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.
通过使用微,来增加防伪特征。闪烁的微
,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
的
、编码及数
等。