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7390604 |
Negatively chargeable spherical toner, color image forming apparatus, and process for producing negatively chargeable spherical toner
The present invention provides a negatively chargeable spherical toner having: a toner mother particle having a binder resin and a colorant, which has: a number average particle size of from 4.5 to...
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7390603 |
Image forming apparatus and toner
The present invention provides An image forming apparatus having: a negatively chargeable spherical toner; an latent image carrier; a charging member for charging a surface of the latent image...
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7387670 |
Pigment preparations based on phthalocyanine pigments
A pigment preparation comprising at least one copper phthalocyanine pigment from the group of C.I. Pigment Blue 15, 15:0, 15:1,15:2, 15:3, 15:4, and 15:6, and at least one pigment dispersant of the...
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7384722 |
Method for preparing functional particulate organic material, toner using the functional particulate organic material, and image forming method and apparatus using the toner
A method for preparing a functional particulate organic material, including providing a suspension of a particulate organic material having an acid group on a surface thereof; reacting a metal...
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7371495 |
Toner
A toner is formed of toner particles including a polyester resin as a principal component, and at least a colorant and a charge control agent, and externally added inorganic fine particles and...
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7354688 |
Toner compositions with surface additives
A toner composition includes a binder, a colorant, and a surface additive package including a polydimethylsiloxane surface treated silica, a surface treated titania, and calcium sterate. The toner...
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7354687 |
Dry toner blended with wax
Dry electrographic toner compositions are provided comprising a plurality of dry toner particles, wherein the toner particles comprise polymeric binder comprising at least one amphipathic copolymer...
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7344813 |
Emulsion aggregation toner having gloss enhancement and toner release
A toner includes particles of a resin, an optional colorant, a first wax and a second wax, where the toner particles are prepared by an emulsion aggregation process. Additional waxes can also be...
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7320850 |
Magenta toner
A magenta toner is provided which contains at least a binder resin, a colorant, and a wax, in which a maximum heat-absorption peak temperature as measured using a differential scanning calorimeter,...
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7318987 |
Dry toner comprising entrained wax
Dry electrographic toner compositions are provided comprising a plurality of dry toner particles, wherein the toner particles comprise polymeric binder comprising at least one amphipathic copolymer...
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7314696 |
Electrophotographic toner and development process with improved charge to mass stability
Toners and developers are disclosed. The toner of the present invention contains at least one toner resin, at least one charge control agent, at least one surface treatment agent, and optionally at...
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7312010 |
Particle external surface additive compositions
A toner having at least one binder, at least one colorant and external additives. The external additives include at least one of silica and titania, and at least two metal stearates. A developer...
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7312009 |
Color toner having low contamination of charging elements
The present invention relates to a non-magnetic mono-component toner comprising a toner mother particle, and a coating layer formed on the mother particle where the coating layer comprises fatty...
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7306886 |
Dry toner comprising wax
Dry electrographic toner compositions are provided comprising a plurality of dry toner particles, wherein the toner particles comprise polymeric binder comprising at least one amphipathic copolymer...
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7300736 |
Toner, and developer, image forming method, image forming apparatus and process cartridge using the toner
A toner contains: (A) a binder resin; (B) a colorant; (C) a charge controlling agent; and (D) an additive. (A) contains: a polyester resin containing no tetrahydrofuran-insoluble component; and...
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7300734 |
Toner compositions
A toner composition comprising a binder, colorant, and a charge control surface additive mixture comprising a mixture of a first titanium dioxide possessing a first conductivity and a second...
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7288352 |
Toner compositions with surface additives
A toner composition including a binder, a colorant, and a surface additive package including a surface treated silica, a surface treated titania, and magnesium stearate.
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7276320 |
Surface particle attachment process, and particles made therefrom
A method of forming toner particles having surface particles attached thereto includes the steps of aggregating a material of at least one binder material and at least one colorant to produce toner...
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7244537 |
Toner for developing an electrostatic charge image and method for its production
To provide a toner for developing an electrostatic charge image, which has a good low temperature fixing property whereby it is useful for an image-forming device of a low temperature heat fixing...
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7232632 |
Color toners and image forming method using the color toners
A method for forming a full color image including: forming at least yellow, magenta and cyan color toner images on a receiving material to form a full color image thereon; and fixing the full color...
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7217485 |
Toner for electrophotography, and image fixing process, image forming process, image forming apparatus and process cartridge using the same
A toner for electrophotography contains a binder resin, a charge control agent, and a colorant. The colorant is a black iron oxide compound containing 10 to 45% by weight of titanium component...
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7208256 |
Toner for image formation, method of producing the toner, toner container, toner cartridge, process cartridge, and image forming apparatus
A toner for image formation is provided, which is produced by dispersing in an aqueous solvent a toner composition which includes a composition thermally soluble in an organic solvent and a...
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7160662 |
Electrostatic latent image developing agent and image forming method
The present invention relates to an image forming method including: a charging step; an electrostatic latent image forming step; a developing step; a transfer step; a fixing step; and a cleaning...
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7153353 |
Carnuba silicone wax
A carnuba silicone wax which does not contain free silicone oil. This wax is obtained by reacting a silicone compound having a substituent with reactivity to the hydroxyl group in natural carnuba...
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7150954 |
Image forming method and toner for use in the method
An image forming method, comprising passing a toner image-bearing sheet through a nip defined between two rollers including a heater roller to fix the toner image on the sheet, wherein the toner...
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7150953 |
Developer
A developer capable of providing an excellent image without causing a charging failure even after a long-term and repeated use contains a toner particle having a binder resin and a colorant, an...
