Abstract: An object of the present invention is to provide a dioxazine pigment having excellent fluidity. More specifically, an object of the present invention is to provide a dioxazine pigment in which practically sufficient fluidity is attained in both (1) initial viscosity and (2) storage stability when the dioxazine pigment is used in a printing ink application. The object is attained by providing a dioxazine pigment having a contact angle with respect to water according to an infiltration rate method in a range of 30° to 75°, and a contact angle with respect to 1-bromonaphthalene according to an infiltration rate method in a range of 30° to 75°.

Abstract: A quinacridone solid solution pigment that allows a colored product to have high chroma and a properly yellowish hue and has a controlled particle diameter, and a method for producing the quinacridone solid solution pigment. In the method, a water-containing crude quinacridone solid solution is produced by a co-cyclization reaction of a diarylaminoterepththalic acid and a dialkylarylaminoterephthalic acid in polyphosphoric acid, then the resulting water-containing crude quinacridone solid solution having a mass ratio of unsubstituted quinacridone to a 2,9-dialkylquinacridone of 85:15 to 60:40 is dried, thereby obtaining a powdery, crude quinacridone solid solution having a water content of less than 1%. Then, the resulting powdery, crude quinacridone solid solution is heated in a liquid medium that does not dissolve the crude quinacridone solid solution. Also, a pigment dispersion liquid and an inkjet ink each containing the obtained quinacridone solid solution pigment are provided.

Abstract: A treatment liquid composition for ink jet pigment printing is a treatment liquid composition which is used to be adhered to a cloth and which includes a block isocyanate compound, a hydroxyethyl cellulose, and a cationic compound.

Abstract: A method for expressing multiple types of numerical information using the features of SERS-active nanostructures is disclosed. The method includes: associating a SERS signal with numerical information; applying, to one or more positions a, b, d on a physical object e, nanotags including an aggregate of noble metal nanoparticles with an average diameter of 100 nm or less and a Raman-active chemical substance; irradiating the applied nanotag with a laser; reading the SERS signal generated by the irradiation; and acquiring the numerical information from the read SERS signal on the basis of the association. The nanotags derive from one or more types of nanotag ink A, B, D (FIG. 1). The substance is present on the surface of or in the vicinity of the aggregate and generates SERS.

Abstract: The present invention relates to [1] a process for producing a pigment water dispersion liquid of polymer particles containing an azomethine metal complex pigment (A), said process including the step of subjecting a mixture containing the azomethine metal complex pigment (A), an uncrosslinked aromatic group-containing polymer (b) and water to dispersion treatment using a medialess disperser at an accumulated input energy of not more than 5.0 kWh/kg, [2] a pigment water dispersion liquid containing an azomethine metal complex pigment (A) and a polymer dispersant (B), in which in an optical absorption spectrum of the pigment water dispersion liquid, a ratio of a maximum absorbance (A1max) in a wavelength range of not less than 440 nm and less than 465 nm to a maximum absorbance (A2max) in a wavelength range of not less than 420 nm and less than 440 nm [(A1max)/(A2max)] is not less than 1.000, and [3] a water-based ink for ink-jet printing, containing the aforementioned pigment water dispersion liquid.

Abstract: An ink composition for inkjet printing organic light-emitting diodes and a method of manufacturing the same are disclosed. The ink composition includes 0.01-40% of bipolar light emission component, 10-99.9% of solvent, 0.01-5% of surface tension modifier, and 0.01-5% of viscosity modifier by weight. The method of manufacturing the ink composition includes steps of: dispersing the bipolar light emission component in the solvent firstly, and then adding the viscosity modifier and the surface tension modifier under stirring, so as to obtain the ink composition. By using the ink composition, specific hole and electron transport layers provided in the organic light-emitting diode manufactured by inkjet printing may be omitted, thereby simplifying the structure of the organic light-emitting diode. Moreover, the ink composition has suitable viscosity, surface tension, and volatility.

Abstract: Disclosed herein are compositions (e.g.

Abstract: The invention provides a novel class of natural azaphilone pigments, called atrorosins, and methods for their production. The methods for the production of atrorosins include production by fermentation using a fungal species belonging to the genus Talaromyces, preferably the species Talaromycesatroroseus. The use of the novel atrorosins pigments as a colouring agent for food items and/or non-food items, and for cosmetics.

Abstract: The invention relates to a water-based ink composition for drop-on-demand (DoD) printing technology, which is intended for glazing and decorating ceramic products and provides colour or ceramic effects on ceramic supports once it has been fired at temperatures between 850° C. and 1280° C.

