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：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.

公开(公告)号：US07097951B2

公开(公告)日：2006-08-29

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.

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％。 在125℃的温度和5kg的负荷下，熔体指数（MI）为0.1至10g / 10min; 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：US06875549B2

公开(公告)日：2005-04-05

申请号：US10117232

申请日：2002-04-08

申请人： Katsuhisa Yamazaki ,  Hirohide Tanikawa ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa ,  Shuhei Moribe

发明人： Katsuhisa Yamazaki ,  Hirohide Tanikawa ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa ,  Shuhei Moribe

IPC分类号： G03G9/08 ,  G03G9/083

CPC分类号： G03G9/081 ,  G03G9/0815 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/0833

摘要： A toner showing a high transferability and suitable for use in cleanerless image forming system is formed of toner particles comprising at least a binder resin and magnetic iron oxide. The toner is characterized by a specific circularity distribution relative to its weight-average particle size and a controlled degree of surface-exposed magnetic iron oxide providing an extract solution with hydrochloric acid showing an absorbance of 1.0-2.5 at a wavelength of 340 nm. The toner is suitably produced by a production system including a rotary mechanical pulverizer and a one-pass surface treatment apparatus for continuously applying a mechanical impact force to pulverized toner particles therein.

摘要翻译： 显示高转印性并适用于无清洁器成像系统的调色剂由至少包含粘合剂树脂和磁性氧化铁的调色剂颗粒形成。 调色剂的特征在于相对于其重均粒径具有特定的圆形度分布，并且受控程度的表面暴露的磁性氧化铁提供了在340nm的波长处显示吸光度为1.0-2.5的盐酸的提取溶液。 该调色剂通过包括旋转机械粉碎机和用于将粉碎的调色剂颗粒连续施加机械冲击力的单程表面处理设备的生产系统适当地制造。

公开(公告)号：US6002895A

公开(公告)日：1999-12-14

申请号：US892913

申请日：1997-07-15

申请人： Takashige Kasuya ,  Hiroyuki Suematsu ,  Koichi Tomiyama ,  Hiroshi Yusa ,  Takakuni Kobori ,  Masaichiro Katada

发明人： Takashige Kasuya ,  Hiroyuki Suematsu ,  Koichi Tomiyama ,  Hiroshi Yusa ,  Takakuni Kobori ,  Masaichiro Katada

IPC分类号： G03G9/083 ,  G03G9/087 ,  G03G21/16

CPC分类号： G03G9/0834 ,  G03G9/08795

摘要： A toner is comprised of a composition containing at least a polymer component and a charge control agent. The polymer component contains substantially no tetrahydrofuran (THF)-insoluble matter. The polymer component THF-soluble has a major peak and a minor peak in the specific molecular weight regions in gel permeation chromatography (GPC). The low molecular weight component and high molecular weight component of the polymer component, each of which shows the specific molecular weight region in GPC, have the specific acid values, respectively. The difference between the acid values is in the specific range.

摘要翻译： 调色剂由至少含有聚合物组分和电荷控制剂的组合物组成。 聚合物组分基本上不含四氢呋喃（THF） - 不溶物质。 在凝胶渗透色谱（GPC）中，可溶于THF的聚合物组分在特定分子量区域具有主峰和次峰。 聚合物组分的低分子量组分和高分子量组分分别具有特定的酸值，分别表示GPC中的特定分子量区域。 酸值之间的差异在特定范围内。

公开(公告)号：US5663026A

公开(公告)日：1997-09-02

申请号：US619873

申请日：1996-03-20

申请人： Takashige Kasuya ,  Hiroyuki Suematsu ,  Koichi Tomiyama ,  Hiroshi Yusa ,  Takakuni Kobori ,  Masaichiro Katada

发明人： Takashige Kasuya ,  Hiroyuki Suematsu ,  Koichi Tomiyama ,  Hiroshi Yusa ,  Takakuni Kobori ,  Masaichiro Katada

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G9/09 ,  G03G9/097 ,  G03G15/09

CPC分类号： G03G9/09775 ,  G03G9/0819 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0838 ,  G03G9/091 ,  G03G9/09783

摘要： A magnetic toner is formed from a binder resin and silicon-containing magnetic iron oxide particles. The magnetic toner has a weight-average particle size of at most 13.5 .mu.m, and the magnetic toner has a particle size distribution such that magnetic toner particles having a particle size of at least 12.7 .mu.m are contained in an amount of at most 50 wt. %. The magnetic iron oxide particles have a silicon content of 0.4-2.0 wt. % based on iron, and the magnetic iron oxide particles have an Fe/Si atomic ratio of 1.2-4.0 at the utmost surfaces thereof. Because of the use of such magnetic iron oxide particles having a specifically controlled overall and surface Si contents, the magnetic toner can show stable performances even after standing in a high humidity environment.

