Tobacco filter materials and tobacco filter as produced by using

Details Tobacco filter materials and tobacco filter as produced by using Tobacco filter materials and tobacco filter as produced by using

1996-10-17

1997-11-25

Millin, Vincent

Tobacco

Smoke separator or treater

Plural diverse elements

131345, 131331, B29C 4422

Patent

active

056901267

ABSTRACT:
A tobacco filter is obtained by shaping a sheet material having a web structure and comprising (1) cellulose acetate or other cellulose ester short staple, and (2) a binder fiber selected from polysaccharides or their derivatives and biodegradable polymers, and having a binding property with respect to the short staple into a rod-form. The fiber (2) includes (2a) an esterified cellulose fiber, (2b) a cellulose fiber coated with a cellulose ester, (2c) a fibrillated cellulose ester fiber having a BET specific surface area of 0.5 to 4.5 m.sup.2 /g, and (2d) a cellulose fiber at least a part of its surface has been water-solubilized. The sheet material may further comprise a wood pulp or other beaten pulps. The proportion of the fiber (1) relative to fiber (2) is such that the former/the latter equals about 30/70 to 98/2 (weight %)

REFERENCES:
patent: 5523036 (1996-06-01), Luke et al.

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