WO2013076128A1 - Procédé d'application d'une matière d'application sur une toile de base pendant la fabrication du papier - Google Patents

Procédé d'application d'une matière d'application sur une toile de base pendant la fabrication du papier Download PDF

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Publication number
WO2013076128A1
WO2013076128A1 PCT/EP2012/073204 EP2012073204W WO2013076128A1 WO 2013076128 A1 WO2013076128 A1 WO 2013076128A1 EP 2012073204 W EP2012073204 W EP 2012073204W WO 2013076128 A1 WO2013076128 A1 WO 2013076128A1
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WO
WIPO (PCT)
Prior art keywords
add
percent
base web
fibrous material
calcium carbonate
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.)
Ceased
Application number
PCT/EP2012/073204
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English (en)
Inventor
Szu-Sung Yang
Lukas HOTTINGER
Ping Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philip Morris Products SA
Original Assignee
Philip Morris Products SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philip Morris Products SA filed Critical Philip Morris Products SA
Publication of WO2013076128A1 publication Critical patent/WO2013076128A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/005—Treatment of cigarette paper
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/25—Cellulose
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/385—Oxides, hydroxides or carbonates
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/02—Material of vegetable origin
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/52—Cellulose; Derivatives thereof
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/54—Starch
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Definitions

  • the present invention relates to methods of making a web such as paper.
  • the methods finds application in the manufacture of paper comprising one or more areas of add-on material, such as cigarette paper having bands or other patterns of add-on materials.
  • the present invention also relates to paper wrappers for a smoking article and to smoking articles.
  • Smoking articles such as cigarettes can be provided with wrappers of paper or other web material having bands or other patterns of add-on materials such as cellulosic material or polymers such as starch to influence the burn behaviour of the cigarettes.
  • the add-on materials can prevent the smoking articles from continuing to smoulder when they are placed on a substrate, while continuing to burn under normal smoking conditions.
  • the tendency of smoking articles to cause a substrate on which they lie to burn is known as ignition propensity (IP).
  • IP ignition propensity
  • the ignition propensity should be low to reduce the likelihood of a smoking article causing a substrate on which it is placed to burn.
  • the ignition propensity may be measured according to ISO 12863:2010(E).
  • SE free burn self extinguishment
  • reduced cigarette ignition propensity paper is formed by applying add-on material during the paper manufacturing process.
  • finished paper web is converted into reduced cigarette ignition propensity paper by applying add-on material to the paper web, for example in a printing or spray application.
  • a method of applying at least one area of addon material to a base web comprising providing a slurry of fibrous material in a liquid, forming a base web of fibrous material and liquid from the slurry, applying at least one area of add-on material comprising fibrous material and from about 25 percent calcium carbonate to about 140 percent by weight of the fibrous material to the base web, the base web having a liquid content of between about 20 percent and about 98 percent by weight when the add-on material is applied, and drying the base web with the add-on material thereon.
  • the base web At the location at which the add-on material is applied to the base web, the base web retains sufficient moisture content, approximately 20 percent to 98 percent by weight, preferably 85 percent to 98 percent by weight, that the add-on solution is able to adhere to the base web.
  • the add-on material comprises fibrous material and between about 30 percent to about 80 percent of calcium carbonate by dry weight of the fibrous material.
  • the level at which the addition of calcium carbonate has a significant effect is lower in the paper manufacturing process according to the first technique described above than in the conversion process according to the second technique.
  • the lower threshold for the level of calcium carbonate is about 25 percent by dry weight of the fibrous material, whereas in the printing process, the level of calcium carbonate is about 35 percent by dry weight of the film forming solution. This means that less calcium carbonate is required to achieve the desired effect.
  • the self extinguishment can actually be improved with a fibrous material/calcium carbonate add-on material composition over a film forming/calcium carbonate solution at the same levels of calcium carbonate.
  • this positive effect is due to a better integration of the add-on material into the base web during the paper manufacturing process where the base web has still a high water content, like for example between 20 percent and 98 percent, and the calcium carbonate particles of the add-on material can move more freely to settle, even into the base paper. It is believed that this leads to a more homogenous structure of the areas of the wrapper that comprise add-on material. Therefore, during the paper making stage, the porosity of the web in the area of the add-on material can be better controlled across the entire thickness of the area of the add-on material than after the paper has already been fully dried and add-on material is applied at a later stage, for example by printing.
