EP2262387B1 - Papier pour filtre ou papier de manchette pour articles à fumer - Google Patents

Papier pour filtre ou papier de manchette pour articles à fumer Download PDF

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Publication number
EP2262387B1
EP2262387B1 EP09717521A EP09717521A EP2262387B1 EP 2262387 B1 EP2262387 B1 EP 2262387B1 EP 09717521 A EP09717521 A EP 09717521A EP 09717521 A EP09717521 A EP 09717521A EP 2262387 B1 EP2262387 B1 EP 2262387B1
Authority
EP
European Patent Office
Prior art keywords
tipping paper
plug wrap
ply
rod
filter
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.)
Not-in-force
Application number
EP09717521A
Other languages
German (de)
English (en)
Other versions
EP2262387A1 (fr
Inventor
Nicole Hooper
Gordon Grierson
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.)
British American Tobacco Investments Ltd
Original Assignee
British American Tobacco Investments Ltd
British American Tobacco Co Ltd
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 British American Tobacco Investments Ltd, British American Tobacco Co Ltd filed Critical British American Tobacco Investments Ltd
Publication of EP2262387A1 publication Critical patent/EP2262387A1/fr
Application granted granted Critical
Publication of EP2262387B1 publication Critical patent/EP2262387B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • 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
    • A24C5/56—Making tipping materials, e.g. sheet cork for mouthpieces of cigars or cigarettes, by mechanical 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/17—Filters specially adapted for simulated smoking devices

