AU2078800A - Cigarette - Google Patents
Cigarette Download PDFInfo
- Publication number
- AU2078800A AU2078800A AU20788/00A AU2078800A AU2078800A AU 2078800 A AU2078800 A AU 2078800A AU 20788/00 A AU20788/00 A AU 20788/00A AU 2078800 A AU2078800 A AU 2078800A AU 2078800 A AU2078800 A AU 2078800A
- Authority
- AU
- Australia
- Prior art keywords
- paper
- cigarette
- cellulose derivative
- wrapper
- cellulose
- 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.)
- Granted
Links
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 29
- 229920002678 cellulose Polymers 0.000 claims abstract description 13
- 239000001913 cellulose Substances 0.000 claims abstract description 12
- 230000035699 permeability Effects 0.000 claims abstract description 12
- 239000001856 Ethyl cellulose Substances 0.000 claims abstract description 6
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920001249 ethyl cellulose Polymers 0.000 claims abstract description 6
- 235000019325 ethyl cellulose Nutrition 0.000 claims abstract description 6
- 241000208125 Nicotiana Species 0.000 claims abstract description 5
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 5
- 238000005470 impregnation Methods 0.000 claims abstract description 5
- 239000005871 repellent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000002940 repellent Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 239000000779 smoke Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000000796 flavoring agent Substances 0.000 description 3
- 235000019634 flavors Nutrition 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 1
- -1 alkyl ketene dimer Chemical compound 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000013101 initial test Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
- A24D1/00—Cigars; Cigarettes
- A24D1/02—Cigars; Cigarettes with special covers
Landscapes
- Paper (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The cigarette has its tobacco strand wrapped around with a layer of paper with water-repellent impregnation made from cellul derivatives to obtain air permeability in the wrapper and avoid spotting on the wrapper. The cigarette has its tobacco strand wrapped around with a layer of paper with water-repellent impregnation made from a cellulose derivative, preferably ethyl cellulose, to obtain air permeability in wrapper of at least 20 Coresta units, preferably at least Coresta units. The cellulose derivative is applied in several layers.
Description
P/00/01Il Regulation 3.2
AUSTRALIA
Patents Act 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT
ORIGINAL
too.
Name of Applicant: TANN-PAPIER GESELLSCHAFT M.B.H.
000.0 Actual Inventor: Giinther Diirhammer Address for Service: CALLINAN LAWRIE, 711 High Street, Kew, Victoria 3101, Australia Invention Title: CIGARETTE The following statement is a full description of this invention, including the best method of performing it known to me:- 08/03100,tdl II 76.c, la- The invention is based on the problem of avoiding spotting on the wrappers of cigarettes.
The buyers of cigarettes consider the spotless white appearance of a cigarette as an indication of quality. Even if this opinion is not particularly correct in hot, humid climates cigarettes can show discoloration even after a short period of storage, which does not affect the smoke flavour manufacturers have to focus upon market expectations.
.Spotting of cigarette paper can be explained in that dissolved substances contained in the tobacco can penetrate the paper at the points of contact between the paper and the tobacco particles, as said paper is both porous and hydrophilic.
It would be conceivable to reduce spotting on cigarette paper in that said paper is coated with any substances that would make the paper completely impervious. Such coatings have been proposed in order to effect rapid extinguishing of discarded cigarettes. In order to be able to control the content of different substances contained in the smoke, however, the cigarette manufacturer is generally interested in a certain degree of air permeability of the cigarette paper. The problem is consequently to, on the one hand, keep the paper permeable for air, and on the other hand to reduce the permeability for dissolved cigarette ingredients.
For solving the problem, US-A 5,143 099 proposed to form the cigarette wrapper using two layers of paper, wherein the inner wrapper is provided with a very high degree of permeability, so that the ovc.all permeability remains sufficient. In this context, the possibility of making the inner wrapper water repellent by adding alkyl ketene dimer was mentioned.
In comparison with the prior art described, the object of the invention is to make the use of two layers of paper superfluous, this being by means of an impregnating agent that is harmless and changes the smoke flavour as little as possible.
It was unexpected that providing the cigarette with a wrapper that comprises a layer of paper with water repellent impregnation made from a cellulose derivative, in particular of ethyl cellulose, would lead to a solution of the object. EP 0 419 981 does describe such a cigarette, in which, however, the air permeability is below 5 Coresta units.
