| Entries |
| Document | Title | Date |
|---|
| 20080220359 | TONER PROCESSES - Disclosed herein are toner particles generated by emulsion/aggregation processes. The processes are conducted under conditions that shorten the time for coalescence and post-formation washing, thereby increasing efficiency of the processes as compared to conventional processes. | 09-11-2008 |
| 20080241726 | RESIN-FILLED FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, PRODUCTION METHOD THEREOF AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE FERRITE CARRIER - Employed are a resin-filled ferrite carrier for an electrophotographic developer filled with a resin in voids of a porous ferrite core material, wherein the resin filled in the voids is a silicone resin which has a softening point of 40° C. or above and is cured at or above such softening point, and the filled amount is 7 to 30 parts by weight based on 100 parts by weight of the core material, a method for producing thereof band an electrophotographic developer using this ferrite carrier. | 10-02-2008 |
| 20080268363 | POROUS PARTICLES - The present invention is toner particle that includes a binder resin and nonionic organic polymer particles. The particle has porosity. | 10-30-2008 |
| 20080268364 | Methods for making customized black toners - According to embodiments illustrated herein, there is provided a black toner having a resin, an optional additive, and at least two or more colored pigments, and the at least two or more colored pigments are selected from the group consisting of a blue pigment, a green pigment, a red pigment, a magenta pigment, a cyan pigment, a yellow pigment, a white pigment, and mixtures thereof, and the black toner has a calorimetric value L* of about less than 30. | 10-30-2008 |
| 20090011355 | TONER, METHOD OF MANUFACTURING THE TONER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS - There are provided a toner that allows prevention of environmental contamination and is nevertheless free from toner durability degradation, wherein a sufficiently wide color reproduction range can be secured even when it is applied to color toner, and variation in characteristics among toner particles can be suppressed, as well as a method of manufacturing a toner, a developing device, and an image forming apparatus. In the toner particle is formed the biomass resin-containing domain. | 01-08-2009 |
| 20090029279 | TONER, TWO-COMPONENT DEVELOPER, AND IMAGE FORMING APPARATUS USING THE TONER AND THE TWO-COMPONENT DEVELOPER - A toner is provided which is capable of preventing a decrease in a toner charge amount and thus preventing fog and a decrease in image density even in a case where images of low coverage are continuously printed or where a printing operation restarts immediately after long suspension of operation in an image forming apparatus. The toner contains coloring resin particles formed of a boron compound, a hinder resin, and a colorant, and an external additive of which a primary particle is adjusted to have a size of 16 nm or more and 30 nm or less and of which a volume resistivity is adjusted to 1×10 | 01-29-2009 |
| 20090186290 | NON-MAGNETIC TONER - Provided is anon-magnetic toner including toner particles each containing at least a binder resin, a colorant, and a wax component, and an inorganic fine powder, in which: (1) when a temperature in a temperature range of 50 to 80° C. at which a loss tangent (tan δ) shows a maximum is represented by T1, a storage elastic modulus of the toner at the temperature T1 (G′(T1)) satisfies a relationship of 5.00×10 | 07-23-2009 |
| 20100167196 | TONER RECOVERY APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - To provide a toner recovery apparatus including: a toner transporting duct; and an endless toner transporting belt; wherein the toner transporting belt is rotated in a loop form in such a way that it descends in a region where the outer circumferential surface faces a ceiling surface of the toner transporting duct and that it rises in a region where the outer circumferential surface of the toner transporting belt faces a bottom surface of the toner transporting duct, the toner recovery apparatus transports the residual toner to the outlet by holding the toner by the convex parts, spaces formed between convex parts and the bottom surface of the toner transporting duct, and the toner comprises a binding resin, releasing agent, coloring material and external additive, and torque T (mNm) measured by torque measurement method using a conical rotor in a space ratio of 50% to 60% is 1.0 to 2.5. | 07-01-2010 |
| 20110294061 | CRYSTALLINE RESINS FOR TONERS - The present invention relates to a crystalline resin for toners which includes a composite resin including a polycondensation-based resin component obtained by polycondensing an alcohol component containing an aliphatic diol having 2 to 10 carbon atoms with a carboxylic acid component containing an aromatic dicarboxylic acid, and a styrene-based resin component; a resin binder containing the crystalline resin and a non-crystalline resin; and a toner for electrophotography which contains the resin binder. According to the present invention, there are provided a crystalline resin for toners which is capable of producing a toner that is excellent in not only low-temperature fixing ability but also gloss of images and anti-filming property, a resin binder, and a toner for electrophotography. | 12-01-2011 |
