NOVEL CHARACTERIZATION TOOLS FOR TONER ADHESION AND ADHESION DISTRIBUTION
    4.
    发明申请
    NOVEL CHARACTERIZATION TOOLS FOR TONER ADHESION AND ADHESION DISTRIBUTION 有权
    用于粘合剂粘合和粘合分布的新型特征工具

    公开(公告)号:US20100313644A1

    公开(公告)日:2010-12-16

    申请号:US12482154

    申请日:2009-06-10

    IPC分类号: G01N19/04 G03G15/08

    CPC分类号: G01Q60/28

    摘要: A system, method and device for measuring toner performance by randomly applying a toner sample having toner particles to a substrate, and positioning the substrate such that a force may be applied to individual particles of the measuring toner. A rolling resistance or rotation of the individual particles of the measuring toner is measured. The measurements may be analyzed to determine adhesion and distribution properties of individual toner particles of the measuring toner sample.

    摘要翻译: 一种用于通过将具有调色剂颗粒的调色剂样品随机施加到基底来测量调色剂性能的系统,方法和装置,并且将基底定位成可以将力施加到测量调色剂的各个颗粒上。 测量测量调色剂的各个颗粒的滚动阻力或旋转。 可以分析测量以确定测量调色剂样品的各个调色剂颗粒的粘附和分布特性。

    Toner aggregation processes
    9.
    发明授权
    Toner aggregation processes 失效
    调色剂聚合过程

    公开(公告)号:US5525452A

    公开(公告)日:1996-06-11

    申请号:US497988

    申请日:1995-07-03

    IPC分类号: G03G9/08 G03G9/087

    CPC分类号: G03G9/0815 G03G9/0804

    摘要: A process for the preparation of toner compositions comprising (i) preparing a pigment dispersion in water, which dispersion is comprised of a pigment, an ionic surfactant, and optionally a charge control agent;(ii) shearing said pigment dispersion with an aqueous latex or emulsion blend comprised of a nonionic surfactant, resin, and a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant;(iii) heating the above sheared blend below about the glass transition temperature (Tg) of the resin to form electrostatically bound toner size aggregates with a narrow particle size distribution;(iv) heating the electrostatically bound aggregates above about the Tg of the resin, which heating is accomplished at a pH of from about 4.0 to about 6.0 while continuously stirring the electrostatically bound aggregates to form toner particles;(v) washing the toner particles with a basic aqueous solution, which solution is of a pH of from between about 10.0 and about 12.0; and thereafter optionally(iv) separating the toner particles from the emulsion blend containing water by filtration and then drying the toner particles.

    摘要翻译: 一种制备调色剂组合物的方法,包括(i)在水中制备颜料分散体,该分散体由颜料,离子表面活性剂和任选的电荷控制剂组成; (ii)用包含非离子表面活性剂,树脂和抗衡离子表面活性剂的水性胶乳或乳液共混物剪切所述颜料分散体,其电荷极性与所述离子表面活性剂相反; (iii)将上述剪切混合物加热至低于树脂的玻璃化转变温度(Tg),以形成具有窄粒度分布的静电结合的调色剂尺寸聚集体; (iv)将高于约树脂Tg的静电结合聚集体加热,在约4.0至约6.0的pH下进行加热,同时连续搅拌静电结合的聚集体以形成调色剂颗粒; (v)用碱性水溶液洗涤调色剂颗粒,该溶液的pH为约10.0至约12.0; 然后任选地(iv)通过过滤从含有水的乳液共混物中分离调色剂颗粒,然后干燥调色剂颗粒。

    Wax Containing toner aggregation processes
    10.
    发明授权
    Wax Containing toner aggregation processes 失效
    蜡含有调色剂聚集工艺

    公开(公告)号:US5482812A

    公开(公告)日:1996-01-09

    申请号:US344060

    申请日:1994-11-23

    IPC分类号: G03G9/08 G03G9/087

    CPC分类号: G03G9/0804 G03G9/0815

    摘要: A process for the preparation of toner compositions or toner particles comprising:(i) providing an aqueous pigment dispersion comprised of a pigment, an ionic surfactant, and optionally a charge control agent;(ii) providing a wax dispersion comprised of wax, a dispersant comprised of nonionic surfactant, ionic surfactant or mixtures thereof;(iii) shearing a mixture of the wax dispersion and the pigment dispersion with a latex or emulsion blend comprised of resin, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and a nonionic surfactant;(iv) heating the above sheared blend below about the glass transition temperature (Tg) of the resin to form electrostatically bound toner size aggregates with a narrow particle size distribution;(v) adding additional ionic surfactant to the aggregated suspension of (iv) to ensure that no, or minimal additional particle growth of the electrostatically bound toner size aggregates occurs on further increasing the temperature to coalesce the aggregates into toner particles (vi);(vi) heating the mixture of (v) with bound aggregates above about or at the Tg of the resin; and optionally(vii) separating the toner particles from the aqueous slurry by filtration and thereafter optionally washing.

    摘要翻译: 一种制备调色剂组合物或调色剂颗粒的方法,包括:(i)提供由颜料,离子表面活性剂和任选的电荷控制剂组成的水性颜料分散体; (ii)提供由蜡组成的蜡分散体,由非离子表面活性剂,离子表面活性剂或其混合物组成的分散剂; (iii)用由树脂,具有与所述离子表面活性剂的电荷极性相反的电荷极性的抗衡离子表面活性剂和非离子表面活性剂组成的胶乳或乳液共混物来剪切蜡分散体和颜料分散体的混合物; (iv)将上述剪切混合物加热至低于树脂的玻璃化转变温度(Tg),以形成具有窄粒度分布的静电结合的调色剂尺寸聚集体; (v)向(iv)的聚集悬浮液中加入另外的离子表面活性剂,以确保在进一步升高温度以使聚集体聚结成调色剂颗粒(vi)时,静电结合的调色剂尺寸聚集体不会发生或最小的附加颗粒生长。 (vi)将(v)混合物加热至高于树脂Tg或高于Tg的结合聚集体; 并且任选地(vii)通过过滤从调色剂颗粒与含水浆料分离,然后任选地洗涤。