Water based selectable charge magnetic inks
    24.
    发明授权
    Water based selectable charge magnetic inks 失效
    水性可选充电磁性油墨

    公开(公告)号:US4107063A

    公开(公告)日:1978-08-15

    申请号:US773578

    申请日:1977-03-02

    摘要: Water based magnetic colloidal fluids, useable as inks, when prepared by coating chemically precipitated magnetite (Fe.sub.3 O.sub.4) with an adsorption site providing coating agent including certain organic anions, such as sulfates, sulfonates or amino carboxilates, and then dispersing the coated product with non-ionic, anionic or cationic surfactants may exhibit selectably cationic, anionic or non-ionic charge responsiveness.

    摘要翻译: 当通过涂覆化学沉淀的磁铁矿(Fe3O4)的吸附位置提供包括某些有机阴离子(例如硫酸盐,磺酸盐或氨基羧酸盐)的包被剂制备时,可用作油墨的水基磁性胶体液体, 离子,阴离子或阳离子表面活性剂可以显示出选择性的阳离子,阴离子或非离子电荷响应性。