現像装置、電子写真画像形成装置
    2.
    发明申请
    現像装置、電子写真画像形成装置 审中-公开
    开发设备和电子摄影图像形成设备

    公开(公告)号:WO2009104501A1

    公开(公告)日:2009-08-27

    申请号:PCT/JP2009/052254

    申请日:2009-02-04

    CPC classification number: G03G9/0833 G03G9/0835 G03G2215/0609

    Abstract: 休止時間を設けた不連続な印字モードにおいても、画像濃度の変動を抑制することが出来る現像装置を提供する。該現像装置は、感光ドラムに形成された静電潜像を現像する現像剤と、該現像剤を担持・搬送する現像剤担持体と、該現像剤担持体に担持・搬送された現像剤の量を規制するために該現像剤担持体に近接して配置された現像剤層厚規制手段を少なくとも有する。該現像剤として、結着樹脂及び磁性酸化鉄粒子を少なくとも含有する磁性トナー粒子を有し、かつ、特定の飽和磁化、重量平均粒径および組成を有する負帯電性の一成分磁性トナーを用いる。該現像剤担持体として、バインダー樹脂と、第4級アンモニウム塩と、黒鉛化粒子と、導電性球状樹脂粒子とを含む表面層を具備し、かつ、特定の表面形状を有する現像剤担持体を用いる。

    Abstract translation: 公开了一种显影装置,即使在具有休止期的不连续打印模式中也能够抑制图像浓度的波动。 显影装置至少包括用于显影形成在感光鼓上的静电潜像的显影剂,用于支撑和输送显影剂的显影剂载体,以及设置在显影剂载体附近的显影剂层厚度控制装置,用于控制 在显影剂载体上负载和运送的显影剂的量。 显影剂是可负电荷的单组分磁性调色剂,其包含至少含有粘合剂树脂和磁性氧化铁颗粒并具有特定饱和磁化强度,重均粒径和组成的磁性调色剂颗粒。 显影剂载体具有包含粘合剂树脂,季铵盐,石墨化颗粒和导电性球形树脂颗粒的表面层,并且具有比表面形状。

    現像方法及び現像装置
    3.
    发明申请
    現像方法及び現像装置 审中-公开
    发展和开发设备的方法

    公开(公告)号:WO2007116537A1

    公开(公告)日:2007-10-18

    申请号:PCT/JP2006/313358

    申请日:2006-06-28

    Abstract: 現像剤を現像剤担持体上に担持し、現像剤の薄層を形成し、潜像担持体上の潜像を現像剤により現像する現像方法を提供する。該現像剤は、結着樹脂及び磁性粉体を含有する磁性トナー粒子からなる。該磁性粉体は、磁場79.6kA/m(1000エルステッド)において、飽和磁化が67.0~75.0Am 2 /kg(emu/g)以下で、残留磁化が4.5Am 2 /kg(emu/g)以下である。該現像剤担持体の導電性被服層の表面形状において、該被覆層の基準面から0.5×r(r:使用するトナーの重量平均粒径(μm))を超える部分を除いた微小凹凸領域の面積Aで区画される領域の表面積をSとした場合、1.00≦S/A≦1.65の関係を満足する。

    Abstract translation: 一种开发方法,包括使显影剂载体在其上携带显影剂,形成显影剂的薄层并利用显影剂在潜像载体上显影任何潜像。 显影剂由含有粘合剂树脂和磁性粉末的磁性调色剂颗粒组成。 该磁性粉末的剩余磁化强度为4.5Am 2 / kg(emu / g)以下,饱和磁化强度为67.0〜75.0Am 2 / kg(emu / g )或以下的磁场为79.6kA / m(1000Oe)。 关于显影剂载体的导电性涂层的表面构造,S表示由微小凹凸区域的区域(A)划分的区域的表面积超过0.5×r(r:重均粒径( μm)从涂层的参考水平,满足1.00 = S / A = 1.65的关系。

