US3667479A - Cigarette with modified paper wrapper - Google Patents

Cigarette with modified paper wrapper Download PDF

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Publication number
US3667479A
US3667479A US3862A US3667479DA US3667479A US 3667479 A US3667479 A US 3667479A US 3862 A US3862 A US 3862A US 3667479D A US3667479D A US 3667479DA US 3667479 A US3667479 A US 3667479A
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Prior art keywords
cigarette
wrapper
modified
delivery
smoke
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Expired - Lifetime
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US3862A
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Robert A Sanford
Robert Reiner Johnson
Thomas Wade Summers
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Brown and Williamson Holdings Inc
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Brown and Williamson Tobacco Corp
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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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/025—Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
    • D21H5/14—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of cellulose fibres only
    • D21H5/16—Tobacco or cigarette paper

Definitions

  • An improved cigarette is prepared through use of a modified cigarette paper as a wrapper.
  • the wrapper is treated in preselected areas with a burn control additive, preferably a strong combustion supporting, oxidizing agent. When the burning coal reaches the area of treatment, the treated area is burned away, allowing for the passage of air through the opening created, during smoking of the cigarette.
  • This air entering through the opening dilutes the smoke stream and results in a substantial reduction in smoke substituents delivered on smoking of the cigarette, with a corresponding improvement in the organoleptic properties of the smoke.
  • the preselected areas on the wrapper are so arranged that larger areas are burned away as the burning coal proceeds from the tip of the cigarette toward the mouthpiece of the cigarette, so that increasing amounts of air are drawn into the tobacco column as smoking proceeds, and substituent delivery is correspondingly reduced in greater amounts as smoking proceeds, so as to provide for a more uniform constituent delivery.
  • the strong, combustion supporting, oxidizing agent may be sodium chlorate, sodium bromate, potassium chlorate, an alkali or alkaline earth metal perchlorate, sodium nitrite, potassium nitrite, ammonium perchlorate or nitric acid.
  • the burn accelerating agent is applied so as to cover 2 to 50 percent of the wrapper and in concentration constitutes A to 8 milligrams per square centimeter of the treated portion.
  • an improved cigarette has been developed whereby the constituent delivery is reduced, in the overall, and the constituent delivery, on a puff-by-puff basis has been made more generally uniform.
  • the invention is not so limited but can be applied, in general, to the reduction of constituent delivery.
  • the improved cigarette is formed by employing a modified paper as the cigarette wrapper.
  • This wrapper is modified by treatment in preselected areas so that portions of the wrapper, in advance of the burning coal, are burned away so as to provide openings in the wrapper.
  • air is drawn through these openings os as to dilute the smoke which is delivered through the butt end of the cigarette. This dilution results in a decrease in the constituent delivery and, correspondingly, improves the taste of the smoke in these latter puffs.
  • the constituent delivery from smoking of the tobacco near the tip end of the cigarettev is relatively low, it is generally preferable to leave the tip end untreated.
  • the cigarette paper wrapper is generally modified only in the one-third to two-third portion closest to the butt end of the cigarette.
  • the preferred method of providing the openings for passage of diluting air is through treatment of the paper wrapper, in preselected areas, with a strong combustion supporting, oxidizing agent.
  • FIG. 1 is a side elevational view of a cigarette having a burn accelerating agent applied to the cigarette paper wrapper in an interrupted triangular pattern;
  • FIG. 2 is a vertical sectional view taken along the line 2-2 of FIG. 1;
  • FIG. 3 is a side elevational view of a cigarette having a combustion additive applied to the paper wrapper in parallel, axially directed, interrupted strips of varying lengths;
  • FIG. 4 is a perspective view of a cigarette having a combustion modifying agent applied to the cigarette wrapper in the form of parallel spaced rings;
  • FIG. 5 is a side elevational view of a cigarette having a burn accelerating agent applied to the cigarette wrapper in a continuous spiral pattern, with the line interrupted at points, and with the amount of combustion additive increasing toward the butt end of the cigarette;
  • FIG. 6 is a perspective view of a cigarette having a combustion modifying additive applied to the cigarette paper wrapper in the form of semi-circular rings, the thickness of the rings increasing as the rings more closely approach the butt end of the cigarette;
  • FIG. 7 is a perspective view of a cigarette having a burn accelerating agent applied to the cigarette wrapper in the form of circular rings, the thickness of the rings increasing toward the mouthpiece end of the cigarette;
