76results about How to "High color strength" patented technology

The invention provides a reversible thermochromic microcapsule. The reversible thermochromic microcapsule comprises a core material and a wall material, wherein the core material comprises 3-6 parts by weight of first leuco dye, 0.3-0.4 part by weight of second leuco dye, 6-7 parts by weight of color developing agent and 30-40 parts by weight of ester compound by weight, wherein the first leuco dye is a fluorane dye, phenyl indolyl aza-2-benzofuraone, phenyl indolyl phthalide or phenyl aza-phthalide; the second leuco dye is a leuco dye with the melting point of 80-100 DEG C; the color developing agent is a mixture of bisphenol F and phthalimide; and the wall material is a wall system formed by a styrene-maleic anhydride copolymer and a urea formaldehyde resin prepolymer. The invention further provides a preparation method for the reversible thermochromic microcapsule. Due to the adoption of the compounded leuco dyes, the color development intensity of the microcapsule can be improved and the usage amount of the microcapsule in an ink can be reduced; and due to the adoption of the compounded color developing agent, the price is lower and the popularization is facilitated.

The invention relates to the technical field of ceramic tiles, and in particular relates to a wide-color-gamut inkjet glaze decorated ceramic floor tile and a production process thereof. A floor tile billet comprises the following components in parts by weight: 40-75 parts of a cooked porcelain material, 0-38 parts of porcelain stone, 20-30 parts of clay and 0-5 parts of a mineralizing agent; and a production method comprises the following steps: firstly performing conventional processes such as wet-process ball-milling, spray drying and dry-pressing molding on architectural ceramics to prepare a billet, by taking titanium series engobe as a ground glaze, combining engobe with a low-temperature ink-jet ink composition of interior wall tiles to perform inkjet decoration, and performing firing in a roller hearth kiln under the conditions that the firing temperature is 1030-1100 DEG C and the firing cycle is 35-60min to prepare a finished product, wherein the water absorption rate of the finished product is 0-3%, and the quality of the product can meet the national standard requirements. The wide-color-gamut inkjet glaze decorated ceramic floor tile disclosed by the invention has the beneficial effects that energy conservation and emission reduction can be achieved, and the firing temperature can be reduced by 50-100 DEG C compared with that of the same category of products; the technology bottleneck that titanium series opacified engobe can be yellowed when being applied in the floor tiles in a conventional high-temperature process can be effectively solved; and the color gamut range of an inkjet decorative layer of a glaze decorated ceramic tile can be significantly broadened.

The invention refers to a flexographic printing process with wet on wet capability based on controlled polymer or polymer segment precipitation that leads to gel formation of ink compounds by controlling the solubility parameter of the ink system. The mechanism to obtain a desirable wet on wet color trapping is the formation and/or presence of a gel in the applied ink film due to a controlled physicochemical mechanism of resin precipitation. This is accomplished either by controlling a change in the Hansen Solubility Parameter of the liquid in the ink through evaporation of some or all of a non-reactive and volatile solvent, or alternatively by use of a polymer comprised of two distinct and separate segments one of which is soluble in the monomer/oligomer mix and the other of which is not. The insoluble segments form a reversible gel that is broken to a liquid by shear in the application process, allowing application of a liquid ink, and is reestablished in the applied ink film in such a manner and with such strength as to allow overprinting in the wet on wet flexographic printing process.

The invention discloses a small-particle-diameter praseodymium zirconium yellow ceramic pigment which comprises the following components in percentage by weight: 3-6% of praseodymium oxide, 48-62% of zirconium oxide, 30-38% of silicon dioxide and 3-8% of a mineralizing agent, wherein the zirconium oxide selects the product which does not remove hafnium elements in the zirconium oxide production process, wherein the atom molar ratio of zirconium oxide to the hafnium elements is greater than 40:1; silicon dioxide selects silicon dioxide aerogel, wherein the BET specific surface area is 500-800 m<2>/g, the average particle diameter is 3-8 [mu]m, and the pore volume is 3-5. The praseodymium zirconium yellow pigment is small in particle diameter and relatively stable in structure, and is hard to damage in the ceramic ink preparation process. Meanwhile, the pigment is high in color strength in transparent glaze, and fine and smooth in color tone, and can be used as the high-grade ceramic pigment.

The invention relates to a reactive printing dye composition, which comprises: (a) at least one reactive dye; (b) organic buffer; and (c) mirabilite or dispersing agent. The reactive printing dye composition is suitable for fabric dyeing, such as fabrics made with cellulose fibers and other mixed fibers, including cotton, fiber, silk, rayon, wool, blended fibers and the like. In addition, the reactive printing dye composition has good characteristics of high pH stability, good storage stability, improved recession of the dyeing intensity of the dye and the like. Moreover, the invention also provides a liquid reactive printing dye composition.

