Developer for electrostatic image development and image forming method using the same
    111.
    发明公开
    Developer for electrostatic image development and image forming method using the same 有权
    开发商的静电图像显影和成像方法

    公开(公告)号:EP1162511A2

    公开(公告)日:2001-12-12

    申请号:EP01112989.7

    申请日:2001-06-08

    IPC分类号: G03G9/113 G03G9/107

    摘要: The present invention relates to a developer for electrostatic image development comprising: a toner for electrostatic image development which comprises a resin and a colorant; and a carrier formed by a carrier core material and a resin layer including a resistance control agent which is formed on the surface of the carrier core material, wherein the resin layer of the carrier has a concentration gradient of the resistance control agent toward the thickness direction of the resin layer, a concentration of the resistance control agent is the highest in the vicinity of the carrier core material, and is gradually lowered toward the surface of the resin layer, and the resistance control agent is present on the surface of the resin layer, as well as relates to an image forming method, wherein it comprises a step of developing an electrostatic image at a developing speed of 20 m/min or higher, by means of employing the developer for electrostatic image development. The developer for electrostatic image development of the invention exhibits a stable development and transfer behavior without any variation of triboelectric charging performance, electric resistance, or the like, even when used as a two-component developer, and in addition, affords a printed image with high image quality and high grade without any fogging.

    Toner and image forming method
    112.
    发明公开
    Toner and image forming method 有权
    墨粉和图像形成方法

    公开(公告)号:EP1059568A1

    公开(公告)日:2000-12-13

    申请号:EP00112158.1

    申请日:2000-06-06

    IPC分类号: G03G9/097

    摘要: A toner contains at least a binder resin, a colorant, a wax and an aluminum compound, wherein the binder resin has an acid value of 1 to 40 mgKOH/g; the binder resin contains 2% to 50% by weight of tetrahydrofuran (THF) based on the weight of the binder resin; a tetrahydrofuran-soluble matter of the binder resin has a main peak in a molecular weight range of from 2,000 to 30,000 in a chromatogram by gel permeation chromatography (GPC); and the aluminum compound is a specific aluminum compound of substituted or unsubstituted benzilic acid.

    摘要翻译: 调色剂至少含有粘合剂树脂,着色剂,蜡和铝化合物,其中粘合剂树脂具有1至40mgKOH / g的酸值; 基于粘合剂树脂的重量,粘合剂树脂含有2重量%至50重量%的四氢呋喃(THF) 粘合剂树脂的四氢呋喃可溶性成分通过凝胶渗透色谱法(GPC)在色谱图中具有2,000至30,000的分子量范围内的主峰; 并且铝化合物是取代或未取代的二苯乙醇酸的特定铝化合物。

    Cyclooligosaccharid-Borkomplex
    114.
    发明公开

    公开(公告)号:EP0866076A2

    公开(公告)日:1998-09-23

    申请号:EP98104104.9

    申请日:1998-03-07

    申请人: Clariant GmbH

    IPC分类号: C08B37/16 G03G9/087

    摘要: Cyclosaccharid-Borkomplexe, bestehend aus 1 bis 4 Cyclodextrin-Einheiten und einem Borat-Rest der Formel (I)
    haben gute Ladungssteuereigenschaften und lassen sich hervorragend in Toner-, Pulverlack- und Elektretbindemitteln dispergieren.

    摘要翻译: 环糊精硼酸盐络合物(I)由1-4个环糊精单元和式(II)的硼酸酯基组成; 还要求的是电子照相色调剂,粉末或粉末涂料,其含有0.01-50,优选0.5-20重量%(I),并且通过将(I)均匀地并入通常类型的粘合剂中而产生。

    Charge control agent and toner for developing electrostatic images
    117.
    发明公开
    Charge control agent and toner for developing electrostatic images 失效
    Ladungssteuermittel和Toner zur Entwicklung elektrostatischer Bilder

