EP3027069A1 - Tobacco smoke filter and method of production - Google Patents
Tobacco smoke filter and method of productionInfo
- Publication number
- EP3027069A1 EP3027069A1 EP14752576.0A EP14752576A EP3027069A1 EP 3027069 A1 EP3027069 A1 EP 3027069A1 EP 14752576 A EP14752576 A EP 14752576A EP 3027069 A1 EP3027069 A1 EP 3027069A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filters
- wrapper
- filter elements
- filter
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 56
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims description 28
- 238000004519 manufacturing process Methods 0.000 title description 9
- 244000061176 Nicotiana tabacum Species 0.000 title 1
- 241000208125 Nicotiana Species 0.000 claims abstract description 54
- 230000009977 dual effect Effects 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 34
- 238000001914 filtration Methods 0.000 claims description 24
- 229920002301 cellulose acetate Polymers 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000000047 product Substances 0.000 description 65
- 239000000654 additive Substances 0.000 description 13
- 230000000996 additive effect Effects 0.000 description 13
- 235000019504 cigarettes Nutrition 0.000 description 10
- 239000000796 flavoring agent Substances 0.000 description 7
- 239000000975 dye Substances 0.000 description 6
- 239000000049 pigment Substances 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 235000013355 food flavoring agent Nutrition 0.000 description 5
- 239000004014 plasticizer Substances 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 5
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 229940041616 menthol Drugs 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000004049 embossing Methods 0.000 description 3
- 239000004113 Sepiolite Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910052624 sepiolite Inorganic materials 0.000 description 2
- 235000019355 sepiolite Nutrition 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 244000144730 Amygdalus persica Species 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 244000223760 Cinnamomum zeylanicum Species 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 244000131522 Citrus pyriformis Species 0.000 description 1
- 235000016623 Fragaria vesca Nutrition 0.000 description 1
- 240000009088 Fragaria x ananassa Species 0.000 description 1
- 235000011363 Fragaria x ananassa Nutrition 0.000 description 1
- 244000024873 Mentha crispa Species 0.000 description 1
- 235000014749 Mentha crispa Nutrition 0.000 description 1
- 244000246386 Mentha pulegium Species 0.000 description 1
- 235000016257 Mentha pulegium Nutrition 0.000 description 1
- 235000004357 Mentha x piperita Nutrition 0.000 description 1
- 244000270834 Myristica fragrans Species 0.000 description 1
- 235000009421 Myristica fragrans Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000016639 Syzygium aromaticum Nutrition 0.000 description 1
- 244000223014 Syzygium aromaticum Species 0.000 description 1
- 244000299461 Theobroma cacao Species 0.000 description 1
- 244000290333 Vanilla fragrans Species 0.000 description 1
- 235000009499 Vanilla fragrans Nutrition 0.000 description 1
- 235000012036 Vanilla tahitensis Nutrition 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003957 anion exchange resin Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 235000019219 chocolate Nutrition 0.000 description 1
- 235000017803 cinnamon Nutrition 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000001050 hortel pimenta Nutrition 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000001702 nutmeg Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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
- A24C5/40—Hand-driven apparatus for making cigarettes
-
- 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
Definitions
- the present invention relates to tobacco smoke filters or filter elements and methods of their production.
- Non-Wrapped Acetate (NWA) filters are well-known in the art.
- NWA filters comprise a self-sustaining body of continuous crimped cellulose acetate filaments bonded at their points of contact.
- NWA filters are characterized from conventional cigarette filters because the former do not require a separate plugwrap to wrap the filter and hold the fibrous bundle in place with a controlled circumference.
- NWA filters may be manufactured by a process similar to that described in UK Patent No. 1 169932 (US3,455,766).
- NWA filters may be sold as Pop-a-TipTM filters for Roll-Your-Own (RYO) Smokers; they are well known and available from Filtrona Filters.
- Pop-a-Tip filters comprise a series of NWA filters (filter tips) wrapped in a transparent film e.g. made of BOPP or cellophane - e.g. six 14mm filters contained in a Pop-a-Tip rod of 84mm length.
