公开(公告)号：US06203958B1

公开(公告)日：2001-03-20

申请号：US09519473

申请日：2000-03-06

申请人： Yasuhiro Oya ,  Susumu Yoshino ,  Masanobu Ninomiya ,  Hirokazu Hamano ,  Kaori Oishi ,  Tetsuya Taguchi ,  Koutarou Yoshihara

发明人： Yasuhiro Oya ,  Susumu Yoshino ,  Masanobu Ninomiya ,  Hirokazu Hamano ,  Kaori Oishi ,  Tetsuya Taguchi ,  Koutarou Yoshihara

IPC分类号： G03G9097

CPC分类号： G03G9/08782 ,  G03G9/08795

摘要： Provided is a toner having good offset resistance and capable of giving non-glaring, high-quality images with high OHP transparency, and a method of image formation with it. The toner includes at least a binder resin, a colorant and a wax. The THF soluble component of the toner, as analyzed through gel permeation chromatography, has a number-average molecular weight falling between 2500 and 5500, a weight-average molecular weight falling between 13000 and 25000, and a peak molecular weight falling between 5000 and 15000, and contains a fraction having a molecular weight of at least 105 in a ratio of at most 10% by weight of the component and a fraction having a molecular weight of at least 104 in a ratio of from 30 to 70% by weight of the component, and the wax in the toner has a DSC endothermic peak falling between 50 and 120° C.

摘要翻译： 提供了具有良好抗偏移性并且能够提供具有高OHP透明度的非眩光，高质量图像的调色剂以及与其形成图像的方法。 调色剂至少包括粘合剂树脂，着色剂和蜡。 通过凝胶渗透色谱法分析的调色剂的THF可溶成分的数均分子量为2500〜5500，重均分子量在13000〜25000之间，峰分子量为5000〜15000 ，并且包含分子量至少为105的级分，其比例为组分重量的至多10％，分子量为至少为104的分数为30至70重量％ 组分，并且调色剂中的蜡具有落在50和120℃之间的DSC吸热峰。

公开(公告)号：US06187489B1

公开(公告)日：2001-02-13

申请号：US09514635

申请日：2000-02-29

申请人： Kaori Oishi ,  Susumu Yoshino ,  Yasuhiro Oya ,  Hirokazu Hamano ,  Masanobu Ninomiya ,  Tetsuya Taguchi ,  Koutarou Yoshihara

发明人： Kaori Oishi ,  Susumu Yoshino ,  Yasuhiro Oya ,  Hirokazu Hamano ,  Masanobu Ninomiya ,  Tetsuya Taguchi ,  Koutarou Yoshihara

IPC分类号： G03G1301

CPC分类号： G03G9/09725 ,  G03G9/08782 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09733 ,  G03G13/013

摘要： A full-color latent image developing toner composed of toner particles containing a binder resin, a coloring agent, and a surface lubricant, and at least one kind of an external additive, wherein the toner contains at least about 3% the surface lubricant, the toner includes irregular-shaped particles of ML2/A≧125, and when the emission voltage caused by the carbon originated in the binder resin of the toner particles is X and the emission voltage caused by the element originated in the external additive is Y, and when the relationship between X(⅔) and Y are primary-regressed to the straight line passing through origin of a coordinate, the correlation factor of the element originated in at least one external additive is not less than 0.4. As the external additive, a titanium compound obtained by reacting TiO(OH)2 prepared by a wet method and a silane compound is preferably used.

摘要翻译： 由包含粘合剂树脂，着色剂和表面润滑剂的调色剂颗粒构成的全色潜像显影调色剂和至少一种外部添加剂，其中调色剂含有至少约3％的表面润滑剂， 调色剂包括ML2 / A> = 125的不规则形状的颗粒，并且当由起源于调色剂颗粒的粘合剂树脂中的碳引起的发射电压为X，并且由外部添加剂产生的元素引起的发射电压为Y时， 并且当X（⅔）和Y之间的关系被初级回归到通过坐标原点的直线时，起源于至少一种外部添加剂的元素的相关系数不小于0.4。 作为外部添加剂，优选使用通过湿法制备的TiO（OH）2和硅烷化合物而得到的钛化合物。

公开(公告)号：US6132915A

公开(公告)日：2000-10-17

申请号：US451515

申请日：1999-11-30

申请人： Susumu Yoshino ,  Yasuhiro Oya ,  Masanobu Ninomiya ,  Hirokazu Hamano ,  Koutarou Yoshihara ,  Kaori Oishi ,  Tetsuya Taguchi ,  Haruhide Ishida

发明人： Susumu Yoshino ,  Yasuhiro Oya ,  Masanobu Ninomiya ,  Hirokazu Hamano ,  Koutarou Yoshihara ,  Kaori Oishi ,  Tetsuya Taguchi ,  Haruhide Ishida

IPC分类号： G03G13/08 ,  G03G9/087 ,  G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0928 ,  G03G15/0818 ,  G03G9/08782

摘要： Provided is an image-forming process including a step of forming an electrostatic latent image on a latent image-carrier and a step of developing the latent image by a developer on a developer-carrier disposed facing the electrostatic latent image-carrier, a developer contains a color toner containing a wax which amount is from 1 to 10% by weight of the toner is used, and the developer-carrier wherein a ten-point average roughness (Rz) of the surface thereof of and the average spacing (Sm) of roughness peaks meet the following formula is used; 5.ltoreq.Rz.times.20.ltoreq.Sm. By the process, the conveying property of the developer is good, staining of the surface of the developer-carrier can be prevented, and images having a high quality and excellent in the fixing property over a long period time is obtained even in the case of using oil-less color toners containing a wax.

摘要翻译： 提供了一种图像形成方法，其包括在潜像载体上形成静电潜像的步骤，以及通过显影剂在与静电潜像载体相对设置的显影剂载体上显影潜像的步骤，显影剂包含 使用含有调色剂重量的1〜10重量％的蜡的彩色调色剂，其表面的十点平均粗糙度（Rz）和平均间隔（Sm）的显影剂载体 粗糙度峰值满足下列公式使用; 5

公开(公告)号：US06242146B1

公开(公告)日：2001-06-05

申请号：US09499454

申请日：2000-02-07

申请人： Yuka Ishihara ,  Hiroshi Nakazawa ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Kaori Oishi ,  Tomohito Nakajima ,  Takashi Imai ,  Masanori Ichimura

发明人： Yuka Ishihara ,  Hiroshi Nakazawa ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Kaori Oishi ,  Tomohito Nakajima ,  Takashi Imai ,  Masanori Ichimura

IPC分类号： G03G9113

CPC分类号： G03G9/10

摘要： A carrier for two-component electrostatic-charged image developer, at least the surface of which is coated with a resin, is provided. The apparent density &rgr; (g/cm3) of the carrier, the mean particle diameter D (cm) of the carrier, and the specific area S (cm2/g) of the carrier core material satisfy the following conditions: 600≦S≦1500 10/(D×&rgr;)−S≦300. A two-component developer and an image-forming process using the carrier are also provided.

摘要翻译： 提供了至少其表面涂覆有树脂的双组分静电电荷显影剂载体。 载体的表观密度rho（g / cm 3），载体的平均粒径D（cm）和载体芯材的比表面积S（cm 2 / g）满足以下条件：双组分显影剂 并且还提供使用该载体的图像形成处理。