    公开(公告)号:EP0803780A1

    公开(公告)日:1997-10-29

    申请号:EP97106584.2

    申请日:1997-04-21

    IPC分类号: G03G9/09 G03G9/097 C09B17/00

    摘要: Charge control agent wherein the active ingredient is a nigrosine compound [I] obtained by reacting either C.I. Solvent Black 7 or C.I. Solvent Black 5 and one or more compounds selected from the group consisting of (a) sulfonic acid-series surface-active anionic organic compounds, (b) sulfuric acid ester-series surface-active anionic organic compounds, (c) phosphoric acid ester-series surface-active anionic organic compounds and (d) carboxylic acid-series surface-active anionic organic compounds excepting saturated and unsaturated fatty acids and salts thereof, and toner for developing electrostatic images that comprises a resin for toners, coloring agent and said charge control agent.

    摘要翻译: 电荷控制剂,其中活性成分是苯胺黑化合物,其通过C.I. 溶剂黑7或C.I. 溶剂黑5和一种或多种选自(a)磺酸系表面活性阴离子有机化合物,(b)硫酸酯系表面活性阴离子有机化合物,(c)磷酸酯 - 系列表面活性阴离子有机化合物和(d)除了饱和和不饱和脂肪酸及其盐之外的羧酸系表面活性阴离子有机化合物和用于显影静电图像的调色剂,其包含用于调色剂,着色剂和所述充电控制的树脂 剂。

    Colored thermoplastic resin composition
    118.
    发明公开
    Colored thermoplastic resin composition 失效
    Gefärbtethermoplastische Harzzusammensetzung

    公开(公告)号:EP0803548A2

    公开(公告)日:1997-10-29

    申请号:EP97106739.2

    申请日:1997-04-23

    IPC分类号: C09B69/06 C08K5/00

    摘要: Colored thermoplastic resin composition comprising a transparent thermoplastic resin and a black dye contained therein, wherein said black dye is a black dye obtained by reaction of at least one anionic surfactant selected from the group consisting of

    (a) sulfuric acid ester-series surfactants,
    (b) phosphoric acid ester-series surfactants,
    (C) sulfonic acid-series surfactants and
    (d) carboxylic acid-series surfactants,
    and nigrosine.

    摘要翻译: 含有透明热塑性树脂和黑色染料的着色热塑性树脂组合物,其中所述黑色染料是通过至少一种选自(a)硫酸酯系表面活性剂,( b)磷酸酯系表面活性剂,(C)磺酸系表面活性剂和(d)羧酸系表面活性剂和苯胺黑

    NEGATIVELY CHARGED TONER POWDER FOR USE IN ELECTROSTATOGRAPHY
    120.
    发明授权
    NEGATIVELY CHARGED TONER POWDER FOR USE IN ELECTROSTATOGRAPHY 失效
    负LOADED硒鼓粉Electrostatography

    公开(公告)号:EP0650610B1

    公开(公告)日:1996-10-02

    申请号:EP94915128.6

    申请日:1994-04-25

    IPC分类号: G03G9/087 G03G9/097

    摘要: A dry toner powder the toner particles of which are triboelectrically negatively charged and are suited for development of an electrostatic charge pattern, wherein said toner particles contain: (1) one or more triboelectrically negatively chargeable thermoplastic resins serving as binder having a volume resistivity of at least 1013 Φ-cm, and (2) at least one substance having a volume resistivity lower than the volume resistivity of said binder, and wherein said substance(s) (2) is (are) capable of lowering the volume resistivity of said binder by a factor of at least 3.3 when present in said binder in a concentration of 5 % by weight relative to the weight of said binder, and wherein said toner powder containing particles including a mixture of said ingredients (1) and (2) under triboelectric charging conditions is capable of obtaining an absolute median (q/d) charge/diameter value (x) lower than 10 fC/10 νm but not lower than 1 fC/10 νm, and said toner powder under the same triboelectric charging conditions but free from said substance(s) (2) then has an absolute median q/d value (x) at least 50 % higher than when said substance(s) (2) is (are) present, and wherein the distribution of the charge/diameter values of the individual toner particles is characterized by a coefficient of variation ξ « 0.33.