23results about "Complex metal azo dyes" patented technology

The invention relates to the technical field of dyes, in particular to an acid black dye with green light and a preparation method thereof.The preparation method comprises the steps that a front color base I and a front color base II are synthesized firstly, then the front color base I and chromic oxide are complexed to obtain a reaction solution I, then the front color base II is added into the reaction solution I, and the acid black dye with the green light is prepared. The preparation method is simple and environment-friendly, a dye compound A, a dye compound B, a dye compound C and a dye compound D are formed by complexing a front color base I, a front color base II and chromium ions, and then the adding amount proportion of the front color base I, the front color base II and the chromium ions is adjusted; the ratio of the dye compound A to the dye compound B to the dye compound C to the dye compound D is adjusted, the green and full acid black dye is prepared, and the obtained acid black dye with green light is excellent in color fastness.

The present invention provides a black resin particle dispersion and an aqueous ink composition for writing instruments that exhibit excellent lightfastness, blackness, and storage stability. [Solution] The black resin particle dispersion consists of resin particles containing at least an azo iron dye dispersed in water. The azo iron dye is preferably represented by the following formula (α). TIFF2026082096000038.tif62120 [A + This represents a monovalent ammonium ion having an alkyl group with 3 to 18 carbon atoms.

To provide a colored composition for color filters that exhibits high contrast ratio due to low aggregation of pigments, fewer film defects in the coating even when stored for a long period under temperature fluctuations, and good pattern characteristic dependence with respect to the time from application to exposure when used as a colored curable composition. To provide a colored curable composition for color filters, a color filter, a solid-state image sensor, and an image display device using the colored composition for color filters. [Solution] A coloring composition for color filters comprising a pigment (A), a dye derivative (B), a resin-type dispersant (C), and an organic solvent (D), wherein the dye derivative (B) comprises a compound having a heterocycle (B1), a compound having a heterocycle (B2), and a compound having a heterocycle (B3), and the mass ratio of compounds (B1) to (B3) satisfies a specific range.

To provide a red coloring composition capable of forming a color filter further improved in luminance (brightness).SOLUTION: The red coloring composition contains a red colorant and a yellow colorant. The red colorant contains a diketopyrrolopyrrole pigment and a quinacridone pigment having a halogen atom. The yellow colorant contains at least one selected from the group consisting of an azo dye containing a metal and a quinophthalone pigment.SELECTED DRAWING: None

This invention aims to provide a film that achieves high color purity and vividness of red, and further, in a preferred embodiment, also provides a film with good color purity and vividness of green and blue, and excellent visual recognition. The film is defined as containing a colorant, a red colorant, and a binder. The colorant, when applied at a concentration of 50% by weight on a glass substrate with a thickness of 1 μm using a transparent acrylic resin as a binder, exhibits an average light transmittance of 30% or more at wavelengths from 660 nm to 1000 nm, and an average light transmittance of 20% or less at wavelengths from 380 nm to 660 nm. When the average light transmittance of the film at wavelengths from 400 nm to 660 nm is set as T1 (%), T1 (%) is 25% to 90%, and the film thickness is 0.2 μm to 1000 μm.

A dye according to the present invention is a compound represented by general formula (1) or general formula (2). (In the formula, M represents Sn or Ge, X represents C or N, R1 represents an alkyl group or a phenyl group, Y1 and Y2 each represent hydrogen, a halogen group, a methyl group, an alkoxy group, a phenyl group, a diphenylamide group, a thiophenyl group, or a phenylethynyl group, and Z represents a single bond or is represented by formula (3). R2 represents an alkyl group or a phenyl group.)