  • the porosity of the paper wrapper is relevant to controlling the amount of oxygen to the advancing combustion zone of the cigarette. If oxygen cannot sufficiently reach the combustion zone of the cigarette, the cigarette will extinguish.
  • the calcium carbonate has a mean particle size of between about 50 nm to about 90 nm (nanometers).
  • a suitable calcium carbonate is commercially available, for example from Solvay Chemicals, Inc., as SOCAL31®.
  • SOCAL31® is an ultra fine, precipitated form of calcium carbonate having a mean particle size of about 70 nm.
  • the mean particle size is measured according to the LEA & NURSE method, wherein the air permeability of a pressed tablet of calcium carbonate is measured.
  • Calcium carbonate particles with a mean particle size of over 90 nm are less preferred than the ultra fine, precipitated form of calcium carbonate, as larger particles may precipitate from the slurry more quickly. This could be disadvantageous as it may require the use of greater quantities.
  • smaller particles than 50 nm are not retained well on the base web material and are more likely to pass through the base web material.
  • the base web has a liquid content of between about 20 percent and about 98 percent by weight in the when the add-on material is applied, preferably between about percent 50 and 95 percent.
  • the liquid is water.
  • the add-on material is applied downstream of the wet line of the base web.
  • the base web comprises between about 20 percent to about 30 percent of calcium carbonate as a filler material.
  • the add-on material is preferably slurry or a suspension comprising calcium carbonate and fibrous material, such as cellulose fibres, in a liquid carrier, preferably water.
  • the add-on material may be a colloid, or any other form that is sufficiently fluid to flow from the reservoir through an orifice and onto the base web, for example in a predefined pattern.
  • the slurry comprises highly refined flax or wood pulp with a weighted average fibre length in the flax slurry of between about 0.1 mm and about 0.5 mm.
  • the fibre length of the highly refined flax or wood pulp in the add-on material is a further parameter that can be used to control the porosity of the finished paper. It is believed that this is due to the tendency of the smaller fibres to fill in gaps in the liquid base layer during the paper making process.
  • the add-on material includes a film-forming material.
  • film forming materials are polymers, preferably natural polymers. Particularly preferred polymers are starch, oxidised starch, tapioca, alginate, carrageenan, guar gum, pectin and polyvinyl acetate. Where such a film-forming material is present, preferably the slurry comprises between about 20 percent to about 100 percent of film-forming material by weight of the fibrous material.
  • the addition of film forming material may improve the integrity of the finished paper. Further, the film forming material may bind the calcium carbonate in the paper. This may, for example, prevent the formation of dust.
  • anti-wrinkling agent may be included in the add-on material.
  • Preferred anti- wrinkling agents are glycerin, propylene glycol and 1 ,2 propylene glycol. Glycerin and 1 ,2 propylene glycol are the most preferred anti-wrinkling agents.
  • An anti-wrinkling agent is preferably present at up to 100 percent of the total dry weight of fibrous material, preferably at least 25 percent.
  • Preferred methods according to the invention comprise moving the base web of fibrous material and liquid along a first path and applying the add-on material to the base web by providing a reservoir of add-on material across the first path and repetitively discharging add-on material from the reservoir onto the base web to form a pattern thereon by moving a belt having at least one orifice along a second, endless, path that crosses the first path so that the orifice is in communication with the interior of the reservoir over part of the second path.
  • the add-on material is discharged from the reservoir through the orifice onto the base web as the orifice traverses the said first path portion.
  • the add-on material is applied in continuous bands of uniform width perpendicular to the direction of travel of the base web.
  • the add-on material is applied in other patterns, such as patches, non-continuous bands, bands of non-uniform width, such as castellated bands, and bands that are not perpendicular to the direction of travel of the base web as shown for example in WO-A-2009/087479.
  • the pressure of the add-on material is maintained constant across the reservoir of the moving orifice applicator by metering pumps which operate to pump the liquid to inlet ports disposed at intervals across the reservoir in response to signals from pressure sensors located at intervals across the reservoir.
  • metering pumps which operate to pump the liquid to inlet ports disposed at intervals across the reservoir in response to signals from pressure sensors located at intervals across the reservoir.
  • a means to achieve this in a system for applying add-on cellulosic slurry to a paper web is disclosed in WO-A-98/01233. Such an arrangement may be required in order to maintain the pressure of the liquid substantially constant across the reservoir as the passage of the belt through the reservoir may increase the pressure across the reservoir in the direction of movement of the belt.
