Entries |
Document | Title | Date |
20080261141 | MAGENTA TONER FOR DEVELOPING ELECTROSTATIC IMAGE - A magenta toner for developing an electrostatic image composed of a binder and a colorant is disclosed. The toner contains a tone controlling agent having a peak of fluorescent spectrum from 380 to 500 nm. An image excellent in light fastness and durability can be obtained and high color reproducibility with sufficient transparency and chromaticness can be realized by the magenta toner. | 10-23-2008 |
20080299477 | ELECTROPHOTOGRAPHIC TONER AND METHOD OF MANUFACTURING ELECTROPHOTOGRAPHIC TONER - An objective is to provide a toner and a method of manufacturing the toner by which a charging amount of toner is kept maintaining to be an appropriate value for a long duration, print images with no fog, together with high density obtained even after heavy-duty printing are obtained, and no contamination within an apparatus caused by toner scattering is generated. Also disclosed is an electrophotographic toner possessing at least a resin and a colorant, wherein the colorant comprises a compound represented by Formula (1) or a lake product of the compound, and the colorant extracted from the electrophotographic toner surface has a colorant surface-exposure amount index of 0.3-0.8. | 12-04-2008 |
20090011354 | ELECTROSTATIC IMAGE DEVELOPING TONER, INVISIBLE INFORMATION TONER, ELECTROSTATIC IMAGE DEVELOPER, PROCESS CARTRIDGE AND IMAGE FORMATION APPARATUS - The invention relates to an electrostatic image developing toner comprising at least one of a phthalocyanine type compound and a naphthalocyanine type compound and at least one compound represented by the following structural formulae (1) to (10): | 01-08-2009 |
20090053641 | CHARGE CONTROL AGENT AND RELATED ART - [PROBLEMS] Providing a charge control agent that has a negative charge providing property at a practical level, is colorless to light-colored and usable in color toners, produces static charges stable to environmental changes by electrifying the resin powder of a toner and the like, is excellent in storage stability and durability, and is highly safe, as well as a method of controlling the charge of resin powder using the charge control agent, and a toner.
| 02-26-2009 |
20090075192 | Toner - Disclosed is a toner comprising a resin and a colorant, wherein the colorant comprises a compound represented by formula (I) and a compound represented by formula (II). | 03-19-2009 |
20090081574 | BLACK COLOR MATERIAL AND TONER - A black color material includes a squarylium compound represented by the following formula (1); and a blue color material: | 03-26-2009 |
20090098477 | Black Toners Containing Infrared Transmissive And Reflecting Colorants - A toner formulation is disclosed comprising a binder and an IR absorbing black pigment at a concentration of 0.25-2.0% by weight, including one or more infrared transmissive pigments, wherein the infrared transmissive pigments are configured to provide a black color. Such toner formulation may provide a response to a toner patch sensor to indicate a mass per unit area of 0.1-1.5 mg/cm | 04-16-2009 |
20090162775 | INK WITH SOLID PHASE AND LIQUID PHASE - The present invention is an ink comprising a solid phase and a liquid phase wherein the solid phase comprises a polymeric binder and the liquid phase comprises oil and a pigment, the solid phase and the liquid phase forming a discrete particle having multiple domains of the liquid phase. | 06-25-2009 |
20090214974 | TONER FOR DEVELOPING ELECTROSTATIC IMAGE, FULL COLOR TONER KIT, AND IMAGE FORMATION METHOD - Disclosed is a toner for developing an electrostatic image, a full color toner kit comprising the toner and an image formation method employing the a full color toner kit, the toner comprising at least a resin and a colorant, wherein the colorant includes C.I. Pigment Blue 60 having a powder X-ray diffraction peak (2θ) at 6.3±0.2° and 13.0±0.2°. | 08-27-2009 |
20090233209 | ELECTROPHOTOGRAPHIC TONER - An electrophotographic toner is disclosed. The toner contains a compound of Formula X-1 and a copper complex compound represented by the following Formula (1), which are defined detain in the specification. | 09-17-2009 |
20090291381 | ELECTROPHOTOGRAPHIC TONER - Provided is a toner comprising toner particles containing a binder resin and coloring matters, wherein the coloring matters comprise a dye represented by Formula (X-1), a metal compound represented by Formula (1) and a quinacridone pigment represented by Formula (2): | 11-26-2009 |
