公开(公告)号：US20110256480A1

公开(公告)日：2011-10-20

申请号：US13166673

申请日：2011-06-22

申请人： Katsuhisa Yamazaki ,  Masami Fujimoto ,  Masaaki Taya

发明人： Katsuhisa Yamazaki ,  Masami Fujimoto ,  Masaaki Taya

IPC分类号： G03G9/00

CPC分类号： G03G9/08797 ,  G03G9/08711

摘要： An object of the present invention is to provide a toner which allows fixation at low temperatures, which is excellent in anti-offset ability, and which provides a high quality image at high and low humidities in a stable manner without causing any image defect over time. Provided is a toner, containing at least a binder resin and a colorant in which: the binder resin in the toner contains 60% by mass or more of a styrene/acryl resin and a THF-insoluble fraction A which is an extraction residue obtained by carrying out Soxhlet extraction with tetrahydrofuran (THF) for 16 hours; the THF-insoluble fraction A contains a TOL-insoluble fraction B which is an extraction residue obtained by carrying out Soxhlet extraction with toluene (TOL) for 16 hours; and a mass ratio (B/A) between the THF-insoluble fraction A and the TOL-insoluble fraction B is in the range of 0.1≦B/A≦0.5.

摘要翻译： 本发明的目的是提供一种允许在低温下固定的调色剂，其抗偏移能力优异，并且以稳定的方式在高低湿度下提供高质量的图像，而不会随着时间的流逝而引起任何图像缺陷 。 提供了至少含有粘合剂树脂和着色剂的调色剂，其中：调色剂中的粘合剂树脂含有60质量％以上的苯乙烯/丙烯酸树脂和作为由 用四氢呋喃（THF）进行索格利特萃取16小时; THF不溶性级分A含有TOL不溶级分B，它是通过用甲苯（TOL）进行索格利特萃取16小时获得的萃取残留物; THF不溶部分A和TOL不溶部分B之间的质量比（B / A）在0.1＆lt; 1EE; B / A＆lt; NlE; 0.5的范围内。

公开(公告)号：US08026030B2

公开(公告)日：2011-09-27

申请号：US11556500

申请日：2006-11-03

申请人： Syuhei Moribe ,  Katsuhisa Yamazaki ,  Shuichi Hiroko

发明人： Syuhei Moribe ,  Katsuhisa Yamazaki ,  Shuichi Hiroko

IPC分类号： G03G9/087

CPC分类号： G03G9/08795 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08786 ,  G03G9/08797

摘要： The present invention provides a toner which is excellent in low-temperature fixability and transparency and has high gloss, and which is excellent in offset resistance, storage stability, and development stability. The toner is characterized in that: a square radius of inertia Rt at a peak top of a main peak in GPC-RALLS-viscometer analysis of tetrahydrofuran (THF) soluble matter when the toner is dissolved in a THF solvent at 25° C. for 24 hours is 1.0 nm to 3.8 nm; and the square radius of inertia Rt and a square radius of inertia Rp at a peak top of a main peak in GPC-RALLS-viscometer analysis of THF soluble matter when linear polystyrene, having an absolute peak molecular weight value at the same value as a main peak value of the toner, is dissolved in a THF solvent at 25° C. for 24 hours satisfy the relationship of Rt/Rp

摘要翻译： 本发明提供一种调色剂，其低温定影性和透明性优异，光泽度高，耐粘连性，保存稳定性和显影稳定性优异。 调色剂的特征在于：当调色剂在25℃下溶于THF溶剂中时，在GPC-RALLS-粘度计中分析四氢呋喃（THF）可溶物质时，在主峰顶部的方形半径惯性Rt为 24小时为1.0nm至3.8nm; 和当具有相同值的绝对峰值分子量值的线性聚苯乙烯时，在THF可溶物质的GPC-RALLS-粘度计分析中，主峰的峰顶处的平方半径R R和平方半径Rp 调色剂的主峰值在25℃下溶解在THF溶剂中24小时，满足Rt / Rp <0.85的关系。