To provide dyeing powder capable of enhancing a degree of design freedom, a coating composition, a water repellent film and a water repellent member, as well as, a manufacturing method of the dyeing powder and the water repellent member.SOLUTION: Dyeing powder contains alumina as a main component and has a plurality of long particles having an elongated shape, and an inorganic dye compound is incorporated in the long particles. A method for manufacturing the dyeing powder includes a step of firing a plurality of precursor particles having the elongated shape containing at least one of alumina and aluminum hydroxide at 500°C or more and 1100°C or less to obtain a plurality of fired particles containing alumina as a main component, having the elongated shape and provided with meso fine pores, and a dyeing step for incorporating an inorganic dye compound into the meso fine pores of the plurality of the fired particles.SELECTED DRAWING: Figure 4

[Problem] To provide an azo iron complex dye which does not contain harmful heavy metals, exhibits sufficient solubility in organic solvents for practical use, and exhibits a good black color. [Solution] This azo iron complex dye contains a disazo-monoazo iron complex represented by chemical formula (1) (In chemical formula (1), R1 and R2 are each independently a straight chain or branched chain alkyl group having 3-10 carbon atoms, R3 is an electron-withdrawing group, R4 is a straight chain or branched chain alkyl group having 1-5 carbon atoms or a straight chain or branched chain alkoxy group having 1-5 carbon atoms, R5 is a nitro group, a sulfoamide group or a halogen atom, R6 is a hydrogen atom, a straight chain or branched chain alkyl group having 1-8 carbon atoms, a nitro group or a halogen atom, R7 is a hydrogen atom or a straight chain or branched chain alkyl group having 3-12 carbon atoms, and A+ is a monovalent cation).

An object of the present invention is to provide a colored photosensitive resin composition that has high brightness, good color properties, and excellent solvent resistance, and to provide a high-brightness color filter that has excellent color tones, particularly a color filter that can be used in a liquid crystal display. [Solution] A colored photosensitive resin composition includes a colorant containing a phthalocyanine dye of a specific structure, an alkali-soluble resin, and a photopolymerization initiator. The phthalocyanine dye preferably has a light transmittance of 85% or more at a wavelength of 480 nm when the absorbance at the maximum absorption wavelength is taken as 1. Furthermore, the colorant preferably contains an azo yellow dye or an azo yellow pigment. Furthermore, the above-mentioned problems can be solved by a cured film obtained by curing the colored photosensitive resin composition.

The present application relates to papermaking technical field, especially to a kind of anti-myopia yellow light absorption dye preparation method and myopia protection paper.The present application discloses a kind of anti-myopia yellow light absorption dye preparation method, dye preparation is diazotized to p-nitroaniline, coupled with 2-(2-hydroxy-5-sulfonic acid group phenyl) benzotriazole, salting-out, then with zinc sulfate, sodium sulfide complex azo dye-zinc sulfide complex is obtained.The protection paper is made by 3D printing texture forming and multiple composite function layer, mixed dye, 3D printing net form paper is made of pulp;Coated with bottom layer composite fluid, spray nano-silicon dioxide to obtain first-stage processing paper;Pretreatment dye coating, crosslinking to obtain secondary processing paper;Hot-pressing copolymerization fiber membrane and fumigation are obtained.The paper can prevent myopia, and is suitable for writing and printing.

To provide a photosensitive coloring composition which is reduced in generation of wrinkles in curing, is excellent in development property and pattern formation property, and has high light-shielding property.SOLUTION: A photosensitive coloring composition contains a coloring agent (A), an alkali-soluble resin (B), a polymerizable compound (C), a photopolymerization initiator (D) and a thermosetting compound (E), wherein the coloring agent (A) contains a zinc halide phthalocyanine pigment (A1) having the number of halogen atoms in one molecule of 10-14 in average, the number of bromine atoms of 8-12 atoms in average and the number of chlorine atoms of 2-5 in average, and a metal azo pigment (A2) containing formula (1) or its tautomer, and a compound represented by formula (2).SELECTED DRAWING: Figure 1

The present invention provides an azo metal complex dye that has sufficient solubility in organic solvents for practical use, exhibits good black color, and maintains its blackness without discoloration even when dissolved in ketone and / or alcohol-based solvents and stored at high temperatures for extended periods, as well as an ink composition containing the same. [Solution] The azo metal complex dye includes a disazo-monoazo metal complex dye represented by formula (1). The ink composition includes the azo metal complex dye and an organic solvent. TIFF2026088907000090.tif66170 (In the formula, A + (It is a quaternary ammonium cation.)