  • an inspection and feedback system is employed to maintain a constant pattern of add-on material on the base web.
  • the pattern of add-on material is inspected at an inspection station downstream of the reservoir of add-on material, such that the inspection station feeds data on the pattern of add-on material to a processor.
  • the processor compares the data with the desired pattern and controls the supply of the add-on material to the reservoir or the discharge of the add-on material from the first reservoir, or both, to compensate for any departure from the desired pattern.
  • the invention is also directed to a paper wrapper and a smoking article with such a paper wrapper, wherein the paper wrapper comprises at least one area of add-on material and wherein the add-on material comprises a fibrous material and from about 25 percent to about 140 percent calcium carbonate by weight of the fibrous material to the base web
  • Figure 1 A shows an embodiment of apparatus according to the invention
  • Figure 1 B shows a wrapper made by a method according to the invention
  • apparatus for carrying out methods according to the present invention comprises a cigarette paper making machine 2, which preferably includes a head box 4 operatively located at one end of a Fourdrinier wire 6, a tank 8 of feed stock slurry in communication with the head box 4 and a moving orifice applicator 10 in operative communication with an add-on material container 12.
  • the add-on material container 12 contains an aqueous solution of fibrous material and calcium carbonate.
  • the add-on material may further comprise a film forming material and an anti-wrinkling agent.
  • the apparatus is of the general type described in WO-A-03/026807.
  • the head box 4 is one typically utilized in the paper making industry for laying down cellulosic pulp on the Fourdrinier wire 6.
  • the head box 4 is in communication with the tank 8 through a pipe 14.
  • the feed stock in the tank 8 is a refined cellulosic aqueous pulp such as a refined flax or wood pulp as commonly used in the manufacture of cigarette paper.
  • the Fourdrinier wire 6 carries the laid slurry pulp from the head box 4 along a path in the general direction of arrow 16 in Fig. 1 A. Water is allowed to drain from the pulp through the wire 6 by the influence of gravity and at some locations with the assistance of vacuum boxes 18 at various locations along the Fourdrinier wire 6.
  • the base web pulp At some point along the Fourdrinier wire 6, sufficient water is removed from the base web pulp to establish what is commonly referred to as a wet line 20 where the slurry changes from having a glossy, watery appearance to having a surface appearance more approximating that of the finished base web (but in a wetted condition).
  • the moisture content of the pulp material is about 90 percent, usually about 85 percent to 98 percent, depending upon operating conditions.
  • the base web 22 separates from the Fourdrinier wire 6 at a couch roll 24. From there, the Fourdrinier wire 6 continues on the return loop of its endless path.
  • the base web 22 continues on through the remainder of the paper making system which further dries and presses the base web 22 and surface conditions it to a desired final moisture content and texture.
  • drying apparatus are well known in the art of paper making and may include drying felts and the like.
  • a moving orifice applicator 10 comprises an elongate chamber box 30 of an aqueous solution of calcium carbonate disposed obliquely across the path of the Fourdrinier wire 6.
  • the moving orifice applicator also includes an endless perforated steel belt 32 which passes round a drive wheel 34, a guide wheel 36 at the apex of the moving orifice applicator 10 and a follower wheel 38 at the opposite end of the chamber box 30 from the drive wheel 34.
  • the endless belt 32 is directed through the lower part of the chamber box 30 and subsequently through a cleaning box 42 as it exits the chamber box 30.
  • the orifice of the belt 32 passes through the bottom portion of the chamber box 30, the orifice is in communication with the add-on solution in the chamber box 30.
  • a stream 40 of add-on solution is discharged from the orifice as the orifice traverses the length of the chamber box 30.
  • the discharge stream 40 impinges upon the base web 22 passing beneath the moving orifice so as to create a stripe of add-on material solution on the base web 22.
  • the operational speed of the belt 32 may vary from one layout to another, but in the preferred embodiment, the belt is driven at about 7.5 m/s when the Fourdrinier wire is moving at approximately 4 m/s or more (such as 5 m/s to 15 m/s).
  • the chamber box 30 is oriented at an angle relative to the direction of movement of the base web 22.
