Patent application number | Description | Published |
20120189951 | TONER AND DEVELOPER - A toner including: a binder resin component; crystal nucleating agent; releasing agent; and colorant, wherein the binder resin component contains a crystalline polyester resin and a non-crystalline polyester resin, the crystal nucleating agent is at least one of an aliphatic ester compound and an aliphatic amide compound each having a melting point of 60° C. or higher but lower than 150° C., and wherein the toner satisfies Expressions (I) and (II): | 07-26-2012 |
20120219896 | ELECTROSTATIC IMAGE FORMING TONER AND RESIN FOR TONER - An electrostatic image forming toner including: a colorant; a binder resin; and a releasing agent, wherein the binder resin contains at least two types of polyester resins A and B, wherein a difference of (T1/2−Tg) is 65° C. or more but less than 90° C., where T1/2 denotes a softening point of the electrostatic image forming toner and Tg denotes a glass transition temperature of the electrostatic image forming toner, and wherein the electrostatic image forming toner has a TMA compressive deformation rate (TMA %) at 50° C. which is 5% or less. | 08-30-2012 |
20120237869 | TONER AND METHOD OF MANUFACTURING TONER - A toner including a colorant and a binder resin is provided. The binder resin includes a polyester resin having a glass transition temperature of 18 to 40° C., a weight average molecular weight of 10,000 to 100,000, and a flow beginning temperature of 70 to 120° C. The toner has a volume average particle diameter of 3 to 10 μm. | 09-20-2012 |
20120237870 | TONER, METHOD OF MANUFACTURING TONER, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - A toner including a main body particle, a layer B located overlying the main body particle, and a layer A located overlying the layer B is provided. The binder resin includes an amorphous resin and a crystalline resin. The layer B is comprised of particles of a resin B. The layer A is comprised of particles of a resin A. A method of manufacturing the above toner is also provided. The method includes dissolving or dispersing toner components in an organic solvent to prepare a toner components liquid. The toner components include the binder resin. The method further includes emulsifying the toner components liquid in an aqueous medium to prepare an emulsion. The aqueous medium contains the particles of the resins A and B. The method further includes removing the organic solvent from the emulsion and heating the emulsion. | 09-20-2012 |
20130011778 | ELECTROPHOTOGRAPHIC TONER, METHOD FOR PRODUCING TONER, DEVELOPER AND IMAGE FORMING APPARATUS CONTAINING TONER - An electrophotographic toner obtained from a dispersion or emulsion liquid of an oil phase containing a toner material in an aqueous medium, the toner including: a binder resin, wherein the toner material includes: (A) an epoxy resin prepolymer; (B) an adduct of a dihydric phenol with a polyalkylene oxide; (C) a phenolic compound, or an alcohol compound, or both thereof; and (D) a carboxylic acid compound, and wherein the binder resin includes a resin obtained by allowing the (A), the (B), the (C) and the (D) to react with each other. | 01-10-2013 |
20130059247 | TONER AND DEVELOPER - To provide a toner, which contains: a non-crystalline polyester resin A obtained through a reaction between a non-linear chain reactive precursor and a curing agent, and having a glass transition temperature of −60° C. to 0° C.; a non-crystalline polyester resin B having a glass transition temperature of 40° C. to 70° C.; and a crystalline polyester resin C, wherein the toner has a glass transition temperature Tg1st of 20° C. to 40° C. as measured with first heating in differential scanning calorimetry (DSC). | 03-07-2013 |
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 |
20130196263 | ELECTROSTATIC IMAGE FORMING TONER AND DEVELOPER - An electrostatic image forming toner including: toner base particles each containing at least a colorant, a binder resin, and a releasing agent, wherein the binder resin contains a non-crystalline polyester resin A and a crystalline polyester resin B, wherein a ratio of B/(A+B)×100 is 10 or more but less than 50 where (A+B) is a total mass of the non-crystalline polyester resin A and the crystalline polyester resin B and “B” is a mass of the crystalline polyester resin B, and wherein the toner base particles have a TMA compression deformation amount (TMA %) of 10% or less which is measured at 50° C. and a relative humidity of 90%. | 08-01-2013 |