To provide a coloring agent including a methylated diketo-pyrrolo-pyrrole pigment, having an excellent spectral characteristic, a high contrast ratio, a viscosity stability, and a solvent resistance, and causes less generation of foreign materials due to defective dispersion and less generation of foreign material due to a heating process.SOLUTION: The present invention relates to a coloring agent containing a methylated diketo-pyrrolo-pyrrole pigment expressed by a chemical formula (1). The X-ray diffraction pattern of a CuKα-ray has its peak when the Bragg angle 2θ is 2θ(±0.3)=15.7° and 27.0°. The coloring agent has a crystal type in which the intensity ratio (H2 / H1) when the diffraction intensity of 15.7° is denoted by H1 and the diffraction intensity of 27.0° is denoted by H2 is in the range of 1.5 to 2.6, both inclusive.SELECTED DRAWING: None

A composition containing a pigment and a resin, wherein the pigment contains one or more types of pigments selected from the group consisting of a nickel azo complex pigment, a quinacridone pigment, and a phthalocyanine pigment represented by general formula (Pc) or a dimer of said phthalocyanine pigment.

The invention relates to the field of textile dyes, and discloses a high-fastness acid dye composition and a preparation method and application thereof.The composition comprises an A-series extremely light three-primary-color series, a B-series light medium three-primary-color series, an M-type deep three-primary-color series and a brilliant-color series, and each series is composed of an acid dye body, a leveling agent, a color fixing agent and a pH buffering agent; and the total mass of the auxiliary agent accounts for 5-15%. The preparation method comprises the steps of dye intermediate preparation through diazotization-coupling reaction, metal complexation reaction, mixing and dissolving, sanding and refining and filtering and blending, the particle size D of the obtained dye is smaller than or equal to 1.5 microns, and the pH value of the solution is 4.0-6.5. The composition is suitable for dyeing fabrics such as chinlon, chinlon spandex, chinlon polyester and the like, the dyeing temperature is 60-105 DEG C, the washing fastness, the white splicing fastness and the storage fastness all reach 4-5 levels, and the exhaustion rate is greater than or equal to 98%. Through collaborative design of multiple series of structures and control of a buffer system, the effects of uniform dyeing and high fastness under different color depths are achieved, the dye liquor is stable, and the environment-friendly performance is excellent.

Provided is a colored resin composition comprising (A) a resin containing a hydroxyl group or an acid group, (B) a colorant, (C) a dispersant, and (D) a blocked isocyanate, wherein the dispersant (C) is an acrylic dispersant having a basic group. The colored resin composition can cure at low temperatures and has excellent viscosity stability at ordinary temperature. The colored resin composition, even after a light-resistance test or a high-temperature high-humidity test, retains high adhesiveness.

An object is to provide a film that can achieve red color with high color purity and color vividness, and in a preferred aspect, also has good color purity and color vividness in the green and blue wavelength regions, and has excellent visibility. The main object is to obtain a film having a thickness of 0.2 µm to 1,000 µm, comprising a composition containing: a coloring agent (hereinafter referred to as a "light-blocking coloring agent A") characterized in that, when a film is formed on a glass substrate in a film thickness of 1 µm using transparent acrylic resin as a binder and at coloring agent concentration of 50% by weight, the average light transmittance of the film in the wavelength range of 660 nm to 1000 nm is 30% or more and the average light transmittance of the film in the wavelength range of 380 nm or more and less than 660 nm is 20% or less; a red coloring agent; and a binder, wherein the film has T1 (%) of 25% to 90%, where T1 (%) is an average value of light transmittance at wavelengths from 400 nm to 660 nm.