Abstract: The invention provides a lighting device including a light source configured to generate light source light and a light converter configured to convert at least part of the light source light into visible converter light. The light converter includes a matrix containing a luminescent material based on derivatives of benzimidazoxanthenoisoquinolinone. The lighting device may include a further luminescent material.

Abstract: The present disclosure is drawn to a dispersed magenta pigment blend, including a first pigment including Pigment Violet 19 and Pigment Red 122, or Pigment Red 282; and a second pigment including Pigment Red 150. The weight ratio of the first pigment to the second pigment can be from 50:50 to 80:20 by pigment solids content.

Abstract: A method for producing a halogenated organic pigment comprising a halogenation step of halogenating an organic pigment with a halogenating agent, wherein the halogenating agent comprises one or more N-haloimide compounds selected from the group consisting of trichloroisocyanuric acid, a metal salt of dichloroisocyanuric acid, tribromoisocyanuric acid, and a metal salt of dibromoisocyanuric acid. According to the present invention, a method for producing a halogenated organic pigment which does not use high toxic raw materials, does not generate a large amount of unfavorable by-products such as hydrogen halide gas and succinimide, and is excellent in terms of safety and productivity can be provided.

Abstract: Yellow metal azo pigments based on adducts of at least two metal azo compounds provide improved dispersion properties and are of excellent suitability for pigmentation of pigment preparations for a broad field of use.

Abstract: A phase change ink composition suitable for high speed ink jet printing, including printing on coated paper substrates. In embodiments, the phase change ink composition comprises both a crystalline compound and an amorphous compound, and optionally, a colorant, which provides for a robust ink. The crystalline compound is an amide and the amorphous compound is an ester of tartaric acid.

Abstract: Inkjet ink contains a pigment, a hydrosoluble solvent, and water, wherein the pigment is represented by the following chemical formula 1 and has a CuK? X-ray diffraction spectrum having a wavelength of 1.541 ? such that no main peak is observed at a Bragg (2?±0.2°) angle in a range of 2? of from 28.0° to 29.0°, wherein R represents a hydrogen atom, a methyl group, or a chlorine atom.

Abstract: An ink composition contains a pigment represented by the following chemical formula 1; a hydrosoluble solvent; and water, wherein the pigment satisfies the following relation 1:0.040<Y/X<0.200 (Relation 1), where, in a CuK? X-ray diffraction spectrum having a wavelength of 1.541 ?, X represents a peak intensity at a Bragg (2?±0.2°) angle in a range of 2? of from 26.5° to 27.5° and Y represents a peak intensity at a Bragg (2?±0.2°) angle in a range of 2? of from 11.0° to 11.

Abstract: Provided is an ink composition used in active energy ray-curable inkjet printing, which has excellent curing property, discharge property, storage stability, and compatibility with various substrates. The inkjet ink composition of the present invention includes at least two types of polymerizable compounds selected from a group consisting of (A) 2-(2-vinyloxyethoxy) ethyl acrylate, (B) N-vinyl caprolactam, and (C) at least one type of bifunctional acrylate monomer including at least a diacrylate having a molecular weight of 250 or less.

Abstract: The present invention relates to a new family of luminescent pigments consisting of a salt of two ruthenium(II) complex ions of opposite sign charges comprising N-chelating heterocyclic ligands and to their use in security applications to prevent counterfeiting. The invention also refers to ink compositions and to the security documents or secured goods comprising said luminescent pigments.

Abstract: The invention relates to single phase solid solutions containing 65 to 98 wt.-% unsubstituted quinacridone, 1 to 34 wt.-% 2,9-dimethylquinacridone and 1 to 10 wt.-% 2,9-dichloroquinacridone, relative to the total weight of the single phase solid solution.

Abstract: Inkjet ink contains water, hydrosoluble organic materials; and a colorant, wherein the hydrosoluble organic materials account for 30% by weight to 50% by weight of the inkjet ink, wherein the hydrosoluble organic materials contain 3-methoxy-1-butanol, herein the hydrosoluble organic materials contain at least one of 1,3-butane diol, 3-methyl-1,3-butane diol, 1,2-butane diol, 2,3-butane diol, 1,2-pentane diol, 3-methyl-3-hydroxymethyl oxetane, 1,2-propane diol, or 1,3-propane diol in an amount of 1% of the inkjet ink.

Abstract: To provide a pigment dispersion excellent in dispersibility and spectral characteristics. The pigment dispersion at least includes: a dispersion medium; a compound represented by a general formula (1), the compound being dispersed in the dispersion medium; and a pigment having a quinacridone skeleton, the pigment being dispersed in the dispersion medium: in the general formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group.

