公开(公告)号：EP0780734B1

公开(公告)日：2001-03-21

申请号：EP96120357.7

申请日：1996-12-18

申请人： FUJI XEROX CO., LTD.

发明人： Takagi, Masahiro ,  Iizuka, Akihiro ,  Ishigaki, Satoru ,  Ichimura, Masanori

IPC分类号： G03G9/097 ,  G03G9/08

CPC分类号： G03G9/0819 ,  G03G9/097 ,  G03G9/107

公开(公告)号：EP0780734A3

公开(公告)日：1997-07-23

申请号：EP96120357.7

申请日：1996-12-18

申请人： FUJI XEROX CO., LTD.

发明人： Takagi, Masahiro ,  Iizuka, Akihiro ,  Ishigaki, Satoru ,  Ichimura, Masanori

IPC分类号： G03G9/097

CPC分类号： G03G9/0819 ,  G03G9/097 ,  G03G9/107

摘要： An electrostatic-image developer which comprises a toner and a carrier comprising core particles coated with a coating resin, wherein the toner comprises toner particles having a volume-average particle diameter of from 3 to 9 µm and having a specific particle diameter distribution, at least 20% of the total surface area of the toner particles is covered with (a) an external additive having an average particle diameter of from 20 nm to 100 nm, and at least 40% of the total surface area of the toner particles is covered with (b) an external additive having an average particle diameter of from 7 nm to 20 nm, and wherein the core particles of the carrier are magnetic particles formed from a composition comprising 100 parts by weight of a ferrite component represented by the following formula (3):
        (M y O) 100-x (Fe 2 O 3 ) x      (3)
(wherein M is a metal atom selected from the group consisting of Li, Mg, Ca and Mn; x is from 45 to 95 mol%; and y is 1 or 2) and from 0.01 to 10 parts by weight of an oxide of at least one element selected from the group consisting of Groups IA, IIA, IIIA, IVA, VA, IIIB, IVB, and VB of the periodic table by granulating the composition and sintering the granules, and the magnetic particles have a silicon content of from 500 to 5,000 ppm. An image forming process using the developer is also disclosed.

摘要翻译： 1.一种静电荷图像显影剂，其包含调色剂和载体，所述载体包含用涂布树脂涂布的芯颗粒，其中所述调色剂包含体积平均粒径为3至9μm且具有特定粒径分布的调色剂颗粒，至少 调色剂颗粒的总表面积的20％被（a）平均粒径为20nm至100nm的外部添加剂覆盖，并且调色剂颗粒的总表面积的至少40％被 （b）平均粒径为7nm至20nm的外部添加剂，并且其中所述载体的核颗粒为由包含100重量份的由下式（3）表示的铁氧体组分形成的磁性颗粒 ）：（MyO）100-x（Fe 2 O 3）x（3）（式中，M为选自Li，Mg，Ca和Mn的金属原子，x为45〜95摩尔％，y为1或 2）和来回 m 0.01-10重量份的选自元素周期表IA，IIA，IIIA，IVA，VA，IIIB，IVB和VB族的至少一种元素的氧化物， ，并且磁性颗粒具有500至5,000ppm的硅含量。 还公开了使用显影剂的图像形成过程。

公开(公告)号：EP0674236B1

公开(公告)日：1999-06-02

申请号：EP95102155.9

申请日：1995-02-16

申请人： FUJI XEROX CO., LTD.

发明人： Ichimura, Masanori ,  Take, Michio ,  Saito, Susumu

IPC分类号： G03G9/097

CPC分类号： G03G9/09725 ,  G03G9/09716

公开(公告)号：EP0780734A2

公开(公告)日：1997-06-25

申请号：EP96120357.7

申请日：1996-12-18

申请人： FUJI XEROX CO., LTD.

发明人： Takagi, Masahiro ,  Iizuka, Akihiro ,  Ishigaki, Satoru ,  Ichimura, Masanori

IPC分类号： G03G9/097

CPC分类号： G03G9/0819 ,  G03G9/097 ,  G03G9/107

摘要： An electrostatic-image developer which comprises a toner and a carrier comprising core particles coated with a coating resin, wherein the toner comprises toner particles having a volume-average particle diameter of from 3 to 9 µm and having a specific particle diameter distribution, at least 20% of the total surface area of the toner particles is covered with (a) an external additive having an average particle diameter of from 20 nm to 100 nm, and at least 40% of the total surface area of the toner particles is covered with (b) an external additive having an average particle diameter of from 7 nm to 20 nm, and wherein the core particles of the carrier are magnetic particles formed from a composition comprising 100 parts by weight of a ferrite component represented by the following formula (3):

