EA010140B1 - Cigarette filter - Google Patents

Abstract

The invention relates to tobacco industry, in particular, to filters used in tobacco smoking and characterized by a new additive.A claimed cigarette filter comprises filtering sections containing two filtering materials enclosed into wrapping paper, hemosorbent and a storage.The claimed filter absorbs effectively smoke toxic components of smoke main stream, as well as exerting beneficial therapeutic influence on organism.

Description

The invention relates to the tobacco industry, namely, filters used for smoking tobacco, characterized by a new additive.

Currently, cigarettes are produced with various filter rods in order to reduce the amount of harmful substances that enter the body with tobacco smoke and improve organoleptic properties.

A cigarette filter is known, the filter rod of which is made of a porous material, for example, fibrous or foamed cellulose acetate, or any other material suitable for filtering cigarette smoke. The wrapped filter rod is attached to the tobacco rod with a strip of breathable mouthpiece paper. The invention allows to reduce the amount of tar in smoke, thereby decreasing the content of harmful substances in it [USSR patent No. 1382393, 11/15/1987, Charles Grenville Lamb Brown and Williamson Tobeckow Corporation - USA]. The disadvantage of this filter is its low efficiency in the absorption of low molecular weight compounds and resins.

The closest analogue of the claimed invention is a cigarette filter "EBS" [patent ΑΖ I 20010108, bull. No. 4, 2001.12.29], containing a cylindrical porous filter rod, a mechanical filter (injector), activated carbon impregnated filter rod, hemosorbent, closing filter rod, enclosed in breathable wrapping paper that extends along the entire filter. The filter rods are made of a porous material, for example, fibrous or foamed cellulose acetate or any other material suitable for filtering cigarette smoke. Adding adsorbents increases the efficiency of filtering the components of the vapor phase of the mainstream tobacco smoke. A disadvantage of the known technical solution is the deterioration of the taste of tobacco by the smell of coal.

An object of the present invention is to provide a cigarette filter that can effectively filter mainstream tobacco smoke, reduce the negative effect on the taste of a cigarette, and at the same time have a therapeutic effect on the body.

The cigarette filter according to the invention comprises filter sections containing two filter materials enclosed in wrapping paper, a hemosorbent and a burial ground distributed in at least one of the filter materials or in the space between the filter materials, the filter materials being individually wrapped with wrapping paper, and also contains forming paper for wrapping the filter sections together and mouthpiece paper covering the forming paper so as to connect the filter sections to the cigarette section her with a filter cigarette.

The two filter materials can be made of fibrous or foamed cellulose acetate, viscose, vinylon fiber or porous paper used in conventional cigarette filters.

As hemosorbents, modern carbon hemosorbents obtained from plant, mineral or specially selected synthetic polymers are used, as well as composite materials based on activated carbon. These materials include fibers made of polymer materials filled with activated carbon powder. (V.T. Nikolaev. The method of hemocarboperfusion in experiment and clinic. Kiev, Naukova Dumka, 1984, p. 7-12).

An important characteristic of carbon hemosorbents is their porosity. A huge influence on the absorption rate has a particle size. Depending on the pore size, they are divided into 3 groups: micropores, mesopores (or paired) and macropores. Micropores have a diameter of less than 30 A and firmly hold small molecules (nitrogen and carbon oxides). The sizes of meso- and para-pore pores are from 30-3000 A. Macropores with a diameter of 3000-4000 A have low sorption activity, serve mainly as transport channels through which the sorbed substance penetrates the meso- and micropores. In the present invention, all three groups of carbon adsorbents can be used.

Hemosorbents are able to extract from the medium and retain a huge amount of substances with a molecular weight of several tens to several thousand daltons. Among these substances are nitrogen compounds, phenol, indole, mercaptans, organic acids, keto acids. Among the exogenous toxic substances absorbed by carbon adsorbents from tobacco and tobacco products, there are also heavy metal salts, alkaloids, and opiate.

The burial ground (Garmala vulgaris) is a perennial herbaceous plant from the burial families - Redapaseae (in the NTD family of leaf leaves - Ζν§ορ1ιν11αοοαο). growing in the southern regions of the European part of the CIS and Western Siberia, in all states of Central Asia and in Southern Kazakhstan as weed. [P. Revvel, C. Revvel. Our habitat, fourth book, ed. World, p. 5659]. Harmala grass is used as a medicinal raw material. Raw materials are harvested in the phase of budding - the beginning of flowering. Air drying. Shelf life of raw materials is 2 years. All parts of the plant contain alkaloids, derivatives of quinazoline and indole: harmin, harmanin, harmolol, peganin. The alkaloid L-peganin predominates in the budding phase. The fruits contain a total of 3-4% alkaloids, 14-25% fatty oils. The raw materials used to obtain the drug deoxypeganine hydrochloride, possessing

- 010140 th anticholinesterase action. The drug is used for lesions of the peripheral nervous system [J.A. Demirov, D.Zh. Huseynov, Ch.Z. Shukurov. Plants and nature, Baku, Ganjlik, 1992, p. 105]. In Asian medicine, seeds are used as narcotic, antispastic, sleeping pills, antiemetic, anthelmintic. The plant is used in homeopathy. In folk medicine, tea is brewed from the burial ground and used for heart pain, oil is used to treat skin diseases [F. Lemberani. Traditional medicine, ed. Logman, 2000, p. 76].

