公开(公告)号：US20110311910A1

公开(公告)日：2011-12-22

申请号：US13159172

申请日：2011-06-13

申请人： Takashi Matsui ,  Michihisa Magome ,  Yusuke Hasegawa ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura ,  Atsuhiko Ohmori

发明人： Takashi Matsui ,  Michihisa Magome ,  Yusuke Hasegawa ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura ,  Atsuhiko Ohmori

IPC分类号： G03G9/087 ,  G03G9/08

CPC分类号： G03G9/0827 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09328

摘要： To provide a toner which can achieve both low-temperature fixing performance and dot reproducibility and further can obtain images on which any density non-uniformity has been kept from coming about, the toner has toner particles, each of the toner particles has a toner base particle containing a binder resin, a colorant and a release agent, and an inorganic fine powder; the toner having: (1) an average circularity of 0.960 or more; (2) a number-average molecular weight Mn(25° C.) of from 500 or more to 3,000 or less in measuring a tetrahydrofuran-soluble matter at 25° C. of the toner by SEC-MALLS; and (3) a value of Mn(135° C.)/Mn(25° C.) of from 25 or more to 50 or less which is the ratio of number-average molecular weight Mn(135° C.) in measuring an o-dichlorobenzene-soluble matter at 135° C. of the toner by SEC-MALLS to number-average molecular weight Mn(25° C.) in measuring a tetrahydrofuran-soluble matter at 25° C. of the toner by SEC-MALLS.

摘要翻译： 为了提供能够实现低温定影性能和点再现性的调色剂，并且还可以获得不会发生任何密度不均匀的图像，调色剂具有调色剂颗粒，每个调色剂颗粒具有调色剂基底 含有粘合剂树脂的颗粒，着色剂和脱模剂，以及无机细粉末; 调色剂具有：（1）平均圆形度为0.960以上; （2）通过SEC-MALLS测定调色剂的25℃下的四氢呋喃可溶物质中的数均分子量Mn（25℃）为500以上至3000以下; 和（3）在测量中数均分子量Mn（135℃）的比例为25以上至50以下的Mn（135℃）/ Mn（25℃）的值 通过SEC-MALLS将调色剂在135℃下的邻二氯苯可溶物质通过SEC-MALLS调节至数均分子量Mn（25℃），测量调色剂在25℃下的四氢呋喃可溶物质， 马尔斯

公开(公告)号：US08614044B2

公开(公告)日：2013-12-24

申请号：US13159172

申请日：2011-06-13

申请人： Takashi Matsui ,  Michihisa Magome ,  Yusuke Hasegawa ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura ,  Atsuhiko Ohmori

发明人： Takashi Matsui ,  Michihisa Magome ,  Yusuke Hasegawa ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura ,  Atsuhiko Ohmori

IPC分类号： G03G9/00

CPC分类号： G03G9/0827 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09328

摘要： To provide a toner which can achieve both low-temperature fixing performance and dot reproducibility and further can obtain images on which any density non-uniformity has been kept from coming about, the toner has toner particles, each of the toner particles has a toner base particle containing a binder resin, a colorant and a release agent, and an inorganic fine powder; the toner having: (1) an average circularity of 0.960 or more; (2) a number-average molecular weight Mn(25° C.) of from 500 or more to 3,000 or less in measuring a tetrahydrofuran-soluble matter at 25° C. of the toner by SEC-MALLS; and (3) a value of Mn(135° C.)/Mn(25° C.) of from 25 or more to 50 or less which is the ratio of number-average molecular weight Mn(135° C.) in measuring an o-dichlorobenzene-soluble matter at 135° C. of the toner by SEC-MALLS to number-average molecular weight Mn(25° C.) in measuring a tetrahydrofuran-soluble matter at 25° C. of the toner by SEC-MALLS.

