公开(公告)号：US10007202B2

公开(公告)日：2018-06-26

申请号：US15550908

申请日：2016-07-01

申请人： KYOCERA Document Solutions Inc.

发明人： Seishi Ojima

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

CPC分类号： G03G9/09321 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/09307 ,  G03G9/09357 ,  G03G9/09371 ,  G03G9/09741

摘要： A positively chargeable toner includes a plurality of toner particles each including a core and a shell layer disposed over a surface of the core. The core contains a polyester resin. The shell layer covers at least 40% and no greater than 80% of an area of the surface of the core, ζ(4) is greater than 0 V. ζ(6) is less than 0 V. A relationship represented by |ζ(3)−ζ(4)|>|ζ(6)−ζ(7)| is satisfied. ζ(3), ζ(4), ζ(6), and ζ(7) represent zeta potentials of the positively chargeable toner with the toner particles having no external additive. ζ(3), ζ(4), ζ(6), and ζ(7) are respectively measured in an aqueous medium at pH 3, pH 4, pH 6, and pH 7.

公开(公告)号：US09915887B2

公开(公告)日：2018-03-13

申请号：US14502729

申请日：2014-09-30

申请人： MITSUBISHI CHEMICAL CORPORATION

发明人： Masaya Ota ,  Shiho Sano

IPC分类号： G03G9/087 ,  G03G9/093 ,  G03G9/08 ,  G03G15/00

CPC分类号： G03G9/09335 ,  G03G9/08 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/08733 ,  G03G9/08782 ,  G03G9/09314 ,  G03G9/09357 ,  G03G15/00

摘要： The object of the present invention is to provide a toner for development of electrostatic images (hereinafter referred to as toner) which, while preventing dust during fixation, secures improved hot offset resistance and is excellent in providing good image quality. The invention relates to the toner that comprises a binder resin, a colorant and a wax, wherein the wax has, while in a state of being contained in the toner, a melting point of from 55° C. to 90° C., and the value Dt of the toner satisfies a specific formula.

公开(公告)号：US09612543B2

公开(公告)日：2017-04-04

申请号：US14495003

申请日：2014-09-24

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Hae-ree Joo ,  Yo-da Shin ,  Seung-jun Lee

IPC分类号： G03G9/087 ,  G03G9/093

CPC分类号： G03G9/08782 ,  G03G9/09342 ,  G03G9/09357 ,  G03G9/09371 ,  G03G9/09378 ,  G03G9/09392

摘要： Toner for developing electrostatic images including core particles that contain a colorant, a binder resin, and a wax, and exhibiting low-temperature fixability, high-temperature anti-offset property, image durability, flowability, high-temperature preservability, and low particle emission rate.

公开(公告)号：US20150192870A1

公开(公告)日：2015-07-09

申请号：US14495003

申请日：2014-09-24

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Hae-ree JOO ,  Yo-da SHIN ,  Seung-jun LEE

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/08782 ,  G03G9/09342 ,  G03G9/09357 ,  G03G9/09371 ,  G03G9/09378 ,  G03G9/09392

摘要： Toner for developing electrostatic images including core particles that contain a colorant, a binder resin, and a wax, and exhibiting low-temperature fixability, high-temperature anti-offset property, image durability, flowability, high-temperature preservability, and low particle emission rate.

摘要翻译： 用于显影静电图像的调色剂，包括含有着色剂的核心颗粒，粘合剂树脂和蜡，并且具有低温定影性，高温抗粘附性，图像耐久性，流动性，高温保存性和低颗粒发射 率。

公开(公告)号：US08221954B2

公开(公告)日：2012-07-17

申请号：US12832100

申请日：2010-07-08

申请人： Xiaolin Xie ,  Guilin Xiao ,  Wenbu Li ,  Zeguan Lan

发明人： Xiaolin Xie ,  Guilin Xiao ,  Wenbu Li ,  Zeguan Lan

IPC分类号： G03G9/08

CPC分类号： G03G9/0804 ,  G03G9/0806 ,  G03G9/0812 ,  G03G9/08711 ,  G03G9/08782 ,  G03G9/09335 ,  G03G9/09357 ,  G03G9/09378 ,  G03G9/09385 ,  G03G9/09392 ,  G03G9/09716 ,  G03G9/09725

摘要： A method of preparing a color toner by: a) preparing an anionic polymer composite emulsion comprising wax with a wax particle and nanosilica as core by in situ emulsion polymerization; b) preparing a cationic polymer composite emulsion comprising colorant with a colorant and nanosilica as core by in situ emulsion polymerization; c) agglutinating the anionic polymer composite emulsion comprising wax and the cationic polymer composite emulsion comprising colorant; and d) filtering, washing, and drying the product obtained in c). The color toner prepared by this method. The color toner has high development density, high resolution, low bottom ash, low waste rate, and low consumption, and is easy to recover and recycle.

