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    Thermally assisted transfer process
    31.
    发明授权
    Thermally assisted transfer process 失效
    热辅助转移过程

    公开(公告)号：US5334477A

    公开(公告)日：1994-08-02

    申请号：US976099

    申请日：1992-11-13

    申请人： Douglas E. Bugner ,  David S. Hays ,  Jeanne E. Kaeding ,  Steven J. Spinelli

    发明人： Douglas E. Bugner ,  David S. Hays ,  Jeanne E. Kaeding ,  Steven J. Spinelli

    IPC分类号： G03G5/05 ,  G03G5/147 ,  G03G7/00 ,  G03G13/16

    CPC分类号： G03G5/0596 ,  G03G13/16 ,  G03G5/0592 ,  G03G5/14791 ,  G03G5/14795 ,  G03G7/0006 ,  G03G7/004

    摘要： A method is provided for non-electrostatically transferring dry toner particles which comprise a toner binder and have a particle size of less than 8 micrometers from the surface of an element to a receiver. The element comprises a conductive substrate and a surface layer which contains an electrically insulating polymeric binder resin matrix which comprises a block copolyester or copolycarbonate having a fluorinated polyether block and the receiver comprises a substrate having a coating of a thermoplastic addition polymer on a surface of the substrate in which the Tg of the polymer is less than approximately 10.degree. C. above the Tg of the toner binder. The method involves contacting the toner particles with the receiver which is heated to a temperature such that the temperature of the thermoplastic polymer coating on the receiver substrate during transfer is at least approximately 15.degree. C. above the Tg of the thermoplastic polymer whereby virtually all of the toner particles are transferred from the surface of the element to the thermoplastic polymer coating on the receiver substrate and the thermoplastic polymer coating is prevented from adhering to the element surface during transfer in the absence of a layer of a release agent on the thermoplastic polymer coating or the element. After transfer, the receiver is separated from the element while the temperature of the thermoplastic polymer coating is maintained above the Tg of the thermoplastic polymer.The method is particularly well suited for providing images having high resolution and low granularity from very small size toner particles.

    摘要翻译： 提供了一种用于非静电转印干调色剂颗粒的方法，所述干调色剂颗粒包含调色剂粘合剂并且具有从元件表面到接收体的小于8微米的粒度。 元件包括导电基底和表面层，其包含电绝缘聚合物粘合剂树脂基质，其包含具有氟化聚醚嵌段的嵌段共聚酯或共聚碳酸酯，并且所述接收剂包括在基材表面上具有热塑性加聚物涂层的基材 基质，其中聚合物的Tg低于调色剂粘合剂的Tg以上约10℃。 该方法包括将调色剂颗粒与接收器接触，该接收器被加热到​​使得转移期间接收器基底上的热塑性聚合物涂层的温度比热塑性聚合物的Tg高至少约15℃， 调色剂颗粒从元件的表面转移到接收器基底上的热塑性聚合物涂层上，并且在热塑性聚合物涂层不存在剥离剂层的情况下，在转移过程中防止热塑性聚合物涂层粘附到元件表面 或元素。 转移后，将接收器与元件分离，同时热塑性聚合物涂层的温度保持在热塑性聚合物的Tg以上。 该方法特别适用于从非常小尺寸的调色剂颗粒提供具有高分辨率和低粒度的图像。