24results about "Quinacridones" patented technology

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

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.

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.

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.

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 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 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.

[Problem] To obtain an organic pigment which can be easily dispersed in an organic solvent even if a dispersing agent is not added. [Solution] Provided is a method for producing an amine-modified organic pigment, the method being characterized by mixing, in water, an amine compound and a water-dispersible organic pigment having a carboxyl group and / or a sulfone group at a particle surface to bind the amine compound to the organic pigment.

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.

A pigment preparation comprising: a) as base pigment, CI Pigment Violet 23 of formula I, JPEG2025515961000017.jpg57170b) as pigment synergists, perylenetetracarboxylic diimide compounds of the general formula II containing at least one sulfonic acid group, JPEG2025515961000018.jpg51170 where: A is a divalent residue >NR 1 or >NR 2 -SO3 - X + and R 1 is a hydrogen atom or C1-C 30 - alkyl group, preferably C1-C 18 - an alkyl group, in particular a C1-C4-alkyl group, or an aryl group, preferably a phenyl group, in which the aryl group may be unsubstituted or mono- or polysubstituted by halogen, such as chlorine or bromine, by sulfo, by C1-C4-alkyl, such as methyl or ethyl, by C1-C4-alkoxy, such as methoxy or ethoxy, or by phenylazo, R 2 is an unbranched or branched C1-C6-alkylene radical, in particular ethylene or propylene, X + is NR 3 R 4 R 5 R 6+ and R 3 , R 4 , R 5 , R 6 is H, unbranched or branched C1-C 30 -alkyl, phenyl or phenyl-C1-C6-alkyl.

An object of the present invention is to provide a pigment composition having a high coloring power and a small change in hue when exposed to light for a long time.SOLUTION: A pigment composition comprising at least one pigment (A) selected from the group consisting of an orange pigment, a red pigment and a violet pigment, and a compound (B) represented by the following formula (1): [In the general formula (1), any one of X1 and X2 is a carboxyl group or a carbamoyl group, at least one of Y1, Y2, and Y3 is an alkoxy group or a halogen group, and the remaining X1, X2, Y1, Y2, and are hydrogen atoms. Y3. ] SELECTED DRAWING: None

To provide an indigo dyeing method that makes red dyeing possible using an indigo plant by preferential formation of indirubin as a red pigment rather than indigo as a blue pigment from the indigo plant, and that can also serve as means for producing indirubin.SOLUTION: A red solution is produced by heating fresh leaves and fresh stems of indigo in an acidic aqueous solution, and red dyeing is enabled by placing an object to be dyed into the red solution. Since the red pigment in the red solution is indirubin, the red solution is also usable as a supply source of indirubin.SELECTED DRAWING: None

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.

The present invention relates to the use of anthranilic acid in a process for preparing a compound selected from copper phthalocyanine, quinacridone, 2-[(2-methoxy-4-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide (PY74), and 2-({2-oxo-1-[(2-oxo-2,3-dihydro-1H-benzimidazole-5-yl)carbamoyl]propyl}diazenyl)benzoic acid (PY151). In particular, the anthranilic acid is produced or obtained from a microorganism.

The present invention aims to provide a pigment composition that can form a coating film with high viscosity stability, high color transparency, and vivid color tones (hereinafter referred to as vividness). [Solution] A pigment composition comprising an organic pigment (A), a compound (B), and an aliphatic amine (C), wherein compound (B) is a compound represented by the following general formula (1), The aliphatic amine (C) is an amine having a hydrocarbon chain and a molecular weight of 100 to 1000, which is used in the pigment composition. General formula (1) B(-X-COOM)n