| 20120028182 | TONER HAVING CORE-SHELL STRUCTURE AND METHOD OF PREPARING THE SAME - A toner having a core-shell structure and a method of preparing the same. Since a shell includes a crosslinked resin, a toner preventing hot offsets and having excellent charge stability is prepared. | 02-02-2012 |
| 20120064450 | TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE AND METHOD OF PREPARING THE SAME - A toner includes a binder including two different weight molecular weight resins, a colorant, and a releasing agent, wherein a gel permeation chromatogram (GPC) molecular weight distribution curve of the toner has a major peak (Mp) present in a range of about 1.0×10 | 03-15-2012 |
| 20120082928 | ELECTROPHOTOGRAPHIC TONER AND METHOD FOR PRODUCING THE SAME - Disclosed is a decolorizable electrophotographic toner, including: a binder resin; and a colorant which contains at least a color developable compound and a color developing agent and is covered with an outer shell so as to have a capsule structure, wherein the number ratio of particles having an equivalent circle diameter of 0.6 μm or more and 2.5 μm or less of the toner when measured using a flow particle image analyzer after the toner is dispersed in an aqueous medium at a ratio of 0.08% by weight and the resulting dispersion is subjected to a stirring treatment in which stirring is performed at 5000 rpm for 30 minutes using a homogenizer (T-25 digital ULTRA-TURRAX (manufactured by IKA Japan K.K., provided with a shaft generator S25N-10G)) is 30% by number or less. | 04-05-2012 |
| 20120094227 | TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE - A toner for developing an electrostatic latent image is disclosed, the toner being composed of toner particles which comprises toner mother particles containing a binding resin having a hydrophilic polar group, a coloring agent and a releasing agent, and an external additive, wherein a mass of Na atoms in a neighborhood of surface of the toner particles measured by the measuring method described below is 50 to 750μg in 1 g of toner particles. | 04-19-2012 |
| 20120129091 | APPARATUS FOR PRODUCING TONER, METHOD FOR PRODUCING TONER, AND TONER - To provide an apparatus for producing a toner, including: a droplet forming unit configured to periodically discharge a toner composition liquid, which includes at least a resin and a colorant, from a plurality of nozzles so as to form droplets; a gas flow forming unit configured to form a gas flow which passes through a narrowed portion that corresponds to a nozzle formation area and that is placed on a downstream side of the nozzles with respect to a droplet discharge direction, and which advances in the droplet discharge direction; and a particle forming unit configured to form toner particles by solidifying the droplets of the toner composition liquid passed through the narrowed portion and then discharged, wherein the opening area of an opening which forms the narrowed portion decreases from an inlet side of the narrowed portion toward an outlet side of the narrowed portion. | 05-24-2012 |
| 20120225378 | Toner Composition Having Dual Wax - Included is an emulsion aggregation toner formulation having at least one latex and a combination of at least two waxes, wherein one wax is a synthetic wax, and another wax is a natural wax, and further including a developer containing a carrier and the just-described toner. | 09-06-2012 |
| 20120251940 | PROCESS FOR PRODUCING A TONER FOR ELECTROPHOTOGRAPHY - The invention provides a process for producing a toner for electrophotography including the following (1) to (4): (1): adding an aggregating agent to a resin particle dispersion (a) so as to attain an aggregating agent concentration Ea (wt %), to thereby produce an aggregated particle dispersion (A); (2): adding a resin microparticle dispersion (b) to the dispersion (A), to thereby produce a dispersion (B) having an aggregating agent concentration Eb (wt %) satisfying 0.60≦Eb/Ea<1; (3): modifying the aggregating agent concentration of the dispersion (B), to thereby produce a dispersion (C) of resin microparticle-deposited aggregated particles, having an aggregating agent concentration Ec (wt %) satisfying 0| 10-04-2012 | |
| 20120270147 | PARTICULATE MATERIAL PRODUCTION METHOD AND APPARATUS, TONER PRODUCTION METHOD AND APPARATUS, AND TONER - The particulate material production method includes vibrating a particulate material composition liquid in a liquid column resonance chamber having at least one nozzle to form a standing wave in the particulate material composition liquid caused by liquid column resonance, so that droplets of the particulate material composition liquid are ejected in a droplet ejection direction from the nozzle so as to fly in a space in a flight direction; feeding a gas in a direction substantially perpendicular to the droplet ejection direction to change the flight direction of the ejected droplets; and solidifying the droplets in the space to produce a particulate material. The particulate material composition liquid includes at least a solvent and a component of the particulate material dissolved or dispersed in the solvent, and the nozzle is located at a location corresponding to an anitnode of the standing wave. | 10-25-2012 |
