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    • 3. 发明申请
    • FORGERY PREVENTIVE SHEET AND METHOD OF MANUFACTURING SAME
    • 锻造防伪片及其制造方法
    • WO1997034048A1
    • 1997-09-18
    • PCT/JP1997000719
    • 1997-03-07
    • TOKUSHU PAPER MFG. CO., LTD.MURAKAMI, ToruFUJIMOTO, YouichiIWASAKI, Tadahiro
    • TOKUSHU PAPER MFG. CO., LTD.
    • D21H21/42
    • D21F11/08B42D25/29B42D25/355D21F1/44D21H21/42
    • A forgery preventive sheet, in which thread is exposed to window opening portions provided on a surface of the sheet, and which is free of wrinkles even when continuously wound and is excellent in design. The forgery preventive sheet is a two-layer combination paper composed of at least two layers, that is, an outermost paper layer and a paper layer other than the outermost paper layer, the outermost paper layer being provided with spaced window opening portions in a longitudinal direction of the outermost paper layer, the window opening portions being formed therein with watermarks, which include characters or images, the outermost paper layer and the paper layer other than the outermost paper layer having thread interposed therebetween to expose the same in the window opening portions. A ratio between a length (X) of the window opening portions in the longitudinal direction of the sheet and a length (Y) of non-window opening portions positioned between the adjacent window opening portions is made 3:1 to 1:2 whereby wrinkles are surely prevented from generating at the time of winding and the sheet is preferable in design.
    • 一种防伪片材,其中线材暴露于设置在片材表面上的窗口部分,即使在连续卷绕时也没有皱纹,并且设计优良。 防伪片是由至少两层构成的双层组合纸,即最外侧的纸层和除了最外侧的纸层以外的纸层,最外面的纸层在纵向上设有隔开的窗口部 最外面的纸层的方向,窗口部分在其中形成水印,包括字符或图像,最外面的纸层和纸层之外的最外面的纸层具有插入其间的线,以使其在窗口部分露出 。 窗口纵向方向上的窗口部分的长度(X)与位于相邻窗口部分之间的非窗口部分的长度(Y)之间的比率为3:1至1:2,由此皱纹 在卷绕时可靠地防止产生,并且在设计中优选片材。