Definitions

  • the present invention relates to a plug wrap for a smoking article.
  • the present invention relates also to a tipping paper for a smoking article.
  • the present invention relates also to a method of making a plug wrap or tipping paper for a smoking article.
  • Smoking articles are known wherein an adsorbent-containing web material is positioned between the smoking material rod and the wrapper therefor.
  • WO 2005/082180 discloses smoking articles comprising a rod of smokable material, a wrapper about the rod of smokable material and a web material comprising an adsorbent material and a flavourant, the web material being positioned between the rod of smokable material and the wrapper and advantageously being adhered to the wrapper using an adhesive.
  • the adsorbent material may absorb components of the smoke produced from the smoking material rod, and for example may be carbon.
  • a filler material such as calcium carbonate and a burn additive such as citrate are advantageously used.
  • wrappers for smoking articles in which the wrapper is formed as a single sheet are known.
  • EP-A-0 407 022 discloses a wrapper for smoking articles in which the wrapper comprises a single paper sheet formed from two or more discrete webs, the webs being combined while at least one of the webs is still in the wet stage of formation before drying.
  • EP-A-0 475 580 discloses a wrapper for smoking articles, the wrapper comprising a single paper sheet having two or more plies, each ply being formed from a paper stock and wherein the paper stocks are applied to each other while at least one of the stocks is unformed.
  • one of the plies may contain carbon. Reference is also directed to US 2007/204869A1 .
  • a plug wrap or tipping paper for a smoking article which comprises a sheet comprising first and second plies, wherein:
  • adsorbent material in the plug wrap or tipping paper for a number of reasons.
  • the inclusion of adsorbent in the material constituting the plug wrap or tipping paper allows the use of smaller particles, having a greater surface area to volume ratio, than is found with granules included in filters for instance.
  • the inclusion of adsorbent in the material constituting the plug wrap or tipping paper avoids the need for adhesive to adhere adsorbent particles to a plug wrap, as is found for instance in EP 0 579 410 .
  • Other benefits and advantages will be apparent from the following description.
  • the sheet may comprise more than two plies, it is advantageous that the sheet is a double ply sheet, i.e. has only two plies.
  • the fibrous material present in the first and/or second ply may be a fibrous cellulosic material, for instance a paper material.
  • the fibrous material may, for example, be present in the second ply in an amount of up to 40 g/m 2 .
  • the fibrous material may, for example, be present in first ply in an amount of up to 20 g/m 2 .
  • the total amount of fibrous material in the sheet may be at least 17 g/m 2 .
  • the total amount of fibrous material in the sheet may be up to 60 g/m 2 .
  • the adsorbent material present in the second ply may, for example, be carbon, for instance activated carbon.
  • the activated carbon has an activity level (CTC) of from 60 to 130, and further advantageously from 80-120, and may suitably be approximately 100.
  • the adsorbent material may, for example, be in powder or particulate form. It may be in granular form.
  • the adsorbent material may, for example, be present in the second ply in an amount of up to 40 g/m 2 .
  • the total amount of adsorbent material in the sheet may, for example, be up to 40 g/m 2 .
  • the first and/or second ply may, for example, comprise filler material.
  • suitable filler materials include calcium carbonate titanium dioxide, magnesium oxide, calcium sulphate, clays and kaolins.
  • the filler material may comprise calcium carbonate.
  • the filler material may, for example, be present in the second ply in an amount of up to 25 g/m 2 .
  • the filler material may, for example, be present in the first ply in an amount of up to 15 g/m 2 .
  • the total amount of filler material in said sheet may, for example, be at least 8 g/m 2 .
  • the total amount of filler material in the sheet may, for example, be up to 40 g/m 2 .
  • the second layer of the plug wrap or tipping paper may, for example, comprise flavourant. This is particularly suited to tipping paper.
  • the flavourant is advantageously flavourant selected from the following compound types: menthol (natural and/or synthetic), alcohols, esters, ketones, lactones, essential oils, aldehydes and heterocyclic compounds.
  • a suitable flavourant is menthol.
  • the plug wrap or tipping paper may, for example, have a thickness of at least 45 ⁇ m.
  • the plug wrap or tipping paper may, for example, have a thickness of up to 250 ⁇ m.
  • the second ply extends over at least a part of one surface of the first ply.
  • the second ply may be separated from the first ply by additional plies.
  • the second ply may extend over the whole of one surface of the first ply.
  • the second ply comprises diluent.
  • the flavourant may be added to the adsorbent material prior to forming the second layer.
  • the flavourant may be added to the adsorbent material by spraying.
  • flavourant may be added to the second layer after formation of that layer.
  • flavourant is added to the second layer after formation of the plug wrap or tipping paper.
  • the flavourant may be added to the second layer using a flavour applicator means, advantageously as a stream or streams of flavourant.