摘要翻译： 为了提供能够实现低温定影性能和点再现性的调色剂，并且还可以获得不会发生任何密度不均匀的图像，调色剂具有调色剂颗粒，每个调色剂颗粒都具有调色剂基底 含有粘合剂树脂的颗粒，着色剂和脱模剂，以及无机细粉末; 调色剂具有：（1）平均圆形度为0.960以上; （2）通过SEC-MALLS测定调色剂的25℃下的四氢呋喃可溶物质中的数均分子量Mn（25℃）为500以上至3000以下; 和（3）在测量中数均分子量Mn（135℃）的比例为25以上至50以下的Mn（135℃）/ Mn（25℃）的值 通过SEC-MALLS将调色剂在135℃下的邻二氯苯可溶物质通过SEC-MALLS调节至数均分子量Mn（25℃），测定调色剂在25℃下的四氢呋喃可溶物质， 马尔斯

公开(公告)号：US20110294056A1

公开(公告)日：2011-12-01

申请号：US13115576

申请日：2011-05-25

申请人： Michihisa Magome ,  Takashi Matsui ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

发明人： Michihisa Magome ,  Takashi Matsui ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

IPC分类号： G03G9/083

CPC分类号： G03G9/0833 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0839

摘要： A magnetic toner has magnetic toner particles, each of the magnetic toner particles containing a binder resin and a magnetic material, and an inorganic fine powder. The magnetic material is prepared by treating the surface of magnetic iron oxide with a silane compound. When the magnetic iron oxide is dispersed in an aqueous solution of hydrochloric acid and dissolved until the dissolution proportion of the iron element reaches 5% by mass based on the total amount of the iron element contained in the magnetic iron oxide, the amount of silicon eluted by that point of time is 0.05% by mass or more and 0.50% by mass or less based on the magnetic iron oxide. The magnetic material has a moisture adsorption amount per unit area of 0.30 mg/m2 or less.

摘要翻译： 磁性调色剂具有磁性调色剂颗粒，每个磁性调色剂颗粒含有粘合剂树脂和磁性材料，以及无机细粉末。 通过用硅烷化合物处理磁性氧化铁的表面来制备磁性材料。 当磁性氧化铁分散在盐酸水溶液中并溶解，直到铁素的溶解比例相对于磁性氧化铁中含有的铁元素的总量达到5质量％时，硅的洗脱量 该时间点为基于磁性氧化铁的0.05质量％以上且0.50质量％以下。 磁性材料的每单位面积的吸湿量为0.30mg / m 2以下。

公开(公告)号：US08778585B2

公开(公告)日：2014-07-15

申请号：US13817782

申请日：2011-09-12

申请人： Takashi Matsui ,  Michihisa Magome ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

发明人： Takashi Matsui ,  Michihisa Magome ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/08711 ,  G03G9/0806 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08702 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner with good low-temperature fixability even in light-pressure type fixing units, which causes no contamination of fixing films and provides images having stable image densities and excellent image quality after long-term use. The toner includes a toner particle containing a binder resin, a coloring agent, a release agents (a) and (b) The release agent (a) is a monofunctional or bifunctional ester wax; the release agent (b) is a hydrocarbon wax; a solubility of the release agent (a) into the binder resin is higher than that of the release agent (b). When tetrahydrofuran-soluble components of the toner are subjected to GPC, a proportion of components having a molecular weight of 500 or less is 2.5 area % or less. When the tetrahydrofuran-soluble components at 25° C. are subjected to SEC-MALLS, a weight-average molecular weight Mw thereof is 5,000-100,000, and the Mw and the radius of gyration Rw thereof satisfy 5.0×10−4≦Rw/Mw≦1.0×10−2.

