Method for preparing reconstituted tobacco through secondary coating method

The method comprises the following steps: (1) a primary coating process: adopting a quantitative coating process, transferring a fixed amount of first coating material to a coating roller through quantitative charging, transferring the material to a base material by the coating roller through roller coating, and drying the material subjected to the primary coating process at high temperature to remove excessive moisture; and (2) a secondary coating process: placing the second coating material in a material groove, carrying out secondary coating through a roller coating process, and carrying out low-temperature drying and rolling on the material subjected to secondary coating to obtain the reconstituted tobacco. Quantitative feeding is adopted for first-time coating, the stability of the coating amount from the material head to the material tail is controlled, and therefore the stability of the gram weight index of the cigarette core material is improved, it is guaranteed that the chemical index of the cigaret