Method for predicting thermal collapse condition and residual puff number in cigarette smoking process

The invention discloses a method for predicting the thermal collapse condition and the remaining smoking number in the cigarette smoking process, a color indication layer is arranged on cigarette forming paper and/or tipping paper, and the color indication layer is a temperature-induced reversible color-changing water-based dye layer. According to the method, the temperature-induced reversible color-changing water-based dye layer is arranged on the cigarette forming paper and/or the tipping paper, and the temperature of the filter stick can be judged through the color change of the temperature-induced reversible color-changing water-based dye layer, so that the thermal collapse condition and the residual smoking number are predicted. The temperature-induced reversible color-changing water-based dye prepared by the preparation method disclosed by the invention is sensitive in color development, and the color is different when the temperature is slightly changed at 70 DEG C and 80 DEG C. In addition, the color-