公开(公告)号：US06528222B2

公开(公告)日：2003-03-04

申请号：US09900037

申请日：2001-07-09

申请人： Takaaki Kohtaki ,  Wakashi Iida ,  Nobuyoshi Sugahara ,  Takayuki Itakura ,  Yojiro Hotta

发明人： Takaaki Kohtaki ,  Wakashi Iida ,  Nobuyoshi Sugahara ,  Takayuki Itakura ,  Yojiro Hotta

IPC分类号： G03G900

CPC分类号： G03G9/08782 ,  G03G9/08702 ,  G03G9/08755 ,  G03G9/09733 ,  G03G9/09775

摘要： A toner, particularly a color toner suitable for full-color image formation through a substantially oil-less heat-pressure fixing device, is formed from at least a binder resin, a colorant and a wax. The binder resin comprises a polyester-based resin selected from the group consisting of (a) a polyester resin, (b) a hybrid resin having a polyester unit and a vinyl polymer unit, and (c) a mixture of these resins. The wax is characterized by including a structural unit including an OH group, an amide, or an ester group at a specific position.

公开(公告)号：US06586147B2

公开(公告)日：2003-07-01

申请号：US09900039

申请日：2001-07-09

申请人： Wakashi Iida ,  Takaaki Kohtaki ,  Nobuyoshi Sugawara ,  Takayuki Itakura ,  Yojiro Hotta

发明人： Wakashi Iida ,  Takaaki Kohtaki ,  Nobuyoshi Sugawara ,  Takayuki Itakura ,  Yojiro Hotta

IPC分类号： G03G9087

CPC分类号： G03G9/0821 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner, particularly a color toner suitable for full-color image formation through a substantially oil-less heat-pressure fixing device, is formed from at least a binder resin, a colorant and a wax. The toner has viscoelasticity including: a storage modulus at 80° C. (G′80) in a range of 1×106-1×1010 dN/m2, storage moduli at temperatures of 120-180° C. (G′120-180) in a range of 5×103-1×106 dN/m2, and loss tangents (tan &dgr;=G″/G′ as a ratio between G″ (loss modulus) and G′ (storage molecules)) including a loss tangent at 180° C. (tan &dgr;180) and a minimum of loss tangents over a temperature range of 120-180 ° C. (tan &dgr;min) satisfying 1≦tan &dgr;180/tan &dgr;min. The toner further exhibits a thermal behavior providing a heat-absorption curve according to differential scanning calorimetry (DSC) showing a maximum heat-absorption peak temperature in a range of 50-110° C. in a temperature range of 30-200° C.

摘要翻译： 至少粘合剂树脂，着色剂和蜡形成调色剂，特别是适用于通过基本无油的热压定影装置进行全色图像形成的彩色调色剂。 调色剂具有粘弹性，包括：在80℃（G'80）的范围为1×10 6 -1×10 11 dN / m 2的储能模量，在120-180℃的温度下的储存模量（G'120-180） 范围为5×10 3 -1×10 6 dN / m 2，损耗角正切（tanδ= G“/ G'为G'（损耗模量）与G'（保存分子）之间的比率），包括180℃的损耗角正切 （tanδ180）和在120-180℃的温度范围内的最小损耗角正切（tan deltamin）满足1 <=tanδ180 / tan deltamin。 调色剂进一步表现出根据差示扫描量热法（DSC）提供热吸收曲线的热性能，其显示在30-200℃的温度范围内的最大吸热峰温度在50-110℃的范围内。

公开(公告)号：US06751424B2

公开(公告)日：2004-06-15

申请号：US10329384

申请日：2002-12-27

申请人： Nozomu Komatsu ,  Takaaki Kotaki ,  Makoto Kanbayashi ,  Takaaki Kaya ,  Wakashi Iida ,  Nobuyoshi Sugahara ,  Takayuki Itakura ,  Yojiro Hotta

发明人： Nozomu Komatsu ,  Takaaki Kotaki ,  Makoto Kanbayashi ,  Takaaki Kaya ,  Wakashi Iida ,  Nobuyoshi Sugahara ,  Takayuki Itakura ,  Yojiro Hotta

IPC分类号： G03G1520

CPC分类号： G03G9/08795 ,  G03G7/00 ,  G03G9/0819 ,  G03G9/08782 ,  G03G9/08797 ,  G03G13/20 ,  G03G15/2064 ,  G03G15/5029 ,  G03G2215/00805 ,  G03G2215/0081 ,  G03G2215/2045