20090291382 | ELECTROSTATIC LATENT IMAGE DEVELOPING TONER AND METHOD OF IMAGE FORMING - An electrostatic latent image developing toner comprising at least a resin, a wax and a colorant, wherein the wax comprises 40 to 98% by mass of a first release agent comprising an ester wax and 2 to 60% by mass of a second release agent comprising a hydrocarbon having at least one of a branched chain structure and a cyclic structure; and the colorant comprises a silicon phthalocyanine represented by Formula (I): | 11-26-2009 |
20100003612 | ISOINDOLINE PIGMENTS - Isoindoline pigments of the general formula I | 01-07-2010 |
20100062357 | Pigment Preparation Based on Diketopyrrolopyrroles - The invention relates to a pigment preparation based on C.I. Pigment Red 254 content with an average particle size of between 20 and 100 nm, and to at least one pigment dispersant of formula (II). | 03-11-2010 |
20100068643 | ELECTROSTATIC-IMAGE-DEVELOPING TONER, PROCESS FOR PRODUCING ELECTROSTATIC-IMAGE-DEVELOPING TONER, ELECTROSTATIC IMAGE DEVELOPER, AND IMAGE-FORMING APPARATUS - An electrostatic-image-developing toner includes a binder resin; a colorant; a releasing agent having a melting temperature of from about 70° C. to about 100° C.; and an ethylenediaminedisuccinic acid. | 03-18-2010 |
20100081075 | MAGENTA TONER AND DEVELOPER - A magenta toner, produced by a method including suspending an oily liquid comprising a binder resin and a colorant in an aqueous medium, wherein the colorant comprises a naphthol pigment and a quinacridone pigment, and the quinacridone pigment comprises a pigment having a specific formula. | 04-01-2010 |
20100086868 | Finely Divided Epsilon-Copper Phthalocyanine Composition (Pigment Blue 15:6) For Use As Pigment - The invention relates to a pigment composition of C.I. Pigment Blue 15:6, containing 0.5% to 15% by weight of an additive of the formula (1), based on the weight of the pigment, in which R | 04-08-2010 |
20100092885 | IMAGE FORMING MATERIAL - An image forming material includes a perimidine-substituted squarylium dye that has a structure represented by the following formula (I) and shows diffraction peaks at least at Bragg angles (2θ±0.2°) of 17.7°, 19.9°, 22.1°, 23.2° and 24.9° in its X-ray powder diffraction spectrum measured by irradiation with X rays generated from a Cu target with a wavelength of 1.5405 angstroms: | 04-15-2010 |
20100099037 | TONER COMPOSITIONS AND PROCESSES - Environmentally friendly toner particles are provided which may, in embodiments, include a biodegradable semi-crystalline polyester resin and a biodegradable amorphous polyester resin. | 04-22-2010 |
20100099038 | ELECTROSTATIC IMAGE DEVELOPING TONER, ELECTROSTATIC IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS - An electrostatic image developing toner includes a binder resin; and a pigment having a complementary relationship with a color hue of the binder resin, the pigment being contained in an amount of about 1 ppm or greater but not greater than about 20 ppm. | 04-22-2010 |
20100104966 | CRYSTAL PHASE OF A BENZIMIDAZOLONE AZO PIGMENT - The invention relates to a new γ crystal modification of the pigment of formula (I) characterized by a CuK | 04-29-2010 |
20100119966 | Diketopyrrolopyrrole Cocrystals With High Transparency - The present invention relates to a pigment composition composed of compounds of the formula (I), (II) and (III) with a novel crystal modification, to their preparation and to the use of this novel product as a pigment. For many applications of organic pigments, for example the coloring of metallic lacquers or the use thereof in color filters, a very high transparency is required. To produce color filters, for example, particularly fine pigments are used, in order to substantially rule out the particle scattering which leads to a lowering of the contrast ratio. The commercially available products, however, do not always meet all requirements of the art. More particularly, there was a need for improvement with regard to the transparency and the associated fineness of the pigment crystals, and also the color purity (chroma). | 05-13-2010 |
20100196816 | Pigment Preparations Based on Dioxazines - The invention relates to a pigment preparation characterized by a content of a) a dioxazine compound of Formula (I) as the basic pigment; and b) a dioxazine compound of the general Formula (II) as a pigment dispersing agent Q-[Y—X] | 08-05-2010 |
20100221654 | Pigment Preparations Based on C.I. Pigment Blue 15,6 - The invention relates to novel fine-particle pigment preparations comprising fine-particle C.I. Pigment Blue 15:6 as a base pigment and pigment dispersants of formula (II) wherein CPC is a radical of a copper phthalocyanine, n is a number between 0.1 and 4, preferably between 0.2 and 2; m is number between 0.1 and 4, preferably 0.2 and 2; Kat is a cation from the group of alkali metals or H | 09-02-2010 |
