177 results about "Pigment particle" patented technology

The application provides a triarylmethane derivative, a pigment dispersion liquid, a preparation method thereof and a photoresist, and relates to the field of photoresists. The structural general formula of the triarylmethane derivative is: wherein X1 is selected from one of long-chain alkyl groups with a length of C1-C12, X2 is selected from hydrogen or an alkyl group, X3 is selected from one of H, an alkyl group and an aromatic group, and Q is selected from one of a carboxyl group, a sulfonic acid group and a phosphoric acid group. The triarylmethane derivative can generate strong van der Waals force and pi-pi conjugation effect with pigment molecules in a colorant by virtue of the large-plane conjugated triarylmethane skeleton, so as to be firmly anchored on the surface of the pigment particles; the strong polar functional groups such as the sulfonic acid group in the molecular structure of the triarylmethane derivative are combined with the alkaline dispersant, the side long-chain alkyl groups fully act on the dispersion medium, and the re-aggregation of the nano pigment particles is effectively prevented through strong steric hindrance and electrostatic stabilization mechanism, so that the problem of poor dispersion stability is solved.

The utility model discloses a high-strength hot stamping foil which comprises a base film layer, a hot melt adhesive layer, an aluminum layer, a pigment layer and a protective layer which are sequentially stacked, the base film layer is a modified polyester film, and the surface of the aluminum layer is provided with a micropore structure; the pigment layer is composed of nano pigment particles, and the protective layer is a modified polyurethane coating. According to the utility model, the base film layer improves the mechanical strength and tensile property of the hot stamping foil, so that the hot stamping foil is not easy to deform or break under the action of high temperature and mechanical stress; the hot melt adhesive layer improves the bonding strength and heat resistance of the hot melt adhesive; the protective layer can effectively prevent the hot stamping foil from being abraded due to friction in the using process.

The invention belongs to the field of pigment color paste, and particularly relates to a modified coloring agent with a triazine structure and application of the modified coloring agent. The structure of the modified colorant is shown as a general formula D1, and the anchoring group L anchors the modified colorant on the surfaces of pigment particles in a physical adsorption or chemical bond form to realize surface modification of the pigment. According to the modifier colorant, the hydrophilicity or lipophilicity of the pigment can be effectively regulated and controlled by adjusting the variety and number of triazine substituent groups, the nano pigment paste treated by the modifier has self-dispersing performance, other auxiliaries do not need to be added, the dispersity, stability and filterability of the nano pigment paste can be effectively improved, and the nano pigment paste can be used for preparing the nano pigment paste. And the coating has excellent coloring ability.

The utility model discloses a historical building outer wall grey sculpture repairing and toning preparation device, which belongs to the technical field of toning preparation and is technically characterized by comprising a main body assembly, a crushing assembly, a stirring assembly and a filtering assembly. According to the pigment preparation device, when pigment preparation is carried out, large pigment blocks can be firstly placed in the crushing assembly, the large pigment blocks can be ground by operating the crushing assembly, so that the large pigment blocks are crushed into small particles, and after crushing is completed, various pigment blocks can be stirred and mixed through the stirring assembly; after mixing, pigment particles can be filtered through the filtering assembly, so that pigment blocks still containing large particles are avoided, and the pigment blocks can be taken out for use after being filtered.

The utility model relates to a fabric washing resistance testing device, which comprises a base, a water storage cavity, a water inlet pipe, a water outlet pipe, a water outlet pipe and a water outlet pipe and is characterized in that the left side of the top of the base is provided with a circular groove; the impeller washer is mounted in the circular groove and used for washing the fabric; the water changing assembly is arranged at the bottom of the base and used for changing water for the impeller washer. The utility model relates to the technical field of fabric performance detection. According to the testing device for the washing resistance of the fabric, through the arranged filtering assembly, when sewage makes contact with a filtering plate, most pigment particles in the sewage can be adsorbed through the filtering plate, so that water becomes clear again, and the situation that the subsequent fabric washing detection effect is affected due to continuous use of washing water is avoided; along with the gradual increase of the water level in the water storage cavity, the floater moves upwards again, and the next turn of fabric washing can be started until the buzzer alarm gives an alarm again, so that water resources can be effectively saved.

