公开(公告)号：US5750303A

公开(公告)日：1998-05-12

申请号：US841337

申请日：1997-04-30

申请人： Kohji Inaba ,  Kazunori Kato ,  Kengo Hayase

发明人： Kohji Inaba ,  Kazunori Kato ,  Kengo Hayase

IPC分类号： G03G9/087 ,  G03G9/093 ,  G03G9/097

CPC分类号： G03G9/08755 ,  G03G9/08782 ,  G03G9/08791 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09328

摘要： A toner for developing an electrostatic image includes toner particles constituted by at least a binder resin, a colorant, a polar resin and a release agent. The polar resin has at least one terminal group which has been modified by a polycarbonate acid having at least three carboxyl groups. The polar resin has an acid value of 3-35 mgKOH/g. The polar resin may preferably be a polyester resin having an acid value of 4-35 mgKOH/g and having a number-average molecular weight (Mn) of 3,000-15,000, a weight-average molecular weight (Mw) of 6,000-50,000, and an Mw/Mn of 1.2-3.0 based on GPC. The polar resin (preferably polyester resin) having modified by a polycarboxylic acid having at least three carboxylic groups to provide a specific acid value is effective in improving resultant toner performances, such as low-temperature fixability, anti-offset characteristic at high temperatures, triboelectric chargeability, and flowability.

摘要翻译： 用于显影静电图像的调色剂包括由至少粘合剂树脂，着色剂，极性树脂和脱模剂构成的调色剂颗粒。 极性树脂具有至少一个末端基团，其被具有至少三个羧基的聚碳酸酯改性。 极性树脂的酸值为3-35mgKOH / g。 极性树脂可以优选为酸值为4-35mgKOH / g，数均分子量（Mn）为3,000-15,000，重均分子量（Mw）为6,000-50,000的聚酯树脂， 和基于GPC的Mw / Mn为1.2-3.0。 通过具有至少三个羧基的多元羧酸改性以提供特定酸值的极性树脂（优选聚酯树脂）在改善所得调色剂性能方面是有效的，例如低温定影性，高温下的抗偏移特性，摩擦电 充电性和流动性。

公开(公告)号：US5712072A

公开(公告)日：1998-01-27

申请号：US605737

申请日：1996-02-22

申请人： Kohji Inaba ,  Tatsuya Nakamura ,  Tatsuhiko Chiba ,  Kengo Hayase

发明人： Kohji Inaba ,  Tatsuya Nakamura ,  Tatsuhiko Chiba ,  Kengo Hayase

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/093

CPC分类号： G03G9/08742 ,  G03G9/0806 ,  G03G9/08782 ,  G03G9/09321 ,  G03G9/09378 ,  G03G9/09392

摘要： The present invention relates to a toner for developing an electrostatic image, comprising toner particles containing a binding resin composed of a styrene homopolymer or copolymer, a coloring agent, a polar resin, and a specified solid ester wax.

摘要翻译： 本发明涉及一种用于显影静电图像的调色剂，包括含有由苯乙烯均聚物或共聚物，着色剂，极性树脂和特定固体酯蜡组成的粘合树脂的调色剂颗粒。

公开(公告)号：US5635325A

公开(公告)日：1997-06-03

申请号：US452344

申请日：1995-05-26

申请人： Kohji Inaba ,  Tatsuya Nakamura ,  Tatsuhiko Chiba ,  Takao Ishiyama ,  Kengo Hayase

发明人： Kohji Inaba ,  Tatsuya Nakamura ,  Tatsuhiko Chiba ,  Takao Ishiyama ,  Kengo Hayase

IPC分类号： G03G9/087 ,  G03G9/097 ,  G03G13/16

CPC分类号： G03G9/08782 ,  G03G9/09733

摘要： A toner for developing electrostatic images includes: at least a binder resin, a colorant and an ester wax. The ester wax is contained in 3-40 wt. parts per 100 wt. parts of the binder resin. The ester wax includes ester compounds represented by a formula ofR.sub.1 --COO--R.sub.2,wherein R.sub.1 an R.sub.2 independently denote a hydrocarbon group of 15-45 carbon atoms. The ester wax contains 50-95 wt. % thereof of ester compounds having an identical number of total carbon atoms. The toner is especially characterized by low-temperature fixability, wide non-offset temperature range, good color mixing characteristic and transparency.

摘要翻译： 用于显影静电图像的调色剂包括：至少粘合剂树脂，着色剂和酯蜡。 酯蜡包含在3-40wt。 每100重量份 部分粘合剂树脂。 酯蜡包括由式R 1 -COO-R 2表示的酯化合物，其中R 1，R 2独立地表示15-45个碳原子的烃基。 酯蜡含有50-95wt。 ％的具有相同数目的总碳原子的酯化合物。 该调色剂的特征在于低温定影性，非偏移温度范围宽，色彩混合特性和透明度。

公开(公告)号：US5753399A

公开(公告)日：1998-05-19

申请号：US647727

申请日：1996-05-15

申请人： Kengo Hayase ,  Tatsuya Nakamura ,  Tatsuhiko Chiba

发明人： Kengo Hayase ,  Tatsuya Nakamura ,  Tatsuhiko Chiba

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/08782 ,  G03G9/081 ,  G03G9/0821 ,  G03G9/08711 ,  G03G9/08755

摘要： A toner for developing an electrostatic image includes: 100 wt. parts of a binder resin, 1-150 wt. parts of a colorant and a relatively large amount of 5-40 wt. parts of a low-softening point substance. The toner is further characterized by viscoelastic properties including: a storage modulus at 60.degree. C. (G'.sub.60) and a storage modulus at 80.degree. C. (G'.sub.80) providing a ratio (G'.sub.60 /G'.sub.80) of at least 80, and a storage modulus at 155.degree. C. (G'.sub.155) and a storage modulus at 190.degree. C. (G'.sub.190) providing a ratio (G'.sub.155 /G'.sub.190) of 0.95-5. As a result, the toner shows good low-temperature fixability and anti-offset characteristic, and also little temperature-dependence of gloss.

