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组合防伪指同时使用两种或两种以上的防伪技术,以达到最佳的防伪效果,提高防伪产品的难仿制性和易识别性。例如:人民币20元券新纸币以组合方式采用了水印、安全线、防伪油墨、缩微文字印刷等八种防伪技术,有效地提高了纸币的防伪性能。组合防伪大致可划分为两大类,一类是多功能防伪技术,可研制开发出防伪产品。如自检激光全息防伪标志,揭开表层复合的激光全息膜标志,露出的底层上还有一个图文标志,
Combination of anti-counterfeiting means the use of two or more anti-counterfeiting technology at the same time, in order to achieve the best anti-counterfeiting effect and improve the anti-counterfeiting products, easy imitation and easy identification. For example: RMB 20 yuan notes new bank notes in combination with a watermark, security thread, anti-counterfeit ink, microfilm printing eight kinds of anti-counterfeiting technology, effectively improve the security of banknotes. Combination of anti-counterfeiting can be broadly divided into two categories, one is multi-functional anti-counterfeiting technology, research and development of anti-counterfeiting products. Such as self-test laser holographic anti-counterfeit labels, opened the surface of the composite laser holographic film logo, exposing the bottom there is a graphic logo,