This utility model relates to the field of ink production technology, specifically to a multi-compartment automated storage system for color ink raw materials, comprising: a support frame; a pneumatic conveying box disposed inside the support frame, the pneumatic channel of the pneumatic conveying box being fixed to the support frame, and multiple openings on the top of the pneumatic conveying box; and multiple pigment storage compartments detachably connected to the support frame. The nano-pigment particle storage device proposed in this application connects multiple color pigment storage compartments to the pneumatic conveying box. A pull plate component controls the quantitative delivery of target color pigment particles into the pneumatic conveying box, and then high-pressure gas is input to transport the pigment particles to a mixing container. This method of storing and transporting pigment particles is far less costly than the existing method of storing pigment particles using organic dispersants, and by dispersing on demand, it avoids the problems of uneven concentration and clumping caused by long-term storage.

A microcell electro-optic device is disclosed that comprises an electrophoretic medium including electrically charged pigment particles, a charge control agent, a basic material that is capable of accepting a proton, an organic electroactive compound, and a non-polar liquid. The composition of the electrophoretic medium enables improved electro-optic performance, the reduction of remnant voltage of the electro-optic device and the mitigation of the degradation of the electrodes and other components of the device even after operation using DC-imbalance waveform.

The utility model belongs to the technical field of papermaking industry, and particularly relates to a pulper for packaging paper production, which comprises a bottom plate. A driving motor is fixedly connected to the inner side wall of the bottom plate; a rotating paddle is arranged at the output end of the driving motor; a plurality of groups of supporting blocks are fixedly connected to the side wall of the bottom plate; the supporting blocks are arranged in a circumferential array; the end part of the supporting block is fixedly connected with a stirring barrel; the end part of the stirring barrel is rotationally connected with a rotating paddle in a penetrating manner; a plurality of groups of gas conveying pipes are fixedly connected to the inner side wall of the stirring barrel; the end part of the gas conveying pipe is fixedly connected with a gas outlet machine; guide rail frames are fixedly connected to two sides of the upper end part of the stirring barrel; the inner side wall of the guide rail frame is slidably connected with a sliding rail rod. The flotation device is additionally arranged, gas is conveyed into the slurry, ink and pigment particles in the slurry are adsorbed through the gas, a foam layer is formed, foam is removed through the foam scraping plate, separation of ink and pigment is achieved, the whiteness and color of paper are improved, and the quality and printing performance of the paper are improved.

A variable light transmission device is disclosed and a method of manufacture of the same. The variable light transmission device comprises two light transmissive electrodes and a microcell layer having a plurality of microcells, each microcell comprising a protrusion structure and a channel, and including an electrophoretic medium. The opacity of the device is controlled by an applied electric field.

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.

The application discloses a polylactic acid / calcium carbonate papermaking coating composite pigment and a preparation method and application thereof, and belongs to the technical field of papermaking. In the application, under high-speed stirring at pH 7.6-7.8, a carbonate aqueous solution is added dropwise into a calcium salt solution, and porous amorphous calcium carbonate particles are prepared through reaction; the porous amorphous calcium carbonate particles are added into polylactic acid, the polylactic acid fills the internal pores of the porous amorphous calcium carbonate particles and coats the particles, and the polylactic acid / calcium carbonate papermaking coating composite pigment is obtained. The polylactic acid / calcium carbonate papermaking coating composite pigment prepared in the application has uniform particle size distribution, improved light scattering capacity, low coating viscosity, good coating performance, high surface strength, smoothness, whiteness and opacity of coated paper; the polylactic acid is biodegradable and environment-friendly, and the mechanical strength, wear resistance and thermal stability of the coating are improved.