公开(公告)号：US07855042B2

公开(公告)日：2010-12-21

申请号：US11755225

申请日：2007-05-30

申请人： Takakuni Kobori ,  Kenji Okado ,  Masami Fujimoto ,  Katsuhisa Yamazaki ,  Syuhei Moribe ,  Daisuke Yoshiba

发明人： Takakuni Kobori ,  Kenji Okado ,  Masami Fujimoto ,  Katsuhisa Yamazaki ,  Syuhei Moribe ,  Daisuke Yoshiba

IPC分类号： G03G9/08

CPC分类号： G03G9/0815 ,  G03G5/05 ,  G03G5/0525 ,  G03G5/0539 ,  G03G5/0542 ,  G03G5/0564 ,  G03G5/0596 ,  G03G5/0614 ,  G03G5/0696 ,  G03G5/147 ,  G03G5/14704 ,  G03G5/14734 ,  G03G5/14795 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/0835 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708

摘要： To provide a developer and an image forming method with each of which a high-resolution, high-definition image can be stably obtained over a long time period irrespective of an environment. The present invention provides a developer including at least: toner particles each containing at least a binder resin; and a composite inorganic fine powder, the developer being characterized in that: the composite inorganic fine powder has a peak at a Bragg angle (2θ±0.20 deg) of each of 32.20 deg, 25.80 deg, and 27.50 deg in a CuKα characteristic X-ray diffraction pattern; and the half width of the X-ray diffraction peak at a Bragg angle (2θ±0.20 deg) of 32.20 deg is 0.20 to 0.30 deg.

摘要翻译： 为了提供一种显影剂和图像形成方法，其中每个都可以长时间稳定地获得高分辨率，高清晰度图像，而不管环境如何。 本发明提供一种显影剂，至少包含：至少含有粘合剂树脂的调色剂颗粒; 和复合无机细粉末，其特征在于：所述复合无机细粉末在CuKα特性X为32.20度，25.80度和27.50度的布拉格角（2θ;±0.20度）处具有峰值 射线衍射图; 并且在32.20度的布拉格角（2θ;±0.20度）处的X射线衍射峰的半值宽度为0.20至0.30度。

公开(公告)号：US07700254B2

公开(公告)日：2010-04-20

申请号：US12056917

申请日：2008-03-27

申请人： Syuhei Moribe ,  Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Hirata Junko ,  Masami Fujimoto ,  Takashige Kasuya

发明人： Syuhei Moribe ,  Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Hirata Junko ,  Masami Fujimoto ,  Takashige Kasuya

IPC分类号： G03G9/087

CPC分类号： G03G9/08795 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08797

摘要： The present invention aims to provide a toner having excellent developability and excellent low-temperature fixability without causing adhesion of ejected sheets even in a high-speed oilless fixing system and capable of preventing a frameless printing from causing a twisted offseting phenomenon. Specifically, provided is a toner having toner particles including at least a binder resin and a colorant, in which, when the toner is dissolved in a tetrahydrofuran (THF) solvent at 25° C. for 24 hours, the ratio of a THF-soluble matter having an intrinsic viscosity of 5.0×10−2 dl/g or less with respect to the total amount of the THF-soluble matter in a GPC-RALLS-viscometer analysis is 15.0 mass % to 60.0 mass %, and the ratio of a THF-soluble matter having an intrinsic viscosity of 1.5×10−1 dl/g or more with respect to the total amount of the THF-soluble matter in a GPC-RALLS-viscometer analysis is 20.0 mass % to 40.0 mass %.

