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WO/2024/085908A1 |
An additive for a toner particle containing silica particles surface-treated with a silane coupling agent containing at least one element selected from a group comprising fluorine and sulfur.
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WO/2024/085855A1 |
An example a toner composition includes toner particles including a binder resin, a releasing agent, and a pigment and an additive disposed on an external surface of the toner particles, the additive including hydrophobic calcium carbona...
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WO/2024/085147A1 |
The present invention pertains to an electrostatic charge development toner and a method for producing the same. The electrostatic charge development toner contains a crystalline polyester resin C and a noncrystalline polyester resin A. ...
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WO/2024/085912A1 |
An additive for a toner particle including polymer particles having an interpenetrating polymer network formed of at least one polymer selected from a group comprising a polystyrene and a poly(meth)acrylate.
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WO/2024/058817A1 |
Toner particles can contain a binder resin, a colorant, and a release agent. The toner particles can exhibit a peak area ratio of 5/95 to 21/79 in a molecular weight distribution measured by gel permeation chromatography (GPC). The peak ...
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WO/2024/048480A1 |
Provided is a toner, wherein bleed-out of a mold release agent does not easily occur even in a high temperature and high humidity environment, printing defects do not easily occur even when using the toner stored for a long period of tim...
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WO/2024/043895A1 |
An example toner composition includes an aggregate of a plurality of toners, each of the plurality of toners being a different color, wherein the aggregate has a color space characteristic to perform monochrome printing.
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WO/2024/039390A1 |
A toner particle containing: a binder resin; and a wax that forms at least one wax domain having an aspect ratio of 1.0 to 20.0 in a cross-section of the toner particle, wherein a domain size indicator value of the toner particle is 0.2 ...
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WO/2024/034483A1 |
The present invention provides: a toner cleaning agent that can impart, to a toner, suitable fluidity which enables excellent cleaning performance, and that can suppress wearing of a cleaning blade even in a high-temperature and high-hum...
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WO/2024/024439A1 |
The present invention provides progress to conventional process cartridges. The present invention has: a rotatable development roller; a development frame that rotatably supports the development roller; a toner that has toner particles a...
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WO/2024/019707A1 |
Described herein is a hole transport liquid electrophotographic (LEP) ink composition comprising: a material capable of transporting electron holes; a thermoplastic resin comprising a copolymer of an alkylene monomer and an ethylenically...
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WO/2023/223921A1 |
Provided is an electrophotographic carrier comprising a resin-coated carrier comprising magnetic core material particles and a coating layer that coats the surfaces of the core material particles with a resin, wherein the coating layer a...
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WO/2023/219642A1 |
An example toner particle contains a colorant, a release agent, and a binder resin containing an amorphous polyester resin and a crystalline polyester resin, wherein the binder resin contains terephthalic acid and ethylene glycol as mono...
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WO/2023/204087A1 |
The present invention provides a microchannel device, channel walls of which have high hydrophobicity, and which has high cracking resistance. Provided is a microchannel device in which channels sandwiched by channel walls are formed ins...
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WO/2023/199621A1 |
This image formation device comprises: an image formation means for forming a plurality of toner images by using a plurality of types of toners and forming an image on a sheet by transferring the plurality of toner images to the sheet ei...
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WO/2023/195991A1 |
Described herein is a liquid electrophotographic printing process comprising heating a coating composition comprising a thermoplastic polymer and a liquid carrier to dissolve the thermoplastic polymer in the liquid carrier and form a hea...
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WO/2023/187356A1 |
The present invention relates to a method of providing an image on an article, the method comprising: - printing an image on an image transfer layer using a ceramic toner; - applying the image transfer layer comprising the printed image ...
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WO/2023/190708A1 |
This toner has at least a binding resin. The binding resin includes at least a polyester resin. The contained amount of the polyester resin is not less than 2.5 mass% with respect to the total mass of the toner. In a printed matter obtai...
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WO/2023/189707A1 |
Provided is a toner for which toner leakage is unlikely to occur and which has excellent thin line reproducibility. This toner contains colored resin particles comprising a binding resin, a coloring agent, and a release agent and also co...
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WO/2023/176926A1 |
Provided are cobalt ferrite particles having a uniform particle size with a µm-scale average particle size. The method for producing cobalt ferrite particles involves heat treatment of an aqueous solution (ferrite precursor) containin...
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WO/2023/166857A1 |
A toner storage container having a flexible bag-form storage section and toner that is stored in the storage section and contains silica particles, the toner having a total energy value of 300 mJ or less when the total energy is measured...
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WO/2023/157792A1 |
Provided is a toner which has an excellent balance between low-temperature fixability and storability and which, when used in continuous printing under high-temperature and high-humidity conditions, can be inhibited from suffering toner ...
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WO/2023/127815A1 |
Provided is a toner for electrostatic image development that contains coloring resin particles containing a binder resin, a coloring agent, an electrostatic charge control agent, and a crystalline material. When reflection electron image...
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WO/2023/127947A1 |
The present invention relates to a method for manufacturing toner for electrostatic charge image development, said method including a step of causing resin particles containing an amorphous resin and a crystalline resin in the same or di...
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WO/2023/127949A1 |
The present invention relates to a method for producing a toner for electrostatic-image development, the method comprising step (1) in which a release agent is mixed with and emulsified in a dispersion of resin particles comprising 90 ma...
