EP3701810B1 - Umhüllungspapier mit tiefgedruckten streifen - Google Patents

Umhüllungspapier mit tiefgedruckten streifen Download PDF

Info

Publication number
EP3701810B1
EP3701810B1 EP20159740.8A EP20159740A EP3701810B1 EP 3701810 B1 EP3701810 B1 EP 3701810B1 EP 20159740 A EP20159740 A EP 20159740A EP 3701810 B1 EP3701810 B1 EP 3701810B1
Authority
EP
European Patent Office
Prior art keywords
fibrous crystalline
crystalline cellulosic
cellulosic material
banded
fibrous
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.)
Active
Application number
EP20159740.8A
Other languages
English (en)
French (fr)
Other versions
EP3701810A1 (de
Inventor
Timothy S. Sherwood
Jonathan L. DALTON
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.)
Altria Client Services LLC
Original Assignee
Altria Client Services LLC
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 Altria Client Services LLC filed Critical Altria Client Services LLC
Priority to EP22166022.8A priority Critical patent/EP4108106A1/de
Publication of EP3701810A1 publication Critical patent/EP3701810A1/de
Application granted granted Critical
Publication of EP3701810B1 publication Critical patent/EP3701810B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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 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
    • 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
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means
    • 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
    • A24D1/16—Bands for cigars or cigarettes
    • 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