摘要翻译： 本发明的目的在于提供一种即使在高速无油定影系统中也不会引起喷射片粘附并且能够防止无框印刷引起扭转偏移现象的显影性和优异的低温定影性的调色剂。 具体地说，提供了具有至少包含粘合剂树脂和着色剂的调色剂颗粒的调色剂，其中当调色剂在25℃下溶解在四氢呋喃（THF）溶剂中24小时时，THF可溶的比例 在GPC-RALLS-粘度计分析中，相对于THF可溶物的总量，特性粘度为5.0×10 -2 dl / g以下的物质为15.0质量％〜60.0质量％，a 在GPC-RALLS-粘度计分析中，相对于THF可溶物质的总量，特性粘度为1.5×10 -1 dl / g以上的THF可溶物质为20.0质量％〜40.0质量％。

公开(公告)号：US07638251B2

公开(公告)日：2009-12-29

申请号：US11671872

申请日：2007-02-06

申请人： Katsuhisa Yamazaki ,  Shuichi Hiroko ,  Shuhei Moribe

发明人： Katsuhisa Yamazaki ,  Shuichi Hiroko ,  Shuhei Moribe

IPC分类号： G03G9/087

CPC分类号： G03G9/0821 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： The invention provides a toner which is excellent in its low-temperature fixing property and high-temperature offset resistance regardless of the types of paper, and constantly provides high-quality images regardless of environments and does not generate image defects even after prolonged use. In a master curve of the toner at a reference temperature of 150° C., a difference between a storage modulus at a frequency of 0.1 Hz and a storage modulus at a frequency of 1000 Hz is set in a rage from 0 to 2.5×105 Pa, where the activation energy determined from a shift factor is brought to a range from 50 to 130 kJ/mol.

摘要翻译： 本发明提供了一种调色剂，其低温定影性和耐高温胶印性优异，不论纸张类型如何，并且不管环境如何，均不断提供高质量的图像，即使长时间使用也不会产生图像缺陷。 在调色剂的基准温度为150℃的主曲线中，频率为0.1Hz的储能模量与频率为1000Hz的储能模量之间的差设定为0〜2.5×10 5 Pa ，其中由偏移因子确定的活化能达到50至130kJ / mol的范围。

公开(公告)号：US07544455B2

公开(公告)日：2009-06-09

申请号：US12179090

申请日：2008-07-24

申请人： Daisuke Yoshiba ,  Katsuhisa Yamazaki

发明人： Daisuke Yoshiba ,  Katsuhisa Yamazaki

IPC分类号： G03G9/083

CPC分类号： G03G9/0821 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0838

摘要： A magnetic toner having magnetic toner particles each containing at least a binder resin and a magnetic iron oxide particle, in which: when a solution is prepared by dissolving the magnetic iron oxide particles in an acidic aqueous solution and an Fe element amount in a solution in which all the magnetic iron oxide particles are dissolved is defined as a total Fe element amount, a ratio X of the amount of Fe(2+) in a solution in which the magnetic iron oxide particles are dissolved to a state where 10 mass % of the total Fe element amount is present in the solution (solution having an Fe element-dissolving ratio of 10 mass %) to an Fe element amount in the solution having a specific Fe element-dissolving ratio; and the dielectric loss tangents of the magnetic toner measured at a temperature of 40° C. satisfy specific conditions.

摘要翻译： 一种具有磁性调色剂颗粒的磁性调色剂，每个磁性调色剂颗粒至少含有粘合剂树脂和磁性氧化铁颗粒，其中：当将磁性氧化铁颗粒溶解在酸性水溶液中并将Fe元素量溶解在溶液中时， 将所有的磁性氧化铁颗粒溶解的全部Fe元素量定义为磁性氧化铁颗粒溶解的溶液中的Fe（2+）量与10质量％ 在具有特定的Fe元素溶解比的溶液中，Fe溶液中Fe元素量的Fe元素总量存在于Fe元素溶解率为10质量％的溶液中， 并且在40℃的温度下测量的磁性调色剂的介电损耗角正切满足特定条件。

公开(公告)号：US20070224530A1

公开(公告)日：2007-09-27

申请号：US11755225

申请日：2007-05-30

申请人： Takakuni Kobori ,  Kenji Okado ,  Masami Fujimoto ,  Katsuhisa Yamazaki ,  Syuhei Moribe ,  Daisuke Yoshiba

