METHOD AND COMPOSITION FOR PRINTING TACTILE MARKS AND SECURITY DOCUMENT FORMED THEREFROM
    3.
    发明申请
    METHOD AND COMPOSITION FOR PRINTING TACTILE MARKS AND SECURITY DOCUMENT FORMED THEREFROM 有权
    打印战术标志的方法和组合及其形成的安全文件

    公开(公告)号:US20110250410A1

    公开(公告)日:2011-10-13

    申请号:US13131781

    申请日:2009-12-21

    摘要: Ultraviolet light-curable deposits are printed onto a substrate in a predetermined pattern to make tactile marks (e.g. Braille-like resin dots) for use by people with impaired vision to, for example, recognize the denominations of banknotes. The deposit demonstrates high adhesion due to: (1) presence of 20-80% (wt.) of a low viscosity acrylate component to provide a substrate-penetrating property; and, (2) 2-30% (wt.) of an adhesion-promoting acid acrylate. The deposit material further includes 1-30% (wt.) of urethane acrylate, 1-30% by weight of reactive diluent, photoinitiator and 1-10% (wt.) of rheological adsorbing additive. Optimally, the adhesion promoter is added after the other components have been mixed with the rheological additive. The printing step may be followed by heating before the curing step to increase penetration of the ink into the substrate. The deposit may comprise a taggant for use as a security feature.

    摘要翻译: 以预定图案将紫外线光固化性沉积物印刷到基板上,以使视觉受损的人使用的触觉标记(例如盲文型树脂点)例如识别纸币的面额。 沉积物表现出高粘附性,原因在于:(1)存在20-80%(重量)的低粘度丙烯酸酯组分以提供底物渗透性; 和(2)2-30%(重量)的粘合促进酸性丙烯酸酯。 沉积材料还包括1-30%(重量)的氨基甲酸酯丙烯酸酯,1-30%重量的反应性稀释剂,光引发剂和1-10%(wt。)的流变吸附添加剂。 最佳地,在其它组分与流变添加剂混合之后加入粘合促进剂。 印刷步骤之后可以在固化步骤之前进行加热以增加油墨渗入基材中。 存款可以包括用作安全特征的标签商。