  • the spacing of the orifices 44 along the belt 32 and the operational speed of the belt 32 is selected such that a plurality of streams 40, 40' of add-on solution fall simultaneously from the chamber box 30 during operation of the moving orifice application. Because of the oblique orientation of the moving orifice applicator relative to the path 16 of the base web 22 and the relative speeds of the Fourdrinier wire 6 and the endless belt 32, each stream 40 of add-on solution will create a stripe of add-on material upon the base web 22 perpendicular to the direction of movement of the web.
  • the moving orifice applicator 10 can repetitively generate stripes of add-on material that are oriented normal to the longitudinal edge of the base web 22. If desired, the angle or relative speeds or both may be altered to produce stripes which are angled obliquely to the edge of the base web 22.
  • the moving orifice applicator is disposed obliquely across the Fourdrinier wire 6 at a location downstream of the wet line 20 where the condition of the base web 22 is such that it can accept the add-on starch solution without the solution dispersing itself too thinly on the base web slurry.
  • the base web 22 retains sufficient moisture content, approximately 20 percent to 98 percent by weight, preferably 85 percent to 98 percent by weight, that the addon solution is able to adhere to the base web 22.
  • a vacuum box 19 is located beneath the chamber box 30 so as to provide local support for the Fourdrinier wire 6.
  • the vacuum box 19 is constructed in accordance with designs commonly utilized in the paper making industry (such as those of the vacuum boxes 18).
  • the vacuum box 19 is operated at a relatively modest vacuum level, preferably at approximately 1 .5.10 4 Pa or less.
  • Additional vacuum boxes 18' may be located downstream of the moving orifice applicator 10 to remove the additional water that the add-on liquid may contribute. It has been found that much of the removal of water from the add-on material occurs at the couch roll 24 where a vacuum is applied of between about 7.4.10 4 Pa and about 8.2.10 4 Pa.
  • the chamber box 30 receives add-on solution from the day tank 12 at spaced locations along the chamber box 30.
  • Uniform pressure can be maintained along the length of the chamber box 30 by the interaction of a flow distribution system 60, a pressure monitoring system 62 and a programmable logic controller 64 such that the pumping action of the belt 22 and other flow disturbances along the length of the chamber box 30 are compensated locally and continuously to achieve the desired uniformity of pressure throughout the chamber box 30.
  • a main circulation pump 15 delivers add-on solution from the day tank 12 to the flow distribution system 60. Details regarding how the controller initiates and maintains uniform pressure along the chamber box 30 can be found in US-A-5 997 691 , the disclosure of which is hereby incorporated by reference.
  • the preparation of the slurry for the production of the cigarette paper using the moving orifice applicator 10 can include cooking of flax straw feed stock, preferably using the standard Kraft process that prevails in the paper making industry.
  • the cooking step is followed by a bleaching step and a primary refining step.
  • the preferred process includes a secondary refining step before the majority of the refined slurry is directed to the tank 8 of the headbox 4.
  • both refining steps are configured to achieve a weighted average fibre length in the flax slurry of between about 0.1 mm and about 0.5 mm, preferably of between about 0.1 mm and about 0.3 mm.
  • a chalk tank can be communicated with the run tank 8 so as to establish a desired chalk level in the slurry supplied to the headbox.
  • a paper is constructed having a base sheet portion 3 and a plurality of uniformly applied, uniformly spaced, mutual parallel bands 5 of add-on materials.
  • the cigarette paper has a reduced air permeability in comparison to that of the regions of the base sheet 3 between the bands 5.
  • the paper is wrapped about a column of tobacco to form the tobacco rod of a cigarette, which will at the banded regions exhibit a slower burn rate in comparison to those regions of the base sheet 3 between the bands 5.
  • the operation of the cigarette paper making machine and method of the preferred embodiment has been described with respect to flax feedstock.
  • feedstocks such as hardwood and softwood pulps, eucalyptus pulps and other types of pulps used in the paper making industry.
  • the alternate pulps may have different characteristics from flax, such as differences in average fibre length, which may necessitate adjustment of the degree of refining in the preparation of the base sheet slurry with some pulps.
  • the invention provides a method of applying banded regions of add-on material containing high levels of calcium carbonate to a sheet of material such as a sheet of cigarette paper during high speed production of the sheet.
  • the apparatus can be used with large-capacity papermaking machines which tend to operate at high machine speeds (such as over 4 m/s).
  • Fig. 1 A shows a portion of a sheet of cigarette paper made by a method according to the invention.