This utility model relates to the field of water-based pigment paste preparation, and discloses a high-efficiency dispersion device for preparing water-based pigment paste, including a tank body. A pretreatment tank is fixedly connected to the top of the tank body, and a feeding cylinder is fixedly connected to the right side of the pretreatment tank. The bottom of the feeding cylinder is connected to the right side of the pretreatment tank through a connecting pipe. A processing mechanism is provided inside the pretreatment tank. The processing mechanism includes a screw, which is threadedly connected to the inner wall of the pretreatment tank. A pressure plate is rotatably connected to the bottom of the screw, and the pressure plate is slidably connected to the inner wall of the pretreatment tank. In this utility model, the drive motor drives the second extrusion block to rotate relative to the first extrusion block. The serrated extrusion surfaces of the first and second extrusion blocks perform preliminary crushing, extrusion, and dispersion of the raw material. At the same time, the porous structure of the through holes promotes material flow and forms turbulence, accelerating the contact wetting of pigment particles with the dispersion medium.

The invention relates of UV-Vis radiation curable coating compositions comprising magnetic or magnetizable pigment particles and methods for producing optical effect layers (OELs) comprising magnetically oriented magnetic or magnetizable pigment particles and the use of said OELs as anti-counterfeit means on security documents or security articles as well as decorative purposes. The UV-Vis radiation curable coating compositions comprises one or more (meth)acrylate monomers, one or more cyclic ether compounds, one or more vinyl ether compounds, one or more photoinitiators, one or more thermoplastic polymers and non-spherical magnetic or magnetisable pigment particles.

The invention relates to a dispersing agent for water-based color paste and a preparation method of the dispersing agent. According to the dispersing agent containing the hydrophilic and hydrophobic chain segments and capable of being specifically combined with the pigment particles, a polymerization product with narrow molecular weight distribution is obtained based on RAFT polymerization, and the problem that organic pigment is prone to agglomeration in a color paste system is avoided through wrapping of the hydrophobic chain segments of polyether in the structure on the pigment particles; a polyether solvation chain segment is introduced into the structure of the dispersing agent, so that the storage stability of the dispersing agent in a water phase is ensured; the high approximation of the acridone structure and common pigment structures such as quinacridone and isoindolinone ensures the coating effect of the dispersing agent on pigment particles, the dispersing agent has good dispersibility and compatibility in different aqueous systems, a specific dispersion effect is formed, the problems of high viscosity, difficult dispersion and the like of organic pigments in the aqueous systems are effectively solved, and the dispersing agent has good application prospects. The dispersant can be used as a dispersant or an additive of systems such as water-based color paste and water-based ink. The method can be widely used in the fields of inks and paints.

The invention discloses a compound dispersing agent and a preparation method of polypropylene beads using the compound dispersing agent, and the compound dispersing agent contains EBS and Huawang EB-FF. Van der Waals force among pigment particles can be effectively overcome by using the compound dispersant, and the condition of pigment agglomeration is obviously inhibited, so that the conditions of black spots and generation change on the surface of a product are avoided.

The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present invention provides processes for producing optical effect layers (OELs) comprising at least a first motif and a second motif being at least partially adjacent to each other, each of said motifs independently comprising magnetically oriented platelet-shaped magnetic or magnetizable pigment particles.

The present invention relates to a home appliance and a method for driving a panel for the home appliance. The home appliance according to an embodiment of the present invention comprises: a panel assembly that forms the exterior and includes an electrophoretic panel for outputting a set color; and a control unit that provides a voltage input waveform for outputting the set color. The electrophoretic panel includes a pair of electrodes spaced apart from each other; and a microcapsule that is arranged between the electrodes and includes three or more color pigment particles charged to have a positive or negative charge, wherein the control unit is characterized in that the set color is output by a combination of a plurality of pulses that cause voltages of a different magnitude than a previous voltage to be continuously and repeatedly input at intervals of a constant input time (t) within a range between a high voltage (V1) and a low voltage (V2).