- NWA filters are individually pushed (or 'popped') out of the transparent wrap by smokers of RYO products, who then use the filter when rolling their cigarette.
- NWA filters are preferred over more conventional wrapped acetate (WA) filters, because it is much more difficult to 'pop' a WA filter from the transparent film due to increased frictional forces.
- WA wrapped acetate
- the product can be tricky to use as a certain amount of dexterity is required to push the filter tips out from the surrounding film (e.g. some bending and flexing of the Pop-a-Tip may be necessary).
- the empty film-wrap needs to be separately discarded, creating a potential additional littering problem.
- a product rod comprising a plurality (e.g. two or more, e.g. 4-6) of individual tobacco smoke filters or filter elements abutted end to end; and a (common) wrapper engaged around the plurality of filters or filter elements, the wrapper including a (or at least one) line (e.g. a line of weakness) formed in but not through the wrapper (e.g. a or at least one line scored into or impressed into (but not through) the wrapper).
- the individual tobacco smoke filters (or individual tobacco smoke filter elements) are preferably (substantially) identical (with each other).
- the product rod preferably comprises a plurality (e.g. two or more, e.g.
- wrapper engaged around the plurality of filters or filter elements, the wrapper including a (or at least one) line (e.g. a line of weakness) formed in but not through the wrapper (e.g. a or at least one line scored into or impressed into (but not through) the wrapper).
- a line of weakness e.g. a line of weakness
- a product rod comprising a plurality (e.g. two or more, e.g. 4-6) of individual tobacco smoke filters or filter elements abutted end to end; and a (common) wrapper engaged around the plurality of filters or filter elements, the wrapper including a line (e.g. a line of weakness) substantially in register with (e.g. in register with, or within 3mm of) the or each junction between abutted filters or filter elements (that is, substantially in register with (e.g. in register with, or within 3mm of) each region where adjacent filters or filter elements abut each other), the or each line being formed in but not through the wrapper [e.g.
- the product rod preferably comprises a plurality (e.g. two or more, e.g. 4-6) of individual identical tobacco smoke filters or individual identical filter elements abutted end to end; and a (common) wrapper engaged around the plurality of filters or filter elements, the wrapper including a line (e.g. a line of weakness) substantially in register with (e.g. in register with, or within 3mm of) the or each junction between abutted filters or filter elements (that is, substantially in register with (e.g. in register with, or within 3mm of) each region where adjacent filters or filter elements abut each other), the or each line being formed in but not through the wrapper [e.g. scored into or impressed into (but not through) the wrapper)].
- a line e.g. a line of weakness
- the product may include more than one line (e.g. more than one line of weakness) substantially in register with (e.g. in register with, or within 3mm of) the or each junction between abutted filters or filter elements (that is, more than one line substantially in register with (e.g. in register with, or within 3mm of) each region where adjacent filters or filter elements abut each other), these lines being formed in but not through the wrapper [e.g. scored into or impressed into (but not through) the wrapper)].
- the lines around a junction will be closely spaced, but may be of diiferent widdths and/or different separations.
- the term identical means the same (equal, alike); in other words each individual filter has such a close similarity or resemblance to the others as to be essentially equal or interchangeable.
- each (individual) filter may include more than one filter element.
- each (individual) filter may be a dual or triple filter, as is well known in the art.
- the wrapper may be a paper (e.g. a plugwrap) or other sheet material.
- the paper may be a paper having basis weight of 20-140gsm, preferably 20-to 80gsm, more preferably 50 to 70gsm, for example 60gsm.
- the paper may be air permeable, or impermeable.
- the wrapper may be a cellulosic film or a cellulosic based film.
- the wrapper may be biodegradable.
- the wrapper has the 'Ready Biodegradability' level of biodegradability as measured according to OECD 301 B 'Ready Biodegradability' method (modified Sturm test), which is well known in the art.
- scoring works better when the common product wrapper is a thicker or heavier-weight paper of basis weight above 50 gsm, e.g. 50 to 70 gsm (with the additional advantage that the heavier weight paper also provides a better 'quality' feel to the product).
- a paper of basis weight from 20 to 80 gsm offers a good compromise between ease of manufacture and cost.
