Safety cigarette with paper sleeve remaining unburnt

摘要

The used paper sleeve of the cigarette is specially treated with an aqueous solution such that it remains unburnt during smoking to form a protective jacket. Pref. the solution for the impregnation of the paper has a pH value of 6 plus or minus 1, ie 5 to 7, and it is free of poisonous substances. The tobacco is completely burnt without ash formation during combustion and consequent harmful effects. During smoking the cigarette remains at its original length so that dropping of ash, while still glowing, is reduced, thus greatly reducing the danger of fire.