20100255415 | TONER - The object aims to improve the reproducibility of color and the stability in density of a toner. Disclosed is a toner comprising at least a resin and a colorant, wherein the colorant comprises a compound represented by general formula (1) and a compound represented by general formula (2). [In general formula (1), R | 10-07-2010 |
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 |
20110008723 | TONER COLORANT, ELECTROPHOTOGRAPHIC TONER, TWO-COMPONENT DEVELOPER, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic toner which is produced by a pulverization method or generated in an aqueous medium, and which includes at least a colorant and a binder reasin, wherein the colorant includes at least a pigment represented by General Formula (1) described below and a fatty acid amide compound, | 01-13-2011 |
20110020745 | Electrostatic Image Developing Toner - The present invention relates to, in the toner including toner particles having a biding agent resin, colorings and a release agent, an electrostatic image developing toner, its composition, and a preparation method thereof. The electrostatic image developing toner is prepared by the method comprising:
| 01-27-2011 |
20110045397 | CHARGE CONTROL AGENT AND RELATED ART - A charge control agent having a compound represented by the formula shown below as the active ingredient, as well as a method of controlling the charge of resin powder using the charge control agent, and a toner. | 02-24-2011 |
20110091804 | Copper Phthalocyanine Pigment Preparation - The invention relates to a pigment preparation, comprising (a) pigmentary copper phthalocyanine of the beta phase, characterized by a mean particle size d | 04-21-2011 |
20110123919 | ELECTROPHOTOGRAPHIC TONER AND METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC TONER - A decolorable electrophotographic toner, which is produced by forming a coloring agent that imparts a color to the toner by heating a leuco dye and a color development and erasure controlling agent having a color developable structure that develops a color by reacting with the leuco dye and also having a decolorable structure that erases the color by inhibiting the contact of the leuco dye with the color developable structure in a dispersion liquid, thereby developing a color, pulverizing the coloring agent in the dispersion liquid by a high-pressure pulverization method, obtaining coloring agent particles maintained in a color developed state by cooling the pulverized coloring agent in the dispersion liquid to a temperature lower than the melting initiation temperature of the color development and erasure controlling agent at a cooling rate at which the color development and erasure controlling agent is not crystallized, and aggregating and fusing the coloring agent particles, binder resin particles, and release agent particles. | 05-26-2011 |
20110183250 | DEVELOPING AGENT - According to one embodiment, a developing agent includes toner particles containing a coloring agent, a binder resin, and a moisturizing agent, and an additive which is added to the surfaces of the toner particles is provided. The moisturizing agent is added in an amount of from 5 to 20% by weight based on the weight of the toner particles. Further, the developing agent satisfies the following formula (1) C=A×B≧10. In the formula (1), A represents the volume average particle diameter of the toner particles (μm), B represents the addition amount of the additive (% by weight), and C represents a coverage factor. | 07-28-2011 |
20110200930 | PROCESSES FOR PRODUCING POLYESTER LATEXES VIA SOLVENT-BASED AND SOLVENT-FREE EMULSIFICATION - A process for making a latex emulsion suitable for use in a toner composition includes contacting at least one polyester resin optionally with an organic solvent to form a resin mixture, adding a primary amine, optionally a surfactant, and deionized water to the mixture. | 08-18-2011 |
20110217645 | TONER COMPOSITIONS AND METHODS - A toner and method for making a toner that includes an amorphous resin, a crystalline resin, and a cyanine dye. The cyanine dye improves heat cohesion without negatively effecting other desirable properties. | 09-08-2011 |
20110300481 | PYRAZOLOTRIAZOLE COMPOUND AND ELECTROPHOTOGRAPHIC TONER - A compound represented by Formula (X-1) is disclosed. | 12-08-2011 |
20110311911 | METHOD OF PROVING AUTHENTICITY, SIGNAL CONVERSION METHOD, POLYMER WELDING METHOD, METHOD OF PRODUCING LITHOGRAPHIC PRINTING PLATE, INK FOR PRINTING, TONER, AND HEAT RAY-SHIELDING MATERIAL, EACH USING NAPHTHALOCYANINE COMPOUND, AND METHOD OF PRODUCING NAPHTHALOCYANINE COMPOUND - Disclosed is a method of proving the authenticity of goods or a support comprising using a compound represented by Formula (I). | 12-22-2011 |
