1581results about "Luminescent paints" patented technology

Covert flakes having one or more symbols and / or a selected shape are used in a composition, such as ink or paint, to provide a covert security feature to an object. In some embodiments the composition includes base pigment, and the covert flakes are covert pigment flakes that match the visual characteristics of the base pigment. In another embodiment, clear covert flakes are mixed in the carrier with base pigment. In another embodiment, clear covert flakes are mixed in a varnish base to provide a clear composition that can be applied over an existing security feature or elsewhere. The composition is used to print a field on the object, such as a stock certificate or bank note, for example. The covert flakes are not readily detectable by causal observation under visible light. In one embodiment, illuminating the covert security feature with ultraviolet light causes a covert flake to fluoresce and allows the observer to identify the location of the covert flake so that cover indicia may be observed. In a particular embodiment, a covert flake having one or more symbols is located using non-visible radiation, and then observed under visible light to read the symbol(s) on the covert flake.

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.

The invention relates to a transparent nano florescent material composition and application thereof in invisible anti-counterfeiting products. The invention provides the transparent nano florescent material composition of which the transparency to wavelengths between 390 and 650 nanometers is over 50 percent. The transparent nano florescent material composition comprises the following nano florescent materials: inorganic nano oxide fluorescent powder which contains rare earth elements, an organic dye which contains unsaturated bonds, organic light-emitting small molecules, semiconductor fluorescence quantum dots, and organic metal complex molecules which contain the rare earth elements, wherein the average particle diameter of the nano fluorescent materials is not more than 400 nanometers.

The invention discloses a selective radiation refrigeration coating and a composite material and application method thereof. The selective radiation refrigeration coating comprises a radiation refrigeration function layer with special structure particle filler. The radiation refrigeration function layer is used for reflecting ultraviolet light and / or visible light and / or near infrared light in sunlight and emitting heat through an atmosphere window in an infrared radiation mode, the radiation refrigeration function layer comprises a rodlike structure particle filler and radiation refrigerationfunction layer resin, and the particle filler is distributed in the radiation refrigeration function layer resin. According to the coating, the reflectivity for solar spectrum energy is larger than or equal to 80%, the reflectivity of the atmosphere window is larger than or equal to 80%, and the radiation refrigeration power being 100 W / m<2> or above can be supplied under the normal temperature.The coating is high in mechanical strength and good in weather resistance and has the quite high practical value.

Luminescent polymers are prepared from thermosetting unsaturated polyesters, suspending fillers and phosphorescent pigments and utilized to make gel coated articles and molded, cast and fiberglass reinforced plastic (FRP) articles. The luminescent polymers show bright and long-lasting photoluminescent afterglow, strong thermostimulation of afterglow by heat and electroluminescent properties. The preferred thermosetting unsaturated polyester resins are prepared by condensing mixtures of ethylenically unsaturated and aromatic dicarboxylic acids and anhydrides with dihydric alcohols and a polymerizable vinylidene monomer. Preferred suspending fillers and thixotropic modifiers include silica, microspheres, glass fibers and other short fibers, nepheline syenite, feldspar, mica, pumice, magnesium sulfate, calcium carbonate, bentonite and the various clays and thixotropic modifiers and mixtures thereof. Preferred phosphorescent pigments include alkaline earth aluminate phosphors, zinc sulfide phosphors and mixtures of these phosphors.

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 relates to a fluorescigenic pavement reflecting adhesive tape and a manufacturing method thereof. The fluorescigenic pavement reflecting adhesive tape is manufactured by adding a reflecting coating or adding various flourescent materials (such as rare earth ion-activated zinc sulfide fluorescence powder) in an amount which is 0.1 to 5 weight percent based on the total amount of the reflecting coating and a substrate into the reflecting coating or the reflecting coating and substrate of any of various conventional pavement reflecting adhesive tapes. The pavement reflecting adhesive tap is comprised of the fluorescigenic reflecting coating, the substrate and a pressure sensitive adhesive, wherein the fluorescigenic reflecting coating is coated on the front side (upper side) ofthe substrate; and the pressure sensitive adhesive is applied on the back side (down side) of the substrate. The novel pavement reflecting adhesive tape retains the various kinds of performance of the conventional pavement reflecting adhesive tapes, particularly retroreflection (namely reflection) performance. The novel pavement reflecting adhesive tape can also emit fluorescence of certain intensity. When used as pavement traffic marking lines or other marks, the novel pavement reflecting adhesive tape is more striking and can be clearly seen easily by drivers, so that the drivers can drive more safely at night.