Abstract: To provide a radiation-curable inkjet ink set that has a sufficiently wide color gamut and is excellent in terms of mechanical strength and substrate adhesion of cured ink, and an inkjet recording method employing the ink set. A radiation-curable inkjet ink set comprises a yellow ink comprising C.I. Pigment Yellow 185 at 1.5 to 2.5 mass %, and a magenta ink comprising C.I. Pigment Red 48:4 at 1.5 to 2.5 mass %.

Abstract: An inkjet ink set consisting of a black inkjet ink, a cyan inkjet ink and two inkjet inks A and B, optionally complemented by a white ink and/or a colourless ink, wherein the inkjet ink A has a hue angle H* between 70 and 85 and a chroma C* between 30 and 80; the inkjet ink B has a hue angle H* between 20 and 40 and a chroma C* between 30 and 80; and the CIE L* a* b* coordinates were determined on polyethylene coated white paper for a 2° observer under a D50 light source.

Abstract: Non-aqueous pigment dispersions exhibiting improved dispersion quality and/or stability were prepared for a specific selection of naphthol AS pigments, diketopyrrolo-pyrrole pigments and quinacridone pigments, by using specific yellow monoazo dispersion synergists. The non-aqueous pigment dispersions can be advantageously used in inkjet inks inkjet printing methods.

Abstract: An ink formulation comprises a binder and at least one marking component, which comprises at least one metal oxides or oxyanion and at least one oxidizing/reducing agent, which absorbs laser irradiation between wavelengths of 780-10,600 nm, thereby causes the formulation to change color.

Abstract: Provided is a pigment particle suitable for an ink capable of recording an image that is excellent in color developability and lightfastness, and has a yellow hue. The pigment particle is a pigment particle having a structure represented by the following formula (1), in which a maximum absorption wavelength of an absorption spectrum in a wavelength region of 200 nm or more and 800 nm or less is present in a range of 340 nm or more and 360 nm or less.

Abstract: A pigment composition containing an azo pigment represented by the following general formula (1) and a pigment derivative having a hydrophilic group: wherein G represents a hydrogen atom, an aliphatic group, an aryl group, a heterocyclic group, an acyl group, an aliphatic oxycarbonyl group, a carbamoyl group, an aliphatic sulfonyl group, or an arylsulfonyl group, R1 represents an amino group, an aliphatic oxy group, an aliphatic group, an aryl group, or a heterocyclic group, R2 represents a substituent, A represents an aromatic 5- or 6-membered heterocyclic group, m represents an integer of from 0 to 5, and n represents an integer of from 1 to 4, with the general formula (1) not containing any ionic hydrophilic group.

Abstract: The present invention provides an active energy ray-curable inkjet magenta ink composition that achieves excellent color reproducibility and is also excellent in storage stability, and an ink set using the composition. The magenta ink composition according to the present invention contains, as two kinds of quinacridone pigments, (A) unsubstituted quinacridone and (B) 2,9-dimethylquinacridone.

Abstract: The ink set includes a deep black ink containing a carbon black, and a pale black ink containing the carbon black with a lower content than the deep black ink. The deep black ink further contains a first colorant and a second colorant, and the pale black ink further contains the first colorant, but does substantially not contain the second colorant. The first and the second colorant are each selected from the group consisting of cyan colorants, magenta colorants, violet colorants, and green colorants.

Abstract: An ink containing water, a water-soluble organic solvent and an organic pigment, wherein a primary particle of the organic pigment has a ratio (minor axis b)/(major axis a) of 0.70 or more and a particle diameter of 35 nm or less, the ink contains a water-soluble organic solvent with a dielectric constant of 25.0 or less in an amount of 0.5% by mass or more based on the total mass of the ink, and a dielectric constant ?mix of the ink as calculated according to the following equation (1) is 66-72: ?mix=?n?nrn/?nrn??Equation (1): wherein n means a kind of water or the water-soluble organic solvent, ?n is a dielectric constant of water or the water-soluble organic solvent represented by n, and rn is a content of water or the water-soluble organic solvent represented by n based on the total mass of the ink.

Abstract: The present invention relates to a new family of luminescent pigments consisting of a salt of two ruthenium(II) complex ions of opposite sign charges comprising N-chelating heterocyclic ligands and to their use in security applications to prevent counterfeiting. The invention also refers to ink compositions and to the security documents or secured goods comprising said luminescent pigments.