  • a flavour applicator means advantageously as a stream or streams of flavourant.
  • the plurality of streams of flavourant is applied to the second layer in a line or in an array.
  • the array may comprise two lines of streams of flavourant, one of the lines being offset from the streams of flavourant in an adjacent line.
  • the flavourant is applied to the surface of the second layer as 1 to 30 streams of flavourant, and advantageously as 4 to 18 streams of flavourant.
  • flavourant is solid at room temperature, it can be heated to maintain the flavourant in the molten liquid state during application to the adsorbent or the second layer, and is advantageously heated to a temperature of 40 to 45°C.
  • the plug wrap or tipping paper may be formed by any suitable method provided that the resultant plug wrap or tipping paper comprises a single sheet.
  • single sheet refers to a sheet in which the plies thereof are integral in the sense that the plies are not merely placed adjacent to one another or adhered to one another using such as adhesive (i.e. as in the case of WO 2005/082180 ).
  • the plug wrap or tipping paper in the form of a single sheet is formed by combining the two or more plies to form the single sheet while at least one of the plies is in the wet stage of formation prior to drying.
  • the plies may be combined while one or of the plies is in the wet stage of formation prior to drying, or while both of the plies are in the wet stage of formation prior to drying.
  • the method may comprise combining the plies while at least one of the plies is still in the wet stage of formation prior to drying. After combining the plies the formed sheet is typically dried.
  • An apparatus suitable for use in preparing the plug wrap or tipping paper may, for example, be a multi-wire paper making machine such as a double wire paper making machine.
  • the present invention further provides a smoking article comprising a wrapped rod of smoking material, and a filter element, wherein the filter element comprises a filter rod and a plug wrap enwrapping the filter rod, the plug wrap being a plug wrap according to the present invention or a plug wrap prepared according to the method of the present invention.
  • the second ply of the plug wrap is advantageously located on the filter rod side of the plug wrap. This allows the adsorbent material to be relatively proximate to the flow of smoke through the smoking article, thereby allowing greater interaction with constituents of the smoke than would be the case if the second ply were an outer ply. This also allows the outward appearance of the plug wrap not to be affected, or to be affected less, by the content of the second ply. This is particularly useful in the case where the adsorbent material in the second ply is carbon.
  • the present invention still further provides a smoking article comprising a wrapped rod of smoking material, a filter element, and wherein the filter element is attached to the rod of smoking material by means of a tipping paper, the tipping paper being a tipping paper according to the present invention or a tipping paper prepared according to the method of the present invention.
  • the tipping paper being a tipping paper according to the present invention or a tipping paper prepared according to the method of the present invention.
  • the second ply of the tipping paper is advantageously located on the filter rod side of the tipping paper. This allows the adsorbent material to be relatively proximate to the flow of smoke through the smoking article, thereby allowing greater interaction with constituents of the smoke than would be the case if the second ply were an outer ply.
  • the filter element may comprise a filter rod enwrapped in a plug wrap, with the plug wrap being located between the filter rod and the tipping paper.
  • the present invention still further provides a smoking article comprising a wrapped rod of smoking material, a filter element, wherein (a) the filter element comprises a filter rod and a plug wrap enwrapping the filter rod, the plug wrap being a plug wrap according to the present invention or a plug wrap prepared according to the method of the present invention, and (b) the filter element is attached to the rod of smoking material by means of a tipping paper, the tipping paper being a tipping paper according to the present invention or a tipping paper prepared according to the method of the present invention.
  • the second ply of the plug wrap is advantageously located on the filter rod side of the plug wrap.
  • the adsorbent material to be relatively proximate to the flow of smoke through the smoking article, thereby allowing greater interaction with constituents of the smoke than would be the case if the second ply were an outer ply.
  • This also allows the outward appearance of the plug wrap not to be affected, or to be affected less, by the content of the second ply. This is particularly useful in the case where the adsorbent material in the second ply is carbon.
  • the second ply of the tipping paper is advantageously located on the filter rod side of the tipping paper.
  • the second ply of the plug wrap and/or the tipping paper is advantageously located on the filter rod side of said plug wrap and/or tipping paper. This can be more aesthetically pleasing to the smoker. That is, the second ply, which contains the adsorbent material, is located between the first ply and the filter rod such that the second ply is not visible to the smoker. Furthermore, in this arrangement the adsorbent material will have greater interaction with constituents of the smoke during smoking (compared to the second ply being on the outer surface of the plug wrap/tipping wrapper).
