US20050161055A1 - Filter unit for filter-cigarettes and filter cigarettes - Google Patents

Filter unit for filter-cigarettes and filter cigarettes Download PDF

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Publication number
US20050161055A1
US20050161055A1 US10/511,681 US51168104A US2005161055A1 US 20050161055 A1 US20050161055 A1 US 20050161055A1 US 51168104 A US51168104 A US 51168104A US 2005161055 A1 US2005161055 A1 US 2005161055A1
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US
United States
Prior art keywords
filter
filter unit
cigarette
tip
nicotine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/511,681
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English (en)
Inventor
Peter Rozim
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20050161055A1 publication Critical patent/US20050161055A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent

Definitions

  • the present invention relates to a filter unit for reducing the tar and nicotine content of the smoke of cigarettes containing a tobacco body and a filter tip. Furthermore the invention relates to cigarettes containing filter unit.
  • the tobacco raw material is grown in improved breeding in order to obtain a plant with increased aroma, resin and sugar content at the lowest harmful nitrogen compound content and, at the same time, plants with finer leaves.
  • the tobacco is fermented, in which process the tobacco heats up, its weight decreases and changes caused by enzymes and bacteria occur.
  • the fermented tobacco is processed to tobacco products: cigars, cigarettes and cigarette- or pipe-tobacco.
  • the two most harmful components of tobacco smoke are nicotine and tar. At smoking, they get into the human organism where they deposit and absorb, exerting there their heavily harmful influence on health.
  • the main alkaloid of tobacco is nicotine, but in its leaves, it contains a series of other chemically related compounds. At smoking, about 30-60% of the nicotine content gets into the smoke, and 20-90% of this amount is absorbed in the human organism, depending on the mode of smoking, whether it occurs fast or slowly, or whether the smoke is inhaled directly into the lungs. In spite of its harmful and toxic effect, the delight of smoking is provided by nicotine.
  • Numerous smoke filters have been developed for reducing the amount of nicotine, and especially tar, present in cigarette smoke introduced into human organism. They may be filters containing additives (e.g. active carbon, charcoal), promoting ventilation or heating, or filters suitable for dispersing smoke. Such are described e.g. in U.S. Pat. Nos. 3,958,579; 3,882,877; 3,762,422; DE-OS 29 02 120 and DE-OS 23 56 569. Their common draw-back is that the air resistance is significantly increases by the filter and thus their smoking is rather difficult. Further on, they impair the aroma of the tobacco, the habitual character of the cigarette has changed. In this way, a cigarette with a new nature and an impaired delight value was received from the traditional cigarette of known and enjoyed characteristics.
  • additives e.g. active carbon, charcoal
  • filters suitable for dispersing smoke e.g. in U.S. Pat. Nos. 3,958,579; 3,882,877; 3,762,422; DE-OS 29 02 120 and DE-
  • the object of the present invention is to develop a filter unit which is applicable in cigarettes provided with filter-tip, the production of which can be fitted into traditional production technology, in a way that the original nature of the cigarette, its smokability, aroma and delight value remain and, at the same time, the carcinogenic tar and nicotine content of the smoke is reduced significantly.
  • the filler unit contains wood cuttings of particle sizes of 0.2-1.2 mm impregnated with sodium chloride, preferably with a solution of 20-40% of sodium chloride and 80-60% of water.
  • the wood cuttings may be present loose, or alternatively, applied on a strip made of cellulose-acetate.
  • the wood cuttings should preferably be in a loose form, as the cellulose-acetate strip has been proven to be carcinogenic, similarly to all other filter-tips with additional filters. At every puff, together with the smoke, some of the cellulose-acetate gets into the lung, and may cause lung cancer by accumulating there.
  • the filter unit according to this invention contains natural and harmless materials instead of the harmful and carcinogenic cellulose-acetate, in addition to its capacity for the significant reduction of the amount of carcinogenic tar and toxic and harmful nicotine.
  • the filter unit can be applied between the tobacco body and the filter tip, or between two parts of the filter tip, and can be separated from the filter by a closing web.
  • Wood cuttings alone are capable of some filtering. However, they become an excellent adsorber upon impregnating them by sodium chloride. The big surface area of the impregnated wood cuttings becomes porous after drying, due to the presence of sodium chloride crystals, further increasing thereby the original surface area.
  • Wood cuttings impregnated with sodium chloride solution as filter perform increased physical filtering of the cigarette smoke due to the increased crystalline and porous surface. it, The tar and nicotine content of the smoke can deposit on and adhere to an increased surface area when the cigarette smoke passes through.
  • the sodium chloride solution increases the filtering effect not only by increasing the surface area, but also by forming a crystallized film capable of dissolving and crystallizing again and again.
  • the crystalline sodium chloride becomes a good adsorbent when it gets into contact with the hot and moistureous cigarette smoke, and its surface becomes activated by some dissolution and softening. Than, the tar and nicotine particles adhere to its surface, then penetrate into the filtering medium.