摘要： An image-forming method for fixing a toner image onto a recording medium, (i) wherein when a high-gloss recording medium (G0>40) is used, an image is formed at a low-speed mode process speed of from 20 mm/sec. to less than 130 mm/sec. and, where the maximum and minimum gloss values of the fixed image (Gmax1 and Gmin1, respectively), satisfy: Gmax1≦G0+40 and Gmin1≧G0−25; and (ii) wherein when a low-gloss recording medium (0≦G0≦40) is used, an image is formed at a high-speed mode process speed of from 130 mm/sec. to 600 mm/sec. and, where values of the fixed image (Gmax2 and Gmin2, respectively), satisfy: Gmax2≦G0+20 and Gmin2≧G0−15.

摘要翻译： 一种用于将调色剂图像定影到记录介质上的图像形成方法，（i）其中当使用高光泽记录介质（G0> 40）时，以20mm的低速模式处理速度形成图像 /秒。 小于130mm / sec。 并且其中固定图像（Gmax1和Gmin1分别）的最大和最小光泽值满足：Gmax1 <= G0 + 40和Gmin1> = G0-25; 和（ii）其中当使用低光泽记录介质（0 <= G0 <= 40）时，以130mm / sec的高速模式处理速度形成图像。 至600mm / sec。 并且其中固定图像（分别为Gmax2和Gmin2）的值满足：Gmax2 <= G0 + 20和Gmin2> = G0-15。

公开(公告)号：US07147980B2

公开(公告)日：2006-12-12

申请号：US10753490

申请日：2004-01-09

申请人： Takayuki Itakura ,  Takaaki Kotaki ,  Yasuhiro Ichikawa ,  Takaaki Kaya ,  Wakashi Iida ,  Hiroyuki Fujikawa ,  Kazuhiko Hayami ,  Nobuyoshi Sugahara ,  Yojiro Hotta

发明人： Takayuki Itakura ,  Takaaki Kotaki ,  Yasuhiro Ichikawa ,  Takaaki Kaya ,  Wakashi Iida ,  Hiroyuki Fujikawa ,  Kazuhiko Hayami ,  Nobuyoshi Sugahara ,  Yojiro Hotta

IPC分类号： G03G9/087

CPC分类号： G03G9/08742 ,  G03G9/08702 ,  G03G9/0874 ,  G03G9/08755 ,  G03G9/08788

摘要： A toner having toner particles each comprising at least a binder resin, a wax, and a colorant is used in an image forming apparatus which has a fixing means comprising a belt-shaped heating member and a pressurizing member. The binder resin contains a resin formed by a reaction between an epoxy group of a vinyl resin (A) having the epoxy group and a carboxyl group of a resin (B) having at least a polyester unit and the carboxyl group. The toner has a storage elastic modulus at a temperature of 80° C. (G′ 80) in the range of 1×105 to 1×108 Pa and has a storage elastic modulus at a temperature of 160° C. (G′ 160) in the range of 1×101 to 1×104 Pa.

摘要翻译： 在具有包括带状加热构件和加压构件的固定装置的图像形成装置中使用具有至少粘合剂树脂，蜡和着色剂的调色剂颗粒的调色剂。 粘合剂树脂包含由具有环氧基的乙烯基树脂（A）的环氧基和至少具有聚酯单元的树脂（B）的羧基与羧基之间的反应形成的树脂。 调色剂在温度为80℃（G'80）的范围内具有在1×10 5至1×10 8 Pa的范围内的储能弹性模量，并且具有储能弹性模量 在160℃的温度下（G'160）在1×10 -1至1×10 4 Pa的范围内。

