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    PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC TONER
    2.
    发明公开
    PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC TONER 审中-公开
    方法用于生产电照相调色剂

    公开(公告)号：EP2905658A4

    公开(公告)日：2016-05-25

    申请号：EP13844377

    申请日：2013-10-04

    申请人： KAO CORP

    发明人： SHIDAHARA YASUHIRO ,  IKEDA MANATO ,  MIZUHATA HIROSHI ,  SHIMOKUSA KOJI

    IPC分类号： G03G9/087 ,  G03G9/08

    CPC分类号： G03G9/081 ,  G03G9/0804 ,  G03G9/08717 ,  G03G9/08735 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/08797

    摘要： The present invention relates to a process for producing a toner for electrophotography which is capable of suppressing liberation of a wax from a resin binder and exposure of the wax to a surface of respective toner particles in the step of obtaining fused particles upon production of the toner, and reducing a content of fine powders in the toner, and which is characterized by an excellent low-temperature fusing property and an excellent anti-high-temperature offset property. The process for producing a toner for electrophotography according to the present invention includes the following steps 1 to 3: Step 1 of mixing and emulsifying a wax, a resin emulsion containing a resin having an acid value of from 10 to 300 mgKOH/g, and an oxazoline group-containing polymer with each other to obtain a water dispersion of releasing agent particles; Step 2 of mixing and aggregating the water dispersion of the releasing agent particles obtained in the step 1 with a water dispersion of resin particles containing a carboxyl group-containing resin binder to obtain aggregated particles; and Step 3 of fusing the aggregated particles obtained in the step 2 to obtain fused particles.

    BLACK PIGMENT COMPOSITION
    5.
    发明公开
    BLACK PIGMENT COMPOSITION 有权
    黑色颜料成分

    公开(公告)号：EP2956509A1

    公开(公告)日：2015-12-23

    申请号：EP14701294.2

    申请日：2014-01-25

    申请人： CLARIANT INTERNATIONAL LTD

    发明人： HARADA, Daisuke ,  ICHIHARA, Yuya

    IPC分类号： C09B67/22 ,  G03G9/09

    CPC分类号： C09B67/0033 ,  C09B67/0041 ,  G03G9/08717 ,  G03G9/08726 ,  G03G9/08753 ,  G03G9/08755 ,  G03G9/08757 ,  G03G9/08764 ,  G03G9/08773 ,  G03G9/091 ,  G03G9/0914 ,  G03G9/0918 ,  G03G9/0926

    摘要： The invention provides a black pigment composition capable of overcoming the drawbacks of carbon black pigments, which, when used as a toner colorant in particular, is able to reduce color shading over time and improve image qualities through an improvement in charging performances such as charge leakage and the like. The invention also provides a chromatic pigment composition able to reduce and correct the tinge of a carbon black pigment while improving fading stability, when the composition is added to a carbon black composition for electrophotographic toners. The black pigment composition contains, as essential pigments, a pigment P1 having a maximum absorption wavelength λ
    max (nm) within the range of 460 ≤λ
    max ≤ 530 and a half-value wavelength (long wavelength side) of the absorption spectrum of 550 nm or more, and a pigment P2 having a maximum absorption wavelength λ
    max (nm) within the range of 600 ≤ λ
    max ≤ 700, as measured in the form of a dispersion in a solvent (methyl ethyl ketone).

    PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC TONER
    6.
    发明公开
    PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC TONER 审中-公开
    VERFAHREN ZUR HERSTELLUNG EINES ELEKTROFOTOGRAFISCHEN TONERS

    公开(公告)号：EP2905658A1

    公开(公告)日：2015-08-12

    申请号：EP13844377.5

    申请日：2013-10-04

    申请人： Kao Corporation

    发明人： SHIDAHARA, Yasuhiro ,  IKEDA, Manato ,  MIZUHATA, Hiroshi ,  SHIMOKUSA, Koji

    IPC分类号： G03G9/087 ,  G03G9/08

    CPC分类号： G03G9/081 ,  G03G9/0804 ,  G03G9/08717 ,  G03G9/08735 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/08797

    摘要： The present invention relates to a process for producing a toner for electrophotography which is capable of suppressing liberation of a wax from a resin binder and exposure of the wax to a surface of respective toner particles in the step of obtaining fused particles upon production of the toner, and reducing a content of fine powders in the toner, and which is characterized by an excellent low-temperature fusing property and an excellent anti-high-temperature offset property. The process for producing a toner for electrophotography according to the present invention includes the following steps 1 to 3: Step 1 of mixing and emulsifying a wax, a resin emulsion containing a resin having an acid value of from 10 to 300 mgKOH/g, and an oxazoline group-containing polymer with each other to obtain a water dispersion of releasing agent particles; Step 2 of mixing and aggregating the water dispersion of the releasing agent particles obtained in the step 1 with a water dispersion of resin particles containing a carboxyl group-containing resin binder to obtain aggregated particles; and Step 3 of fusing the aggregated particles obtained in the step 2 to obtain fused particles.