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7144628 |
Spherical silica-titania-based fine particles surface-treated with silane, production process therefor, and external additive for electrostatically charged image developing toner using same
Spherical silica-titania-based fine particles surface-treated with silane are provided. The fine particles have a titanium atom content of 0.001 to 5% by weight, a frictional electrification with...
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7142804 |
Toner, toner cartridge that holds the toner therein, and image forming apparatus into which the toner cartridge is attached
A toner is used in an image-forming apparatus that incorporates a toner-collecting member. The toner-collecting member collects residual toner on a surface of an image-bearing body. The toner...
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7141185 |
High conductivity inks with low minimum curing temperatures
Conductive ink compositions which can be cured to highly conductive metal traces by means of “chemical welding” include additives which reduce the curing temperatures for use with...
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7135263 |
Toner
In a toner having toner particles which have toner base particles having at least a colorant and a binder resin, and an inorganic fine powder; the inorganic fine powder has a primary-particle...
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7115349 |
Toner
Provided is toner which is excellent in developing property, transferring property, and fixing property, hardly affected by its surrounding, and has good endurance. The toner has a peak temperature...
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7097951 |
Toner
A toner of the present invention comprises at least a binder resin comprising as a main component a polyester resin, a wax, and a colorant, in which in case of measuring a wettability of the toner...
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7083888 |
External additive for electrostatically charged image developing toner
An external additive for electrostatically charged image developing toner is provided. The additive includes spherical hydrophobic fine silica particles having primary particles with a particle...
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7041420 |
Emulsion aggregation toner having novel surface morphology properties
A toner of the invention includes toner particles comprising a styrene acrylate binder and at least one colorant, and wherein the toner particles, in the absence of external additives, have a mean...
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6994942 |
Non-magnetic single-component toner, method of preparing the same, and image forming apparatus using the same
A non-magnetic single-component toner 8 of the present invention has toner mother particles 8 a, and external additives 12 comprising: two hydrophobic silicas 13, 14 of which particle...
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6990306 |
Developing agent and image forming apparatus
An image is formed by using in combination a photoreceptor having a surface roughness Rz not larger than 1.0 and a developing agent comprising a toner containing toner particles containing a binder...
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6964835 |
Toner and image forming method using the toner
A toner including a at least a binder resin; a colorant; and a zirconium compound including zirconium and at least one of an aromatic oxycarboxylic acid and a salt thereof, wherein the zirconium...
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6929894 |
Toner and fixing method
A toner is disclosed which is composed of toner particles containing at least a binder resin, a colorant and a wax, and an external additive. The wax has, in its DSC endothermic curve, a maximum...
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6929893 |
Electrostatic image dry toner composition, developer for developing electrostatic latent image and image forming method
An electrostatic image dry toner composition comprising a binding resin, a colorant, a releasing agent, and two or more kinds of inorganic oxide powders having different volume average primary...
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6911289 |
Toner, method for manufacturing the toner, and image forming method and apparatus using the toner
A toner including toner particles including a binder resin and a release agent, wherein when the toner is molded into a plate upon application of a pressure of 478 kg/cm 2 , the toner plate has a...
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6838218 |
Black toner
A black toner comprises a binder resin and black composite particles having an average particle diameter of 0.005 to 0.30 μm, and comprising: extender pigments as core particles; a gluing...
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6835517 |
Toner, developer and image forming method using the toner
A toner including at least a binder resin; a colorant; a charge controlling agent; and a wax (B), in which the charge controlling agent comprises a compound selected from the group consisting of:...
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6830859 |
Charge control agent and toner using same
A charge control agent containing a barium salt of a sulfoisophthalic acid compound and optionally a metal salt of a salicylic acid compound. A toner for developing an electrostatic latent image...
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6824944 |
Toner
A toner process involving, for example, contacting a toner surface with a reducing agent and a metal halide.
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6824943 |
Toner for electrostatic image development
The present invention provides a toner for electrostatic image development which employs a black colorant free from a toxic substance and exhibits stable charge behavior even after extended use or...
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6808852 |
Toner and heat-fixing method
A toner characterized by improved fixing performances with no or minimum oil application is formed of: (i) a binder resin, (ii) a colorant, (iii) a hydrocarbon wax, (iv) a resin composition formed...
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6800413 |
Low-silanol silica
A silylated silica having an SiOH density per nm 2 of less than 0.6, based on the BET-method surface area (DIN 66131 and 66132), is prepared by silylating silica in a process where loading,...
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6797447 |
Electrostatic image developer
By simultaneously atomizing a siloxane and two organometallic compounds of different metals M1 and M2 exclusive of silicon in a flame for combustion, spherical amorphous ternary complex oxide fine...
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6783908 |
Surface-treated toner particles, process for forming, and electrostatographic developer containing same
An electrostatographic toner composition consists essentially of noncrosslinked linear polymeric toner particles, about 0.7 wt. % to about 4 wt. % of hydrophobic silica particles disposed on the...
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6780556 |
EXTERNAL ADDITIVE FOR ELECTROPHOTOGRAPHIC TONER, METHOD FOR MANUFACTURING THE EXTERNAL ADDITIVE, ELECTROPHOTOGRAPHIC TONER USING THE EXTERNAL ADDITIVE, AND IMAGE FORMING APPARATUS USING THE ELECTROPHOTOGRAPHIC TONER
An external additive for a toner, having an average primary particle diameter not greater than 100 nm and including at least inorganic fine particles and a hydrophobizing agent applied to the...
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