20120208119 | TONER FOR ELECTROPHOTOGRAPHY AND TONER SET - A toner for electrophotography characterized in that, when a monochromatic image of the toner for electrophotography is formed and the reflection absorption spectrum thereof is measured, said reflection absorption spectrum shows a maximum density within a range of 600-700 nm, and, excluding the light absorption by a substrate, the maximum density (Dm) of said reflection absorption spectrum, the density thereof at 570 nm (D(570)) and the density thereof at 530 nm (D(530)) satisfy the following requirements, and a toner set for electrophotography: 1.4≦Dm≦3.5, D(570)≧0.55 and 4.5≦D(570)/D(530)≦12. | 08-16-2012 |
20120237868 | TONER, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE - A toner including a binder resin, a colorant, and a release agent is provided. The toner has a peak loss tangent (tan δ) value of 3 or more within a temperature range of 80 to 160° C. Here, the loss tangent (tan δ) is a ratio (G″/G′) of a loss elastic modulus (G″) to a storage elastic modulus (G′). The toner provides a good combination of low-temperature fixability, hot offset resistance, storage stability, coloring power and/or opacifying power, and gloss. | 09-20-2012 |
20130029262 | MAGENTA POLYMERIZED TONER - This disclosure relates to magenta polymerized toner comprising magenta pigment selected from quinacridone-based derivatives and magenta pigment selected from diketo-pyrrolopyrrole derivatives, having high transfer efficiency, high image density, and uniform particle distribution. | 01-31-2013 |
20130108952 | COLORED RESIN POWDER AND TONER USING THE COLORED RESIN POWDER | 05-02-2013 |
20130122412 | ERASABLE ELECTROPHOTOGRAPHIC TONER CONTAINING ORGANIC WHITE PIGMENT AND METHOD OF PRODUCING THE SAME - An erasable electrophotographic toner includes a binder resin, a near-infrared absorbing material, a decolorizing agent and an organic white pigment. | 05-16-2013 |
20130157191 | TONER FOR ELECTROPHOTOGRAPHY AND IMAGE-FORMING METHOD - The present invention provides a toner for electrophotography capable of achieving high color reproducibility in a wide brightness region ranging from high to low brightness. This toner for electrophotography containing a compound represented by general formula (X-1) is characterized in that when the toner image formed exclusively from the toner is at maximum saturation, the hue angle (H) of the toner in a CIE L*a*b* color space is within the range of 341°≦H≦351°. [Formula 1] (In the formula: one of Rx1 and Rx2 is a methyl group or an ethyl group, while the other represents an alkyl group with C12 or less optionally substituted by a group including an oxygen atom, or a 5- or 6-membered aliphatic ring optionally substituted by a group including an oxygen atom connecting a nitrogen atom and Rx1 and Rx2; and GX2 represents an alkyl group optionally substituted by a group including an oxygen atom.) | 06-20-2013 |
20130171554 | YELLOW TONER AND COLOR IMAGE FORMING METHOD - A yellow toner including: a non-crystalline resin; C.I. Pigment Yellow 185; and a releasing agent, wherein the yellow toner has a glass transition temperature of more than 18° C. but less than 40° C. | 07-04-2013 |
20130189613 | METAL COMPLEX PIGMENT-CONTAINING TONER FOR ELECTROPHOTOGRAPHY AND METHOD FOR PRODUCING THE SAME - Disclosed is a metal complex pigment-containing toner, wherein a pigment dispersion index (A) determined as a standard deviation of an X-ray fluorescence intensity, per unit area of toner particle surface, of a central metal of the metal complex pigment contained in the toner is less than 2 [cps/(KeV·μm | 07-25-2013 |
20130260306 | PRODUCTION PROCESS FOR COLORANT, COLORANT COMPOSITION, TONER, INK FOR INK JET RECORDING AND COLOR FILTER - Provided is a production process for a colorant which contains a silicon phthalocyanine compound making it possible to reach a targeted particle diameter even by a conventional dispersing method and which is excellent in performances such as a color reproducibility, a light fastness, an electrostatic property, a transparency and the like, and a colorant composition, a toner, an ink for ink jet recording and a color filter which are excellent in the above performances. | 10-03-2013 |
20130266895 | CHARGE CONTROL AGENT AND TONER USING SAME - The present invention provides a charge control agent containing, as an active substance(s), one or two or more hydantoin derivatives represented by the following formula (1): | 10-10-2013 |
20130302729 | Toner wash comprising ionic liquid - A washing process using one or more ionic liquids (ILs) as a washing aid agent for toners, including toners produced using such ILs, such as, low melt toners, is provided. ILs are environmentally sound, green solvents that act to swell toner particle surfaces so that surface absorbed and adsorbed pollutants, such as, surfactants and other manufacturing reactants, can be effectively removed. The resulting toners have good charging, charge maintenance and RH sensitivity. | 11-14-2013 |
