Cigarette filter material
AssigneeDaicel Chemical Industries, Ltd.
InventorsYuriko Arino, Hiroki Taniguchi
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Abstract
A cigarette filter material is provided which is free from the occurrence of acetic acid odor, even after long-term storage in a hermetically sealed condition, which ensures excellent palatability. This cigarette filter material comprises a fiber assembly composed mainly of cellulose diacetate fibers and, contained therein, 80 to 10,000 ppm of a polyvalent metal salt of an acid selected from among organic and inorganic acids.
Claims11
A fiber composite comprising cellulose diacetate fiber and 80 to 10,000 ppm, based on the weight of the fiber, of a polyvalent metal salt.
A fiber composite comprising cellulose diacetate fiber and 80 to 10,000 ppm, based on the weight of the fiber, of a polyvalent metal salt of an acid selected from the group consisting of oxalic acid, acetic acid, citric acid, malic acid, nitric acid, hydrochloric acid, sulfuric acid and phosphoric acid.
Dependencies are inferred from the claim text.