| 摘要 |
FIELD: tobacco industry.SUBSTANCE: tobacco smoke filter or filter element comprising a longitudinally extending core of tobacco smoke filtering material having fully enclosed therewithin at least one pocket of a first additive, which is a frangible capsule or capsules, or one or a plurality of frangible microcapsules; and a wrapper engaged around core, wrapper having a second additive, which is a solid additive adhered to one or more portions of inner face thereof with said wrapper being free of additive around its circumference at one end.EFFECT: smoke filtration.10 cl, 5 dwg |
