US Patent 10178878 Smoking article including a liquid delivery member and a wrapper

There is provided a smoking article comprising an aerosol forming substrate, a mouthpiece axially aligned with the aerosol forming substrate, a liquid delivery member and a wrapper surrounding at least a portion of the smoking article. The liquid delivery member is disposed in the aerosol forming substrate or in the mouthpiece, and comprises structural material releasably enclosing liquid. The wrapper includes at least one area permeable to the liquid and at least one area impermeable to the liquid. At least a portion of the at least one permeable area is aligned with or downstream of the liquid delivery member. When the liquid is released from the liquid delivery member, the liquid can migrate to the outer surface of the smoking article via the permeable area or areas of the wrapper.