公开(公告)号：US09097998B2

公开(公告)日：2015-08-04

申请号：US13990369

申请日：2011-12-22

申请人： Katsuhisa Yamazaki ,  Shuhei Moribe ,  Daisuke Yoshiba ,  Toru Takahashi ,  Daisuke Tsujimoto ,  Masami Fujimoto

发明人： Katsuhisa Yamazaki ,  Shuhei Moribe ,  Daisuke Yoshiba ,  Toru Takahashi ,  Daisuke Tsujimoto ,  Masami Fujimoto

IPC分类号： G03G9/087 ,  G03G9/08

CPC分类号： G03G9/087 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner is provided which is superior in the long-term storage stability and has high low-temperature fixing properties. In a DSC curve as measured with a differential scanning calorimeter, the toner has a glass transition temperature of not less than 50° C. and not more than 60° C.; and the toner has, in regard to a resin composition contained therein, a difference of not less than 0.060 W/g in heat flow between a point on the curve at a temperature of 40° C. and a baseline in the range exceeding the glass transition temperature; and in viscoelastic characteristics measured at a frequency of 6.28 rad/sec, the toner has a storage elastic modulus (G′40) at a temperature of 40° C. of not less than 7.0×108 Pa and not more than 2.0×109 Pa, and a storage elastic modulus (G′70) at a temperature of 70° C. of not less than 1.0×105 Pa and not more than 1.0×107 Pa.

摘要翻译： 提供了一种调色剂，其长期保存稳定性优异且具有高的低温定影性。 在用差示扫描量热计测量的DSC曲线中，调色剂的玻璃化转变温度不低于50℃且不超过60℃。 并且对于其中所含的树脂组合物，调色剂在温度为40℃的曲线上的点与在超过玻璃的范围内的基线之间的热流中的热流不同为0.060W / g 转变温度; 并且以6.28rad / sec的频率测量的粘弹特性中，调色剂在40℃的温度下的储能弹性模量（G'40）不小于7.0×10 8 Pa且不大于2.0×10 9 Pa ，并且在70℃的温度下的储能弹性模量（G'70）不小于1.0×10 5 Pa且不大于1.0×10 7 Pa。

公开(公告)号：US08501377B2

公开(公告)日：2013-08-06

申请号：US13354092

申请日：2012-01-19

申请人： Toru Takahashi ,  Katsuhisa Yamazaki ,  Shuhei Moribe ,  Daisuke Tsujimoto ,  Masami Fujimoto

发明人： Toru Takahashi ,  Katsuhisa Yamazaki ,  Shuhei Moribe ,  Daisuke Tsujimoto ,  Masami Fujimoto

IPC分类号： G03G9/08

CPC分类号： G03G9/0833 ,  G03G9/0823 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/08755

摘要： Provided is a magnetic toner capable of providing a stable image by suppressing sleeve contamination even under a high-temperature and high-humidity environment and under a normal-temperature and low-humidity environment and further suppressing large-particle fogging caused after the toner is left alone for a week. The magnetic toner contains toner particles, each of which contains a binder resin and a magnetic iron oxide particle, in which the binder resin has a polyester unit, the toner has i) a dielectric loss factor at 40° C. and 100 kHz of 0.50 pF/m or more but 0.90 pF/m or less, and ii) a true specific gravity of 1.50 g/cm3 or more but 1.85 g/cm3 or less.