| 20120276476 | TONER FOR ELECTROSTATIC USE - Toner particles having high transcription efficiency and reducing toner toner consumption. The toner includes a binder resin and a colorant, wherein a particle diameter distribution of the toner particles satisfy the following conditions: | 11-01-2012 |
| 20120295192 | TONER, DEVELOPER, TONER CONTAINER, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE - To provide a toner which contains a binder resin, a colorant, and capsules, wherein the binder resin contains a thermoplastic elastomer, and wherein the capsules each encapsulate a plasticizer capable of softening the thermoplastic elastomer and the capsules are fractured upon application of predetermined pressure. | 11-22-2012 |
| 20120328977 | TONER AND PROCESS FOR PRODUCTION THEREOF - Encapsulated toner particles are formed by: aggregating core material particles containing at least a colorant and a core material resin in an aqueous dispersion medium to form core particles; adding coating resin particles into the aqueous dispersion medium during progress of the formation of the core material at a point of time when the volume-based median particle diameter of the core particles formed by the aggregation reaches 30 to 83% of that of desired toner particles; and continuing the aggregation to form a coating layer composed of a composite aggregate of the core material particles and the coating resin particles on the core material. In the thus-obtained toner, the colorant is uniformly and well incorporated in the toner particles, and therefore, the coloring ability is improved without causing a problem of release of fine powder. | 12-27-2012 |
| 20120328978 | DEVELOPING AGENT, METHOD FOR EVALUATING DEVELOPING AGENT, AND METHOD FOR PRODUCING DEVELOPING AGENT - According to one embodiment, a developing agent includes a binder resin and a coloring agent, wherein when the developing agent is subjected to methanol extraction, and a filtrate of the resulting extract is subjected to HPLC measurement, the ratio of a peak area at a retention time of 10 minutes or less to the total peak area is 15.0% or less. | 12-27-2012 |
| 20130034808 | PULVERIZER, PULVERIZATION METHOD, TONER PRODUCTION METHOD, AND TONER - A pulverizer including a solid-gas mixer to mix a compressed gas and particles of a raw material to be pulverized to prepare a solid-gas mixture; a particle path controlling nozzle connected with the solid-gas mixer to feed the solid-gas mixture fed from the solid-gas mixer while accelerating the solid-gas mixture and controlling the particles of the raw material so as to choose different flow paths based on particle diameters of the particles of the raw material; a collision member; and an accelerating tube connected with the particle path controlling nozzle to further accelerate the solid-gas mixture fed from the particle path controlling nozzle while maintaining the flow paths of the particles and ejecting the accelerated solid-gas mixture toward the collision member to pulverize the raw material. | 02-07-2013 |
| 20130130165 | TONER - Provided is a toner comprising toner particles, wherein each of the toner particles has a core-shell structure composed of a core and a shell phase formed on the core, the shell phase contains a resin (B), and the core contains a binder resin (A), a colorant and a wax, wherein the toner particles contain the resin (B) in a specific amount with respect to the core, and wherein the solubility parameter (SP value) of the binder resin (A) is denoted by SP(A), the SP value of the resin (B) is denoted by SP(B), the SP value of a repeating unit with the smallest SP value from among repeating units constituting the resin (B) is denoted by SP(C), and the SP value of the wax is denoted by SP(W), each of the SP(A), SP(B), SP(C) and SP(W) satisfy specific relationships. | 05-23-2013 |
| 20130183616 | 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. | 07-18-2013 |
| 20130244166 | TONER - A toner is provided which is superior in the long-term storage stability and has high low-temperature fixing properties. In a DSC curve as measured with a differential scanning calorimeter, the toner has a glass transition temperature of not less than 50° C. and not more than 60° C.; and the toner has, in regard to a resin composition contained therein, a difference of not less than 0.060 W/g in heat flow between a point on the curve at a temperature of 40° C. and a baseline in the range exceeding the glass transition temperature; and in viscoelastic characteristics measured at a frequency of 6.28 rad/sec, the toner has a storage elastic modulus (G′40) at a temperature of 40° C. of not less than 7.0×10 | 09-19-2013 |
