Hydrated lime tobacco smoke filter

Abstract

A multi-sectioned filter section for reducing the content of toxic constituents contained in a stream of tobacco smoke. The multi-sectioned filter section is composed of at least one non-fibrous section and at least one fibrous plug section. The multi-sectioned filter section is adaptable for use in tobacco products such as cigarettes, cigars, cigarillos and smoking articles such as tobacco pipes and cigarette and cigar holders.

Description

FIELD OF THE INVENTION [0001] The invention relates generally to a multi-sectioned filter for reducing the level of toxic constituents such as tar, nicotine, carbon monoxide, nitrous oxides and the like that are drawn into the filter during the smoking of a tobacco product or tobacco article. DESCRIPTION OF THE RELATED ART [0002] Tobacco smoke is produced during the burning of a tobacco product such as cigarettes, cigars and cigarillos, and a tobacco article such as cigarette and cigar holders, and tobacco pipes. The long-term harmful effects of tobacco smoke are well known. For instance, cigarette smoking is a leading cause of lung cancer, and the leading cause of cancer death in both men and women in the United States. Worldwide, lung cancer kills over one million people each year. Tobacco smoke contains over 60 carcinogens. These chemicals represent approximately 7 chemical classes (polycyclic aromatic hydrocarbons, arenes, N-nitrosamines, aromatic and heterocyclic aromatic amine...

AI Technical Summary

Benefits of technology

[0008] Accordingly, it is an object of the invention to provide a multi-sectioned filter for reducing the level of toxic constituents such as tar, nicotine, carbon monoxide, nitrous oxides and the like that are drawn into the filter during the smoking of a tobacco product.

[0009] It is another object of the invention to provide such a filter that incorporates a non-toxic, non-combustible and inorganic material that makes the production of such filters more economically and environmentally attractive.

[0011] It is yet another object of the invention to provide such a filter which includes at least one section of calcium hydroxide, i.e., hydrated lime, for the efficient and effective absorption of toxic constituents from the stream of tobacco smoke prior to delivery to the smoker.

Problems solved by technology

The long-term harmful effects of tobacco smoke are well known.

Heretofore, none of the aforementioned prior art systems provide a filter for a tobacco smoking product or tobacco smoking article that effectively reduces the level of toxic constituents in the tobacco smoke stream prior to delivery to the smoker.

The prior art also lacks such a filter that incorporates a non-toxic, non-combustible and inorganic material such as calcium hydroxide, or such a filter whose physical characteristics optimizes its filtration action.

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