摘要翻译： 即使在轻压型固定单元中也具有良好的低温定影性的调色剂，其不会造成定影膜的污染，并且在长期使用后提供具有稳定图像密度和优异图像质量的图像。 调色剂包括含有粘合剂树脂，着色剂，脱模剂（a）和（b）的调色剂颗粒。脱模剂（a）是单官能或双官能酯蜡; 脱模剂（b）是烃蜡; 脱模剂（a）在粘合剂树脂中的溶解度高于脱模剂（b）的溶解度。 当调色剂的四氢呋喃可溶成分进行GPC时，分子量为500以下的成分的比例为2.5面积％以下。 当25℃的四氢呋喃可溶组分进行SEC-MALLS时，其重均分子量Mw为5,000-100,000，Mw和其回转半径Rw满足5.0×10-4＆lt; Mw＆nlE; 1.0×10-2。

公开(公告)号：US08227162B2

公开(公告)日：2012-07-24

申请号：US12754918

申请日：2010-04-06

申请人： Tomohisa Sano ,  Michihisa Magome ,  Takashi Matsui ,  Akira Sakakibara ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

发明人： Tomohisa Sano ,  Michihisa Magome ,  Takashi Matsui ,  Akira Sakakibara ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

IPC分类号： G03G9/00

CPC分类号： G03G9/0832 ,  G03G9/0806 ,  G03G9/0834 ,  G03G9/0839

摘要： To provide a toner excellent in low-temperature fixability, releasing performance, and development stability in long-term use under a high-temperature and high-humidity environment, provided is a magnetic toner including: magnetic toner particles each containing at least a binder resin and a magnetic particles; and an inorganic fine powder, in which: the magnetic particles is a treated magnetic particles treated with a silane compound; the treated magnetic particles has a water adsorption per unit area based on a BET specific surface area of 0.300 mg/m2 or less; portion of styrene extractables constitutes 25 mass % or less among the silane compound in the treated magnetic particles; and the silane compound with which the treated magnetic particles is treated contains a compound having a hydrocarbon group having 2 or more and 4 or less carbon atoms as a main component.

摘要翻译： 为了提供在高温高湿环境下长期使用的低温定影性，脱模性能和显影稳定性优良的调色剂，提供了一种磁性调色剂，其包括：至少含有粘合剂树脂的磁性调色剂颗粒 和磁性颗粒; 和无机细粉末，其中：磁性颗粒是用硅烷化合物处理的经处理的磁性颗粒; 经处理的磁性颗粒基于BET比表面积为0.300mg / m 2或更小，每单位面积吸水量; 苯乙烯可提取物的部分在处理过的磁性颗粒中的硅烷化合物中占25质量％以下。 被处理的磁性颗粒被处理的硅烷化合物含有具有2个以上且4个以下碳原子的烃基作为主要成分的化合物。

公开(公告)号：US20130143154A1

公开(公告)日：2013-06-06

申请号：US13817782

申请日：2011-09-09

申请人： Takashi Matsui ,  Michihisa Magome ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

发明人： Takashi Matsui ,  Michihisa Magome ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

IPC分类号： G03G9/087

CPC分类号： G03G9/08711 ,  G03G9/0806 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08702 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner with good low-temperature fixability even in light-pressure type fixing units, which causes no contamination of fixing films and provides images having stable image densities and excellent image quality after long-term use. The toner includes a toner particle containing a binder resin, a coloring agent, a release agents (a) and (b) The release agent (a) is a monofunctional or bifunctional ester wax; the release agent (b) is a hydrocarbon wax; a solubility of the release agent (a) into the binder resin is higher than that of the release agent (b). When tetrahydrofuran-soluble components of the toner are subjected to GPC, a proportion of components having a molecular weight of 500 or less is 2.5 area % or less. When the tetrahydrofuran-soluble components at 25° C. are subjected to SEC-MALLS, a weight-average molecular weight Mw thereof is 5,000-100,000, and the Mw and the radius of gyration Rw thereof satisfy 5.0×10−4≦Rw/Mw≦1.0×10−2.

