72results about "Quinacridones" patented technology

An object of the present invention is to provide a pigment composition that is suitable as an IJ ink and has high dispersion stability and excellent storage stability, a coloring agent containing the pigment composition, and, in particular, an IJ ink. The pigment composition of the present invention contains a quinacridone pigment and a compound represented by formula (I) below: [In formula (I), n represents an integer of 1 to 8.] At least C.I. Pigment Red 122 is preferably contained as the quinacridone pigment.

The invention relates to the field of organic pigments, and discloses a preparation method and application of nano organic pigments with different crystal forms. The preparation method comprises the following steps: 1) dissolving an organic pigment crude product in a good solvent, and adding inorganic salt for activation; 2) dropwise adding a poor solvent at a gradient rate, adding a crystal form guiding agent, and inducing formation of a crystal nucleus; wherein the alpha crystal form directing agent is magnesium stearate; the beta crystal form directing agent is dibutyl phthalate; the gamma crystal form directing agent is polyethylene glycol; the initial gradient rate is 0.5-1 mL / min, and the gradient rate is increased by 0.2-0.3 mL / min every 8-12 min; 3) ultrasonic treatment; 4) cooling, and adding a surface modifier for surface modification; according to the preparation method, the nanometer organic pigment with the target crystal form can be accurately obtained through process regulation and control, the nanometer organic pigment is uniform in particle size distribution, good in dispersity, good in heat-resistant stability and high in color and luster strength, and the nanometer organic pigment has the advantages of being good in flocculation-resistant stability and weather resistance after a coating is formed.

To provide an aqueous inkjet ink suitable for inkjet printing of a structure made of cotton or synthetic fiber. Another object of the present invention is to provide a method for printing a fabric structure by an inkjet method, which is excellent in optical density (OD), bleeding suppression, or color development after printing.SOLUTION: The water-based inkjet ink of the present teaching is an ink for printing structures made of cotton or synthetic fibers, in which the water-based inkjet ink (1) contains at least pigments, dispersants, solvents and water, (2) the dispersants have an amine value of not less than 10mgKOH / g, and the amine value is higher than the acid value, (3) the content of the pigments is not less than 0.01% by mass and not more than 30% by mass, and (4) the value of [(content of dispersants) / (content of pigments)] * 100 is not less than 5 and not more than 200.SELECTED DRAWING: None

To provide a quinacridone pigment which cannot only reduce a phosphorus content in total pigment but also suppress elution of phosphorus from a pigment surface and which is useful for use in inkjet printing.SOLUTION: There is provided a quinacridone pigment which shows a phosphorus elution amount of 100 ppm or less according to the following measurement method and a phosphorus content of 400 ppm or less. Measurement method: quinacridone pigments before and after dispersion under the following dispersion condition are subjected to measurements by an X-ray fluorescence analyzer and a difference in phosphorus contents is taken as a phosphorus elution amount. Dispersion condition: to 1 pt.wt of quinacridone pigment are added 0.1 pt.wt of IPA and 15.9 pts.wt of water, and the mixture is agitated at 20°C and is dispersed by a paint conditioner at a vibration frequency of 750 rpm for 1 hour.SELECTED DRAWING: None

The invention belongs to the technical field of pigment preparation, and particularly relates to a preparation method of quinacridone series pigments. The preparation method comprises the following steps: firstly, adding polyphosphoric acid into a screw extrusion kneading machine, heating to 130-180 DEG C under the protection of nitrogen, then adding a dispersing agent and a pigment intermediate, immediately cyclizing after the intermediate is in contact with the polyphosphoric acid, and finally, carrying out screw extrusion discharging and treatment to obtain the quinacridone series pigment. The kneading machine with efficient stirring capacity is adopted, and a small amount of dispersing agent is added in the early stage of kneading and before the intermediate is added, so that the fluidity of a cyclization product in polyphosphoric acid is improved, the cyclization condensation efficiency is improved, the cyclization condensation reaction can be completed by using a small amount of polyphosphoric acid, and the production cost is reduced. And when the synthesized pigment is used in paint or plastic, the pigment has excellent tinting strength and good dispersion performance.

