公开(公告)号：US08877417B2

公开(公告)日：2014-11-04

申请号：US13186303

申请日：2011-07-19

申请人： Takaaki Kaya ,  Kenji Aoki ,  Ayako Okamoto ,  Atsushi Tani ,  Takashige Kasuya

发明人： Takaaki Kaya ,  Kenji Aoki ,  Ayako Okamoto ,  Atsushi Tani ,  Takashige Kasuya

IPC分类号： G03G9/087 ,  G03G9/08

CPC分类号： G03G9/08755 ,  G03G9/0821 ,  G03G9/08764 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797

摘要： In a toner formed of toner particles which include a colorant, a wax, and a binder resin containing a crystalline resin (a) primarily composed of a polyester, the crystalline resin has an endothermic peak temperature (Tp) in a range of 50° C. to 80° C., and in a viscoelasticity measurement of the toner, G″(Tp−10) is in a range of 5.0×107 to 5.0×108 Pa, G″(Tp+10) is in a range of 5.0×105 to 5.0×106 Pa, and G″(Tp−20), G″(Tp−10), G″(Tp+10), and G″(Tp+30) satisfy specific relationships.

摘要翻译： 在由包含着色剂，蜡和含有主要由聚酯构成的结晶性树脂（a）的粘合剂树脂的调色剂颗粒形成的调色剂中，结晶性树脂的吸热峰值温度（Tp）在50℃ 至80℃，在调色剂的粘弹性测定中，G“（Tp-10）为5.0×10 7〜5.0×10 8 Pa的范围，G”（Tp + 10）为5.0 ×105〜5.0×106Pa，G“（Tp-20），G”（Tp-10），G“（Tp + 10）和G”（Tp + 30）满足特定关系。

公开(公告)号：US20120021349A1

公开(公告)日：2012-01-26

申请号：US13187009

申请日：2011-07-20

申请人： Atsushi Tani ,  Tetsuya Kinumatsu ,  Ayako Okamoto ,  Kenji Aoki ,  Shuntaro Watanabe ,  Takaaki Kaya ,  Takashige Kasuya

发明人： Atsushi Tani ,  Tetsuya Kinumatsu ,  Ayako Okamoto ,  Kenji Aoki ,  Shuntaro Watanabe ,  Takaaki Kaya ,  Takashige Kasuya

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/0821 ,  G03G9/08764 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797

摘要： In differential scanning calorimetry of a toner, regarding a binder resin in the toner, (i) the peak temperature T10 of a maximum endothermic peak (temperature raising rate 10.0° C./min; P10) is 50° C. to 80° C. and the half-width W10 is 2.0° C. to 3.5° C. and (ii) W1, W10, and W20 satisfy that W1/W10 is 0.20 to 1.00 and W20/W10 is 1.00 to 1.50, where the half-width of a maximum endothermic peak (temperature raising rate of 1.0° C./min; P1) is represented by W1 (° C.) and the half-width of a maximum endothermic peak (temperature raising rate of 20.0° C./min; P20) is represented by W20 (° C.).

摘要翻译： 在调色剂的差示扫描量热法中，关于调色剂中的粘合剂树脂，（i）最大吸热峰（升温速度10.0℃/分钟; P10）的峰值温度T10为50℃至80℃ ，并且半宽W10为2.0〜3.5℃，（ii）W1，W10，W20满足W1 / W10为0.20〜1.00，W20 / W10为1.00〜1.50，其中半宽 的最大吸热峰（升温速度为1.0℃/分钟; P1）由W1（℃）表示，最大吸热峰的半峰值（升温速度为20.0℃/分钟; P20）由W20（℃）表示。

公开(公告)号：US20120021348A1

公开(公告)日：2012-01-26

申请号：US13186303

申请日：2011-07-19

申请人： Takaaki Kaya ,  Kenji Aoki ,  Ayako Okamoto ,  Atsushi Tani ,  Takashige Kasuya

发明人： Takaaki Kaya ,  Kenji Aoki ,  Ayako Okamoto ,  Atsushi Tani ,  Takashige Kasuya

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/0821 ,  G03G9/08764 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797

摘要： In a toner formed of toner particles which include a colorant, a wax, and a binder resin containing a crystalline resin (a) primarily composed of a polyester, the crystalline resin has an endothermic peak temperature (Tp) in a range of 50° C. to 80° C., and in a viscoelasticity measurement of the toner, G″(Tp−10) is in a range of 5.0×107 to 5.0×108 Pa, G″(Tp+10) is in a range of 5.0×105 to 5.0×106 Pa, and G″(Tp−20), G″(Tp−10), G″(Tp+10), and G″(Tp+30) satisfy specific relationships.

