655results about How to "High hiding power" patented technology

Methods and apparatus are provided for uniformly depositing a coating material from a vaporization source onto a powdered substrate material to form a thin coalescence film of the coating material that smoothly replicates the surface microstructure of the substrate material. The coating material is uniformly deposited on the substrate material to form optical interference pigment particles. The thin film enhances the hiding power and color gamut of the substrate material. Physical vapor deposition processes are used for depositing the film on the substrate material. The apparatus and systems employed in forming the coated particles utilize vibrating bed coaters, vibrating conveyor coaters, or coating towers. These allow the powdered substrate material to be uniformly exposed to the coating material vapor during the coating process.

The invention relates to electrophoretic displays comprising core-shell pigment particles having a core of low specific gravity and low refractive index and a shell of high refractive index.

The invention belongs to the technical field of road asphalt modification and relates to an ultraviolet aging-resistant compound modified asphalt, wherein on the basis of 100 parts by weight of matrix asphalt, in parts by weight, 1-6 parts of styrene-butadiene-styrene block copolymer, 3-18 parts of waste rubber powder, 5-10 parts of rock asphalt, 0.3-2.5 parts of sweller, 0.03-0.2 part of activator, 0.1-1 part of plasticizer and 0.2-0.5 part of stabilizer are further added, wherein the sweller is furfural extract oil which is subjected to dewaxing treatment previously; the furfural extract oil contains 60wt%-88wt% of aromatic components which contain 40-65wt% of heavy aromatic hydrocarbon; and the waste rubber powder is waste rubber tire tread rubber powder having the content of carbon black between 28wt% and 58wt% and the grain diameter between 45 and 80 meshes. The ultraviolet aging-resistant compound modified asphalt provided by the invention is up to the standard of the polymer modified asphalt in performance, and the ultraviolet aging resistance of the asphalt is improved to a large extent; and waste resources are utilized.

A coating film which has no problems in its film properties and is superior in hiding power for hiding sand scratches on the substrate and exhibiting a continuous plated metal-like appearance is formed in a stable manner, by coating the substrate with a primer (A) and/or a first metallic paint (B) containing non-leafing type aluminum flakes (a) having thicknesses in the range from 0.1 to 1 mum and an average particle size of 1-60 mum and, then, coating with a second metallic paint (C) containing small, thin metal flakes (b) having thicknesses not greater than 0.08 mum and an average particle size of 5-40 mum.

There is provided a white pigment for a water-based ink that has excellent reliability against clogging and stability of pigment against settling and, at the same time, has a high level of covering power. The white pigment for a water-based ink comprises particles each comprising: a core particle formed of a material having a lower specific gravity than titanium oxide; and a titanium oxide layer covering the surface of the core particle, the pigment having a particle diameter of 0.05 to 5 μm.

The invention relates to dry powder paint for construction, which is prepared from polymer latex powder, titanium pigment, calcium carbonate, calcined kaolin, talcum powder, cellulose ether, a solid defoaming agent, a solid dispersing agent, a solid thixotropic agent and coloring pigment. The preparation method of the dry powder paint comprises the following steps: putting the components of the dry powder paint into a dry powder mixer for mixing for 20-40min, and then, removing bigger particles by using a vibratory screen with 120 meshes. The use method of the dry powder paint comprises the following steps: carrying out surface pretreatment on a wall body; pouring the dry powder paint into clear water and stirring and mixing evenly, standing, and then stirring again; and applying the obtained liquid paint by adopting a roller painting, spray painting or brush painting mode. The formed paint film has the characteristics of good water resistance, alkali resistance, weather resistance, washing resistance, dirt resistance and the like, has the performances of the traditional latex paint and does not contain components of VOC (zero VOC), heavy metals and the like harmful to the environment and the human health.

Disclosed herein are a color capsule composition, which contains a polymer and a plasticizer swelling the polymer so as to allow the capsule particles to easily break and in which the capsule particles have a porous structure that boosts the effects thereof, and a method for preparing the color capsule composition. The preparation method comprises: uniformly mixing a color pigment, a plasticizer and a polymer in a first solvent to produce a first mixture solution; spray-drying the first mixture solution to produce core particles in which the color pigment is covered by the polymer; uniformly mixing the obtained core particles, a functional pigment and a second solvent to produce a second mixture solution; and spray-drying the second mixture solution to produce in which a coating layer of the functional pigment is formed on the outer surface of the polymer.

