Patent application number | Description | Published |
20090286176 | ELECTROPHOTOGRAPHIC COLOR TONER - A set of a yellow toner, a magenta toner, a cyan toner and a black toner is disclosed. Each of the color toners contains a colored particle and cerium oxide particles, the colored particle containing an amorphous polyester resin, a crystalline polyester resin, a colorant and a releasing agent; and the yellow toner contains C.I. Pigment Yellow 74, the magenta toner contains C.I. Pigment Red 122 and C.I. Pigment Red 238, the cyan toner contains any one of C.I. Pigment Blue 15:1, C.I. Pigment Blue 15:2 and C.I. Pigment Blue 15:3, and the black toner contains carbon black and any one of C.I. Pigment Blue 15:1, C.I. Pigment Blue 15:2 and C.I. Pigment Blue 15:3. | 11-19-2009 |
20100151374 | TONER PRODUCT AND METHOD OF FORMING IMAGE - A toner product containing a toner and a toner container holding the toner, wherein the toner contains a toner particle having an amount of a carboxyl group present on a surface of the toner particle of 1.0×10 | 06-17-2010 |
20100151375 | TONER PRODUCT AND IMAGE FORMING METHOD - An objective is to provide a toner product with which the difference between the water content of a toner in a toner container and the water content of another toner present in an image forming apparatus is minimized, and a sharp charging amount distribution can be obtained to form high-quality images; and also to provide an image forming method thereof. Also disclosed is a toner product in which a toner is stored in a toner container, wherein the toner possesses a toner particle having an amount of a carboxyl group present on a surface of the toner particle, being 1.0×10 | 06-17-2010 |
20100151377 | TONER AND MANUFACTURING METHOD OF TONER - Disclosed is a toner, comprising: a noncrystalline polyester resin; a crystalline polyester resin; a release agent; and a coloring agent, wherein the toner has a domain matrix structure in which the matrix comprises the noncrystalline polyester resin and the domain comprises the crystalline polyester resin and the release agent, and wherein the crystalline polyester resin includes within the release agent. | 06-17-2010 |
20100260958 | TONER CONTAINER AND IMAGE FORMING METHOD - Provided is a toner container exhibiting reduced environmental load and excellent strength together with moldability obtained via a blow molding method, even though a large capacity of the toner container is produced, and also provided is an image forming method employing this toner container. Disclosed is a toner container of the present invention possessing a resin containing at least one of polyethylene and polypropylene formed from raw material prepared via a fermentation method. | 10-14-2010 |
20100279223 | TONER AND METHOD FOR PRODUCING TONER - Disclosed is a toner including: a toner particle including at least a resin, a coloring agent and a mold release agent, wherein an average value e of degree of circularity of the toner particle is within 0.935=e=0.982, a maximum endothermic peak temperature of the mold release agent exists within 85-98° C., the resin includes at least non-crystalline polyester and crystalline polyester, and a ratio a of multivalent carboxylic acid of trivalent or higher-valent and a ratio c of straight chain aliphatic dial are such that 12.5=a=46, 20=c=65, 0.25=a/c=1.52, the multivalent carboxylic acid of trivalent or higher-valent and/or the straight chain aliphatic dial constituting the non-crystalline polyester and/or the crystalline polyester. | 11-04-2010 |
20120064454 | PRODUCING METHOD OF TONER FOR DEVELOPING STATIC IMAGE - A method of producing a toner comprising toner particles containing a binder resin composed of a non-crystalline polyester resin having a crosslinking structure and a crystalline polyester resin is disclosed, the method comparing steps of;
| 03-15-2012 |
20120094229 | TONER FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT AND PRODUCTION METHOD THEREOF - A toner comprising toner particles containing a binder resin comprising a crystalline polyester resin, a non-crystalline polyester resin and an acryl resin having a cross-link structure, and the acryl resin having a cross-link structure has a cross-link site derived from a crosslinking agent represented by the following formula (1): | 04-19-2012 |
20120100478 | ELECTROSTATIC IMAGE DEVELOPING TONER AND PRODUCING METHOD OF THE SAME - A method of producing an electrostatic image developing toner comprising toner particles comprising a binder resin containing at least a non-crystalline polyester resin having a crosslinking structure and a crystalline polyester resin, the method comprising the steps of (a-1) preparing a crystalline polyester resin particle aqueous dispersion liquid; (a-2) preparing a polymerizable unsaturated non-crystalline polyester resin aqueous dispersion liquid; (b) preparing crosslinking non-crystalline polyester resin particles by adding a radical polymerization initiator to the aqueous dispersion liquid of particles containing the non-crystalline polyester resin having a polymerizable unsaturated bond; (c) preparing core particles by aggregating at least the particles containing the crystalline polyester resin in an aqueous medium; and (d) preparing a shell layer containing the non-crystalline polyester resin having a crosslinking structure by fusing the particles containing the non-crystalline polyester resin having a crosslinking structure on surfaces of the core particles in an aqueous medium. | 04-26-2012 |