发明人： Takakuni Kobori ,  Kenji Okado ,  Masami Fujimoto ,  Katsuhisa Yamazaki ,  Syuhei Moribe ,  Daisuke Yoshiba

IPC分类号： G03G9/08

CPC分类号： G03G9/0815 ,  G03G5/05 ,  G03G5/0525 ,  G03G5/0539 ,  G03G5/0542 ,  G03G5/0564 ,  G03G5/0596 ,  G03G5/0614 ,  G03G5/0696 ,  G03G5/147 ,  G03G5/14704 ,  G03G5/14734 ,  G03G5/14795 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/0835 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708

摘要： To provide a developer and an image forming method with each of which a high-resolution, high-definition image can be stably obtained over a long time period irrespective of an environment. The present invention provides a developer including at least: toner particles each containing at least a binder resin; and a composite inorganic fine powder, the developer being characterized in that: the composite inorganic fine powder has a peak at a Bragg angle (2θ±0.20 deg) of each of 32.20 deg, 25.80 deg, and 27.50 deg in a CuKα characteristic X-ray diffraction pattern; and the half width of the X-ray diffraction peak at a Bragg angle (2θ±0.20 deg) of 32.20 deg is 0.20 to 0.30 deg.

摘要翻译： 为了提供一种显影剂和图像形成方法，其中每个都可以长时间稳定地获得高分辨率，高清晰度图像，而不管环境如何。 本发明提供一种显影剂，至少包含：至少含有粘合剂树脂的调色剂颗粒; 和复合无机细粉末，所述显影剂的特征在于：所述复合无机细粉末在CuKalpha特征X射线衍射中具有32.20度，25.80度和27.50度的布拉格角（2θ±0.20度）的峰值， 射线衍射图; 并且在32.20度的布拉格角（2θ±0.20度）处的X射线衍射峰的半值宽度为0.20至0.30度。

公开(公告)号：US07241547B2

公开(公告)日：2007-07-10

申请号：US11485467

申请日：2006-07-13

申请人： Tsuyoshi Takiguchi ,  Yosuke Morikawa ,  Takashige Kasuya ,  Kimihiro Yoshimura ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

发明人： Tsuyoshi Takiguchi ,  Yosuke Morikawa ,  Takashige Kasuya ,  Kimihiro Yoshimura ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

IPC分类号： G03G21/10

CPC分类号： G03G9/09725 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/09708 ,  G03G15/0241

摘要： A toner exhibits excellent image characteristics, and also has an excellent charging property even if the toner is used in a cleaning-simultaneous-with-developing system having a direct injection charging mechanism. The toner includes toner particles and non-magnetic metallic-compound fine particles. The weight average particle diameter of the toner is 3.0 μm to 12.0 μm. The metallic-compound fine particles are conductive metallic-compound fine particles having a specific surface area (cm2/cm3) of 5×105 to 100×105; a medium diameter (D50) of 0.4 μm to 4.0 μm with respect to a volume-based particle diameter distribution, the medium diameter (D50) being smaller than the weight average particle diameter of the toner; and a 90% particle diameter D90 of 6.0 μm or less with respect to a volume-based particle diameter.

摘要翻译： 调色剂表现出优异的图像特性，并且即使将调色剂用于具有直接注入充电机构的同时显影清洗系统中也具有优异的充电特性。 调色剂包括调色剂颗粒和非磁性金属化合物细颗粒。 调色剂的重均粒径为3.0μm〜12.0μm。 金属化合物微粒是具有5×10 5以上的比表面积（cm 2以上/ cm 3以下）的导电性金属化合物微粒〜 100×10 5; 相对于基于体积的粒径分布为0.4μm至4.0μm的中等直径（D≤50），中等直径（D≤50<）小于重量 调色剂的平均粒径; 和相对于基于体积的粒径为6.0μm或更小的90％粒径D 90 N。

