The invention discloses an anti-counterfeiting code printing method of variable temperature-sensitive ink, and belongs to the technical field of printing anti-counterfeiting. The invention provides a
dynamic data and
temperature response collaborative anti-counterfeiting scheme to solve the problems that an existing anti-counterfeiting code is easy to copy in a static state, and temperature-sensitive ink is single in function and fuzzy in superimposed information. The method comprises the following steps: generating unique
dynamic data through an
encryption algorithm and dividing the unique
dynamic data into a plain
code segment and a hidden
code segment; configuring double-layer temperature-sensitive
printing ink and a low-temperature layer, partially covering the plain code section, and enabling the high-temperature layer to be transparent at normal temperature and to be heated to develop hidden codes; a multi-channel high-precision printing device is adopted to superpose ink
layers step by step, and a protective film is covered after
ultraviolet curing to enhance durability. A user triggers hierarchical display and hiding through temperature, and dynamic data and physical characteristic dual
verification is realized by combining a terminal
verification system. The anti-counterfeiting information capacity is expanded, the problem of information blurring caused by ink
diffusion is solved, high-security scenes such as packages, labels and certificates are compatible, and the anti-counterfeiting strength and the practical value are achieved.