文章摘要
左晓燕,黄敏,李敏,顾烨.基于莫尔现象的印刷品防伪技术[J].包装工程,2016,37(15):35-39.
ZUO Xiao-yan,HUANG Min,LI Min,GU Ye.Anti-counterfeiting Technique of Print Products Based on Moire Phenomenon[J].Packaging Engineering,2016,37(15):35-39.
基于莫尔现象的印刷品防伪技术
Anti-counterfeiting Technique of Print Products Based on Moire Phenomenon
投稿时间:2016-04-16  修订日期:2016-08-10
DOI:
中文关键词: 防伪  光栅  莫尔条纹  印刷加网
英文关键词: anti-counterfeit  grating  Moiré fringe  print screening
基金项目:北京市科技新星计划(Z151100000315076)
作者单位
左晓燕 北京印刷学院北京 102600 
黄敏 北京印刷学院北京 102600 
李敏 北京印刷学院北京 102600 
顾烨 北京印刷学院北京 102600 
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中文摘要:
      目的 利用一个动态的光栅(解码片)与一个静态的光栅(印刷品)产生莫尔条纹来放大隐藏信息,实现信息解码。方法 对莫尔现象的形成和放大原理进行分析,结合印刷加网技术特点,确定影响单、双向隐藏信息的加密参数,用印刷机输出加密样张。结果 得到了印刷加网中的不同网点形状、网点面积率、加网线数和网点角度等参数对信息隐藏效果和解码效果的影响。结论 研究成果中隐藏信息加密参数匹配可以获得良好的解码效果,对防伪图像、印刷条件的适用性较强,为防伪印刷品的制作提供技术支持。
英文摘要:
      In order to combine one dynamic grating (decoding piece) and one static grating (presswork) to produce Moiré fringe which can magnify the hidden information and realize information decoding, this paper analyzed the generation and amplification principle of the moiré phenomenon, determined the encryption parameters for single-information and two-way information hidden information based on features of printing screening, and output the encrypted samples with a printing press. As a result, the influences of different factors such as the dot shape, dot area, screen line number, dot angle on the hiding effect and decoding effect of the information were found out. In conclusion, the matching of encryption parameters for hidden information will achieve favorable decoding effect and will be widely applicable to anti-counterfeit images and printing conditions. Therefore it will provide technical support for the making of anti-counterfeit pressworks.
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