防伪
6.This paper presents the concept of the "covert codes in the coded speckles", "overt codes in the Moire frinqe", "covert codes in the Moire fringe"and an advanced practical anti - counterfeiting technique which can be used in goods packing directly or in combination with holographic, fluorescent, heating color variable anti - counterfeiting techniques in order to improve the comprehensive anti - counterfeiting performance of current anti - counterfeiting techniques.
8.Patented technology, remarkable rampart, protection by law, more reliable forgery prevention.
9.It can be suitable for anti counterfeit and authentication of commercial bills.
10.Security line design was originally an effective method only in the field of banknote and portfolio making.
