46 results about "Pigment dispersion" 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.

A three-dimensional printing kit includes a substantially colorless fusing agent and a color assist agent. The fusing agent includes a liquid vehicle including water, a co-solvent, and an amino acid stabilizer. The fusing agent further includes an infrared (IR) absorbing pigment dispersion including an IR absorbing pigment present in an amount ranging from about 0.01 wt % active to about 1.6 wt % active, based on a total weight of the fusing agent. The color assist agent includes a liquid vehicle including water and a plasticizing co-solvent, and a dye dissolved in the liquid vehicle. Also disclosed is a method of making a colored 3D printed object.

To provide an inkjet ink that achieves both high image density and excellent storage stability. [Solution] The inkjet ink contains a pigment, a pigment-coating resin, a hydrophobic solvent with a LogP of 0.03 to 0.51, and water. In the above inkjet ink, the ratio of the pigment-coating resin content to the pigment content is 8.0% by mass to 12% by mass. In the above inkjet ink, the hydrophobic solvent content is 10% by mass to 30% by mass. In the above inkjet ink, the average particle size of the pigment dispersion composed of the pigment and the pigment-coating resin when diluted 100 times by mass with a mixed solution of 50 parts by mass of the hydrophobic solvent and 50 parts by mass of water is 618 nm or more.

The application relates to the field of color paste, in particular to a silicone leather color paste and a preparation method thereof. The silicone leather color paste comprises the following raw materials in mass parts: 55-75 parts of film-forming resin, 10-30 parts of colorant, 9-15 parts of combined reinforcing agent, 3-6 parts of dispersing agent, 3-10 parts of filler, 2-4 parts of wetting agent, 3-10 parts of water, 2-10 parts of thickening agent, 0.3-0.5 parts of defoaming agent, 0.2-0.4 parts of ultraviolet absorber and 5-10 parts of polymeric emulsion. The finally prepared color paste material has excellent pigment dispersibility and compatibility with a silicone matrix, can avoid the use of organic solvents, avoid greater environmental problems, can finally maintain good stability and storage performance and the like, the comprehensive performance is greatly improved, and the higher application performance requirement of the silicone leather for the color paste can be effectively met.

This utility model relates to the field of paint production technology, specifically to a vibrating mixer. It includes a casing, control panel, protective door, and auxiliary mechanisms. The auxiliary mechanisms include a lower support, a moving plate, an upper support, a spring, a vibrator, a round rod, an ear plate, a threaded block, a storage tank, a stirring motor, a rotating shaft, an arc-shaped stirring rod, a feeding device, and a discharging device. Solid pigment and aqueous solution are added to the storage tank. The protective door is closed, and the vibrator is activated. The vibrator, in conjunction with the lower support, upper support, spring, round rod, and threaded block, enables the moving plate to move vertically back and forth, causing the pigment in the storage tank to vibrate and accelerate pigment dispersion. Furthermore, the arc-shaped stirring rod design allows the pigment to be stirred and vibrated simultaneously. This solves the problem that existing pigment stirring devices mostly only stir within a mixing tank, failing to fully mix the pigment, resulting in poor stirring effects and inaccurate subsequent test data.

To provide a photosensitive resin composition for black resist that can reduce the reflectivity of the glass substrate side of the black resist, suppress aggregated foreign matter, and improve adhesion to the substrate after patterning, and a method for manufacturing the photosensitive resin composition. [Solution] The photosensitive resin composition for black resist comprises (A) an unsaturated group-containing photosensitive resin, (B) a photopolymerizable compound having at least two or more unsaturated bonds, (C) a photopolymerization initiator, (D) a pigment disperse containing at least one light-shielding component selected from the group consisting of black pigments, mixed color pigments and light-shielding materials, (E) a silica disperse containing silica particles, and (F) a solvent, wherein component (A) includes component (A1) having a specific structure, a portion of component (A1) is included dissolved in component (F), and a portion of component (A1) is included in component (D).

The application discloses a kind of based on big data's lacquer piece product whole process traceability management method, belong to traceability management technical field, specifically include: input production instruction number including coating batch code and curing oven number;Retrieve resin characteristic peak sequence and pigment dispersity numerical value corresponding to coating batch code;With production instruction number as root node, build curing traceability chain, and the curing oven number, resin characteristic peak sequence and pigment dispersity numerical value are connected to root node;When lacquer film adhesion is lower than standard threshold, locate to resin characteristic peak sequence and pigment dispersity numerical value;Resin characteristic peak sequence is compared with standard library to generate peak deviation mark, and pigment dispersity numerical value is compared with standard interval to generate degree deviation mark, and original curing oven temperature curve is corrected according to the two;Output curing traceability atlas with peak deviation mark and degree deviation mark.The application realizes the closed loop traceability of coating characteristic quantization and process correction.