| 20130302730 | TONER - To provide a toner that can keep its melt-sticking to sleeve from occurring and, even in double-sided printing, can keep high-temperature offset from occurring and obtain high-quality images on both the surface and the back. The toner comprises toner particles each of which contains a binder resin containing a resin formed by the reaction of i) a resin (A) having a softening point TA (° C.) of 70° C. to 105° C. and having a peak top of endothermic peaks at 55° C. to 120° C. with ii) a resin (B) having a softening point TB (° C.) of 120° C. to 160° C. and having a peak top of endothermic peaks at 55° C. to 120° C., and, in its viscoelasticity characteristics, has a storage elastic modulus at temperature 180° C. (G′180) of 3.0×10 | 11-14-2013 |
| 20130309603 | TONER - A toner having toner particles, each of which contains a binder resin and a colorant, wherein in viscoelastic properties of the toner as measured with a rotating flat plate rheometer at a frequency of 6.28 rad/sec:
| 11-21-2013 |
| 20140030645 | TONER - Disclosed is a toner which enables a stable image density to be obtained, regardless of the service environment, throughout use in durability tests, and which is able to suppress the occurrence of faulty cleaning. The toner contains both toner particles, which include a binder resin and a colorant, and also silica fine particles. The toner has an average circularity of at least 0.950, a static friction coefficient, with respect to a polycarbonate resin substrate, of at least 0.100 and not more than 0.200, and a coverage ratio X1 of the toner surface by the silica fine particles, as determined by X-ray photoelectron spectroscopy (ESCA), of at least 50.0 area %, and not more than 75.0 area %. | 01-30-2014 |
| 20140038096 | CHARGE CONTROL AGENT AND TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT CONTAINING SAME - Provided is a charge control agent that gives toner a practical level of negative chargeability, is colorless or a light color and can be used in a color toner, has an electrostatic charge from charging of a resin powder, such as the toner used, that is stable against environmental change, and has the characteristics of: excellent temporal stability of charge control characteristics, i.e., storage stability; excellent stability of charge control characteristics when repeatedly used a number of times, i.e., durability; and high stability without containing toxic heavy metals. | 02-06-2014 |
| 20140141368 | ELECTROSTATIC LATENT IMAGE DEVELOPING TONER - Electrostatic latent image developing toner includes at least a binder resin and a releasing agent. In the electrostatic latent image developing toner, a maximum thermal expansion coefficient difference (Sw | 05-22-2014 |
| 20140212805 | DECOLORIZABLE TONER - Provided is a decolorizable toner including a binder resin and colorant particles which contain a color developable compound, a color developing agent, and a decolorizing agent, and have a capsule structure coated with an outer shell, wherein the binder resin is contained in an amount of 60 to 80% by mass with respect to the total amount of the toner components. | 07-31-2014 |
| 20140234768 | TONER AND METHOD FOR PRODUCING THE SAME - Provided is a method for producing a toner including: aggregating colorant particles and release agent particles, thereby forming aggregates containing the colorant particles and the release agent particles; aggregating binder resin particles and the obtained aggregates containing the colorant particles and the release agent particles, thereby forming toner particle precursors; and aggregating and fusing the obtained toner particle precursors, thereby forming toner particles, wherein when the average circularity of the toner particles is represented by Rt, Rt satisfies the following formula (1): 0.85≦Rt≦0.92 (1). | 08-21-2014 |
| 20140342282 | METHOD FOR MANUFACTURING TONER, TONER AND IMAGE FORMING METHOD - A method for manufacturing a toner, including at least: dissolving or dispersing a toner material including at least any one of a binder resin and a precursor of a binder resin in an organic solvent which is dispersed in a dispersant-including aqueous medium; forming particles by removing the organic solvent; washing the particles; forming voids in the particles by heating to a temperature T while or after dispersing the particles in an aqueous medium; forming toner base particles by adding a charge controlling agent; and adding an external additive to the toner base particles to obtain toner particles, wherein the T is between a glass transition temperature Tg of the toner particles and Tg+25° C., and the toner has a cross-sectional void fraction Sp/St of 0.1% to 15.0%, where St is a cross-sectional area of the toner particles, and Sp is a cross-sectional area of the voids. | 11-20-2014 |
| 20150017583 | TONER FOR DEVELOPMENT OF ELECTROSTATIC IMAGES - The object of the present invention is to provide a toner for development of electrostatic images (hereinafter referred to as toner) which, while preventing dust during fixation, secures improved hot offset resistance and is excellent in providing good image quality. The invention relates to the toner that comprises a binder resin, a colorant and a wax, wherein the wax has, while in a state of being contained in the toner, a melting point of from 55° C. to 90° C., and the value Dt of the toner satisfies a specific formula. | 01-15-2015 |