Definitions

  • the Ignition Propensity value for a smoking article should preferably be no greater than about 25%, when tested in accordance with ASTM E2187. More preferably, the IP value should be no greater than about 20%, and even more preferably no greater than about 10%. Accordingly, efforts to meet such limits are undertaken by various manufacturers of smoking articles.
  • US5417228A is directed to a paper wrapper to control the burn rate of a cigarette.
  • the burn rate is controlled by the use of a paper wrapper to which regions of cellulosic material is applied and bonded.
  • the cellulosic material can be microcrystalline cellulose, bacterial cellulose, or microfibrillated cellulose.
  • the adhesion of the refined fibrous cellulose to an underlying base paper web allows regions of burn rate altering material to be formed on a smoking article wrapper.
  • a desirable feature of this burn altering region is that it only includes fibrous cellulose with or without binder.
  • Binders which may be used with the cellulosic material are carboxymethyl cellulose (CMC), hydroxypropyl cellulose, starch, guar, or other polysaccharide binders or the like.
  • US2006/021625A1 is directed to controlling the burn rate of a "make-your-own" cigarette by application of an add-on material such as a refined form of fibrous cellulose to a tobacco rod wrapper used to form an assembled cigarette.
  • the add-on material may comprise a binder, a filler (chalk), a burn modifier, a starch or other polysaccharide, and/or flavorant.
  • the add-on material when comprising a highly refined fibrous cellulose (and optionally a chalk loading of 1 to 12%), may have a basis weight of approximately 0.5 to 15 gsm.
  • US8863757B2 is directed to a process for reducing the permeability of a paper wrapper used in the construction of a smoking article.
  • the paper wrapper is treated with a film-forming composition that forms treated discrete areas on the wrapper.
  • the film-forming composition contains a film forming material with relatively low viscosity.
  • the film-forming composition can have a higher solids content and yet have a solution viscosity capable of being used in conventional application techniques.
  • the solids content of the film-forming composition can be at least 6% by weight, particularly at least 10% by weight, and more particularly in an amount from about 10% to about 20% by weight.
  • the film-forming material can be, for instance, an alginate, such as sodium alginate.
  • alginate compositions made in accordance with the present invention can contain alginate and water.
  • other ingredients may also be included in the composition.
  • a filler can be contained within the composition.
  • the filler can be, calcium carbonate, calcium chloride, calcium lactate, calcium gluconate, and the like.
  • a smoking article includes a tobacco rod comprising a column of filler and a wrapper surrounding the column of filler.
  • the tobacco rod has a circumferential direction, a longitudinal direction, a lit end, and a mouth end.
  • the wrapper includes a base web having generally parallel first and second side edges extending in the longitudinal direction and two ends extending in the circumferential direction wherein the base web is disposed around the column of filler such that the first and second side edges of the base web overlap and form a seam.
  • the base web includes at least one circumferentially extending banded region of fibrous crystalline cellulosic material thereon.
  • the fibrous crystalline cellulosic material is in a condition of having been gravure printed on the base web as a fibrous crystalline cellulosic slurry that comprises water, crystalline cellulose, and chalk wherein the fibrous crystalline cellulosic slurry has a solids content of about 10% or less by weight of the fibrous crystalline cellulosic slurry and the fibrous crystalline cellulosic material consists essentially of about 95% microcrystalline cellulose and about 5% chalk.
  • a wrapper for smoking articles includes a base web having generally parallel first and second side edges extending in a longitudinal direction, two ends extending in a transverse direction, and a plurality of longitudinally spaced banded regions of fibrous crystalline cellulosic material thereon, the fibrous crystalline cellulosic material having been gravure printed on the base web as a fibrous crystalline cellulosic slurry comprising water, crystalline cellulose, and chalk wherein the fibrous crystalline cellulosic slurry has a solids content of about 10% or less by weight of the fibrous crystalline cellulosic slurry and the fibrous crystalline cellulosic material consists essentially of about 95% microcrystalline cellulose and about 5% chalk.
  • a method of making banded wrapper paper for smoking articles includes advancing a base web to a first printing station and printing a first layer of a fibrous crystalline cellulosic slurry on the base web.
  • the fibrous crystalline cellulosic slurry includes water, crystalline cellulose, and chalk and has a solids content of about 10% or less by weight of the fibrous crystalline cellulosic slurry.
  • the printing includes applying the fibrous crystalline cellulosic slurry to a patterned gravure roller, and contacting the advancing base web with the patterned gravure roller to apply bands of the fibrous crystalline cellulosic slurry on the base web.
  • Banded regions of fibrous crystalline cellulosic material are formed on the base web by drying the bands of the fibrous crystalline cellulosic slurry wherein the fibrous crystalline cellulosic material (126) consists essentially of about 95% microcrystalline cellulose and about 5% chalk.
  • a smoking article 120 such as a cigarette, can comprise a tobacco rod 122 and a filter 132 attached to one end of the tobacco rod 122 with tipping paper 129.
  • the tobacco rod 122 comprises a column of shredded tobacco ("cut filler") and a piece of banded wrapper paper 123 disposed about the column of shredded tobacco.
  • the tobacco rod 122 has a lightable or lit end 124 and a tipped end 130, which, in the case of non-filtered cigarettes, is referenced as the mouth end 130 of the smoking article 120. Cut filler tobacco is an industry-standard designation.
  • the tobacco rod 122 has a generally circular cross section. In other example embodiments, the tobacco rod 122 can have an oval cross section or other non-circular shape cross section.
  • the wrapper 123 is sealed along a longitudinal seam to form the tobacco rod 122.
  • the smoking article 120 has a nominal length measured from the edge 131 of the tipping paper to the lit end 124 of the tobacco rod 122 along a longitudinal axis of smoking article 120.
  • that nominal length may lie in the range of about 60 to about 100 mm.
  • the banded wrapper paper 123 can include a base web 140 that may be made from flax, wood pulp, cellulose fiber, or the like.
  • the base web 140 has a plurality of bands of fibrous crystalline cellulosic material 126 on one or both sides thereof.
  • the bands of fibrous crystalline cellulosic material 126 are applied to a wire side of the base web 140 such that they are on the inside of the banded wrapper paper 123 when a piece of the wrapper 123 surrounds a column of shredded tobacco to form a tobacco rod 122.
  • base web 140 In the manufacture of base web 140 suited for the construction of the various embodiments of banded wrapper paper disclosed herein, such manufacture usually will include the production of a roll of base web 140 of several feet across (usually about 3 feet to about 5 feet across or in transverse dimension), which is then slit into ribbons that are wound on bobbins. Printing operations are conducted on the rolls, but could be conducted after slitting.
  • the bobbins themselves will have a transverse dimension equivalent to the width needed to make tobacco rods 122 or an integral number of such widths (e.g., 1, 2, or 4 of such widths).
  • the bobbins are adapted for use with typical cigarette making machines.
  • the banded wrapper paper has a dimension in cross-direction that takes into account the nominal circumference of the tobacco rod 122 and an overlapping seam. As a result, when the banded wrapper paper 123 is slit, the smoking article 120 formed therefrom always has a longitudinal seam with an exact overlap.