摘要翻译： 在由包含着色剂，蜡和含有主要由聚酯构成的结晶性树脂（a）的粘合剂树脂的调色剂颗粒形成的调色剂中，结晶性树脂的吸热峰值温度（Tp）在50℃ 至80℃，在调色剂的粘弹性测定中，G“（Tp-10）为5.0×10 7〜5.0×10 8 Pa的范围，G”（Tp + 10）为5.0 ×105〜5.0×106Pa，G“（Tp-20），G”（Tp-10），G“（Tp + 10）和G”（Tp + 30）满足特定关系。

公开(公告)号：US20090186288A1

公开(公告)日：2009-07-23

申请号：US12298755

申请日：2007-04-25

申请人： Junko Hirata ,  Yoshihiro Ogawa ,  Yusuke Hasegawa ,  Kouji Nishikawa ,  Miho Okazaki ,  Takashige Kasuya

发明人： Junko Hirata ,  Yoshihiro Ogawa ,  Yusuke Hasegawa ,  Kouji Nishikawa ,  Miho Okazaki ,  Takashige Kasuya

IPC分类号： G03G9/083

CPC分类号： G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/08755

摘要： The object of the present invention is to provide a magnetic toner enabling an image with high image density and excellent image reproducibility to be obtained, which is excellent in fluidity, charging stability, and charging uniformity, even for long-term use, and also enabling an image whose fogging, ghost, and scattering are suppressed to be obtained. The magnetic toner has at least a binder resin and a magnetic material, where, the magnetic material is an magnetic iron oxide whose dielectric breakdown voltage of the magnetic material is 160 to 1600 V/cm, and the dielectric loss tangent (tan δ) of the magnetic toner at 100 kHz and 40° C. is 2.0×10−3 to 1.0×10−2.

摘要翻译： 本发明的目的是提供一种能够获得具有高图像密度和优异的图像再现性的图像的磁性调色剂，即使长期使用也具有优异的流动性，充电稳定性和充电均匀性，并且还使得 抑制雾化，重影和散射的图像。 磁性调色剂至少具有粘合剂树脂和磁性材料，其中磁性材料是磁性材料的介电击穿电压为160至1600V / cm的磁性氧化铁，介电损耗角正切（tanδ）为 在100kHz和40℃下的磁性调色剂为2.0×10 -3至1.0×10 -2。

公开(公告)号：US07537877B2

公开(公告)日：2009-05-26

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： G03G9/08

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， 并且在孔径范围内测量的不小于1.7nm且不大于300.0nm的总孔体积不大于0.200cm 3 / g。

公开(公告)号：US07470494B2

公开(公告)日：2008-12-30

申请号：US11168506

申请日：2005-06-29

申请人： Junko Nishiyama ,  Yoshihiro Ogawa ,  Yusuke Hasegawa ,  Shinichiro Abe ,  Takashige Kasuya

发明人： Junko Nishiyama ,  Yoshihiro Ogawa ,  Yusuke Hasegawa ,  Shinichiro Abe ,  Takashige Kasuya

IPC分类号： G03G9/083

CPC分类号： G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0838 ,  G03G9/0839 ,  G03G9/08795 ,  G03G9/08797

摘要： According to the present invention, a magnetic toner comprising magnetic toner particles including at least a binder resin and magnetic particles is provided, wherein an isoelectric point of the magnetic particles is pH 4.0 or less, in order to provide a magnetic toner stably having an optimum charged amount regardless of environments so that a high-quality image having high blackness can be formed without causing any ghost phenomenon.

