EP0474940B2 - Concentric smoking filter having discrete tow and web filter media - Google Patents
Concentric smoking filter having discrete tow and web filter media Download PDFInfo
- Publication number
- EP0474940B2 EP0474940B2 EP90313555A EP90313555A EP0474940B2 EP 0474940 B2 EP0474940 B2 EP 0474940B2 EP 90313555 A EP90313555 A EP 90313555A EP 90313555 A EP90313555 A EP 90313555A EP 0474940 B2 EP0474940 B2 EP 0474940B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- smoking
- plug
- central core
- tow
- 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.)
- Expired - Lifetime
Links
- 230000000391 smoking effect Effects 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 40
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 34
- 229920002301 cellulose acetate Polymers 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims description 25
- 238000009423 ventilation Methods 0.000 claims description 15
- 241000208125 Nicotiana Species 0.000 claims description 14
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 14
- 239000000779 smoke Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 4
- 239000000796 flavoring agent Substances 0.000 claims description 4
- 235000019634 flavors Nutrition 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims 1
- 238000012384 transportation and delivery Methods 0.000 description 10
- 239000000835 fiber Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 229960002715 nicotine Drugs 0.000 description 2
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- 241000120020 Tela Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
-
- 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
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
-
- 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
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
-
- 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
- A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
- A24D3/163—Carbon
Definitions
- filtering media other than cellulose acetate.
- One such medium is an appropriate sheet or web material.
- the web material which is gathered into a cylindrical plug, can be paper or any other web material, including cellulose acetate in sheet form. When such web materials are used as filters, they are frequently corrugated before being gathered. Paper webs may also be creped to improve tensile strength.
- segment 52 is constructed like filter 12, but has a length of only 18-20 mm, while segment 53 is a 7-9 mm long plug of 2.6/42000 cellulose acetate for tow having a denier per fiber of 2.6, a total denier of 42,000, and a "Y" cross-sectional shape.
- Total filter RTD is between about 125 mm W.G. and about 175 mm W.G., preferably about 141 mm W.G.
- the RTD of segment 53 is between about 15 mm W.G. and about 45 mm W.G., preferably about 36 mm W.G.
- the RTD of segment 52 is between about 85 mm W.G.
- the cigarette also exhibited a pattern of visible deposition of filtrate on the end of the filter much more like a tow filter as opposed to a web filter, even though most of the filtrate was deposited on the web core. This is believed to be the result of the smoke being forced into core 21 as the ventilation air is introduced at holes 15, and then trying to spread back into peripheral tow layer 20 through permeable wrapper 23.
- the filter of this invention will improve the taste of low delivery cigarettes. It is also possible that the filter of this invention may offer similar performance at higher deliveries. For example, a medium delivery cigarette may be perceived as a full-flavor cigarette.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57187890A | 1990-08-24 | 1990-08-24 | |
US571878 | 1990-08-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0474940A1 EP0474940A1 (en) | 1992-03-18 |
EP0474940B1 EP0474940B1 (en) | 1994-12-14 |
EP0474940B2 true EP0474940B2 (en) | 1999-10-06 |
Family
ID=24285429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90313555A Expired - Lifetime EP0474940B2 (en) | 1990-08-24 | 1990-12-13 | Concentric smoking filter having discrete tow and web filter media |
Country Status (17)
Country | Link |
---|---|
EP (1) | EP0474940B2 (xx) |
JP (1) | JP2767322B2 (xx) |
KR (1) | KR0175139B1 (xx) |
AT (1) | ATE115369T1 (xx) |
AU (1) | AU635095B2 (xx) |
CA (1) | CA2031727C (xx) |
DE (1) | DE69015185T3 (xx) |
DK (1) | DK0474940T4 (xx) |
ES (1) | ES2066157T5 (xx) |
FI (1) | FI94385C (xx) |
GR (2) | GR3015326T3 (xx) |
HK (1) | HK162995A (xx) |
HU (1) | HU212772B (xx) |
NO (1) | NO176464C (xx) |
PL (1) | PL166314B1 (xx) |
RU (1) | RU1836040C (xx) |