  • longitudinal refers to the direction along the length of a tobacco rod 122 (e.g., along the axis 134 in FIG. 1 ), or along the length of a base web 140 (e.g., arrow 142 in FIGs. 2 and 6 ) used in the preparation of banded wrapper paper 123 that, in turn, may be used to fabricate a tobacco rod 122.
  • transverse refers to the direction circumferentially around a tobacco rod 122 (see FIG. 1 ) or the direction perpendicular to the length of the base web 140 (e.g., arrow 144 in FIGs. 2 and 6 ) used in the preparation of banded wrapper paper 123 that, in turn, may be used to fabricate a tobacco rod 122.
  • a “band” or “banded region” 126 is an area (see FIG. 2 ) on an underlying base web 140 to which a fibrous crystalline cellulosic slurry has been printed to form a region of fibrous crystalline cellulosic material.
  • the phrase “leading edge” refers to the edge 146 (see FIG.
  • band spacing refers to the distance between the trailing edge 148 of one banded region 126 and the leading edge 146 of an adjacent banded region 126 on the base web 140 from which banded wrapper paper 123 is fashioned.
  • phase refers to the distance from the leading edge 146 of one banded region 126 to the leading edge 146 of an adjacent banded region 126.
  • the banded regions of fibrous crystalline cellulosic material 126 extend transversely across the base web 140 and are separated by regions free of added fibrous crystalline cellulosic material in the longitudinal direction 142 of the base web 140.
  • the banded regions of fibrous crystalline cellulosic material 126 are applied to the base web 140 of the banded wrapper paper 123 to obtain satisfactory or improved Ignition Propensity ("IP") characteristics for a smoking article including a piece of the banded wrapper paper 123 and optionally to also obtain improved Self-Extinguishment ("SE”) characteristics for the smoking article.
  • IP Ignition Propensity
  • SE Self-Extinguishment
  • the banded regions of fibrous crystalline cellulosic material 126 are arranged on the base web 140 such that at least one banded region of fibrous crystalline cellulosic material 126 is positioned between the lit end 124 and the tipped end 130 of the tobacco rod 122 in each finished smoking article 120 that includes the banded wrapper paper 123. In an example embodiment, at least two banded regions of fibrous crystalline cellulosic material 126 are positioned between the lit end 124 and the tipped end 130 of the tobacco rod 122 in each finished smoking article 120 that includes the banded wrapper paper 123. In an example embodiment, the banded regions of fibrous crystalline cellulosic material 126 extend circumferentially around the tobacco rod at one or more longitudinally spaced locations along the axis 134 thereof.
  • band or banded region "width” extends in a longitudinal direction along axis 142 of the base web 140 (see FIG. 2 ) or axis 134 of the tobacco rod 122, whereas a dimension in the circumferential direction will be expressed as “circumferential” or “transverse” or “in cross-direction.”
  • the "width" of the banded regions of fibrous crystalline cellulosic material 126 is measured in the longitudinal direction 142 from a leading edge 146 to a trailing edge 148 thereof.
  • the widths of the banded regions of fibrous crystalline cellulosic material 126 are each about 5 to about 9 mm (from the leading edge 146 to the trailing edge 148).
  • the widths of the banded regions of fibrous crystalline cellulosic material 126 are each about 5.5 to about 7.5 mm.
  • the widths of the banded regions of fibrous crystalline cellulosic material 126 are each about 6 to about 7 mm.
  • adjacent banded regions of fibrous crystalline cellulosic material 126 are longitudinally spaced by regions of the base web 140 free of added fibrous crystalline cellulosic material by a distance of about 20 mm to about 30 mm.
  • the phase i.e., the spacing from the leading edge 146 of one banded region 126 to the leading edge 146 of an adjacent banded region 126) is about 25 mm or 27 mm.
  • banded regions of fibrous crystalline cellulosic material 126 are depicted in this disclosure as solid bands, other configurations of the banded regions 126 on the base web 140 are within the spirit and scope of this disclosure, including, but not limited to, configurations in which the banded regions 126 have one or more areas free of added fibrous crystalline cellulosic material between the leading and trailing edges 146, 148 thereof.
  • the base web 140 of the banded wrapper paper 123 is permeable to air. Permeability of the base web 140 is typically identified in CORESTA units.
  • a CORESTA unit measures paper permeability in terms of volumetric flow rate (i.e., cm 3 /sec) per unit area (i.e., cm 2 ) per unit pressure drop (i.e., cm of water).
  • the base web 140 of the banded wrapper paper 123 has a permeability of at least about 20 CORESTA units and a basis weight of about 22 to 30 gram(s) per square meter in regions outside of the banded regions of fibrous crystalline cellulosic material 126.
  • the base web 140 of the banded wrapper paper 123 has a permeability of at least about 20 CORESTA units and a basis weight of about 25 to 27 gsm in regions outside of the banded regions of fibrous crystalline cellulosic material 126. In an example embodiment, the base web 140 of the wrapper 123 has a permeability greater than about 30 CORESTA in regions outside of the banded regions of fibrous crystalline cellulosic material 126.
  • the base web 140 of the wrapper 123 has a permeability of about 33 CORESTA with a basis weight of about 25 gsm in regions outside of the banded regions of fibrous crystalline cellulosic material 126. In an example embodiment, the base web 140 of the wrapper 123 has a permeability of about 46 CORESTA with a basis weight of about 25 gsm in regions outside of the banded regions of fibrous crystalline cellulosic material 126. In an example embodiment, the base web 140 of the wrapper 123 has a permeability of about 60 CORESTA in regions outside of the banded regions of fibrous crystalline cellulosic material 126.
  • the base web 140 of the wrapper 123 has a permeability of about 60 CORESTA with a basis weight of about 25 gsm in regions outside of the banded regions of fibrous crystalline cellulosic material 126. In an example embodiment, the base web 140 of the wrapper 123 has a permeability of about 60 CORESTA with a basis weight of about 26 gsm in regions outside of the banded regions of fibrous crystalline cellulosic material 126.
  • the base web 140 has a permeability greater than about 60 CORESTA with a basis weight of about 25 gsm or more, a permeability greater than about 80 CORESTA with a basis weight of about 25 gsm or more, or a permeability greater than about 100 CORESTA with a basis weight of about 25 gsm or more in regions outside of the banded regions of fibrous crystalline cellulosic material 126.
  • application of the fibrous crystalline cellulosic slurry to a base web 140 and drying thereof forms a banded region of fibrous crystalline cellulosic material 126 on the base web 140 that is effective to locally reduce the permeability of the base web 140 within the banded region 126.
  • bands of fibrous crystalline cellulosic slurry are printed on the base web 140 with a gravure roller 610 to reduce the permeability of the base web 140 within the banded regions of fibrous crystalline cellulosic material 126 to about 0 to about 12 CORESTA.
  • the permeability of the base web 140 within the banded regions of fibrous crystalline cellulosic material 126 is 7 CORESTA or less.
  • application of the fibrous crystalline cellulosic slurry to the base web 140 and drying thereof forms a banded region of fibrous crystalline cellulosic material 126 on the base web 140 that is effective to locally reduce diffusivity values of the base web 140 from a diffusivity level of about 2 cm/sec or greater (for the base web 140 in regions free of added fibrous crystalline cellulosic material) to a value in the range of 0.0 to about 0.2 cm/sec as measured by a Sodim CO 2 Diffusivity Tester (purchased from Sodim SAS of France).
