23results about How to "High tinting strength" patented technology

The invention relates to the technical field of pigments, in particular to a high-weather-resistance polymer coated pigment and a preparation method thereof. The method comprises the following steps: treating an organic pigment dispersion liquid by using a polymer monomer and a functional additive to obtain a pigment-polymer monomer miniemulsion; heating and initiating free radical polymerization reaction to obtain a polymer coated pigment emulsion; and then carrying out separation treatment, wherein the functional additive comprises a free radical initiator. According to the method, the organic pigment is coated with a polymer monomer through free radical polymerization reaction of miniemulsion to form a unique microcapsule structure, so that the influence of oxygen, water vapor and a solvent in an external environment can be avoided, and ultraviolet light can be shielded; the separation treatment step enables the polymer coated pigment to have a uniform particle size, so that the polymer coated pigment also has good dispersibility in an oily solvent. The polymer coated pigment has good weather resistance and tinting strength, and is low in chromatic aberration in the aging process.

The invention provides a recycling method for waste tire pyrolysis residues. The recycling method comprises the following steps: S1, firstly carrying out wire drawing on waste tires; s2, the waste tires obtained after wire drawing are put into a crushing unit to be crushed; s3, the crushed waste tires are added into a pyrolysis processor; s4, carrying out water cooling on solid slag generated by pyrolysis of the old tire to obtain a primary carbon black material; s5, mixing the black primary material and a desulfurizing agent according to the mass; s6, washing: adding the crude carbon black into a granulating agent, and washing in a washing solution; s7, granulation: conveying the carbon black slurry into a granulator through a screw conveyor, extruding, forming and discharging; and S8, drying and discharging. S9, compounding the dried and discharged carbon black with water, a water reducing agent and cement; and S10, vibrating, stirring and forming.

The invention relates to the technical field of water-ink, and in particular to a method for preparing a polyurethane water-ink. The method comprises the following raw materials in parts by weight: 70-80 parts of acrylic resin liquid, 30-40 parts of deionized water, 8-10 parts of water-based pigment, 8-10 parts of ethanol, 8-12 parts of functional additives, 5-8 parts of connecting materials, 5-8 parts of wetting agents, 4-6 parts of defoaming agents, 1.2-1.8 parts of activators and 0.3-0.6 parts of drying agents. The invention prepares the functional additives as the main additive of the polyurethane water-ink by mixing modified ethoxylated polyurethane with water-based polyurethane adhesive. The modified ethoxylated polyurethane can form a stable structure in the water-ink, condense inside the polymer to form a three-dimensional network cross-linked structure, improve the cross-linking density of the water-ink structure, improve the density of the surface of the ink layer, and at the same time, produce an adsorption effect on the coating surface through the combination of its groups, so as to effectively improve the adhesion of the water-ink.

The invention discloses a preparation method of a pigment red 254 coloring composition for a color filter, and belongs to the technical field of preparation of pigment coloring compositions. The pigment red 254 is subjected to bromine substitution treatment through bromination reaction, active sites are provided for modification of the acrylate monomer, the pigment is modified by utilizing the acrylate monomer through Heck reaction, pigment molecules are promoted to form solvated chains through modification of the acrylate monomer, and the surface energy of the pigment molecules is effectively reduced; according to the present invention, the affinity of the pigment red 254 in the dispersion medium is significantly improved, the agglomeration phenomenon is reduced, the particle size of the pigment red 254 is effectively reduced, the uniformity and the stability of the coloring composition are ensured, the coloring power of the pigment is improved, and the performance of the pigment in the final product is enhanced. Through the preparation method, the application range of the pigment red 254 is expanded, and the pigment red 254 can be more effectively applied to multiple fields such as color filters and printing ink.

