1570results about "Luminescent paints" patented technology

The invention provides an optical coating composition, a fluorescent optical membrane and a preparation method thereof. The optical coating composition comprises the following components in parts by weight: 0.01-3 parts of red fluorescence quantum dot material, 1-40 parts of green fluorescence quantum dot material, 0-90 parts of solvent, 0-20 parts of photodiffusion agent, 5-60 parts of film-forming material and 0-10 parts of film-forming assistant. The weight ratio of the red fluorescence quantum dot material to the green fluorescence quantum dot material is (1:100):(1:10). The optical coating composition provided by the invention can be applied on a transparent substrate or existing optical membrane surface to form a fluorescent optical membrane. The fluorescent optical membrane formed by the optical coating composition can achieve the effect of enhancing the displayable color range of the emergent light source.

The invention discloses a preparation method of a light-emitting composite paint. The preparation method comprises the following steps: (1) preparing a graphene/long afterglow phosphor composite; and (2) dispersing 3-6 parts of graphene/kaolin/SiO2 composite material and 2-4 parts of a graphene/calcium carbonate/SiO2 composite into 15-20 parts of deionized water, processing for 90-120 minutes so as to form a solution A3, dispersing 1-5 parts of graphene/red-emit phosphor/SiO2 composite into 15-20 parts of deionized water, processing for 90-120 minutes so as to form a solution B3, dispersing 1-5 parts of graphene/long afterflow phosphor composite into 15-20 parts of deionized water, processing for 90-120 minutes so as to obtain a solution C1, respectively and slowly dropwise adding solutions B3 and C1 in the solution A3 until a mixed solution is formed under conditions of performing ultrasonic shaking at a frequency of 200-400KW and stirring at a centrifugal speed of 500-800r/min, adding 70-80 parts of film forming matter, and mixing and stirring uniformly, so as to obtain the light-emitting composite paint. The preparation method is capable of obviously improving the luminous intensity and luminous uniformity of a water-borne luminous paint, and further improving the dispersibility of phosphor in the paint and the construction performance and storage stability of the paint.

Articles are disclosed wherein a color-imparting non-hiding coating layer is deposited on a surface thereof. The coating layer is deposited from a protective coating composition comprising color-imparting particles having a maximum haze of about 10% and a film-forming resin. Methods of using the coatings, and the substrates coated therewith, are also disclosed.

Flexible luminescent paints are prepared from physical blends of hybrid epoxy acrylic resins, cementicious acrylic resins and optionally pure acrylic coating resins together with monopropylene glycol, suspension additives, rheological additives and photoluminescent pigments. The luminescent paints exhibit bright, even and long-lasting photoluminescent afterglow, excellent flexibility in both thin and thick layers, and are suitable for spraying, brushing, rolling and screen printing. Optional fluorescent pigments may be utilized to give daylight coloration and up-convert the photoluminescent emissions to the fluorescent emissions color.

The invention discloses application of a multifunctional carbon quantum dot taken as a fluorescent whitening agent in the fields of spinning printing and dyeing, washing agents, papermaking, plastics, leathers or coatings and the like. The carbon quantum dot disclosed by the invention has the advantages of wide application field, good whitening effect and good light resistance, is innoxious and environmentally friendly, can be applied to the fields of spinning printing and dyeing, washing agents, papermaking, plastics, leathers or coatings and the like, and can generate unforeseeable technical effect because the carbon quantum dot can generate active oxygen free radicals under the condition of illumination, wherein the unforeseeable technical effect is as follows: the bacteria attached to the surfaces of spinning printing and dyeing materials, the washing agents, paper sheets, the plastics, the leathers or the coatings and the like can be effectively killed after the spinning printing and dyeing materials, the washing agents, paper sheets, the plastics, the leathers or the coatings and the like which are doped with the carbon quantum dot absorb ultraviolet light.