  • the banded wrapper paper 123 is positioned within a clamping head so that the banded wrapper paper 123 separates two vertically arranged chambers.
  • the upper chamber contains a carrier gas, such as nitrogen, while the lower chamber contains a marker gas, such as carbon dioxide.
  • a carrier gas such as nitrogen
  • the lower chamber contains a marker gas, such as carbon dioxide.
  • the concentration of carbon dioxide within the nitrogen stream of the upper chamber is measured in an analyzer.
  • a computer then converts the detected level of concentration into a measure of diffusivity.
  • the diffusivity of the base web 140 within the banded regions of fibrous crystalline cellulosic material 126 is less than about 0.15 cm/sec.
  • the diffusivity of the base web 140 within the banded regions of fibrous crystalline cellulosic material 126 is about 0 to about 0.1 cm/sec (e.g. about 0.01 to about 0.09 cm/sec, about 0.02 to about 0.08 cm/sec, about 0.03 to about 0.07 cm/sec or about 0.04 to about 0.06 cm/sec).
  • each banded region of fibrous crystalline cellulosic material 126 may be formed by gravure printing a "layer" of a fibrous crystalline cellulosic slurry on the base web 140 to reduce the permeability of the base web 140 in the corresponding banded region.
  • the fibrous crystalline cellulosic slurry is aqueous.
  • FIG. 3 is a schematic view of a single stage printing apparatus 602.
  • a supply reel 601 supplies a blank base web 140 to a gravure printing station 602 where a banded region of fibrous crystalline cellulosic slurry is printed on the blank base web 140 by the gravure roller 610 and dried in a drier 634.
  • the drier 634 can include at least one steam can.
  • the drier 634 can include two steam cans wherein the base web 140 is advanced and pressed between the steam cans to reduce wrinkling of the base web 140.
  • the dried, patterned base web 140 then advances to a collection reel 608.
  • a wide base web 140 may be slit or divided by a slitter 635 into a plurality of narrower strips of base web that may be wound to form individual bobbins after the printing operation, where the bobbins have a width corresponding to that required for a smoking article 120.
  • the optional slitter 635 may be used on the base web 140 as that base web 140 leaves the printing station, or the slitter and slitting operation may be conducted at a different location.
  • Example embodiments of gravure printing the fibrous crystalline cellulosic slurry as disclosed herein enable high-speed printing on the base web 140.
  • "high-speed" printing refers to printing processes where the base web 140 advances through the printing process at a linear speed greater than about 300 feet/min.
  • the size of the crystalline fibers in the fibrous crystalline cellulosic slurry, and the deposition rate and viscosity of the fibrous crystalline cellulosic slurry are selected such that base web printing speeds of greater than 500 feet/minute can be achieved.
  • the gravure cylinder (roller) 610 includes a plurality of cells 700 arranged in a pattern corresponding to a band that is to be printed on the base web 140 by the gravure roller 610.
  • the gravure cylinder 610 includes two or more circumferentially spaced regions 701 of cells 700 wherein each region 701 of cells 700 is arranged in a pattern corresponding to a band that is to be printed on the base web 140 by the gravure roller 610.
  • adjacent regions 701 of cells 700 are circumferentially spaced by cell free surfaces 703 of the gravure roller 610 which extend a distance corresponding to the spacing between adjacent banded regions to be printed on the base web 140.
  • the pattern of cells 700 corresponding to banded regions are arranged in a chevron pattern wherein angle "A" at the tip or apex of the chevron is preferably greater than about 170 degrees.
  • angle "A" at the tip or apex of the chevron is preferably greater than about 170 degrees.
  • the cells of the gravure roller 610 can be formed by etching the gravure roller 610. Suitable etching processes and gravure cylinders can be obtained from Heliograph Holding GmbH.
  • photoresist 801 is applied to a metallic surface 800, and lasers 802 are used to activate the photoresist, which serves to mask areas where walls are desired.
  • the gravure roller 610 (shown in FIG. 4 ) has a plurality of cells 700 which have a generally hexagonal shape.
  • the cells 700 of the gravure roller 610 can have walls 702 ranging from about 12 to about 80 microns in width between adjacent cells 700 depending on the desired final volume of each cell 700. In an example embodiment, the cells 700 of the gravure roller 610 can have walls 702 ranging from about 12 to about 20 microns in width between adjacent cells 700. In an example embodiment, the gravure cylinder 610 can be formed such that certain cells within a region of cells are thinner than walls of other cells of the gravure roller 610. In an example embodiment, the cells 700 of the gravure roller 610 can have a generally circular shape. In an example embodiment, the depth of the cells 700 is uniform. However, in other embodiments, the depth of the cells 700 can vary.
  • the cells 700 are filled with the fibrous crystalline cellulosic slurry such that they may print the fibrous crystalline cellulosic slurry on the base web 140.
  • the cells 700 are sized to print dots of the fibrous crystalline cellulosic slurry which spread to form a continuous band of fibrous crystalline cellulosic material 126 on the base web 140 when the fibrous crystalline cellulosic slurry is dried.
  • the cells 700 are sized to print dots of the fibrous crystalline cellulosic slurry to form a substantially continuous band of fibrous crystalline cellulosic material 126 on the base web 140 when the fibrous crystalline cellulosic slurry is dried.
  • the cells 700 are sized to print small enough dots of the fibrous crystalline cellulosic slurry to form a non-continuous band of fibrous crystalline cellulosic material 126 on the base web 140 when the fibrous crystalline cellulosic slurry is dried wherein one or more areas within the non-continuous band of fibrous crystalline cellulosic material 126 are free of added fibrous crystalline cellulosic material. Adjustment of diffusivity of the banded regions of fibrous crystalline cellulosic material 126 can be facilitated by changing the size and/or number of cells 700 which apply fibrous crystalline cellulosic slurry.
  • a gravure roller 610 is supplied fibrous crystalline cellulosic slurry, and moves through a doctor blade 630 that extends along the length of the gravure roller 610.
  • the doctor blade 630 is positioned so that is wipes the surface of the gravure roller 610 such that portions 703 of the gravure roller 610 that define the nominal spacing between adjacent banded regions 126 are essentially wiped clean of the fibrous crystalline cellulosic slurry, while the cells 700 of the gravure roller 610 advance toward a nip 616 of the printing station 602 full of the fibrous crystalline cellulosic slurry.
  • the gravure roller 610 contacts one side of the base web 140 in the nip 616 between the gravure roller 610 and an impression cylinder 612 backed by backing roller 614 to print the fibrous crystalline cellulosic slurry in the cells of the gravure roller 610 on the base web 140.
  • the fibrous crystalline cellulosic slurry is delivered from a reservoir 618 to an applicator 624 by a suitable pump 620.
  • the fibrous crystalline cellulosic slurry is spread on the gravure roller 610 by the applicator 624.
  • Excess fibrous crystalline cellulosic slurry accumulates in a bath 626 held by collector 627 from which excess fibrous crystalline cellulosic slurry returns via drain 628 to the reservoir 618.
  • the fibrous crystalline cellulosic slurry is continuously circulated between the reservoir 618 and the bath 626 to prevent the solids in the fibrous crystalline cellulosic slurry from settling in the bottom of the reservoir 618 or the bottom of the bath 626.
  • the fibrous crystalline cellulosic slurry in the reservoir 618 is continuously agitated or mixed, to prevent solids in the fibrous crystalline cellulosic slurry from settling in the bottom of the reservoir 618.
