Multi-point coding-superimposing overlying technology
A point coding and coding technology, which is applied in key code superposition fields, to achieve the effect of expanding the amount of information, improving coding complexity and security
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Embodiment 1
[0033] Such as figure 1 As shown, the multi-point coding superposition technology of the present invention includes: printing ink 4, original bottom figure 1 , dot code interference layer 2 and effective dot code layer 3, the printing ink 4 generates the original bottom figure 1 , point code interference layer 2 and effective point code layer 3; the effective point code layer 3 covers the original bottom figure 1 ; The dot code interference layer 2 covers the effective dot code layer 3; the printing ink 4 includes common ink and special ink.
[0034] The normal ink contains only one dot-coded layer, the original base figure 1 And point code interference layer 2 does not contain K value, and effective point code layer 3 contains K value; The CMY value interval of described point code interference layer 2 is [93,100], effective point code layer 3 ideal The range of K value is [90,100].
[0035] The carbon element in the K value in ordinary ink can absorb infrared rays, while...
Embodiment 2
[0037] The specialty inks contain multiple layers of dot-coded layers, the original base figure 1 The dot code interference layer 2 does not contain the K value, and the effective dot code layer is printed separately in layers using special inks that can absorb wavelengths.
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