The invention discloses an organosilicon modified tert-fluoro emulsion and a preparation method of a luminescent coating which takes the emulsion as a base material. The emulsion takes vinyl ester of tertary carboxylic acid, an organosilicon monomer, an organic fluorine monomer and an acrylic monomer to perform graft copolymerization, the prepared emulsion takes water as a solvent, does not contain organic solvent and is an environment-friendly product, and emulsion particles are of a core-shell structure. The production method of the luminescent coating comprises the following steps: mixing and blending the emulsion with super-efficiency afterglow luminescent powder and other coating additives, the prepared luminescent coating has corrosion prevention and self-cleaning functions, and can be applied to the fields such as building decoration, advertisement signs, factory instruments, airfield runways, road rails, handicraft articles and the like. The coating has the advantages of excellent cost performance ratio, convenient production and construction and easy implementation and popularization.

Aqueous thermal inkjet ink composition for the printing of security documents comprising at least one luminescent water-soluble lanthanide complex.

The invention discloses a noctilucent powder paint which is mainly prepared from the following raw materials in parts by weight: 50-90 parts of film forming agent, 10-30 parts of curing agent, 0.01-0.03 part of defoaming agent, 0.4-1.0 part of flatting agent, 0.4-1.0 part of titanium dioxide, 5-10 parts of glass beads and 8-10 parts of alkaline earth metal aluminate. In the invention, the formula of the paint is optimized, different additives are matched mutually, and the alkaline earth metal aluminate is used as the luminous material, thus the paint can emit light and reflect light at night, the luminous time is more than 12 hours, the luminous intensity can reach 1000mcd/m<2>, the paint can reflect light in the existence of weak light, and the application range of the paint can be expanded.

The invention relates to a color conversion screen printing ultraviolet curing organic fluorescence coating and the method for preparing the same. Said comprises prepolymer, active monomer, organic fluorescence coating, light initiator, dispersant agent, defoaming agent, levelling agent and adhesion promoter. The invention also relates to another color conversion screen printing waterborne thermal curing organic fluorescence coating and the method for preparing the same. It comprises film forming matter, diluting agent, organic fluorescence coating, disperant agne, waterborne defoaming agent, levelling agent and thickener. The coating is cured on ITO glass through screen printing and becomes color conversion film. The invention makes use of the property of fluorescence coating that it can emit brighter light under ultraviolet illumination. The fluorescence coating can be costed on display surface. The color and brightness will change when different light pass through said color conversion film. The invention is characaterized by simple process, fast curing speed, and good flexibility, aging resistant, good adhesion between film and glass and environmental friendly.

An aqueous ink jet printer ink composition is designed for ink jet printing of fluorescent images. This composition contains fluorescent pigment particles that have (1) an excitation peak wavelength of at least 300 nm and less than 400 nm, and (2) an emission peak that is greater than 400 nm and up to and including 700 nm when exposed to fluorescent-exciting radiation. The non-polymeric fluorescent pigment particles have a median particle size that is greater than 10 nm and up to and including 500 nm, and the 95^th percentile fluorescent pigment particle size is less than 150 nm. The composition can be continuously printed on various pretreated or untreated receiver elements or articles to provide a fluorescent image that can be detected when excited at the appropriate wavelength. The fluorescent image can thus be used as a security or identification mark for various purposes.

Luminous water paint containing long-lasting phosphorescence material coated with nano titanium dioxide and a preparation method thereof are disclosed, belonging to luminous water paint field and inorganic luminous paint and particularly luminous paint coating treatment technique. The preparation method includes the following steps: firstly, coating the long-lasting phosphorescence material with nano titanium dioxide, then preparing the water paint from the coated long-lasting phosphorescence material, film-forming emulsion resin, filler, addition agent and water. The luminous water paint has good stability to hydrolysis and good adhesive attraction; the paint film is of good water resistance, alkali resistance, weather resistance, high brightness and long after time. The luminous water paint is applicable in door and out of door and applicable to boats and road signs and is particularly suitable for underwater signs and road signs in pluvial regions.

A taggant for marking a target through the use of a carrier or a projectile loaded on a firing device and methods for fabricating the same are disclosed. The taggant including photoluminescent semiconductor nanocrystal(s) materials incorporated in a carrier or projectile. The photoluminescent semiconductor nanocrystal(s) materials may be encapsulated in a medium for facilitating marking of the target.