This invention relates to a core-shell polystyrene-acrylate copolymer emulsion, which comprises: emulsifiers 0.2-1.5 wt.%, monomers 45-55 wt.%, initiator 0.1-0.3 wt.%,, pH regulator 0.1-0.2 wt.%, and deionized water as balance. The emulsifiers are two or three of anionic emulsifier, nonionic emulsifier and functional allyloxy hydroxypropyl sulfonate emulsifier. The monomers are soft monomer, hard monomer and functional silane monomer containing epoxy groups and oxy groups. The solid content of the emulsion is 48-52%, the glass transition temperature of the core is 25-35 deg.C, and the glass transition temperature of the shell is (-5)-5 deg.C. The emulsion has such advantages as high wet adhesivness of the coating film and high washing resistance of the coating film.

A method and material for improved TiO2 pigment for paper and laminates is described. Phosphorous, titanium, and aluminum compounds are successively added to a TiO2 pigment suspension. Resulting pigments show improved greying resistance and hiding power over prior art pigments, and show improved results as pigments in tests of paper and laminates.

The invention discloses a method for producing rutile type titanium white powder with high hiding power, which comprises the following steps of: preparing slurry containing a primary titanium dioxide product, diluting the slurry, adding a silicon-containing compound into the slurry, then adding the silicon-containing compound and an acid aluminum-containing compound into the mixture, and performing ageing, filtration, water washing, drying, crushing and the like. The adding order, adding mode, adding quantity and the like of each coating agent are controlled by fine processes, and process and parameter conditions of each operation step are strictly controlled at the same time so that the added coating agents are deposited on the surfaces of titanium white powder particles in forms of compact silicon dioxide coating layers, loose silicon dioxide coating layers and alumina coating layers; and the hiding power of a titanium white powder product is improved and the characteristics such as high whiteness and the like and basic weather resistance of the titanium white powder product are kept by combining the processes of ageing, filtration, water washing, drying, crushing and the like.

The invention discloses a wood-plastic composite for walls, comprising the following components by mass: 68-78 parts of wood flour, 20-25 parts of PE plastics, 2-4 parts of coupling agents, 0.1-0.2 part of antioxidant and 2-5 parts of precipitated calcium carbonate-silicone oil. The invention also discloses a preparation method of the wood-plastic composite for walls. The quantity of the PE plastics in the formula of the wood-plastic composite is 20-25%, which is half as much as 50% of plastics in the common wood-plastic material, thus greatly saving the plastics and lowering the production cost, meanwhile, the prepared wood-plastic composite has the characteristics of high strength, creep resistance, good processability, low moisture rate and high weatherability.

The invention provides a preparation method of a special type titanium dioxide pigment for a plastic color master batch, comprising the following steps of: preparing a titanium dioxide primary product into titanium dioxide slurry; adjusting a pH (Potential of Hydrogen) value by using an alkaline solution; adding phosphate or phosphoric acid, dispersing and carrying out grinding treatment; heating and raising the temperature; adding an acidic aluminum salt compound or an alkaline aluminum salt compound; meanwhile, adding inorganic acid or inorganic alkali and maintaining the pH value of the slurry; curing to form a first layer of a hydrated alumina covering layer on the surface of a titanium dioxide particle; continuously adding the inorganic acid or the inorganic alkali, adjusting the pH value and curing; washing by using de-ionized water and filtering; adding modified polysiloxane into a filtering cake; dispersing at a high speed to form a second layer of an organic silicon covering layer on the hydrated alumina covering layer; and drying and carrying out air-powder treatment to obtain the special type titanium dioxide pigment for the plastic color master batch. The preparation method disclosed by the invention has the advantages that the combination property is good; the dry powder mobility, the dispersity, the covering capability, the machining plasticization performance, the light resistance and the heat resistance achieve the level of special titanium dioxide for an international color master batch; and the application prospect is wide.

The present invention relates to effect pigments which are based on flake-form substrates having a circular form factor of 1.2-2 and are coated with at least one high-refractive-index layer, and to the use thereof, inter alia in paints, coatings, printing inks, plastics and in cosmetic formulations.