    MAGNETIC TONER COMPOSITION HAVING SUPERIOR ELECTRIFICATION HOMOGENEITY
    4.
    发明申请
    MAGNETIC TONER COMPOSITION HAVING SUPERIOR ELECTRIFICATION HOMOGENEITY 审中-公开
    具有超级电气均匀性的磁性碳粉组合物

    公开(公告)号:WO03054633A3

    公开(公告)日:2003-10-16

    申请号:PCT/KR0202405

    申请日:2002-12-20

    Abstract: The present invention relates to a magnetic toner composition, and more particularly to a magnetic toner composition having an improved chargeability and excellent uniform chargeability, and that is capable of reducing a difference in electrostatic charge between a toner remaining in a cartridge or in a developing unit and that of a newly supplied toner. A magnetic toner composition of the present invention comprises magnetic toner particulate comprising a binder resin and a magnetic substance, a conductive fine powder having a specific surface area of 30 to 300 m /g, a hydrophobic silica having a specific surface area of 100 to 240m /g, and an inorganic fine powder having an average diameter of 0.1 to 4.Oµm.

    Abstract translation: 本发明涉及一种磁性调色剂组合物,更具体地说,涉及具有改善的带电性和优异的均匀带电性的磁性调色剂组合物,并且能够减少残留在盒中或显影单元中的调色剂之间的静电电荷的差异 和新提供的调色剂。 本发明的磁性调色剂组合物包括含有粘合剂树脂和磁性物质的磁性调色剂颗粒,比表面积为30-300m 2 / g的导电细粉末,比表面积为 100〜240m 2 / g,平均粒径为0.1〜4.Oμm的无机细粉末。

    POWDER COATED WITH MULTILAYER FILM AND PROCESS FOR PREPARING THE SAME
    5.
    发明申请
    POWDER COATED WITH MULTILAYER FILM AND PROCESS FOR PREPARING THE SAME 审中-公开
    涂有多层薄膜的粉末及其制备方法

    公开(公告)号:WO1997047417A1

    公开(公告)日:1997-12-18

    申请号:PCT/JP1997001942

    申请日:1997-06-06

    Abstract: A process for preparing a powder coated with a multilayer film by coating the surface of a powder of a metal or a metal oxide as a substrate with a plurality of layers of a metal oxide, wherein the metal oxide layer or the like is formed by decomposition of a metal salt as an inexpensive starting material. For this process, the decomposition or the like of a metal salt under the conditions producing an acid or the like as a by-product is conducted so that powder particles are not attacked by the acid or the like. The coated powder is characterized in that at least one layer is formed of a metal hydroxide or a metal oxide formed by the hydrolysis of a metal alkoxide and that a layer overlying the metal hydroxide or metal oxide layer(s) is a coating layer formed of a metal hydroxide or a metal oxide formed by a reaction of a metal salt, for example, neutralization or heat decomposition. The heat treatment of the metal hydroxide layer or the metal oxide layer formed by the hydrolysis of a metal alkoxide causes the layer to be converted to a dense metal oxide layer.

    Abstract translation: 通过用多层金属氧化物涂覆金属或金属氧化物粉末的表面作为基材来制备涂覆有多层膜的粉末的方法,其中通过分解形成金属氧化物层等 的金属盐作为廉价的原料。 对于该方法,进行作为副产物的产生酸等的条件下的金属盐的分解等,使得粉末颗粒不被酸等侵蚀。 涂覆粉末的特征在于,至少一层由金属氢氧化物或通过金属醇盐的水解形成的金属氧化物形成,并且覆盖金属氢氧化物或金属氧化物层的层是由 通过金属盐的反应形成的金属氢氧化物或金属氧化物,例如中和或热分解。 通过金属醇盐的水解形成的金属氢氧化物层或金属氧化物层的热处理使得该层转化为致密的金属氧化物层。