摘要翻译： 提供一种即使在高温高湿环境下也能在常温低湿环境下即使通过抑制套筒污染来提供稳定图像的磁性调色剂，并且进一步抑制了在调色剂剩余之后引起的大颗粒起雾 独自一个星期。 磁性调色剂含有调色剂颗粒，每个调色剂颗粒含有粘合剂树脂和磁性氧化铁颗粒，其中粘合剂树脂具有聚酯单元，调色剂具有i）在40℃和100kHz的介电损耗系数为0.50 pF / m以上，0.90pF / m以下，ii）真比重为1.50g / cm 3以上，1.85g / cm 3以下。

公开(公告)号：US08057977B2

公开(公告)日：2011-11-15

申请号：US12268504

申请日：2008-11-11

申请人： Syuhei Moribe ,  Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Masami Fujimoto

发明人： Syuhei Moribe ,  Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Masami Fujimoto

IPC分类号： G03G9/08

CPC分类号： G03G9/09708 ,  G03G9/09716 ,  G03G9/09725

摘要： Provide is a toner including toner particles each containing at least a binder resin and a colorant, and an inorganic fine powder, in which the inorganic fine powder has a ratio (A/B) of a total pore volume A measured in a pore diameter range of from 1.9 nm or more and to 8.0 nm or less to a total pore volume B measured in a pore diameter range of from 1.9 nm or more and to 300.0 nm or less of from 0.20 or more and to 1.00 or less, and the total pore volume A is from 1.00×10−2 cm3/g or more and to 1.00 cm3/g or less.

摘要翻译： 提供一种调色剂，其包含各自至少含有粘合剂树脂和着色剂的调色剂颗粒和无机细粉末，其中无机细粉末具有在孔径范围内测量的总孔体积A的比（A / B） 为1.9nm以上且8.0nm以下，在从1.9nm以上至300.0nm以下的孔径范围内测定的总孔体积B为0.20以上至1.00以下， 孔体积A为1.00×10 -2 cm 3 / g以上且1.00cm 3 / g以下。

公开(公告)号：US07842447B2

公开(公告)日：2010-11-30

申请号：US11295230

申请日：2005-12-06

申请人： Katsuhisa Yamazaki ,  Masami Fujimoto ,  Daisuke Yoshiba

发明人： Katsuhisa Yamazaki ,  Masami Fujimoto ,  Daisuke Yoshiba

IPC分类号： G03G9/087

CPC分类号： G03G9/08791 ,  G03G9/0833 ,  G03G9/0837 ,  G03G9/08722 ,  G03G9/08726 ,  G03G9/08733 ,  G03G9/08753 ,  G03G9/08755 ,  G03G9/08786 ,  G03G9/08788 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： To provide a toner which allows low temperature fixation irrespective of the configuration of a fuser, which is excellent in offset resistance, and which provides high image quality at high and low humidities in a stable manner without causing any image defect over time. A toner containing: a binder resin and a colorant; in which the toner contains a THF-soluble component to be dissolved in tetrahydrofuran (THF); the binder resin component contained in the THF-soluble component contains: a vinyl resin unit (I) formed by at least a carboxyl group-containing vinyl resin and an epoxy group-containing vinyl resin and having an epoxy value of 0.001 to 1.000 eq/kg and a polyester unit (II) formed by condensation polymerization of monomers each containing fatty acid having 4 to 12 carbon atoms, aromatic tricarboxylic acid, and ethylene glycol; and the toner has a main peak present in a molecular weight region ranging from 3,000 to 30,000 on the measurement of a molecular weight distribution of the THF-soluble component by gel permeation chromatography (GPC).

摘要翻译： 提供一种调色剂，其允许低温固化，而不考虑耐偏移性优异的定影器的结构，并且以稳定的方式在高和低湿度下提供高图像质量，而不会随时间引起任何图像缺陷。 含有粘合剂树脂和着色剂的调色剂; 其中调色剂含有可溶于四氢呋喃（THF）的THF可溶组分; THF可溶成分中所含的粘合剂树脂成分含有：至少含有羧基的乙烯基树脂和含环氧基的乙烯基树脂形成的乙烯基树脂单元（I），其环氧值为0.001〜1.000eq / kg和通过使含有4〜12个碳原子的脂肪酸的单体的缩聚形成的聚酯单元（II），芳香族三羧酸和乙二醇; 通过凝胶渗透色谱法（GPC）测定THF可溶性成分的分子量分布，调色剂在3000〜30,000的分子量范围内存在主峰。

