Phase change inks and process for the preparation thereof
    4.
    发明授权
    Phase change inks and process for the preparation thereof 有权
    相变油墨及其制备方法

    公开(公告)号:US06878198B1

    公开(公告)日:2005-04-12

    申请号:US10722164

    申请日:2003-11-25

    IPC分类号: C09D11/00

    CPC分类号: C09D11/34

    摘要: Phase change ink compositions comprising (a) an ink carrier comprising a monoamide and a tetra-amide, and (b) pigment particles having oxygen-containing functional groups on the surfaces thereof. Also, processes for preparing a phase change ink which comprise (a) melting a tetra-amide which is solid at about 25° C.; (b) admixing with the molten tetra-amide pigment particles having oxygen-containing functional groups on the surfaces thereof; (c) maintaining the mixture of pigment and tetra-amide at a temperature of at least about 100° C. and at a temperature of no more than about 200° C. for a period sufficient to enable the molten tetra-amide to wet the pigment particle surfaces; (d) subsequent to wetting of the pigment particle surfaces with the molten tetra-amide, adding to the mixture a monoamide; (e) subsequent to addition of the monoamide, subjecting the resulting mixture to high shear mixing; and (f) subsequent to subjecting the mixture to high shear mixing, optionally adding to the mixture additional ink ingredients.

    摘要翻译: 相变油墨组合物,其包含(a)包含单酰胺和四酰胺的油墨载体,和(b)在其表面上具有含氧官能团的颜料颗粒。 另外,制备相变油墨的方法包括(a)在约25℃熔化固体的四酰胺; (b)与表面具有含氧官能团的熔融四酰胺颜料颗粒混合; (c)将颜料和四酰胺的混合物在至少约100℃的温度和不超过约200℃的温度下保持足以使熔融的四酰胺湿润的时间 颜料颗粒表面; (d)在用四酰胺熔融物润湿颜料颗粒表面之后,向混合物中加入单酰胺; (e)在加入单酰胺后,将所得混合物进行高剪切混合; 和(f)在混合物进行高剪切混合之后,任选地向混合物中加入另外的油墨成分。