WO2012053927A1 - Cigarette filter - Google Patents

Abstract

A cigarette filter, consisting of sorbing parts and filtering parts, the final one of which is fixed to the end of the cigarette, characterized in that the sorbing part can be fixed to the free end of the filtering parts so as to be able to surround the end section thereof with a clearance, for which the sorbing part is in the form of a capsule comprising walls and an impermeable bottom which is equipped at the end facing the filtering part with a fixing rod, the end of which is sharpened and is equipped with a flexible fixing bend, with a sharpened point at the end, wherein the length of the fixing rod is less than the length of the filtering part, wherein part of the cavity of the capsule is occupied by the sorbing material, for which use is made of a wad of cotton or cotton wool. Furthermore, when a loose or granulated sorbing material is used in the composition of the sorbing part, said material is placed at the bottom of the capsule and fixed in the capsule cavity with a wad of cotton wool. The claimed utility model ensures an increase in the technological effectiveness of production of the filtering part and the option of varying the selective capacity of the filtering part of the cigarette for capturing the toxic components of cigarette smoke.

Description

 FILTER FOR CIGARETTES

 The utility model relates to the tobacco industry and can be used in the manufacture of combined cigarette filters.

Various filters are known that reduce the toxic substances content in tobacco smoke, made from fibers of an organic polymer, for example, acetate, cellulose or cellulose acetate fibers with substances (additives) deposited on it or placed between the fibers and having adsorption properties. As such substances, simple substances such as water-soluble divalent metal salts (for example, iron acetate, copper acetate, zinc sulfate, etc.) that readily bind nicotine (US Patent Ns4397321, CL A24D 15 / 28, 1983), and organic acids (for example, salicylic) that bind aldehydes contained in tobacco smoke (RF Patent Ne2045921, CL A24D 3/16, 1995). The adsorbent substances included in tobacco filters may be complex synthetic substances or substances of natural origin. Filters containing polysaccharide additives are known to reduce the mutagenic effect of tobacco smoke condensate (RF Patent ЖУ96005, CL A24D 3/08, 1997). Filters are known which include biological additives as adsorbents, for example, micelles Polyporaceae bacidiomycetes (US Patent No. 4735218, CL A24D 3/08, 1988) or algae chlorella and spirulina in combination with activated carbon (Patent USA jNe4756319, CL A24D 3/14, 1988), which increase the efficiency of sorption of aromatic hydrocarbons. A known filter for cigarettes containing a combined additive deposited on the fibers of a paper web consisting of solid and liquid sorbents, an aqueous solution of sorbitol in an amount of 5-25% by weight of the filter is used as a liquid sorbent, and a powdered calcium hydroxide in an amount of 9 is a solid sorbent -18% by weight of the filter (RF Patent Ж2197877, class A24D 3/06, publ. 02/10/2003). The disadvantages of the known filters are that they are adapted to various types of tobacco and cigarette manufacturing technologies, and therefore turn out to be ineffective when changing these parameters.

 A filter for cigarettes is also known, consisting of filtering and sorbing parts (RF Patent Ж2010545, class A24D 3/14, publ. 04/15/94). A well-known filter contains two filter sections and an adsorbent in the form of lignin in the amount of 22-66 mg / cigarette placed between these sections reduces the content of tar, nicotine, carbon monoxide and volatile nitrosamines in tobacco smoke by an average of 20.2% - by resin; 68.5% for nicotine; 58.8% for carbon monoxide and 87.5% for volatile nitrosamines. Lignin is one of the main structural components of plants, especially wood.

 The known filter does not fully capture the harmful components of the solid-liquid and gas phases of cigarette smoke, in particular nitric oxide. In addition, the claimed device is not technologically advanced in manufacture.

 The technical task of the utility model is to increase the manufacturability of the device and the possibility of varying the selective selective ability of the filtering part of the cigarette to capture the toxic components of cigarette smoke.

The stated technical problem is solved in that the filter for cigarettes, consisting of sorbing parts and filtering parts, the last of which is fixed on the end of the cigarette, is characterized in that the sorbing part is configured to be fixed on the free end of the filtering parts, with the possibility of coverage with a gap of its end portion, for which the sorbent part is made in the form of a cup, including walls and an impermeable bottom, which is provided with a fixing rod from the side facing the filter part, the end of which th tapered and is provided with elastic fixing limb, with particular at the end, thus fixing the rod length less than the length of the filter portion, wherein a portion the cavity of the cup is occupied by a sorbent material, which is used as a tampon made of cotton or cotton wool. In addition, when using bulk or granular sorbent material as part of the sorbing part, it is placed at the bottom of the cup and fixed in the cup cavity with a cotton wool swab.

 A comparative analysis of the features of the claimed solution with the signs of the prototype and analogues indicates the conformity of the claimed solution to the criterion of "novelty."

 The combination of features of a utility model provides a solution to the problem of a utility model, namely, increasing the manufacturability of the device and the ability to vary the selective selective ability of the filter to capture the toxic components of cigarette smoke.

