Fuji Xerox Co., Ltd.

Sakiko Hirai

Masaru Takahashi

Atsushi Sugawara

Atsushi Sugitate

Satomi Hara

Shotaro Takahashi

Yasuo Kadokura

Satoshi Miura

Daisuke Tomita

Akira Matsumoto

Shuji Sato

Daisuke Noguchi

Yukiaki Nakamura

Satoshi Kamiwaki

Makoto Kamisaki

Shinya Nakashima

Provided is a toner including toner particles. The toner particles has a volume particle diameter distribution index on a side of the largest diameter (GSDv (90/50)) of 1.26 or less; a number particle diameter distribution index on a side of the smallest diameter (GSDp (50/10)) of 1.28 or less; GSDv (90/50)/GSDp (50/10) of from 0.96 to 1.01; and an average circularity of 0.95 or more and 1.00 or less.

Toner and toner set

An electrostatic charge image development toner satisfies the following: a maximum slope of an absolute value of log (loss modulus G&#x2033;) from 60&#xb0; C. to 90&#xb0; C. is 0.07 or more and 0.16 or less; a maximum slope of an absolute value of log (loss modulus G&#x2033;) from 90&#xb0; C. to 130&#xb0; C. is 0.08 or less; and G&#x2033;(60) is 5.0&#xd7;10Pa or more and 1.0&#xd7;10Pa or less, where G&#x2033;(60) is a loss modulus at 60&#xb0; C.

Electrostatic charge image development toner and electrostatic charge image developer

An electrostatic charge image developing toner has a surface property index value represented by Formula S of 2.0 to 2.8, an electrostatic charge image developing toner has a surface property index value represented by Formula S of more than 2.8 and 3.5 or less, and an electrostatic charge image developing toner has a surface property index value represented by Formula S of more than 1.0 and less than 2.0 and a calculated value of a specific surface area in Formula S of 0.70 to 1.3:(Surface property index value)=(Measured value of specific surface area)/(Calculated value of specific surface area)&#x2003;&#x2003;Formula S

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

An electrostatic charge image developing toner includes a styrene-acrylic resin and exhibits a z average molecular weight Mz of 80,000 to 400,000 and a molecular weight distribution curve satisfying Expression (1): 1.3&#x2264;b/a&#x2264;2.0, and an electrostatic charge image developing toner includes a styrene-acrylic resin, and exhibits a z average molecular weight Mz of 100,000 to 400,000 and a molecular weight distribution curve satisfying Expression (A): 0.75&#x2264;(c+d)/(2&#xd7;d)&#x2264;0.95, wherein a, b, c and d are defined in the specification.

A brilliant toner includes toner particles that contain a binder resin and a brilliant pigment which has a flake shape, wherein an average thickness of the brilliant pigment is greater than 0.5 &#x3bc;m to 1.5 &#x3bc;m.

Brilliant toner, electrostatic charge image developer, and toner cartridge

An electrostatic charge image developing toner includes toner particles each including an amorphous resin and a crystalline resin, wherein, when the toner particles are subjected to a measurement to determine an area ratio of the crystalline resin on a cross section of the toner particle before and after being heated at a temperature of 50&#xb0; C. and a humidity of 50% RH for three days, a relationship between an area ratio a (%) of the crystalline resin on a cross section with respect to the toner particles before being heated, and an area ratio b (%) of the crystalline resin on the cross section with respect to the toner particles after being heated satisfies Expression (1): 0.9&#x2264;a/b&#x2264;1.0.

An electrostatic charge image developing toner set includes a brilliant toner including toner particles that include a brilliant pigment and a first binder resin, a black toner including toner particles that include a second binder resin, and a color toner except a black toner, including toner particles that include a third binder resin, wherein the brilliant toner, the black toner and the color toner satisfy Expression (1): Dielectric loss factor of the brilliant Toner&#x3e;Dielectric loss factor of the black toner&#x3e;Dielectric loss factor of the color toner and Expression (2): 25&#xd7;10&#x2266;(Dielectric loss factor of the brilliant toner)&#x2212;(Dielectric loss factor of the color toner)&#x2266;95&#xd7;10.

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

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

A brilliant toner includes release agent domains meeting conditions (1) a length of the release agent domain in a longitudinal axis direction is 300 nm to 1,500 nm, (2) a ratio between the length in the longitudinal axis direction and in a short axis direction of the release agent domain is 3.0 to 15.0, (3) an angle between (a) a tangent line passing through a contact point of (a1) a circumference of a circle that is centered at a centroid of the release agent domain and is inscribed in an outer edge of the toner particle and (a2) the outer edge and (b) a line passing through the centroid and extending in the longitudinal axis direction is 0&#xb0; to 45&#xb0;, and (4) a ratio of a distance between the centroid and the contact point to an equivalent circle diameter of the toner particle is 0.03 to 0.25.

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

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.

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.

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Kanagawa, Japan

Sakiko Hirai