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Ventilating shell for smoking product Invention relates to a shell for usage in conjunction with a smoking product; the shell provides for an inlet hole for environment air and two possible ways for environment air flow when the shell is used with a smoking product; the first way passes through the shell but not through the smoking product; the second way includes flow through the smoking product; the shell includes a pressure-sensitive valve in case of unset whereof air flow along the first way is ensured. |
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Smoking product with improved flow restriction element Invention relates to a smoking product (10) containing the following elements: a smoking material core (12); a filter (14) containing a flow restriction element (26, 26') attached to the smoking material core (12); the flow restriction element (26, 26') contains the following parts: the first integral tubular part (30, 30') positioned downstream; the second tubular (32, 32') part positioned upstream and having essentially the same outer diameter as the first tubular part (30, 30'); the third central, integral tubular part (34, 34') positioned between the first and the second tubular parts (30, 30', 32, 32'), the third tubular part (34, 34') has decreased outer diameter in comparison with the first and the second tubular parts (30, 30', 32, 32'); and a crosswise barrier (36, 36') containing at least one hole (38, 38') provided for therein; the crosswise barrier (36, 36') is positioned between the first cavity (40, 40'), positioned downstream and at least partly formed by the inner periphery of the first tubular part (30, 30'), the second cavity (42, 42'), positioned upstream and at least partly formed by inner periphery of the second tubular part (32, 32'); and a ventilation area positioned in a place along the filter (14) and communicating with the second cavity (42, 42'). |
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Invention relates to a smoking product filter containing an elongated base part of the filtering material, an internal wrapper (having the first and the second areas of a non-porous material positioned around and with an interval along the filtering material length with formation of clearance acting as a ventilation zone) and an external wrapper positioned over the internal wrapper and designed so that ventilating air may be drawn through the ventilation zone and passed into the filtering material through the external wrapper and in a longitudinal direction between the internal and the external wrappers. |
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Tobacco smoke filter and methods of its production FIELD: tobacco industry. SUBSTANCE: tobacco smoke filter has a cylindric cover containing a spiral element with diameter approximately equal to the inner diameter of the cover as well as filtering means placed between the spiral element and the cover. The spiral element contacts the cover to the its inner diameter and is made by means of sideward compressing with the ability to maintain the contact after the compression. Filter production requires the preparation of the cylindric spiral having the inner space inside the spiral volute and outer edge making a cylindrical form. In the specified inner space filter means are located along with wrapped outer edge of the filled spiral cover. Spiral element is used sidewards thus providing its contact with the cover which is preserved after the spiral element copression. EFFECT: this filter provides the increased contact time with the filtering material and expanded space of the filtering material contact surface. 15 cl, 13 dwg |
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This invention relates to a tobacco smoke filtering element, a filter containing such element and smoking products containing such filter and(or) filtering element. The filtering element has a longitudinally elongated core and a wrapper enclosing the core. The core contains a filtering material while the wrapper contains a dispersed material adherent to two or more areas of the wrapper that are arranged circumferentially with intervals relative each other with at least one of them stretching along the whole of the wrapper longitudinal length. The dispersed material contains one or more sorbents capable to absorb smoke vapour phase components. |
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Improved smoking product filter (versions) Invention is related to an improved smoking product filter, in particular, to a cigarette filter. The filter includes the first section containing a smoke-impermeable material with a smoke flow duct longitudinally arranged therethrough, the second section positioned at an interval relative to the first section, the gap providing for smoke passage from the first section to the second one without dispersion of a greater part of its particles prior to reaching second section material. The second section is axially aligned with the first one. The second section contains a core segment enclosed by the circumferential space segment and ventilation holes arranged in the second section or in the interval. One of the sections of the core and the circumferential space contains a filtering material with a high differential pressure. The other of the above sections contains a material with a lower differential pressure. The smoke flow duct is longitudinally aligned with the circumferential space segment or the core segment containing the material with a high differential pressure. In accordance with another version the filter includes the first section containing a smoke-impermeable material with a smoke flow duct longitudinally arranged therethrough, the second section positioned at an interval relative to the first section, the gap providing for smoke passage from the first section to the second one without dispersion of a greater part of its particles prior to reaching second section material. The second section is axially aligned with the first one. The second section has a mouthpiece end on the interval side. The filter has ventilation holes arranged in the second section or in the interval and a smoke-impermeable closure insert connected to the second section end on the interval side. The smoke flow duct is matched to the closure insert. |