  • the filter element may comprise a filter rod comprising adsorbent material.
  • suitable adsorbent materials include carbon.
  • the adsorbent material is carbon and more advantageously is activated carbon. Any form of activated carbon may be used.
  • the activated carbon has an activity level (CTC) of from 60 to 130, and preferably from 80-120, and suitably for example approximately 100.
  • the adsorbent material when present in the filter element, may, for example, be in granular, powder or particulate form.
  • the filter element may be a multiple filter comprising multiple sections such as, for example, a dual or triple filter. Suitable filters are well known to those skilled in the art.
  • a preferred filter element contains adsorbent material for the reduction of vapour phase constituents of smoke.
  • Such filters known in the art include Dalmatian filters in which particulate adsorbent material is interspersed in fibrous filter material, for example fibrous cellulosic material, and cavity filters in which a cavity portion of the multi-segment filter contains adsorbent material.
  • the second layer contains flavourant, such flavourant is released from the second layer during smoking of the smoking article without adversely affecting the ability of the adsorbent in the filter to reduce vapour phase constituents of the smoke.
  • the smoking article comprises a filter element comprising a filter rod
  • the filter rod comprises adsorbent material
  • the filter rod may comprise a cellulose acetate mouth end section and a Dalmation rod section, containing the adsorbent material, located at the smoking material rod end of the filter element.
  • the smoking article comprises a filter element comprising a filter rod
  • the filter rod comprises adsorbent material
  • the filter rod may be a cavity filter comprising two end sections and a central cavity containing said adsorbent material.
  • the filter rod of a smoking article comprises adsorbent material
  • the presence of adsorbent material in the plug wrap and/or tipping paper according to the present invention increases the reduction in vapour phase components, compared to the use of the filter alone.
  • the presence of adsorbent in the plug wrap and/or tipping paper according to the present invention may improve the efficiency of the filter in reducing vapour phase constituents in smoke generated during smoking of the smoking article.
  • the filter element may alternatively comprise a filter plug of homogeneous filtration material, a plug wrap overwrapping the filter plug, circumferentially spaced grooves extending longitudinally of the filter plug, and a ventilating tipping paper interconnecting the filter element to a tobacco rod, a number of grooves being open on the side of the tobacco rod and extending continuously only over a part of the length of the filter element, and hence not up to the mouth end of the filter element, which grooves are axially aligned with respect to the filter axis, in to which axially extending grooves ventilating air enters via overlying ventilating tipping paper, and any mouth extending groove not being ventilated.
  • the smoking material may be a tobacco-containing smoking material or a non-tobacco-containing smoking material.
  • the smoking material is a tobacco-containing material, and more advantageously the smoking material is a tobacco material.
  • the tobacco material comprises of stem, lamina and tobacco dust.
  • An example, of a tobacco material is one containing of the following tobacco types: Virginia or flue-cured tobacco, Burley tobacco, Oriental tobacco, reconstituted tobacco and stem.
  • the smoking material comprises a blend of tobacco material.
  • the tipping paper may enwrap the whole of the filter element and extend part of the way along the smoking material rod.
  • the tipping paper may be a narrow strip of material which extends over only a part, for example a small part, of the length of the filter element and smoking material rod.
  • the smoking article is a cigarette.
  • a method of making a plug wrap or tipping paper for a smoking article comprising combining a first ply comprising fibrous material and a second ply comprising fibrous material and adsorbent material to make a two-ply sheet.
  • FIG. 1 shows a smoking article 1 in longitudinal cross-section.
  • the smoking article 1 comprises a rod 2 of smokable material enwrapped by a wrapper 4 and a filter rod 3.
  • the filter rod 3 is positioned at a mouth end of the smoking article 1.
  • the filter rod 3 is enwrapped by a plug wrap 5.
  • the filter rod 3 is attached to the rod of smokable material 2 by a tipping paper 6.
  • Each of the wrapper 4, the plug wrap 5 and the tipping paper 6 is made of a respective single sheet.
  • the plug wrap 5 extends for the entire length of the filter rod 3 in the longitudinal axis of the smoking article 1.
  • the plug wrap 5 thus enwraps the entire radial surface of the filter rod 3.
  • the filter rod 3 may be a multiple filter comprising multiple sections such as, for example, a dual or triple filter.
  • Suitable filters are well known to those skilled in the art.
  • the filter 3 may include adsorbent material, for instance activated carbon, for the reduction of vapour phase constituents of smoke.
  • Suitable filters include Dalmation filters in which particulate adsorbent material is interspersed in fibrous filter material, for example fibrous cellulosic material, and cavity filters in which a cavity portion of the multi-segment filter contains one or more adsorbent material, for instance activated carbon.