TR (1) | TR25717A (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101999755A (zh) * | 2010-12-17 | 2011-04-06 | 南通烟滤嘴有限责任公司 | 纸芯同轴滤棒 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5622190A (en) * | 1990-08-24 | 1997-04-22 | Philip Morris Incorporated | Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core |
US5365951A (en) * | 1990-08-24 | 1994-11-22 | Philip Morris Incorporated | Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core |
US5746230A (en) * | 1990-08-24 | 1998-05-05 | Philip Morris Incorporated | Concentric smoking filter having discrete tow and web filter media |
EP0638248A1 (en) * | 1993-08-12 | 1995-02-15 | Philip Morris Products Inc. | Methods and apparatus to make concentric filters composed of two or more materials |
GB9321536D0 (en) * | 1993-10-19 | 1993-12-08 | British American Tobacco Co | Smoking articles |
DE19718296B4 (de) * | 1997-04-30 | 2006-06-29 | British American Tobacco (Germany) Gmbh | Ventilierte Filtercigarette mit einem koaxialen Filterelement |
DE19722812C2 (de) | 1997-05-30 | 2003-02-13 | Bat Cigarettenfab Gmbh | Ultraleicht-Koaxialcigarette mit mehrteiligem Filter |
EE200000264A (et) * | 1997-11-13 | 2001-06-15 | H.F. & Ph.F. Reemtsma Gmbh | Vähendatud gaasifaasiga sigaret |
DE10009829A1 (de) * | 2000-03-01 | 2001-09-20 | Reemtsma H F & Ph | Rauchartikel |
GB0713905D0 (en) | 2007-07-17 | 2007-08-29 | British American Tobacco Co | Cellulose acetate thread in filter |
GB0811552D0 (en) * | 2008-06-24 | 2008-07-30 | British American Tobacco Co | Filter for a smoking article |
GB0816933D0 (en) * | 2008-09-16 | 2008-10-22 | British American Tobacco Co | Filter for a smoking article |
LT2978327T (lt) | 2013-03-28 | 2019-02-11 | Philip Morris Products S.A. | Rūkymo gaminys, apimantis aromatą tiekiantį elementą |
CN104188106A (zh) * | 2014-08-28 | 2014-12-10 | 云南中烟工业有限责任公司 | 一种高截留效率的卷烟滤嘴及应用 |
JP6833996B2 (ja) * | 2017-06-19 | 2021-02-24 | 日本たばこ産業株式会社 | 喫煙物品用フィルタおよびその製造方法 |
KR102391290B1 (ko) * | 2020-04-22 | 2022-04-26 | 주식회사 케이티앤지 | 흡연 물품용 마우스피스 및 이를 포함하는 흡연 물품 조립체와 흡연 물품 패키지 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3396061A (en) * | 1964-06-01 | 1968-08-06 | Celanese Corp | Smoke filters |
US4034765A (en) * | 1975-10-30 | 1977-07-12 | Liggett & Myers Incorporated | Tobacco smoke filter |
US4082098A (en) * | 1976-10-28 | 1978-04-04 | Olin Corporation | Flavored cigarette |
AU4119078A (en) | 1977-11-18 | 1980-05-08 | Philip Morris Inc | Filter system |
US4355995A (en) * | 1979-03-27 | 1982-10-26 | American Filtrona Corporation | Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same |
US4291711A (en) * | 1979-03-27 | 1981-09-29 | American Filtrona Corporation | Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same |
AU556902B2 (en) * | 1981-12-18 | 1986-11-27 | Cigarette Components Limited | Tobacco smoke filter |
DE3207683C2 (de) * | 1982-03-03 | 1986-06-05 | B.A.T. Cigaretten-Fabriken Gmbh, 2000 Hamburg | Filter für einen rauchbaren Artikel |
GB2119221B (en) * | 1982-04-05 | 1986-05-29 | Filtrona Ltd | Cigarette filter |
DE3743597C1 (de) * | 1987-12-22 | 1989-02-16 | Bat Cigarettenfab Gmbh | Koaxialcigarette |
DE3901226C1 (xx) * | 1989-01-17 | 1990-07-26 | B.A.T. Cigarettenfabriken Gmbh, 2000 Hamburg, De |
-
1990
- 1990-12-05 AU AU67748/90A patent/AU635095B2/en not_active Ceased
- 1990-12-07 CA CA002031727A patent/CA2031727C/en not_active Expired - Fee Related
- 1990-12-11 FI FI906092A patent/FI94385C/fi not_active IP Right Cessation
- 1990-12-13 EP EP90313555A patent/EP0474940B2/en not_active Expired - Lifetime
- 1990-12-13 AT AT90313555T patent/ATE115369T1/de not_active IP Right Cessation
- 1990-12-13 DK DK90313555T patent/DK0474940T4/da active
- 1990-12-13 ES ES90313555T patent/ES2066157T5/es not_active Expired - Lifetime
- 1990-12-13 DE DE69015185T patent/DE69015185T3/de not_active Expired - Fee Related
- 1990-12-18 PL PL90288311A patent/PL166314B1/pl unknown
- 1990-12-20 HU HU908366A patent/HU212772B/hu not_active IP Right Cessation
- 1990-12-26 TR TR90/1210A patent/TR25717A/xx unknown
- 1990-12-26 RU SU904894124A patent/RU1836040C/ru active
- 1990-12-26 JP JP2414611A patent/JP2767322B2/ja not_active Expired - Fee Related
- 1990-12-26 KR KR1019900021735A patent/KR0175139B1/ko not_active IP Right Cessation
- 1990-12-28 NO NO905639A patent/NO176464C/no unknown
-
1995
- 1995-03-07 GR GR950400504T patent/GR3015326T3/el unknown
- 1995-10-19 HK HK162995A patent/HK162995A/xx not_active IP Right Cessation
-
1999
- 1999-12-15 GR GR990403230T patent/GR3032144T3/el unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101999755A (zh) * | 2010-12-17 | 2011-04-06 | 南通烟滤嘴有限责任公司 | 纸芯同轴滤棒 |
Also Published As
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US5622190A (en) | Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core | |
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