The invention discloses a frit used for producing Longquan celadon, a Longquan celadon frit glaze and a production method of the frit glaze. Raw materials of the frit comprise, by weight, 45-95% of rare earth tailings, 1-30% of Longquan porcelain clay, 1-25% of alumina powder, 1-15% of kaolin, 1-30% of yellow glaze soil, 0-25% of potash feldspar, 0-20% of quartz and 0-10% of talcum. The rare earth tailings are adopted as a main raw material of the frit, so the recycling of the rare earth tailings is realized, and the use amounts of other routine Longquan celadon raw materials are greatly reduced; and trace rare earth elements in the rare earth tailings have an obvious color development promoting effect on the celadon glaze, so extra addition of a coloring agent or a ceramic coloring chemical engineering raw material to the glaze is prevented, thereby the manufacturing cost of the Longquan celadon frit glaze is reduced, the color appearance of the glaze is stable, and industrial large-scale production is facilitated.

The present invention provides a method for producing a pigment composition for a printing ink, which involves the step of dry-milling crude copper phthalocyanine using calcium carbonate having a specific property; a pigment composition for a printing ink; and a method for producing a printing ink using the pigment composition. Specifically, the present invention provides a method for producing a pigment composition for a printing ink, which involves the step of dry-milling crude copper phthalocyanine and calcium carbonate having a primary particle diameter of 20 to 1500 nm in the absence of a resin for a printing ink; a pigment composition produced by the method; and a method for producing a printing ink, which includes the steps of heating a mixture of a pigment composition, a resin for a printing ink and a solvent for the printing ink, and wet-milling the heated mixture.

The invention discloses heterocycle alkaline-washable carboxylic acid ethyl ester type disperse dye. The molecular structure of the disperse dye comprises carboxylic acid ethyl ester groups, and the structural general formula of the carboxylic acid ethyl ester groups is D-COOC2H5, wherein the D refers to a color body with a heterocycle azo structure. The invention further provides a preparation method of the heterocycle alkaline-washable carboxylic acid ethyl ester type disperse dye, existing cyanophoric disperse dye is selected as a raw material, and an alcoholysis method is applied to preparation of the heterocycle alkaline-washable carboxylic acid ethyl ester type disperse dye. The disperse dye has good dyeing property, and has high dye-uptake rate and color fastness when being applied to Dacron dyeing; during post-treatment of PET (polyethylene terephthalate) fiber dyeing, acid dye containing water soluble groups and harmfulless ethyl alcohol are generated only through alkaline solution treatment of fibers to achieve ester group hydrolysis, and the obtained acid dye can be recycled through acidification and the like.

The invention provides a ceramic tile with a color-assisting flower glaze layer and a preparation method thereof and belongs to the field of architectural ceramics. The ceramic tile with the color-assisting flower glaze layer comprises a blank body layer, a printed layer and the color-assisting flower glaze layer from bottom to top, wherein the color-assisting flower glaze layer is formed through coating color-assisting flower glaze, and the color-assisting flower glaze contains the following ingredients in parts by mass: 100 parts of high-zinc clinker, 130 parts of printing paste, 0.3 part of sodium tripolyphosphate and 40 parts of water, wherein the high-zinc clinker contains the following chemical ingredients in parts by oxide weight: 53 parts of SiO2, 21 parts of ZnO, 4 parts of K2O, 7 parts of Al2O3, 3 parts of MgO and 3.5 parts of CaO. Compared with the prior art, the ceramic tile with the color-assisting flower glaze layer, provided by the invention, has the advantages that the color-assisting flower glaze layer can enable color development strength of printing oil or ink to be improved by about 10%, the production cost is reduced, and printed patterns with clear boundary grains can be obtained.

A process for preparing transparent Pigment Yellow 138 by grinding Pigment Yellow 138 in the presence of a grinding agent, preparing an aqueous slurry of the ground particles, and filtering the slurry resulting in a filter cake containing particles of transparent Pigment Yellow 138. In addition, a process for improving color strength of an ink and/or plastic composition is also disclosed by adding transparent Pigment Yellow 138 to the composition.

The invention discloses dyeing-assistant fancy glaze capable of promoting pigment color development and a ceramic tile prepared from the same, and belongs to the field of building ceramic production. The dyeing-assistant fancy glaze comprises, by mass, 100 parts of high-zinc frit, 130 parts of printing paste, 0.3 part of sodium tripolyphosphate and 40 parts of water. The high-zinc frit comprises, by weight of oxides, 53 parts of SiO2, 21 parts of ZnO, 4 parts of K2O, 7 parts of Al2O3, 3 parts of MgO and 3.5 parts of CaO. The high-zinc calcium-magnesium raw material is used in the dyeing-assistant fancy glaze, color development of pigment in ink and stamp-pad ink can be promoted, cost is reduced, the glaze has high hardness after burning, and printed pattern layers can be well protected.