  • the flavourant is released from the second ply during smoking of the smoking article without being adsorbed by the adsorbent material of the filter and without adversely affecting the ability of the adsorbent in the filter to reduce vapour phase constituents of the smoke. It is possible that the smoke drawn through the filter during smoking is of such a temperature as to at least partially volatilise the flavourant.
  • the filter rod 3 may alternatively comprise a filter plug of homogeneous filtration material, a plug wrap overwrapping the filter plug, circumferentially spaced grooves extending longitudinally of the filter plug, and a ventilating tipping paper interconnecting the filter element to a tobacco rod, a number of grooves being open on the side of the tobacco rod and extending continuously only over a part of the length of the filter element, and hence not up to the mouth end of the filter element, which grooves are axially aligned with respect to the filter axis, in to which axially extending grooves ventilating air enters via overlying ventilating tipping paper, and any mouth extending groove not being ventilated.
  • the wrapper 4 and the plug wrap 5 meet at the boundary of the filter rod 3 and the smokable rod 2.
  • the wrapper 4 and the plug wrap 5 do not overlap one another.
  • the wrapper 4 and the plug wrap 5 are at least partially enwrapped by the tipping paper 6.
  • the tipping paper 6 may extend over the whole length of the filter rod 3 and a part of the length of the smokable rod 2. Alternatively, the tipping paper 6 may extend over only a part of the filter rod 3 and a part of the length of the smokable rod 2.
  • the smokable rod 2 comprises a smoking material.
  • the smoking material is a tobacco-containing smoking material or a non-tobacco-containing smoking material.
  • the smoking material may be a tobacco-containing material, or a tobacco material.
  • the tobacco material comprises one or more of stem, lamina and tobacco dust.
  • An example, of a tobacco material is one containing one or more of the following tobacco types: Virginia or flue-cured tobacco, Burley tobacco, Oriental tobacco, reconstituted tobacco and stem.
  • the smoking material may comprise a blend of tobacco material.
  • Figure 2 shows a sheet 8 comprising two plies 10, 11.
  • the sheet 8 constitutes the plug wrap 5 and/or the tipping paper 6.
  • the thickness of the plug wrap 5 and the tipping paper 6 is similar to that of conventional cigarette papers.
  • the first ply 10 is comprised of fibrous material.
  • the second ply 11 is comprised of adsorbent material, fibrous material and optionally flavourant.
  • the adsorbent material is carbon.
  • the fibrous material is a fibrous cellulosic material, such as paper.
  • the flavourant if present, may for instance be a menthol flavourant.
  • the two plies 10, 11 are integral in the sense that they are not merely placed adjacent to one another or adhered to one another using such as an adhesive, but are formed as a single sheet. The sheets may be said to be adhered together by the fibre bonding inherent in the papermaking process.
  • the plug wrap 5 and the tipping paper 6 are formed using a double-wire process, as described below.
  • Figure 3 shows a transverse cross-section through the filter rod 3 of Figure 1 along line x-x of Figure 1 with 2-ply plug wrap 5 and with conventional tipping paper 6 enwrapping the filter rod 3.
  • the first ply 20 of the plug wrap 5 is the external ply.
  • the outer surface of the first ply 20 of the plug wrap 5 is adjacent to the inner surface of the tipping paper 6.
  • the second ply 21 of the plug wrap 5 is the interior ply.
  • the inner surface of the second ply 21 of the plug wrap 5 is adjacent to the filter rod 3.
  • the outer surface of the tipping paper 6 corresponds to the exterior surface of the tipping paper 6 and thus the exterior surface of the smoking article 1.
  • FIG 4 shows a transverse cross-section through the filter rod 3 of Figure 1 along line x-x of Figure 1 of an alternative embodiment.
  • conventional plug wrap 5 and 2-ply tipping paper 6 enwrapping the filter rod 3.
  • the first ply 30 of the tipping paper 6 is the external ply.
  • the outer surface of the first ply 30 of the tipping paper 6 corresponds to the exterior surface of the tipping paper 6 and thus the exterior surface of the smoking article 1.
  • the second ply 31 of the tipping paper 6 is the internal ply.
  • the inner surface of the second ply 31 of the tipping paper 6 is adjacent to the outer surface of the plug wrap 5.
  • the inner surface of the plug wrap 5 is adjacent to the filter rod 3.
  • Figure 5 shows a transverse cross-section through the filter rod 3 of Figure 1 along line x-x of Figure 1 with a still further embodiment.
  • 2-ply plug wrap 5 and 2-ply tipping paper 6 enwrapping the filter rod 3.
  • the arrangement of the 2-ply plug wrap 5 is same as that of the embodiment shown in Figure 3 and the arrangement of the 2-ply tipping paper 6 is same as that of the embodiment shown in Figure 4 .
  • the outer surface of the first ply 20 of the plug wrap 5 is adjacent to the inner surface of the second ply 31 of the tipping paper 6.
  • the plug wrap 5 is omitted.
  • the tipping paper 6 is formed of the sheet 8 shown in Figure 2 .
  • the tipping paper 6 extends over the whole length of the filter rod 3 and a part of the length of the smokable rod 2 and thus also serves the function of the plug wrap 5.