公开(公告)号：US20080124643A1

公开(公告)日：2008-05-29

申请号：US11947523

申请日：2007-11-29

申请人： Daisuke Yoshiba ,  Katsuhisa Yamazaki ,  Syuhei Moribe ,  Junko Nishiyama ,  Shuichi Hiroko ,  Masami Fujimoto ,  Takashige Kasuya

发明人： Daisuke Yoshiba ,  Katsuhisa Yamazaki ,  Syuhei Moribe ,  Junko Nishiyama ,  Shuichi Hiroko ,  Masami Fujimoto ,  Takashige Kasuya

IPC分类号： G03G9/093

CPC分类号： G03G9/09725 ,  G03G9/0812 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/08786 ,  G03G9/09716 ,  G03G9/09783

摘要： A toner is provided which can stably provide a favorable density stability, line reproducibility and dot reproducibility even in high-speed copying machines, printers and the like which form high resolution latent images over a long period regardless of environmental conditions, and can provide the image quality adaptable to embedded pattern printing, QR code printing and the like. The present invention is characterized in that the toner which includes toner particles including at least a binder resin and a colorant, and a fine silica powder, has a volume median diameter (D50) of not less than 0.70 μm and not more than 3.00 μm, and a total pore volume of not more than 0.200 cm3/g, measured in the range of the pore diameter from not less than 1.7 nm and not more than 300.0 nm.

摘要翻译： 即使在环境条件下长时间形成高分辨率潜像的高速复印机，打印机等中，也可以稳定地提供良好的密度稳定性，线重现性和点再现性的调色剂，并且可以提供图像 质量适应嵌入式图案打印，QR码打印等。 本发明的特征在于，包括至少包含粘合剂树脂和着色剂的调色剂颗粒和二氧化硅微粉的调色剂的体积中值粒径（D50）不小于0.70μm和不大于3.00μm， 并且在孔径的范围内测量的不超过0.200cm 3 / g的总孔体积不小于1.7nm且不大于300.0nm。

公开(公告)号：US20060141380A1

公开(公告)日：2006-06-29

申请号：US11295230

申请日：2005-12-06

申请人： Katsuhisa Yamazaki ,  Masami Fujimoto ,  Daisuke Yoshiba

发明人： Katsuhisa Yamazaki ,  Masami Fujimoto ,  Daisuke Yoshiba

IPC分类号： G03G9/087

CPC分类号： G03G9/08791 ,  G03G9/0833 ,  G03G9/0837 ,  G03G9/08722 ,  G03G9/08726 ,  G03G9/08733 ,  G03G9/08753 ,  G03G9/08755 ,  G03G9/08786 ,  G03G9/08788 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： To provide a toner which allows low temperature fixation irrespective of the configuration of a fuser, which is excellent in offset resistance, and which provides high image quality at high and low humidities in a stable manner without causing any image defect over time. A toner containing: a binder resin and a colorant; in which the toner contains a THF-soluble component to be dissolved in tetrahydrofuran (THF); the binder resin component contained in the THF-soluble component contains: a vinyl resin unit (I) formed by at least a carboxyl group-containing vinyl resin and an epoxy group-containing vinyl resin and having an epoxy value of 0.001 to 1.000 eq/kg and a polyester unit (II) formed by condensation polymerization of monomers each containing fatty acid having 4 to 12 carbon atoms, aromatic tricarboxylic acid, and ethylene glycol; and the toner has a main peak present in a molecular weight region ranging from 3,000 to 30,000 on the measurement of a molecular weight distribution of the THF-soluble component by gel permeation chromatography (GPC).

