<p>Cigarettes include a filter element which have a gathered web of paper incorporating a carbonaceous material. The paper is gathered so as to include a plurality of longitudinally extending channels, and the channels provide a cross-sectional void area of about 5 to about 30 percent of the filter element.</p>
申请公布号
EP0532329(A2)
申请公布日期
1993.03.17
申请号
EP19920308252
申请日期
1992.09.10
申请人
R.J. REYNOLDS TOBACCO COMPANY
发明人
ARZONICO, BARBARA;BLAKLEY, RICHARD L.;DUNLAP, SHARON P.;GENTRY, JEFFREY S.;HEGE, KATHY A.;RAKER, MARK L.;SHELAR, GARY R.;WORRELL, GARY W.;PERFETTI, THOMAS A.
