Fuji Xerox Co., Ltd.

Atsushi Sugitate

Masaru Takahashi

Shotaro Takahashi

Shuji Sato

Sakiko Hirai

Daisuke Noguchi

Satomi Hara

Wataru Yamada

Takeshi Iwanaga

Hidekazu Hirose

Sakae Takeuchi

Hiroyoshi Okuno

Hideaki Yoshikawa

Yasunobu Kashima

Atsushi Sugawara

Makoto Kamisaki

Shinpei Takagi

A titanium oxide particle surface-treated with a silane compound having a hydrocarbon group has absorption at a wavelength of about 400 nm or more and about 800 nm or less in an ultraviolet-visible absorption spectrum, and has an absorption peak at a wave number of about 2700 cmor more and about 3000 cmor less in an infrared absorption spectrum.

Titanium oxide particle and method for producing the same

A silica particle includes a silica particle body and a titania coating layer formed on a surface of the silica particle body through a reaction of a titanium compound having a structure in which a hydrocarbon group bonds to a titanium atom through an oxygen atom. The silica particle has absorption at a wavelength of about 400 nm or more and about 800 nm or less in an ultraviolet-visible absorption spectrum.

Silica particle comprising a titania coating and method for producing the same

A toner set includes a brilliant toner including a brilliant pigment; and a chromatic toner including a coloring agent that is different from the brilliant pigment, wherein the toner set satisfies the following expression:1.2&#x2266;1/2&#x2266;5.0wherein Qrepresents an endothermic quantity of the brilliant toner and Qrepresents an endothermic quantity of the chromatic toner.

Toner set, image forming apparatus, and image forming method

Provided is a toner set including at least a first brilliant toner that contains a brilliant pigment, and a second brilliant toner that contains a brilliant pigment and exhibits a different color from the first brilliant toner.

A brilliant toner includes a brilliant pigment, an azo yellow pigment, and a magenta pigment, wherein when a solid image in which a toner applied amount is 4.0 g/mis formed, color saturation of the image is 25 to 55, a hue angle is 65&#xb0; to 95&#xb0;, and lightness is 50 to 80.

Brilliant toner and electrostatic charge image developer

Provided is a brilliant toner containing a brilliant metallic pigment of which the surface is covered with at least one kind of metal oxides selected from a group consisting of silica, alumina, and titania, wherein the brilliant toner has a dielectric loss factor of from 10&#xd7;10to 60&#xd7;10.

Brilliant toner, developer, toner cartridge, process cartridge, and image forming apparatus

An electrostatic charge image developing toner includes toner particles containing a binder resin containing a polyester resin, a particle of at least one selected from a styrene-(meth)acrylic resin particle and an acrylic resin particle, and a brilliant pigment.

Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, and process cartridge

A brilliant toner includes a metallic pigment, and a Fe content in the brilliant toner is from 0.001% by weight to 2% by weight.

Brilliant toner, electrostatic charge image developer, and toner cartridge

A brilliant toner includes toner particles containing a brilliant pigment, and toner particles containing a yellow colorant without containing the brilliant pigment, wherein a ratio of the toner particles containing the yellow colorant without containing the brilliant pigment is 50% by number or greater.

A brilliant toner contains a metallic pigment and a binder resin, and content of Zn is from 0.00005% by weight to 1.0% by weight.

An electrostatic image developing toner including: first toner particles which contain a first binder resin and a brightness pigment; and second toner particles which contain a second binder resin and do not contain a brightness pigment, wherein the proportion of the second toner particles is in a range from 5% by number to 80% by number with respect to a total number of all toner particles.

Brightness toner, development, toner cartridge, process cartridge, image forming apparatus, and method for producing the brightness toner

An electrostatic charge image developing toner includes toner particles containing a binder resin and pigment particles and an external additive containing fluorine resin particles, wherein the electrostatic charge image developing toner satisfies the following expression: 2&#x2266;A/B&#x2266;100, wherein A represents reflectance at an acceptance angle of +30&#xb0; which is measured when a solid image is formed using the electrostatic charge image developing toner and the solid image is irradiated with incident light at an incidence angle of &#x2212;45&#xb0; by the use of a variable-angle photometer, and B represents reflectance at an acceptance angle of &#x2212;30&#xb0; which is measured when the solid image is irradiated with incident light at an incidence angle of &#x2212;45&#xb0; by the use of the variable-angle photometer.

Toner, developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

An electrostatic image developing toner including: a toner matrix particle having an adhering particle adhered onto the surface of a central particle, wherein a volume average value of a ratio X of a peripheral length PM to a circle-corresponding diameter D is from 3.6 to 5.0.

Electrostatic image developing toner, method for manufacturing electrostatic image developing toner, developer, and image forming method

The electrostatic charge image developing toner includes a colorant containing rutile type and anatase type titanium oxides, and a binder resin.

Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

An electrostatic latent image developing toner contains toner particles that contain a binder resin and a pigment; and an external additive that contains inorganic particles, a ratio (C/D) of an average maximum thickness C to an average equivalent circle diameter D in the toner particles is from 0.05 to 0.7, the inorganic particles include silicone oil-treated inorganic particles in which the amount of free silicone oil with respect to the inorganic particles is from 0.1% by weight to 10% by weight, and the amount of the silicone oil-treated inorganic particles added with respect to 100 parts by weight of the toner particles is from 0.1 part by weight to 10 parts by weight.

Electrostatic latent image developing toner, electrostatic latent image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

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Kanagawa, Japan

Atsushi Sugitate