摘要翻译： 一种通过以下步骤制备彩色调色剂的方法：a）通过原位乳液聚合制备包含蜡与蜡颗粒和纳米二氧化硅作为核心的阴离子聚合物复合乳液; b）通过原位乳液聚合制备包含着色剂和纳米二氧化硅作为核的着色剂的阳离子聚合物复合乳液; c）将包含蜡的阴离子聚合物复合乳液和包含着色剂的阳离子聚合物复合乳液凝结; 和d）过滤，洗涤和干燥c）中获得的产物。 通过该方法制备的彩色调色剂。 彩色调色剂具有高显影密度，高分辨率，低灰分，低废物率，低消耗，易于回收和回收利用。

公开(公告)号：US20100183969A1

公开(公告)日：2010-07-22

申请号：US12676531

申请日：2008-09-05

申请人： Manabu Suzuki ,  Yutaka Murai

发明人： Manabu Suzuki ,  Yutaka Murai

IPC分类号： G03G9/08

CPC分类号： C08J3/246 ,  C08J3/05 ,  C08J2367/06 ,  G03G9/0804 ,  G03G9/0806 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09314 ,  G03G9/0935 ,  G03G9/09357 ,  G03G9/09371 ,  G03G9/09392

摘要： The present invention relates to a toner for electrophotography which has a small particle size and is excellent in all of low-temperature fusing ability, anti-hot offset property and image characteristics and a process for producing the toner, as well as to a dispersion of crosslinked resin particles which is used for production of the toner for electrophotography and a process for producing the dispersion of crosslinked resin particles. The dispersion of crosslinked resin particles having a volume median particle size (D50) of from 0.05 to 0.7 μm according to the present invention is produced by a process including the steps of (A) neutralizing a resin containing an acid group-containing polyester in an aqueous medium to obtain a dispersion of resin particles; and (B) mixing the dispersion of resin particles obtained in the step (A) with an oxazoline group-containing polymer at a temperature of from 60 to 100° C.

摘要翻译： 本发明涉及一种电子照相用调色剂，其具有小的粒径，并且全部具有优异的低温熔合性，抗热粘合性和图像特性以及调色剂的制备方法以及分散体 用于电子照相用调色剂的交联树脂颗粒和交联树脂颗粒分散体的制备方法。 根据本发明的体积中值粒径（D50）为0.05〜0.7μm的交联树脂颗粒的分散体是通过包括以下步骤的方法生产的：（A）将包含含酸基的聚酯的树脂中和 水性介质，得到树脂颗粒的分散体; 和（B）将步骤（A）中获得的树脂颗粒的分散体与含恶唑啉基的聚合物在60至100℃的温度下混合。

公开(公告)号：US07745088B2

公开(公告)日：2010-06-29

申请号：US12268767

申请日：2008-11-11

申请人： Kazumi Yoshizaki ,  Koji Inaba ,  Yasushi Katsuta

发明人： Kazumi Yoshizaki ,  Koji Inaba ,  Yasushi Katsuta

IPC分类号： G03G9/08

CPC分类号： G03G9/08797 ,  G03G9/0806 ,  G03G9/0815 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/09357 ,  G03G9/09385 ,  G03G9/09392 ,  G03G9/09708 ,  G03G9/09733

摘要： Provided is anon-magnetic toner including toner particles each containing at least a binder resin, a colorant, and a wax component, and an inorganic fine powder, in which: (1) when a temperature in a temperature range of 50 to 80° C. at which a loss tangent (tan δ) shows a maximum is represented by T1, a storage elastic modulus of the toner at the temperature T1 (G′(T1)) satisfies a relationship of 5.00×107≦G′(T1)≦1.00×109 (dN/m2); (2) a continuous temperature range with a width of 15° C. or more in which the loss tangent (tan δ) is 0.80 to 2.00 is present in the temperature range of 50 to 80° C.; and (3) the loss tangent (tan δ) is 1.00 or more in a temperature range of 120 to 160° C.

摘要翻译： 本发明提供的是包含至少包含粘合剂树脂，着色剂和蜡组分的调色剂颗粒和无机细粉末的无磁性调色剂，其中：（1）当温度在50至80℃的温度 其中损耗角正切（tanδ）表示最大值由T1表示，调色剂在温度T1（G'（T1））下的储能弹性模量满足关系：5.00×107＆nlE; G'（T1）＆nlE ; 1.00×109（dN / m2）; （2）在50〜80℃的温度范围内存在宽度为15℃以上的连续温度范围，其中损耗角正切（tanδ）为0.80〜2.00。 和（3）在120〜160℃的温度范围内的损耗角正切（tanδ）为1.00以上。

