Photochromic electrostatic toner compositions
    4.
    发明授权
    Photochromic electrostatic toner compositions 失效
    光致变色静电调色剂组合物

    公开(公告)号:US5759729A

    公开(公告)日:1998-06-02

    申请号:US839533

    申请日:1997-04-14

    IPC分类号: G03G9/09 G03G9/097

    摘要: Disclosed is a toner composition for the development of electrostatic latent images which comprises particles comprising a mixture of a resin and a photochromic material. Another embodiment of the present invention is directed to a liquid developer composition for the development of electrostatic latent images which comprises a nonaqueous liquid vehicle and a photochromic material, wherein the liquid developer has a resistivity of from about 10.sup.8 to about 10.sup.11 ohm-cm and a viscosity of from about 25 to about 500 centipoise. Yet another embodiment of the present invention is directed to a liquid developer composition for the development of electrostatic latent images which comprises a nonaqueous liquid vehicle, a charge control agent, and toner particles comprising a mixture of a resin and a photochromic material.

    摘要翻译: 公开了用于显影静电潜像的调色剂组合物,其包含包含树脂和光致变色材料的混合物的颗粒。 本发明的另一个实施方案涉及一种用于显影静电潜像的液体显影剂组合物,其包含非水液体载体和光致变色材料,其中液体显影剂的电阻率为约108至约1011欧姆 - 厘米, 粘度为约25至约500厘泊。 本发明的另一个实施方案涉及用于显影静电潜像的液体显影剂组合物,其包含非水液体载体,电荷控制剂和包含树脂和光致变色材料的混合物的调色剂颗粒。

    Carbonless paper for electrostatic imaging processes
    6.
    发明授权
    Carbonless paper for electrostatic imaging processes 失效
    用于静电成像过程的无碳纸

    公开(公告)号:US5212040A

    公开(公告)日:1993-05-18

    申请号:US806508

    申请日:1991-12-13

    摘要: Disclosed is a process which comprises incorporating into an electrostatic imaging apparatus a recording sheet comprising a support on one surface of which are situated microcapsules which comprise a shell and a core containing a color former and an oil, said microcapsules being strengthened with polymer capable of degrading upon exposure to actinic radiation; generating an electrostatic latent image on an imaging member in the apparatus; developing the latent image with a developer; transferring the developed image to the recording sheet; and, subsequent to transfer and fusing, exposing the recording sheet to actinic radiation at a wavelength at which the polymer will degrade, thereby rendering the microcapsules subject to rupture upon application of pressure. The process enables the use of carbonless papers in electrostatic imaging apparatuses while preventing premature rupture of the color former microcapsules by pressure exerted within the apparatus and reduces or eliminates contamination of the apparatus as a result of ruptured color former microcapsules.

    摘要翻译: 公开了一种方法,其包括在静电成像设备中并入记录片材,所述记录片材在其一个表面上位于包含壳和包含成色剂和油的核心的微胶囊中,所述微胶囊用能够降解的聚合物加强 暴露于光化辐射时; 在所述装置中的成像构件上产生静电潜像; 用开发者开发潜像; 将显影的图像转印到记录纸上; 并且在转印和熔融之后,将该记录片材暴露于聚合物降解的波长处的光化辐射,从而使微胶囊在施加压力时遭受破裂。 该方法使得能够在静电成像装置中使用无碳纸,同时通过施加在装置内的压力防止成色剂微胶囊的过早破裂,并减少或消除由于破坏的成色剂微胶囊而导致的装置污染。

    Method for embedding and recovering machine-readable information
    7.
    发明授权
    Method for embedding and recovering machine-readable information 失效
    嵌入和恢复机器可读信息的方法

    公开(公告)号:US5710420A

    公开(公告)日:1998-01-20

    申请号:US567786

    申请日:1995-12-05

    IPC分类号: G06K19/06

    摘要: Disclosed is a method of embedding and recovering machine readable information on a substrate which comprises (a) writing data in a predetermined machine readable code format on the substrate with a photochromic marking material having a first state corresponding to a first absorption spectrum and a second state corresponding to a second absorption spectrum; and (b) thereafter effecting a photochromic change in at least some of the photochromic marking material from the first state to the second state.

    摘要翻译: 公开了一种在基板上嵌入和恢复机器可读信息的方法,该方法包括:(a)以具有对应于第一吸收光谱和第二状态的第一状态的光致变色标记材料在基板上以预定的机器可读代码格式写入数据 对应于第二吸收光谱; 和(b)此后,使至少一些光致变色标记材料的光致变色从第一状态变为第二状态。

    Development processes
    10.
    发明授权
    Development processes 失效
    开发流程

    公开(公告)号:US06261732B1

    公开(公告)日:2001-07-17

    申请号:US09420325

    申请日:1999-10-18

    IPC分类号: G03G1510

    摘要: Disclosed is a process for forming images which comprises (a) generating an electrostatic latent image; (b) contacting the latent image with a developer comprising a colorant and a substantial amount of a vehicle with a melting point of at least about 25° C., said developer having a melting point of at least about 25° C., said contact occurring while the developer is maintained at a temperature at or above its melting point, said developer having a viscosity of no more than about 500 centipoise and a resistivity of no less than about 108 ohm-cm at the temperature maintained while the developer is in contact with the latent image; and (c) cooling the developed image to a temperature below its melting point subsequent to development. Specific processes disclosed include electrophoretic development processes, polarizable liquid development processes, and photoelectrophoretic development processes. Optionally, the developed image is transferred to a substrate subsequent to development.

    摘要翻译: 公开了一种用于形成图像的方法,其包括(a)产生静电潜像; (b)使潜像与包含着色剂和大体积的至少约25℃熔点的载体的显影剂接触,所述显影剂具有至少约25℃的熔点,所述接触 当显影剂保持在等于或高于其熔点的温度时,所述显影剂在显影剂接触时保持的温度下具有不超过约500厘泊的粘度和不小于约108欧姆 - 厘米的电阻率 与潜像; 和(c)在显影后将显影图像冷却至低于其熔点的温度。 所公开的具体方法包括电泳显影方法,可极化液体显影方法和光电泳显影方法。 任选地,显影的图像在显影之后转移到基底。