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    • 2. 发明授权
    • Toner powder and method of forming fixed images
    • 调色粉和形成固定图像的方法
    • US4528257A
    • 1985-07-09
    • US502584
    • 1983-06-09
    • Arie PoldermanJohannes W. H. HandelsJohannes H. Kuit
    • Arie PoldermanJohannes W. H. HandelsJohannes H. Kuit
    • G03G9/08G03G9/087G03G13/08G03G15/08G03G9/14
    • G03G9/08797G03G9/08788
    • Toner powder the particles of which are composed of thermoplastic resin, coloring material and possibly other additives such as magnetically attractable material comprises as the principal resin a thermoplastic polymer containing in its molecule one or more each of mutually immiscible crystalline and amorphous polymeric blocks, the crystalline blocks forming the continuous phase in the polymer and having a melting point between 45.degree. and 90.degree. C. and the amorphous blocks having a Tg at least 10.degree. C. above the melting point of the crystalline blocks. The toner powder is especially beneficial for use in a method of transferring and fixing powder images in which an image formed of the powder is softened by heating it on a medium having less surface adhesivity for the softened powder than has the image receiving material and the softened powder on this medium is brought into pressure-contact with substantially unheated image receiving material.
    • 其粉末颗粒由热塑性树脂,着色材料和可能的其它添加剂如磁吸引材料组成的粉末粉末包括作为主要树脂的热塑性聚合物,其在分子中含有一个或多个互不混溶的结晶和无定形聚合物嵌段,所述结晶 在聚合物中形成连续相的块,其熔点在45-90℃之间,非晶块的Tg在结晶块的熔点以上至少10℃。 调色剂粉末特别有益于转印和固定粉末图像的方法,其中通过将粉末形成的图像加热到具有比图像接收材料和软化的粉末的软化粉末更少的表面粘附性的介质上来软化 该介质上的粉末与基本上未加热的图像接收材料进行压力接触。