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    Method and apparatus for forming a multi-colour image
    2.
    发明公开
    Method and apparatus for forming a multi-colour image 失效
    Verfahren und Apparat zur Erzeugung von Vielfarbenbildern

    公开(公告)号：EP0829773A1

    公开(公告)日：1998-03-18

    申请号：EP97202743.7

    申请日：1997-09-05

    申请人： Océ-Technologies B.V.

    发明人： van Sas, Lambertus Maria Leonardus Arnoldus ,  Morelissen, Herbert ,  van Gageldonk, Johannes Franciscus Jozef

    IPC分类号： G03G15/01

    CPC分类号： G03G15/0131 ,  G03G15/0194

    摘要： A method of forming a multi-colour image, wherein colour separation images are generated in a first, second, and possibly subsequent colours, which colour separation images are formed by the use of coloured toner powder, the colour separation images are transferred, in successive image-transfer steps under the influence of pressure, to an elastically deformable adhesive intermediate medium provided with a top layer, and are collected thereon to form a multi-colour image, whereafter the multicolour powder image is softened and transferred under the influence of pressure to a receiving support, wherein between two consecutive image transfer steps the powder image consisting of one or more colour separation images is so deformed on the intermediate medium, under the influence of heat and/or pressure, that the powder image becomes adhesive for toner powder, so that a subsequent colour separation image can be transferred not only to the intermediate medium but also to the powder image already present, wherein the intermediate medium comprises a heat-insulating layer of which the product of the thermal conductivity coefficient λ in J/m sK, the density ρ in kg/m 3 and the specific heat C p in J/kg K has a value less than 2.10 5 .

    摘要翻译： 一种形成多色图像的方法，其中以第一，第二和可能的后续颜色生成颜色分离图像，通过使用有色调色剂粉末形成哪些颜色分离图像，分色图像依次传送 在压力影响下的图像转印步骤到设置有顶层的可弹性变形的粘合剂中间介质，并且被收集在其上以形成多色图像，之后多色粉末图像在压力的影响下软化和转移到 接收支撑件，其中在两个连续的图像转印步骤之间，由一个或多个颜色分离图像组成的粉末图像在热和/或压力的影响下在中间介质上变形，使粉末图像成为调色剂粉末的粘合剂， 使得后续的分色图像不仅可以转移到中间介质，而且可以转移到粉末图像层 其中中间介质包括其绝热层，其导热系数λ在J / m sK中的乘积，kg / m 3的密度rho和J / kg K中的比热Cp的绝热层具有 小于2.10 <5>的值。