    TONER FORMULATIONS FOR CONTROLLING WAX DISPERSION AND DOMAIN SIZE
    6.
    发明申请
    TONER FORMULATIONS FOR CONTROLLING WAX DISPERSION AND DOMAIN SIZE 审中-公开
    用于控制WAX分散和域大小的调色剂配方

    公开(公告)号:WO2015156813A1

    公开(公告)日:2015-10-15

    申请号:PCT/US2014/033721

    申请日:2014-04-11

    Abstract: Wax dispersion and domain size can be effectively controlled by Incorporating a small amount of a hybrid resin binder and or a wax compatibilizer in the toner formulation. Such toners show smaller wax domain size and improved fusing offset window, fusegrade and filming resistance, and therefore improved print quality and reliability. The hybrid resin contains a polyester unit via condensation reaction and a vinyl-based polymer unit via radical polymerization. The hybrid resin is highly compatible with the polyester resin binder, and at same time, can well accommodate low molecular weight polyolefin waxes in the vinyl polymer entity enabling a desirable smaller wax domain size. The wax compatibilizer is a themoplastic styrenic block copolymer.

    Abstract translation: 可以通过在调色剂配方中加入少量的杂化树脂粘合剂和/或蜡相容剂来有效地控制蜡分散和结晶域尺寸。 这种调色剂显示出较小的蜡区域尺寸和改进的熔合偏移窗口,保险丝和抗成膜性,因此提高了打印质量和可靠性。 混合树脂通过缩合反应含有聚酯单元和通过自由基聚合的乙烯基类聚合物单元。 混合树脂与聚酯树脂粘合剂高度相容,并且同时可以很好地适应乙烯基聚合物实体中的低分子量聚烯烃蜡,从而能够获得理想的较小蜡结构域尺寸。 蜡相容剂是一种发泡性苯乙烯嵌段共聚物。

    MAGNETIC TONER
    7.
    发明申请
    MAGNETIC TONER 审中-公开
    磁性墨粉

    公开(公告)号:WO2015016383A1

    公开(公告)日:2015-02-05

    申请号:PCT/JP2014/070658

    申请日:2014-07-30

    Abstract: A magnetic toner comprising a toner particle containing a styrene resin as a binder resin and a magnetic substance, and a first inorganic fine particle on surface of the toner particle and an organic-inorganic composite fine particle on the surface of the toner particle, wherein the first inorganic fine particle i) contains at least one inorganic oxide fine particle selected from the group consisting of silica fine particle, titanium oxide fine particle and alumina fine particle, with the proviso that the inorganic oxide fine particle contains silica fine particle in an amount of 85 mass% or more based on the total mass of the inorganic oxide fine particle, and ii) has a number-average particle diameter (D1) of 5 nm or more and 25 nm or less, the coverage ratio A of the toner-particle surface with the first inorganic fine particle is 45.0% or more and 70.0% or less.

    Abstract translation: 一种磁性调色剂,其包含含有作为粘合剂树脂的苯乙烯树脂和磁性物质的调色剂颗粒,以及调色剂颗粒表面上的第一无机细颗粒和调色剂颗粒表面上的有机 - 无机复合微粒,其中 第一无机细粒i)含有选自二氧化硅微粒,氧化钛微粒和氧化铝微粒的至少一种无机氧化物微粒,条件是无机氧化物微粒含有二氧化硅微粒, 基于无机氧化物微粒的总质量为85质量%以上,ii)数均粒径(D1)为5nm以上且25nm以下,调色剂颗粒的覆盖率A 第一无机细颗粒的表面为45.0%以上且70.0%以下。