  • the slightly heated sodium chloride cools down and crystallizes, adsorbing thereby the tar and nicotine therein. At every new puff the adsorption is repeated.
  • the filter unit according to the invention directs the smoke passing through it to the whole surface area of the filter and distributes it on the surface uniformly.
  • the whole surface area is utilized and the efficiency increases.
  • filtering occurs only on part of the surface, since the air-smoke mixture swirls to the central part of the filter and the deposition and adsorption of tar and nicotine concentrates on this part.
  • wood cuttings is advantageous as it is a waste material, it is cheap and it is a natural substance (which is important in view of environmental protection). Its weight is also small: the weight of the filter unit made of it does not reach the weight of the charcoal filter applied on a cellulose-acetate tape used world-wide in filter cigarettes. It is a soft material, thus it can be fitted into every technology of cigarette and filter manufacture, and due to its polygonal shape, it has a large surface area. Further on, its structure is fibrous and, owing to all this, it has a very high adsorption capacity.
  • the sodium chloride solution can be absorbed and it can impregnate the wood cuttings. After drying, the thin film forms a crystalline and porous surface, the unevennesses of which increase the whole surface area, increasing thereby the filtering capacity. At contacting with the hot and moistureous air, the surface gets slightly dissolved and softened, and as a result, the microparticles of tar and nicotine adhere to the surface immediately. After cooling, the sodium chloride solution crystallizes, gets solid and porous again.
  • the tar content of cigarette smoke can be reduced by 10-30%, whereas its nicotine content by 12-32%, depending on the nature and quality of the tobacco, on the length of the cigarette body, without influencing or changing the aroma, delight value and character of the cigarette.
  • FIG. 1 is the longitudinal section of a cigarette provided with a filter unit according to the invention
  • FIG. 2 is the cross-section of a filter unit
  • FIG. 3 is the cross-section of another embodiment of the filter unit
  • FIG. 4 is the section of another embodiment of a cigarette provided with a filter unit according to the invention.
  • FIG. 1 shows the longitudinal section of a filter-tip cigarette.
  • Body 1 of the cigarette consists of tobacco 3 covered by cigarette paper 2 , while filter tip 4 contains the traditional filtering element: a helically wound strip.
  • Filter unit 5 according to the invention is arranged between body 1 and filter tip 4 . They are separated by a web 6 .
  • FIGS. 2 and 3 Cross sections of the two embodiments of filter unit 5 are shown in FIGS. 2 and 3 .
  • filter unit 5 is similar to that of filter tip 4 .
  • the wood cuttings 9 according to the invention are spread on the surface of a helically wound acetate strip 8 in paper covering 7 .
  • wood cuttings 9 are arranged loose in paper covering 7 . Their spillage is hindered in both cases by web 6 shown in FIG. 1 .
  • the filter unit according to the invention can be arranged not only between the cigarette body 1 and the filter tip 4 , but also within the filter tip 4 .
  • FIG. 4 illustrates an embodiment in which filter tip 4 is separated into two parts, and the filter unit 5 according to the invention is inserted between these two parts. Between filter unit 5 the right part of filter tip 4 there is a web 6 .
  • Characteristics of the original cigarette were the following: TABLE 1 Full length of the cigarette 98.6 mm Body length 72.6 mm Filter length 26.0 mm Diameter of the cigarette 7.9 mm Total weight 1.1153 g Tar content 0.5 mg Nicotine content 0.93 mg
  • Table 3 shows the results for samples made according to FIG. 1 as well, but the wood cuttings in the filter unit were loose.
  • Control Invention Tar (mg/cigarette) 10.5 9.0 Nicotine (mg/cigarette) 0.93 0.77 Tar reduction (%) 14.28 Nicotine reduction (%) 17.20
  • the filter unit according to the invention reduces the tar and nicotine content of cigarette smoke in each case. At the same time, the smoke distribution became more uniform and, as a consequence, the efficiency of the filter was increased.
  • the density (0.4 g/cm 3 ) and weight (0.25 g) of the filter unit met the requirements applied in the known filter-tip manufacturing technologies and were about the minimum values of density and weight allowed for the technology used for the tests, while the corresponding reduction in tar and nicotine content was between 10 and 20%.
  • the delight value of the cigarette and the air resistance of the filter did not increase with respect to the control samples.
  • the density and weight of the filter unit according to the invention can be increased, thus the amount of tar and nicotine filtered out can also be increased.
  • the tar and nicotine content can be further decreased without changing the delight value of the cigarette or increasing the air resistance of the filter, i.e. the smokability of the cigarette was not deteriorated.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
US10/511,681 2002-04-17 2002-05-15 Filter unit for filter-cigarettes and filter cigarettes Abandoned US20050161055A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
HUP0201257 2002-04-17
HU0201257A HUP0201257A2 (hu) 2002-04-17 2002-04-17 Szűrőbetét füstszűrős cigarettához
PCT/HU2002/000041 WO2003086117A1 (en) 2002-04-17 2002-05-15 Filter unit for filter-cigarettes and filter cigarettes

