Patent application number | Description | Published |
20080220358 | COLORING COMPOUND AND YELLOW TONER CONTAINING THE COLORING COMPOUND - Provided are a coloring compound for color toner which satisfies all of solubility in an organic solvent, a color tone, and lightfastness, and does not inhibit the polymerization of a polymerizable monomer when used in a polymerized toner, and a yellow toner using the coloring compound and achieving compatibility between a good color tone and excellent lightfastness, in which, the coloring compound has a structure represented by the following formula (1). | 09-11-2008 |
20080299482 | METHOD OF MANUFACTURING AQUEOUS DISPERSION OF RESIN FINE PARTICLES, AQUEOUS DISPERSION OF RESIN FINE PARTICLES, METHOD OF MANUFACTURING TONER, AND TONER - A method of manufacturing an aqueous dispersion of resin fine particles, including: a mixing step of mixing an aqueous medium, a resin having an acid group, a basic substance, and a surfactant to obtain a mixture; an emulsification step of applying a shearing force to the mixture while heating at temperature 10.0° C. or more higher than a softening temperature (Tm) of the resin having the acid group to obtain an emulsified product; and a cooling step of obtaining an aqueous dispersion of resin fine particles by cooling the emulsified product, in which, in the cooling step, cooling is carried out at a cooling rate of 0.5° C./min or more to 10.0° C./min or less to a glass transition temperature (Tg) of the resin having the acid group or lower while a shearing force is applied. | 12-04-2008 |
20090075193 | COLORING COMPOUND, YELLOW TONER, SHEET FOR HEAT-SENSITIVE TRANSFER RECORDING, AND INK - A coloring compound is provided which is excellent in coloring ability and transparency, has high solubility in organic solvents, and is superior in light resistance. A toner, a sheet for heat-sensitive transfer recording and an ink that use the coloring compound are also provided. The coloring compound is represented by the following general formula: | 03-19-2009 |
20100028794 | AQUEOUS DISPERSION OF FINE RESIN PARTICLES, METHOD FOR PRODUCING AQUEOUS DISPERSION OF FINE RESIN PARTICLES, AND METHOD FOR PRODUCING TONER PARTICLES - The present invention provides an aqueous dispersion of nonspherical fine resin particles having excellent storage stability and processability such as aggregation and adherence to other substances, a method for producing the aqueous dispersion of fine resin particles, and a method for producing toner particles using the aqueous dispersion of fine resin particles. The present invention relates to an aqueous dispersion of fine resin particles characterized in that the fine resin particles are nonspherical particles with an average minor axis being 0.02 μm or more and 1.00 μm or less and an average ratio of a major axis to a minor axis being 2.0 or more and 5.0 or less, a method for producing the aqueous dispersion of fine resin particles, and a method for producing toner particles using the aqueous dispersion of fine resin particles. | 02-04-2010 |
20100035171 | YELLOW TONER - Provided is a yellow toner having toner particles each containing at least a binder resin, a colorant, and a polar resin, the yellow toner being characterized in that: the colorant is a coloring compound having a specific structure; in a microscopic compression test at a measurement temperature of 25° C., the toner has a recovery ratio Z(25) of 40 to 80%; and the toner has a glass transition temperature (TgA) measured with a differential scanning calorimeter (DSC) of 40° C. to 60° C. and a temperature (P1) of the highest endothermic peak measured with the DSC of 70° C. to 90° C., and the temperature (P1) of the highest endothermic peak and the glass transition temperature (TgA) satisfy the relationship of 15° C.≦P1−TgA≦50° C. | 02-11-2010 |
20100266944 | PIGMENT, METHOD OF PRODUCING PIGMENT, PIGMENT DISPERSION, AND YELLOW TONER - A pigment represented by the following formula has a CuKα characteristic X-ray diffraction spectrum having, when θ represents a Bragg angle, a peak at 2θ±0.20 degrees equal to 10.0 degrees and a peak at 2θ±0.20 degrees equal to 11.1 degrees, the intensity ratio of the 11.1 degree peak to the 10.0 degree peak being 0.7 or more: | 10-21-2010 |