  • FIG. 8 is a side elevational view of a cigarette having a combustion modifying agent printed on the cigarette wrapper in such a manner that increasing amounts of the additive are placed on the paper as the pattern approaches the mouthpiece end;
  • FIG. 9 is a side elevational view of a cigarette wrapper treated with a combustion modifying agent, in a modified checkerboard pattern, with the density of treatment increasing toward the butt end of the cigarette;
  • FIG. 10 is a side elevational view of a cigarette wrapper treatment with a combustion modifying agent in a regular, modified checkerboard pattern
  • FIG. 1 1 is a graph illustrating the reduction in total particulate matter delivered employing a modified wrapper of the present invention when compared with a cigarette employing an unmodified wrapper.
  • the numeral 10 designates a cigarette having a wrapper modified in accordance with the present invention
  • the numeral 11 designates the butt or mouthpiece end of that cigarette. While the cigarette is illustrated, in each case, as one having a tip or filter, it is equally apparent that the present invention is applicable to plain, untipped cigarettes. However, in those instances where a leveling of the smoke constituent delivery is desired, that end of .the cigarette which will be closest to the butt or mouthpiece is the end which should be treated. When employing the modified wrapper of the present invention or untipped cigarettes, the wrapper at either end of the cigarette should be unmodified.
  • the preferred modification of the cigarette paper wrapper is a treatment of that wrapper with a strong, combustion supporting, oxidizing agent in preselected areas.
  • a strong, combustion supporting, oxidizing agent is sodium chlorate
  • other strong, combustion supporting, oxidizing agents can also be employed. These agents include potassium chlorate, alkali and alkaline earth metal perchlorates, such as, sodium, potas sium, and barium perchlorates, ammonium perchlorate, sodium bromate, sodium nitrate, and potassium nitrite, which are adsorbed on the wrapper, and nitric acid which may chemically be combined with the wrapper.
  • the amount of agent which is employed will vary, to some degree, with the particular paper which is employed in the wrapper and with the oxidizing agent employed. In may instances, however, the average amount of oxidizing agent employed will be approximately V4 to 8 milligrams per square centimeter of that portion of the wrapper to which the modifying agent is actually applied. In that portion of the wrapper which is actually modified, the strong combustion supporting, oxidizing agent, should actually occupy between about 2 and 50 percent of the wrapper area, and the points of application should be distributed throughout the modified portion. Preferably, the area so occupied should be from about 25 to 45 percent. With sodium chlorate, the concentration is preferably at least 0.4 mg./cm.”.
  • the amount of agent employed to modify the wrapper should be varied in different areas of the wrapper, e.g., greater amounts may be employed in the area closest to the butt or mouthpiece, than are employed in the areas more remote from the butt or mouthpiece.
  • the burn accelerating agent acts to cause the cigarette paper wrapper in that area to burn more rapidly than the surrounding wrapper, and in advance of the coal.
  • sodium chlorate for example, the rapid burning of the paper is caused by the decomposition of the sodium chlorate into sodium chloride and oxygen.
  • an opening is created in the wrapper in the treated area.
  • air is draw in through these openings created in the treated area and the smoke drawn through the cigarette is diluted by this air, resulting in a decrease in the smoke constituent delivery. It may be desirable, in some instances, to accentuate this creation of openings.
  • Such an accentuation may be accomplished by modifyingv those areas of the paper not treated with the strong, combustion supporting, oxidizing agent, which acts as a burn accelerator, with a burn retardant. In this manner, the burn accelerating efiect of the strong, combustion supporting, oxidizing agent is increased.
  • a cigarette is shown where the paper wrapper is modified by treatment of preselected areas 13, 14 and of wrapper 12 with a burn accelerating agent.
  • the overall patter created by areas 13, 14 and 15 is of an elongated triangle, interrupted at points.
  • the areas 13 and 14 are in a trapezoidal form, with the larger base in the direction of the butt or mouthpiece.
  • these areas 13, 14 nd 15 are the areas in which openings will be created because of a burning away of the paper caused by the burn accelerating agent and advancing coal, it will be noted that a larger opening is created as the portion of the cigarette being smoked more closely approaches the butt end.
  • the delivery of smoke constituents increases toward the butt end, and this increase in the treated area toward that end results in a general evening of smoke constituent delivery throughout the length of the cigarette. It will also be noted that the tip end of the cigarette is untreated.
  • FIG. 2 is a vertical sectional view taken along the line 2-2 of FIG. 1 and shows tobacco section encased in wrapper 12, with a layer of oxidizing agent 15 adhered to wrapper 12.
  • This is merely a schematic representation of the treated area and, in actual application, the oxidizing agent may be absorbed or adsorbed by the paper such that a sectional view of the cigarette would not shown an actual layer of the oxidizing agent layer.