20140004458 | MAGENTA TONER | 01-02-2014 |
20140057202 | TONER AND METHOD OF PRODUCING TONER - The present invention provides a toner that exhibits an excellent chromogenicity and provides a method of producing a toner that has an excellent particle size distribution and an excellent chromogenicity, in which a toner containing a binder resin and a colorant that contains a coloring compound with general formula (1), and a method of producing this toner. | 02-27-2014 |
20140057203 | TONER AND TONER PRODUCTION METHOD - The present invention provides a toner having superior color development property and a method of producing a toner having favorable particle size distribution and color development property, in which the toner containing a binder resin and a colorant that contains a phthalocyanine pigment represented by general formula (1), and the method for producing the toner. | 02-27-2014 |
20140080049 | YELLOW TONER - To provide a yellow toner having a colorant in a good dispersed state, obtained through excellent granulation performance and having stable developing performance, the yellow toner contains a binder resin, a wax and a colorant, and is characterized by containing as the colorant a compound represented by the following general formula (1) and a compound represented by the following general formula (2). | 03-20-2014 |
20140093819 | ELECTROPHOTOGRAPHIC TONER - A decolorable electrophotographic toner, containing a color former compound, a color developing agent, a binder resin, and a release agent, wherein the toner has a pH of from 6 to 9 when dispersed in water with a pH of from 5.5 to 7 at a mass ratio of toner/water of 1/10. | 04-03-2014 |
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 |
20140162181 | Black Toner - The present disclosure describes a black single component toner with desirable fusing performance. | 06-12-2014 |
20140162182 | MAGENTA TONER - An object of the present invention is to provide a magenta toner having high lightness and saturation and having spectral reflection properties having a wider color range. | 06-12-2014 |
20140162183 | TONER - The present invention provides a toner excellent in light resistance. The toner includes toner base particles, each of which contains a binder resin, a wax and a coloring agent, and a coloring matter compound represented by the general formula (1) is contained as the coloring agent. | 06-12-2014 |
20140170551 | Tunable Gloss Toner - The disclosure describes an emulsion aggregation toner process wherein aspartic acid derivatives are employed as chelating agents. Also disclosed is a process for preparing toner using aspartic acid derivatives to freeze/stop toner particle growth where coalescence occurs following acidification of the reaction mixture. | 06-19-2014 |
20140170552 | TONER - The toner includes toner base particles, each of which contains a binder resin, a wax and a coloring agent, and a coloring matter compound represented by the general formula (1) is contained as the coloring agent. | 06-19-2014 |
20140186762 | TONER - A toner having good environmental stability, low-temperature fixability, development durability, and storage stability is provided. A toner includes toner particles each including a surface layer that contains an organic silicon polymer. The organic silicon polymer is obtained by polymerizing a compound having a specific structure. The surface layers have a particular average thickness Dav. In mapping by focused-ion-beam time-of-flight secondary ion mass spectroscopy, a ratio of silicon ions to carbon ions released from the toner particles upon irradiation of toner particle surfaces with primary ions is a particular value. | 07-03-2014 |
20140315127 | Single Component Developer Composition - Emulsion aggregation toner comprising: a resin; a wax; a colorant; an encapsulating shell; and a silica external additive comprising: first silica particles comprising fumed silica particles surface treated with octyldimethylsiloxane and having average particle diameter about 6-20 nm, present in amount of about 0.1-1% by weight of the toner; second silica particles comprising colloidal silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 80-200 nm, present in amount of about 1-2% by weight of the toner; third silica particles comprising fumed silica particles surface treated with polydimethylsiloxane and having average particle diameter about 25-65 nm, present in amount of from about 0.5-1.5% by weight of the toner; and fourth silica particles comprising fumed silica particles surface treated with hexamethyldisiloxane and having average particle diameter about 25-65 nm, present in amount of about 1-2.5% by weight of the toner. | 10-23-2014 |
