| abstract |
The invention discloses a water vapor-sensitive color-changing ink, which comprises a water-sensitive salt, a pH value indicator, a binding agent and a solvent. The invention also discloses a moisture-sensitive anti-counterfeiting label, which includes an indicator layer, a base layer, a release layer and a first adhesive layer that can be attached to the product; the indicator layer is formed on the base layer, and the base layer is located on the first On the adhesive layer, there is a peeling layer on the first adhesive layer; the indicating layer is printed with ink, and the ink includes water-sensitive salt, pH indicator, binder and solvent. The invention not only solves the problem that the humidity indicating ink is not friendly to the human body, but also solves the problem that the humidity indicating ink is difficult to print, and also solves the problem that the anti-counterfeit color-changing ink can only be screen-printed, and also solves the problem that the anti-counterfeit color-changing ink relies on liquid water. |