    MAGNETIC TONER
    8.
    发明申请
    MAGNETIC TONER 审中-公开
    磁性墨粉

    公开(公告)号:WO2013115412A1

    公开(公告)日:2013-08-08

    申请号:PCT/JP2013/052786

    申请日:2013-01-31

    Abstract: A magnetic toner includes: magnetic toner particles containing a binder resin and a magnetic body; and inorganic fine particles that are present on the surface of the magnetic toner particles and are not a magnetic iron oxide and magnetic iron oxide particles that are present on the surface of the magnetic toner particles, wherein the inorganic fine particles present on the surface of the magnetic toner particles contain metal oxide fine particles, the metal oxide fine particles containing silica fine particles, and optionally containing titania fine particles and alumina fine particles, and a content of the silica fine particles being at least 85 mass% with respect to a total mass of the silica fine particles, the titania fine particles and the alumina fine particles; when a coverage ratio A(%) is a coverage ratio of the magnetic toner particles' surface by the inorganic fine particles and a coverage ratio B(%) is a coverage ratio of the magnetic toner particles' surface by the inorganic fine particles that are fixed to the magnetic toner particles' surface, the coverage ratio A and B/A satisfy prescribed ranges; and the magnetic iron oxide particles present on the magnetic toner particles' surface are from at least 0.10 mass% to not more than 5.00 mass% with respect to the total amount of the magnetic toner.

    Abstract translation: 磁性调色剂包括:含有粘合剂树脂和磁性体的磁性调色剂颗粒; 以及存在于磁性调色剂颗粒的表面上并且不是存在于磁性调色剂颗粒表面上的磁性氧化铁和磁性氧化铁颗粒的无机细颗粒,其中存在于磁性调色剂颗粒表面上的无机细颗粒 磁性调色剂颗粒含有金属氧化物微粒,含有二氧化硅微粒的金属氧化物微粒,任选地含有二氧化钛微粒和氧化铝微粒,二氧化硅微粒的含量相对于总质量为85质量% 的二氧化硅微粒,二氧化钛微粒和氧化铝微粒; 当覆盖率A(%)是无机细颗粒的磁性调色剂颗粒表面的覆盖率和覆盖率B(%)时,磁性调色剂颗粒表面的无机微粒的覆盖率为 固定在磁性调色剂颗粒表面上,覆盖率A和B / A满足规定范围; 存在于磁性调色剂颗粒表面上的磁性氧化铁颗粒相对于磁性调色剂的总量为至少0.10质量%至不超过5.00质量%。

    MAGNETIC TONER
    9.
    发明申请
    MAGNETIC TONER 审中-公开
    磁性墨粉

    公开(公告)号:WO2013100185A1

    公开(公告)日:2013-07-04

    申请号:PCT/JP2012/084289

    申请日:2012-12-26

    Abstract: The magnetic toner contains magnetic toner particles containing a binder resin and a magnetic body, and inorganic fine particles present on the surface of the magnetic toner particles, wherein the inorganic fine particles present on the surface of the magnetic toner particles comprise metal oxide fine particles, wherein the metal oxide fine particles containing silica fine particles, and a content of the silica fine particles being at least 85 mass% with respect to a total mass of the metal oxide fine particles. In addition, the coverage ratio of the magnetic toner particle surface by the inorganic fine particles resides in a prescribed range for this magnetic toner; the binder resin is a styrene resin; the weight-average molecular weight and radius of gyration of the magnetic toner reside in a prescribed relationship; and the viscosity of the magnetic toner at 110℃ resides in a prescribed range.

    Abstract translation: 磁性调色剂含有含有粘合剂树脂和磁性体的磁性调色剂颗粒和磁性调色剂颗粒表面上存在的无机细颗粒,其中磁性调色剂颗粒表面上存在的无机细颗粒包含金属氧化物细颗粒, 其中所述含有二氧化硅微粒的金属氧化物微粒,所述二氧化硅微粒的含量相对于所述金属氧化物微粒的总质量为85质量%以上。 此外,无机微粒的磁性调色剂颗粒表面的覆盖率在该磁性调色剂的规定范围内; 粘合剂树脂是苯乙烯树脂; 磁性调色剂的重均分子量和回转半径为规定的关系; 磁性调色剂在110℃的粘度在规定范围内。

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