The invention is based on the recognition that the impregnation can be sufficiently thin to retain the desired air permeability, if it is applied in several layers. It is thus provided according to the invention that the cellulose derivative is applied in several layers in order to obtain an air permeability in the wrapper of at least 20, preferably Coresta units.
o. Different cellulose derivatives per se satisfy the physical criteria required with respect to air permeability and water permeability in the impregnated paper, for example, sufficiently highly derived cellulose ether and cellulose ester (for example, :..-•nitrocellulose). Ethyl cellulose is preferred, however, as it is harmless it complies "with the German regulations and makes practically no change to the smoke flavour.
0* Further details of the invention will be discussed hereinafter with reference to comparative tests.
Cigarette papers with a substance of 26g/m 2 were coated, in a gravure process by means of a coating roller, with cellulose azetoproprionate (CAP) or with cellulose azetobutyrate (CAB) or with ethyl cellulose The amount applied was approximately 0.7 g/m 2 Cigarettes were manufactured with the cigarette paper manufactured in this way.
In order to test their spotting tendency, the cigarettes were stored packaged and unpackaged at either 20°C and 60% relative humidity or 30 0 C and 80% relative humidity. Examination for spotting (in each case 100 cigarettes) was carried out immediately after production and after 24 and 48 hours. An evaluation was made according to spot size and number, and the results were converted, by means of weighting, into a point system.
The evaluation produced the following results: Coating with 0.7 g EC 572 points Coating with 0.7 g CAP 223 points Coating with 0.7 g CAB 77 points Although ethyl cellulose coated paper showed a comparatively strong tendency for spotting (large number of spots), the further development was carried out with this material, as an undesired change in the smoke character was determined with CAP and S .i •CAB. Even with the use of EC coated paper, a significantly lower spotting frequency was nevertheless determined, compared with uncoated paper. After approximately one month, however, the cigarettes manufactured using paper coated with EC showed no dark spots, whereas large yellow spots appeared on those with uncoated paper. This is probably because coloring agents penetrate the paper through flaws in the coating, the spreading of which agents is prevented by the coating. Due to these observations, the tests were repeated with twice-coated paper, that is to say with cigarette paper loaded with 1.4 g/m 2 With this, the spotting tendency decreased, according to the method of calculation described hereinabove, to 56 points, that is to say it reduced by the power of 10 compared to the single coating. This excellent result was confirmed in long-term testing.
It is to be emphasised in particular that the success described was obtained even though the porosity of the paper, which was 50 Coresta units before coating, was still Coresta units after coating. Initial tests with more porous paper as the starting material confirm that even with a final porosity of 50 Coresta units, the radical reduction in the tendency to spot, according to the invention, was obtained. (One Coresta unit (CU) indicates how many cm 2 of air flow per minute through an area of 1 cm 2 of paper under pressure of a 10 cm head of water.)
Claims (5)
1. Cigarette, the tobacco strand of which is wrapped around with a layer of paper with water repellent impregnation made from a cellulose derivative, preferably of ethyl cellulose, wherein in order to obtain air permeability in the wrapper of at least 20 Coresta units, preferably at least 50 Coresta units, the cellulose derivative is applied in several layers.
S2. Cigarette according to claim 1, wherein the cellulose derivative is applied on both sides of the paper.
3. Cigarette according to claim 1 or 2, wherein the cellulose derivative is applied in a quantity of at least 1 g/m 2 *se *0-
4. Cigarette according to one of claims 1 to 3, wherein the cellulose derivative is applied by means of a coating roller in a gravure process. 20
