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Class 430/137.11 - By coating


Subclass of Class 430 - Radiation imagery chemistry: process, composition, or product thereof
Definition: Process wherein an outer covering of material is applied
No. of patents: 178
Last issue date: 04/30/2013


1          
NumberTitleIssue Date
8431314Colored resin particle and method for producing the same
The present invention provides a method for producing a colored resin particle, the method including: preparing an oil phase in which at least a resin and a colorant are dissolved or dispersed in an organic solvent; preparing an aqueous phase containing at least a s...
04/30/2013
8431317Method for manufacturing capsule toner
A method for manufacturing a capsule toner, capable of obtaining a capsule toner including a coating layer having uniform thickness at high yield is provided. The method for manufacturing a capsule toner includes a fine resin particle adhering step of adhering fine ...
04/30/2013
8431316Toner manufacturing method
A toner manufacturing method is provided. The toner manufacturing method includes a step of adhering fine resin particles whose volume average particle size is 5% or more and 17% or less of a volume average particle size of toner base particles, to surfaces of the t...
04/30/2013
8431315Capsule toner, method of manufacturing the same, and two-component developer
There are provided a capsule toner, a two-component developer, and a capsule toner manufacturing method. The capsule toner in which a resin coating layer made of fine release-agent particles and fine resin particles is made on the surfaces of toner base particles, a...
04/30/2013
8389195Capsule toner and method of manufacturing capsule toner
A capsule toner achieving both low temperature fixability and hot offset resistance, and a method of manufacturing the capsule toner are provided. A capsule toner includes a toner base particle containing a binder resin and a colorant, and a resin coating layer form...
03/05/2013
8389193Method of manufacturing toner, toner obtained by method thereof, one-component developer, two-component developer, developing device, and image forming apparatus
There are provided a toner manufacturing method of manufacturing a toner which has excellent characteristics such as fluidity and preservation stability and in which a resin layer having uniform thickness is formed on a surface of tone core particle, a toner obtaine...
03/05/2013
8389194Method of manufacturing toner, toner obtained by method thereof, one-component developer, two-component developer, developing device and image forming apparatus
A toner manufacturing method, a toner obtained by the method, a one-component developer, a two-component developer, a developing device and an image forming apparatus are provided. By using a toner manufacturing apparatus including a powder passage, a spraying secti...
03/05/2013
8372573Toner
A toner in which, in a loss tangent (tan δ) curve obtained by a dynamic viscoelasticity test, the tan δ shows a maximal value δa in the temperature region of 28.0-60.0° C., which maximal value δa is 0.50 or more, and shows a minimal value δb in the temperature...
02/12/2013
8247156Processes for producing polyester latexes with improved hydrolytic stability
A process for making a latex emulsion suitable for use in a toner composition includes contacting at least one crystalline polyester resin with an organic solvent and a stabilizing agent to form a resin mixture, adding a neutralizing agent, and deionized water to th...
08/21/2012
8236474Method for manufacturing toner, toner, developer, developing device and image forming apparatus
A method for manufacturing a toner is provided. The method for manufacturing a toner uses a rotary stirring apparatus. The rotary stirring apparatus includes at least a circulation section, a temperature regulation section and a spraying section composed of a two-fl...
08/07/2012
8221953Emulsion aggregation process
The present disclosure provides emulsion aggregation (EA) toner particles having less pigment on the particle surface and a more uniform pigment distribution. The process of preparing the toner includes specific mixing speeds and use of specific temperatures during ...
07/17/2012
8182974Method for producing negative charging toner
An object of the present teachings is to provide a method for producing a negative charging toner having a fine surface charge state. For this object the present teachings provide a method for producing a negative charging toner comprising a polyester resin as a mai...
05/22/2012
8158322Toner
The toner of the present invention, comprising a colored resin particle and an external additive, wherein said external additive contains a silica fine particle (A) having a Dv50/Dv10 of 1.8 or more, in which Dv10 represents a particle diameter at which a volume cum...
04/17/2012
8119319Method for producing positive charging toner
The present teaching provides a method for producing a positive charging toner that can exhibit stable charge characteristics. According to the present teaching, a positive charging toner is produced by preparing a base particle suspension having a conductivity not ...
02/21/2012
8012661Method for producing developing agent
A method for producing a developing agent contains mechanically shearing a mixture containing a polyester resin, a colorant and a releasing agent to form first fine particles, aggregating the first fine particles to form aggregated particles as a core, aggregating s...
09/06/2011
7960085Method for producing positively chargeable toner
A method for producing a positively chargeable toner is described. The method for producing a positively chargeable toner may include the steps of: mixing and emulsifying a charge-controlling resin having a positive polar group, an organic solvent and an aqueous med...
06/14/2011
7943283Toner compositions
Processes for producing toner are provided which utilize reactive coalescing agents in forming the toner particles, as well as toners produced by such processes. ...
05/17/2011
7932010Toner, method of manufacturing the same, two-component developer, developing device, and image forming apparatus
There are provided a toner, a method of manufacturing the toner, a two-component developer, a developing device, and an image forming apparatus, which are excellent in a charge rising property, environmental stability, and life stability during printing and which ca...
04/26/2011
7799502Toner processes
A process including mixing a sulfonated polyester resin, a colorant, and a coagulant; heating the resulting sulfonated polyester mixture; adding a polymetal halide and an anionic latex to form coated toner particles; and heating the coated toner particles is disclos...
09/21/2010
7794911Toner compositions
A toner having a core with a first latex having a specific glass transition temperature, and further having a shell surrounding the core with a second latex having a specific glass transition temperature and possessing functional groups, and processes for producing ...