The invention provides a preparation method of a high-covering yellow-phase quinacridone pigment. The preparation method comprises the following steps: step 1, using 116-118% of polyphosphoric acid; step 2, adding 2, 5-diphenylamino-3, 6-dihydroterephthalic acid dimethyl ester at the temperature of 90 DEG C to 135 DEG C; step 3, keeping the temperature at 120-135 DEG C for 1-4 hours, cooling to 120 DEG C, and diluting the polyphosphoric acid to 110-112%; step 4, pouring the polyphosphoric acid reactant into water, filtering, and washing with water to obtain 6, 13-dihydroquinacridone; step 5, adding the dried and crushed 6, 13-dihydroquinacridone into a solvent for pulping, and the concentration of the solvent must be greater than 50%; step 6, adding a sodium hydroxide solution, adjusting the pH value to be greater than 11, heating to 80-90 DEG C, and keeping the temperature for 30-60 minutes; step 7, after cooling, adding an oxidizing agent and a catalyst, determining that the pH value is greater than 11, heating to 100-110 DEG C, preserving heat for 2 hours, cooling and filtering to obtain the yellow-phase quinacridone with high coverage; the quinacridone obtained in the invention has excellent weather resistance and covering power, and can be used in printing pigments, water-based paint compositions, varnish, polyurethane varnish, plastic dispersions and spinning solutions; the obtained quinacridone is applied to synthesis and natural polymers, and the quinacridone obtained in the invention can be used in natural, recycled and synthetic fiber materials, and can also be mixed with gas organic and inorganic pigments for use.

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.

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.

Provided is an aqueous pigment dispersion having water, a pigment, and a cross-linked polymer, wherein the cross-linked polymer is a reaction product of a dispersion resin having an anionic group and a cross-linking agent, the dispersion resin having an anionic group is water soluble and has an acid value of 181 to 220 mgKOH / g, the cross-linking agent is a water-soluble compound having two or more epoxy groups, and the cross-linked polymer has a cross-linking ratio of more than 80%. The aqueous pigment dispersion can be used to produce an inkjet ink that maintains excellent storage stability even under high temperatures or in an environment with widely varied temperatures, and has excellent printability.

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.

An object of the present invention is to provide an innovative quinacridone pigment that can exhibit even better viscosity stability than conventional pigments and also maintain high saturation in aqueous IJ ink uses. The quinacridone pigment of the present invention has a specific surface area ratio between water vapor and nitrogen of 0.270 or more and less than 0.430. The pigment dispersion of the present invention contains the quinacridone pigment and a solvent. The aqueous inkjet ink of the present invention contains the pigment dispersion.

Provided are a quinacridone compound derived from biomass, which is obtainable safely and through a clean, green, and carbon neutral approach. and a composition containing the compound. A quinacridone compound including a radioactive carbon atom 14C and having the structure represented by the following formula (B). (In the formula (B), X each independently represents -Cl, -F, -Br, -I, -OH, -NO2, a C1 to C12 alkyl group, a C1 to C12 alkoxy group, a phenyl group, -COOH, -COO- C1 to C12 alkyl, or - CO-NR, R each independently represents a hydrogen atom, an alkyl group, an alkenyl group, or a phenyl group, and n each independently represents 1 or 2.)

There is provided a photoelectric conversion film including a quinacridone derivative represented by the following General formula and a subphthalocyanine derivative represented by the following General formula.

The present disclosure provides a photoelectric conversion film including a transparent compound that does not absorb visible light; and an organic dye compound that absorbs green light in a wavelength band greater than or equal to 450 nm and less than or equal to 600 nm.

