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US 11,589,608 B2Granted
Biodegradable filter with improved taste
AssigneeJT International SA
InventorRyo Kitaoka
Life of this patent
Estimating the term…
Abstract
A filter for a smoking article has improved biodegradability and improved taste during smoking of the smoking article. The filter includes a segment having a filtration substrate including natural cellulose fibres, and a wrapper at least partly surrounding the segment. The filtration substrate contains a composition including an additive for reducing phenols.
Claims14
A filter for a smoking article, the filter comprising:
- a segment comprising a filtration substrate and a composition, wherein the filtrate substrate comprises natural cellulose fibres, and the composition comprises an additive for reducing phenols, and a binder agent for binding the additive to the filtration substrate;
- and
- a wrapper at least partly surrounding the segment,
- wherein the additive for reducing phenols is triacetin and is contained in an amount of between 19 wt. % and 21 wt. % or between 28 wt. % and 32 wt. %, based on a total amount of the filtration substrate and the composition, and
- the binding agent is cellulose acetate and is contained in an amount of between 0.2 wt. % and 5.0 wt. %, based on the total weight of the filtration substrate and the composition.
2 more elements
A method for producing a filter rod, the method comprising the steps of:
- providing a filtration substrate comprising natural cellulose fibres;
- forming the filtration substrate into a continuous rod;
- applying a composition to the filtration substrate, the composition comprising an additive for reducing phenols, and a binder agent for binding the additive to the filtration substrate;
- wrapping the continuous rod with a continuous band of a wrapping material;
- and
- cutting the wrapped continuous rod to obtain filter rods of a predetermined rod length,
- wherein the additive for reducing phenols is triacetin and is contained in an amount of between 19 wt. % and 21 wt. % or between 28 wt. % and 32 wt. %, based on a total amount of the filtration substrate and the composition, and
- the binding agent is cellulose acetate and is contained in an amount of between 0.2 wt. % and 5.0 wt. %, based on the total weight of the filtration substrate and the composition.
5 more elements
Dependencies are inferred from the claim text.