  • the smoking article 1 Upon smoking, the smoking article 1 is ignited at the end furthest from the filter rod 3. Smoke is drawn along the smokable rod 2 to the smoker.
  • the presence of the adsorbent material in the plug wrap and/or tipping paper improves the smoking article. This is achieved because the adsorbent material reduces vapour phase constituents generated during smoking of the smoking article 1.
  • Figure 6 is a flow chart illustrating a method in making the sheet 8 which, as explained above can be used as 2-ply plug wrap 5 and/or 2-ply tipping paper 6.
  • the first ply 10 and the second ply 11 are made separately.
  • the first and second plies 10, 11 have different compositions.
  • the plies 10, 11 may be of different thicknesses.
  • the first ply 10 comprises fibrous material and filler.
  • the fibrous material is a fibrous cellulosic material.
  • the fibrous cellulosic material is a paper material.
  • the filler may be calcium carbonate (chalk), titanium dioxide, magnesium oxide, calcium sulphate, clays or a kaolin.
  • the filler is calcium carbonate.
  • the one or more filler material may, for example, be present in the second ply in an amount of up to 25 g/m 2 .
  • the one or more filler material may, for example, be present in the first ply in an amount of up to 15 g/m 2 .
  • the total amount of filler material in said sheet may, for example, be at least 8 g/m 2 .
  • the total amount of filler material in the sheet 8 may, for example, be up to 40 g/m 2 .
  • the second ply 11 comprises adsorbent material, fibrous material, and optionally flavourant.
  • the fibrous material is a fibrous cellulosic material.
  • the fibrous cellulosic material is a paper material.
  • the fibrous material is present in the second ply 11 in an amount of up to 40 g/m 2 .
  • the fibrous material is present in first second ply 11 in an amount of up to 20 g/m 2 .
  • the adsorbent material may be carbon, or it may be another suitable adsorbent.
  • the adsorbent material may be activated carbon. Any form of activated carbon may be used.
  • the activated carbon may have an activity level (CTC) of from 60 to 130.
  • the activated carbon has an activity level of about 100, or between 80 and 120, or approximately 100.
  • the adsorbent material advantageously is in powder or particulate form. It may alternatively be in granular form.
  • the adsorbent material is present in the second ply in an amount of up to 40 g/m 2 .
  • the flavourant may be any of the following: menthol (natural and/or synthetic), alcohols, esters, ketones, lactones, essential oils, aldehydes and heterocyclic compounds. A different, suitable flavourant may be may used instead.
  • the flavourant is added to the adsorbent material prior to forming the second ply.
  • the flavourant may be added to the second ply 11, after the inclusion of the adsorbent material, by spraying.
  • the flavourant may be added to the second ply using a flavour applicator means, for instance as a stream or streams of flavourant.
  • the plurality of streams of flavourant is applied to the second ply in a line or in an array.
  • the array When applied in an array, the array may comprise two lines of streams of flavourant, one of the lines being offset from the streams of flavourant in an adjacent line.
  • the flavourant is applied to the surface of the second ply as 1 to 30 streams of flavourant, and preferably as 4 to 18 streams of flavourant. If the flavourant is solid at room temperature, it is heated to maintain the flavourant in the molten liquid state during application to the second ply 11, and may be heated to a temperature of 40 to 45°C.
  • flavourant can be added to the second ply 11 after formation of the two-ply paper.
  • the second ply also comprises filler.
  • the filler may be calcium carbonate (chalk), titanium dioxide, magnesium oxide, calcium sulphate, clays or a kaolin.
  • the filler is calcium carbonate.
  • the filler material is present in the second ply in an amount of up to 25 g/m 2 .
  • first and second plies 10, 11 separately, it can be useful to consider the materials and physical characteristics of the resulting paper when determining what compositions to give to the plies 10, 11.
  • the two-ply sheet has a thickness of at least 45 ⁇ m.
  • the two-ply sheet has a thickness of up to 250 ⁇ m.
  • the total amount of filler material in the sheet is at least 8 gsm.
  • the total amount of filler material in the sheet 8 is up to 40 g/m 2 .
  • the total amount of fibrous material in the sheet is at least 17 gsm.
  • the total amount of fibrous material in the sheet 8 is up to 60 g/m 2 .
  • the first and second plies 10, 11 are pressed together so as to form a single sheet of paper using a double-wire paper making machine.
  • Double-wire paper making machines are well known in the art so this step will not be described in detail.
  • the result is a sheet of paper comprising a wet web having the first and second plies 10, 11.
  • the wet web is flat with no creping.
  • the wet web is dried using a series of drying drums to form a sheet of paper.
  • the dried sheet is rolled onto a bobbin, for storage and/or transportation.
  • the dried sheet is then used as a plug wrap and/or tipping paper for smoking articles, e.g. cigarettes, made using a conventional cigarette manufacturing machine.
  • the main structural difference between the resulting cigarettes and conventional cigarettes is the composition of the plug wrap and/or tipping paper.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Paper (AREA)
  • Filtering Materials (AREA)
  • Catching Or Destruction (AREA)
  • Manufacture Of Tobacco Products (AREA)