公开(公告)号：US07115349B2

公开(公告)日：2006-10-03

申请号：US10722463

申请日：2003-11-28

申请人： Wakashi Iida ,  Kazuhiko Hayami ,  Takayuki Itakura ,  Yojiro Hotta

发明人： Wakashi Iida ,  Kazuhiko Hayami ,  Takayuki Itakura ,  Yojiro Hotta

IPC分类号： G03G9/08

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

摘要： Provided is toner which is excellent in developing property, transferring property, and fixing property, hardly affected by its surrounding, and has good endurance. The toner has a peak temperature of maximum endothermic peak in the range of 60 to 100° C. in an endothermic curve of differential scanning calorimetry (DSC) measurement; silica particles in the toner contain a titanium element; and the silica particles satisfy the following expressions. 0.7≦(Ia1/Ib1)≦2.0 0.7≦(Ia2/Ib2)≦2.0 where Ia1 represents a maximum intensity in the case of 2θ=25.3 deg, Ib1 represents a mean intensity in the cases of 2θ=25.3 deg+2.0 deg. and of 2θ=25.3 deg.−2.0 deg., Ia2 represents a maximum intensity in the case of 2θ=27.5 deg and Ib2 represents a mean intensity in the cases of 2θ=27.5. deg+2.0 deg. and of 2θ=27.5 deg.−2.0 deg.

摘要翻译： 提供显影性，转印性和定影性优异的调色剂，几乎不受其周围的影响，并且具有良好的耐久性。 调色剂在差示扫描量热法（DSC）测量的吸热曲线中具有在60至100℃范围内的最大吸热峰的峰值温度; 调色剂中的二氧化硅颗粒含有钛元素; 二氧化硅粒子满足下式。 <？in-line-formula description =“In-line Formulas”end =“lead”？> 0.7 <=（Ia <1> / Ib ）<= 2.0 < ？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line formula”end =“lead”？> 0.7 <=（Ia _{<= 2.0 <？in-line-formula description =“In-line Formulas”end =“tail” 在2θ= 25.3度的情况下，SUB>表示最大强度，Ib 2表示在2θ= 25.3°+ 2.0°的情况下的平均强度。 在2θ= 27.5°的情况下，Ia 2表示最大强度，而在2θ= 27.5°的情况下，Ib 2表示在这些情况下的平均强度 的2theta = 27.5。 deg + 2.0度 并且2θ= 27.5°-2.0°。}

公开(公告)号：US06808852B2

公开(公告)日：2004-10-26

申请号：US10233417

申请日：2002-09-04

申请人： Yojiro Hotta ,  Wakashi Iida ,  Tetsuya Ida ,  Takayuki Itakura ,  Nozomu Komatsu

发明人： Yojiro Hotta ,  Wakashi Iida ,  Tetsuya Ida ,  Takayuki Itakura ,  Nozomu Komatsu

IPC分类号： G03G900

CPC分类号： G03G9/0821 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G13/20

摘要： A toner characterized by improved fixing performances with no or minimum oil application is formed of: (i) a binder resin, (ii) a colorant, (iii) a hydrocarbon wax, (iv) a resin composition formed by copolymerization of a styrenic monomer together with at least one of nitrogen-containing vinyl monomers, carboxyl group-containing monomers, hydroxyl group-containing monomers and (meth)acrylate ester monomers, in the presence of a hydrocarbon unit; and (v) an organometallic compound. The binder resin (i) comprises a polyester component in a proportion of at least 60 wt. % of the binder resin. The toner has a GPC molecular weight distribution including a weight-average molecular weight (Mw) of at least 4.0×104 an a ratio Mw/Mn of at least 50 between the Mw and a number-average molecular weight (Mn).

摘要翻译： 特征在于没有或最少油施用的改进的定影性能的调色剂由以下物质形成：（i）粘合剂树脂，（ii）着色剂，（iii）烃蜡，（iv）通过苯乙烯单体 与烃单元存在下的含氮乙烯基单体，含羧基单体，含羟基的单体和（甲基）丙烯酸酯单体中的至少一种一起使用; 和（v）有机金属化合物。 粘合剂树脂（i）包含至少60重量％的聚酯组分。 ％的粘合剂树脂。 调色剂的GPC分子量分布包括Mw和数均分子量（Mn）之间的重均分子量（Mw）至少为4.0×10 4，Mw / Mn比至少为50。

公开(公告)号：US06326114B1

公开(公告)日：2001-12-04

申请号：US09549193

申请日：2000-04-13

申请人： Takayuki Itakura ,  Masaaki Taya ,  Wakashi Iida ,  Junko Yoshikawa ,  Nobuyoshi Sugahara

发明人： Takayuki Itakura ,  Masaaki Taya ,  Wakashi Iida ,  Junko Yoshikawa ,  Nobuyoshi Sugahara

IPC分类号： G03G9097

CPC分类号： G03G9/08755 ,  G03G9/0975 ,  G03G9/09783

摘要： A toner includes at least a polyester resin having a carboxyl group, a coloring agent, 0.1-10 mass % of a metal salicylate compound with respect to a mass of the toner and 20-400 ppm of a hindered phenol with respect to the mass of the toner.