摘要翻译： 用于显影静电图像的调色剂包括：100重量％ 粘合剂树脂的一部分，1-150wt。 着色剂的一部分和相对大量的5-40wt。 部分低软化点物质。 调色剂的特征还在于粘弹性，其特征包括：60℃下的储能模量（G'60）和80℃下的储能模量（G'80），提供（G'60 / G'80） 至少80，在155℃下的储能模量（G'155）和190℃下的储能模量（G'190），其比例（G'155 / G'190）为0.95-5。 结果，调色剂具有良好的低温定影性和抗污损特性，并且光泽度的温度依赖性也很小。

公开(公告)号：US5753396A

公开(公告)日：1998-05-19

申请号：US563603

申请日：1995-11-28

申请人： Tatsuya Nakamura ,  Masayoshi Kato ,  Shuichi Aita ,  Koji Inaba ,  Kengo Hayase ,  Yuki Nishio

发明人： Tatsuya Nakamura ,  Masayoshi Kato ,  Shuichi Aita ,  Koji Inaba ,  Kengo Hayase ,  Yuki Nishio

IPC分类号： G03G5/04 ,  G03G9/08 ,  G03G9/097 ,  G03G21/00 ,  G03G13/06

CPC分类号： G03G5/04 ,  G03G21/0064 ,  G03G9/0827 ,  G03G9/09733 ,  G03G2221/0005

摘要： An image forming method comprising; a charging step of electrostatically charging a photosensitive member; an exposure step of exposing the charged photosensitive member to form an electrostatic latent image; a developing step of bringing a toner carried on a developer carrying member, into contact with the surface of the photosensitive member to develop the electrostatic latent image to form a toner image on the photosensitive member; a transfer step of transferring the toner image formed on the photosensitive member, to a transfer medium; and a cleaning-at-development step of collecting the toner remaining on the photosensitive member after the transfer step, onto the developer carrying member; a wherein; the surface of said photosensitive member has a contact angle with water of 85.degree. or greater; said toner contains residual monomers in an amount not more than 1,000 ppm; and said toner has a shape factor SF-1 of from 100 to 180 and a shape factor SF-2 of from 100 to 140.

摘要翻译： 一种图像形成方法，包括： 对感光构件静电充电的充电步骤; 曝光步骤，使所充电的感光件曝光以形成静电潜像; 显影步骤，使承载在显影剂承载构件上的调色剂与感光构件的表面接触，以显影静电潜像，以在感光构件上形成调色剂图像; 将形成在感光构件上的调色剂图像转印到转印介质的转印步骤; 以及在显影剂承载构件上收集在转印步骤之后残留在感光构件上的调色剂的清洗显影步骤; 其中; 所述感光构件的表面与水的接触角为85°或更大; 所述调色剂含有不超过1,000ppm的残留单体; 并且所述调色剂具有100至180的形状系数SF-1和100至140的形状系数SF-2。

公开(公告)号：US06002903A

公开(公告)日：1999-12-14

申请号：US6900

申请日：1998-01-14

申请人： Kengo Hayase ,  Tatsuya Nakamura ,  Tatsuhiko Chiba

发明人： Kengo Hayase ,  Tatsuya Nakamura ,  Tatsuhiko Chiba

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G15/08 ,  G03G15/16

CPC分类号： G03G9/08782 ,  G03G9/081 ,  G03G9/0821

摘要： An apparatus unit includes a detachably mounted unit having a developing sleeve, a toner and a toner applicator, all of which are enclosed by an outer casing. The toner has a shape factor SF-1 of 100-150 and is formed of 100 parts binder, 1-20 parts of a non-magnetic color and 5-40 parts wax and has a specific storage modulus ratio (a) at 60.degree. C. and 80.degree. C. and (b) at 155.degree. C. and 190.degree. C., of at least 80 for (a) and of 0.95-5 for (b). Toner images are visualized by forming an electrostatic image, developing the electrostatic image with the toner, transferring the toner image to a transfer material and fixing the toner image by heat and pressure.

摘要翻译： 装置单元包括具有显影套筒，调色剂和调色剂涂布器的可拆卸地安装的单元，所有这些都由外壳包围。 调色剂具有100-150的形状因子SF-1，由100份粘合剂，1-20份非磁性颜色和5-40份蜡形成，并且在60℃下具有比储能模量比（a） （C）和80℃，（b）在155℃和190℃下（a）为至少80，（b）为0.95-5。 通过形成静电图像，用调色剂显影静电图像，将调色剂图像转印到转印材料上并通过加热和压力固定调色剂图像来显现调色剂图像。