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WO/2023/127948A1 |
The present invention relates to an electrostatic image development toner containing, as binder resins, an amorphous resin and a crystalline resin, wherein: the amorphous resin contains an amorphous polyester resin (A), which is a polyco...
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WO/2023/096638A1 |
Herein is described a liquid electrophotographic ink composition. The composition may comprise a copolymer of an olefin and a monomer having a carbon-carbon double bond and a -CO2X group, and wherein X is H or Li; a polyethylene glycol-l...
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WO/2023/075741A1 |
An electrographic toner can include toner particles having a multi-particulate additive disposed on an exterior surface of the toner particles. The toner particles can have a specific surface area from 3.0 m2/g to 3.65 m2/g and can inclu...
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WO/2023/075778A1 |
A printing material particle for a printing apparatus may include a colorant, a binder resin, and a metal-salen complex compound. The metal-salen complex compound may absorb ultra-violet (UV) light to emit visible light to be fluorescent.
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WO/2023/063281A1 |
The present invention relates to a powder composed of fine spherical strontium titanate particles, characterized by having an average primary-particle diameter of 50 nm or smaller, a roundness of 0.8 or greater, and a lattice constant of...
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WO/2023/058573A1 |
According to the present invention, the volume resistivity of a contact member that contacts the surface of a developer carrier is no more than 1014 Ω⋅cm, and a developer satisfies the following conditions. Outside of an image formati...
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WO/2023/053944A1 |
An image forming apparatus which comprises a first image forming unit for forming a toner image for printing by means of a toner for printing and an adhesive image forming unit for forming an image of a powder adhesive by means of a powd...
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WO/2023/054311A1 |
The present invention provides: a method for producing a crimped sheet, the method suppressing separation offset that occurs when a crimped postcard is opened, while using an image forming apparatus that is capable of performing a printi...
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WO/2023/053726A1 |
Provided is a powder composed of calcium-titanium composite oxide particles having a small particle diameter and a small specific surface area. The calcium-titanium composite oxide having an average primary particle diameter of 100 nm or...
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WO/2023/048289A1 |
An electrostatic charge image developing toner which contains toner particles containing a binding resin, wherein: D1(90), D50(90), D1(150) and D50(150) are each 0.5-2.5, inclusive, if the loss tangent tanδ at a strain of 1% and a tempe...
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WO/2023/047771A1 |
This three-dimensional object manufacturing method involves: a step for forming an adhesive area on part of a sheet-form print medium by means of electrophotographic method using a pressurized phase transition resin toner that produces a...
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WO/2023/046624A1 |
The present invention relates to a surface-modified particle for use in a toner composition, a method of preparing the surface-modified particle according to the invention, a method for treating a surface of a substrate with at least one...
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WO/2023/038677A1 |
A toner particle including a core particle, first inorganic particles externally added to the core particle, and second inorganic particles externally added to the core particle. The first inorganic particles have a true density of 3.0 g...
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WO/2023/038673A1 |
A developer including a toner particle and a carrier particle. The toner particle includes a toner core particle and alumina particles externally added to the toner core particle. The alumina particles have an average particle diameter o...
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WO/2023/013332A1 |
Provided is a pigment composition that has excellent dispersibility, weathering resistance, and thermal resistance, has good storage stability, and includes isoindoline compounds that can form an image having high chroma, the pigment com...
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WO/2023/281881A1 |
In a two-component developer according to the present invention, external additive particles contained in toner particles contain resin particles that contain a thermoplastic resin. Carrier particles have coating layers containing a coat...
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WO/2023/281880A1 |
With respect to a two-component developer according to the present invention, toner particles comprise toner base particles and external additive particles that contain strontium titanate particles. The first content ratio, which is the ...
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WO/2023/282886A1 |
An external additive for a toner is described. An example external additive comprises tin oxide, aluminum oxide, and a silica-polymer composite.
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WO/2023/281882A1 |
With respect to a two-component developer according to the present invention, external additive particles in toner particles contain silica particles. The number average primary particle diameter of the silica particles is 30 nm to 120 n...
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WO/2023/281883A1 |
With respect to a two-component developer according to the present invention, external additive particles in toner particles contain resin particles. The resin particles contain a crosslinked resin that has a repeating unit derived from ...
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WO/2023/282035A1 |
Provided is a compound that has a high biomass degree (more preferably a compound that has a biomass degree of 100%) and that is obtained by utilizing a natural pigment, wherein the compound has exceptional color development properties a...
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WO/2022/250149A1 |
The present invention provides: ferrite particles having a spinel crystal structure that can be assigned to the space group Fd-3m, with the ferrite composition thereof being expressed in a specific formula; a carrier for an electrophotog...
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WO/2022/250150A1 |
The present invention provides a ferrite particle comprising: a ferrite particle main body that has a spinel-type crystal structure attributed to a space group Fd-3m, in which the spinel composition is represented by the specific formula...
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WO/2022/244573A1 |
A carrier core material according to the present invention comprises ferrite particles, contains CaSiO3, and has a true density at least equal to 3.5 g/cm3 and at most equal to 4.5 g/cm3. A particle strength index calculated from formula...
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WO/2022/230997A1 |
The toner is resistant to the generation of toner clumping, exhibits a stable charging performance regardless of the use environment, and exhibits little fluctuation in charging performance even during continuous high-print-count printin...
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