Patent application number | Description | Published |
20090291375 | FULL COLOR IMAGE FORMATION PROCESS - Disclosed is a process of forming a full color image according to electrophotography, employing a yellow toner, a magenta toner and a cyan colorant, the process comprising the step of forming a yellow toner image, a magenta toner image and a cyan toner image on a recording material, wherein the yellow toner image has reflectance (in terms of %) satisfying formulas (11) through (14) below, the magenta toner image has reflectance (in terms of %) satisfying formulas (21) through (24) below, and the cyan toner image has reflectance (in terms of %) satisfying formulas (31) through (34) below. | 11-26-2009 |
20090291378 | ELECTROPHOTOGRAPHIC TONER SET - Provided is a set of toners comprising a yellow toner, a magenta toner, a cyan toner and a black toner for forming a full color image with an electrophotographic method, wherein the yellow toner comprises toner particles containing at east one pigment selected from the group consisting of C. I. Pigment Yellow 74, C. I. Pigment Yellow 139, C. I. Pigment Yellow 180, C. I. Pigment Yellow 185 and C. I. Pigment Yellow 155; the magenta toner comprises toner particles containing a rhodamine based dye represented at least by Formula (1) and Formula (2), and the cyan toner comprises toner particles containing a phthalocyanine based dye represented by Formula (5): | 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 |
20100136476 | IMAGE FORMING METHOD - Provided is a method for forming an image with a set of electrostatic charge image developing toners using a digital electrophotographic method, provided that the set of electrostatic charge image developing toners comprises a black toner and a light gray toner, the method comprising the steps of: forming an electrostatic latent image on an image support; developing the electrostatic latent image with the black toner to form a black toner image; developing the electrostatic latent image with the light gray toner to form a light gray toner image; and fixing the black toner image and the light gray toner image, wherein the black toner and the light gray toner each independently contains a wax having an endothermic peak in the range of 60 to 105° C.; and the light gray toner has a transmittance in the range of 40 to 90%. | 06-03-2010 |
20100330491 | ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER - Provided is an electrostatic charge image developing toner producing neither halftone image unevenness nor density drop of solid images, even though a large number of print sheets are printed at high temperature and high humidity, and subsequently printing is further carried out at high temperature and high humidity after standing for a long time. Disclosed is an electrostatic charge image developing toner containing 3-10% by weight of at least one metal fluoride selected from the group consisting of sodium fluoride, magnesium fluoride, calcium fluoride, barium fluoride and aluminum fluoride, based on a total weight of the toner. | 12-30-2010 |
20130004890 | TONER FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT - A toner used for electrostatic latent image development which is excellent in fixing separability with maintaining sufficient low temperature fixability even in a high-speed machine and is also superior in crashing resistance, comprising toner particles, each comprising a core particle and a shell layer provided on the surface of the core particle, wherein the core particle comprises a binder resin containing a styrene-acrylic resin and a first styrene-acrylic modified polyester, and the shell comprises a second styrene-acrylic modified polyester resin. | 01-03-2013 |
20150064616 | ELECTROSTATIC LATENT IMAGE DEVELOPING TONER - An electrostatic latent image developing toner includes a toner base particle which contains at least a binder resin, and has a domain-matrix structure, in which a matrix contains a styrene-acrylic resin, a domain contains an amorphous resin which is formed by combining a vinyl-based polymerized segment and a polyester-based polymerized segment, and the domain containing the amorphous resin and having a diameter of 100 nm or larger has a number-average domain diameter which falls in the range from 150 to 1000 nm. | 03-05-2015 |
20150177632 | ELECTROSTATIC IMAGE DEVELOPING TONER - An electrostatic image developing toner includes a toner particle having a core-shell structure including a core portion containing a first polyester resin A, and a shell layer containing a second polyester resin B, the shell layer coating the core portion, wherein the second polyester resin B has at least a meta-phenylene skeleton, and the following relational expression (1) is satisfied: relational expression (1): 0≦a | 06-25-2015 |