Publications (1)

Publication Number Publication Date
US20050161055A1 true US20050161055A1 (en) 2005-07-28

Family

ID=89980365

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/511,681 Abandoned US20050161055A1 (en) 2002-04-17 2002-05-15 Filter unit for filter-cigarettes and filter cigarettes

Country Status (9)

Country Link
US (1) US20050161055A1 (hu)
EP (1) EP1494553A1 (hu)
JP (1) JP2005522208A (hu)
KR (1) KR20040097355A (hu)
CN (1) CN1276735C (hu)
AU (1) AU2002307875A1 (hu)
CA (1) CA2482157A1 (hu)
HU (1) HUP0201257A2 (hu)
WO (1) WO2003086117A1 (hu)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040187881A1 (en) * 2001-02-22 2004-09-30 Richard Jupe Cigarette and filter with downstream flavor addition
RU2604020C2 (ru) * 2011-12-06 2016-12-10 Джапан Тобакко Инк. Сигаретный фильтр и сигарета
US10939701B2 (en) 2013-06-13 2021-03-09 Essentra Filter Products Development Co. Pte. Ltd Tobacco smoke filter

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20040238A1 (it) 2004-04-22 2004-07-22 Gd Spa Filtro per sigaretta e relativo metodo di realizzazione
KR102370554B1 (ko) 2015-06-08 2022-03-04 태영산업 주식회사 담배 필터의 제조방법
KR102370560B1 (ko) 2017-06-09 2022-03-04 태영산업 주식회사 생분해성 담배필터 제조장치
JP2021502527A (ja) * 2017-11-06 2021-01-28 コンセプト グループ エルエルシー 断熱モジュールおよび関連方法
KR102123302B1 (ko) 2018-06-01 2020-06-16 태영산업 주식회사 듀얼담배필터 제조장치