The present invention relates to a composition for dyeing a substrate comprising, based on the total weight of the composition: 10 to 70% by weight of water; 0.025 to 12.5 wt% of a colorant; and 0.1 to 10 wt% of a tetrahydric alcohol wherein the tetrahydric alcohol has at least 5 carbon atoms; the invention also relates to the use of the composition for dyeing a substrate for producing a film on a substrate.

The invention relates to a preparation method and application of a storage-stable low-viscosity quinacridone pigment for water-based ink. The closed-loop material is subjected to small-amount sulfonation to form a small amount of sulfonated derivatives, so that the particle size of the pigment can be effectively reduced, and the viscosity of the pigment in water-based ink is reduced. During precipitation, ammonium salt, ferrous salt and the like are added into a precipitation material, so that more crystal nucleuses can be formed during precipitation of the pigment, fine crude pigment particles are obtained, the particle size of the pigment is further reduced, the pigment is easy to homogenize, and the viscosity of the pigment in ink is reduced. In the pigment curing process, proper solvents and treatment conditions are selected, so that pigment crystal particles grow more uniformly. During pigment surface treatment, pigment derivatives (sulfonates and the like) are added, the viscosity of the pigment in the water-based ink can be effectively reduced, meanwhile, sulfonic acid groups can provide large steric hindrance, the pigment in the ink is prevented from being gathered, the pigment is more stable and does not flocculate in an application system, and the storage stability of the pigment in the water-based ink is improved.

The present invention relates to a composition for coloring a substrate, the composition comprising 10 to 70 wt. % of water; 0.025 to 12.5 wt. % of a colorant; and 0.1 to 10 wt. % of a tetrahydric alcohol, each of which is based on the total weight of the composition, wherein the tetrahydric alcohol has at least one carbon atom; and to use of the composition for coloring a substrate to produce a film on the substrate.

The present invention provides a pigment composition which can keep black coloration even at a low concentration itself and has excellent infrared transparency. A pigment composition of the present invention includes at least a thioquinacridone-based pigment compound (A) and a pigment compound (B). The thioquinacridone-based pigment compound (A) is one or two or more thioquinacridones which may have a substituent. The substituent is one or two or more selected from the group consisting of an alkyl group having 1 to 3 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, and a halogen atom. The pigment compound (B) has 0 < a*< 80 and -80 < b*< 0 in the L*a*b*color space of a pigment (BP) thereof.

To provide a pigment composition which can exhibit good dispersibility and dispersion stability of a pigment in a polyurethane ink etc., and to provide a colorant and a liquid ink which each contain the pigment composition.SOLUTION: A pigment composition comprises: at least one organic pigment selected from the group consisting of benzimidazolone azo pigments and quinacridone pigments, and at least one polycarboxylic acid compound represented by, for example, the following formula. (In the formula, R1 represents an alkylene group that may be substituted with a hydroxyl or carboxyl group, or a single bond). (In the formula, R2 represents an alkyl group that may be substituted with a hydroxyl or carboxyl group).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.

An object of the present invention is to provide a pigment composition that is suitable as an IJ ink and has high dispersion stability and excellent storage stability, a coloring agent containing the pigment composition, and, in particular, an IJ ink. The pigment composition of the present invention contains a quinacridone pigment and a compound represented by formula (I) below. In formula (I), n represents an integer of 1 to 8. At least C.I. Pigment Red 122 is preferably contained as the quinacridone pigment.

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.

An inkjet ink includes a quinacridone pigment, a pigment dispersion resin, and a water-soluble organic solvent. The pigment dispersion resin includes an adsorbed resin adsorbed on the quinacridone pigment and an unadsorbed resin that is not adsorbed on the quinacridone pigment. A ratio of the unadsorbed resin to the pigment dispersion resin is 40 mass % or less. The water-soluble organic solvent includes a predetermined water-soluble organic solvent having an octanol / water partition coefficient Log P of 0.00 or more. A content ratio of the predetermined water-soluble organic solvent with respect to a mass of the inkjet ink is 15 mass % or more and 40 mass % or less. A sulfur concentration in a supernatant liquid obtained by centrifuging the inkjet ink at 1,050,000 G for 3 hours is 0.5 ppm or more and 2.0 ppm or less.