09/14/2010
7569322Toner, method for producing toner, two-component developer, and image forming apparatus
Toner of the present invention includes aggregated particles formed by aggregating at least resin particles, pigment particles, and wax particles in an aqueous medium in the presence of a water-soluble inorganic salt. The wax includes at least one selected from the ...
08/04/2009
7517631Method for manufacturing polymerized toner
In a method for manufacturing a polymerized toner, in a washing step after polymerization, colored polymer particles are washed using a continuous pressurizing filter in a circulation washing manner, in which a dispersion containing colored polymer particles obtaine...
04/14/2009
7507516Toner and method of manufacturing toner
Disclosed is a method of manufacturing toner comprising the steps of adding oil-droplets containing a radically polymerizable monomer into an associated particle dispersion formed by association-fusing resin particles and colorant particles, and forming a shell by c...
03/24/2009
7419753Toner compositions having resin substantially free of crosslinking, crosslinked resin, polyester resin, and wax
A toner composition that includes a resin substantially free of cross linking, a cross linked resin, a polyester resin as a crystalline polyester resin, and a colorant. ...
09/02/2008
7416827Ultra low melt toners having surface crosslinking
Ultra low melt toner compositions with improved non-additive heat cohesion are disclosed. These toner compositions include toner particles comprising amorphous resins containing at least one unsaturated moiety, and when the toner particles are surface treated with a...
08/26/2008
7374846Method for preparing of non-magnetic monocomponent color toner having superior long term stability
The present invention relates to a non-magnetic monocomponent color toner composition and a method for preparing the same, and more particularly to a non-magnetic monocomponent color toner composition having a narrow charge distribution, good charging characteristic...
05/20/2008
7371498Extrusion drying process for toner particles useful in electrography
The present invention relates to methods of drying and recovering toner particles from a liquid carrier. The methods are very effective to generate discrete, substantially non-agglomerated dry toner particles in a manner that preserves the particle size and particle...
05/13/2008
7364828Toner for electrophotography, method of manufacturing the toner, developer, development method, transfer method, and process cartridge using the toner
The method of manufacturing toner for electrophotography includes the steps of dissolving or dispersing a toner composition containing a resin and a coloring agent into polymerizable monomers to provide a solution or a dispersed system, emulsifying the solution or t...
04/29/2008
7358021Hybrid toner processes
A toner process that includes a first heating of a colorant dispersion, a first polyester resin free latex emulsion, a second polyester latex emulsion, and a wax dispersion in the presence of a coagulant containing a metal ion; adding a third polyester free latex; a...
04/15/2008
7354690Toner and method for producing the same, and, developer, toner-containing container, process cartridge, image forming apparatus and image forming method
A toner producing method is provided, which comprises preparing toner base particles in an aqueous medium, wherein the toner base particles comprise resin fine particles, and forming a coating layer on the surface of the toner base particles, wherein the coating lay...
04/08/2008
7344817Drying process for toner particles useful in electrography
The present invention relates to methods of drying and recovering toner particles from a liquid carrier. The methods are very effective to generate discrete, substantially non-agglomerated dry toner particles in a manner that preserves the particle size and particle...
03/18/2008
7323281Toner, developer including the toner, container containing the toner or the developer and method of producing the toner
A toner comprising toner particles comprising a first binder resin; a second binder resin different from said first binder resin and having a glass transition temperature of from 40 to 55° C.; a colorant; and a release agent, and a particulate resin material which ...
01/29/2008
7318989Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method
To provide a toner that can provide long-term removability and high-definition images with reduced image layer thickness and densely-packed toner particles, a developer capable of forming high-quality images using the toner, a toner container for containing the tone...
01/15/2008
7297459Fluidized bed spray coating of polyester chemical toners with additives
A process for manufacturing a toner having improved relative humidity sensitivity is described. The process comprises forming polyester toner particles by emulsion/aggratation, fluidizing the toner particles with a stream of inert gas while spraying the toner partic...
11/20/2007
7285367Method of manufacturing a toner
A method of manufacturing a toner for developing static charges in an aqueous system is provided which includes preparation step for a resin kneaded product, preparation step for the aqueous dispersion of a less water-soluble alkaline earth metal salt, preparation s...
10/23/2007
7252920Method for manufacturing polymerized toner
A method for manufacturing a polymerized toner comprising a process for forming fine droplets of a polymerizable monomer composition in an aqueous dispersion medium, and a process for polymerizing the polymerizable monomer composition after the process for forming f...
08/07/2007
7217488Toner comprising core layer and shell layer
A toner comprising: a core layer and a shell layer formed on the core layer, wherein the core layer and the shell layer respectively comprise a first wax and a second wax; the second wax having a melting point that is higher than a...
05/15/2007
7208255Powder-coated toner particles and method of making same
A color toner composition for developing latent electrostatic images includes nanopowder-coated toner particles, the powder-coated toner particles being characterized in that each comprises a core toner particle having a volume average diameter, Dp, and t...
04/24/2007
7183034Image forming method, image forming apparatus and toner cartridge
The present invention provides a tandem-type image forming method using a trickle developing system, wherein the average circularity of a toner contained in at least a supplementary developer used for appropriately supplying a developer to a developing device is in ...
02/27/2007
7179576Toner and production process for the same
A toner includes core particles containing a resin and a colorant, and a coating layer formed over the core particles. The coating layer includes at least one type of coating particles selected from the group consisting of wax-containing resin microparticles contain...
02/20/2007
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