5. Cigarette according to one of claims 1 to 4, wherein the wrapper is composed S of only one layer of paper, Dated this 9 h day of March, 2000. TANN-PAPIER GESELLSCHAFT M.B.H By their Patent Attorneys: CALLINAN LAWRIE
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99105581A EP1044615B1 (en) | 1999-03-13 | 1999-03-13 | Cigarette |
| GB99105581 | 1999-03-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2078800A true AU2078800A (en) | 2000-09-21 |
| AU762319B2 AU762319B2 (en) | 2003-06-26 |
Family
ID=8237800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU20788/00A Ceased AU762319B2 (en) | 1999-03-13 | 2000-03-09 | Cigarette |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP1044615B1 (en) |
| CN (1) | CN1132533C (en) |
| AT (1) | ATE250871T1 (en) |
| AU (1) | AU762319B2 (en) |
| BR (1) | BR0001272B1 (en) |
| CA (1) | CA2300715A1 (en) |
| DE (1) | DE59907190D1 (en) |
| ES (1) | ES2202946T3 (en) |
| MY (1) | MY125835A (en) |
| RU (1) | RU2197876C2 (en) |
| UA (1) | UA65583C2 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0514959D0 (en) * | 2005-07-21 | 2005-08-24 | British American Tobacco Co | Smoking article |
| CN101803801B (en) * | 2010-04-07 | 2013-05-08 | 黑龙江烟草工业有限责任公司 | Humectant for smoke |
| AT511936B1 (en) | 2011-12-01 | 2013-04-15 | Tannpapier Gmbh | MUNDSTÜCKBELAGSPAPIER FOR A SMOKE ITEM |
| AT512347B1 (en) | 2011-12-23 | 2013-09-15 | Tannpapier Gmbh | AS A FILM TRAINED MOUTHPIECE OF A FILTER CIGARETTE |
| AT513412B1 (en) | 2012-09-17 | 2014-07-15 | Tannpapier Gmbh | Tipping paper |
| AT513413B1 (en) | 2012-09-17 | 2014-12-15 | Tannpapier Gmbh | Layered composite on a smoking article |
| KR102215329B1 (en) * | 2013-07-16 | 2021-02-16 | 필립모리스 프로덕츠 에스.에이. | Smoking article filter for easy extinguishing |
| KR102252616B1 (en) * | 2013-07-19 | 2021-05-20 | 필립모리스 프로덕츠 에스.에이. | Hydrophobic paper |
| AT514862B1 (en) | 2013-09-27 | 2015-06-15 | Tannpapier Gmbh | coating process |
| NO2768923T3 (en) | 2014-10-20 | 2018-05-05 | ||
| ES2635071T3 (en) * | 2014-10-20 | 2017-10-02 | Philip Morris Products S.A. | Hydrophobic Cap Wrap |
| TWI682727B (en) | 2014-12-23 | 2020-01-21 | 瑞士商菲利浦莫里斯製品股份有限公司 | Hydrophobic rolling paper |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3663260D1 (en) * | 1985-02-28 | 1989-06-15 | Gallaher Ltd | Printing inks and printed substrates |
| US4941486A (en) * | 1986-02-10 | 1990-07-17 | Dube Michael F | Cigarette having sidestream aroma |
| FR2650735B1 (en) | 1989-08-14 | 1991-11-29 | Mauduit Papeteries | PROCESS FOR REDUCING OR ELIMINATING SPOT FORMATION ON A CIGARETTE, CIGARETTE AND CIGARETTE PAPER RELATING TO THE PROCESS |
| US5105836A (en) * | 1989-09-29 | 1992-04-21 | R. J. Reynolds Tobacco Company | Cigarette and smokable filler material therefor |
| RU16819U1 (en) * | 2000-11-15 | 2001-02-20 | Булгаков Сергей Владимирович | SMOKING PRODUCT |
-
1999
- 1999-03-13 DE DE59907190T patent/DE59907190D1/en not_active Expired - Lifetime
- 1999-03-13 AT AT99105581T patent/ATE250871T1/en active
- 1999-03-13 EP EP99105581A patent/EP1044615B1/en not_active Expired - Lifetime
- 1999-03-13 ES ES99105581T patent/ES2202946T3/en not_active Expired - Lifetime
-
2000
- 2000-03-09 AU AU20788/00A patent/AU762319B2/en not_active Ceased
- 2000-03-10 CN CN00103866.4A patent/CN1132533C/en not_active Expired - Fee Related
- 2000-03-10 CA CA002300715A patent/CA2300715A1/en not_active Abandoned
- 2000-03-10 RU RU2000106117/13A patent/RU2197876C2/en not_active IP Right Cessation
- 2000-03-10 UA UA2000031410A patent/UA65583C2/en unknown
- 2000-03-10 BR BRPI0001272-6A patent/BR0001272B1/en not_active IP Right Cessation
- 2000-03-11 MY MYPI20000967A patent/MY125835A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA2300715A1 (en) | 2000-09-13 |
| EP1044615B1 (en) | 2003-10-01 |
| BR0001272A (en) | 2001-03-13 |
| ES2202946T3 (en) | 2004-04-01 |
| ATE250871T1 (en) | 2003-10-15 |
| MY125835A (en) | 2006-08-30 |
| DE59907190D1 (en) | 2003-11-06 |
| AU762319B2 (en) | 2003-06-26 |
| CN1266656A (en) | 2000-09-20 |
| EP1044615A1 (en) | 2000-10-18 |
| CN1132533C (en) | 2003-12-31 |
| RU2197876C2 (en) | 2003-02-10 |
| UA65583C2 (en) | 2004-04-15 |
| BR0001272B1 (en) | 2010-07-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) |