Provided are a quinacridone compound derived from biomass, which is obtainable safely and through a clean, green, and carbon neutral approach. and a composition containing the compound. A quinacridone compound including a radioactive carbon atom 14C and having the structure represented by the following formula (B).(In the formula (B), X each independently represents —Cl, —F, —Br, —I, —OH, —NO2, a C1 to C12 alkyl group, a C1 to C12 alkoxy group, a phenyl group, —COOH, —COO—C1 to C12 alkyl, or —CO—NR, R each independently represents a hydrogen atom, an alkyl group, an alkenyl group, or a phenyl group, and n each independently represents 1 or 2.)

The present invention belongs to the field of organic pigments and specifically discloses a method for preparing a water-based pigment paste of quinacridone pigments. In an anhydrous solvent, a portion of the quinacridone pigment is first ionized using a hydrogen extraction agent to promote a certain dispersion of the pigment; a dispersant is then added to promote further dispersion of the pigment; the pigment that has achieved a certain dispersion effect undergoes a modification reaction with a substance containing a hydrophilic group, and the modification reaction and pigment dispersion promote each other, thereby improving the degree of the modification reaction and the dispersion effect. The organic solvent is then removed by suction filtration, and the pigment is dispersed with water to obtain a water-based self-dispersing pigment paste. The method of the present invention utilizes a hydrogen extraction agent to first ionize the pigment, thereby facilitating dispersion; pigment dispersion and modification reaction are effectively combined, and the modification reaction and pigment dispersion promote each other. The paste has high stability, a simple process, and high production capacity, which is conducive to industrial production.

The invention belongs to the technical field of pigment red preparation, and particularly provides a high crystal transformation quality-based quinacridone pigment red surface treatment process, which comprises the following steps: 1) taking a pigment crude product, and carrying out grinding and salt milling to obtain a primary treatment material; and 2) adding a solvent and a MA-HBA derivative into the primary treatment material, stirring for pigmentation, and then filtering and drying to obtain the pigment red, the MA-HBA derivative is prepared by synthesizing methyl p-hydroxybenzoate and 1, 11-undecanediol, and the prepared pigment red has the advantages of good pigmentation effect and good covering power.

An object of the present invention is to provide an innovative quinacridone pigment that can exhibit even better viscosity stability than conventional pigments and also maintain high saturation in aqueous IJ ink uses. The quinacridone pigment of the present invention has a specific surface area ratio between water vapor and nitrogen of 0.270 or more and less than 0.430. The pigment dispersion of the present invention contains the quinacridone pigment and a solvent. The aqueous inkjet ink of the present invention contains the pigment dispersion.

The present invention provides a polymeric dispersant that is to be blended in an aqueous pigment dispersion in which a pigment is finely dispersed in a stable manner and at a high level, the aqueous pigment dispersion enabling preparation of an aqueous inkjet ink capable of recording an image excellent in adhesiveness and durability on plastic media and textiles. The polymeric dispersant is a polymeric dispersant that is for dispersing a pigment and is to be blended in an aqueous pigment dispersion to be used for an aqueous inkjet ink for plastic media printing or textile printing, and is a polymer satisfying the following requirement (1) and the like. [Requirement (1)]: The polymer includes a constituent unit (i) derived from styrene, a constituent unit (ii) derived from methyl methacrylate and / or the like, a constituent unit (iii) derived from 2-ethylhexyl methacrylate and / or the like, a constituent unit (iv) derived from 2-hydroxyethyl methacrylate and / or the like, and a constituent unit (v) derived from methacrylic acid, and at least part of carboxy groups is neutralized with an alkali.

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.