The present disclosure pertains to the phakic refractive lenses such as toric lenses, an advanced posterior chamber floating phakic refractive lens (PRL) designed for the correction of severe refractive errors, including myopia, hyperopia, and astigmatism. This innovative lens can reduce or minimize complications commonly associated with traditional phakic intraocular lenses, such as intraocular pressure elevation, cataract formation, and iris pigment dispersion. The phakic refractive lenses such as the toric lenses described herein feature a buoyant, flexible structure with a central aperture to facilitate aqueous humor flow, creating a natural centering force that stabilizes the lens within the pupillary space.

The application relates to the field of pigment testing technology and discloses a pigment dispersibility testing device for drawing, which comprises a premixing box, a material scattering assembly, a mixing disc and a reciprocating moving mechanism. First notches are formed in the side wall of the premixing box, and second notches are formed in the top of the premixing box. The first notches and the second notches are arranged along the length direction of the premixing box. The material scattering assembly comprises a sliding seat, a material containing part, a material conveying pipe, a material scattering cylinder, a gear and a rack. The mixing disc is arranged in the premixing box and located below the material scattering cylinder. The two ends of the mixing disc are slidably connected with the first notches through sliding blocks. The reciprocating moving mechanism has a moving end which can move reciprocally along the horizontal direction, and the moving end is connected with the sliding seat and the sliding blocks. The material scattering cylinder which can move reciprocally along the horizontal direction and rotate at the same time can realize material scattering while rotating and moving, so that the material is prevented from accumulating at one place. The mixing disc which can move reciprocally along the horizontal direction can receive the powder and shake to uniformly mix the powder, so that the material is prevented from being dispersed unevenly.

The application discloses a kind of anti-fake magnetic optically variable ink and preparation method thereof, it is related to ink technical field.The magnetic optically variable ink of the application includes the following mass parts raw materials: water-based polyurethane 40-45 parts, water-based silicone modified acrylic resin 10-12 parts, polyethylene wax 2.2-2.5 parts, glycerol 3-3.5 parts, leveling agent 0.6-0.8 parts, defoaming agent 0.3-0.5 parts, bismuth neodecanoate 0.05-0.07 parts, deionized water 10 parts, pigment dispersion liquid 27-31 parts.The pigment dispersion liquid is prepared from deionized water, modified magnetic optically variable pigment.The introduction of raw materials such as modified magnetic optically variable pigment in the application simultaneously improves the adhesion, wear resistance, optically variable effect, aging resistance, weather resistance and medium resistance of the high-insulation anti-fake magnetic optically variable ink.Therefore, the application has a more extensive application prospect.

One embodiment of the present invention provides a pigment composition that contains: (A) C.I. Pigment Yellow 185; (B) a compound represented by general formula (i); and (C) a sulfonic acid metal salt which comprises a cationic moiety and an anionic moiety, wherein the cationic moiety contains a metal ion and the anionic moiety contains a structure represented by general formula (ii).

Provided is an ink composition that is excellent in bleed prevention and wiping resistance and is suitable for industrial production. The present invention relates to a composite coloring particle including a resin particle having a positive charge on the surface of the particle and a pigment particle having a negative charge on the surface of the particle, the aforementioned resin particle and the aforementioned pigment particle being complexed by electrostatic interaction, and an aqueous ink composition in which the aforementioned composite coloring particle is dispersed in an aqueous medium, and a writing instrument equipped with the aforementioned aqueous ink composition. Furthermore, the present invention relates to a method for producing a composite coloring particle, including a complexing step of mixing a resin emulsion including a resin particle having a positive charge on the surface of the particle and a pigment dispersion including a pigment particle having a negative charge on the surface of the particle.

This invention belongs to the field of pigment dispersion technology, specifically relating to a pre-dispersed pigment, its preparation method, and its application. The invention provides a method for preparing a pre-dispersed pigment, comprising the following steps: sequentially stirring, mixing, and grinding a pigment, a polymeric wax, and stearic acid to obtain the pre-dispersed pigment; the polymeric wax has a molecular weight of 10,000 to 30,000, a melting point of 100 to 150°C, and a viscosity of 200 to 500 cps; the pigment has a particle size (D97) not exceeding 25 μm, an oil absorption of not more than 50%, and an electrical conductivity not exceeding 60 μS / cm. The method provided by this invention can reduce the wax content in the pre-dispersed pigment and further improve the dispersion effect of the pigment in subsequent applications.