  • the sheet comprises a base paper web 3 with bands of add-on cellulosic material 5 across it.
  • the bands lie circumferentially around the article and are effective to reduce the ignition propensity of the smoking article to an acceptable level while maintaining the Self- extinguishment of the smoking article acceptably low.
  • the invention finds particular application in the manufacture of smoking articles such as cigarettes. However, it is useful in any application in which it is desired to apply a pattern of a add-on material to paper or similar non-woven material fibrous material.
  • Table 1 below lists examples of wrappers that illustrate the method and wrapper of the present invention.
  • the table lists in column 2 the ratio of the amount of pulp solids to the final solution. For example for lot 1 , in 1 kg of solution, 10 g of pulp solids are present. In column 3, the ratios of pulp solids, calcium carbonate (chalk) and a film forming material (FFM), if present, is listed. In the example above, when applied to lot 1 , this means that for 1 kg of solution, 10 g of pulp solids were present, 4 g of calcium carbonate (40 percent of dry weight of pulp) and no film forming material.
  • the add-on material is applied in a pattern of two parallel, transverse bands across the tobacco column of the smoking article.
  • the band width of each band is given in column 4.
  • the table further lists in column 5 the measured permeability in the banded region, in comparison to the permeability of the base paper (in column 6) that was manufactured during the method according to the invention, once the paper is dried.
  • the last two columns of the table give the values for self-extinguishment (SE) that is measured in percent and the values for ignition propensity (IP) that is measured in percent, both on cigarettes that are manufactured with the paper that is produced with the method according to the invention.
  • SE self-extinguishment
  • IP ignition propensity
  • the ignition propensity is measured according to ISO 12863:2010(E).
  • a value of 15 percent for I P means that 6 cigarettes of 40 cigarettes totally burned, that is, 34 cigarettes of 40 cigarettes extinguished before a total burn.
  • the test consists in placing a lit cigarette on a holder at horizontal position and allowing it to burn freely at 55 ⁇ 5 percent relative humidity and 23 ⁇ 3 Q C (degrees Celsius) both of which should be monitored by a recording hygro- thermograph.
  • the cigarette is observed in order to determine whether it self extinguishes before the combustion line reaches the tipping paper or if it burns up to the tipping paper.
  • the cigarettes are conditioned at 55 ⁇ 5 percent relative humidity and 23 ⁇ 3 Q C, for a minimum of 24 hours prior to be tested.
  • the self extinguishment takes place within an enclosure or test box.
  • a single port smoking machine or an electric lighter is used to ignite the smoking articles for the test.
  • an apparatus or "angle holder” holds the smoking articles to be tested by holding an end at angles of 0 degrees (horizontal). If a smoking article goes out before the front line of the smouldering coal reaches the tipping paper, the outcome is scored as "self-extinguishment”; on the other hand, if the smoking article continues smouldering until the front line of the smouldering coal reaches the tipping paper, then the outcome is scored as "non- extinguishment".
  • the value for self extinguishment is the average of 20 cigarettes tested.
  • a value for SE of 15 percent means that 3 cigarettes of 20 cigarettes extinguished in free burn conditions, that is, 17 cigarettes of 20 cigarettes total burned in free burn conditions.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Paper (AREA)

Abstract

La présente invention concerne un procédé d'application d'une zone de matière d'application (5) sur une toile de base (3) qui comprend la fourniture d'une bouillie de matériau fibreux dans un liquide, la formation d'une toile de base de matériau fibreux et de liquide à partir de la bouillie, l'application d'au moins une zone de matière d'application qui comprend du matériau fibreux et entre environ 25 % et environ 140 % de carbonate de calcium en poids du matériau fibreux sur la toile de base, cette dernière ayant une teneur en liquide comprise entre environ 20 % et environ 98 % en poids lorsque la matière d'application est appliquée et le séchage de la toile de base sur laquelle se trouve la matière d'application. L'invention concerne un papier d'emballage destiné à un article pour fumeur. Le papier d'emballage comprend au moins une zone (5) de matière d'application. La matière d'application comprend un matériau fibreux et entre environ 25 % et environ 140 % de carbonate de calcium en poids du matériau fibreux. L'invention concerne enfin un article pour fumeur qui comprend le papier d'emballage.