Abstract: To provide a pigment dispersion excellent in dispersibility and spectral characteristics. The pigment dispersion at least includes: a dispersion medium; a compound represented by a general formula (1), the compound being dispersed in the dispersion medium; and a pigment having a quinacridone skeleton, the pigment being dispersed in the dispersion medium: in the general formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group.

Abstract: An aqueous pigment dispersion used for preparing an ink jet recording aqueous ink comprises an anionic group-containing organic polymeric compound, an organic pigment, an organic pigment derivative, and the water, wherein the polymeric compound, the organic pigment, and the organic pigment derivative are dispersed in water, the organic pigment and the organic pigment derivative are a diketopyrrolopyrrole-based red pigment and a phthalimidoalkylated quinacridone, respectively, and the phthalimidoalkylated quinacridone content is in the range of 1.6 to 3.8% relative to the total (100%) of the diketopyrrolopyrrole-based red pigment and the phthalimidoalkylated quinacridone on a mass basis. Furthermore, there is provided an ink jet recording aqueous ink containing such an aqueous pigment dispersion, wherein the aqueous pigment dispersion is diluted such that the total of the organic pigment content and the organic pigment derivative content is from 1 to 8% on a mass basis.

Abstract: The present invention provides a pigment dispersion excellent in dispersibility. Furthermore, the present invention provides a color filter yellow resist composition and an ink composition, which include the pigment dispersion. A pigment dispersion containing at least a compound represented by General formula (1) and a yellow pigment represented by General formula (2) in a dispersion medium and a method for manufacturing the same are provided. Furthermore, a color filter yellow resist composition and an ink composition are provided, wherein images can be displayed with high spectral characteristics and high display contrast because the brightness is high and the hue of yellow is excellent.

Abstract: Provided is an active energy ray-curable inkjet ink with high productivity which has the same quality level as the conventional printing and which contains an isoindoline-based pigment having a specific electric conductance, which is measured according to DIN ISO 787/14, of 150 ?S/cm or less.

Abstract: Inkjet ink contains a pigment, a hydrosoluble solvent, and water, wherein the pigment is represented by the following chemical formula 1 and has a CuK? X-ray diffraction spectrum having a wavelength of 1.541 ? such that no main peak is observed at a Bragg (2?±0.2°) angle in a range of 2? of from 28.0° to 29.0°, wherein R represents a hydrogen atom, a methyl group, or a chlorine atom.

Abstract: The present invention provides an ink composition that contains a pigment, a dispersant, a hydrosoluble solvent; and water, wherein the pigment is represented by the following chemical formula 1: where R represents hydrogen, an alkyl group having one to three carbon atoms, or chlorine, wherein the ink composition satisfies the following relations 1 and 2: 0.050?X/Y?0.120??Relation 1 0.700?Z/Y?1.050??Relation 2 where X represents a minimum absorbance in a wavelength range of from 400 nm to 450 nm, Y represents an absorbance of a maximum peak in a wavelength range of from 500 nm to 550 nm, and Z represents an absorbance of a maximum peak in a wavelength range of from 550 nm to 600 nm.

Abstract: An active-energy-ray-curable inkjet ink composition which contains at least two polymerizable monomers each having an unsaturated bond, wherein the maximum value of the difference in electric charge of carbon atoms that constitute the unsaturated bond in each of the at least two polymerizable monomers is 0.24 to 0.46 inclusive and the total content of ions of the elements Fe, Co, Ca, Na, Mg, Al, Ti, Sn and Zn is 5.0 to 100 ppm inclusive, or the difference in e value of the unsaturated double bond moiety in each of the at least two polymerizable monomers is 2.8 to 6 inclusive, and wherein a compound which is unpolymerizable and has a substituent capable of reacting with a nucleophilic agent or an acidic compound is contained.

Abstract: A nonpolar or solid (or phase change) ink composition that includes a carrier and at least one nanoscale fluorescent pigment particle composition and/or a fluorescent organic nanoparticle composition. The fluorescent organic nanoparticle composition includes a polymeric matrix obtained by modified EA latex process and/or emulsion polymerization and one or more fluorescent dyes and the nanoscale fluorescent pigment particle composition includes pigment molecules with at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer.

Abstract: The ink set includes a yellow ink composition and either a magenta ink composition or a cyan ink composition, or both, wherein a coloring agent of the yellow ink composition is one which includes an azo pigment represented e.g. by the following formula or its tautomers or their salts or hydrates, the magenta ink composition contains as a coloring agent at least one pigment selected from the following: C.I. Pigment Violet 19, C.I. Pigment Red 122, C.I. Pigment Red 202 and C.I. Pigment Red 209, and the cyan ink composition contains as a coloring agent at least one pigment selected from the following: C.I. Pigment blue 15:1, C.I. Pigment Blue 15:2, C.I. Pigment Blue 15:3, C.I. Pigment Blue 15:4 and C.I. Pigment Blue 15:6.