 The drawings show a longitudinal section through a cigarette, wherein Fig. 1 shows a cigarette without loose or granular sorbent material before being removed from the cigarette pack; figure 2 shows a cigarette with loose or granular sorbent material before being removed from the pack; Fig. 3 shows a cigarette without loose or granular sorbent material after being removed from the pack (ready to use).

 The drawings show a cigarette 1, its filtering part 2 (standard filter), the sorbing part of the cigarette, including a cup 3, with a wall 4 and an impermeable bottom 5, which is provided with a fixing rod 6 from the side facing the filtering part, one end of which is rigidly fixed with the fifth 7, and the free end is pointed and provided with an elastic fixing limb 8 with a pointed 9 at the end, a tampon 10, a loose or granular sorbent material 11.

Cigarettes 1 are made in a known manner from a tobacco bag that is as close as possible to a production one for full-bodied cigarettes using highly smoldering cigarette paper, a perforated rim and a cellulose, cellulose acetate or acetate filtering part 2 (filter) 20 mm long. A cup 3, with a wall 4 and an impermeable bottom 5, is made of food-grade plastic, cardboard (such as cigarettes used to make cartridges), etc. materials. The locking rod 6 with the fifth 7 form a rigid structure such as a button, which the fifth 7 is bonded (for example, biologically inert adhesive) with an impermeable bottom 5, cup 3. It is made of food-grade plastic, metal, etc. materials.

 The tampon 10 is made of cotton or cotton wool, preferably in the form of a tablet (washer), one side of which, resting on the heel 7 of the fixing rod 6, is made flat, and the second, facing the filter part 2, is provided with a recess 12, preferably round . Vata may be additionally impregnated with materials that are sorbents for liquid toxins contained in cigarette smoke.

 In the manufacturing process, a cigarette with a filter part 2 is made according to known technology using known means. During the manufacturing process of the sorbent part of the cigarette, it is assembled from prefabricated elements: glue is introduced into the impermeable bottom of 5 cups 3, in an amount sufficient to fix the heel 7 of the fixing rod 6, after which the latter is introduced into the cup until it contacts the bottom and provide glue connection of the named parts. Then put the tampon And on the rod and slide it to the heel 7. Next, the sorbing part of the cigarette is fixed at the end of the filtering part 2, for which they are placed coaxially and moved counter-to each other. In the process, the tip of the rod easily penetrates into the array of the filtering part 2 (in this case, the bend 8 is pressed against the fixing rod 6. Next, cigarettes are packaged in a known manner.

When using a cigarette, the smoker pulls it out of the pack while holding the sorbing portion. At the same time, an effort is applied to the sorbing part, which tends to separate it from the filtering part of the cigarette. Under the action of the "pulling" force, the locking rod 6 begins to be drawn from the filter material, while the pointed end 9 of the bend 8 is embedded in the channel wall (formed in the filter volume during the connection of the sorbing part with the filtering part) and adheres to the material of the filtering part 2, eliminating the possibility of further extraction of the fixing rod 6 and moving the sorbing part away from the end of the filtering part. This forms a channel for the passage of smoke (with a rotation of 180 °, compared with the direction of movement of the smoke in the filtering part 2).

 Thus, in the process of smoking, cigarette smoke, passing through the filtering part 2 at a speed, is introduced into the tampon 10. When interacting with the material of the tampon, liquid and solid fractions of smoke are sorbed in the tampon, due to centrifugal forces arising from the reversal of the smoke stream, after which the cleaned smoke exits through the gap 12 between the inner surface of the cup 3 and the surface of the filter part 2.

 The high absorption and selective ability of the sorbent part is explained by the peculiarities of its chemical and physical structure, as well as by the mechanism of filtering tobacco smoke. Two main mechanisms are involved in the process of smoke filtering: diffusion and direct capture of smoke particles, the size of which is in the range of 0, 1-1.0 μm.

 Compared with the known filters, the proposed filter for cigarettes can significantly reduce the negative effects of toxic substances of cigarette smoke on lung cells and reduce the risk of lung cancer.

 Thus, the proposed filter, while maintaining the palatability of known cigarettes, can reduce the risk of malignant neoplasms associated with smoking.

 The advantage of the proposed filter is also that the technology of its manufacture is quite simple, which reduces the cost of cigarettes

Claims

USEFUL MODEL FORMULA  1. A filter for cigarettes, consisting of a sorbing part and a filter of the parts, the last of which is fixed on the end of the cigarette, characterized in that the sorbing part is made with the possibility of fixing on the free end of the filtering parts, with the possibility of coverage from behind - a gap of its end section, for which the sorbent part is made in the form of a cup, including walls and an impenetrable bottom, which is provided with a fixing rod on the side facing the filtering part, the end of which is pointed and provided with an elastic fixing bending, with a sharpness at the end, while the length of the fixing rod is less than the length of the filtering part, and part of the cavity of the cup occupies sorbent material, which is used as a cotton swab or cotton wool.  2. The filter according to claim 1, characterized in that, when a loose or granular sorbent material is used in the sorbing part, it is placed at the bottom of the glass and fixed in a glass cavity with a cotton wool swab.