摘要翻译： 根据本发明，提供一种磁性调色剂，其包含至少包含粘合剂树脂和磁性颗粒的磁性调色剂颗粒，其中磁性颗粒的等电点为4.0以下，以便稳定地提供具有最佳的磁性调色剂 充电量，而不管环境如何，从而可以形成具有高黑度的高质量图像而不引起任何重影现象。

公开(公告)号：US07402368B2

公开(公告)日：2008-07-22

申请号：US11681396

申请日：2007-03-02

申请人： Yoshihiro Ogawa ,  Takashige Kasuya ,  Kaori Hiratsuka

发明人： Yoshihiro Ogawa ,  Takashige Kasuya ,  Kaori Hiratsuka

IPC分类号： G03G9/08

CPC分类号： G03G9/09725 ,  B82Y30/00 ,  C01P2004/64 ,  C01P2006/12 ,  C09C1/3081 ,  C09C1/3684 ,  G03G9/09708 ,  G03G9/09716 ,  Y10T428/2995

摘要： Hydrophobic inorganic fine particles characterized by being a mixture of at least small-particle-diameter inorganic fine particles having an average primary particle diameter of 5 to 25 nm and having a maximum peak particle diameter of 20 nm or less and large-particle-diameter inorganic fine particles having an average primary particle diameter which is 1.5 to 100 times the average primary particle diameter of the small-particle-diameter inorganic fine particles; the mixture being a mixture having been treated in the same treating tank to subject both the small-particle-diameter inorganic fine particles and large-particle-diameter inorganic fine particles simultaneously to hydrophobic treatment.

摘要翻译： 疏水性无机细颗粒，其特征在于平均一次粒径为5〜25nm，最大峰值粒径为20nm以下的至少小粒径的无机微粒和大粒径的无机微粒的混合物 平均一次粒径为小粒径无机微粒的平均一次粒径的1.5〜100倍的微粒; 该混合物是在相同处理槽中处理的混合物，同时使小颗粒直径的无机细颗粒和大颗粒直径的无机细颗粒同时进行疏水处理。

公开(公告)号：US20060177753A1

公开(公告)日：2006-08-10

申请号：US11378349

申请日：2006-03-20

申请人： Syuhei Moribe ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa

发明人： Syuhei Moribe ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa

IPC分类号： G03G9/08

CPC分类号： G03G9/09725 ,  G03G5/04 ,  G03G5/0436 ,  G03G5/0514 ,  G03G9/0821 ,  G03G9/083 ,  G03G9/0835 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09783

摘要： A toner of the present invention comprises at least a binder resin comprising as a main component a polyester resin, a wax, and a colorant, in which in case of measuring a wettability of the toner with respect to a mixed solvent of methanol and water in terms of an optical transimittance at an optical wavelength of 780 nm, a methanol concentration of the mixed solvent is in a range of 45 to 65% by volume when an optical transmittance is 80% and 10%, respectively; a melt index (MI) is of 0.1 to 10 g/lO min at a temperature of 125° C. and a load of 5 kg; the toner comparises a resin component insoluble to tetrahydrofuran (THF insoluble component) in an amount of 5 to 40% by mass based on a mass of the binder resin; and the toner comprises a THF soluble component having a main peak in a molecular weight region of 3,000 to 20,000, and has a proportion of a component having a molecular weight of 10,000 or less in the THF soluble component is 50% by mass or more, according to a chromatogram of the THF soluble component measured by gel permeation chromatography. According to the toner of the present invention, it is possible to control lowering of an image density after leaving under a high temperature and high humidity environment, and a decline in the image density due to a charge-rise phenomenon upon low rate printing. Further, the toner has excellent fixing property and high temperature offset characteristic, and occurring of the end-offset is controlled.