摘要翻译： 即使在轻压型固定单元中也具有良好的低温定影性的调色剂，其不会造成定影膜的污染，并且在长期使用后提供具有稳定图像密度和优异图像质量的图像。 调色剂包括含有粘合剂树脂，着色剂，脱模剂（a）和（b）的调色剂颗粒。脱模剂（a）是单官能或双官能酯蜡; 脱模剂（b）是烃蜡; 脱模剂（a）在粘合剂树脂中的溶解度高于脱模剂（b）的溶解度。 当调色剂的四氢呋喃可溶成分进行GPC时，分子量为500以下的成分的比例为2.5面积％以下。 当25℃的四氢呋喃可溶组分进行SEC-MALLS时，其重均分子量Mw为5,000-100,000，Mw和其回转半径Rw满足5.0×10-4.Rw / Mw@1.0×10-2。

公开(公告)号：US08426094B2

公开(公告)日：2013-04-23

申请号：US13115576

申请日：2011-05-25

申请人： Michihisa Magome ,  Takashi Matsui ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

发明人： Michihisa Magome ,  Takashi Matsui ,  Tomohisa Sano ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

IPC分类号： G03G9/00

CPC分类号： G03G9/0833 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0839

摘要： A magnetic toner has magnetic toner particles, each of the magnetic toner particles containing a binder resin and a magnetic material, and an inorganic fine powder. The magnetic material is prepared by treating the surface of magnetic iron oxide with a silane compound. When the magnetic iron oxide is dispersed in an aqueous solution of hydrochloric acid and dissolved until the dissolution proportion of the iron element reaches 5% by mass based on the total amount of the iron element contained in the magnetic iron oxide, the amount of silicon eluted by that point of time is 0.05% by mass or more and 0.50% by mass or less based on the magnetic iron oxide. The magnetic material has a moisture adsorption amount per unit area of 0.30 mg/m2 or less.

摘要翻译： 磁性调色剂具有磁性调色剂颗粒，每个磁性调色剂颗粒含有粘合剂树脂和磁性材料，以及无机细粉末。 通过用硅烷化合物处理磁性氧化铁的表面来制备磁性材料。 当磁性氧化铁分散在盐酸水溶液中并溶解，直到铁素的溶解比例相对于磁性氧化铁中含有的铁元素的总量达到5质量％时，硅的洗脱量 该时间点为基于磁性氧化铁的0.05质量％以上且0.50质量％以下。 磁性材料的每单位面积的吸湿量为0.30mg / m 2以下。

公开(公告)号：US20100266943A1

公开(公告)日：2010-10-21

申请号：US12754918

申请日：2010-04-06

申请人： Tomohisa Sano ,  Michihisa Magome ,  Takashi Matsui ,  Akira Sakakibara ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

发明人： Tomohisa Sano ,  Michihisa Magome ,  Takashi Matsui ,  Akira Sakakibara ,  Shuichi Hiroko ,  Yoshitaka Suzumura ,  Shotaro Nomura

IPC分类号： G03G9/083

CPC分类号： G03G9/0832 ,  G03G9/0806 ,  G03G9/0834 ,  G03G9/0839

摘要： To provide a toner excellent in low-temperature fixability, releasing performance, and development stability in long-term use under a high-temperature and high-humidity environment, provided is a magnetic toner including: magnetic toner particles each containing at least a binder resin and a magnetic particles; and an inorganic fine powder, in which: the magnetic particles is a treated magnetic particles treated with a silane compound; the treated magnetic particles has a water adsorption per unit area based on a BET specific surface area of 0.300 mg/m2 or less; portion of styrene extractables constitutes 25 mass % or less among the silane compound in the treated magnetic particles; and the silane compound with which the treated magnetic particles is treated contains a compound having a hydrocarbon group having 2 or more and 4 or less carbon atoms as a main component.