Claims (23)

  1. Papier pour filtre ou papier de manchette pour un article à fumer, qui comprend une feuille, caractérisé en ce qu'il comprend des première et deuxième couches (10, 11), dans lequel :
    la première couche (10) comprend un matériau fibreux ; et
    la deuxième couche (11) comprend un matériau fibreux et un matériau adsorbant.
  2. Papier pour filtre ou papier de manchette selon la revendication 1, dans lequel ledit adsorbant est du charbon.
  3. Papier pour filtre ou papier de manchette selon la revendication 2, dans lequel ledit carbone est du charbon actif.
  4. Papier pour filtre ou papier de manchette selon la revendication 3, dans lequel ledit charbon actif a un niveau d'activité (CTC) de 60-130, facultativement de 80-120, facultativement d'environ 100.
  5. Papier pour filtre ou papier de manchette selon l'une quelconque des revendications précédentes, dans lequel ladite deuxième couche comprend en outre un agent aromatique.
  6. Papier pour filtre ou papier de manchette selon l'une quelconque des revendications précédentes, dans lequel ladite deuxième couche comprend un matériau de remplissage.
  7. Papier pour filtre ou papier de manchette selon la revendication 5 ou la revendication 6, dans lequel ledit matériau de remplissage est présent dans ladite deuxième couche selon une quantité jusqu'à 25 g/m2.
  8. Papier pour filtre ou papier de manchette selon l'une quelconque des revendications précédentes, dans lequel la première couche comprend un matériau de remplissage.
  9. Papier pour filtre ou papier de manchette selon la revendication 6 ou 8, dans lequel ledit matériau de remplissage comprend du carbonate de calcium.
  10. Papier pour filtre ou papier de manchette selon la revendication 8, dans lequel ledit matériau de remplissage est présent dans ladite première couche selon une quantité allant jusqu'à 15 g/m2.
  11. Papier pour filtre ou papier de manchette selon l'une quelconque des revendications 6 à 10, dans lequel la quantité totale du matériau de remplissage dans ladite feuille va jusqu'à 40 g/m2.
  12. Papier pour filtre ou papier de manchette selon l'une quelconque des revendications précédentes, dans lequel le matériau fibreux est présent dans ladite première couche selon un montant allant jusqu'à 20 g/m2.
  13. Papier pour filtre ou papier de manchette selon l'une quelconque des revendications précédentes, dans lequel la quantité totale d'un matériau fibreux dans ladite feuille va jusqu'à 60 g/m2.
  14. Papier pour filtre ou papier de manchette selon l'une quelconque des revendications précédentes, dans lequel la quantité totale d'un matériau fibreux dans ladite feuille est d'au moins 17 g/ m2.
  15. Papier pour filtre ou papier de manchette selon l'une quelconque des revendications précédentes, dans lequel la couche du papier pour filtre ou papier de manchette est d'au moins 45 µm.
  16. Papier pour filtre ou papier de manchette selon l'une quelconque des revendications précédentes, dans lequel la couche du papier pour filtre ou papier de manchette va jusqu'à 250 µm.
  17. Papier pour filtre ou papier de manchette selon l'une quelconque des revendications précédentes, dans lequel ladite deuxième couche comprend un diluant.
  18. Elément de filtre comprenant une tige de filtre (3) et un papier pour filtre (5) enveloppant ladite tige de filtre, ledit papier pour filtre étant un papier pour filtré selon l'une quelconque des revendications 1 à 17.
  19. Article à fumer comprenant une tige enveloppée de matériau à fumer et un élément de filtre, dans lequel :
    ledit élément de filtre comprend une tige de filtre et un papier pour filtre enveloppant ladite tige de filtre,
    ledit papier pour filtre étant un papier pour filtre selon l'une quelconque des revendications 1 à 17 ou ledit élément de filtre est fixé à ladite tige de matériau à fumer au moyen d'un papier de manchette (6), ledit papier de manchette étant un papier de manchette selon l'une quelconque des revendications 1 à 17.
  20. Article à fumer selon la revendication 19, dans lequel ladite deuxième couche dudit papier de manchette est positionnée du côté de la tige de filtre dudit papier de manchette.
  21. Article à fumer comprenant une tige enveloppée de matériau à fumer, et un élément de filtre, dans lequel (a) ledit élément de filtre comprend une tige de filtre et un papier pour filtre enveloppant ladite tige de filtre, ledit papier pour filtre étant un papier pour filtre selon l'une quelconque des revendications 1 à 17, et (b) ledit élément de filtre est fixé à ladite tige de matériau à fumer au moyen d'un papier de manchette, ledit papier de manchette étant un papier de manchette selon l'une quelconque des revendications 1 à 17.
  22. Procédé pour fabriquer un papier pour filtre ou un papier de manchette pour un article à fumer, le procédé comprenant l'étape consistant à combiner une première couche comprenant un matériau fibreux et une deuxième couche comprenant un matériau fibreux et un matériau adsorbant en utilisant une machine de fabrication de papier à plusieurs toiles pour fabriquer le papier à deux couches.
  23. Procédé selon la revendication 22, comprenant l'étape consistant à combiner lesdites couches alors qu'au moins l'une desdites couches est encore à l'étape mouillée de formation avant le séchage.
EP09717521A 2008-03-07 2009-01-29 Papier pour filtre ou papier de manchette pour articles à fumer Not-in-force EP2262387B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0804273.1A GB0804273D0 (en) 2008-03-07 2008-03-07 Plug wrap or tipping papaer for smoking articles
PCT/EP2009/051029 WO2009109433A1 (fr) 2008-03-07 2009-01-29 Papier pour filtre ou papier de manchette pour articles à fumer