- Forming the line (of weakness) in but not through the wrapper, e.g. by scoring the paper may be carried out either before (to the wrapper) or after the product is assembled (after the wrapper has been engaged around the filters/filter elements) (i.e. in-line).
- the product may therefore be assembled at high speed using convention cigarette filter making machinery, which is a significant benefit.
- the or each line (e.g. a line of weakness) formed (e.g. scored) in but not through the wrapper may be a continuous line or a discontinuous line.
- a continuous line is preferred.
- the line is a continuous scored line (although the line may be a discontinuous scored line).
- the product rod of the invention allows the smoker to easily pull or bend the product rod at each join (junction between abutted filters) to snap off individual filters/elements.
- the line formed (impressed, scored) in but not through the wrapper substantially in register with each junction between abutted filters/elements allows a clean break (in the wrapper) between abutting filters/elements to be achieved; a jagged break would be unsightly and unacceptable to the consumer.
- the (outer) wrapper of the snapped-off filter forms part of the filter tip to be used, rather than becoming redundant (as in the case of conventional Pop-a-Tips). Both WA (wrapped acetate) and NWA filters can be used in this product, increasing flexibility for the filter manufacturer.
- the phrase "formed (or impressed, or scored) in but not through the wrapper” means that the line (e.g. of weakness) does not cut completely through the wrapper.
- a perforation or line of perforations is not “formed in but not through the wrapper” (because perforation(s) are holes which extend through the wrapper).
- the (or each) line formed (impressed, scored) in but not through the wrapper may be made by any means known in the art, e.g. knife (e.g. rotary knife), folding or other mechanical means.
- the line formed (impressed, scored) in but not through the wrapper is visible to the naked eye (e.g sufficiently large that the consumer can see the line on the outside of the product rod, enabling him or her to clearly identify the point at which the rod should be snapped).
- the line formed (impressed, scored) in but not through the wrapper may be 0.01 to 0.5 mm wide, preferably 0.01 to 0.1 mm wide. The applicants have found that a line of this width may give a good visual cue, and provides optimum 'snap' characteristics. A narrower line may give an uneven or poor 'snap', whilst a wider line can result in the paper wrapper being too weak to be processed on conventional filter making and/or packaging machinery.
- the product may include a further printed line (e.g. of contrasting colour to the (common) wrapper) on or in the vicinity of the line which is formed in (scored) but not through the wrapper.
- a further printed line e.g. of contrasting colour to the (common) wrapper
- Such a printed line may give an additional visual cue as to where the product should be bent or snapped to release a filter.
- a product rod comprising a plurality of (e.g. two or more, e.g. 4 to 6) individual tobacco smoke filters or filter elements abutted end to end; and a (common) wrapper engaged around the plurality of filters or filter elements, the wrapper including a line (e.g. a line of weakness) formed in but not through the wrapper (e.g. a line scored into or impressed into (but not through) the wrapper), the line extending from one end of the product rod to the other end and defining a helix about the periphery (outer surface) of the product rod.
- a line e.g. a line of weakness
- the consumer peels back a strip along the helical line to allow filters/filter elements to be sequentially released for use, the remaining wrapper holding the remaining filters in place.
- the individual tobacco smoke filters are preferably (substantially) identical (with each other).
- the product rod preferably comprises a plurality (e.g. two or more, e.g. 4-6) of individual identical tobacco smoke filters or individual identical filter elements abutted end to end; and a (common) wrapper engaged around the plurality of filters or filter elements, the wrapper including a line (e.g. a line of weakness) formed in but not through the wrapper (e.g.
- the pitch of the helix defined by the line (e.g. line of weakness) formed in but not through the wrapper (that is the distance along the helical axis that results in one full turn of the helix) is the length of a single individual filter or filter element.
- peeling back the strip along the line for a single turn of the helix releases a single filter/filter element.
- the line formed (impressed, scored) in but not through the wrapper may be made by any means known in the art, e.g.
- the line formed (impressed, scored) in but not through the wrapper is visible to the naked eye (e.g sufficiently large that the consumer can see the line on the outside of the product rod, enabling him or her to clearly identify the point at which the rod should be snapped).