A luminescent-film-coated product includes a substrate, a first layer of a transparent resin matrix containing a phosphorescent material and/or a fluorescent material, and a second layer of a transparent resin matrix containing a shiny pigment made of glass flakes coated with a high-refractive-index metal oxide. Another luminescent-film-coated product includes a substrate and a layer of a transparent resin matrix containing a phosphorescent material and/or a fluorescent material and a shiny pigment. Another luminescent-film-coated product includes a substrate, a first layer of a transparent resin matrix containing a shiny pigment made of glass flakes coated with silver, gold, nickel, or a high-refractive-index metal oxide, and a second layer of a transparent resin matrix containing a phosphorescent material and/or a fluorescent material, in which the shiny pigment has a maximum visible light reflectance of 30% or more. A product coated with a luminescent film, for example, warning/safety signs, position signs, and ornaments having good visibility and design can be provide by suitably combining a phosphorescent or fluorescent material and a shiny pigment.

The invention relates to an optical conversion luminous film and a preparation method thereof. The optical conversion luminous film is formed by a diffusion film and a mixed paint layer on the diffusion film; the optical conversion luminous film has the thickness of 30-200mum, wherein, the thickness of the diffusion film is 20-70mum; the mixed paint layer is made of 10.000-30.000% of yellow luminous fluorescent material, 0.001-2.000% of red luminous fluorescent material, 60.000-89.000% of polymer resin, 1.000-5.000% of bi-amino silane, 0.000-20.000% of diluting agent and 0.000-5.000% of accessory ingredient. By combining the yellow luminous fluorescent material and the red luminous fluorescent material, the invention can realize the aim of regulating chromaticity coordinate, color temperature and color rendering index, thus preparing the optical conversion luminous film which is made of the fluorescent materials and has the advantages of high color rendering index of the photodiffusion effect, good property of uniform light, anti-dazzle, high light conversion efficiency, low cost, excellent aging characteristic and simple production technique.

Disclosed is a method of preparing a fluorescent polymer, whereby an ethylenically unsaturated monomer is copolymerized with a polynuclear aromatic hydrocarbon or a substituted aromatic derivative thereof, such that the resultant polymer is fluorescent. Also disclosed are coating compositions containing such fluorescent polymers.

The invention discloses a blue-light-resistant protective film and a preparation method thereof. The blue-light-resistant protective film can be used for converting blue light into visible light in any other waveband so as to play a role in protecting eyes. The blue-light-resistant protective film includes seven layers: a film protective layer, an adhesive layer A, a scratch-resistant layer, a blue-light-resistant layer, a main film layer, an adhesive layer B and a stripping layer, wherein the adhesive layer B is arranged on the upper surface of the stripping layer of a substrate layer, the main film layer is arranged on the adhesive layer B, the blue-light-resistant layer is introduced to the main film layer, the scratch-resistant layer is introduced to the blue-light-resistant layer, the adhesive layer A is arranged on the scratch-resistant layer, and the film protective layer is arranged on the adhesive layer A. By using the blue-light-resistant protective film, the blue light can be isolated, the irritation of the blue light to eyes can be greatly reduced, the myopia can be controlled, and the eyes can be protected.

The present invention relates to novel compositions comprising an organic semiconductor (OSC) and one or more organic solvents. The composition is solid at a temperature of 25° C. and fluid at a higher temperature and the boiling point of the solvent is at most 400° C. Furthermore, the present invention describes the use of these compositions as inks for the preparation of organic electronic (OE) devices, especially organic photovoltaic (OPV) cells and OLED devices, to methods for preparing OE devices using the novel compositions, and to OE devices, OLED devices and OPV cells prepared from such methods and compositions.

The present invention provides for a composition comprising a pigment, wherein the composition is suitable for coating a surface that is, or is expected to be, exposed to the sun. The pigment comprises particles that fluoresce in sunlight, thereby remaining cooler in the sun than coatings pigmented with non-fluorescent particles. The particles comprise solids that fluoresce or glow in the visible or near infrared (NIR) spectra, or that fluoresce when doped. Suitable dopants include, but are not limited to, ions of rare earths and transition metals.