公开(公告)号：EP0737899A4

公开(公告)日：1997-07-23

申请号：EP95902993

申请日：1994-12-19

Applicant: KAO CORP

Inventor： MARUTA MASAYUKI ,  SHIMIZU JUN ,  SATA SHINICHI ,  HIDAKA YASUHIRO

IPC: G03G9/08 ,  G03G9/087 ,  G03G13/08

CPC classification number: G03G9/0825 ,  G03G9/08 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08704 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08728 ,  G03G9/08737 ,  G03G9/08791 ,  G03G9/08797 ,  G03G13/08

Abstract: An electrophotographic toner comprising a binder resin, a colorant and a reinforcement, wherein the reinforcement comprises a resin particle prepared by coating a core layer comprising an acrylate copolymer and/or a methacrylate copolymer having a glass transition temperature of 0 DEG C or below or a diene copolymer having a glass transition temperature of 0 DEG C or below with a vinyl polymer having a glass transition temperature of 50 DEG C or above; a toner reinforcement comprising the resin particle; and an image forming method of nonmagnetic one-component development type using a blade which applies electric charges while controlling the thickness of the developing roll and that of the toner layer formed on the roll, which method is characterized by the use of the above electrophotographic toner.

Abstract translation: 一种用于电子照相的调色剂，包括粘合剂树脂，着色剂和增强剂，该调色剂的特征在于，增强剂是包含涂覆有玻璃化转变温度为50℃或更高的乙烯基聚合物的芯层的树脂颗粒， 所述芯层包含玻璃化转变温度为0℃以下的丙烯酸酯共聚物和/或甲基丙烯酸酯共聚物，或玻璃化转变温度为0℃以下的二烯共聚物; 包含上述树脂颗粒的调色剂增强剂; 并且通过利用使用包括显影辊和刮板的显影剂装置的非磁性单组分显影方法形成固定图像的方法，所述刮板用于调节形成在显影辊上的调色剂层的厚度并提供电荷 对于调色剂，形成固定图像的方法的特征在于使用上述用于电子照相的调色剂。

公开(公告)号：EP3236317A4

公开(公告)日：2018-06-27

申请号：EP15869745

申请日：2015-11-25

Applicant: KAO CORP

Inventor： WATANABE SHOGO ,  KATAYAMA KOHEI ,  HIDAKA YASUHIRO ,  KAKIUCHI HIROKI

IPC: G03G9/087

CPC classification number: G03G9/08755 ,  G03G9/08706 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08795 ,  G03G9/08797

Abstract: A toner for electrophotography containing a resin binder containing a crystalline resin and an amorphous resin, and a releasing agent, wherein the crystalline resin contains a crystalline composite resin C containing a polycondensation resin component and a styrenic resin component, wherein the polycondensation resin component is obtained by polycondensing a specified alcohol component and a specified carboxylic acid component, and wherein the amorphous resin contains an amorphous composite resin AC containing a polycondensation resin component and a styrenic resin component, wherein the polycondensation resin component is obtained by polycondensing an alcohol component and a specified carboxylic acid component, and an amorphous polyester AP obtained by polycondensing an alcohol component and a specified carboxylic acid component, wherein a softening point of the amorphous polyester AP is higher than a softening point of the amorphous composite resin AC, wherein a difference in softening points between the amorphous polyester AP and the amorphous composite resin AC is 10°C or more and 50°C or less. The toner for electrophotography of the present invention is suitably used in development of latent images or the like which is formed in, for example, electrostatic development method, electrostatic recording method, electrostatic printing method or the like.

公开(公告)号：DE602004018566D1

公开(公告)日：2009-02-05

申请号：DE602004018566

申请日：2004-06-01

Applicant: KAO CORP

Inventor： HIDAKA YASUHIRO ,  TAJIMA HISAKAZU

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/097

Abstract: A toner comprises a resin binder containing a polyester, a colorant and a releasing agent comprising an ester wax and a petroleum wax. An independent claim is included for preparing a toner for electrostatic image development involving melt-kneading raw materials with an open-roll type kneader.

