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    • 15. 发明授权
    • Dye-donor element with transferable protection overcoat
    • 染料供体元件,具有可转印的保护罩
    • US06346502B1
    • 2002-02-12
    • US09550367
    • 2000-04-19
    • William H. SimpsonJacob J. Hastreiter, Jr.Bruce C. Campbell
    • William H. SimpsonJacob J. Hastreiter, Jr.Bruce C. Campbell
    • B41M5035
    • B41M7/0027B41M5/345Y10S428/913Y10S428/914Y10T428/254
    • A dye-donor element for thermal dye transfer comprising a support having thereon at least one dye layer area comprising an image dye in a binder and another area comprising a transferable protection layer, the transferable protection layer area being approximately equal in size to the dye layer area, wherein the transferable protection layer contains inorganic particles, a polymeric binder and unexpanded synthetic thermoplastic polymeric microspheres, the microspheres having a particle size in the unexpanded condition of from about 5 to about 20 &mgr;m, and which expand to about 20 to about 120 &mgr;m upon application of heat during transfer of the protection layer to an image-receiving layer to provide a matte surface thereon, the transferable protection layer being less than about 1 &mgr;m thick.
    • 一种用于热染料转移的染料供体元件,其包含其上具有至少一个染料层区域的载体,所述至少一个染料层区域包含粘合剂中的图像染料,另一个区域包括可转移保护层,所述可转移保护层区域的尺寸近似等于染料层 区域,其中可转移保护层包含无机颗粒,聚合物粘合剂和未膨胀的合成热塑性聚合物微球,所述微球的未膨胀条件的粒度为约5至约20μm,并且膨胀至约20至约120μm 在将保护层转移到图像接收层以在其上提供无光泽表面时施加热量,可转移保护层小于约1μm厚。