The present invention relates to a composition comprising 1) an aqueous dispersion of multistage opacifying polymer particles with a superposing binder layer; 2) a colorant; and 3) inorganic opacifying pigment particles. The composition of the present invention is useful for one coat hide paint formulations.

The present invention relates to the field of magnetic devices, magnetic apparatuses and processes for producing optical effect layers (OEL) comprising magnetically oriented non-spherical magnetic or magnetizable pigment particles on a substrate and providing an optical impression of two or more loop-shaped bodies having their shape and / or size and / or their brightness varying in opposite directions upon tilting the optical effect layer (OEL). In particular, the present invention relates magnetic devices, magnetic apparatuses and processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.

The invention discloses a bio-based nonionic dispersant and a preparation method thereof, and belongs to the field of chemical engineering. According to the preparation method, mandelic acid and fatty alcohol which are biologically sourced are adopted as raw materials, bio-based mandelic acid ester containing a mandelic acid structure is obtained through a simple esterification reaction, then the bio-based mandelic acid ester and ethylene oxide are subjected to a ring-opening polymerization reaction, and the bio-based dispersing agent with a novel structure is obtained. And pigment color paste prepared by using the polycarboxylate superplasticizer as a dispersing agent has the characteristics of small pigment particle size, narrow distribution and good stability, and the polycarboxylate superplasticizer is low in price, easy to obtain, low in potential toxicity and biodegradable.

The invention relates to a coated substrate made of glass or glass ceramic, the coating having pigment particles embedded in a glass matrix, the average layer thickness of the coating being 2 to 5 [mu] m, the transmittance of the coating being at most 2%, the average particle size d50 of the pigment particles being less than 1.0 [mu] m, and the thickness of the coating being at least 10 [mu] m. Wherein the polydispersity index (PI) of the particle size distribution of the pigment particles is at most 2.0.

Provided is a powdered solid cosmetic that has improved dispersibility of surface-treated pigment particles and is excellent in spreadability during use.　The powdered solid cosmetic contains: pigment particles that have been surface-treated using an ester compound of a C8-20 fatty acid and glycerin; an extender pigment; and an oil component containing at least one oil selected from the group consisting of ester oils and hydrocarbon oils.

An inkjet ink for printing durable outdoor images with an inkjet printer includes an basic pH aqueous ink vehicle comprising water, a soluble base, and at least one water soluble organic solvent; a pigment dispersion; and a polymer comprising base neutralized carboxylic acid groups with a glass transition temperature between 0 and 150° C. and an acid number between 50 and 1000 mg KOH / g dissolved in the vehicle, wherein the carboxylic acid groups are base neutralized; a poly-electrophilic functionalized compound capable of crosslinking the neutralized carboxylic acidic groups on the polymer wherein the ratio of the poly-electrophilic groups on the functionalized compound to carboxylic acid groups on the polymer is 1:1 or less on an equivalent basis and the ink maintains a stable viscosity and pigment particle size distribution for 6 weeks at 60° C.; the water in the ink inhibiting the crosslinking reaction until after the ink is printed and the water is substantially removed from the ink by drying.

According to the brand-new environment-friendly pigment red 170 production method, on the basis of a traditional production process, the materials obtained after coupling reaction are subjected to filter pressing and washing, organic impurities and salt are removed, by adding acetic acid, DB-70 can be dissolved more completely, sodium acetate generated through acetic acid and alkali in the subsequent coupling reaction can be used for preparing the pigment red 170, and the pigment red 170 can be obtained. The effect of stabilizing the pH value is achieved; according to the process, pigment particles are subjected to crystal transformation more sufficiently, the crystal form is more stable, the particle size distribution is narrower, the chemical resistance, light resistance, heat resistance and the like of the obtained pigment red 170 are all higher than the industrial standard, and the pigment red 170 is suitable for industrial production. And no forbidden aromatic amine or toxic substance is contained.