  • FIG. 3 is an embodiment of the invention in which the oxidizing agent is applied to wrapper 12 in the form of parallel rectangular strips 22, 23 and 24, which are formed in the axial direction of the cigarette and are interrupted along the lengths. It is to be noted that the strip 24 is shorter than strips 22 and 23, so that the burn accelerating agent is present in increasing amounts toward mouthpiece 1 1.
  • FIG. 4 A further embodiment of the invention is illustrated in FIG. 4 where the oxidizing agent is applied to wrapper 12 in the form of spaced, circular rings, 26, 27, 28, 29 and 30. Rings 26, 27 and 28, closest to the mouthpiece end of the cigarette, are spaced closer together so as to compensate for the increase in delivery of smoke constituents delivered with pufis nearer the mouthpiece end of the cigarette.
  • FIG. 5 represents another embodiment of the present invention showing the burn accelerating agent applied to wrapper 12 in the form of a continuous spiral 21, interrupted along its length.
  • the width of the spiral band increases as the band more closely approaches the mouthpiece end 11.
  • FIG. 6 Semi-circular rings 31, 32, 33 and 34 formed by treatment with burn accelerating agent are employed in FIG. 6. These semi-circular rings increase, respectively, in thickness as the ring is closer to the mouthpiece end 11. A similar form of treatment is shown in FIG. 7, where the rings encircle the entire circumference of the wrapper.
  • Printed letters are employed in FIG. 8 as the form of application of the burn accelerating agent, these letters being represented by the numeral 38. Again, the size of the letters closest the mouthpiece end 1 l is larger than the size of the letters which are closer to the tip or end of the cigarette which is to be lighted.
  • FIG. 9 a preferred embodiment of the present invention is presented in which the burn accelerating agent is applied in a modified checkerboard pattern as illustrated.
  • the pattern employs alternate rows of larger rectangular areas 39 and smaller rectangular areas 40.
  • the sizes of the rectangular areas 41 and 42, closest to the butt or mouthpiece end of the cigarette are larger and they are more closely spaced than are the rectangular areas 39 and 40.
  • FIG. 10 a further preferred embodiment of the present invention is shown, employing a different type of modified checkerboard pattern.
  • alternate rows of large squares 46 and small squares 47 of oxidizing agent are placed on the wrapper so as to modify it.
  • the form of the pattern is constant throughout the length of the application, and the rows of large squares 49 and small squares 50 nearest the butt or mouthpiece end of the cigarette are the same as the size of the similar rows 46 and 47 nearest the end of the cigarette to be lighted.
  • the spacing of these rows is the same throughout the length of the treated area of the cigarette wrapper.
  • Increased concentration of the burn control additive is achieved, with this design, by increasing the amount of additive in each given area as the treated area more closely approaches the butt end of the cigarette.
  • FIG. 11 A comparison of the total particulate matter delivery, on a pufi-by-puff basis, is illustrated in FIG. 11.
  • a plot of the total particulate matter delivered with a cigarette having a wrapper modified as illustrated in FIGS. 1 and 3 through 9 is shown by Line 51, while similar data are plotted as Line 52 for a standard cigarette, with an unmodified wrapper.
  • the total particulate matter delivered in the first pufl is relatively low. Essentially, with each succeeding puff, the delivery of total particulate matter increases, with a sharp rise in the delivery of such total particulate matter between the sixth and ninth puffs.
  • an application of sodium chlorate produces a pattern which is substantially invisible after the application solvent has evaporated.
  • Such a visible treatment might be particularly desirable in the case of those embodiments illustrated in FIGS. 8, 9 and 10.
  • a dye such as a vegetable dye, might be incorporated into the treating solution, so that after the solvent has evaporated, the area in which the strong, combustion supporting, oxidizing agent, such as sodium chlorate, remains, is colored so as to make it visible.
  • a felt pad can be cut into the particular design desired, saturated with a solution of the treating agent, and applied to the cigarette paper.
  • a fully formed cigarette can be rolled on the pad, in order to cover the entire circumference of the cigarette, or the flattened piece of paper wrapper can be impressed with the saturated felt pad and, after the solvent has evaporated, the wrapper can be applied to a tobacco rod in order to form the finished cigarette.
  • a variety of application methods can be employed, as known in the art, either to the wrapper paper, prior to application to the tobacco rod, or to the finished cigarette. For example, gravure printing can be used.
  • Gravure printing is particularly useful when it is desired to vary the concentration of the strong, combustion supporting, oxidizing agent in different areas of the wrapper.
  • the concentration of this modifying agent can be varied.
  • the amount of modifying agent present on the wrapper will be greater closest to the butt or mouthpiece end of the cigarette. While the various figures show this being accomplished through increasing the percentage of wrapper actually occupied by the modifying agent, similar results can be achieved through employing a non-varying pattern, such as illustrated in FIG. 10, but increasing the concentration of the modifying agent toward the butt or mouthpiece end.