20140356778 | Toner Comprising Surface Modified Colorant - A toner including a resin; an optional wax; and a colorant; wherein the colorant has disposed thereon a reactive component having at least one cross-linkable carbon-carbon double bond and wherein the tribo electric charge of the toner is adjusted through surface treatment of the colorant with the reactive component. Also a colorant having disposed thereon a reactive component having at least one cross-linkable carbon-carbon double bond, wherein the reactive component disposed on the colorant is selected from the group consisting of methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate, cyclohexyl methacrylate, stearyl methacrylate, acrylic acid, methacrylic acid, maleic acid, hydroxyethyl methacrylate, hydroxypropyl acrylate, glycidyl acrylate, alkoxymethylol acrylamide, styrene, vinyl toluene, methylstyrene, acrylonitrile, methacrylonitrile, bisphenol A glycerolate diacrylate, and mixtures and combinations thereof. | 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 |
20150044604 | TONER FOR DEVELOPING ELECTROSTATIC IMAGES - The present invention provides a toner for developing electrostatic images, which is configured to keep excellent heat-resistant storage stability, increase charge stability against environmental changes, and show excellent stability even after a long period of storage. Disclosed is a toner for developing electrostatic images, comprising an external additive and colored resin particles comprising a binder resin, a colorant and a charge control agent, wherein the charge control agent is a positively-chargeable charge control agent, and wherein the toner further contains 80 to 500 ppm of a cyano group-containing hydrocarbon compound having a molecular weight of 100 to 300. | 02-12-2015 |
20150050592 | TONER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT, METHOD OF MANUFACTURING THE SAME, AND IMAGE FORMING METHOD - The present invention relates to toner for electrostatic charge image development including a resin, a metal-containing compound, and a colorant compound precursor to be converted to a colorant compound through a reaction with the metal-containing compound by heat applied at heat fixing. According to the present invention, it is possible to provide toner for electrostatic charge image development which is excellent in fluidity and storage stability and a method of manufacturing the same. | 02-19-2015 |
20150072284 | TONER - A toner containing a resin binder, a releasing agent, and a charge control agent, wherein the resin binder contains a polyester (A) obtained by polycondensing a carboxylic acid component containing one or more succinic acid derivatives selected from succinic acids substituted with an alkyl group having 8 or more carbon atoms and 20 or less carbon atoms and succinic acids substituted with an alkenyl group having 8 or more carbon atoms and 20 or less carbon atoms, and an alcohol component, a content of the succinic acid derivative being 10% by mol or more and 30% by mol or less of a total amount of the raw material monomers of all the polyesters in the resin binder, and wherein the releasing agent contains an α-olefin based polymer obtained by polymerizing monomers containing an α-olefin having 26 or more carbon atoms and 28 or less carbon atoms in an amount of 95% by mol or more, a content of the α-olefin based polymer being 0.5 parts by mass or more and 10 parts by mass or less, based on 100 parts by mass of the resin binder. The toner of the present invention is usable in developing latent images formed in, for example, an electrophotographic method, an electrostatic recording method, an electrostatic printing method, or the like. | 03-12-2015 |
20150079514 | Surface Modification of Pigments and Compositions Comprising the Same - Disclosed herein is a method of making a modified pigment, comprising: reacting, under Mitsunobu conditions: (a) a first reactant comprising a protonated nucleophile having a pK | 03-19-2015 |
20150361205 | METHOD FOR MANUFACTURING RESIN PARTICLES AND METHOD FOR MANUFACTURING TONER PARTICLES - A method for manufacturing resin particles, including the step of producing the resin particles by using a liquid which is prepared with a resin having an ionic functional group and a pKa of 6.0 to 9.0, an organic solvent, which can dissolve the resin and which has a solubility parameter of 12.0 or less, water, and a neutralizer, wherein the neutralizer contains an acid having a pKa of 3.0 or less or a base having a pKb of 3.0 or less. | 12-17-2015 |