An overlapped invisible multi-complementary identification two-dimensional code anti-counterfeiting method
A two-dimensional code, multiple technology, applied in the recording medium, instruments, computer parts and other directions used in machines, can solve the problems of inability to fundamentally prevent counterfeit products, difficult and effective anti-counterfeiting, and easy forgery of anti-counterfeiting labels.
Inactive Publication Date: 2019-05-17
BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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[0002] At present, the more common anti-counterfeiting methods are as follows: The first is laser anti-counterfeiting marks, which use laser recessive ink fluorescent ink printing technology to print product logos or special identification patterns into product anti-counterfeiting labels, and the same Similar products use the same label, because the anti-counterfeiting label is easy to forge, and the fake anti-counterfeiting label is used on the counterfeit product, causing the product to be confused, so it is difficult to effectively prevent counterfeiting
The second is the password anti-counterfeiting label. The method adopted is to compile a set of numbers for each product, and the codes of each product are different. The numbers are printed on the labels and covered, and the numbers are stored Into the computer database that can be inquired by consumers. When consumers purchase products, they input the numbers on the logo into the computer database for comparison and identification through telephone or networked computers. The same is true, and the difference is false. Simple, easy to identify, not easy to forge, but in actual use, because the coded data is uniformly generated by the computer and printed on the label
[0003] In summary, the existing anti-counterfeiting methods have certain shortcomings, and thus cannot fundamentally prevent counterfeit products.
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[0044] exist figure 1 , figure 2 with image 3 Among them, the first plain code two-dimensional code image 1 is composed of the first anti-counterfeiting information, and the first plain code two-dimensional code image 1 is complementary divided into the first missing code image 1-1 and the first complementary code image 1-2, and the first The missing code image 1-1 and the first complementary code image 1-2 can complement each other to form a complete first plain code two-dimensional code image 1,
[0045] exist Figure 4 , Figure 5 with Image 6 Among them, the second plain code two-dimensional code image 2 is composed of the second anti-counterfeiting information, and the second plain code two-dimensional code image 2 is complementary divided into a second missing code image 2-1 and a second complementary code image 2-2, and the second The missing code image 2-1 and the second complement image 2-2 can complement each other to form a complete second plain code two-dimen...
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The invention discloses an overlapped invisible multi-complementary identification two-dimensional code anti-counterfeiting method. An anti-counterfeiting printing method comprises the following stepsthat three plain code two-dimensional code images and three secret code two-dimensional code images generated by anti-counterfeiting information are complementary segmented into code-missing images and complemented code images; the code-missing images of the three plain code two-dimensional code images are complementary to form a plain code pseudo two-dimensional code image; the code-missing images of the three secret code two-dimensional code images are complementary to form a secret code pseudo two-dimensional code image; the plain code pseudo two-dimensional code image and the secret codepseudo two-dimensional code image are overlapped and printed on a two-dimensional code image area on a printed product by using homochromatic and heterochromatic color matching ink; a two-dimensionalcode image area of a printed product is provided; the three plain code two-dimensional code images can be respectively generated by using the complement code images of the three plain code two-dimensional code images under visible light, three secret code two-dimensional code images can be respectively generated by using the complement code images of the three secret code two-dimensional code images under infrared light. The method can be used for identifying whether labels, bills, securities and other printed matters have counterfeit infringement rights or not.
Description
Technical field: [0001] The invention relates to an anti-counterfeiting printing method, in particular to an anti-counterfeiting method of overlapping invisible multiple complementary identification two-dimensional codes, which can be used for anti-counterfeiting of various printed products. Background technique: [0002] At present, the more common anti-counterfeiting methods are as follows: The first is laser anti-counterfeiting marks, which use laser recessive ink fluorescent ink printing technology to print product logos or special identification patterns into product anti-counterfeiting labels, and the same Similar products use the same label, because the anti-counterfeiting label is easier to forge, and the fake anti-counterfeiting label is used on the counterfeit product, causing confusion between the authenticity and the fake of the product, so it is difficult to effectively prevent counterfeiting. The second is the password anti-counterfeiting label. The method adop...
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Inventor张立君
OwnerBEIJING INSTITUTE OF GRAPHIC COMMUNICATION