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    • 4. 发明授权
    • Dye-donor element containing transferable protection overcoat
    • 染料供体元件含有可转移的保护罩
    • US06362132B1
    • 2002-03-26
    • US09655589
    • 2000-09-06
    • William H. SimpsonJacob J. Hastreiter, Jr.
    • William H. SimpsonJacob J. Hastreiter, Jr.
    • B41M5035
    • B41M7/0027B41M2205/30Y10T428/24901Y10T428/254
    • 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 microspheres comprising a mixture of low softening point microspheres and high softening point microspheres, the low softening point microspheres having a softening point less than about 105° C., the high softening point microspheres having softening point greater than about 110° C., and the ratio of the low softening point microspheres to the high softening point microspheres being from about 9:1 to about 1:6.
    • 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的情况下施加热量,所述微球包含低软化点微球和高软化点微球的混合物,低软化点微球的软化点小于 约105℃,高软化点微球具有软化点酸性 r低于约110℃,低软化点微球与高软化点微球的比例为约9:1至约1:6。