摘要翻译： 调色剂至少包含具有羧基的聚酯树脂，着色剂，相对于调色剂的质量为0.1-10质量％的金属水杨酸酯化合物和相对于质量的调色剂为20-400ppm的受阻酚 墨粉。

公开(公告)号：US20060127793A1

公开(公告)日：2006-06-15

申请号：US11268675

申请日：2005-11-07

申请人： Yojiro Hotta ,  Tetsuya Ida ,  Wakashi Iida ,  Akira Hashimoto ,  Nozomu Komatsu ,  Yoshinobu Baba

发明人： Yojiro Hotta ,  Tetsuya Ida ,  Wakashi Iida ,  Akira Hashimoto ,  Nozomu Komatsu ,  Yoshinobu Baba

IPC分类号： G03G9/113

CPC分类号： G03G9/1134 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1135 ,  G03G9/1136 ,  G03G9/1137

摘要： In a carrier comprising carrier particles; each carrier particle comprising a carrier core and a coat layer for coating the carrier core, the carrier core has a ferrite component containing i) a metal oxide having at least one of metallic elements Mg, Li and Ca, the total-sum content of which is 10 to 40 mole % based on the whole ferrite component, and ii) a metal oxide having at least one of metallic elements Mn, Cu, Cr and Zn, the total-sum content of which is 50 to 4,000 ppm based on the whole ferrite component. The carrier has a volume distribution based 50% particle diameter (D50) of from 15.0 to 55.0 μm and a degree of surface unevenness of from 1.05 to 1.30, and the coat layer contains particles; the particles having a number-average primary particle diameter of from 10 to 500 nm.

摘要翻译： 在包含载体颗粒的载体中; 每个载体颗粒包括载体芯和用于涂覆载体芯的涂层，载体芯具有铁氧体组分，其含有i）具有金属元素Mg，Li和Ca中的至少一种的金属氧化物，其总和含量 相对于整个铁素体成分为10〜40摩尔％，ii）具有金属元素Mn，Cu，Cr和Zn中的至少一种的金属氧化物，其总和含量基于整体为50〜4,000ppm 铁氧体组分。 载体的体积分布基于50％粒径（D50）为15.0〜55.0μm，表面凹凸度为1.05〜1.30，涂层含有粒子; 该粒子的数均一次粒径为10〜500nm。

公开(公告)号：US20050106488A1

公开(公告)日：2005-05-19

申请号：US10980252

申请日：2004-11-04

申请人： Tetsuya Ida ,  Yasuhiro Ichikawa ,  Wakashi Iida ,  Yojiro Hotta ,  Kazuhiko Hayami ,  Hirohide Tanikawa

发明人： Tetsuya Ida ,  Yasuhiro Ichikawa ,  Wakashi Iida ,  Yojiro Hotta ,  Kazuhiko Hayami ,  Hirohide Tanikawa

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G15/01

CPC分类号： G03G9/08755 ,  G03G9/081 ,  G03G9/091 ,  G03G9/0926

摘要： The present invention provides a yellow toner which is excellent in transparency of an image formed on an OHP sheet, excellent in color reproducibility even when a light-pressure fixing unit is employed, excellent in coloring power and charge property, and is reduced in occurrence of filming. The present invention also provides a yellow toner having excellent durability and capable of contributing to the simplification or miniaturization of the constitution of an image forming apparatus. The yellow toner of the invention comprises a binder resin and a colorant, the binder resin contains at least a polyester unit, and the toner in the powder state has a lightness L* satisfying the relationship of L*>87 and has a chromaticity b* satisfying the relationship of 106

摘要翻译： 本发明提供一种在OHP片上形成的图像的透明度优异的黄色调色剂，即使使用光压固定单元，着色力和充电性也优异，颜色再现性优异，发色性降低 拍摄 本发明还提供了一种黄色调色剂，其具有优异的耐久性并且能够有助于简化或小型化图像形成装置的结构。 本发明的黄色调色剂包含粘合剂树脂和着色剂，所述粘合剂树脂至少含有聚酯单元，粉末状态的调色剂具有满足L *> 87的关系的亮度L *，并具有色度b * 满足106