Mordanting substrates and agents
    2.
    发明公开
    Mordanting substrates and agents 失效
    媒染底物和媒介

    公开(公告)号:EP0771670A1

    公开(公告)日:1997-05-07

    申请号:EP96307894.4

    申请日:1996-10-31

    摘要: A mordanting substrate is provided including a porous substrate, and, distributed within the substrate, a mordanting agent. Preferably, the substrate is a fibrous cellulosic material, and the mordanting agent is a cationic polymer that is soluble in polar solvents, preferably water-soluble. The polar solvent solubility of the polymer, in combination with the porosity and cellulosic nature of the material, has been found to cause the mordanting agent, when imbibed into the substrate in the form of a solution, to bind to fibers within the substrate. This binding in turn allows excellent immobilization of dye within the substrate.

    摘要翻译: 提供包含多孔基材的媒染基材,并且在基材内分布媒染剂。 优选地,底物是纤维状纤维素材料,并且媒染剂是可溶于极性溶剂中的阳离子聚合物,优选水溶性的。 已经发现聚合物的极性溶剂溶解度与材料的孔隙率和纤维素性质相结合导致媒染剂在以溶液形式吸入基材中时与基材内的纤维结合。 这种结合反过来使得染料在基底内优异的固定。