The invention discloses a method for preparing direct yellow G. DSD acid is taken as an initial raw material, and the method comprises the following steps of: reacting with sodium nitrite, phenol and chloroethane in turn, and respectively performing diazotization, coupling and chloroethane etherification to obtain the direct yellow G, wherein a solvent in diazotization, coupling and chloroethane etherification is ethanol. The DSD acid is taken as the initial raw material and is subjected to diazotization, coupling and chloroethane etherification respectively to form a dye of the direct yellow G, the ethanol is adopted as a reaction solvent in the diazotization, coupling and chloroethane etherification and can be recycled after reaction, a large amount of water is prevented from serving as the reaction solvent, the problem that a large amount of industrial wastewater is difficult to treat is radically solved and the zero emission of the industrial wastewater is achieved.

The invention discloses a disperse black dye mixture. The mixture comprises, by mass, 1-10% of a component A represented by structural formula (I), 1-10% of a component B represented by structural formula (II), 1-10% of a component C represented by structural formula (III), 1-10% of a component D represented by structural formula (IV), 15-40% of a component E represented by structural formula (V), 0-5% of a component F represented by structural formula (VI), and the balance of an assistant. The dye mixture obtained the invention allows a sample cloth dyed by using the mixture to have brilliant color, and has the advantages of excellent color fastness and dyeing degree, and low production cost.

The invention relates to an oil marker, and in particular relates to an oil mark polymer and a preparation method and application thereof. The oil mark polymer is formed by connecting one or more oil identification groups with a polymer template through a chemical bond, wherein the polymer template is a polymer with a three-dimensional topological structure obtained by homo-polymerizing or copolymerizing olefin monomer or a polymer additive in the refined oil product; the identification group is one or more of colored groups, fluorescence groups and near infrared groups. A light-emitting group in the oil mark polymer provided by the invention has the advantages of aggregating and enhancing, and the usage amount of identification small molecule is reduced; the marker is hard to reject by use of a molecular sieve and other traditional means; a chromophoric group has a certain degree of red shift/blue shift, so that a novel chromatographic peal identification is produced, and the anti-fake level is increased.

The present invention provides azo dyes of formula (1), wherein D, M and Y are each as defined in claim 1, processes for their preparation and their use.

The invention belongs to the technical field of disperse dyes and particularly relates to a polylactic acid fiber dyeing azo structured lactate type disperse dye and a preparation method and dyeing process thereof. The polylactic acid fiber dyeing azo structured lactate type disperse dye is prepared by taking a hydroxyl group-containing disperse dye as the raw material for reflux reaction with lactic acid. The polylactic acid fiber dyeing azo structured lactate type disperse dye introduces lactate groups which are similar in structure to fiber and high in polarity to improve the compatibilitywith polylactic acid fiber and increase the dyeing rate; meanwhile, hydroxyl of the lactate groups can increase the boiling point of the polylactic acid fiber dyeing azo structured lactate type disperse dye and help form intermolecular hydrogen bonds to improve the color fastness to sublimation of the polylactic acid fiber dyeing azo structured lactate type disperse dye. Therefore, the polylacticacid fiber dyeing azo structured lactate type disperse dye is bright in color, high in color intensity and fastness and good in dyeing effects.

An ink composition contains dyes A and B. Dye A has a width at a half height of the largest peak in the absorption spectrum between 380 nm and 780 nm that is 50 nm or less. Dye B has a corresponding width at the half height that is 70 nm or more. Dye A is present in an amount of 40% by mass or more and 90% by mass or less of the total mass of the dyes.

The invention relates to a solid paint preparation almost without formaldehyde which consists of at least one paint and a resin, relating the production method and the application in a paint, a japanning, a blinder, an ink or a printing ink.

The invention relates to a high-temperature disperse brown dye compound and a preparation method thereof. The high-temperature disperse brown dye compound is prepared by the following steps: diazotizing an aniline compound in an acid medium by nitrite; and then, coupling with a quinolinone coupling component. The high-temperature disperse brown dye compound used for dyeing dacron/cotton fabrics has a good application performance.

The invention discloses a yellow dye, an ink and an electrowetting display. The dye adopts an azo group and a carbon-nitrogen double bond to build a chromogenic body structure, and avoids the usage of 4-aminoazobenzene in the structure of a yellow electrowetting organic dye in current patents, the original spectrum properties of the yellow organic dye are retained, and at the same the yellow organic dye is greener and safer; the yellow dye disclosed in the invention has a higher molar absorptivity and higher solubility, especially the solubility in a non-polar solvent is relatively high, when the yellow dye is dissolved in the non-polar solvent, the obtained ink is bright in color, high in saturation degree, and ultra-high in coloring intensity, and when the electrowetting display is filled with the ink, the electrowetting display has relatively-low switching response time, and no flow-back phenomena under a constant voltage; and the ink prepared from the dye provided in the invention is very suitable for electrowetting display.