20130337374 | TONER, DEVELOPER AND IMAGE FORMING APPARATUS - To provide a toner including a binder resin and a colorant, wherein the toner has a glass transition temperature by differential scanning calorimetry (DSC) of 20° C. or greater and less than 50° C., an endothermic peak temperature by DSC of 50° C. or greater and less than 80° C. and an amount of compressive deformation at 50° C. by a thermomechanical analysis of 5% or less. | 12-19-2013 |
20130337376 | TONER, AND FULL-COLOR IMAGE FORMING METHOD AND FULL-COLOR IMAGE FORMING APPARATUS USING THE TONER - A toner including a binder resin, a colorant and a phenol multimer represented by the following General Formula (1): where R | 12-19-2013 |
20140023965 | TONER, DEVELOPMENT AGENT, AND IMAGE FORMING APPARATUS - Toner contains a binder resin and a colorant, wherein the binder resin contains a resin having a polyhydroxy carboxylic acid skeleton, wherein the toner has a half effusion temperature of from 80° C. to 120° C. as measured by a temperature rising method using a flow tester. | 01-23-2014 |
20140051019 | TONER, DEVELOPMENT AGENT, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - Toner contains a binder resin containing a crystalline resin having a urethane and/or urea bonding; and a colorant, wherein in a diffraction spectrum of the toner as measured by an X-ray diffraction instrument, a ratio {C/(C+A)} of an integral intensity C of the spectrum derived from the crystalline structure to an integral intensity A of the spectrum derived from the non-crystalline structure is 0.12 or greater, wherein the toner satisfies the following relation 1: T1−T2≦30° C. (Relation 1), where T1 represents the maximum endothermic peak in the first temperature rising from 0° C. to 100° C. at the temperature rising rate of 10° C./min and T2 represents the maximum exothermic peak in the first temperature falling from 100° C. to 0° C. at the temperature falling rate of 10° C./min as T1 and T2 are measured by diffraction scanning calorimetry (DSC). | 02-20-2014 |
20140080050 | TONER, DEVELOPMENT AGENT, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD - Toner contains a binder resin, wherein the binder resin contains a block copolymer A containing a crystalline segment X and a non-crystalline segment Y, wherein the toner has a thermo-mechanical analysis (TMA) compressive deformation amount (TMA %) of 10% or less at 50° C. and a relative humidity of 90%, wherein the toner has a spin-spin relaxation time (t130) of 10 ms or greater at 130° C. as measured by pulse nuclear magnetic resonance (NMR), wherein the toner has a spin-spin relaxation time (t′70) of 1 ms or less at 70° C. as measured by pulse NMR when descending from 130° C. to 70° C. | 03-20-2014 |
20140080051 | TONER AND METHOD FOR PRODUCING TONER - To provide a toner (X), which contains toner particles, each toner particle contains: a core phase (Q) containing a crystalline resin (A); and a shell phase (S) provided on a surface of the core phase (Q), where the shell phase (S) contains a crystalline polyurethane resin (B), wherein maximum peak temperature (Ta) of heat of melting of the crystalline resin (A) is 40° C. to 70° C., and maximum peak temperature (Tu) of heat of melting of the crystalline polyurethane resin (B) is 50° C. to 90° C. | 03-20-2014 |
20140272698 | TONER - Toner contains a binder resin containing two or more kinds of crystalline resins; and a coloring agent, wherein the two or more kinds of crystalline resins have at least two endothermic peak temperatures in a set of endothermic peak temperatures of the two or more kinds of crystalline resins as measured by differential scanning calorimetry (DSC). | 09-18-2014 |
20150024312 | TONER, DEVELOPER, AND COLOR TONER SET - A toner, including: a binder resin; and a colorant, wherein the toner has a storage modulus of 1.0×10 | 01-22-2015 |