The invention discloses a luminant white paint. The luminant white paint is obtained by mixing a main paint, a curing agent and a diluent according to a mass ratio, wherein the main paint comprises the following components in parts by weight: 35-40 parts of alkyd resin, 3-5 parts of dispersing agent, 30-40 parts of titanium white powder, 10-20 parts of extender pigment, 0.2-0.5 parts of anti-setting agent, 0.2-0.4 parts of leveling agent, 0.2-0.5 parts of antifoaming agent, 0.5-1.0 parts of anti-yellowing agent and 20-25 parts of main paint solvent; the curing agent comprises the following components in parts by weight: 10-20 parts of curing agent solvent, 0.1-0.2 parts of dehydrating agent, 60-70 parts of HDI (Hexamethylene Diisocyanate) type curing agent and 30-40 parts of TDI (Toluene Diisocyanate) type curing agent; and the diluent comprises the following components in parts by weight: 60-70 parts of ester solvent and 30-40 parts of ketone solvent. The luminant white paint disclosed by the invention has the advantages of rapidness for leveling after being sprayed, full paint film, rockiness and scratch resistance. Meanwhile, the invention also discloses a preparation method of the luminant white paint.

The invention provides a method for preparing special titanium dioxide pigment for plastic sectional materials by a chlorination method, which comprises the following steps that: the chlorination method is adopted for preparing titanium dioxide primary products into slurry, and the pH value of the slurry is regulated to 4.0 to 5.0; phosphate dispersing agents are added; grinding treatment is carried out, then, grinding media is removed, and the temperature is raised; water-soluble silicate solution is added, the pH value of the slurry is maintained between 3.5 and 4.5, amorphous silicon oxide is formed, curing is carried out, and a first covering layer is formed; the pH value of the slurry is regulated to 6.0 to 7.0, curing is carried out, and a second covering layer is formed; aluminum salt solution is added, the pH value is controlled between 7.0 and 9.0, curing is carried out, a third covering layer is formed, the pH value of the slurry is regulated to 6.0 to 7.0, and curing is carried out; the slurry is washed by de-ionized water until the conductivity of filter cake is higher than 15000 ohm*cm, and then, drying and air powder treatment are carried out; modified polysiloxane is added in the air powder process, and a fourth organic covering layer is formed; and materials are recovered through a bag filter. The titanium dioxide pigment prepared by the method provided by the invention has the advantages of high weatherability, high shielding capability, high non-transparency and excellent processing performance in the field of plastic sectional materials.

The invention relates to the field of coating for building materials, and in particular relates to a water-based antirust and antiseptic paint for metal and a preparation method thereof. The water-based antirust and antiseptic paint for metal comprises the following components in parts by weight: 200-250 parts of deionized water, 180-220 parts of titanium dioxide, 60-100 parts of water-based nanometer sizing agent, 20-40 parts of kaolin, 20-40 parts of nanometer bentonite, 8-15 parts of nanometer zinc calcium phosphate, 40-60 parts of alcoholic acid emulsion, 80-130 parts of water-based fluorocarbon resin, 150-200 parts of pure acrylic emulsion, 20-60 parts of organosilicone emulsion, 10-30 parts of propylene glycol, 1-3 parts of nanometer silicon dioxide, 4-8 parts of dispersing agent and 10-40 parts of coalescing agent. The water-based antirust and antiseptic paint for metal provided by the invention has high brightness, glossiness and plumpness, is non-toxic and harmless in material, non-combustible, unexplosive, safe and environment-friendly, and has excellent antirust and antiseptic performance with the matching of the components.

The invention relates to an energy-saving high-temperature counter radiation resistant inorganic coating for coating the liner of a kiln and a preparation method thereof. The coating mainly comprises oxides, such as cobalt oxide, zirconium oxide powder, aluminum oxide and chromic oxide, and silicon powder, silicon carbide, sodium silicate, aluminium dihydrogen phosphate, silica flour, graphite powder, boron oxide and other components and is prepared by grinding, soaking, heating reaction, stirring and mixing. The coating has high thermal shock resistance, high radiation utilization rate, high corrosion resistance, high cracking resistance, high oxidization resistance and high thermal stability. The inorganic coating of the invention has the advantages of allowing for normal construction without making special modification of the basal body of the kiln, along with small investment, quick response, no toxicity, no corrosion and desirable social and economic benefits.