  • the fibrous crystalline cellulosic slurry printed on the base web 140 at room temperature.
  • the fibrous crystalline cellulosic slurry can be prepared by mixing fibrous crystalline cellulosic material and chalk with a sufficient amount of water to make an aqueous slurry having a composition of less than about 10% solids.
  • the fibrous crystalline cellulosic material is insoluble in the water such that mixing the fibrous crystalline cellulosic material and chalk with the water suspends the fibrous crystalline cellulosic material and the chalk in the water to form a stable slurry.
  • the fibrous crystalline cellulosic material is free of any modified cellulose.
  • the fibrous crystalline cellulosic material is free of any binders.
  • the fibrous crystalline cellulosic material is free of any binders and modified cellulose. In an example embodiment, the fibrous crystalline cellulosic material is free of any bacterial cellulose. In an example embodiment, the fibrous crystalline cellulosic material is microcrystalline cellulose and is free of any binders and modified cellulose. In an example embodiment, the fibrous crystalline cellulosic material is microcrystalline cellulose and a binder.
  • the fibrous crystalline cellulosic material includes microcrystalline cellulose and a binder, and is free of any modified cellulose.
  • the fibrous crystalline cellulosic material is free of starch, guar gum, alginate, and/or cellulose derivatives.
  • the fibrous crystalline cellulosic material is free of any film forming material.
  • the fibrous crystalline cellulosic material includes a binder such as sodium carboxymethyl cellulose or carboxymethyl cellulose.
  • the fibrous crystalline cellulosic material includes microcrystalline cellulose and a binder wherein the binder is less than about 9% by weight of the fibrous crystalline cellulosic material.
  • the fibrous crystalline cellulosic material includes AVICEL TM microcrystalline cellulose.
  • the fibrous crystalline cellulosic material includes microcrystalline cellulose and a binder, and is free of any modified cellulose.
  • the fibrous crystalline cellulosic material includes microcrystalline cellulose wherein the fibers of the microcrystalline cellulose are predominately of a size of about 200 microns or less.
  • the fibrous crystalline cellulosic material includes microcrystalline cellulose wherein at least 90% of the fibers of the microcrystalline cellulose have a size of about 200 microns or less.
  • the fibrous crystalline cellulosic material includes microcrystalline cellulose wherein the fibers of the microcrystalline cellulose are predominately of a size of about 10 microns or more.
  • the fibrous crystalline cellulosic material is insoluble in room temperature water wherein the fibrous crystalline cellulosic material is mixed with room temperature water.
  • the fibrous crystalline cellulosic material is insoluble in water having a temperature less than about 38° C wherein the fibrous crystalline cellulosic material is mixed with water having a temperature less than about 38° C.
  • the fibrous crystalline cellulosic material and chalk is mixed with non-deionized water such as tap water.
  • the fibrous crystalline cellulosic slurry is a composition having less than about 9.5% fibrous crystalline cellulosic material and less than about 5.5% chalk.
  • the fibrous crystalline cellulosic slurry is a composition having about 9.5% fibrous crystalline cellulosic material and about 5.5% chalk.
  • the fibrous crystalline cellulosic slurry includes up to 9.5 weight % cellulosic fibrous crystalline material and up to 5.5 weight % chalk.
  • a room temperature viscosity of the fibrous crystalline cellulosic slurry is no greater than about 40 centipoises.
  • a room temperature viscosity of the fibrous crystalline cellulosic slurry is between about 30 to 40 centipoises.
  • a room temperature viscosity of the fibrous crystalline cellulosic slurry is less than about 30 to 40 centipoises.
  • the fibrous crystalline cellulosic slurry is a composition having less than about 10% solids wherein a ratio fibrous crystalline cellulosic material to chalk in the fibrous crystalline cellulosic slurry is about 95 to 5. In an example embodiment, the fibrous crystalline cellulosic slurry is a composition having less than about 8% solids wherein a ratio fibrous crystalline cellulosic material to chalk in the fibrous crystalline cellulosic slurry is about 95 to 5.
  • the fibrous crystalline cellulosic slurry is a composition having less than about 6% solids wherein a ratio fibrous crystalline cellulosic material to chalk in the fibrous crystalline cellulosic slurry is about 95 to 5. In an embodiment, the fibrous crystalline cellulosic slurry is a composition having less than about 5% solids wherein a ratio fibrous crystalline cellulosic material to chalk in the fibrous crystalline cellulosic slurry is about 95 to 5.
  • the fibrous crystalline cellulosic slurry is a composition having about 2% solids wherein a ratio fibrous crystalline cellulosic material to chalk in the fibrous crystalline cellulosic slurry is about 95 to 5. In an embodiment, the fibrous crystalline cellulosic slurry is a composition having less than about 10% solids wherein a ratio fibrous crystalline cellulosic material to chalk in the fibrous crystalline cellulosic slurry is about 94.5 to 5.5.
  • the fibrous crystalline cellulosic slurry is a composition having less than about 8% solids wherein a ratio fibrous crystalline cellulosic material to chalk in the fibrous crystalline cellulosic slurry is about 94.5 to 5.5. In an embodiment, the fibrous crystalline cellulosic slurry is a composition having less than about 6% solids wherein a ratio fibrous crystalline cellulosic material to chalk in the fibrous crystalline cellulosic slurry is about 94.5 to 5.5.
  • the fibrous crystalline cellulosic slurry is a composition having less than about 5% solids wherein a ratio fibrous crystalline cellulosic material to chalk in the fibrous crystalline cellulosic slurry is about 94.5 to 5.5. In an embodiment, the fibrous crystalline cellulosic slurry is a composition having about 2% solids wherein a ratio fibrous crystalline cellulosic material to chalk in the fibrous crystalline cellulosic slurry is about 94.5 to 5.5.
  • the final fibrous crystalline cellulosic slurry can be printed as longitudinally spaced apart banded regions, as described with respect to FIG. 2 , to a base web 140 used to form banded wrapper paper 123 for smoking articles wherein the base web 140 has a nominal width ranging from about 36 inches (i.e., about 920 mm) to about 60 inches at the gravure printing press.
  • the moisture content of the base web 140 at the time of gravure printing is at least 3%.
  • the base web 140 is passed through a sprayer operable to spray water on the base web 140 before gravure printing to increase the moisture level of the base web 140 to at least 3%.
  • the fibrous crystalline cellulosic slurry can be applied to the base web 140 at a target rate of about 5 to 50 BCM (billion cubic microns per square inch). In an embodiment, the fibrous crystalline cellulosic slurry can be applied to the base web 140 at a target rate of about 5 BCM to about 38 BCM. Thereafter the base web 140 can be dried so that the printing solution dries. In an example embodiment, the fibrous crystalline cellulosic slurry is gravure printed on the base web 140 in a single pass to form bands of fibrous crystalline cellulosic material 126 wherein the total dry weight of the added fibrous crystalline cellulosic material of each band is up to about 2.5 gsm.
  • the fibrous crystalline cellulosic slurry is gravure printed on the base web 140 in a single pass to form bands of fibrous crystalline cellulosic material 126 wherein the total dry weight of the added fibrous crystalline cellulosic material of each band is about 2.5 gsm.
  • the fibrous crystalline cellulosic slurry is gravure printed on the base web 140 in multiple passes to form bands having multiple layers of fibrous crystalline cellulosic material 126 wherein the total dry weight of the added fibrous crystalline cellulosic material is up to about 2.5 gsm.