摘要翻译： 本发明的调色剂至少包含粘合剂树脂，其包含作为主要成分的聚酯树脂，蜡和着色剂，其中在测量调色剂相对于甲醇和水的混合溶剂的润湿性的情况下 当光学透射率为80％和10％时，光波长为780nm时的混合溶剂的甲醇浓度为45〜65体积％。 熔体指数（MI）在125℃的温度和5kg的负荷下为0.1至10g / 10分钟; 相对于粘合剂树脂的质量，该调色剂比较不溶于四氢呋喃的THF树脂成分（THF不溶成分）的量为5〜40质量％ 调色剂包含分子量为3000〜20,000的主峰的THF可溶成分，THF可溶成分中的分子量为10,000以下的成分的比例为50质量％以上， 根据通过凝胶渗透色谱测量的THF可溶性组分的色谱图。 根据本发明的调色剂，可以控制在高温和高湿度环境下离开之后的图像浓度的降低，以及在低速打印时由于充电 - 上升现象引起的图像浓度的下降。 此外，调色剂具有优异的定影性和高温偏移特性，并且控制了端部偏移的发生。

公开(公告)号：US20060078812A1

公开(公告)日：2006-04-13

申请号：US11168507

申请日：2005-06-29

申请人： Yusuke Hasegawa ,  Yoshihiro Ogawa ,  Shinichiro Abe ,  Junko Nishiyama ,  Takashige Kasuya

发明人： Yusuke Hasegawa ,  Yoshihiro Ogawa ,  Shinichiro Abe ,  Junko Nishiyama ,  Takashige Kasuya

IPC分类号： G03G9/083

CPC分类号： G03G9/08795 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0838 ,  G03G9/0839

摘要： To provide a magnetic toner which is excellent in durability and developability even in the case of being applied to high-speed developing process or being used in a large-capacity process cartridge amount of toner in which is increased, and which has high degree of blackness. Provided is a magnetic toner having magnetic toner particles containing at least a binder resin and magnetic material particles each comprising a predetermined amount of a titanium compound, characterized in that: 1) the magnetic material particles have a predetermined amount of adsorbed moisture at a relative vapor pressure of 50%; and 2) a difference between the amount of moisture adsorbed to the magnetic material particles in an adsorbing process for increasing a relative vapor pressure and the amount of moisture adsorbed to the magnetic material particles in a desorbing process for reducing a relative vapor pressure is reduced.

摘要翻译： 即使在应用于高速显影工艺的情况下也可以提供耐久性和显影性优异的磁性调色剂，或者用于大容量处理盒中的调色剂量增加，且具有高度的黑度 。 本发明提供一种磁性调色剂，其具有含有至少一种粘合剂树脂的磁性调色剂颗粒和各自包含预定量的钛化合物的磁性材料颗粒，其特征在于：1）磁性材料颗粒在相对蒸气中具有预定量的吸附水分 压力50％; 和2）降低相对蒸气压的解吸过程中吸附在相对蒸气压的吸附过程中吸附到磁性材料颗粒上的水分和吸附到磁性材料颗粒的水分之间的差异减小。

公开(公告)号：US20060035163A1

公开(公告)日：2006-02-16

申请号：US11212638

申请日：2005-08-29

申请人： Syuhei Moribe ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa

发明人： Syuhei Moribe ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa

IPC分类号： G03G9/08

CPC分类号： G03G9/09725 ,  G03G5/04 ,  G03G5/0436 ,  G03G5/0514 ,  G03G9/0821 ,  G03G9/083 ,  G03G9/0835 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09783

摘要： A toner of the present invention comprises at least a binder resin comprising as a main component a polyester resin, a wax, and a colorant, in which in case of measuring a wettability of the toner with respect to a mixed solvent of methanol and water in terms of an optical transimittance at an optical wavelength of 780 nm, a methanol concentration of the mixed solvent is in a range of 45 to 65% by volume when an optical transmittance is 80% and 10%, respectively; a melt index (MI) is of 0.1 to 10 g/10 min at a temperature of 125° C. and a load of 5 kg; the toner comparises a resin component insoluble to tetrahydrofuran (THF insoluble component) in an amount of 5 to 40% by mass based on a mass of the binder resin; and the toner comprises a THF soluble component having a main peak in a molecular weight region of 3,000 to 20,000, and has a proportion of a component having a molecular weight of 10,000 or less in the THF soluble component is 50% by mass or more, according to a chromatogram of the THF soluble component measured by gel permeation chromatography. According to the toner of the present invention, it is possible to control lowering of an image density after leaving under a high temperature and high humidity environment, and a decline in the image density due to a charge-rise phenomenon upon low rate printing. Further, the toner has excellent fixing property and high temperature offset characteristic, and occurring of the end-offset is controlled.