the above-mentioned decorative sheet.