Composite montmorillonite particles for cigarette filter as well as preparation method and application of composite montmorillonite particles

The invention discloses a composite montmorillonite particle for a cigarette filter, a preparation method of the composite montmorillonite particle and application of the composite montmorillonite particle in preparation of a filter element of the cigarette filter. The composite montmorillonite particle for the cigarette filter comprises the following components in percentage by mass: 1-20% of a liquorice extract, 1-20% of a kudzuvine root extract, 0.1-5% of an adhesive and the balance of montmorillonite. The components are fully mixed and granulated to obtain the composite montmorillonite particles, the particles can be added into cigarette filters, compared with common montmorillonite filling materials, the particles have a better adsorption effect on harmful substances in smoke, offensive odor is covered, meanwhile, tobacco fragrance can be enriched and blended, and the tobacco flavor is improved. The smoothness and the comfort of the smoke are improved. The preparation process is simple, mass production i