PCT/EP2012/073204 2011-11-22 2012-11-21 Procédé d'application d'une matière d'application sur une toile de base pendant la fabrication du papier Ceased WO2013076128A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11250910 2011-11-22
EP11250910.4 2011-11-22

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WO2013076128A1 true WO2013076128A1 (fr) 2013-05-30

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021233916A1 (fr) * 2020-05-19 2021-11-25 Philip Morris Products S.A. Article de génération d'aérosol avec enveloppe empêchant la combustion
RU2837828C1 (ru) * 2020-05-19 2025-04-07 Филип Моррис Продактс С.А. Система, генерирующая аэрозоль, изделие, генерирующее аэрозоль, для такой системы, а также способ изготовления изделия, генерирующего аэрозоль

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EP0486213A1 (fr) * 1990-11-16 1992-05-20 Philip Morris Products Inc. Papier ayant des régions transversales de grammage variable
EP0598559A1 (fr) * 1992-11-12 1994-05-25 Philip Morris Products Inc. Application de matériau fluide sur un substrat, en utilisant de l'air comprimé par intermittence
WO1998001233A1 (fr) 1996-07-09 1998-01-15 Philip Morris Products Inc. Methode et appareil d'application d'un materiau sur une bande
EP0872591A1 (fr) * 1997-04-16 1998-10-21 Dettling, Bernhard Procédé d'enduction de feuilles cellulosiques et lignocellulosiques
WO2003026807A2 (fr) 2001-09-21 2003-04-03 Philip Morris Products Inc. Procede et dispositif d'application d'un materiau sur une bande
WO2008146159A2 (fr) 2007-06-01 2008-12-04 Philip Morris Products S.A. Papiers rayés, articles à fumer et procédés associés
WO2009001223A2 (fr) 2007-06-28 2008-12-31 Philip Morris Products S.A. Papier pour cigarette à motif avec un niveau de craie élevé
US20090065012A1 (en) * 2001-08-14 2009-03-12 Pankaj Patel Materials and Methods for Manufacturing Cigarettes
WO2009087479A2 (fr) 2007-12-31 2009-07-16 Philip Morris Products S.A. Procédé et appareil pour fabriquer un emballage à bande fendue en utilisant des orifices mobiles

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Publication number Priority date Publication date Assignee Title
EP0486213A1 (fr) * 1990-11-16 1992-05-20 Philip Morris Products Inc. Papier ayant des régions transversales de grammage variable
EP0598559A1 (fr) * 1992-11-12 1994-05-25 Philip Morris Products Inc. Application de matériau fluide sur un substrat, en utilisant de l'air comprimé par intermittence
WO1998001233A1 (fr) 1996-07-09 1998-01-15 Philip Morris Products Inc. Methode et appareil d'application d'un materiau sur une bande
US5997691A (en) 1996-07-09 1999-12-07 Philip Morris Incorporated Method and apparatus for applying a material to a web
EP0872591A1 (fr) * 1997-04-16 1998-10-21 Dettling, Bernhard Procédé d'enduction de feuilles cellulosiques et lignocellulosiques
US20090065012A1 (en) * 2001-08-14 2009-03-12 Pankaj Patel Materials and Methods for Manufacturing Cigarettes
WO2003026807A2 (fr) 2001-09-21 2003-04-03 Philip Morris Products Inc. Procede et dispositif d'application d'un materiau sur une bande
WO2008146159A2 (fr) 2007-06-01 2008-12-04 Philip Morris Products S.A. Papiers rayés, articles à fumer et procédés associés
WO2009001223A2 (fr) 2007-06-28 2008-12-31 Philip Morris Products S.A. Papier pour cigarette à motif avec un niveau de craie élevé
WO2009087479A2 (fr) 2007-12-31 2009-07-16 Philip Morris Products S.A. Procédé et appareil pour fabriquer un emballage à bande fendue en utilisant des orifices mobiles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021233916A1 (fr) * 2020-05-19 2021-11-25 Philip Morris Products S.A. Article de génération d'aérosol avec enveloppe empêchant la combustion
US20230346007A1 (en) * 2020-05-19 2023-11-02 Philip Morris Products S.A. Aerosol-generating article with combustion preventing wrapper
RU2837828C1 (ru) * 2020-05-19 2025-04-07 Филип Моррис Продактс С.А. Система, генерирующая аэрозоль, изделие, генерирующее аэрозоль, для такой системы, а также способ изготовления изделия, генерирующего аэрозоль

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