This invention relates to the field of cosmetic technology and discloses a method for preparing an anti-agglomeration hydrophobic pigment and the pigment itself. The preparation method includes: activating an inorganic pigment to prepare a pigment dispersion; dissolving a first modifier in an organic solvent to obtain a first modified dispersion, wherein the first modifier is isopropoxytitanium triisostearate; mixing the first modified dispersion with the pigment dispersion and removing the organic solvent to obtain a primary modified wet filter cake; dissolving a second modifier in an organic solvent to obtain a second modified dispersion, redispersing the primary modified wet filter cake and mixing it with the second modified dispersion, removing the solvent to obtain a secondary modified wet filter cake; dissolving a third modifier in an organic solvent to obtain a third modified dispersion, mixing it with the secondary modified wet filter cake, and finally removing the organic solvent and drying to obtain the modified inorganic pigment. This invention effectively improves the anti-agglomeration properties and dispersion stability of the pigment through a three-step synergistic modification.

There is provided a pigment dispersion in which biomass-derived carbon black is finely dispersed at a high level, the pigment dispersion making it possible to prepare an aqueous inkjet ink that can record a high-density image having excellent color developability and glossiness and that has excellent ejection stability. The pigment dispersion is a pigment dispersion to be used for preparing an aqueous inkjet ink, the pigment dispersion containing a pigment, a dispersant, a water-soluble organic solvent, and water. The pigment is biomass-derived carbon black having a number average particle size of 80 to 300 nm in a state of being dispersed in the pigment dispersion, the dispersant is a polymer at least part of carboxy groups of which are neutralized with an alkali, the polymer contains a constituent unit (i) derived from a (meth)acrylic acid or the like and a constituent unit (ii) derived from a biomass-derived (meth)acrylate, the polymer has an acid value of 50 to 150 mgKOH / g, and the biomass-derived (meth)acrylate contains isobornyl (meth)acrylate and the like.

The present invention provides an aqueous pigment dispersion that does not result in a decrease in print quality due to white streaks or color unevenness when printed on coated paper, and that has good abrasion resistance, as well as an aqueous ink containing the aqueous pigment dispersion. [Solution] An aqueous pigment dispersion comprising a pigment and a polymer dispersant, wherein the polymer dispersant contains a polymer comprising one or more constituent units (A) selected from the group consisting of hydrocarbon compounds having vinyl groups and alkyl (meth)acrylates, a constituent unit (B) derived from a sulfonic acid having a polymerizable unsaturated group, and a constituent unit (C) derived from a carboxylic acid having a polymerizable unsaturated group, and at least a portion of the carboxyl groups of the polymer are crosslinked by a crosslinking agent.

To provide a pigment dispersion composition for a black matrix capable of forming a black matrix without a decrease in surface resistance value even after post-baking at high temperature for a long period of time, and capable of obtaining a resist composition for a black matrix in which break points do not change during a storage time.SOLUTION: A pigment dispersion composition for a black matrices comprises a black colorant, a sulfonated copper phthalocyanine, and an epoxy compound, where the epoxy compound is at least one selected from the group consisting of (Formula 1) to (Formula 7).SELECTED DRAWING: None

The present invention relates to an inkjet ink composition, a recording method, an ink set, a pigment dispersion liquid, and provides an inkjet ink composition excellent in storage stability, ejection stability, clogging recovery, and rub resistance. The inkjet ink composition as a water-based ink contains a pigment which is a biogenic carbon black and a solvent, the pigment being a resin-dispersed pigment dispersed by a crosslinked resin, and the solvent including water.

This invention discloses a pigment-based neutral red ink, its preparation method, and its applications. The pigment-based neutral red ink, by mass percentage, comprises the following components: 2-10% red organic pigment, 0.5-7% dispersant, 5-25% humectant, 0.05-0.2% polyvinylpyrrolidone, 1-10% penetrant, 0.1-1.5% preservative, 0.1-4% pH adjuster, 0.1-0.5% defoamer, and the balance deionized water. This invention's pigment-based neutral red ink solves the technical problem of easy sedimentation of red pigments through ultra-fine pigment dispersion and the combination of stabilizers, allowing the ink to remain stationary for extended periods without separation. Furthermore, the use of a special humectant combination ensures that the ink does not dry out at the pen tip without affecting its quick-drying performance; the ink exhibits excellent rheological properties, writes smoothly without clogging the pen, and has high color vibrancy. The formulation of this invention is environmentally friendly, primarily using water as a solvent, reducing the use of volatile organic compounds.

