CELLULOSE ACETATE TOW BAND FOR USE IN CIGARETTE FILTER, CIGARETTE FILTER, APPARATUS FOR MANUFACTURING TOW BAND, AND METHOD OF MANUFACTURING TOW BAND
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United States of America Patent
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Issued Date -
Jan 12, 2017
app pub date -
Mar 13, 2014
filing date -
Mar 13, 2014
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Abstract
A cellulose acetate tow band for use in a cigarette filter, in which a filament denier is not less than 5.0 denier, a Feret area of a filament is not less than 0.5, and/or a ratio S/L of a cross-sectional area S of the filament to a cross-sectional peripheral length L of the filament is not less than 5. The filament denier may be not more than 10 denier. The Feret area may be not more than 0.9. The ratio S/L may be not more than 9. In an apparatus for or a method of manufacturing a tow band, round-shaped spinning holes (10) each with a diameter of not less than 50 μm are used. The diameter of each round-shaped spinning hole (10) may be not more than 100 μm.
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