公开(公告)号：US20070147886A1

公开(公告)日：2007-06-28

申请号：US11681856

申请日：2007-03-05

申请人： Tsuyoshi TAKIGUCHI ,  Yosuke Morikawa ,  Takashige Kasuya ,  Kimihiro Yoshimura ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

发明人： Tsuyoshi TAKIGUCHI ,  Yosuke Morikawa ,  Takashige Kasuya ,  Kimihiro Yoshimura ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

IPC分类号： G03G15/00

CPC分类号： G03G9/09725 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/09708 ,  G03G15/0241

摘要： A toner exhibits excellent image characteristics, and also has an excellent charging property even if the toner is used in a cleaning-simultaneous-with-developing system having a direct injection charging mechanism. The toner includes toner particles and non-magnetic metallic-compound fine particles. The weight average particle diameter of the toner is 3.0 μm to 12.0 μm. The metallic-compound fine particles are conductive metallic-compound fine particles having a specific surface area (cm2/cm3) of 5×105 to 100×105; a medium diameter (D50) of 0.4 μm to 4.0 μm with respect to a volume-based particle diameter distribution, the medium diameter (D50) being smaller than the weight average particle diameter of the toner; and a 90% particle diameter D90 of 6.0 μm or less with respect to a volume-based particle diameter.

摘要翻译： 调色剂表现出优异的图像特性，并且即使将调色剂用于具有直接注入充电机构的同时显影清洗系统中也具有优异的充电特性。 调色剂包括调色剂颗粒和非磁性金属化合物细颗粒。 调色剂的重均粒径为3.0μm〜12.0μm。 金属化合物微粒是具有5×10 5以上的比表面积（cm 2以上/ cm 3以上）的导电性金属化合物微粒〜 100x10 5; 相对于基于体积的粒径分布为0.4μm至4.0μm的中等直径（D≤50），中等直径（D <50>）为 小于调色剂的重均粒径; 和相对于基于体积的粒径为6.0μm或更小的90％粒径D 90 N。

公开(公告)号：US20070105033A1

公开(公告)日：2007-05-10

申请号：US11556500

申请日：2006-11-03

申请人： Syuhei Moribe ,  Katsuhisa Yamazaki ,  Shuichi Hiroko

发明人： Syuhei Moribe ,  Katsuhisa Yamazaki ,  Shuichi Hiroko

IPC分类号： G03G9/087

CPC分类号： G03G9/08795 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08786 ,  G03G9/08797

摘要： The present invention provides a toner which is excellent in low-temperature fixability and transparency and has high gloss, and which is excellent in offset resistance, storage stability, and development stability. The toner is characterized in that: a square radius of inertia Rt at a peak top of a main peak in GPC-RALLS-viscometer analysis of tetrahydrofuran (THF) soluble matter when the toner is dissolved in a THF solvent at 25° C. for 24 hours is 1.0 nm to 3.8 nm; and the square radius of inertia Rt and a square radius of inertia Rp at a peak top of a main peak in GPC-RALLS-viscometer analysis of THF soluble matter when linear polystyrene, having an absolute peak molecular weight value at the same value as a main peak value of the toner, is dissolved in a THF solvent at 25° C. for 24 hours satisfy the relationship of Rt/Rp

摘要翻译： 本发明提供一种调色剂，其低温定影性和透明性优异，光泽度高，耐粘连性，保存稳定性和显影稳定性优异。 调色剂的特征在于：当调色剂在25℃下溶于THF溶剂中时，在GPC-RALLS-粘度计中分析四氢呋喃（THF）可溶物质时，在主峰顶部的方形半径惯性Rt为 24小时为1.0nm至3.8nm; 和当具有相同值的绝对峰值分子量值的线性聚苯乙烯时，在THF可溶物质的GPC-RALLS-粘度计分析中，主峰的峰顶处的平方半径R R和平方半径Rp 调色剂的主峰值在25℃下溶解在THF溶剂中24小时，满足Rt / Rp <0.85的关系。