A composition is provided that improves the dispersion stability and the photoelectric conversion efficiency of a photoelectric conversion element using the composition. The composition according to the invention comprises: a pigment as a cyclic conjugated compound in which a plurality of pyrrole rings are linked by conjugated bonds; a dispersant; a resin; and a solvent. The composition is characterized in that the dispersant is a calixarene compound represented by formula [A], and the mass of the dispersant in the composition is more than 0.20 times the mass of the resin in the composition.

The application relates to the technical field of cellulose, and discloses a preparation method of modified cellulose and application of the modified cellulose in a pigment dispersant. Chlorinated cellulose, N, N, N', N'-tetra (2-cyanoethyl) ethylenediamine and alkyl chloride are reacted, and then hydrolysis is continuously carried out to obtain modified cellulose. The modified cellulose contains hydrophilic quaternary ammonium salt and a large amount of carboxylate groups, so that the cellulose has strong hydrophilicity and water solubility, a long hydrophobic carbon chain is introduced, the modified cellulose has unique amphiphilicity, the surface tension of the aqueous solution is low, and the surface activity is high. The modified cellulose can be used as a pigment dispersant, a large amount of carboxylate groups can form interaction with the surface of titanium dioxide and other pigments, the cellulose molecular chain and the long carbon chain are used as solvation chains, a good steric hindrance effect is achieved, the particle diameter of titanium dioxide and other art pigments is remarkably reduced, and good dispersibility is achieved.

The present invention provides a spun-dyed polyimide fiber, and a preparation method therefor and the use thereof. The fiber comprises an organic or inorganic pigment, and the content of the pigment is 0.2-10 wt% of the total mass of the polyimide fiber; in the same roll of spun-dyed polyimide fiber, the maximum color difference in four randomly selected points is less than or equal to 2. The preparation method comprises the following steps: firstly mixing a dried organic or inorganic pigment with a surfactant, then adding a proper amount of a solvent, dispersing same to prepare a dispersion containing pigment particles, respectively conveying a defoamed polyamide acid spinning solution and the dispersion of pigment to a feeding inlet of a dynamic mixer via a pipeline under the pushing of a metering pump, mixing same in the dynamic mixer, and obtaining the spun-dyed polyimide fiber by using a wet / dry-wet spinning process. The production process of the present invention adopts spun-dyeing, which offers the advantages of good color uniformity and high color fastness. Furthermore, the method has a simple process and low production costs.

The application belongs to the technical field of ink, and particularly relates to a preparation method of a photosensitive color-changing ink, comprising the following steps: adding modified photosensitive color-changing pigments, dispersants, defoaming agents, water-based polyurethane, thickening agents, leveling agents and cosolvents into water in sequence to obtain the photosensitive color-changing ink, and providing the mass ratio of the photosensitive color-changing ink. The application solves the defects of the existing photo-variable ink, utilizes the transparency and stability of the modified photosensitive color-changing pigments, thickening agents and defoaming agents to form stable light transfer, directly acts on the modified photosensitive color-changing pigments, and simultaneously, the photoelectric response of zinc oxide and the color-changing system of polyaniline form a synergistic photosensitive color-changing effect, so that a specific photosensitive color-changing ink is obtained.

The present invention provides an aqueous pigment dispersion that does not result in a decrease in print quality due to white streaks or color unevenness when printed on coated paper, and that has good abrasion resistance, as well as an aqueous ink containing the aqueous pigment dispersion. [Solution] An aqueous pigment dispersion comprising a pigment and a polymer dispersant, wherein the polymer dispersant contains a polymer comprising a structural unit (A) derived from an alkyl (meth)acrylate, a structural unit (B) derived from a sulfonic acid having a polymerizable unsaturated group, and a structural unit (C) derived from a carboxylic acid having a polymerizable unsaturated group, and the alkyl group of the alkyl (meth)acrylate is a linear, branched, or alicyclic alkyl group having 5 to 24 carbon atoms.

This invention provides a T-type twin-tailed amphiphilic compound, its preparation method, and its applications, relating to the field of polymer materials technology. The T-type twin-tailed amphiphilic compound has the structure shown in general formula (I). Its synthesis method includes: preparing a dimer containing hydrophobic blocks and isocyanate ends; reacting the dimer with a capping agent to obtain a dimer intermediate; and subjecting the secondary hydroxyl group at the center of the dimer intermediate to an addition reaction with ethylene oxide, propylene oxide, or a mixture thereof to form a hydrophilic block. It can be used as a dispersant in the preparation of coatings, inks, plastic masterbatches, or cosmetics. The T-type twin-tailed amphiphilic compound provided by this invention can be used as a dispersant for organic pigments and inks in the coatings industry. Pigment dispersion formulations using this structure exhibit good dispersibility, uniform color distribution, small particle size, strong anti-flocculation ability, and significantly improved tinting strength and film-forming quality in practical applications.