The invention relates to the technical fields of color master batches and preparing technologies thereof, in particular to a preparing technology for color master batches, and particularly discloses a preparing technology for color master batches for high-speed spinning fibers. The preparing technology includes the steps of carrier grinding, coloring material grinding, matched material grinding, assistant grinding, mixed grinding, high-speed grinding, extrusion prilling and drying. The color master batches prepared with the technology can be easily mixed with PET product plastic, and the even coloring effect can be achieved. Dispersibility, coloring strength and covering power are improved, weather resistance, acid resistance, heat resistance and cold resistance are achieved, the chemical stability of pigment is kept, and the color master batches are more environmentally friendly and healthier in the use process.

The invention provides a preparation method of a high-light-resistant titanium dioxide pigment for laminated paper. The method comprises the following steps: preparing titanium dioxide slurry from a rutile-type titanium dioxide initial product prepared by adopting a chlorination process method, and adjusting the pH value to 8.5-10.5; adding a citric acid radical-containing organic substance as a dispersing agent, and performing grinding treatment; performing heating to 55-65 DEG C for coating treatment, performing coating by using a dense aluminum phosphate coating layer, performing coating byusing a loose silicon aluminum compound coating layer, and performing coating by using a loose boehmite-type hydrated aluminum oxide coating layer; performing washing by using deionized water until conductivity of a filter cake is greater than 15000 omega*cm, and performing drying; and adding amino-containing organic matter in the steaming powder process, and performing organic coating treatmentto obtain the titanium dioxide pigment for the decorative laminated paper. The method provided by the invention has the advantages that the titanium dioxide pigment prepared by the method has the characteristics of high light performance, good whiteness and a high retention rate in the laminated decorative paper, and the prepared titanium dioxide pigment has a medium color bottom phase and the advantage of easy color matching, and can be widely used in the field of the high-end laminated decorative paper.

The invention discloses a method for preparing rose calcium carbonate from low-grade limestone, which comprises the following steps: 1) proportionally calcining low-grade limestone and blind coal to prepare calcium oxide; 2) screening under vibrations to remove coal ash and lime powder, thereby obtaining lumpy lime; 3) adding water to slake the lumpy lime, removing impurities by hydrocyclone and vibration screening to obtain fine emulsion slurry, adding a whitener, and aging to obtain the Ca(OH)2 prime slurry; 4) after regulating the temperature and concentration of the Ca(OH)2 prime slurry, adding a crystal form control agent, carrying out bubbling carbonation reaction, and adding a dispersant; when the pH value of the slurry is lower than or equal to 7, stopping carbonation to obtain a cured slurry; and 5) after the cured slurry is thickened, dehydrating to obtain the rose calcium carbonate. Compared with common light calcium carbonate, the rose calcium carbonate disclosed by the invention has the advantages of higher crystal completeness, high surface porosity, high light scattering coefficient and stronger covering power; and the invention is applicable to the industries of paper making, rubber, plastics and paint.

The invention discloses a black zirconia ceramic material composition. The black zirconia ceramic material composition is prepared from the following ingredients in percentage by mass: 0.01-4% of ferric oxide, 0.01-3.5% of cobaltous oxide, 0.01-3.5% of chromic oxide, 0.01-15% of aluminum oxide, 0.01-4% of nickel oxide, 0.01-3.5% of manganese oxide, 0-3.5% of zinc oxide, 2-7% of yttrium oxide, 0-4%of titanium oxide, 0-3% of silicon dioxide, 0-5% of cerium oxide and the balance of hafnium oxide-containing zirconium oxide. The black zirconia ceramic material composition disclosed by the invention is small in powder particle size and uniform in dispersion, and a black zirconia ceramic containing the black zirconia ceramic material composition has relatively high strength and rigidity, relatively high covering power and relatively low transmittance. Meanwhile, the invention further discloses the black zirconia ceramic prepared by adopting the black zirconia ceramic material composition anda preparation method of the black zirconia ceramic.