20100266945 | PIGMENT, METHOD FOR MANUFACTURING THE SAME, PIGMENT DISPERSION, AND YELLOW TONER - A pigment has a compound expressed by Formula (1). The pigment has a number average primary particle size of 30 to 70 nm and has a CuKα characteristic X-ray diffraction spectrum having, when θ represents a Bragg angle, a peak at 2θ±0.20° equal to 10.0° and a peak at 2θ±0.20° equal to 11.1°, the intensity ratio of the 11.1° peak to the 10.0° peak being 0.1 to 0.6. | 10-21-2010 |
20100273101 | YELLOW TONER - To provide a yellow toner satisfying good toner particles and a superior coloring power, the toner has toner base particles having at least a binder resin, a colorant and a wax component, and contains as the colorant at least a coloring matter compound represented by the following general formula (1) and a pigment represented by the following formula (2). | 10-28-2010 |
20100308285 | NOVEL COLORANT COMPOUND AND BLUE RESIST COMPOSITION FOR USE IN COLOR FILTER CONTAINING THE SAME - The present invention provides (I) a method of manufacturing a triphenylmethane colorant that can suppress the sub-reactions in conversion to a sulfonamide and is industrially advantageous, (II) a colorant compound that has both excellent spectral characteristics and a high solubility relative to organic solvents or polymers as a coloring agent to be used in color filters and (III) a blue resist composition for use in a color filter that shows a high lightness and an excellent hue particularly for blue color and can be used to display an image that is excellent in terms of spectral characteristics and contrast. | 12-09-2010 |
20120040285 | TONER PRODUCTION PROCESS AND TONER - A process for producing a core-shell toner is provided in which the toner has core particles containing at least a binder resin ( | 02-16-2012 |
20120094226 | AZO COMPOUND, AND PIGMENT DISPERSANT, PIGMENT COMPOSITION, PIGMENT DISPERSION AND TONER INCLUDING THE AZO COMPOUND - There is provided a colorant compound improved in the dispersibility of an azo pigment into a water-insoluble solvent. The colorant compound is represented by the following general formula (1). R | 04-19-2012 |
20120231388 | AZO COMPOUND, AND PIGMENT DISPERSANT, PIGMENT COMPOSITION, PIGMENT DISPERSION AND TONER INCLUDING THE AZO COMPOUND - There is provided an azo compound for improvement in the dispersibility of an azo pigment into a water-insoluble solvent. The azo compound is represented by the following general formula (1): | 09-13-2012 |
20130095421 | TONER INCLUDING COMPOUND HAVING BISAZO SKELETON - An object of the present invention is to provide a toner having high dispersibility of an azo pigment in a binder resin and a good color tone, having suppressed image fogging and high transfer efficiency, and providing a stable image for a long time. The toner including toner base particles, each of which includes: at least a binder resin, a compound in which a specific bisazo skeleton unit bonds to a specific polymer resin unit, and an azo pigment as a colorant. | 04-18-2013 |
20130122413 | AZO COMPOUND, PIGMENT DISPERSANT CONTAINING THE AZO COMPOUND, PIGMENT COMPOSITION, PIGMENT DISPERSION, AND TONER - A novel compound that can improve the dispersibility of an azo pigment in a non-water-soluble solvent is provided, which is represented by the following formula (1): | 05-16-2013 |
20130130164 | POLYESTER, PIGMENT COMPOSITION, AND TONER - Provided is a pigment dispersant for improving the dispersibility of an azo pigment for a water-insoluble solvent. More specifically, provided is a polyester, including at least one unit represented by one of the following formula (1) and the following formula (2): | 05-23-2013 |
20130224644 | BLACK TONER CONTAINING COMPOUND HAVING AZO SKELETON - A toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure are linked, and carbon black. | 08-29-2013 |
20130224645 | MAGENTA TONER CONTAINING COMPOUND HAVING AZO SKELETON - A toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure, and a magenta pigment. | 08-29-2013 |
20130224646 | CYAN TONER CONTAINING COMPOUND HAVING AZO SKELETON - A cyan toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure, and a phthalocyanine pigment serving as a colorant. | 08-29-2013 |