| 20150037726 | TONER - The toner comprises: toner particles each containing a binder resin and a releasing agent; and an organic-inorganic composite fine particle, wherein: the organic-inorganic composite fine particle comprises: a vinyl resin particle containing a vinyl resin, the vinyl resin containing THF-insoluble matter in an amount of 95% by mass or more; and inorganic fine particles which are exposed at surfaces of the respective organic-inorganic composite fine particles, the organic-inorganic composite fine particle 1) has a plurality of convexes derived from the inorganic fine particles on the surfaces thereof, 2) has a number average particle size of 70-500 nm, and 3) has a shape factor SF-2 as measured at a magnification of 200,000 times of 103-120, and an absolute value of difference between an SP value of the releasing agent and an SP value of the vinyl resin is 0.50 (cal/cm | 02-05-2015 |
| 20150044605 | DEVELOPER, METHOD FOR FORMING IMAGE, AND METHOD FOR PRODUCING DEVELOPER - A developer of the present disclosure contains: toner particles each containing a binder resin and a magnetic powder; cross-linked polyester resin particles having a particle size of 2 μm or more and 30 μm or less; and an external additive. The toner particles and the cross-linked polyester resin particles are externally treated with the external additive in the same manner. | 02-12-2015 |
| 20150111144 | POLYMERIC COMPOSITE MATERIALS, MANUFACTURE, AND USES - Composite materials such as composite particles have a solid non-elastomeric continuous phase made of an organic polymer having a glass transition temperature of at least 25° C. Dispersed within this solid non-elastomeric continuous phase are many multi-compartment porous chemically crosslinked elastomeric particles that have a mode particle size of at least 1 μm and up to and including 10 μm. The composite particles can be used as toner particles in electrophotographic imaging methods to provide fused toner images and especially stacked fused toner images. | 04-23-2015 |
| 20150118612 | ELECTROSTATIC LATENT IMAGE DEVELOPING TONER AND METHOD FOR PRODUCING THE SAME - An electrostatic latent image developing toner includes toner particles each including a toner core containing a binder resin and a shell layer on a surface of the toner core. The shell layer includes a unit derived from a monomer of a thermosetting resin. The thermosetting resin is one or more resins selected from the group of amino resins consisting of a melamine resin, a urea resin, and a glyoxal resin. The inorganic particles intervene in an interface between the toner core and the shell layer. The inorganic particles have a number average particle diameter of 60 nm or more and 250 nm or less. Protrusions having a shape that follows a shape of the inorganic particles are on surfaces of the toner particles. | 04-30-2015 |
| 20150132696 | TONER, DEVELOPER, IMAGE FORMING APPARATUS, PARTICLES, METHOD FOR PRODUCING TONER AND METHOD FOR PRODUCING PARTICLES - A toner, including: a binder resin; and a releasing agent, wherein the toner includes a pressure plastic material as the binder resin, wherein the releasing agent includes a plurality of particulate releasing agents, and wherein the particulate releasing agents forming domain phases are dispersed in the pressure plastic material forming a continuous phase. | 05-14-2015 |
| 20150132697 | TONER CONTAINING AROMATIC MATERIALS AND METHOD OF FORMING AN IMAGE USING THE SAME - A toner includes toner particles, each containing binder resin and a plurality of microcapsules dispersed therein, each of the microcapsules containing a liquid material. A method for forming an image on a medium includes forming an electrostatic latent image on a carrier, forming a toner image by developing the electrostatic latent image using the toner, transferring the toner image onto a medium, and fixing the transferred toner image on the medium. | 05-14-2015 |
| 20150140488 | ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER AND METHOD FOR PRODUCING ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER - An electrostatic charge image developing toner contains a plurality of toner particles. Each of the toner particles includes a toner core containing a binder resin and a shell layer coating the toner core. The shell layers contain a thermosetting resin. The toner cores have a negative zeta potential in an aqueous medium adjusted to pH 4. The toner particles have a positive zeta potential in an aqueous medium adjusted to pH 4. The shell layers have a film thickness of 1 nm or more and 20 nm or less. | 05-21-2015 |
| 20160041486 | REVERSIBLY ALLOCHROIC TONER, METHOD OF PRODUCING THE SAME, TONER CARTRIDGE, AND IMAGE FORMING APPARATUS - A reversibly allochroic toner contains a binder resin and a colorant. The colorant reversibly switches between first and second color states in response to temperature changes. The colorant exhibits a hysteresis in a temperature-color state curve thereof in which the following relationships are satisfied. | 02-11-2016 |
