| abstract |
At least 3 deniers and at least 50,000 total deniers per filament, or at least 6 deniers and at least 40,000 total deniers per filament for use in hollow filters, unpacked filters, or combinations thereof in smoking devices and aerosol generating devices such as electric heated cigarettes. A cellulose acetate tow, bale and filter rod having been disclosed. The cellulose acetate tow may comprise at least 3-6 deniers per filament and may have a total denier of at least 50,000 to 100,000. The cellulose acetate tow contains at least 6-12 deniers per filament and can have a total denier of at least 50,000 to 100,000. The hollow filter may comprise an unpackaged cellulose acetate hollow filter. |