  • gravure printing is a preferred method for accomplishing this, other techniques known in the art can also be employed, and the use of gravure printing is not limited to applying varying concentrations of modifying agent.
  • the examples below will illustrate treatments according to the present invention and the reduction in smoke constituent delivery achieved.
  • the cigarettes employing the modified wrapper of the present invention and the control cigarettes were smoked on smoking machines commonly employed in the art as, for example, the Mason Smoking Machine which was employed for testing in certain of the examples.
  • the smoking machine tool a puff of 35 ml. volume over a period of 2 seconds, with one puff each minute.
  • EXAMPLE 1 Five hundred standard, king-size untipped cigarettes of equal weight (plus or minus 2 percent) were divided into two groups. in the first group, the 50 percent of the wrapper closest to the mouthpiece end was treated with a 50 percent water solution of sodium chlorate, in the pattern illustrated in FIG. 1, in order to provide approximately 3 milligrams of sodium chlorate per cigarette wrapper. The concentration of treatment was thus about 1-2 mg. per square centimeter on the approximately percent of the wrapper which was modified. The treated area of the cigarettes of the first group was reached after the fourth putt" on the smoking machine. Table 1 illustrates the delivery of total particulate matter by the treated and untreated cigarettes, on average.
  • TPM stands for total particulnte matter.
  • EXAMPLE 2 The necessity for the strong, combustion supporting, oxidizing agents of the present invention is illustrated by comparison with a cigarette having a wrapper modified in the same manner as the present invention, but employing ammonium nitrate. This is the treatment agent described in U.S. Pat. No. 3,285,253 Lebert for the purpose of reducing the temperature of air contacting the tobacco. While that patent describes the charring of the paper wrapper in advance of the burning coal, it does not suggest the provision of an opening through which diluting air passes during a puff on the cigarette.
  • 50 standard, king-sized, filter cigarettes had wrappers modified for each modifying agent and concentration of modification, and the results reported in Table III are an average of the results from these 50 cigarettes in each case.
  • the modifying agents in each case were applied to the cigarette wrapper in the pattern illustrated in FIG. 9. Approximately two-thirds of the wrapper area was so modified and approximately 40 percent of that portion of the wrapper had the modifying agent applied. The concentration at the point of application was about 1.25 mg./cm. when 50 percent solutions were applied.
  • the first control was the same type of cigarette employed for both the ammonium nitrate and sodium chlorate wrapper modifications, but to which no modifying agent of any kind was applied.
  • the second type of control was, again, the same type of cigarette, but this cigarette was treated with the modified checkerboard pattern of FIG. 9, as used for the ammonium nitrate and sodium chlorate wrapper modified cigarettes, but the applied material was water, with no added oxidizing agent.
  • a cigarette employing a modified wrapper has been illustrated whereby a reduction in the total delivery of various smoke constituents can be achieved. Further, by proper application of the treatment, the amounts of these smoke constituents delivered on a puff-by-puff basis can approach uniformity.
  • a cigarette having a tobacco rod surrounded by a uniform, imperforate paper wrapper
  • the improvement which comprises modification of the wrapper by treatment of said wrapper in a plurality of specific, separated areas, with a strong, combustion supporting, oxidizing agent, the amount of said oxidizing agent being greater closest to the butt end of the cigarette, and lesser nearer the tip end of the cigarette, the burn accelerating agent covering from 2 to 50 percent of the portion treated, said oxidizing agent being selected from the group consisting of sodium chlorate, sodium bromate, potassium chlorate, alkali and alkaline earth metal perchlorates sodium nitrite, potassium nitride, ammonium perchlorate and nitric acid and being applied in amounts of from 1/4 to 8 milligrams per square centimeter in that treated portion, whereby,
  • 1 Tar is TPM except for Water and nictotine.
  • EXAMPLE 3 A group of 100 standard, king-sized filter cigarettes were; selected, the weight of the cigarettes varying by no more than i fl percent. One-half of these cigarettes had no modification f of the wrapper and were retained as a control. The other half of the cigarettes had wrappers modified with two applications of 50 percent sodium chlorate solutions in the pattern illus-' trated in FIG. 9. These cigarettes were smoked on a smoking machine, as in the prior examples, and the sodium chlorate wrapper modified cigarettes showed a reduction in tar of 39 percent, when compared with the control, and a 43 percent in carbon monoxide, when compared with the control.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
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US3862A 1970-01-19 1970-01-19 Cigarette with modified paper wrapper Expired - Lifetime US3667479A (en)