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Smoking device with fragile capsule, fragile capsule and its production method Smoking device contains a receiving container holding or capable to hold combustible products, mainly - tobacco. Connected to the receiving container is a filtering element having at least one fragile capsule containing a core and a coating. The capsule initial crushing strength is from 4.9 to 24.5 N. After smoking test the capsule preserves crushing strength from 4.9 to 24.5 N. Before destruction the size of its deformation is less than two thirds of its diametre. The coating contains at least one hydrocolloids represented by gellan gum, agar, alginates, carrageenans, pectins, gum arabic, Ghatti gum, pullulan, mannan gum or modified starch taken singly or in a mixture or in combination with gelatine. The quantity of hydrocolloid in the coating is 1.5 - 95 wt %, predominantly - 4 - 75 wt % and more preferably - 20 - 50 wt % of the coating total weight. The method of such a capsule production involves coextrusion of hydrophilous outer liquid phase and lipophilic inner liquid phase; solidification and/or condensation of the coating surface by way of the capsule maintenance under cold conditions; the capsule final rinsing with an organic solvent; the capsules drying and additionally covering the capsules with at least one moister protecting layer. |
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Filter or filtering element contains at least two different additives. Additives are arranged at least in two zones located one behind the other in longitudinal direction of filtering body, and at least in two zones arranged in radial direction of filtering body, at least on separate sections one above the other, in particular, in layers. Additives may be arranged only at least in two zones arranged in radial direction of filtering body, at least on separate sections one above the other, in particular, in layers. Filter or filtering element is made of material flat in initial condition, in particular, from continuous corrugated filaments, paper, fibrous cloth, fabric, nonwoven materials and similar. Filtering body contains at least two zones arranged one behind the other in longitudinal direction of filtering body. Zone at the side of tobacco contains additive, and in zone at side of mouthpiece there are no additives. In method to make filters or filtering elements, filtering body is provided with at least two various additives. Additives are applied onto flat initial material either in the form of strips arranged substantially parallel to each other and in the form of layers above each other, or only in the form of layers above each other. |
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Flavouring particle and cigarette filter Flavouring particle comprises a carrier particle, glucan film deposited on the carrier particle, and a flavouring. Flavouring agent is retained by the flavouring particle so that emanation of flavour from aromatic substance is inhibited by the glucan film. However, the flavour is released with glucan film which is at least partially destroyed when glucan film is in contact with the main smoke stream. Cigarette filter may include this flavouring particle. |
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Technical solution under consideration relates to tobacco industry immediately dealing with manufacture of cigarettes with filter. The filtering element is represented by a screw-shaped structure increasing the smoke flow path. The screw-shaped structure is executed in multiple design versions:. consisting of 3-4 blades with a twist angle of 5-25° and position of the filtering element between the blades, with or without a core, with an unlimited number of blades of an absorbent material with or without a core, of longitudinal filaments, thermally or chemically bonded. |
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Sigarette aromatisation method using aromatised filtering wick cover Invention refers to aromatisation methods of filtering wick cover of smoking item filter, for example a cigarette. Smoking item includes aromitising agent applied to the cover or introduced into the cover of the filtering wick and contained therein in suspended form in the appropriate bonding agent, for example in carboxymethyl cellulose. In the smoking item prior to passing through aromatised filtering wick cover the main smoke plume passes through coal filter. |
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Tobacco smoke filter consists of made as a complete unit thermoformed filtering core that is uniform circulary on the outside from one end to the other and consisting of a tubular body from the material filtering tobacco smoke, open at at least one end and blocked by the filtering dummy from the specified material that filters tobacco smoke made as one unit with the tubular body, at this the specified filtering dummy is at least 8 mm long but is shorter than the rest part of the filtering core and probably from the wrap around the filtering core. The filter can be of multiple length from which the filter according to the invention is cut. |
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Filter-tipped cigarettes and method for manufacturing the same Filter-tipped cigarette has tobacco core wrapped in wrapping paper, filter joined with tobacco core wrapped along the entire length thereof into mouthpiece or other wrapping paper for filter, said paper differing from standard wrap for filtering tampon, and connection strip for covering of tobacco core and filter joint to thereby connect filter and tobacco core. Natural permeability of mouthpiece or other wrapping paper for filter is 50-500 units of Korest. Method involves making batches of filters on one and the same machine; wrapping filters through the entire length thereof with mouthpiece paper or other wrapping paper differing from standard filter wrap having natural permeability of 50-500 units of Korest and ventilation extent predetermined for each batch; feeding batches of filters wrapped with ventilated wrap to respective machines for manufacturing of doubled cigarettes with doubled filter positioned between two wrapped tobacco cores; joining filter with two wrapped tobacco cores by means of narrow joining strips; cutting doubled filter for producing two filter-tipped cigarettes. Thus, various batches of cigarettes with filter ventilation extent may be manufactured on different machines. Another method involves manufacturing cigarettes having filter wrapped with mouthpiece or other wrapping paper with natural permeability of 50-500 units of Korest, said wrapping paper differing from standard filter wrap and comprising powder material applied thereto and tobacco core wrapped in wrapping paper; to do that, feeding filtering tampon to machine connected with filter manufacturing machine and designed for applying of powder material; feeding mouthpiece or other filter wrapping paper for applying of powder material thereto; wrapping filtering tampon with wrap; cutting wrapped filtering tampon into parts having length corresponding to that of cigarette; feeding said parts to filter-tipped cigarette manufacturing machine, wherein using narrow joining strip for joining filter and tobacco core to produce filter-tipped cigarettes. |