Abstract: A phase change ink composition, comprising an anti-drool additive to prevent and/or reduce printhead and nozzle contamination in ink jet printers caused by drooling and fouling of the faceplate by the ink. In particular, there is provided sulfonated small molecules for use in phase change ink compositions and which are compatible with phase change ink components.

Abstract: The ink composition of the invention is applied to a region to which a color ink composition has been applied. The ink composition contains a weather resistance enhancer, is substantially free from a colorant, and is applied to a recording medium to form a coating film exhibiting an integrated value of light transmittance of not more than 2000 for each nanometer at wavelengths of 320 nm to 360 nm and an integrated value of light transmittance of not less than 36000 for each nanometer at wavelengths of 380 nm to 780 nm.

Abstract: An ink set is provided, the ink set including a yellow ink composition; and at least one of a magenta ink composition and a cyan ink composition, wherein a colorant of the yellow ink composition contains an azo pigment represented by formula (1), its tautomer, or a salt or hydrate thereof, the magenta ink composition contains at least one pigment selected from quinacridone pigments, and the cyan ink composition contains at least one pigment selected from phthalocyanine pigments: wherein Z represents atoms necessary to complete a 5- to 8-membered nitrogen-containing heterocycle; Y1, Y2, R11 and R12 each represents a hydrogen or a substituent; G1 and G2 each represents a hydrogen, an alkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; and W1 and W2 each represents an alkoxy group, an amino group, an alkyl group or an aryl group.

Abstract: Disclosed is an ink composition used in an electrowetting display device and an electrowetting display device employing the same. The ink composition used in the electrowetting display device includes a non-polar solvent and a modified hydrophobic pigment, wherein the modified hydrophobic pigment has a structure represented by Formula (I), of P-Gn wherein P is a pigment moiety, n is 1-4 and G is wherein R1 is a straight chain or a branched C4-20 alkyl group, or C5-20 cycloalkyl group.

Abstract: An ink set is provided which includes a first ink containing a first pigment, water, and a glycol ether having an HLB value, measured by Davies method, in the range of 4.2 to 8.0, and a second ink substantially not containing the glycol ether. The second ink contains a second pigment and water.

Abstract: A method of preparing a pigment includes, in order, the steps of: a) providing a pigment containing a nucleophile group under basic conditions; b) reacting the pigment with a compound according to Formula (I): wherein, X is a halogen atom or a tosylate group, and R1 and R2 independently represent an alkyl group; and c) hydrolyzing the R1-O bond and/or the R2-O bond. The obtained pigments can be used in non-aqueous pigment dispersions.

Abstract: Provided is a pigment particle suitable for an ink capable of recording an image that is excellent in color developability and lightfastness, and has a yellow hue. The pigment particle is a pigment particle having a structure represented by the following formula (1), in which a maximum absorption wavelength of an absorption spectrum in a wavelength region of 200 nm or more and 800 nm or less is present in a range of 340 nm or more and 360 nm or less.

Abstract: Provided are an azo compound represented by the following formula (1), a tautomer thereof, and a salt or hydrate of the azo compound or the tautomer: wherein in the formula (1), A represents a heterocyclic group; G represents a hydrogen atom, an aliphatic group, an aromatic group, or a heterocyclic group; R1 and R2 each independently represent a group represented by the following formula (2) or (3):

Abstract: The invention relates to single phase solid solutions containing 65 to 98 wt.-% unsubstituted quinacridone, 1 to 34 wt.-% 2,9-dimethylquinacridone and 1 to 10 wt.-% 2,9-dichloroquinacridone, relative to the total weight of the single phase solid solution.

Abstract: A pigment composition containing an azo pigment represented by the following general formula (1) and a pigment derivative having a hydrophilic group: wherein G represents a hydrogen atom, an aliphatic group, an aryl group, a heterocyclic group, an acyl group, an aliphatic oxycarbonyl group, a carbamoyl group, an aliphatic sulfonyl group, or an arylsulfonyl group, R1 represents an amino group, an aliphatic oxy group, an aliphatic group, an aryl group, or a heterocyclic group, R2 represents a substituent, A represents an aromatic 5- or 6-membered heterocyclic group, m represents an integer of from 0 to 5, and n represents an integer of from 1 to 4, with the general formula (1) not containing any ionic hydrophilic group.