Provided are oil-based cosmetic compositions and water-in-oil emulsion cosmetic compositions that ensure the dispersibility of the blended surface-treated pigment particles while inhibiting the exudation of the pigment particles (i.e., excellent oil resistance). One composition, being an oil-based cosmetic composition or a water-in-oil emulsion cosmetic composition, comprises, as an oil phase component, (A) surface-treated pigment particles, (B) a silicone-based film-forming agent, and (C) an oil component, wherein the surface-treated pigment particles are particles surface-treated with an ester compound formed from fatty acids having 8 to 20 carbon atoms and glycerol, and the oil component comprises at least one of volatile oil components and non-volatile oil components.

The utility model discloses a device for separating pigment particles in printing ink products, which comprises a collecting barrel with an open top end, a top cover and a plurality of middle ring mechanisms, the middle ring mechanisms are arranged between the collecting barrel and the top cover in a vertical overlapping mode, the structures of the middle ring mechanisms are the same, and the device relates to the technical field of printing ink processing. According to the device for separating the pigment particles in the ink product, the middle ring mechanism is arranged, when the device runs, a rotating shaft in the middle ring mechanism is driven to rotate through a power structure, and in the rotating process of the rotating shaft, ink located on the upper portion of a filter screen can be continuously pressed through a scraper hinged to the surface of the rotating shaft, so that the downward permeation efficiency of the ink is improved; meanwhile, a device frame is further mounted on the upper surface of the scraping plate, a vibration motor in the device frame can continuously operate, the scraping plate can be driven to vibrate through vibration of the device frame, then the vibration is transmitted to the filter screen, the speed of the printing ink passing through the filter screen can be increased, and the overall filtering efficiency can be greatly improved through synchronization of the device frame and the vibration motor.

This invention relates to a method for preparing a highly adhesive, water-retaining, hyperspectral camouflage coating, belonging to the field of hyperspectral camouflage technology. The method involves preparing a mixed solution by adding water-containing microcapsule particles and monochromatic pigment particles to a polymer resin substrate solution, followed by vacuum degassing, and then applying the film layer onto the substrate using a blade coating method. After curing, the camouflage coating is obtained. The camouflage coating can precisely mimic the visible-near-infrared spectral characteristics of vegetation backgrounds, with a Pearson similarity coefficient of no less than 96% with the target vegetation spectrum. It also possesses excellent water retention properties, stably reproducing the typical water absorption valley spectral characteristics of vegetation. Furthermore, the coating exhibits strong adhesion to the substrate, good environmental adaptability, and high application value.

This application relates to a high-transparency liquid mother-of-pearl paint and its spraying process. The components of the mother-of-pearl paint include: 35-45 parts of aldehyde-ketone resin; 8-15 parts of pearlescent pigment; 0.5-2 parts of phosphate methacrylate; 1-4 parts of polyhedral oligomeric silsesquioxane crosslinking agent; 1-3 parts of additives; and 25-40 parts of solvent. The preparation method of the mother-of-pearl paint includes the following steps: Step 1: Add phosphate methacrylate to the solvent, stir to dissolve, then add the pearlescent pigment, and pre-disperse at 500-800 rpm for 10-20 min to obtain a pre-dispersed slurry of pearlescent pigment. This invention introduces phosphate methacrylate as a reactive dispersant. Its phosphate groups form coordination adsorption with the titanium hydroxyl groups on the surface of the pearlescent pigment. The double bonds of methacrylate participate in the crosslinking and curing of the aldehyde-ketone resin during the baking and film-forming stage, permanently anchoring the pearlescent pigment particles in the paint film network by covalent bonds. This fundamentally solves the problem that in traditional formulations, pearlescent pigments rely solely on physical encapsulation and the particle orientation is difficult to stabilize and fix.