The utility model relates to the field of powder coating processing equipment, and particularly discloses a coating pulverizer which comprises a classifier, the classifier comprises an outer classification wheel shell, a fourth pipeline is embedded in the outer classification wheel shell, an induced draft fan is arranged at the end, away from the outer classification wheel shell, of the fourth pipeline, and a silencer connected with the induced draft fan through a pipeline is arranged on one side of the induced draft fan. A fourth pipeline is arranged at the end, away from the induced draft fan, of the silencer, a bag-type dust collector is arranged at the end, away from the silencer, of the fourth pipeline, a second air lock is arranged below the bag-type dust collector, an electrostatic dust collector is arranged at the end, embedded in the bag-type dust collector, of the fourth pipeline, a third pipeline is embedded in the upper portion of the bag-type dust collector, and a dust collection bag is arranged below the third pipeline; according to the coating pulverizer, the temperature of the classifier is reduced during grinding, so that the fineness and the uniformity of the coating can be remarkably improved, pigments and fillers are distributed more uniformly, the covering power and the tinting strength of the coating are improved, the appearance quality of the coating is improved, the durability and the adhesive force of the coating can be enhanced, and the coating effect is improved.

The invention relates to the field of fluorescent whitening, and discloses a fluorescent whitening composition and a preparation method and application thereof, the fluorescent whitening composition comprises the following components by weight: 30-45 parts of an acrylate emulsion, 5-12 parts of a fluorescent whitening agent, 1-5 parts of a modified additive, and 10-25 parts of deionized water; the fluorescent whitening agent is an aminated nano titanium dioxide grafted modified fluorescent parent, and the modified fluorescent parent is prepared by carrying out a first-step nucleophilic substitution reaction on cyanuric chloride and p-aminobenzene sulfonic acid and then carrying out a second-step nucleophilic substitution reaction on the obtained product and a fluorescent parent 4, 4-diaminostilbene-2, 2-disulfonic acid; according to the invention, the fluorescent whitening agent and the modified additive are added, so that the whiteness of the paper can be improved, the effect of inhibiting the yellowing of the paper is obvious, and the paper is not prone to yellowing. And the tensile strength, the tearability, the water resistance and the aging resistance of the paper can be effectively improved.

The invention discloses high-whiteness sodium aluminum silicate as well as a preparation method and application thereof. The preparation method comprises the following steps: adding an aluminum salt solution and water into a reaction kettle until the pH value is 4-6, stirring and heating to 45-65 DEG C; an aluminum salt solution and a sodium silicate solution are added for a reaction, the pH value is 4-6, the temperature is 45-65 DEG C, and the reaction time is 10-30 min; continuously adding the sodium silicate solution until the pH value is adjusted to 8-10; the sodium silicate solution and the aluminum salt solution are continuously added, the pH value is 8-10, the reaction is carried out for 50-70 min, and aging is carried out after flow merging is finished; adding a sulfuric acid solution, adjusting the pH value to 3.5-4.5, adding a masking agent, and stirring; and carrying out solid-liquid separation, washing, pulping and drying on the solution obtained in the previous step to obtain a high-whiteness sodium aluminum silicate product. The high-whiteness sodium aluminum silicate prepared by the method is high in whiteness and good in dispersity, and has the advantages of being simple in production process, low in cost and capable of realizing large-scale production.

The present invention relates to the technical field of pigment slurry, and in particular to a pigment slurry mixing device and method, including a stirring mixer, an extrusion mixer and an impact mixer, wherein the stirring mixer includes a cylinder, a stirring frame is installed in the cylinder, and the stirring frame is driven by a motor I; the extrusion mixer is connected to the stirring mixer 1 through a conveying pipeline and a pressure pump, the extrusion mixer includes a gear ring cylinder and a gear shaft, and the gear shaft is driven by a motor II; the impact mixer is connected to the extrusion mixer through a conveying pipeline, the impact mixer includes a shell and a jet tube, two jet tubes are installed on both sides of the shell and a collision area is formed between the two jet tubes, and the two jet tubes are connected to a hydraulic pump. The device is used for premixing, extrusion mixing and impact mixing to obtain a slurry with a small and uniform particle size, good dispersion effect and high dispersion rate, thereby improving the coloring power, hiding power, gloss intensity and other properties of the coating.

The invention discloses a color masterbatch with high tinting power and a preparation method thereof, and belongs to the technical field of polymer materials. The color masterbatch raw materials provided by the invention include: 40-50 parts of carrier resin, 5-20 parts of colorant, 8-16 parts of dispersant, 4-5 parts of lubricant and 1-3 parts of antioxidant, and the carrier resin is a polyethylene / EVA resin modified by vermiculite and hydrotalcite. Since the layer plates of vermiculite and hydrotalcite are charged, fully and uniformly mixed and dispersed between different components can be achieved by attracting positive and negative charges, and the porous structure and large specific surface area of ​​the surface of vermiculite and hydrotalcite are utilized to promote the adsorption of dye molecules, so that the prepared color masterbatch has high tinting power and uniform coloring, and at the same time, the addition of vermiculite and hydrotalcite can improve the flame retardant performance of the color masterbatch.