公开(公告)号：US20090291383A1

公开(公告)日：2009-11-26

申请号：US12511641

申请日：2009-07-29

申请人： Yasukazu Ayaki ,  Atsushi Tani ,  Tsuneyoshi Tominaga

发明人： Yasukazu Ayaki ,  Atsushi Tani ,  Tsuneyoshi Tominaga

IPC分类号： G03G9/08

CPC分类号： G03G9/08795 ,  G03G9/0821 ,  G03G9/08797 ,  G03G9/09314 ,  G03G9/09357

摘要： Toner characterized in that assuming that the glass transition point of the toner measured by a differential scanning calorimeter (DSC) is represented by T1 (° C.), in a micro compression test at T1−10 (° C.), when a load from 0.00 N (0.00 mgf) to 7.85×10−4 N (80.00 mgf) is applied at the intervals of 7.85×10−7 N (0.08 mgf) to a single particle of the toner, the strain value A80a (%) at 7.85×10−4 N is 35.0 to 75.0%; and in a load (x-axis)-strain (y-axis) curve obtained by the micro compression test, the ratio of an area (S1a) of a specific region, relative to an area (S2a) of a specific region, (S1a/S2a), is 1.5 to 3.5.

摘要翻译： 调色剂的特征在于，假设通过差示扫描量热计（DSC）测量的调色剂的玻璃化转变点由T1（℃）表示，在T1-10（℃）的微压缩试验中，当负载 以7.85×10-7N（0.08mgf）的间隔向调色剂的单个颗粒施加0.00N（0.00mgf）至7.85×10-4N（80.00mgf），应变值A80a（％）为7.85×10 -4 N为35.0〜75.0％; 并且在通过微压缩试验获得的负载（x轴） - 应变（y轴）曲线中，特定区域的面积（S1a）相对于特定区域的面积（S2a）的比率（ S1a / S2a）为1.5〜3.5。

公开(公告)号：US07422833B2

公开(公告)日：2008-09-09

申请号：US10380761

申请日：2001-09-27

申请人： Kazu Niwa ,  Fuminari Oyama

发明人： Kazu Niwa ,  Fuminari Oyama

IPC分类号： G03G9/097

CPC分类号： G03G9/09 ,  G03G9/0806 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/08791 ,  G03G9/08797 ,  G03G9/0926 ,  G03G9/09357

摘要： A charge control resin composition for positive or negative charge, which is prepared either by mixing and kneading a charge control resin for positive or negative charge with a colorant, or by mixing and kneading the above combination further with a charge control resin for opposite charge or a charge control resin composition for opposite charge; wherein colorant particles are finely dispersed as desired. The resultant mixture is mixed with a polymerizable monomer to obtain polymerizable monomer composition. Then, the polymerizable monomer composition is dispersed or emulsified in an aqueous dispersion medium containing a dispersion stabilizer, and polymerized to obtain a toner.

摘要翻译： 用于正电荷或负电荷的电荷控制树脂组合物，其通过将用于正电荷或负电荷的电荷控制树脂与着色剂混合和捏合或通过将上述组合进一步与用于相反电荷的电荷控制树脂混合和捏合 用于相反电荷的电荷控制树脂组合物; 其中着色剂颗粒根据需要精细分散。 将所得混合物与可聚合单体混合以获得可聚合单体组合物。 然后，将可聚合单体组合物分散或乳化在含有分散稳定剂的水分散介质中，并聚合以获得调色剂。

公开(公告)号：US20080063970A1

公开(公告)日：2008-03-13

申请号：US11898005

申请日：2007-09-07

申请人： Keiichi KIKAWA ,  Katsuru MATSUMOTO ,  Nobuhiro MAEZAWA

发明人： Keiichi KIKAWA ,  Katsuru MATSUMOTO ,  Nobuhiro MAEZAWA

IPC分类号： G03G9/093

CPC分类号： G03G9/09392 ,  G03G9/09307 ,  G03G9/09314 ,  G03G9/09321 ,  G03G9/09357 ,  G03G9/09371

摘要： A functional particle is manufactured by a method including an aggregating step, a depressurizing step, and a cooling step. In the aggregating step, the functional particle is obtained by flowing a mixed slurry containing a core particle and a shell particle through a coiled pipeline while heating the mixed slurry to a glass transition temperature or higher of the core particle, to deposit the shell particles on the surface of the core particle. In the depressurizing step, the grain size of the functional particle is controlled and the coarse particle is pulverized to make the grain size of the functional particles uniform. In the cooling step, re-aggregation of the functional particles with unified grain size is prevented.

摘要翻译： 通过包括聚集步骤，减压步骤和冷却步骤的方法制造功能颗粒。 在聚集工序中，通过使含有核粒子和壳粒子的混合浆料通过盘绕管道流动，同时将混合浆料加热至芯粒子的玻璃化转变温度以上，将壳粒子沉积在 核心颗粒的表面。 在减压步骤中，控制功能粒子的粒径，将粗粒子粉碎，使功能粒子的粒径均匀。 在冷却步骤中，防止了具有统一粒度的功能粒子的再聚集。