摘要翻译： 为了提供在高温高湿环境下长期使用的低温定影性，脱模性能和显影稳定性优良的调色剂，提供了一种磁性调色剂，其包括：至少含有粘合剂树脂的磁性调色剂颗粒 和磁性颗粒; 和无机细粉末，其中：磁性颗粒是用硅烷化合物处理的经处理的磁性颗粒; 经处理的磁性颗粒基于BET比表面积为0.300mg / m 2或更小，每单位面积吸水量; 苯乙烯可提取物的部分在处理过的磁性颗粒中的硅烷化合物中占25质量％以下。 处理过的磁性粒子的硅烷化合物含有具有2个以上且4个以下碳原子的烃基作为主要成分的化合物。

公开(公告)号：US20090197192A1

公开(公告)日：2009-08-06

申请号：US12420986

申请日：2009-04-09

申请人： Shuichi Hiroko ,  Tadashi Dojo ,  Michihisa Magome ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara ,  Yoshitaka Suzumura

发明人： Shuichi Hiroko ,  Tadashi Dojo ,  Michihisa Magome ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Akira Sakakibara ,  Yoshitaka Suzumura

IPC分类号： G03G9/083

CPC分类号： G03G9/0833 ,  G03G9/0827 ,  G03G9/0835 ,  G03G9/0838 ,  G03G9/0839 ,  G03G9/08711

摘要： A magnetic toner having magnetic toner particles containing at least a binder resin and a magnetic material, wherein, in the test of dissolution level of the magnetic material, the dissolution percentages S3 (% by mass), S15 (% by mass) and S30 (% by mass), and the dissolution level proportion Sc satisfy the following expressions: 0.5≦S3≦10, 40≦S15≦80, 1.2≦Sc[=(S15−S3)/(S30−S15)]≦10; and the magnetic toner has a dielectric loss factor (tan δ) at 25° C. and at a frequency 1.0×104 Hz, within the range of from 2.0×10−3 or more to 1.5×10−2 or less.

摘要翻译： 具有至少含有粘合剂树脂和磁性材料的磁性调色剂颗粒的磁性调色剂，其中，在磁性材料的溶解水平的测试中，溶解率S3（质量％），S15（质量％）和S30（ 质量％），溶解度比例Sc满足以下表达式：0.5 <= S3 <= 10,40 <= S15 <= 80,1.2 <= Sc [=（S15-S3）/（S30-S15）] <= 10; 并且磁性调色剂在25℃和1.0×104Hz的介电损耗因子（tanδ）在2.0×10 -3以上至1.5×10 -2以下的范围内。

公开(公告)号：US08426091B2

公开(公告)日：2013-04-23

申请号：US12260890

申请日：2008-10-29

申请人： Michihisa Magome ,  Tadashi Dojo ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Shuichi Hiroko

发明人： Michihisa Magome ,  Tadashi Dojo ,  Eriko Yanase ,  Takashi Matsui ,  Tomohisa Sano ,  Shuichi Hiroko

IPC分类号： G03G13/04

CPC分类号： G03G15/0914 ,  G03G9/0819 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/09716 ,  G03G9/09725 ,  G03G2215/0614

摘要： To solve a thin image density and sweeping occurring when a toner carrying member having a small diameter is used, provided is an image-forming method including: a charging step; an electrostatic latent image-forming step; a developing step; a transferring step; and a fixing step, in which a magnetic toner to be used in the method has a specific weight average particle diameter (D4); the magnetic toner has a specific intensity of magnetization in a specific magnetic field; and a surface free energy of a surface of the magnetic toner and a surface free energy of a surface of a toner carrying member to be used in the method satisfy specific relationships.

摘要翻译： 为了解决当使用具有小直径的调色剂承载构件时发生的薄图像浓度和扫描，提供了一种图像形成方法，包括：充电步骤; 静电潜像形成步骤; 发展步骤; 转移步骤; 以及固定步骤，其中在该方法中使用的磁性调色剂具有比重重量平均粒径（D4）; 磁性调色剂在特定磁场中具有特定的磁化强度; 并且该方法中使用的调色剂承载构件的表面的表面自由能满足特定的关系。