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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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WO/2022/207694A1 |
The present invention relates to a core-shell particle, wherein the core comprises at least one chemical element, under the provision that in the case that one chemical element is present, said chemical element is not silver, and/or a co...
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WO/2022/202135A1 |
Resin particles each include a crystalline polyester resin, an amorphous polyester resin, a release agent, and a colorant. The crystalline polyester resin includes an acid component and an alcohol component as constitutional units, and t...
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WO/2022/195570A2 |
A toner external additive composition of the present invention comprises, as a core component, tin oxide, to be usable as an alternative material for conventional titanium dioxide (TiO2), and thus can respond to future regulations on tit...
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WO/2022/181018A1 |
The present invention is a surface-treated sol-gel silica particle manufacturing method that includes: a step (A1) for obtaining hydrophilic sol-gel silica particles that have a silanol group on the surface thereof and are substantially ...
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WO/2022/176336A1 |
The present invention addresses the problem of providing a pigment which exhibits good and smooth texture to the touch when applied, while having good color developability and good gloss as well as good spreadability on the skin when use...
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WO/2022/176388A1 |
The present invention pertains to a method for manufacturing surface-treated vapor phase silica particles, said method being characterized by comprising: (A1) a step for adding 1,3-divinyl-1,1,3,3-tetramethyldisilazane to starting vapor ...
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WO/2022/172630A1 |
An image forming method includes forming an electrostatic latent image on an electrostatic latent image bearer, developing the electrostatic image with a toner to form a visible image, transferring the visible image onto a recording medi...
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WO/2022/163709A1 |
A toner comprising toner particles. This toner is characterized by containing gold nanorods and characterized in that, when an aspect ratio distribution of the gold nanorods contained in the toner is measured, the aspect ratio distributi...
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WO/2022/138802A1 |
Provided is an image forming apparatus including a toner, and a fixing device configured to fix an image formed with the toner on a recording medium. The fixing device includes a fixing belt that is an endless belt, and a planar member c...
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WO/2022/132143A1 |
Described herein is a liquid electrophotographic ink composition comprising a first thermoplastic resin comprising a copolymer comprising an alkylene monomer and a monomer comprising an epoxide group, and a second thermoplastic resin com...
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WO/2022/132132A1 |
Described herein is a method of producing a liquid electrophotographic ink composition comprising combining a pigment with a charge director in a carrier liquid to produce a pigment dispersion; and combining a thermoplastic resin with th...
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WO/2022/066165A1 |
Described herein is a liquid electrophotographic ink composition comprising chargeable particles comprising a thermoplastic resin; and a carrier liquid produced from vegetable oil or animal fat, the carrier liquid comprising an aliphatic...
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WO/2022/066241A1 |
An example epoxy group-containing toner particle includes a binder resin including a pendant-type amorphous polyester resin containing 1 mol% to 15 mol% of a constituent unit having a pendant group with 3 to 32 carbons, and a crystalline...
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WO/2022/050120A1 |
An image forming method comprises: transferring a toner on a photosensitive drum to a sheet, and applying a fixing solution to the transferred toner-bearing sheet. The toner contains a first binder resin, a second binder resin, and a thi...
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WO/2022/046235A1 |
A toner particle contains a binder resin, a colorant, and a wax. The binder resin contains a first amorphous polyester resin having a pendant group, a second amorphous polyester resin having no pendant group, and a crystalline polyester ...
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WO/2022/045097A1 |
[Problem] To provide: ferrite particles that have high environment stability of charging characteristics, and good charge rise properties; a carrier core material for an electrophotographic developer; a carrier for an electrophotographic...
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WO/2022/024410A1 |
Provided is a method for manufacturing a resin particle dispersion for a toner, whereby a toner having superior low-temperature fixing properties can be obtained.　The method for manufacturing a resin particle dispersion for a toner, ac...
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WO/2022/009793A1 |
The polyester resin according to the present invention is obtained by using a polyethylene terephthalate, a multivalent carboxylate component, and a polyhydric alcohol component. In the polyester resin, the total contained amount of at l...
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WO/2022/004607A1 |
Provided is a toner for development of electrostatic images that comprises color resin particles containing a binder resin, a color agent, a charge control agent, and a mold release agent, wherein the storage modulus G'(60) of the color ...
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WO/2021/200171A1 |
Provided are: ferrite particles in which the environmental stability of charging characteristics is high and the charge rise is good; an electrophotographic developer carrier core material; an electrophotographic developer carrier; and a...