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917054A (en) * 1955-04-22 1959-12-15 Eastman Kodak Co Fibrous tobacco smoke filter containing solid additive
US3405719A (en) * 1966-10-12 1968-10-15 Lustbader Samuel Device for safely retaining a lighted cigarette
US3762422A (en) * 1971-11-17 1973-10-02 H 2 O Filter Corp Filter for cigarettes
US3882877A (en) * 1972-04-26 1975-05-13 Rothmans Of Pall Mall Filter for tobacco smoke
US3958579A (en) * 1972-09-07 1976-05-25 Baker-Alpha Corporation Cigarette filter
US4124033A (en) * 1971-11-25 1978-11-07 Vyzkumny Ustav Chemickych Zarizeni Cigarette filter
US4317460A (en) * 1978-01-20 1982-03-02 Gallaher Limited Smoking products
US5944026A (en) * 1994-04-19 1999-08-31 H.F. & Ph.F. Reemtsma Gmbh & Co. Tobacco products or materials resembling tobacco products containing natural substances having an antioxidative effect and processes for the preparation thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1217679A (en) * 1967-03-28 1970-12-31 Courtaulds Ltd Tobacco smoke filters
DE3544509A1 (de) * 1985-12-17 1987-06-19 Hoelter Heinz Raumfilter zur beseitigung von tabakrauch
BE1007973A7 (fr) * 1994-02-15 1995-11-28 Hens Olivier Filtre.
KR19990083841A (ko) * 1999-08-18 1999-12-06 송윤강 송진과 염화칼슘을 이용한 담배 필터

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917054A (en) * 1955-04-22 1959-12-15 Eastman Kodak Co Fibrous tobacco smoke filter containing solid additive
US3405719A (en) * 1966-10-12 1968-10-15 Lustbader Samuel Device for safely retaining a lighted cigarette
US3762422A (en) * 1971-11-17 1973-10-02 H 2 O Filter Corp Filter for cigarettes
US4124033A (en) * 1971-11-25 1978-11-07 Vyzkumny Ustav Chemickych Zarizeni Cigarette filter
US3882877A (en) * 1972-04-26 1975-05-13 Rothmans Of Pall Mall Filter for tobacco smoke
US3958579A (en) * 1972-09-07 1976-05-25 Baker-Alpha Corporation Cigarette filter
US4317460A (en) * 1978-01-20 1982-03-02 Gallaher Limited Smoking products
US5944026A (en) * 1994-04-19 1999-08-31 H.F. & Ph.F. Reemtsma Gmbh & Co. Tobacco products or materials resembling tobacco products containing natural substances having an antioxidative effect and processes for the preparation thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040187881A1 (en) * 2001-02-22 2004-09-30 Richard Jupe Cigarette and filter with downstream flavor addition
US7484511B2 (en) * 2001-02-22 2009-02-03 Philip Morris Usa Inc. Cigarette and filter with downstream flavor addition
RU2604020C2 (ru) * 2011-12-06 2016-12-10 Джапан Тобакко Инк. Сигаретный фильтр и сигарета
US10939701B2 (en) 2013-06-13 2021-03-09 Essentra Filter Products Development Co. Pte. Ltd Tobacco smoke filter

Also Published As

Publication number Publication date
CA2482157A1 (en) 2003-10-23
WO2003086117A1 (en) 2003-10-23
HUP0201257A2 (hu) 2004-05-28
EP1494553A1 (en) 2005-01-12
JP2005522208A (ja) 2005-07-28
AU2002307875A1 (en) 2003-10-27
CN1625350A (zh) 2005-06-08
CN1276735C (zh) 2006-09-27
HU0201257D0 (hu) 2002-06-29
KR20040097355A (ko) 2004-11-17

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