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BE (1) BE761756A (xx)
BR (1) BR7100230D0 (xx)
CH (1) CH536609A (xx)
DE (1) DE2101597A1 (xx)
FR (1) FR2077209B1 (xx)
GB (1) GB1255290A (xx)
NL (1) NL7100617A (xx)
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Cited By (31)

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US3805799A (en) * 1972-07-17 1974-04-23 Philip Morris Inc Cigarette ventilation achieved with coated wrapper
US3911932A (en) * 1974-07-31 1975-10-14 Philip Morris Inc Control of smoking delivery through cigarette paper porosity
US4077414A (en) * 1975-01-09 1978-03-07 Brown & Williamson Tobacco Corporation Smoking articles
US4452259A (en) * 1981-07-10 1984-06-05 Loews Theatres, Inc. Smoking articles having a reduced free burn time
US4461311A (en) * 1981-12-24 1984-07-24 Kimberly-Clark Corporation Method and smoking article wrapper for reducing sidestream smoke
FR2550422A1 (fr) * 1983-08-08 1985-02-15 Kimberly Clark Co Enveloppe pour article a fumer a extinction automatique et article tel que cigarette fabrique avec cette enveloppe
US4622983A (en) * 1983-08-08 1986-11-18 Kimberly-Clark Corporation Reduced ignition proclivity smoking article wrapper and smoking article
US4941485A (en) * 1989-04-18 1990-07-17 R. J. Reynolds Tobacco Company Cigarette
US5220930A (en) * 1992-02-26 1993-06-22 R. J. Reynolds Tobacco Company Cigarette with wrapper having additive package
EP0870437A3 (en) * 1997-03-11 1999-02-03 Schweitzer-Mauduit International, Inc. Smoking article wrapper for controlling ignition proclivity of a smoking article without affecting smoking characteristics
US20010003049A1 (en) * 1996-07-12 2001-06-07 Norio Fukasawa Method and mold for manufacturing semiconductor device, semiconductor device, and method for mounting the device
US20030089377A1 (en) * 2001-11-15 2003-05-15 Mohammad Hajaligol Cigarette paper having heat-degradable filler particles, and cigarette comprising a cigarette paper wrapper having heat-degradable filler particles
US6701936B2 (en) * 2000-05-11 2004-03-09 Philip Morris Incorporated Cigarette with smoke constituent attenuator
US20040255966A1 (en) * 2002-01-23 2004-12-23 Kraker Thomas A. Smoking articles with reduced ignition proclivity characteristics
US20040261805A1 (en) * 2002-04-30 2004-12-30 Brown & Williamson Tobacco Corporation Smoking article
US20050039767A1 (en) * 2002-11-19 2005-02-24 John-Paul Mua Reconstituted tobacco sheet and smoking article therefrom
US20050056294A1 (en) * 2002-11-19 2005-03-17 Wanna Joseph T. Modified reconstituted tobacco sheet
CN1292685C (zh) * 2000-11-13 2007-01-03 旋韦策-莫杜伊特国际公司 生产具有降低的引燃倾向性的烟制品的方法及其产品
EP2617301A1 (en) * 2007-05-24 2013-07-24 Philip Morris Products S.A. Smoking article with novel wrapper
US8701682B2 (en) 2009-07-30 2014-04-22 Philip Morris Usa Inc. Banded paper, smoking article and method
US8707967B2 (en) 2006-03-31 2014-04-29 Philip Morris Usa Inc. Banded papers, smoking articles and methods
DE102013106516B3 (de) * 2013-06-21 2014-10-09 Delfortgroup Ag Zigarettenpapier, das einer zigarette ein gleichmässiges zugprofil verleiht
US9302522B2 (en) 2010-12-13 2016-04-05 Altria Client Services Llc Process of preparing printing solution and making patterned cigarette wrappers
USD771865S1 (en) * 2013-03-26 2016-11-15 Kind Consumer Limited Wrap for nicotine inhaler
EP2623669A4 (en) * 2010-09-29 2017-02-15 Japan Tobacco, Inc. Low ignition propensity wrapping paper manufacturing machine, low ignition propensity wrapping paper and cigarette
US9668516B2 (en) 2012-05-16 2017-06-06 Altria Client Services Llc Banded cigarette wrapper with opened-area bands
US10375988B2 (en) 2010-12-13 2019-08-13 Altria Client Services Llc Cigarette wrapper with novel pattern
US10588341B2 (en) 2013-12-11 2020-03-17 Schweitzer-Mauduit International, Inc. Wrappers for smoking articles
US10905154B2 (en) 2011-05-16 2021-02-02 Altria Client Services Llc Alternating patterns in cigarette wrapper, smoking article and method
US11064729B2 (en) 2012-05-16 2021-07-20 Altria Client Services Llc Cigarette wrapper with novel pattern
US11707082B2 (en) 2010-12-13 2023-07-25 Altria Client Services Llc Process of preparing printing solution and making patterned cigarette wrapper