The essence of the invention is the adsorption on the surface of carbon hemosorbents of toxic gases and vapors, carcinogens and isotopes of heavy metals released from tobacco and tobacco products and the simultaneous therapeutic effect (sedative, antispasmodic) provided by the repository.

The invention is illustrated by drawings.

In FIG. 1-3 are schematic examples of the structure of a cigarette filter. The present invention is described in more detail in examples of its implementation, however, the invention is not limited to only these examples.

The amount of hemosorbent and the repository is set as follows. If the hemosorbent or the repository is in the filter material, the amount is from 1 to 150 mg, preferably 20-70 mg per 10 mm of filter material, and if located in the space between the filter materials, their amount is from 5 to 300 mg, preferably from 30 up to 130 mg per 5 mm of space.

Example 1. A control cigarette filter that does not contain an adsorbent and a repository is prepared as follows. Two filter materials (round filters) are obtained by molding fibrous cellulose acetate with a thread thickness of 2.2 denier and a tow of 40,000 denier to produce a length of 10 mm and the filter materials are wrapped with wrapping paper to obtain two filter sections. These two filter sections are positioned so as to form a 5 mm space between them, these two filter sections are wrapped together with forming paper.

Example 2. A cigarette filter is made as follows. Two filter materials obtained in example 1 are formed into two filter sections, wrapped together with forming paper so that there is a space between them, where 45 mg of SKN hemosorbent is loaded (TU U 88258019-98).

Example 3. A cigarette filter (Fig. 1) is made as follows. Two filter media obtained in example 1 are formed into two filter sections (1, 3). 40 mg of the burial ground is loaded into one of them (1) and placed on the upstream side of the filter. The filter sections are wrapped together with forming paper so that there is a space between them where 50 mg of hemosorbent is loaded (2).

Example 4. A cigarette filter (Fig. 2) is made as follows. The two filter materials obtained in Example 1 are formed into two filter sections (1, 4), wrapped together with forming paper so that there is a space between them where 45 mg of hemosorbent (2) and 40 mg of the burial ground (3) are loaded downstream of hemosorbent.

Example 5. A cigarette filter (Fig. 3) is made as follows. The two filter materials obtained in Example 1 are formed into two filter sections (1, 3), wrapped together with forming paper so that there is a space between them where the mixture (2) 30 mg of hemosorbent and 40 mg of the burial ground are loaded.

In this invention, the side of the tobacco rod is the side upstream, the mouthpiece side is the side downstream.

Each of the described cigarette filters was attached with a strip to a cigarette section obtained by wrapping shredded tobacco with wrapping paper to obtain test cigarettes according to Examples 1-5. A commercial cigarette rod was used for the cigarette section. Each test cigarette is burned in a static state by 15 mm and then subjected to one puff under standard smoking conditions. The smoke component of the main stream flowing out of the filter was measured by gas chromatography and mass spectrometric analysis.

The filtration efficiency for each component of the mainstream smoke was calculated as the ratio of the amount of depleted component to the amount of component measured with a tobacco rod without filter. The results are shown in the table. The table also shows the results obtained from burning a control cigarette without hemosorbent and burial ground.

A real cigarette relieves headaches, nervous tension.

As can be seen from the table, the repository does not impair the sorption properties of the hemosorbent. The claimed filter effectively absorbs toxic components of the mainstream smoke, and also has a beneficial therapeutic effect on the body.

- 2 010140

Filtration efficiency of mainstream smoke components

Components Dima number smoke components of the main stream, mg the main By By By By By flow example 1 Control. example 2 example 3 example 4 example 5 Furaldehyde You No No No No Benzyl butyl ether 3.14 0.76 0.76 0.73 0.73 Pyrazine 0.50 No No No No Furan ^G 7D2 No No No No Acetic acid '0.50 0.50 0.50 0.50 0.50 Glycerol diacetate 4.68 1.76 1.76 1.76 1.76 Croton aldehyde 1,62 No No No No Nicotine 2.13 1.90 1.90 1.90 1.90

CLAIM

Claims (4)

1. A cigarette filter containing filter sections containing two filter materials enclosed in brown paper and a hemosorbent, characterized in that it further comprises a burial ground (redapaseae) in at least one of the filter materials or in the space between the filter materials, the filter materials individually wrapped with wrapping paper, and also contains forming paper for wrapping together the filter sections and mouthpiece paper covering the forming paper so as to connect the filter lower sections with a cigarette section to form a filter cigarette. 2. The cigarette filter according to claim 1, characterized in that it contains a burial ground distributed in the filter material located on the upstream side of the filter. 3. Cigarette filter according to π. 1, characterized in that it contains a burial ground in the space between the hemosorbent and the filter material located on the upstream side of the filter. 4. Cigarette filter according to π. 1, characterized in that it contains a mixture of the repository and hemosorbent located in the space between the filter materials.