摘要翻译： 磁性调色剂由粘合剂树脂和含硅磁性氧化铁颗粒形成。 磁性调色剂具有至多13.5μm的重均粒径，并且磁性调色剂具有使得粒径至少为12.7μm的磁性调色剂颗粒的含量至多为50 重量 ％。 磁性氧化铁颗粒的硅含量为0.4-2.0重量％。 以铁为基准，磁性氧化铁粒子的最表面的Fe / Si原子比为1.2〜4.0。 由于使用具有特定控制的整体和表面Si含量的这种磁性氧化铁颗粒，因此即使在高湿度环境中放置之后，磁性调色剂也能显示出稳定的性能。

公开(公告)号：US07267919B2

公开(公告)日：2007-09-11

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： G03G9/087

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.

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％。 在125℃的温度和5kg的负荷下，熔体指数（MI）为0.1至10g / 10min; 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：US06485875B1

公开(公告)日：2002-11-26

申请号：US09696296

申请日：2000-10-26

申请人： Yuki Karaki ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa

发明人： Yuki Karaki ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa

IPC分类号： G03G9087

CPC分类号： G03G9/08702 ,  G03G9/087 ,  G03G9/08755 ,  G03G9/08795

摘要： A toner is constituted by at least a binder resin, a colorant and a wax. The binder resin has been formed from monomers including a vinyl monomer and polyester-forming monomers containing at least a polybasic carboxylic acid having three or more carboxyl groups or its anhydride, and comprises at least a hybrid resin comprising a vinyl polymer unit and a polyester unit.

摘要翻译： 调色剂由至少粘合剂树脂，着色剂和蜡构成。 粘合剂树脂由包括乙烯基单体和至少含有三个或更多个羧基的多元羧酸或其酸酐的聚酯形成单体的单体形成，并且至少包括含有乙烯基聚合物单元和聚酯单元的混合树脂 。

公开(公告)号：US06300024B1

公开(公告)日：2001-10-09

申请号：US09605755

申请日：2000-06-28

申请人： Hiroshi Yusa ,  Satoshi Yoshida ,  Takashige Kasuya ,  Yuki Karaki

发明人： Hiroshi Yusa ,  Satoshi Yoshida ,  Takashige Kasuya ,  Yuki Karaki

IPC分类号： G03G1301

CPC分类号： G03G9/087

摘要： A toner is principally constituted by a binder resin, a colorant and a wax. The toner has a maximum heat-absorption peak of 60-135° C. as measured by differential scanning calorimetry (DSC). The toner further has a viscoelastic characteristic measured at an angular frequency of the toner of 6.28 rad/sec including: a temperature giving a loss molecules G″ of 3×104 Pa of 90-115° C., a temperature giving a loss modulus G″ of 2×104 Pa of 95-120° C., a temperature giving a loss modulus G″ of 1×104 Pa of 105-135° C., a tan &dgr; (loss modulus G″/storage modulus G′) when G″=1×104-3×104 Pa of 0.6-2.0, a storage modulus at 170° C. (G′ (170° C.)) of 1×102-1×104 Pa, a loss modulus at 170° C. (G″ (170° C.)) of 1×102-1×104 Pa, and a ratio of a tan &dgr; at 170° C. (tan &dgr;170) to a tan &dgr; at 150° C. (tan &dgr;150) (tan &dgr;170/tan &dgr;150) of 1.05-1.6. The toner contains a tetrahydrofuran (THF)-soluble content exhibiting a molecular weight distribution according to gel permeation chromatography (GPC) chromatogram providing a main peak in a molecular weight region of 2,000-30,000 and a ratio (Mw/Mn) of above 100 between weight-average molecular weight (Mw) and number-average molecular weight (Mn). The resultant toner is effective in improving a low-temperature fixability and a high-temperature anti-offset characteristic while retaining an appropriate gloss of a fixed image in a broader temperature range.

