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    INKJET PRINTING FLUID
    8.
    发明申请
    INKJET PRINTING FLUID 有权
    INKJET印刷油

    公开(公告)号：US20120050380A1

    公开(公告)日：2012-03-01

    申请号：US12871982

    申请日：2010-08-31

    申请人： Catherine A. Falkner ,  Thomas B. Brust ,  Yongcai Wang ,  Hwei-Ling Yau ,  Douglas R. Robello

    发明人： Catherine A. Falkner ,  Thomas B. Brust ,  Yongcai Wang ,  Hwei-Ling Yau ,  Douglas R. Robello

    IPC分类号： B41J2/015 ,  C08L75/04

    CPC分类号： C09D11/322 ,  C09D11/102 ,  C09D11/326

    摘要： An inkjet printing fluid composition including water and a water dispersible polyurethane additive of the general formula of (I) wherein Z is the central portion of a monomer unit that is the polymerization product of a diisocyanate; X1—Y1—X1 represents one or more soft segments wherein Y1 represents the central portion of a unit that is the polymerization product of a diamine or diol prepolymer having a molecular weight of greater than 300 Daltons; W is the central portion of one or more units containing an acid group; X2—Y2—X2 represents one or more hard segments wherein Y2 represents the central portion of a unit that is the polymerization product of a C2-C8 diol or diamine having a molecular weight of less than 250 Daltons; and X1, V and X2 can be the same or different and are an —O— or —N— atom; and further wherein the polyurethane additive has a weight average molecular weight of at least 6,000 Daltons and a sufficient number of acid groups to provide an acid number greater than 35, and the one or more X2—Y2—X2 hard segments are present at from 1 wt % to less than 13 wt % of the polyurethane additive. Also disclosed is a method for printing an inkjet image including I) providing an inkjet printing fluid according to the invention; and II) jetting the inkjet printing fluid in the form of ink drops onto a recording element to form a printed image.

    摘要翻译： 一种喷墨印刷液组合物，其包含水和通式（I）的水分散性聚氨酯添加剂，其中Z是作为二异氰酸酯的聚合产物的单体单元的中心部分; X1-Y1-X1表示一个或多个软链段，其中Y1表示作为分子量大于300道尔顿的二胺或二醇预聚物的聚合产物的单元的中心部分; W是含有酸基的一个或多个单元的中心部分; X2-Y2-X2表示一个或多个硬链段，其中Y2表示作为分子量小于250道尔顿的C2-C8二醇或二胺的聚合产物的单元的中心部分; X1，V和X2可以相同或不同，为-O-或-N-原子; 并且其中所述聚氨酯添加剂具有至少6,000道尔顿的重均分子量和足够数量的酸基以提供大于35的酸值，并且所述一个或多个X2-Y2-X2硬链段存在于1 wt％至小于13wt％的聚氨酯添加剂。 还公开了一种用于印刷喷墨图像的方法，包括：I）提供根据本发明的喷墨印刷液; 和II）将墨滴形式的喷墨打印流体喷射到记录元件上以形成打印图像。