Publications (2)

Publication Number Publication Date
EP2262387A1 EP2262387A1 (fr) 2010-12-22
EP2262387B1 true EP2262387B1 (fr) 2011-08-10

Family

ID=39327713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09717521A Not-in-force EP2262387B1 (fr) 2008-03-07 2009-01-29 Papier pour filtre ou papier de manchette pour articles à fumer

Country Status (15)

Country Link
US (1) US20110180088A1 (fr)
EP (1) EP2262387B1 (fr)
KR (1) KR20100127819A (fr)
CN (1) CN102014675A (fr)
AT (1) ATE519386T1 (fr)
AU (1) AU2009221424B2 (fr)
CA (1) CA2718799A1 (fr)
CL (1) CL2009000500A1 (fr)
GB (1) GB0804273D0 (fr)
MY (1) MY183826A (fr)
RU (1) RU2517611C2 (fr)
TW (1) TW201013021A (fr)
UA (1) UA99181C2 (fr)
WO (1) WO2009109433A1 (fr)
ZA (1) ZA201006870B (fr)

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WO2013173469A1 (fr) * 2012-05-17 2013-11-21 Loec, Inc. Procédé et compositions permettant de délivrer des quantités variables d'arôme à partir de cigarettes à bout filtre
AT513411B1 (de) * 2012-09-17 2015-05-15 Tannpapier Gmbh Mundstückbelagspapier für eine Filterzigarette
TW201438607A (zh) * 2012-10-16 2014-10-16 British American Tobacco Co 菸品包裝紙及製作菸品之方法
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Also Published As

Publication number Publication date
AU2009221424A1 (en) 2009-09-11
ZA201006870B (en) 2014-03-26
WO2009109433A1 (fr) 2009-09-11
CA2718799A1 (fr) 2009-09-11
GB0804273D0 (en) 2008-04-16
UA99181C2 (ru) 2012-07-25
TW201013021A (en) 2010-04-01
AU2009221424B2 (en) 2013-08-15
EP2262387A1 (fr) 2010-12-22
RU2517611C2 (ru) 2014-05-27
ATE519386T1 (de) 2011-08-15
CL2009000500A1 (es) 2010-01-04
KR20100127819A (ko) 2010-12-06
CN102014675A (zh) 2011-04-13
US20110180088A1 (en) 2011-07-28
RU2010140855A (ru) 2012-04-20
MY183826A (en) 2021-03-17

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