    摘要翻译： 本发明涉及一种电子照相用调色剂的制造方法，该方法能够抑制蜡从树脂粘合剂中的脱离，并且在生产调色剂时获得熔融颗粒的步骤中将蜡暴露于各调色剂颗粒的表面 ，并且减少调色剂中细粉末的含量，其特征在于优异的低温熔融性能和优异的抗高温偏移性能。 本发明的电子照相用调色剂的制造方法包括以下步骤1〜3：将蜡混合乳化的工序1，含有酸值为10〜300mgKOH / g的树脂的树脂乳液，以及 含有恶唑啉基的聚合物以获得脱模剂颗粒的水分散体; 将步骤1中获得的脱模剂颗粒的水分散体与包含含羧基的树脂粘合剂的树脂颗粒的水分散体混合并聚集以获得凝集颗粒的步骤2; 和将步骤2中获得的凝集颗粒熔合的步骤3，得到熔融颗粒。

    Electrostatographic toner composition and electrostatographic developer composition
    8.
    发明公开
    Electrostatographic toner composition and electrostatographic developer composition 失效
    Elektrostatographische Tonerzusammensetzung und elektrostatographische Entwicklerzusammensetzung。

    公开(公告)号：EP0022639A1

    公开(公告)日：1981-01-21

    申请号：EP80302229.2

    申请日：1980-07-02

    申请人： XEROX CORPORATION

    发明人： Bolte, Steven B. ,  Knapp, John F. ,  Ims, Dale R. ,  Lewis, Richard B.

    IPC分类号： G03G9/08 ,  C08L27/06

    CPC分类号： G03G9/08731 ,  G03G9/08717

    摘要： An electrostatographic toner composition comprising a colorant and a copolymer of from about 65 mol percent to about 75 mol percent vinyl chloride and from about 25 mol percent to about 35 mol percent of a lower alkyl maleate or fumarate, the copolymer having a number average molecular weight of from about 15,000 to about 25,000 and a weight average molecular weight of from about 45,000 to about 55,000.

    摘要翻译： 一种静电色调调色剂组合物，其包含着色剂和约65mol％至约75mol％氯乙烯和约25mol％至约35mol％的马来酸低级烷基酯或富马酸酯的共聚物，该共聚物具有数均分子量 为约15,000至约25,000，重均分子量为约45,000至约55,000。

    PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC TONER
    9.
    发明授权
    PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC TONER 有权

    公开(公告)号：EP2905658B1

    公开(公告)日：2018-08-01

    申请号：EP13844377.5

    申请日：2013-10-04

    申请人： Kao Corporation

    发明人： SHIDAHARA, Yasuhiro ,  IKEDA, Manato ,  MIZUHATA, Hiroshi ,  SHIMOKUSA, Koji

    IPC分类号： G03G9/087 ,  G03G9/08

    CPC分类号： G03G9/081 ,  G03G9/0804 ,  G03G9/08717 ,  G03G9/08735 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/08797

    摘要： The present invention relates to a process for producing a toner for electrophotography which is capable of suppressing liberation of a wax from a resin binder and exposure of the wax to a surface of respective toner particles in the step of obtaining fused particles upon production of the toner, and reducing a content of fine powders in the toner, and which is characterized by an excellent low-temperature fusing property and an excellent anti-high-temperature offset property. The process for producing a toner for electrophotography according to the present invention includes the following steps 1 to 3: Step 1 of mixing and emulsifying a wax, a resin emulsion containing a resin having an acid value of from 10 to 300 mgKOH/g, and an oxazoline group-containing polymer with each other to obtain a water dispersion of releasing agent particles; Step 2 of mixing and aggregating the water dispersion of the releasing agent particles obtained in the step 1 with a water dispersion of resin particles containing a carboxyl group-containing resin binder to obtain aggregated particles; and Step 3 of fusing the aggregated particles obtained in the step 2 to obtain fused particles.