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 present invention relates to an energy storage self-lighting road marking dope which is characterized in that the raw materials of the dope consist of 15 to 16 portions of petroleum resin, 15 to 16 portions of quartz sand, 25 to 50 portions of calcium carbonate powder, 18 to 20 portions of glass bead, 0.8 to 1.2 portions of polyethylene wax, 0.8 to 1.5 portions of dioctylphthalate, 1.0 to 1.2 portions of EVA hot-melt adhesive, 2.0 to 4.0 portions of titanium pigment and 2.0 to 10 portions of energy storage luminescent material by weight proportion. All the raw materials of the energy storage self-lighting road marking dope are commercial universal industrial raw materials, the energy storage self-lighting road marking dope has low manufacturing cost and simple technology, also has good energy storage self-lighting and reflecting functions and ensures that a road marking has the characteristics of good luminescent recognizability, high luminescent intensity and long luminescent time no matter under the condition with light or without light; and the marking dope can be widely applied to various kinds of roads without illuminating device, such as highway, town road, village road, montane road, and the like, and can improve the traffic safety factor greatly.

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 95th 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.

The invention provides a preparation method for a super-hydrophobic self-luminous coating. The method comprises the following two steps of 1, uniformly mixing a high-molecular polymer monomer, a cross-linking agent, an initiating agent, nano-particles and long-lasting phosphor materials to obtained a mixture; 2, uniformly coating the surface of a base material with the mixture, and carrying out polymerization to obtain the super-hydrophobic self-luminous coating. The preparation method for the super-hydrophobic self-luminous coating overcomes the shortcomings of the prior art, the application range of the long-lasting phosphor materials is widened, and meanwhile the problem that the super-hydrophobic self-luminous coating is decomposed or the luminous intensity is reduced when water is encountered is solved. The preparation method for the super-hydrophobic self-luminous coating is simple in process and high in universality, and the manufacturing cost is saved.

The invention discloses a nanocomposite road marking coating material. The nanocomposite road marking coating material comprises the following ingredients in parts by weight: 20-30 parts of glass powder, 6-10 parts of aluminum oxide powder, 50-80 parts of filler, 30-40 parts of epoxy resin, 15-20 parts of aqueous epoxy modified acrylate, 15-20 parts of glass micro-beads, 10-20 parts of chitin, 15-20 parts of chitosan, 20-40 parts of nano titanium white, 15-20 parts of nano zinc oxide, 10-15 parts of nano-silica, 2-4 parts of 25wt% ammonia water, 30-40 parts of acrylic emulsion and 15-20 parts of nano rare-earth self-luminous material. The invention further discloses a preparation method of the nano coating material. The nanocomposite road marking coating material disclosed by the invention is high in drying speed and long in service life, is wear-resistant and anti-fouling and has a bacterium resisting effect, and nano-materials or nano-structured ingredients are introduced into an organic coating material, so that organic and inorganic matched compositing or hybridization is realized. The advantages of organic polymers and inorganic-structured ingredients are integrated, so that the properties of the coating material are obviously improved.

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 method for preparing multi-color long afterglow water borne luminescent coatings. The coating is prepared by taking a high molecular polymer formed by mutual polyreaction of three monomers through initiating agents as acrylic emulsion, taking the synthetic acrylic emulsion as a base resin of the coating and adding luminescent powder, auxiliary agents and fillers; the prepared multi-color long afterglow water borne luminescent coatings have good luminescent property, wear-resisting property, adhesion property and the like. The coatings feature simple preparation process and convenient construction, and compared with the traditional oil soluble luminescent coatings, the coatings discharge no noxious solvents and enjoy environment-friendly production process.

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.

An electroluminescent (EL) coating system for a vehicle and a method of providing the EL coating system are disclosed. A dielectric coating composition is applied to a conductive substrate, such as an automotive body panel. Application of the dielectric coating composition, which includes an EL phosphor, forms a dielectric film layer on the substrate. A conductive coating composition, which includes an electroconductive additive, is applied to the dielectric film layer to form a conductive film layer on the dielectric film layer. The dielectric coating composition is disposed between the substrate and conductive film layer such that the conductive film layer remains spaced from the substrate. The EL phosphor in the dielectric film layer is excitable by an electrical field established across the dielectric film layer. As such, the coating system of the vehicle is EL, or ‘electroluminesces,’ upon application of an electrical charge to the substrate and the conductive film layer.

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.