  • the fibrous crystalline cellulosic slurry is gravure printed on the base web 140 in multiple passes to form bands having multiple layers of fibrous crystalline cellulosic material 126 wherein the total dry weight of the added fibrous crystalline cellulosic material is about 2.5 gsm.
  • the base web 140 may be passed through a drier 634, such as a heated can drier, to dry or partially dry the base web 140 between passes.
  • the base web 140 can be passed through the drier 634 and advanced under tension to a slitter 635 where the nominal width of the base web can be longitudinally cut into a plurality of strips or ribbons, each strip having a width of about 27 mm (e.g., the width required to surround a conventional tobacco rod and have a longitudinal glue seam). While the base web 140 is still under tension, the plurality of strips can be simultaneously wound onto individual bobbins.
  • Ignition Propensity or IP is a standard test conducted as set forth in ASTM E 2187-04, "Standard Test Method for Measuring the Ignition Strength of Smoking Articles", which is incorporated herein in its entirety by this reference thereto.
  • Ignition propensity measures the probability that a smoking article, when smoldering and placed on a substrate, will generate sufficient heat to maintain smoldering of the tobacco rod.
  • Low values for IP are desirable as such values correlate with a reduced likelihood that a smoldering smoking article, when inadvertently left unattended upon a substrate, will cause combustion in the substrate.
  • An IP value of a smoking article should be no greater than about 25%, and preferably no greater than about 20%, and even more preferably no greater than about 10% as described in US Patent Application Publication No. 2013/0306082 published Nov. 21, 2013 , the entire content of which is incorporated herein by reference thereto.
  • Self-Extinguishment or SE herein is a reference to smoldering characteristics of a smoking article under free burn conditions.
  • SE Self-Extinguishment
  • a laboratory test is conducted at a temperature of 23° C +- 0.3° C and relative humidity of 55% +- 0.5%, both of which should be monitored by a recording hygrothermograph. Exhaust hood(s) remove combustion products formed during testing.
  • smoking articles to be tested Prior to testing, smoking articles to be tested are conditioned at 55% +-0.5% relative humidity and 23° C +- 0.3° C for 24 hours. Just prior to testing, the smoking articles are placed in glass beakers to assure free air access.
  • SE testing 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° (horizontal), 45°, and/or 90° (vertical).
  • 0° horizontal
  • 45° 45°
  • 90° 90°
  • twenty (20) smoking articles are tested at each of the 0°, 45°, and 90° positions.
  • the apparatuses are preferably positioned such that the smoking articles face away from each other to avoid cross interference.
  • an SE value of 95% indicates that 95% of the smoking articles tested exhibited self-extinguishment under free burn conditions; while an SE value of 20% indicates that only 20% of the smoking articles tested exhibited self-extinguishment under such free burn conditions.
  • the SE value for a smoking article should be no greater than about 80% (at horizontal orientation) and preferably no greater than about 50% and even more preferably no greater than about 25% as described in US Patent Application Publication No. 2013/0306082 published Nov. 21, 2013 , the entire content of which is incorporated herein by reference thereto. It is desirable to achieve IP performance that meets and exceeds governmental requirements. Moreover, as also previously noted, that desired IP performance often adversely impacts the SE performance of the smoking article. Stated differently, while the IP performance may meet or exceed the governmental requirements, that IP performance is typically associated with a smoking article that will self-extinguish when hand held by a smoker--an SE of 100%. Since smokers ordinarily prefer not to need to relight a smoking article, improvement of SE performance while maintaining IP performance constitutes a highly desirable feature for improved wrappers.
  • a band 126 configuration such as shown in FIG. 6 is capable of better sustaining smoldering during free burns, yet when placed adjacent a substrate, does not sustain smoldering.
  • about 10% IP can be obtained for paper having diffusion ranging from about 0 to about 0.2 cm/sec, while maintaining about 18% SE, by controlling the print area and volume of fibrous crystalline cellulosic slurry printed on the base web 140.
  • banded wrapper paper 123 can include a base web 140 which includes a plurality of bands of fibrous crystalline cellulosic material 126 on one or both sides thereof.
  • the bands of fibrous crystalline cellulosic material 126 can be arranged on the base web 140 such that a smoking article 120 (see e.g., FIG.
  • each band of fibrous crystalline cellulosic material has a first zone 202, a second zone 203, and optionally a third zone 204 of fibrous crystalline cellulosic material wherein the amount of the fibrous cellulosic crystalline cellulosic material within each zone can be selected to control the IP performance and/or SE performance of a smoking article including the wrapper paper.
  • the first zone 202 and the third zone 204 include about the same amount of fibrous crystalline cellulosic material on the base web 140, while the second zone 203 has about 20% to about 80% (e.g., about 25% to about 75%, about 30% to about 70%, about 35% to about 65%, about 40% to about 60%, or about 45% to about 55%) less fibrous crystalline cellulosic material on the base web 140 than the first or third zones 202, 204.
  • the fibrous crystalline cellulosic material of each zone is applied as a plurality of dots of fibrous crystalline cellulosic slurry arranged in a pattern, generally within the zone, to produce a banded region of fibrous crystalline cellulosic material on the base web 140.
  • each dot of fibrous crystalline cellulosic slurry printed in the second zone 203 has smaller dimensions than each dot of fibrous crystalline cellulosic slurry printed in the first zone 202 and the third zone 204.
  • FIG. 7 shows an example embodiment of a patterned portion of a gravure cylinder (roller) 610 that may be used to print banded regions of fibrous crystalline cellulosic slurry to form banded regions of fibrous crystalline cellulosic material 126 which have a first zone 202, a second zone 203, and a third zone 204 of fibrous crystalline cellulosic material.
  • the first, second, and third zones 202, 203, 204 of each banded region 126 are directly adjacent to one another such that they are not separated by a length of base web 140 that is free of added fibrous crystalline cellulosic material. As shown in FIG.
  • the gravure roller 610 includes a plurality of cells 700 etched thereon in a pattern corresponding to the aforementioned zones 202, 203, 204 wherein the cells 700 have a generally hexagonal shape.
  • the gravure cylinder 610 includes first and third zones 712 and a second zone 710 therebetween wherein walls 720 between adjacent cells 722 in the first and third zones 712 have a narrower width than walls 724 between adjacent cells 726 of the second zone 710.
  • dots of printed slurry in the first zone 202 and third zone 204 are formed by a gravure roller 610 including cells 722 having thinner walls 720 between adjacent cells 726, such that a greater amount of fibrous crystalline cellulosic slurry is applied and the dots of printed slurry tend to run together when printed on the base web 140.
  • the walls 724 of the cells 726 may be configured such that the dots of printed slurry run together when printed on the base web 140.
  • the walls 720 between adjacent cells 726 of the first and/or third zones 202, 204 may be configured such that the dots printed thereby tend to stay separated once printed on the base web 140.
  • the first zone 202 and the third zone 204 can have a diffusivity ranging from about 0 to about 0.1 cm/sec (e.g. about 0.01 to about 0.09 cm/sec, about 0.02 to about 0.08 cm/sec, about 0.03 to about 0.07 cm/sec or about 0.04 to about 0.06 cm/sec), and the second zone 203 can have a diffusivity ranging from about 0.1 to about 0.4 cm/sec (e.g. about 0.15 to about 0.35 cm/sec or about 0.2 to about 0.3 cm/sec).