摘要翻译： 提供一种调色剂，其允许低温固化，而不考虑耐偏移性优异的定影器的结构，并且以稳定的方式在高和低湿度下提供高图像质量，而不会随时间引起任何图像缺陷。 含有粘合剂树脂和着色剂的调色剂; 其中调色剂含有可溶于四氢呋喃（THF）的THF可溶组分; THF可溶成分中所含的粘合剂树脂成分含有：至少含有羧基的乙烯基树脂和含环氧基的乙烯基树脂形成的乙烯基树脂单元（I），其环氧值为0.001〜1.000eq / kg和通过使含有4〜12个碳原子的脂肪酸的单体的缩聚形成的聚酯单元（II），芳香族三羧酸和乙二醇; 通过凝胶渗透色谱法（GPC）测定THF可溶性成分的分子量分布，调色剂在3000〜30,000的分子量范围内存在主峰。

公开(公告)号：US06703176B2

公开(公告)日：2004-03-09

申请号：US10152776

申请日：2002-05-23

申请人： Takeshi Naka ,  Yuichi Mizoo ,  Satoshi Matsunaga ,  Masami Azuma ,  Takashige Kasuya ,  Tadashi Dojo ,  Tsuneo Nakanishi ,  Nene Shibayama ,  Katsuhisa Yamazaki ,  Yusuke Hasegawa

发明人： Takeshi Naka ,  Yuichi Mizoo ,  Satoshi Matsunaga ,  Masami Azuma ,  Takashige Kasuya ,  Tadashi Dojo ,  Tsuneo Nakanishi ,  Nene Shibayama ,  Katsuhisa Yamazaki ,  Yusuke Hasegawa

IPC分类号： G03G9087

CPC分类号： G03G9/0827 ,  G03G9/0802 ,  G03G9/081 ,  G03G9/0817 ,  G03G9/0819

摘要： A toner contains at least a bonding resin and a coloring agent, and has a weight mean particle size from 5 &mgr;m to 12 &mgr;m; not less than 90% by number of particles not less than 3 &mgr;m have a circularity “a” not less than 0.900; a cut ratio Z and a weight mean size X of the toner are related as: cut ratio Z≦5.3×X; and a relationship of particles Y having a circularity of not less than 0.950 and a weight mean size X is Y≧e5.51×X−0.645 where X is 5 to 12 &mgr;m.

摘要翻译： 调色剂至少含有粘合树脂和着色剂，其重均粒径为5〜12μm; 不少于90％的不小于3μm的颗粒具有不小于0.900的圆形度“a”。 调色剂的切割比Z和重量平均尺寸X相关：切割比Z <= 5.3×X; 并且具有不小于0.950的圆形度和重量平均尺寸X的颗粒Y的关系为Y> = e <5.51> xX <-0.645>其中X为5至12μm。

公开(公告)号：US06586151B1

公开(公告)日：2003-07-01

申请号：US09679554

申请日：2000-10-06

申请人： Takeshi Naka ,  Yuichi Mizoo ,  Satoshi Matsunaga ,  Masami Azuma ,  Takashige Kasuya ,  Tadashi Dojo ,  Tsuneo Nakanishi ,  Nene Shibayama ,  Katsuhisa Yamazaki ,  Yusuke Hasegawa

发明人： Takeshi Naka ,  Yuichi Mizoo ,  Satoshi Matsunaga ,  Masami Azuma ,  Takashige Kasuya ,  Tadashi Dojo ,  Tsuneo Nakanishi ,  Nene Shibayama ,  Katsuhisa Yamazaki ,  Yusuke Hasegawa

IPC分类号： G03G908

CPC分类号： G03G9/0827 ,  G03G9/0802 ,  G03G9/081 ,  G03G9/0817 ,  G03G9/0819

摘要： A toner manufacturing method includes grinding and classification to produce a toner containing a binder resin and a colorant with a weight mean particle size of 5 microns to 12 microns and sharp particle density distribution. The toner has a specific circularity, relationship between cut ratio and weight mean size, and relationship between circularity and weight mean size as disclosed in the specification.