20130224647 | TONER - Provided is a toner manufactured in an aqueous solvent, whereby a satisfactory image density can be obtained and the toner laid-on level on a recording medium can be reduced with a normal added concentration of pigment without adding a large quantity of pigment to the toner. The toner is manufactured in an aqueous medium by the suspension polymerization or dissolution suspension method and contains a binder resin, a pigment and an azo compound. The azo compound is a specific azo compound, and the absolute value of the difference in zeta potential between the binder resin and the azo compound is 25 mV or less. | 08-29-2013 |
20130244165 | TONER - A toner is provided that, even in a small amount thereof, gives a satisfactory image density and that is free of image problems, e.g., fogging and offset resistance, even during long-term use and in a high-temperature, high-humidity environment. The toner contains a binder resin, a pigment, and a prescribed azo compound wherein, designating as (A) the solubility of the azo compound in a toluene-hexane solubility test and as (B) the solubility of the binder resin constituting the toner in the toluene-hexane solubility test, the (A) and the (B) satisfy the relationship |(B)−(A)|≦60. | 09-19-2013 |
20140113229 | MAGENTA TONER AND METHOD FOR PRODUCING THE SAME - An object of the present invention is to provide a magenta toner having high dispersibility of a colorant and good spectral characteristics. | 04-24-2014 |
20140113231 | PIGMENT DISPERSION, AND RESIST COMPOSITION FOR COLOR FILTER AND INK COMPOSITION EACH USING THE PIGMENT DISPERSION - 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: | 04-24-2014 |
20140235775 | COMPOUND HAVING BISAZO SKELETON, PIGMENT DISPERSANT CONTAINING THE COMPOUND, PIGMENT COMPOSITION, PIGMENT DISPERSION, INK AND RESIST COMPOSITION FOR COLOR FILTER - An object of the present invention is to provide a pigment dispersant in which dispersibility of an azo pigment in a water-insoluble solvent is improved, and to provide an azo pigment composition in which the azo pigment has high dispersibility in a water-insoluble solvent. The present invention provides a compound used as a pigment dispersant and having a structure in which a specific bisazo skeleton unit bonds to a specific polymer resin unit. | 08-21-2014 |
20140308610 | TONER AND METHOD FOR MANUFACTURING TONER PARTICLES - The present invention provides a toner that contains an azo pigment well-dispersed in a binder resin and has a satisfactory color tone. | 10-16-2014 |
20140326931 | NOVEL COMPOUND HAVING BISAZO DYE SKELETON, PIGMENT COMPOSITION CONTAINING THE SAME, PIGMENT DISPERSION, INK, AND COLOR FILTER RESIST COMPOSITION - The present invention provides a pigment dispersant that can improve the dispersion of an azo pigment in a water-insoluble solvent. | 11-06-2014 |
20140356779 | BLACK TONER CONTAINING COMPOUND HAVING AZO SKELETON - Provided is a black toner which has improved dispersibility of carbon black in a binding resin and has a high coloring power. Also provided is a black toner which suppresses fogging and has high transfer efficiency. The toner includes a toner particle containing a binding resin, a compound in which a polymer moiety is bound to an azo skeleton, and carbon black as a coloring agent. | 12-04-2014 |
20140377697 | CYAN TONER CONTAINING COMPOUND HAVING AZO SKELETON - An object of the present invention is to provide a cyan toner having a high coloring ability, enabling suppression of fogging, and having high transfer efficiency. The object can be attained by a toner including toner particles containing a binder resin, a compound having a polymeric portion bound to an azo skeleton, and a phthalocyanine pigment as a colorant. | 12-25-2014 |
20150024321 | NOVEL COMPOUND HAVING AZO SKELETON AND PIGMENT DISPERSANT, PIGMENT COMPOSITION, PIGMENT DISPERSION, AND TONER CONTAINING THE COMPOUND - To provide an azo compound which improves the dispersibility of an azo pigment in a non-water soluble solvent. | 01-22-2015 |
20150064618 | BLACK TONER CONTAINING COMPOUND HAVING AZO SKELETON - A toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure are linked, and carbon black. | 03-05-2015 |
20150079515 | MAGENTA TONER CONTAINING COMPOUND HAVING AZO SKELETON - A toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure, and a magenta pigment. | 03-19-2015 |