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Claims (13)

  1. Rauchartikel (120), umfassend:
    eine Tabakstange (122), die eine Säule aus einem Füllmaterial und eine die Säule aus dem Füllmaterial umgebende Hülle (123) umfasst, wobei die Tabakstange (122) eine Umfangsrichtung, eine Längsrichtung (142), ein Ende zum Anzünden (124) und ein Mundende (130) aufweist;
    wobei die Hülle (123) ferner ein Basisflächengebilde (140) aufweist mit im allgemeinen parallelen ersten und zweiten Seitenrändern, die sich in der Längsrichtung erstrecken, und mit zwei Enden, die sich in der Umfangsrichtung erstrecken, wobei das Basisflächengebilde (140) so um die Säule aus dem Füllmaterial herum angeordnet ist, dass der erste und der zweite Seitenrand des Basisflächengebildes (140) einander überlappen und eine Naht bilden, wobei das Basisflächengebilde (140) mit mindestens einer in Umfangsrichtung verlaufenden Begrenzungsstreifenregion aus faserigem kristallinem Cellulosematerial (126) versehen ist, wobei das faserige kristalline Cellulosematerial als faserige kristalline Celluloseschlämme, die Wasser, kristalline Cellulose und Kalk umfasst, durch Tiefdrucken auf das Basisflächengebilde (140) aufgebracht wurde, wobei die faserige kristalline Celluloseschlämme, bezogen auf das Gewicht der faserigen kristallinen Celluloseschlämme, einen Feststoffgehalt von etwa 10 % oder weniger aufweist und das faserige kristalline Cellulosematerial im Wesentlichen von etwa 95 % mikrokristalliner Cellulose und etwa 5 % Kalk gebildet wird.
  2. Rauchartikel (120) nach Anspruch 1, wobei (a) an dem Mundende der Tabakstange (122) ein Filter angebracht ist; (b) der Kalk Calciumcarbonat ist; (c) das Basisflächengebilde (140) mindestens zwei in Längsrichtung voneinander beabstandete, in Umfangsrichtung verlaufende Begrenzungsstreifenregion aus faserigem kristallinem Cellulosematerial (126) einschließt; (d) die mindestens eine in Umfangsrichtung verlaufende Begrenzungsstreifenregion aus faserigem kristallinem Cellulosematerial (126) als einzelne Schicht gedruckt ist; (e) die mindestens eine in Umfangsrichtung verlaufende Begrenzungsstreifenregion aus faserigem kristallinem Cellulosematerial (126) in mindestens zwei Schichten gedruckt ist; (f) das Basisflächengebilde (140) in Regionen außerhalb der mindestens einen in Umfangsrichtung verlaufenden Begrenzungsstreifenregion aus faserigem kristallinem Cellulosematerial (126) eine Durchlässigkeit von mehr als etwa 20 CORESTA und weniger als etwa 100 CORESTA und in Regionen innerhalb der mindestens einen in Umfangsrichtung verlaufenden Begrenzungsstreifenregion aus faserigem kristallinem Cellulosematerial (126) einen CORESTA von 12 oder weniger aufweist; (g) die mindestens eine in Umfangsrichtung verlaufende Begrenzungsstreifenregion aus faserigem kristallinem Cellulosematerial (126) mikrokristalline Cellulose einschließt; (h) die mindestens eine in Umfangsrichtung verlaufende Begrenzungsstreifenregion aus faserigem kristallinem Cellulosematerial (126) frei ist jeglichen Bindemitteln, modifizierter Cellulose und bakterieller Cellulose; (j) das faserige kristalline Cellulosematerial mikrokristalline Cellulose, ein Bindemittel und Kalk einschließt, wobei das Bindemittel, bezogen auf das Gewicht der mikrokristallinen Cellulose, in einer Menge von etwa 9 % oder weniger enthalten ist; (k) das faserige kristalline Cellulosematerial mikrokristalline Cellulose einschließt, wobei mindestens 90 % der Fasern der mikrokristallinen Cellulose eine Größe von etwa 200 Mikrometern oder weniger aufweisen; (1) das faserige kristalline Cellulosematerial mikrokristalline Cellulose einschließt, wobei mindestens 90 % der Fasern der mikrokristallinen Cellulose eine Größe von etwa 200 Mikrometern oder weniger aufweisen; (m) die mindestens eine Begrenzungsstreifenregion aus faserigem kristallinem Cellulosematerial (126) bis zu 2,5 g/m2 an zugesetztem faserigem kristallinem Cellulosematerial aufweist; (n) die Zündneigung des Rauchartikels (120) nicht höher ist als 25 % und die Selbstlöschlichkeit des Rauchartikels (120) nicht höher ist als 50 %; oder (o) die mindestens eine Begrenzungsstreifenregion aus faserigem kristallinem Cellulosematerial (126) eine erste Zone, eine zweite Zone und eine dritte Zone einschließt, wobei die erste und die dritte Zone etwa die gleiche Menge an faserigem kristallinem Cellulosematerial einschließen und die zweite Zone weniger faseriges kristallines Cellulosematerial einschließt als die erste oder die dritte Zone.
  3. Rauchartikel (120) nach Anspruch 2, wobei das Basisflächengebilde (140) in Regionen außerhalb der mindestens zwei in Längsrichtung voneinander beabstandeten, in Umfangsrichtung verlaufenden Begrenzungsstreifenregion aus faserigem kristallinem Cellulosematerial (126) frei ist von zugesetztem faserigem kristallinem Cellulosematerial.
  4. Hülle (123) für Rauchartikel (120), umfassend: ein Basisflächengebilde (140) mit im Allgemeinen parallelen ersten und zweiten Seitenrändern, die sich in einer Längsrichtung erstrecken, und mit zwei Enden, die sich in einer Querrichtung erstrecken, und einer Mehrzahl von in einer Längsrichtung verlaufenden, voneinander beabstandeten Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126), wobei das faserige kristalline Cellulosematerial als faserige kristalline Celluloseschlämme, die Wasser, kristalline Cellulose und Kalk umfasst, durch Tiefdrucken auf das Basisflächengebilde (140) aufgebracht wurde, wobei die faserige kristalline Celluloseschlämme, bezogen auf das Gewicht der faserigen kristallinen Celluloseschlämme, einen Feststoffgehalt von etwa 10 % oder weniger aufweist und das faserige kristalline Cellulosematerial im Wesentlichen von etwa 95 % mikrokristalliner Cellulose und etwa 5 % Kalk gebildet wird.
  5. Hülle (123) nach Anspruch 4, wobei: (a) der Kalk Calciumcarbonat ist; (b) das Basisflächengebilde (140) in Regionen außerhalb der Mehrzahl von in Längsrichtung voneinander beabstandeten Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) frei ist von zugesetztem faserigem kristallinem Cellulosematerial; (c) die Mehrzahl von in Längsrichtung voneinander beabstandeten Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) jeweils als einzige Schicht gedruckt sind; (d) die Mehrzahl von in Längsrichtung voneinander beabstandeten Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) jeweils in mindestens zwei Schichten gedruckt sind; (e) das Basisflächengebilde (140) in Regionen außerhalb der Mehrzahl von in Längsrichtung voneinander beabstandeten Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) eine Durchlässigkeit von mehr als etwa 20 CORESTA und weniger als etwa 100 CORESTA aufweist und in Regionen innerhalb der Mehrzahl von in Längsrichtung voneinander beabstandeten Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) einen CORESTA von 12 oder weniger aufweist; (f) die Mehrzahl von in Längsrichtung voneinander beabstandeten Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) mikrokristalline Cellulose einschließt; (g) die Mehrzahl von in Längsrichtung voneinander beabstandeten Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) frei sind von jeglichen Bindemitteln, modifizierter Cellulose und bakterieller Cellulose; (i) das faserige kristalline Cellulosematerial mikrokristalline Cellulose, ein Bindemittel und Kalk einschließt, wobei das Bindemittel, bezogen auf das Gewicht der mikrokristallinen Cellulose, in einer Menge von etwa 9 % oder weniger vorhanden ist; (j) das faserige kristalline Cellulosematerial mikrokristalline Cellulose einschließt, wobei mindestens 90 % der Fasern der mikrokristallinen Cellulose eine Größe von etwa 200 Mikrometern oder weniger aufweisen; (k) die Mehrzahl von in Längsrichtung voneinander beabstandeten Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) jeweils bis zu 2,5 g/m2 an zugesetztem faserigem kristallinem Cellulosematerial aufweisen; oder (l) die Mehrzahl von in Längsrichtung voneinander beabstandeten Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) jeweils eine erste Zone, eine zweite Zone und eine dritte Zone einschließen, wobei die erste und die dritte Zone etwa die gleiche Menge an faserigem kristallinem Cellulosematerial einschließen und die zweite Zone weniger faseriges kristallines Cellulosematerial einschließt als die erste oder die dritte Zone.
  6. Verfahren zum Herstellen eines mit Begrenzungsstreifen versehenen Hüllpapiers (123) für Rauchartikel (120), wobei das Verfahren umfasst:
    Befördern eines Basisflächengebildes (140) zu einer ersten Druckstation (602);
    Drucken einer ersten Schicht aus faseriger kristalliner Celluloseschlämme auf das Basisflächengebilde (140), wobei die faserige kristalline Celluloseschlämme Wasser, kristalline Cellulose und Kalk umfasst, wobei die faserige kristalline Celluloseschlämme, bezogen auf das Gewicht der faserigen kristallinen Celluloseschlämme, einen Feststoffgehalt von etwa 10 % oder weniger aufweist, wobei das Drucken das Aufbringen der faserigen kristallinen Celluloseschlämme auf eine gemusterte Tiefdruckwalze (610) und das Inkontaktbringen des beförderten Basisflächengebildes (140) mit der gemusterten Tiefdruckwalze (610), um Begrenzungsstreifen aus der faserigen kristallinen Celluloseschlämme auf das Basisflächengebilde (140) aufzutragen, umfasst; und
    Ausbilden von Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) auf dem Basisflächengebilde (140) durch Trocknen der Begrenzungsstreifen aus der faserigen kristallinen Celluloseschlämme, wobei das faserige kristalline Cellulosematerial (126) im Wesentlichen von etwa 95 % mikrokristalliner Cellulose und etwa 5 % Kalk gebildet wird.
  7. Verfahren zum Herstellen des mit Begrenzungsstreifen versehenen Hüllpapiers (123) nach Anspruch 6, wobei: (a) die faserige kristalline Celluloseschlämme nicht erwärmt wird, wenn sie auf die Tiefdruckwalze (610) aufgetragen wird; (b) das Trocknen ein Laufenlassen des Basisflächengebildes (140) über mindestens ein Dampfgefäß (634) umfasst; (c) nur die erste Schicht aus faseriger kristalliner Celluloseschlämme auf das Basisflächengebilde (140) gedruckt wird; (d) die Menge an faseriger kristalliner Celluloseschlämme, die auf das Basisflächengebilde (140) aufgetragen wird, ausreicht, um Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) mit einem Gewicht von etwa 2,5 g/m2 zu bilden; oder (e) die Durchlässigkeit des mit Begrenzungsstreifen versehenen Hüllpapiers (123) in Regionen außerhalb der Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) etwa 20 CORESTA bis etwa 100 CORESTA beträgt, und die Durchlässigkeit des mit Begrenzungsstreifen versehenen Hüllpapiers (123) innerhalb der Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial (126) etwa 12 CORESTA oder weniger beträgt.
  8. Verfahren zum Herstellen des mit Begrenzungsstreifen versehenen Hüllpapiers (123) nach Anspruch 6, einen Schritt des Druckens einer zweiten Schicht aus der faserigen kristallinen Celluloseschlämme über die erste Schicht einschließend.
  9. Verfahren zum Herstellen des mit Begrenzungsstreifen versehenen Hüllpapiers (123) nach Anspruch 8, wobei (a) die zweite Schicht mit einem Auftragsgewicht gedruckt wird, das mindestens 1 % höher ist als ein Auftragsgewicht der ersten gedruckten Schicht; oder (b) zwischen dem Drucken der ersten und der zweiten Schicht ein Trocknen des Basisflächengebildes (140) eingeschlossen ist.
  10. Verfahren zum Herstellen des mit Begrenzungsstreifen versehenen Hüllpapiers nach Anspruch 6, wobei die faserige kristalline Celluloseschlämme ein Bindemittel einschließt.
  11. Verfahren zum Herstellen des mit Begrenzungsstreifen versehenen Hüllpapiers (123) nach Anspruch 6, wobei die faserige kristalline Celluloseschlämme vor dem Auftragen auf die Tiefdruckwalze (610) ständig gerührt wird.
  12. Verfahren zum Herstellen des mit Begrenzungsstreifen versehenen Hüllpapiers (123) nach Anspruch 6, wobei die Tiefdruckwalze (610) dafür ausgelegt ist, in einem einzelnen Durchgang eine Menge der faserigen kristallinen Celluloseschlämme aufzutragen, die ausreicht, um eine Selbstlöschlichkeit eines Rauchartikels (120), der das mit Begrenzungsstreifen versehene Hüllpapier (123) aufweist, bereitzustellen.
  13. Verfahren zum Herstellen des mit Begrenzungsstreifen versehenen Hüllpapiers (123) nach Anspruch 6, wobei: (a) die faserige kristalline Celluloseschlämme mikrokristalline Cellulose mit einer Fasergröße von weniger als etwa 200 Mikrometer aufweist; (b) die Tiefdruckwalze (610) sechseckige Zellen (700) aufweist, die durch Zellwände mit einer Dicke von 12 bis 20 Mikrometer voneinander getrennt sind; oder (c) das Drucken der Mehrzahl von in Längsrichtung voneinander beabstandeten Begrenzungsstreifenregionen aus faserigem kristallinem Cellulosematerial das Auftragen der faserigen kristallinen Celluloseschlämme jeder Begrenzungsstreifenregion in einer ersten Zone (202), einer zweiten Zone (203) und einer dritten Zone (204) einschließt, wobei die erste und die dritte Zone (202, 204) etwa die gleiche Menge an faseriger kristalliner Celluloseschlämme aufweisen und die zweite Zone (203) weniger faserige kristalline Celluloseschlämme aufweist als die erste oder die dritte Zone (202, 204).
EP20159740.8A 2019-03-01 2020-02-27 Umhüllungspapier mit tiefgedruckten streifen Active EP3701810B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22166022.8A EP4108106A1 (de) 2019-03-01 2020-02-27 Umhüllungspapier mit tiefgedruckten streifen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16/290,327 US20200275690A1 (en) 2019-03-01 2019-03-01 Gravure printed banded wrapper paper