        (M y O) 100-x (Fe 2 O 3 ) x      (3)

(wherein M is a metal atom selected from the group consisting of Li, Mg, Ca and Mn; x is from 45 to 95 mol%; and y is 1 or 2) and from 0.01 to 10 parts by weight of an oxide of at least one element selected from the group consisting of Groups IA, IIA, IIIA, IVA, VA, IIIB, IVB, and VB of the periodic table by granulating the composition and sintering the granules, and the magnetic particles have a silicon content of from 500 to 5,000 ppm. An image forming process using the developer is also disclosed.

摘要翻译： 一种静电图像显影剂，其包含调色剂和载体，其包含涂覆有涂料树脂的芯颗粒，其中调色剂包含体积平均粒径为3至9μm并具有特定粒径分布的调色剂颗粒， 调色剂颗粒的总表面积的至少20％用（a）平均粒径为20nm至100nm的外部添加剂覆盖，并且调色剂颗粒的总表面积的至少40％被覆盖 与（b）平均粒径为7nm〜20nm的外用添加剂，其中载体的核心颗粒是由包含100重量份由下式表示的铁氧体组分的组合物形成的磁性颗粒（ 3）：（MyO）100-x（Fe 2 O 3）x（其中M是选自Li，Mg，Ca和Mn的金属原子; x为45至95mol％; y为1或2） 和0.01〜10重量份的氧化物 的选自元素周期表的组IA，IIA，IIIA，IVA，VA，IIIB，IVB和VB中的至少一种元素，通过将组合物制粒并烧结颗粒，并且磁性颗粒的硅含量 从500到5,000 ppm。 还公开了使用显影剂的成像方法。

公开(公告)号：EP0769727A1

公开(公告)日：1997-04-23

申请号：EP96116784.8

申请日：1996-10-18

申请人： FUJI XEROX CO., LTD.

发明人： Ichimura, Masanori ,  Takano, Hiroshi ,  Hashimoto, Masaki ,  Akagi, Hideyuki ,  Furuta, Kazuya ,  Fukushima, Koji

IPC分类号： G03G9/08

CPC分类号： G03G9/0819 ,  G03G9/09 ,  G03G13/013

摘要： The toner for full-color image formation of the invention comprises a binder resin and a colorant, wherein the toner has a volume-average particle diameter of from 3.0 to 9.0 µm and satisfies relationship (1) between the volume-average particle diameter and a colorant content thereof: 11.0/R ≤ C ≤ 21.5/R wherein R is 1/2 of the volume-average particle diameter of the toner (µm) and C is the colorant content of the toner (wt%).
This toner for full-color image formation is used to conduct development in such a manner that the toner amount transferred to the receiving paper satisfies relationship (2): 0.116R ≤ TMA ≤ 0.223R wherein R is 1/2 of the volume-average particle diameter of the toner (µm) and TMA is the weight of the toner (mg/cm 2 ) transferred to the receiving paper in a monochromatic solid part thereof.

摘要翻译： 用于本发明的全色图像形成用调色剂包括粘合剂树脂和着色剂，其中调色剂的体积平均粒径为3.0〜9.0μm，并且满足体积平均粒径与 其着色剂含量：其中R是调色剂的体积平均粒径的1/2（μm），C是调色剂的着色剂含量（wt％）。 用于全色图像形成的这种调色剂用于进行显影，使得转印到接收纸的调色剂量满足关系式（2）：其中R是体积平均粒径的1/2 调色剂（μm）和TMA是在其单色固体部分中转印到接收纸上的调色剂的重量（mg / cm 2）。

公开(公告)号：EP0772092B1

公开(公告)日：2002-02-20

申请号：EP96116783.0

申请日：1996-10-18

申请人： FUJI XEROX CO., LTD.

发明人： Takano, Hiroshi ,  Ichimura, Masanori ,  Hashimoto, Masaki ,  Akagi, Hideyuki ,  Furuta, Kazuya ,  Fukushima, Koji ,  Takagi, Masahiro ,  Togao, Kensaku ,  Ishigaki, Satoru ,  Take, Michio ,  Ishihara, Yuka

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/0819 ,  G03G9/09708

公开(公告)号：EP0769727B1

公开(公告)日：1999-12-15

申请号：EP96116784.8

申请日：1996-10-18

申请人： FUJI XEROX CO., LTD.