- the line formed (impressed, scored) in but not through the wrapper may be 0.01 to 0.5 mm wide, preferably 0.01 to 0.1 mm wide.
- the product may include a further printed line (e.g. of contrasting colour to the (common) wrapper) on or in the vicinity of the line which is formed in (scored) but not through the wrapper.
- a further printed line e.g. of contrasting colour to the (common) wrapper
- Such a printed line may give an additional visual cue as to where the product should be bent or snapped to release a filter.
- the line (e.g. a line of weakness) formed (e.g. scored) in but not through the wrapper may be a continuous line or a discontinuous line.
- a continuous line is preferred.
- the line is a continuous scored line (although the line may be a discontinuous scored line).
- the wrapper may be a paper (e.g. a plugwrap) or other sheet material.
- the paper may be a paper having basis weight of 20-140gsm, preferably 20-to 80gsm, more preferably 50 to 70gsm, for example 60gsm.
- the paper may be air permeable, or impermeable.
- the wrapper may be a cellulosic film or a cellulosic based film.
- the wrapper may be biodegradable.
- the wrapper has the 'Ready Biodegradability' level of biodegradability as measured according to OECD 301 B 'Ready Biodegradability' method (modified Sturm test), which is well known in the art.
- the individual (e.g. identical or substantially identical) filters or filter elements may include a substantially cylindrical core of tobacco smoke filtering material.
- the tobacco smoke filtering material may be for example any of those materials (usually filamentary, fibrous, web or extruded) conventionally employed for tobacco smoke filter manufacture.
- the filtering material may be natural or synthetic filamentary tow, e.g. of cotton or plastics such as polyethylene or polypropylene, or cellulose acetate filamentary tow. It may be, for example, natural or synthetic staple fibres, cotton wool, web material such as paper (usually creped) and synthetic non-wovens, and extruded material (e.g. starch, synthetic foams).
- the filtering material may be paper (e.g. bleached or unbleached paper).
- the individual filter or filter element may further comprise a further wrapper.
- the further wrapper may be a paper (e.g. plugwrap).
- the (individual) (e.g. identical or substantially identical) filters or filter elements may comprise a self-sustaining (longitudinally extending) cylindrical core.
- self-sustaining as in “self-sustaining substantially cylindrical core", “self-sustaining longitudinally extending substantially cylindrical core” etc.
- a further wrapper of e.g. plugwrap
- the (individual) (e.g. identical or substantially identical) filters or filter elements may comprise a self-sustaining (longitudinally extending) cylindrical core comprising (e.g. formed from) a plurality of longitudinally extending substantially continuous filaments of tobacco smoke filtering material (e.g. cellulose acetate tow) which are bonded at their points of contact.
- the filters or filter elements may comprise a self- sustaining (longitudinally extending) cylindrical core comprising (e.g. formed from) a plurality of randomly oriented (e.g. individual or staple) fibres of tobacco smoke filtering material (e.g. cellulose acetate) which are bonded at their points of contact.
- the continuous filaments of tobacco smoke filtering material are continuous filaments (or randomly oriented fibres) of cellulose acetate tow.
- the tobacco smoke filtering material e.g. cellulose acetate, cellulose acetate fibres or filaments
- the filaments (or fibres) are bonded at their points of contact with a bonding constituent, e.g. a plasticiser (e.g. a plasticiser which has been activated or cured to bond the filaments at their points of contact).
- the self-sustaining longitudinally extending cylindrical core may be, for example, a cylindrical rod of circular cross section.
- the self-sustaining longitudinally extending cylindrical core may be of other shape, for example the self-sustaining longitudinally extending cylindrical core may be of annular cross section such that the self- sustaining longitudinally extending cylindrical core is a longitudinally extending hollow tube comprising (e.g. formed from) fibres or filaments of tobacco smoke filtering material bonded at their points of contact.
- the individual (e.g. identical or substantially identical) filters and/or filter elements may further comprise one or more continuous components extending substantially longitudinally (e.g. longitudinally) of the cylindrical core.
- the (or a, or each) continuous component may be a thread or yarn or tape or continuous extruded element, for example a cotton thread, a cellulose acetate yarn, or a continuous extruded element of e.g.