The application belongs to the technical field of functional pigments, and particularly relates to a preparation method of high-light-resistance composite pigments. The preparation method of the application is that: after pretreatment and cleaning, hexagonal boron nitride is obtained to be modified boron nitride nanosheet, and then the modified boron nitride nanosheet is compounded with organic pigments to obtain ideal high-light-resistance composite pigments. The modified boron nitride nanosheet used in the application can be better combined with the organic pigments by using the principle of entropy increase, the rich electron boron-nitrogen plane of the hexagonal boron nitride and the aromatic conjugated system of the lithol red molecules produce pi-pi stacking interaction, and then the two are driven to self-assemble to form high-light-resistance composite pigments, and the high-light-resistance composite pigments form a structure that is compact. The high-light-resistance composite pigments obtained by the application still maintain the chemical structure and gloss of the original organic pigments, and have excellent stability and good light resistance, and the problem of poor light resistance of the organic pigments is solved.

The invention belongs to the technical field of polymers and functional coatings, and discloses a high-adhesion water-based ink resin emulsion and a preparation method thereof. The preparation method comprises the following steps: emulsifying styrene and (methyl) acrylate monomers to obtain a core layer monomer emulsion; the preparation method comprises the following steps: carrying out ring-opening addition reaction on a cyclodextrin compound and allyl epoxy-terminated polyether under an alkaline condition to obtain an allyl polyether modified cyclodextrin compound cross-linking agent; emulsifying a (methyl) acrylate monomer, a (methyl) acrylic acid monomer and an allyl polyether modified cyclodextrin compound cross-linking agent to obtain a shell layer monomer emulsion; and carrying out multiple initiation polymerization on the core layer monomer emulsion and the shell layer monomer emulsion to obtain the high-adhesion water-based ink resin emulsion. The water-based ink resin emulsion disclosed by the invention is subjected to crosslinking modification by adopting a specific cyclodextrin compound crosslinking agent, so that the adhesive force and the water resistance are remarkably improved, and the tinting strength of the obtained water-based ink can be improved.

The invention discloses a disperse dye embroidery-imitating printing process for acetate fiber fabric, which comprises the following steps: printing and steaming the acetate fiber fabric with a printing dye, washing with water, and setting at high temperature to obtain the embroidery-imitating printed acetate fiber fabric. The hydroxyl group can form a hydrogen bond with hydroxyl oxygen on acetate fiber acetoxy, the cyano group is a strong polar group and can interact with ester group polarity of acetate fiber, meanwhile, the modified dye molecule contains a large number of azo groups, the saturation degree and tinting strength of the dye can be improved, meanwhile, the modified dye molecule contains an organic silicon chain segment, the hydrophobicity of the dye can be improved, and the dye can be used for dye dyeing. And after multiple times of washing, the dye on the surface does not fade and fall off, and meanwhile, the film layer can be endowed with soft and smooth characteristics, so that the printed part is softer and is closer to the touch feeling of high-quality embroidery.

The invention relates to the technical field of pigments, and discloses a method for preparing a cobalt green pigment, comprising the following steps: (1) adding a cobalt source, a zinc source, a chromium source and neodymium oxide into water, stirring and mixing to obtain a mixed metal solution, then adding polyethylene glycol and ethylene glycol amine, stirring and mixing, and adjusting the pH to alkaline to obtain a mixed solution; (2) transferring the mixed solution obtained in step (1) into a closed reactor, performing a hydrothermal reaction, cooling, filtering, washing the filter residue with water, and freeze-drying to obtain a cobalt green pigment precursor; (3) subjecting the cobalt green pigment precursor obtained in step (2) to ball milling treatment, calcining under a protective atmosphere, and cooling to obtain a cobalt green pigment. The cobalt green pigment obtained by the method of the invention has a small average particle size, good heat resistance, solvent resistance, and weather resistance, good dispersibility and tinting strength, bright and lasting color, good stability, low energy consumption, simple process, and is suitable for industrial production.