发明人： Ichimura, Masanori ,  Takano, Hiroshi ,  Hashimoto, Masaki ,  Akagi, Hideyuki ,  Furuta, Kazuya ,  Fukushima, Koji

IPC分类号： G03G9/08

CPC分类号： G03G9/0819 ,  G03G9/09 ,  G03G13/013

公开(公告)号：EP0772092A1

公开(公告)日：1997-05-07

申请号：EP96116783.0

申请日：1996-10-18

申请人： FUJI XEROX CO., LTD.

发明人： Takano, Hiroshi ,  Ichimura, Masanori ,  Hashimoto, Masaki ,  Akagi, Hideyuki ,  Furuta, Kazuya ,  Fukushima, Koji ,  Takagi, Masahiro ,  Togao, Kensaku ,  Ishigaki, Satoru ,  Take, Michio ,  Ishihara, Yuka

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/0819 ,  G03G9/09708

摘要： A toner for electrostatic-image development which comprises toner particles comprising a colorant and a binder resin, the toner particles having a volume-average particle diameter of from 3 to 9 µm and a particle size distribution satisfying the following expressions (1) and (2): (1) D16(v)/D50(v) ≤ 1.475 - 0.036 × D50(v) (2) D50(p)/D84(p) ≤ 1.45 wherein D16(v) and D50(v) represent, in terms of absolute value, a cumulative 16% diameter (µm) and a cumulative 50% diameter (µm), respectively, of a cumulative volume particle diameter distribution of the toner particles depicted from the larger diameter side, and D50(p) and D84(p) represent, in terms of absolute value, a cumulative 50% diameter (µm) and a cumulative 84% diameter (µm), respectively, of a cumulative population particle diameter distribution of the toner particles depicted from the larger diameter side.

摘要翻译： 一种用于静电荷图像显影用调色剂包含含有着色剂和粘合剂树脂，具有3至9微米的体积平均粒径，并满足下列表达式（1）和颗粒尺寸分布的调色剂颗粒（调色剂颗粒 2）：$$ $ worin\; D16（v）和D50（v）中的值项表示绝对的，累积16％粒径（微米）和累积50％径（微米）\; 分别从大直径侧所示的调色剂颗粒的累积体积粒径分布，和D50（p）和D84的（p）表示，绝对在价值方面，累积50％粒径（微米）和累积\; 84％粒径（微米），分别从所述大直径侧所示的调色剂颗粒的累积人口粒径分布的。$$$

公开(公告)号：EP0674236A1

公开(公告)日：1995-09-27

申请号：EP95102155.9

申请日：1995-02-16

申请人： FUJI XEROX CO., LTD.

发明人： Ichimura, Masanori ,  Take, Michio ,  Saito, Susumu

IPC分类号： G03G9/097

CPC分类号： G03G9/09725 ,  G03G9/09716

摘要： A toner composition for electrophotography comprising toner particles comprising a binder and a colorant and an additive, wherein the additive is crystalline titanium dioxide fine particles which have been treated with a coupling agent and which have a specific surface area of 60 to 100 m²/g and a Karl Fischer moisture content of not more than 5% by weight. Compounds represented by formulae (I), (II) or (III) are used as the coupling agent:



        R¹Si(X)₃   (I)





        R 1' R²Si(X)₂   (II)





        R 1' R²R³SiX   (III)



wherein R¹ represents an alkyl group having 9 to 20 carbon atoms; R 1' represents an alkyl group having 1 to 20 carbon atoms; R² and R³ each represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 30 carbon atoms; and X represents a chlorine atom, an alkoxy group having 1 to 10 carbon atoms or an acetoxy group having 3 to 5 carbon atoms.

摘要翻译： 一种电子照相用调色剂组合物，其含有包含粘合剂和着色剂以及添加剂的调色剂粒子，其中，添加剂是用偶联剂处理过的结晶二氧化钛微粒，其比表面积为60〜100m 2 / g， 卡尔费休含水量不超过5重量％。 用式（Ⅰ），（Ⅱ）或（Ⅲ）表示的化合物作为偶联剂：R 1 Si（X）3（Ⅰ）R 1'R 2 Si（X）2（Ⅱ）R 1'R 2 R 3 SiX 具有9-20个碳原子的烷基; R1'表示具有1至20个碳原子的烷基; R 2和R 3各自代表氢原子，具有1至20个碳原子的烷基或具有6至30个碳原子的芳基; X表示氯原子，碳原子数1〜10的烷氧基或碳原子数3〜5的乙酰氧基。