▎ 摘　　要

NOVELTY - The hollow filter rod tube comprises a hollow filter rod tube body and a thermally conductive material, i.e. graphene or boron nitride. The thermally conductive material is coated on the inner wall or the outer wall of the hollow filter rod tube body. The thermally conductive material is dispersed inside the hollow filter rod tube body. The thermally conductive material comprises a binder, i.e. microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, chitosan or agarose. USE - Hollow filter rod tube for heated cigarettes (Claimed). ADVANTAGE - The binder of the thermally conductive material improves the adhesion between the heat-conducting material and the hollow filter rod tube body, and enables obtaining the effect of multi-layer coating, which improves the cooling effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method for a hollow filter rod tube. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a hollow filter rod tube inner surface.