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Cigarette filter and method for manufacturing the same Filter has at least two filter components 12, 13, 14. One filter component is one kind of multiple-component fibers 12, with length of multiple-component fibers 12 being less than length of filter 10, 10', 16, 16'. Method involves manufacturing bundle comprising at least one kind of multiple-component fibers 12 having length less than length of filter 10, 10', 16, 16' to be manufactured, as bundle component; heating fiber bundle to temperature exceeding melting temperature of casing 21 of at least one kind of multiple-component fibers 12; cooling fiber bundle to temperature below melting temperature of casing 21 of at least one kind of multiple-component fibers 12. |
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Filter has filtering medium and means for heating of filtering medium or peripheral zone of filtering medium. Heating means is adapted for adjustment of temperature within the range of from 100 C to 200 C. Filtering medium is made from heat-resistant fibers and makes high-efficiency filter providing practically 100% removal of particles. Heating means allows temperature to be regulated in two or more stages. Filter has cooling section and may be equipped with additional filter consisting of activated charcoal. Filtering medium may contain laminated phosphate as adsorbent. |
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Method for manufacturing of cigarettes Method involves manufacturing endless strands of filtering material from each filtering material, said strands consisting of first filtering material in enclosure and second filtering material in enclosure; preparing from endless strands first and second cuts of predetermined length from different filtering materials; alternatively arranging cuts in row with predetermined space therebetween and continuously enclosing in enclosure for forming next (other) endless strand; dividing said next endless strand into cuts of double filter, with ends of said cuts consisting of second or first cut of half length, and mid portion comprising second or first cut of full length; arranging double filter cuts so that each cut is positioned between two tobacco sections, and connecting with respective tobacco section using end enclosure; dividing double filter cuts along their mid portions. |
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Method of preparing open-cell foamed material Invention relates to foamed material constituted by cross-linked amino-formaldehyde polymer product suitable for filtration of tobacco smoke. Foamed material according to invention contains cavities and intermediate spaces located outside of cavities, said spaces being confined by walls consisted of cross-linked amino-formaldehyde polymer product optionally supplemented by additives. Average space dimension lies within 30 to 350 μm. Considerable portion of spaces have two or more perforations with average diameter within a range of 5 to 300 μm in their walls while considerable portion of perforations of neighbor spaces are arranged relative to each other in such a way as to form continuous nonlinear path. Foamed material is characterized by porosity at least 45 vol % and specific surface area 0.1 to 15 m2/g. Method of preparing of such foamed material comprises following stages: mixing air and foaming agent solution under pressure in mixing zone of injector filled with multiple inert mixing members; passing, under pressure, non-hardened foam from mixing zone and prepolymer solution into reaction zone of injector to form curable foam; and discharging foam and drying it in air. Use of such foamed mixture as cigarette filter allows content of toxic compounds such as resins and polycyclic aromatic compounds to be lowered. |
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Filtering device for cigarette and method for manufacturing the same Filtering device has cylindrical filtering member including filtering material consisting of bundle of acetate filaments, wrapping paper wrapped around filtering material, and adhesive portion provided on inner surface of wrapping paper. Adhesive portion has part onto which adhesive is applied, said part continuously running circumferentially of filtering member. Method for manufacturing filtering device involves applying adhesive onto part of wrapping paper web for defining portion adapted for applying adhesive thereto before wrapping paper web reaches wrapping section. |
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Cigarette filter comprises filtering sections including filtering materials, which are individually wrapped with wrapping paper, forming paper for wrapping of filtering section together, and mouthpiece paper for covering forming paper so as to connect filtering sections with cigarette section for producing of cigarette. Cigarette filter contains, as adsorbents, activated carbon and porous material based on inorganic mineral and comprising ferric sulfate/L-ascorbic acid in at least one of filtering materials or in gap between filtering materials. |
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Cigarette filter has filtering sections including filtering materials, individually wrapped with wrapping paper; forming paper for wrapping filtering sections together; and tip paper for covering of forming paper so as to join filtering sections with cigarette section for producing of cigarette. Cigarette filter has adsorbents such as activated carbon and silicon dioxide/aluminum oxide in at least one of filtering materials or in space between filtering materials. |
Another patent 2542440.