The invention relates to 1: 2 metal complex red, a preparation method thereof and a dye composition, the preparation method comprises the following steps: mixing 5-sulfonic acid-7-nitrobenzofurazan, an acid-binding agent, a Lewis acid catalyst and water, adjusting the pH value to 1.9-2.1, and carrying out a ring-opening reaction, the molar ratio of 5-sulfonic acid-7-nitrobenzofurazan to the Lewis acid catalyst being 1: 0.012-0.017; pyrazolone shown in the formula (I) is added into a ring-opening reaction product, a coupling reaction is conducted under the condition that the pH ranges from 7.0 to 8.0, in the formula (I), R1 is selected from phenyl or tolyl, and R2 is selected from methyl or ethyl; a chromium solution is dropwise added into the coupling product, the molar ratio of the chromium element in the chromium solution to the coupling product is 1: (1.9-2.1), the temperature is controlled to be 75-80 DEG C in the dropwise adding process, the concentration of Cr < 3 + > is 0.02-0.03 mol / L, the temperature is increased to 95-97 DEG C after dropwise adding is completed, the pH is adjusted to 4.5-4.8, a complexation reaction is conducted, and the 1: 2 metal complex red shown in the formula (II) is obtained. The 1: 2 metal complex red with low environmental protection risk, high dyeing performance and good batch stability can be prepared.

The present invention provides a composition, molded article, and device that achieve both excellent infrared transmission and good heat resistance, thereby improving sensing accuracy and achieving excellent sensing stability. [Solution] A composition comprising a pigment and a resin, wherein the pigment comprises one or more selected from the group consisting of nickel azo complex pigments, quinacridone pigments, and phthalocyanine pigments represented by general formula (Pc), or dimers of said phthalocyanine pigments.

The invention relates to the technical field of yellow pigment processing, in particular to a sun-proof yellow pigment preparation process and a product thereof, and the process comprises the following steps: under the protection of nitrogen, preparing a diazonium solution from polyvinylpyrrolidone, hydrochloric acid, dichloroaniline and sodium nitrite; preparing a coupling solution from sodium hydroxide, phenyl methyl pyrazolone and hexadecyl trimethyl ammonium bromide; mixing the modified titanium dioxide with sodium dodecyl benzene sulfonate, rosin soap and ethylene diamine tetraacetic acid, carrying out four-stage pH regulation and gradient heating, finally adding the modified titanium dioxide, and carrying out heat preservation, filter pressing and drying. On the premise of not changing the traditional azo core reaction, the sun-proof grade of the pigment is improved to 7-8 grade from 4-5 grade through assistant synergy and crystal form regulation and control, and the pigment has high tinting strength, excellent dispersity and batch stability, is suitable for building exterior wall coatings, automobile plastic ornaments and high-end light-color ink, and thoroughly solves the problem of outdoor yellow color fading.

A composition comprising a pigment and a resin, the pigment comprising one or two or more selected from the group consisting of a nickel azo complex pigment, a quinacridone pigment, and a phthalocyanine pigment represented by general formula (Pc) or a dimer of the phthalocyanine pigment.

To provide a photoluminescent material having beautiful dark colors under light, while having good luminescent properties.SOLUTION: A photoluminescent material comprises 19.8-54.8% of a polymer matrix, 45-80 wt.% of a photoluminescent compound, 0.2-5 wt.% of a first dye system, and optionally 0-1 wt.% of porous silica, and a second dye system or additives, where the total content of the second dye system and additives is 0-15 wt.%. The first dye system comprises one or more kinds of dyes selected from synthetic black pigments and three-color pigments formed by green, blue and red pigments. The invention further relates to an article coated with the photoluminescent material or made as a whole of the photoluminescent material.SELECTED DRAWING: None

Provided are: a black resin particle dispersion having excellent light resistance, blackness, and storage stability; and an aqueous ink composition for writing implements.　A black resin particle dispersion according to the present disclosure is characterized in that at least resin particles encapsulating an azo iron dye are dispersed in water.　The azo iron dye is preferably represented by formula (α). (In formula (α) the R1 groups are the same or different and represent a hydrogen atom or an alkyl group having 1-12 carbon atoms; the R2 groups and R3 groups are the same or different and represent an alkyl group having 3-10 carbon atoms; and A+ represents a monovalent ammonium ion that has an alkyl group having 3-18 carbon atoms or an ammonium ion of a guanidine derivative.)