An aqueous inkjet ink according to the present invention comprises: pigment particles including a pigment and a pigment dispersion resin coating at least a portion of the surface of the pigment; an acetylenediol-based surfactant (B-1) having a measured HLB value of 6-9; a siloxane-based surfactant (B-2); an alkanediol having 3 or 4 carbon atoms; an alkanediol having 5-8 carbon atoms; and a glycol ether having 4-10 carbon atoms. The pigment dispersion resin includes a crosslinked product of a polymer (A-1) having an aromatic ring and an acid group and an acid value of 50-160 mg KOH / g, and a compound (A-2) having multiple glycidyl ether groups in one molecule. The blended amount of compound (A-2) is such that glycidyl group content is 50-200 mol%.

The present invention provides a solvent type pigment dispersion composition containing a resin having good compatibility with various pigment dispersion pastes and / or various resins, and further provides a high concentration solvent type pigment dispersion composition. A solvent type pigment dispersion composition containing a branched polyester (A) containing, as a constituent component, a component containing a polyol (a1) having 3 or more reactive functional groups, a dicarboxylic acid and / or a dicarboxylic anhydride (a2), and a mono-epoxide having a long chain hydrocarbon group (a3), a pigment dispersing resin (B), a pigment (C), and an organic solvent (D).

The present invention addresses the problem of providing a photosensitive resin composition for a black resist, which can reduce the reflectivity of the black resist on the glass substrate side, suppress the aggregation of foreign matters, and improve the adhesion to the substrate after patterning, and also providing a method for producing the photosensitive resin composition, a light-shielding film, an optical filter, a touch panel, and a display device. The photosensitive resin composition for a black resist contains (A) a photosensitive resin containing an unsaturated group; (B) a photopolymerizable compound having at least two unsaturated bonds; (C) a photopolymerization initiator; (D) a pigment dispersoid containing at least one light-blocking component selected from the group consisting of a black pigment, a mixed color pigment, and a light-blocking material; (E) a silica dispersoid containing silica particles; and (F) a solvent. The component (A) contains a component (A1) having a specific structure, a part of the component (A1) is contained in a state of being dissolved in the component (F), and a part of the component (A1) is contained in the component (D).

This invention discloses a water-soluble fertilizer coloring method that enhances the coloring process, belonging to the field of water-soluble fertilizers. The method includes the following steps: S1, adding glycerol, fatty alcohol polyoxyethylene ether, dimethyl sulfoxide, and pure water to a stirring container and starting stirring to obtain a mixed solvent; S2, adding sodium lignosulfonate to the mixed solvent and continuing stirring until the sodium lignosulfonate is completely dissolved to obtain a dispersion; S3, adding potassium pyrophosphate to the dispersion and continuing stirring until the potassium pyrophosphate is completely dissolved to form a mixed solution one, adjusting the pH to form a stable system solution; S4, slowly adding a water-soluble pigment to the stable system solution and continuing stirring to obtain a colorant; S5, mixing the colorant from S4 with fertilizer, wherein the weight of the colorant is 1%~10% of the fertilizer weight, and continuing stirring to obtain a water-soluble fertilizer product. This invention completes coloring solely through material mixing. After coloring, it can significantly improve fertilizer nutrient utilization, enhance crop stress resistance, and also help improve pigment dispersibility and the binding effect between the colorant and fertilizer.

The application provides a polyurethane ink resin and a preparation method and application thereof, and the polyurethane ink resin is prepared from raw materials including the following components by mass: 18-34 parts of polyester polyol, 2-8 parts of isocyanate, 0.3-6 parts of amine chain extender, and 0.05-5 parts of end-capping agent; the polyester polyol is prepared by polycondensation of dihydric alcohol and diacid; and the dihydric alcohol includes dimeric alcohol. In the polyurethane ink resin, the dihydric alcohol for preparing the polyester polyol includes dimeric alcohol; the dimeric alcohol is a macromolecule and usually contains a non-polar segment; the molecular polarity of the polyurethane ink resin can be changed, the polarity difference between the polyurethane ink resin and solvent-free glue is increased, the structural similarity between the polyurethane ink resin and the solvent-free glue is reduced, the ink resistance of the polyurethane ink resin to the solvent-free glue is improved, and then the pigment dispersibility, hiding property and adhesion to a substrate of the ink can be improved.