The invention relates to flexographic printing ink for cigarette wrapping paper and a preparation method of the flexographic printing ink, and the flexographic printing ink comprises the following components in parts by weight: 45-65 parts of urethane acrylate, 15-30 parts of 1, 3-propanediol, 1-3 parts of a curing agent, 1-3 parts of a defoaming agent and 1-3 parts The invention relates to a light-cured acrylic resin, which is prepared from the following components in parts by weight: 10 to 20 parts of 1, 6-hexanediol diacrylate, 10 to 20 parts of 2-phenoxyethyl acrylate, 8 to 16 parts of lauric acid methacrylate, 5 to 20 parts of filling modifier, 0.1 to 10 parts of pigment, 0.1 to 1 part of dispersing agent, 0.1 to 1 part of defoaming agent and 3.1 to 6.2 parts of photoinitiator. The UV flexible ink prepared by the invention not only has excellent glossiness, but also has higher surface hardness, wear resistance and adhesive force than the traditional UV ink, and is very suitable for printing on high-end cigarette packaging paper.

The invention discloses a color master batch with high tinting strength and a preparation method thereof, and belongs to the technical field of high polymer materials, the color master batch provided by the invention comprises the following raw materials: 40-50 parts of carrier resin, 5-20 parts of a coloring agent, 8-16 parts of a dispersant, 4-5 parts of a lubricant and 1-3 parts of an antioxidant, and the carrier resin is vermiculite and hydrotalcite modified polyethylene / EVA resin. Due to the fact that laminates of the vermiculite and the hydrotalcite are charged, the different components can be fully and evenly mixed and dispersed through attraction of positive and negative charges, adsorption of dye molecules is promoted through porous structures and large specific surface areas of the surfaces of the vermiculite and the hydrotalcite, the prepared color master batch has the advantages of being high in tinting strength and even in coloring, and meanwhile, the color master batch is good in color fastness. The vermiculite and the hydrotalcite are added, so that the flame retardant property of the color master batch can be improved.

The invention belongs to the technical field of printing ink, and particularly relates to thermosensitive transfer printing ink as well as a preparation method and application thereof. The modified ferroferric oxide composite material and the carboxylated kaolin are matched with other components to obtain the mixed filler, and meanwhile, the silicon-containing phenolic resin is introduced into a polymer system, so that the tinting strength and adhesion fastness of the ink are effectively improved, and good initial dryness is ensured.

The invention belongs to the technical field of pigment production, and particularly relates to a high-color-intensity organic pigment production process which comprises the specific steps of pigment slurry preparation, composite slurry preparation, pigmentation treatment, filter pressing, washing and high-color-intensity organic pigment preparation. According to the production process, the organic pigment filter cake is beaten and then combined with bismuth oxychloride, the polarity of the organic pigment can be effectively changed, the dispersity is improved, a natural barrier is formed for the organic pigment, the coloring power of the organic pigment is improved, meanwhile, the hydrolysis reagent triethanolamine is added to act together with bismuth oxychloride, and the organic pigment with the small and stable particle size is prepared. The organic pigment is easy to dye functional chemical fibers, two solvents of DMF and NMP are used in a mixed mode in the pigmentation stage, organic pigment particles can be better dispersed, and the pigmentation treatment efficiency is improved. The production process of the high-color-intensity organic pigment is short in time, high in efficiency, green, environmentally friendly and suitable for various organic pigments.

The invention belongs to the technical field of food additives, and particularly relates to a preparation method of a natural plant pigment composition and application of the natural plant pigment composition in food. The preparation method comprises the following steps: S1, dissolving a natural plant pigment in water to obtain a natural plant pigment solution, adjusting the pH value of the natural plant pigment solution to 7-8, then adding cyclodextrin, uniformly stirring, continuously stirring, and standing after stirring to obtain a solution I; s2, sequentially adding spirulina peptidoglycan and polyamino acid into the obtained solution I, uniformly mixing, stirring, adding halide salt after stirring, continuously stirring, standing after stirring, centrifuging, mixing an obtained solid product with edible auxiliary materials, and freeze-drying to obtain the natural plant pigment composition. The raw materials used in the invention are food-grade, safe and harmless, and can be used in food dyeing and coloring, endow food and beverage products with saturated and uniform colors, and improve the brilliance of food.