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP22166022.8A Division EP4108106A1 (de) 2019-03-01 2020-02-27 Umhüllungspapier mit tiefgedruckten streifen

Publications (2)

Publication Number Publication Date
EP3701810A1 EP3701810A1 (de) 2020-09-02
EP3701810B1 true EP3701810B1 (de) 2022-04-06

Family

ID=69742730

Family Applications (2)

Application Number Title Priority Date Filing Date
EP22166022.8A Pending EP4108106A1 (de) 2019-03-01 2020-02-27 Umhüllungspapier mit tiefgedruckten streifen
EP20159740.8A Active EP3701810B1 (de) 2019-03-01 2020-02-27 Umhüllungspapier mit tiefgedruckten streifen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP22166022.8A Pending EP4108106A1 (de) 2019-03-01 2020-02-27 Umhüllungspapier mit tiefgedruckten streifen

Country Status (2)

Country Link
US (1) US20200275690A1 (de)
EP (2) EP4108106A1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263999A (en) * 1991-09-10 1993-11-23 Philip Morris Incorporated Smoking article wrapper for controlling burn rate and method for making same
US6779530B2 (en) * 2002-01-23 2004-08-24 Schweitzer-Mauduit International, Inc. Smoking articles with reduced ignition proclivity characteristics
US20060021625A1 (en) * 2004-07-30 2006-02-02 Philip Morris Usa Inc. Make-your-own smoking article with controlled burn rate
CA2873781A1 (en) 2012-05-16 2013-11-21 Altria Client Services Inc. Novel banded cigarette wrapper with opened area bands

Also Published As

Publication number Publication date
US20200275690A1 (en) 2020-09-03
EP4108106A1 (de) 2022-12-28
EP3701810A1 (de) 2020-09-02

Similar Documents

Publication Publication Date Title
US6929013B2 (en) Wrapping materials for smoking articles
US6976493B2 (en) Wrapping materials for smoking articles
CA2688157C (en) Patterned wrapper paper with an anti-wrinkling agent
EP2849585B1 (de) Neuartiges gebändertes zigarettenpapier mit bändern mit geöffneten bereichen
WO2002037991A1 (en) Process for producing smoking articles with reduced ignition proclivity characteristics and products made according to same
EP2180799B1 (de) Gewelltes gebändertes zigarettenpapier
US11602161B2 (en) Cigarette wrapper with novel pattern
EP2160105B1 (de) Mit zinnen versehenes und gestreiftes zigarettenpapier
US20230301343A1 (en) Low ignition propensity cigarette paper and manufacture thereof
US20230210165A1 (en) Cigarette wrapper with novel pattern
EP3701810B1 (de) Umhüllungspapier mit tiefgedruckten streifen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210226

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20211012

INTG Intention to grant announced

Effective date: 20211027

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1480453

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220415

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602020002495

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20220406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220808

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220706

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220707

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220806

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602020002495

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20230110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

REG Reference to a national code

Ref country code: AT

Ref legal event code: UEP

Ref document number: 1480453

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230227

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220406

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240228

Year of fee payment: 5

Ref country code: CH

Payment date: 20240301

Year of fee payment: 5

Ref country code: GB

Payment date: 20240227

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240226

Year of fee payment: 5