公开(公告)号：US5948582A

公开(公告)日：1999-09-07

申请号：US50464

申请日：1998-03-31

申请人： Tatsuya Nakamura ,  Shinya Yachi ,  Michihisa Magome

发明人： Tatsuya Nakamura ,  Shinya Yachi ,  Michihisa Magome

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

CPC分类号： G03G9/09725 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/09708 ,  G03G9/08782

摘要： A toner for developing an electrostatic image is constituted by at least toner particles and an additive. The toner particles have a shape factor SF-1 of 100-160, a phase factor SF-2 of 100-140 and a weight-average particle size of 4-10 .mu.m as measured by a Coulter counter. The toner contains particles having circle-equivalent diameters in a range of 0.6-2.0 .mu.m and satisfying the following conditions (i)-(iii): (i) a first value C.sub.1 of 3-50% by number as measured by a flow particle image analyzer after application of a ultrasonic wave of 20 kHz for 5 min., (ii) a second value C.sub.2 of 2-40% by number as measured by the flow particle image analyzer after application of a ultrasonic wave of 20 kHz for 1 min., and (iii) a value C of 105-150 obtained according to the following equation: C=(C.sub.1 /C.sub.2).times.100 The toner is effective in improving image-forming characteristics in a continuous image formation on a large number of sheets.

摘要翻译： 用于显影静电图像的调色剂至少由调色剂颗粒和添加剂构成。 调色剂颗粒具有100-160的形状因子SF-1，100-140的相位因子SF-2和通过Coulter计数器测量的重均粒径为4-10μm。 调色剂含有圆度当量直径在0.6-2.0μm范围内且满足以下条件（i） - （iii）的颗粒：（i）通过流动测量的3-50数量级的第一值C1 20分钟的超声波施加5分钟后的粒子图像分析仪，（ii）在20kHz的超声波施加1以后，由流动粒子图像分析仪测定的第二值为2-40数量的C2 min，和（iii）根据以下等式获得的值为105-150的值C =（C1 / C2）×100调色剂有效地改善了在大量片材上的连续成像中的图像形成特性 。

公开(公告)号：US5863697A

公开(公告)日：1999-01-26

申请号：US53710

申请日：1998-04-02

申请人： Masaki Uchiyama ,  Tatsuya Nakamura ,  Shinya Yachi

发明人： Masaki Uchiyama ,  Tatsuya Nakamura ,  Shinya Yachi

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

CPC分类号： G03G9/0806 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/08782 ,  G03G9/093 ,  G03G9/09364 ,  G03G9/09371 ,  G03G9/09392

摘要： A toner for developing an electrostatic image has toner particles containing a binder resin and a colorant. The toner particle has at least a core composed of a low-temperature softening substance, an inner layer enclosing the core, and an outer layer enclosing the core and the inner layer. The core, the inner layer, and the outer layer are constituted respectively of a material which is discriminable by staining with triruthenium tetroxide and triosmium tetroxide.

摘要翻译： 用于显影静电图像的调色剂具有含有粘合剂树脂和着色剂的调色剂颗粒。 调色剂颗粒至少具有由低温软化物质构成的芯，包围芯的内层和包围芯和内层的外层。 核心，内层和外层分别由可以通过用四氧化钌和四氧化锇染色来区分的材料构成。

公开(公告)号：US5773185A

公开(公告)日：1998-06-30

申请号：US911751

申请日：1997-08-15

申请人： Shinya Yachi ,  Koji Inaba ,  Kazunori Kato

发明人： Shinya Yachi ,  Koji Inaba ,  Kazunori Kato

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G9/093

CPC分类号： G03G9/08706 ,  G03G9/0806 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08795

摘要： A toner which comprises toner particles containing a binder resin, a colorant, a polar resin and a release agent, wherein the binder resin is a styrene polymer, a styrene copolymer, or a mixture of these, and has a weight average molecular weight Mw.sub.1 of from 10,000 to 1,000,000, the polar resin is a polyester resin containing a tetrahydrofuran-soluble matter of which weight average molecular weight Mw.sub.2 is from 7,000 to 50,000 and an ethyl alcohol-soluble matter of which weight average molecular weight Mw.sub.3 is from 1,000 to 7,000, where Mw.sub.2 /Mw.sub.3 is from 1.2 to 10.

摘要翻译： 一种调色剂，其包含含有粘合剂树脂，着色剂，极性树脂和脱模剂的调色剂颗粒，其中粘合剂树脂是苯乙烯聚合物，苯乙烯共聚物或它们的混合物，并且其重均分子量Mw1为 10,000至1,000,000，极性树脂是含有重均分子量Mw2为7000至50,000的四氢呋喃可溶物质和重均分子量Mw3为1,000至7000的乙醇可溶物质的聚酯树脂， 其中Mw2 / Mw3为1.2〜10。

公开(公告)号：US5679490A

公开(公告)日：1997-10-21

申请号：US655605

申请日：1996-05-30

申请人： Shinya Yachi ,  Koji Inaba ,  Kazunori Kato

发明人： Shinya Yachi ,  Koji Inaba ,  Kazunori Kato

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G9/093

CPC分类号： G03G9/08706 ,  G03G9/0806 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08795

摘要： A toner which comprises toner particles containing a binder resin, a colorant, a polar resin and a release agent, wherein the binder resin is a styrene polymer, a styrene copolymer, or a mixture of these, and has a weight average molecular weight Mw.sub.1 of from 10,000 to 1,000,000, the polar resin is a polyester resin containing a tetrahydrofuran-soluble matter of which weight average molecular weight Mw.sub.2 is from 7,000 to 50,000 and an ethyl alcohol-soluble matter of which weight average molecular weight Mw.sub.3 is from 1,000 to 7,000, where Mw.sub.2 /Mw.sub.3 is from 1.2 to 10.

摘要翻译： 一种调色剂，其包含含有粘合剂树脂，着色剂，极性树脂和脱模剂的调色剂颗粒，其中粘合剂树脂是苯乙烯聚合物，苯乙烯共聚物或它们的混合物，并且其重均分子量Mw1为 10,000至1,000,000，极性树脂是含有重均分子量Mw2为7000至50,000的四氢呋喃可溶物质和重均分子量Mw3为1,000至7000的乙醇可溶物质的聚酯树脂， 其中Mw2 / Mw3为1.2〜10。