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IE48028B1 (en) * 1977-09-16 1984-09-05 Gallaher Ltd Smoking rod wrapper
US4295478A (en) * 1979-04-11 1981-10-20 Rjr Archer, Inc. Composite tipping structure for use on an air-ventilated cigarette and method of manufacturing same
GB8308531D0 (en) * 1983-03-29 1983-05-05 British American Tobacco Co Marking of smoking article wrappings

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US2836183A (en) * 1954-11-19 1958-05-27 Harold C Fay Cigarette
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Cited By (63)

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Publication number Priority date Publication date Assignee Title
US3805799A (en) * 1972-07-17 1974-04-23 Philip Morris Inc Cigarette ventilation achieved with coated wrapper
US3911932A (en) * 1974-07-31 1975-10-14 Philip Morris Inc Control of smoking delivery through cigarette paper porosity
US4077414A (en) * 1975-01-09 1978-03-07 Brown & Williamson Tobacco Corporation Smoking articles
US4452259A (en) * 1981-07-10 1984-06-05 Loews Theatres, Inc. Smoking articles having a reduced free burn time
US4461311A (en) * 1981-12-24 1984-07-24 Kimberly-Clark Corporation Method and smoking article wrapper for reducing sidestream smoke
DE3310092A1 (de) * 1981-12-24 1984-09-27 Kimberly-Clark Corp., Neenah, Wis. Huellenmaterial zur verringerung von seitenstrom-rauch und verfahren zu dessen herstellung
US4622983A (en) * 1983-08-08 1986-11-18 Kimberly-Clark Corporation Reduced ignition proclivity smoking article wrapper and smoking article
DE3429260C2 (de) * 1983-08-08 2002-12-12 Kimberly Clark Co Umhüllungen für Rauchwaren
EP0139934A1 (en) * 1983-08-08 1985-05-08 Kimberly-Clark Corporation Wrapper constructions for self-extinguishing smoking articles
US4615345A (en) * 1983-08-08 1986-10-07 Kimberly-Clark Corporation Wrapper constructions for self-extinguishing smoking articles
FR2550422A1 (fr) * 1983-08-08 1985-02-15 Kimberly Clark Co Enveloppe pour article a fumer a extinction automatique et article tel que cigarette fabrique avec cette enveloppe
DE3429260A1 (de) * 1983-08-08 1985-02-21 Kimberly-Clark Corp., Neenah, Wis. Umhuellungsaufbauten fuer selbstausloeschende rauchwaren
US4941485A (en) * 1989-04-18 1990-07-17 R. J. Reynolds Tobacco Company Cigarette
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Also Published As

Publication number Publication date
ZA71168B (en) 1971-12-29
GB1255290A (en) 1971-12-01
BR7100230D0 (pt) 1973-08-28
CH536609A (fr) 1973-05-15
SE369370B (xx) 1974-08-26
FR2077209B1 (xx) 1973-06-08
NL7100617A (xx) 1971-07-21
DE2101597A1 (de) 1971-07-29
BE761756A (fr) 1971-07-19
FR2077209A1 (xx) 1971-10-22

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