Near-infrared absorption printing ink for anti-fake identification

The invention relates to near-infrared absorption printing ink for anti-fake identification. The printing ink contains a special infrared absorption material; the special infrared absorption material is designed to have average reflectivity less than 20% within a broad-band near-infrared range of 850nm-1250nm; the reflectivity is converted to absorption rate reaching 80% or more, so that excellent infrared absorption performances are shown. Especially within a band range of 1100nm-1200nm, the infrared absorption material has the highest infrared absorption efficiency; and specifically, the material has a highest infrared absorption peak value within infrared spectrum of 1100nm-1200nm of the material. The peak value is compared with the absorption value in other infrared regions, so that the near-infrared absorption printing ink can be further used for anti-fake identification by virtue of mathematical calculation.