Flashing microtext that, when viewed with the unaided eye, appears to be part of the line design, bet under magnification is seen as a repeated pattern of words, codes or numbers.
通过使用字,来增加防伪特征。闪烁的
字,在没有使用放大镜的情况下,看到的只是
条线,而在使用放大镜观看时,可以看到连续重复的
字、编码及数字等。