20120107741 | ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER AND METHOD OF MANUFACTURING THE SAME - Provided is a method of manufacturing toner by which the toner capable of forming high quality images and reproducing high density gradation, which exhibits an excellent high-temperature offsetting property together with excellent low-temperature fixability, and provides appropriate gloss with respect to images to be formed, can be stably prepared; and also provided is the toner. After conducting a step in which particles made of at least a crystalline polyester resin are coagulated to form core coagulated particles, and an unsaturated amorphous polyester resin particle is attached onto the surface of each of the core coagulated particles to form core-shell type coagulated particles, radical polymerization reaction is conducted by acting a radical polymerization initiator on the foregoing core-shell type coagulated particles to conduct a step in which a layer made of a crosslinking amorphous polyester resin is formed on the surface of each of the core coagulated particles. | 05-03-2012 |
20120225379 | TWO-COMPONENT DEVELOPER - A two-component developer is disclosed, composing a toner comprising parent toner particles with an attached external additive and a carrier provided with a resin covering layer on a surface of a core particle, wherein the resin covering layer comprises a binder resin comprising an acrylic resin and when the resin covering layer is divided in half to a core particle side and a surface side, a nitrogen element content of the core particle side is larger than a nitrogen element content of the surface side. | 09-06-2012 |
20120264050 | PRODUCTION PROCESS OF TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT - Disclosed is a production process of a toner for electrostatic image development, by which excellent toner particle size-controlling ability is achieved, and moreover the sharpening of a particle size distribution is achieved. | 10-18-2012 |
20120270149 | PRODUCTION PROCESS OF TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT - Disclosed is a production process of a toner for electrostatic image development, by which excellent toner particle size-controlling ability and moreover the sharpening of a particle size distribution are achieved. | 10-25-2012 |
20120328980 | PRODUCTION PROCESS OF TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT - The toner for electrostatic image development has excellent charge properties, by which excellent toner particle size-controlling ability is achieved, and moreover the sharpening of a particle size distribution is achieved. The toner is composed of toner particles containing a binder resin. The process has an aggregating step of adding an aggregating agent containing a transition element into an aqueous medium of dispersed fine binder resin particles to aggregate the fine binder resin particles, and an aggregation-stopping step of adding an aggregation stopper composed on a sulfur atom-containing compound exhibiting a reducing action on the aggregating agent. The aggregating agent is a salt of a bivalent or higher metal selected from Sr, Ti, V, Cr, Mn, Fe, Co, Ni and Cu. | 12-27-2012 |
20130043621 | TONER CONTAINER AND IMAGE FORMING METHOD - The method to make the toner container provides a toner container exhibiting reduced environmental load and excellent strength together with moldability. The method is a blow molding method. The method employs a resin containing at least one of polyethylene and polypropylene formed from raw material prepared via a fermentation method. | 02-21-2013 |
20130189612 | TWO-COMPONENT DEVELOPER - The present invention relates to a two-component developer which comprises a toner, and a carrier having a surface of a core material particle coated with a resin having a unit of general formula (1). The present invention provides a two-component developer which has enhanced environmental stability of carrier charging performance. | 07-25-2013 |
20140349230 | TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT, TWO-COMPONENT DEVELOPER, AND IMAGE FORMATION PROCESS - Disclosed are a toner for electrostatic image development and an image formation process using the same which can achieve high varnish application property and high adhesion of a heat-fixed image to a varnish layer even when the varnish layer is formed on the fixed image formed by an image formation process of an electrophotographic system. | 11-27-2014 |