摘要翻译： 调色剂主要由粘合剂树脂，着色剂和蜡构成。 通过差示扫描量热法（DSC）测量，调色剂具有60-135℃的最大吸热峰。 调色剂还具有在6.28rad / sec的调色剂的角频率下测量的粘弹特性，包括：具有90-115℃的3×104Pa的损失分子G“的温度，给出损耗模量G' '的2×104Pa的95-120℃，给出1×104Pa的损耗模量G“为105-135℃的温度，当G'为1时，tanδ（损耗模量G”/储能模量G'）， '= 1×104-3×104Pa为0.6-2.0，在170℃下的储能模量（G'（170℃））为1×102-1×104Pa，在170℃的损耗模量（G“（170° （tanδ150）（tanδ150）（tanδ170/tanδ150）为1.05-1.6（tanδ150）（tanδ150）（tanδ150/tanδ150） 。 调色剂含有根据凝胶渗透色谱（GPC）色谱分子量分布的四氢呋喃（THF） - 可溶物含量，其分子量区域为2,000-3,000，主峰分别为 重均分子量（Mw）和数均分子量（Mn）。 所得到的调色剂在保持在更宽的温度范围内的固定图像的适当光泽度的同时有效地提高了低温定影性和高温抗污损特性。

公开(公告)号：US5912101A

公开(公告)日：1999-06-15

申请号：US55317

申请日：1998-04-06

申请人： Yuki Karaki ,  Hiroshi Yusa ,  Takashige Kasuya ,  Kazuo Maruyama ,  Masao Takano

发明人： Yuki Karaki ,  Hiroshi Yusa ,  Takashige Kasuya ,  Kazuo Maruyama ,  Masao Takano

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G13/22

CPC分类号： G03G9/08782 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08795 ,  G03G9/08704 ,  G03G9/09725

摘要： A toner for forming an image has toner particles containing at least a colorant, a binder resin and a wax. The toner has (i) a circularity distribution in which the toner has an average circularity of 0.900 to less than 0.965, contains 20 to 60% by number of particles with a circularity of less than 0.95 and has a mode circularity of 0.90 or more; and (ii) a particle size distribution in which the toner has a circle-equivalent average diameter of 2.0 to 10.0 .mu.m and has at least one peak of frequency by number in the region of a circle-equivalent diameter of 0.6 to 3.0 .mu.m and at least one peak of frequency by number in the region of a circle-equivalent diameter of from more than 3.0 .mu.m to 10.0 .mu.m. The wax has an endothermic main peak as measured by DSC of 60 to 120.degree. C. The binder resin contains THF soluble matter and 0 to 5.0% by weight of THF insoluble matter. The THF soluble matter having a molecular-weight distribution as measured by GPC in which the THF soluble matter has a content (M1) of 5% or less of a component with a molecular weight of less than 50,000, a content (M2) of 20 to 45% of a component with a molecular weight of 50,000 to 500,000, and a content (M3) of 2 to 25% of a component with a molecular weight exceeding 500,000 and the following condition (1) is satisfied:M1.gtoreq.M2>M3 (1)

摘要翻译： 用于形成图像的调色剂具有至少含有着色剂，粘合剂树脂和蜡的调色剂颗粒。 调色剂具有（i）其中调色剂的平均圆形度为0.900至小于0.965的圆形度分布，包含20至60个数量的圆形度小于0.95的颗粒，并且具有0.90以上的模式圆形度; 和（ii）调色剂的圆当量平均直径为2.0〜10.0μm的粒径分布，并且在圆当量直径为0.6〜3.0μm的区域中具有至少一个频数峰值 并且在圆当量直径为3.0μm以上10.0μm以上的区域中，至少存在一个数量以上的峰。 蜡具有通过DSC测量的吸热主峰为60至120℃。粘合剂树脂含有THF可溶物质和0至5.0重量％的THF不溶物质。 通过GPC测定的THF可溶物质，其中THF可溶物质的分子量小于50,000的成分的含量（M1）为5％以下，含量（M2）为20 至45％的分子量为50,000至500,000的组分，并且分子量超过500,000的组分的含量（M3）为2至25％，满足以下条件（1）：M1> = M2 > M3（1）