摘要翻译： 调色剂制造方法包括研磨和分级以产生包含粘合剂树脂和着色剂的调色剂，其重均粒径为5微米至12微米，并具有尖锐的颗粒密度分布。 调色剂具有特定的圆形度，切割比和重量平均尺寸之间的关系以及圆形度和重量平均尺寸之间的关系，如说明书中所公开的。

公开(公告)号：US06537715B2

公开(公告)日：2003-03-25

申请号：US09912915

申请日：2001-07-26

申请人： Yuichi Mizoo ,  Takeshi Naka ,  Masami Azuma ,  Takashige Kasuya ,  Tadashi Dojo ,  Tsuneo Nakanishi ,  Nene Shibayama ,  Katsuhisa Yamazaki ,  Yusuke Hasegawa

发明人： Yuichi Mizoo ,  Takeshi Naka ,  Masami Azuma ,  Takashige Kasuya ,  Tadashi Dojo ,  Tsuneo Nakanishi ,  Nene Shibayama ,  Katsuhisa Yamazaki ,  Yusuke Hasegawa

IPC分类号： G03G900

CPC分类号： G03G9/0827 ,  G03G9/0819 ,  G03G9/08784

摘要： A toner has toner particles containing at least a binder resin, a colorant and a sulfur-containing compound selected from the group consisting of a sulfur-containing polymer and a sulfur-containing copolymer. The toner has a weight-average particle diameter of from 5 &mgr;m to 12 &mgr;m, and the toner has, in its particles of 3 &mgr;m or larger in diameter, at least 90% by number of particles with a circularity of 0.900 or higher, and has a specific relationship between the cut rate Z and the toner weight-average particle diameter X and a specific relationship between the number-based cumulative value Y of particles with a circularity of 0.950 or higher and the toner weight-average particle diameter X. Also disclosed are an image-forming method and a process cartridge which make use of the toner.

公开(公告)号：US20130252167A1

公开(公告)日：2013-09-26

申请号：US13991348

申请日：2011-12-13

申请人： Shuhei Moribe ,  Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Toru Takahashi ,  Daisuke Tsujimoto ,  Masami Fujimoto

发明人： Shuhei Moribe ,  Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Toru Takahashi ,  Daisuke Tsujimoto ,  Masami Fujimoto

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/08702 ,  G03G9/08788 ,  G03G9/08797

摘要： A toner comprising toner particles, each of which contains a binder resin and a colorant, wherein the binder resin includes a resin having an endothermic peak at a temperature of 55° C. to 120° C. in a DSC curve; the toner has a softening point Tm of 90° C. to 140° C.; in the viscoelastic characteristic of the toner measured at a frequency of 6.28 rad/sec, the storage elastic modulus at a temperature of 180° C. is 1.0×102 Pa to 1.0×104 Pa; in a chart with the temperature on the x-axis and tan δ on the y-axis, tan δ has a peak having a peak top in the range of 50° C. to 70° C.; tan δ (P) at the peak top temperature is 2.0 to 10.0; the ratio of the tan δ (P) at the peak top temperature to tan δ (Tm) at a temperature of Tm (tan δ (P)/tan δ (Tm)) is in the range of 2.5 to 8.0.

摘要翻译： 包含调色剂颗粒的调色剂，每个调色剂颗粒都含有粘合剂树脂和着色剂，其中粘合剂树脂包括在DSC曲线中在55℃至120℃的温度下具有吸热峰的树脂; 调色剂的软化点Tm为90℃至140℃。 在以6.28rad / sec的频率测量的调色剂的粘弹特性中，在180℃的温度下的储能弹性模量为1.0×102Pa至1.0×104Pa; 在具有x轴上的温度和y轴上的tanδ的图表中，tanδ具有峰顶在50℃至70℃的范围内的峰。 峰顶温度下的tanδ（P）为2.0〜10.0; 在Tm温度（tanδ（P）/tanδ（Tm））下，峰顶温度下的tanδ（P）与tanδ（Tm）的比率在2.5〜8.0的范围内。