WATER-DISPERSIBLE SHEET FOR CIGARETTE AND CIGARETTE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To produce a cigarette by using a water-dispersible sheet controlled with air permeability by forming a water-dispersible coated layer on at least one face of a water-disaggregating base material containing specific water-dispersible fibers, as filter winding paper or chip paper. SOLUTION: A water-disaggregating base material is obtained by adding water- insoluble powder such as titanium dioxide or water-hardly soluble powder such as calcium carbonate to fiber raw materials for papermaking containing >=20wt.% water- dispersible fibers having fiber dimensions of <=0.45 (1/D)-value, <=60 (L/D)-value and <=95% water retention value such as wood pulp fibers and fibrous carboxymethyl cellulose salt or carboxyethyl cellulose salt, blending and impregnating with an alkali compound such as caustic soda. A water-dispersible coating layer containing <=20 pts.wt. of water-insoluble or water-hardly soluble powder and 1 pt.wt. of a water-soluble polymer such as starch or polyvinyl alcohol is formed on one face or both faces of the water-disaggregating base material to obtain a water-dispersible sheet for cigarette controlled to <=200 cholesta air permeability (by a paper air permeability hand- operating measuring device) or (0-50,000sec/100ml) gas permeability (by an Oken-type gas permeability tester).