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WO/2021/201115A1 |
A novel toner which is provided with storage stability and low-temperature fixing properties, contains particles containing a binder resin, a colorant and a wax, and which, when subjected to differential scanning calorimetry (DSC) which ...
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WO/2021/200172A1 |
Provided are: ferrite particles that can suppress the generation of carrier scatter in high temperature, high humidity environments, and have good developability; an electrophotographic developer carrier core material; an electrophotogra...
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WO/2021/172517A1 |
The present invention provides a toner set and an image forming method which provide excellent gradation and color reproducibility to an image including multiple colors and high printing durability against continuous printing, and which ...
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WO/2021/157372A1 |
An image forming device 1 performs development using a nonmagnetic one-component developer. The image forming device 1 includes: a photosensitive drum 31 that rotates around the axis thereof and that includes a drum circumferential surfa...
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WO/2021/154222A1 |
A liquid electrophotographic ink composition is described. The liquid electrophotographic ink composition comprises a ceramic pigment, a polymer resin, a glass frit, and a liquid carrier. Also described is a heat transferable printed ima...
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WO/2021/153711A1 |
Provided is toner having superior low-temperature fixing properties and storage properties. The present invention provides toner containing colored resin particles including a binder resin, a colorant, a softener, and a charge control ag...
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WO/2021/150287A1 |
A toner for developing an electrostatic image includes a core including a binder resin, a colorant, and a release agent, and a shell disposed on at least a portion of the surface of the core. The binder resin includes a first styrene-acr...
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WO/2021/145924A1 |
An example charging member has a surface layer including a binder resin, first particles, and second particles, the first and second particles being dispersed in the binder resin, the first particles include acrylic resin particles havin...
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WO/2021/141615A1 |
An example transfer member includes a support, and an elastic body layer coupled to the support. The elastic body layer includes a binder resin, an electron-conducting agent, an ion-conducting agent, and a cyan pigment containing a metal...
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WO/2021/141589A1 |
An electrostatic printing method for forming a structured image on a print substrate, the method comprising: providing an electrostatic ink composition; contacting the electrostatic ink composition with a latent electrostatic image on a ...
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WO/2021/134813A1 |
Provided is printer toner with rare earth spectrum traceability, which is characterized in: mixing cerium oxide and a cerium oxide reactant with other rare earth oxides and a reactant powder to be used as a spectrum tracing material; per...
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WO/2021/134812A1 |
A bronze red printer toner employing rare earth spectroscopy tracing. Yttrium oxide (1), a yttrium oxide reagent (2), other rare earth oxides (3) and a reagent powder (4) are mixed to form a spectroscopy tracing material which is mixed w...
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WO/2021/132684A1 |
A binder resin for toners, said binder resin containing a composite resin wherein a styrene acrylic resin unit and a polyester resin unit are bonded to each other via a covalent bond. With respect to this binder resin for toners, the aci...
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WO/2021/117870A1 |
This toner comprises toner particles containing a binder resin and a release agent, and is characterized in that: the binder resin contains a crystalline resin A; the crystalline resin A contains monomer units derived from a monomer (a);...
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WO/2021/112964A1 |
A toner particle includes a binder resin, a colorant, a releasing agent, and a dispersant. The binder resin includes a non-crystalline polyester resin containing 1 to 15 mol% of a polyfunctional carboxylic acid unit having a pendant grou...
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WO/2021/106844A1 |
Provided are toner particles for electrostatic charge image development, which are unlikely to be affected by the particle size of fine resin particles and which exhibit excellent fixing capability and heat resistant preservability. The ...
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WO/2021/108004A1 |
An example toner having a plurality of toner particles is provided. The toner particles include a core particle including a binder resin, a colorant, and a releasing agent, and an external additive to attach to a surface of the core part...
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WO/2021/094957A1 |
A carrier for forming an electrophotographic image is provided. The carrier comprises a core particle and a coating layer coating the core particle. The coating layer contains a chargeable particle. The carrier has an internal void ratio...
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WO/2021/096567A1 |
Described herein is a method of producing a perovskite material on a substrate by LEP printing comprising: printing a composition comprising a salt AX and a resin in a carrier liquid; printing a composition comprising a salt selected fro...
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WO/2021/086642A1 |
A foamable image forming toner includes a binder resin, a foaming agent, a colorant, a releasing agent and a charge control agent. An acid value of the toner is approximately 4 to 27 mgKOH/g.
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WO/2021/080919A1 |
A toner particle comprising: a binder resin; a colorant; and a wax, wherein the binder resin comprises: a first amorphous polyester resin having a pendant group; a second amorphous polyester resin having no pendant group; and a crystalli...
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