Konica Minolta Business Technologies, Inc.

Konica Minolta Medical and Graphic, Inc.

Kimihiko Ookubo

Keiko Ishidai

Issei Nakahara

Kaori Ono

Koji Daifuku

Ryohei Iwamoto

Masato Nishizeki

Norio Miura

Takeshi Kurata

Provided is a production process for a colorant which contains a silicon phthalocyanine compound making it possible to reach a targeted particle diameter even by a conventional dispersing method and which is excellent in performances such as a color reproducibility, a light fastness, an electrostatic property, a transparency and the like, and a colorant composition, a toner, an ink for ink jet recording and a color filter which are excellent in the above performances. The above production process is a production process for a colorant containing a silicon phthalocyanine compound and a copper phthalocyanine compound and is characterized by having a preparing step of reacting raw materials of a silicon compound and phthalocyanine under the presence of a copper salt or the copper phthalocyanine compound described above to prepare the silicon phthalocyanine compound described above.

Production process for colorant, colorant composition, toner, ink for ink jet recording and color filter

Disclosed is a toner for electrophotography, which has good hue, good light resistance and good electrostatic charge, and is capable of providing images that are free from white spots. The toner for electrophotography exhibits a good performance. Specifically disclosed is a toner for electrophotography, which is characterized by containing at least one metal-containing compound that is represented by general formula (1). (In the formula, R1 represents an alkyl group; R2 represents a hydrogen atom, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfamoyl group, a sulfinyl group, an alkylsulfonyl group, an arylsulfonyl group, an acyl group, a halogen atom or a cyano group; and R3 represents a group that has 9 or more carbon atoms and an aromatic hydrocarbon structure.) 

Toner for electrophotography and metal-containing compound

A copper complex compound represented by Formula (1) is disclosed. 

Copper complex compound and electrophotographic toner containing the same

An electrophotographic toner is disclosed. The toner contains a compound of Formula X-1 and a copper complex compound represented by the following Formula (1), which are defined detain in the specification. 

Electrophotographic toner

A compound represented by Formula (X-1) is disclosed. in the formula, Rxand Rxeach independently represents an alkyl group, Lx is a hydrogen atom or an alkyl group, Gxis an alkyl group having 2 or more carbon atoms, Gxis an alkyl group or an aromatic hydrocarbon group, Gxis a hydrogen atom, a halogen atom, a Gx-CO&#x2014;NH&#x2014; group or a Gx-N(Gx)-CO&#x2014;group, Gxand Gxeach independently represents a hydrogen atom or a substituent, and Qx, Qx, Qx, Qxand Qxeach independently represents a hydrogen atom or a substituent. An electrophotographic toner containing the compound is also disclosed.

Pyrazolotriazole compound and electrophotographic toner

A copper complex compound represented by Formula (1) is disclosed.  in the formula, groups represented by R is a substituent, n is an integer of from 1 to 5 and the total carbon number contained in (R) n is 14 or more. A toner for electrophotography containing the compound is also disclosed.

An active ray curable composition, including an epoxy compound which is represented by Formula (A) and an oxetane compound, The active ray curable compound exhibiting a viscosity of 1 to 500 mPa&#xb7;s at 25&#xb0; C.: 

Active ray curable composition, active ray curable ink, image forming method and inkjet recording apparatus utilizing the same

An active ray curable ink containing at least two photo-polymerization compounds, one of which is an oxetane compound having a specific formula, and the other is an epoxy compound, having an oxirane ring in the molecule.

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Tokyo, Japan

Kimihiko Ookubo