Detail
Several common paper anti-counterfeiting technology
2015-05-12
Paper anti-counterfeiting technology is an important category of anti-counterfeiting technology.The paper anti-counterfeiting technology anti-fake method are many, magnetic anti-counterfeiting paper, digital water marked paper, copy paper, etc.
The first, magnetic anti-counterfeiting paper
The principle of magnetic anti-counterfeiting paper is paper substrate coated with magnetic powder and magnetic particles or make paper will add to the pulp in a specific way, so that the manufacture paper with pulp paper with magnetic.The magnetic paper in to join the part of the magnetic powder feel is different from other ordinary paper, especially by magnetic metal recognizer or magnetic induction device, which can identify and distinguish it from other ordinary paper.Can be used in the production of anti-counterfeit trademarks, anti-counterfeit magnetic charge CARDS and high-end computer recognition magnetic anti-counterfeiting labels on the packaging, and so on.
The Second, the digital water marked paper
Digital watermark technology is used in digital signal processing method of the multimedia data embedding hidden tag, the tag is usually not visible, it is only through a dedicated detector or reader to extract.Can be a word, the product owner ID code, two-dimensional images, audio and video, audio information, random sequence, etc.Is mainly used for copyright protection, identification and tracking copy protection and the media, can also be used for confidential communications, multilingual film systems, additional network access restrictions and media information, etc., is divided in two types: the visible watermark and invisible watermark.Fixed position of the visible watermark can only be used for image, used to identify the ownership of works;Invisible watermarking for visual invisible, mainly used for the identification of the ownership and track the source of art.
Third, the copy paper
Copy prevention is to prevent the original and copy machine out original completely different products, can prevent forgery.The copy is for the purpose of the copy of the text, graphics, information become completely unable to identify the status of the content.According to the anti-counterfeiting technology can be divided into the use of the base paper printing the hidden text, pattern, pattern of copy paper;Use of color characteristics of copy paper;Against the copy paper containing photochromic materials;Against the copy paper containing color-changed materials;Against the copy paper containing photoluminescence materials;Containing fluorescent material of the copy paper;With diffuse light emission of copy paper and using the polarized light of the principle of the copy paper.All three of these paper anti-counterfeiting technology is more common anti-counterfeiting technology, in addition to this, the paper of the anti-counterfeiting technology and thermal anti-counterfeiting paper, photochromic anti-counterfeiting paper, add the filaments, the color point encryption of anti-counterfeiting paper.