The invention relates to the technical field of organic pigment production, and in particular to a method for producing an organic pigment suitable for PP spinning. In view of the fact that the existing organic pigment production technology has deviations in the pigment hue and tinting power detected by the inspection method used in the production process, and no effective information is fed back to the pigment production process when the customer judges the color of the pigment, resulting in a disconnection in the supply chain, the following scheme is proposed, which includes the following steps: S1: method establishment, S2: sampling measurement, S3: pigment adjustment, S4: real-time observation. The purpose of the invention is to make the pigment color presented by the prepared PP color sheet similar to the color presented by the PP fiber by means of injection molding first and then tableting, thereby solving the color judgment problem. At the same time, the amount of rosin used just meets the balance requirements of dispersibility and hiding power, and the addition of strontium chloride and calcium chloride improves the heat resistance and tinting power of the pigment, thereby reducing the production cost of the pigment.

The invention discloses a high-performance water-based fluorocarbon coating and a preparation method thereof. According to the baking varnish, the modified fluorocarbon resin, the methylated melamine formaldehyde resin and the blocked isocyanate are subjected to cross-linking curing, and the adhesion promoter and other auxiliaries are added, so that the high-performance water-based fluorocarbon coating with excellent adhesion, high weather resistance, high hardness, wear resistance, boiling water boiling resistance and stain resistance is obtained. The invention further provides a preparation method of the high-performance water-based fluorocarbon coating.

The invention relates to the technical field of titanium dioxide preparation, and particularly discloses a high-brightness white anatase titanium dioxide pigment and a preparation method thereof. The preparation method comprises the following steps: adding titanyl sulfate into water at the temperature of 60-65 DEG C, heating to 95-97 DEG C at the speed of 2.3-3.5 DEG C / min for hydrolysis, adjusting the pH value of a system to 2.2-2.4 in the hydrolysis process, then adding anatase seed crystals, and filtering to remove filtrate after the hydrolysis reaction is finished, so as to obtain titanium metasulfate; adding titanium metaacid into water for pulping dispersion, and adding a reducing agent in the pulping process; performing sulfuric acid pickling and drying to obtain a crude product; blending, grinding and screening the crude product and a modifier to obtain a modified crude product; and carrying out air jet pulverization on the modified crude product and metal salt to obtain the product. According to the preparation method of the high-brightness white anatase titanium dioxide pigment, the product has higher whiteness, stability and tinting strength and is more suitable for being used in a plastic system.

The invention relates to the field of ink, in particular to water-based ink for cigarette packet paper and a preparation method of the water-based ink. Comprising 22-46 parts of a water-based acrylic emulsion, 15-27 parts of a water-based polyurethane acrylate emulsion, 8-16 parts of a modified filler, 1-10 parts of a pigment, 0.2-2 parts of a dispersant, 0.1-1 part of a defoaming agent, 0.5-1.5 parts of a leveling agent, 2-6 parts of a coalescing agent and 15-30 parts of deionized water. The modified filler is introduced into the water-based ink, so that the water-based ink not only has better glossiness and tinting strength than traditional filler, but also has better light fastness, the color of the ink is more beautiful, the texture performance is stronger, and the printing attractiveness is greatly enhanced.

The invention provides a dry powder type reflective blue pigment and a preparation method thereof. The preparation method comprises the following steps: (1) adding an alkaline solution into an aqueous solution containing a reflex blue crude product filter cake to adjust the pH value to be greater than or equal to 12, stirring and heating, then adding an anionic auxiliary agent and a nonionic auxiliary agent, heating to a boiling state, and fully dissolving the reflex blue crude product filter cake to obtain a mixed solution; (2) under a stirring condition, adding an acidic solution into the mixed solution to adjust the pH value to be less than or equal to 2, and stirring for 15 minutes to completely separate out the reflective blue to obtain a suspension; and (3) adding an emulsifier into the turbid liquid, stirring for 30 minutes, cooling to 70 DEG C, filtering, washing with water to be neutral, and drying to obtain the dry powder type reflective blue pigment. According to the invention, the specific surfactant is added by stages, so that aggregation of pigment particles can be effectively prevented, and the dry powder type soft reflective blue pigment can be prepared by directly drying, so that the dry powder type soft reflective blue pigment is convenient to transport and has excellent dispersity and tinting strength in an application medium.