Tobacco treated with a diluent and a barrier material to prevent vapourisation of the diluent during storage

摘要

Treated tobacco (1) for a smoking article, wherein the tobacco (2) carries diluent (3) and barrier material (4). The diluent is applied to the tobacco prior to or simultaneously with the barrier material, wherein the barrier material is substantially found external to the diluent. The barrier material is capable of inhibiting migration of the diluent during storage of the smoking article but allows release of the diluent during smoking of the smoking article.