公开(公告)号：DE69419855T2

公开(公告)日：2000-04-13

申请号：DE69419855

申请日：1994-09-01

Applicant: KAO CORP

Inventor： SATA SHIN-ICHI ,  HIDAKA YASUHIRO ,  AOKI KATSUTOSHI ,  KAWAJI HIROYUKI ,  MARUTA MASAYUKI

IPC: G03G9/087 ,  G03G9/097 ,  G03G5/05

公开(公告)号：DE69419855D1

公开(公告)日：1999-09-09

申请号：DE69419855

申请日：1994-09-01

Applicant: KAO CORP

Inventor： SATA SHIN-ICHI ,  HIDAKA YASUHIRO ,  AOKI KATSUTOSHI ,  KAWAJI HIROYUKI ,  MARUTA MASAYUKI

IPC: G03G9/087 ,  G03G9/097 ,  G03G5/05

公开(公告)号：DE102005041596A1

公开(公告)日：2006-03-09

申请号：DE102005041596

申请日：2005-09-01

Applicant: KAO CORP

Inventor： HIDAKA YASUHIRO

IPC: G03G9/08 ,  G03G15/00 ,  G03G15/01

Abstract: A toner for electrostatic image development, containing a resin binder comprising a polyester having a softening point of from 125° to 160° C.; a releasing agent containing a paraffin wax having a melting point of from 70° to 90° C. and a penetration at 25° C. of from 4 to 10, wherein the n(normal)-paraffin is contained in an amount of 82 to 92% by weight of the paraffin wax; and a colorant. The toner for electrostatic image development of the present invention can be used, for example in electrophotography, electrostatic recording method, electrostatic printing method or the like.

公开(公告)号：DE102004046851A1

公开(公告)日：2005-06-23

申请号：DE102004046851

申请日：2004-09-27

Applicant: KAO CORP

Inventor： SHIMOKUSA KOJI ,  SATA SHINICHI ,  HIDAKA YASUHIRO

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097

Abstract: A toner for electrostatic image development, comprising a resin binder comprising a crystalline polyester; a releasing agent comprising a wax having a melting point of from 60 to 85° C. and a penetration at 25° C. of from 4 to 10; and a colorant. The toner for electrostatic image development can be used, for instance, for the development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method or the like.

公开(公告)号：DE102005041596B4

公开(公告)日：2022-09-15

申请号：DE102005041596

申请日：2005-09-01

Applicant: KAO CORP

Inventor： HIDAKA YASUHIRO

IPC: G03G9/08 ,  G03G9/087 ,  G03G13/20

Abstract: Toner für die elektrostatische Bildentwicklung, umfassend:ein Harzbindemittel, umfassend einen Polyester mit einem Erweichungspunkt von 125 bis 160°C, wobei das Harzbindemittel keinen kristallinen Polyester umfasst;ein Trennmittel, welches ein Paraffinwachs mit einem Schmelzpunkt von 70 bis 90°C und einer Penetration bei 25°C von 4 bis 10 enthält, wobei n-(Normal-)Paraffin in einer Menge von 82 bis 92 Gew.-% des Paraffinwachses enthalten ist; undeinen farbgebenden Stoff.

公开(公告)号：DE112007002460T5

公开(公告)日：2009-11-12

申请号：DE112007002460

申请日：2007-10-16

Applicant: KAO CORP

Inventor： HIDAKA YASUHIRO ,  KATAYAMA KOUHEI ,  OHTAWA YASUKI

IPC: G03G9/087 ,  G03G9/097

Abstract: A toner for electrophotography comprising a charge control agent comprising a specified iron-azo complex or a specified metal compound of a benzilic acid derivative, a colorant, and a resin binder comprising a polyester, the polyester being a polyester obtained by polycondensing an alcohol component containing a propylene oxide adduct of bisphenol A and a carboxylic acid component, wherein the propylene oxide adduct of bisphenol A has an average mole of propylene oxide added of from 2.4 to 4.0, and wherein an adduct with 2 mol of propylene oxide is contained in an amount of 60% by mol or less, and an adduct with 4 mol of propylene oxide is contained in an amount of 10% by mol or more, of the propylene oxide adduct of bisphenol A, and wherein the propylene oxide adduct of bisphenol A has a content ratio of primary hydroxyl groups of 10% by mol or less of the entire hydroxyl groups. The toner for electrophotography of the present invention is suitably used in developing latent images and the like formed in electrophotography, electrostatic recording method, electrostatic printing method or the like.

公开(公告)号：DE69431198T2

公开(公告)日：2003-05-08

申请号：DE69431198

申请日：1994-05-11

Applicant: KAO CORP

Inventor： MARUTA MASAYUKI ,  SATA SHIN-ICHI ,  HIDAKA YASUHIRO

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/097

Abstract: A nonmagnetic one-component toner is produced by the steps of applying inorganic fine particles having an average particle diameter of not less than 30 nm and less than 100 nm to the surface of the toner having a binder resin and a colorant; and removing agglomerations of the inorganic fine particles remaining unadhered on the toner surface using a cyclone in a gas stream. The inorganic fine particles used in the present invention have a particle diameter in suitable ranges, so that the resulting toner can have suitable powder fluidity, and that these inorganic fine particles are less likely to be embedded into the inner portion of the toner by the nip pressure exerted by such members as the charging blade. Therefore, by using the toner of the present invention, a nonmagnetic one-component developing system with small variations in image density and image quality after continuous copying can be provided.