- Cigarette filters which include a thread or tape element, typically longitudinally aligned therein, are well known in the prior art. They are often referred to as "Thread Filters”. Thread Filters were originally proposed in US 4281671 , in which a cotton sewing thread was the preferred element. US 4281671 also disclosed how the thread could be coloured, e.g. with different colours denoting different flavours. US 4281671 discloses Thread Filters which require a wrapper around the tobacco smoke filtering material (and thread); it does not disclose filters or filter elements which include a thread but which are self sustaining (i.e. stable, rigid and self-supporting without requirement for a further wrapper).
- the (or a, or each) continuous component extending longitudinally of the cylindrical core may be coloured or tinted, e.g. using appropriate dyes or pigments, preferably those with regulatory approval for use in food contact applications.
- the (or a, or each) continuous component may be of a contrasting colour to the tobacco smoke filtering material.
- the (or a, or each) continuous component further comprises a dye or pigment (e.g a dye or pigment which has regulatory approval for use in food contact applications).
- the dye or pigment may preferably be any colour which contrasts with the (e.g. white) tobacco smoke filtering material, for example green, blue, red, orange etc. If two or more continuous components extending substantially longitudinally (e.g.
- the first continuous component may be of the same colour, or a different colour, to the second continuous component.
- coloured component(s) e.g. coloured cotton thread or threads
- the common wrapper may be coloured or tinted, e.g. using appropriate dyes or pigments, preferably those with regulatory approval for use in food contact applications.
- the common wrapper may be of a contrasting colour to the tobacco smoke filtering material of the filters/filter elements.
- the filtering material of the filters/filter elements may be coloured or tinted, e.g. using appropriate dyes or pigments, preferably those with regulatory approval for use in food contact applications.
- the filtering material of the filters/filter elements may be of a contrasting colour to the common wrapper.
- the continuous component may bear a smoke modifying agent such as a flavouring agent.
- the flavouring agent may be any flavouring agent known for use in tobacco smoke filters or filter elements.
- the flavouring agent may be menthol, spearmint, peppermint, nutmeg, cinnamon, clove, lemon, chocolate, peach, strawberry, vanilla etc.
- the agent may contain nicotine or a salt or derivative thereof.
- the flavouring agent is menthol.
- the individual (e.g. identical or substantially identical) filters or filter elements may include an additive (e.g. an adsorbent).
- the additive may be a particulate additive.
- the particulate additive may any particulate additive suitable for use in a tobacco smoke filter - e.g.
- the particulate additive may be a mixture of two, or more, materials.
- the additive may include a flavourant - e.g. menthol - e.g. the additive may be sepiolite granules to which menthol has been applied.
- the individual (e.g. identical or substantially identical) filters or filters element may comprise a longitudinally extending core of tobacco smoke filtering material and an additive (e.g. carbon) with at least one end free of additive (to present a clean end to the smoker).
- the individual filters or filters element may be 'monocarbon' filters or filter elements - i.e. a filters/elements including a single longitudinally extending core of filtering material and additive (e.g. carbon) that has at least one end free of additive and e.g. which can be manufactured in a one-pass process (e.g. the 'Active Patch' filter, as disclosed in, for example, GB 2261 152, and the 'Smooth Core' filter, as disclosed in, for example, WO 2006/059134).
- the individual (e.g. identical or substantially identical) filters may comprise: a downstream (e.g. longitudinally extending, e.g. substantially cylindrical) core of tobacco smoke filtering material; an upstream (e.g.
- the filter may include an additive in the cavity such that the individual filters are triple granular filters.
- the tobacco smoke filter or filter element may be of circumference 14 to 28 mm, for example 16 to 26 mm, for example 16 to 19 mm (e.g. 17.5mm) or 24 to 25 mm.
- a tobacco smoke filter of the invention may be of length 10 to 40 mm, e.g. 1 1 to 25 mm, e.g. 12 to 16 mm, e.g. 14mm.
- a tobacco smoke filter element of the invention may be of length 5 to 30mm, e.g. 6 to 20mm, e.g. 8 to 15 mm, e.g. 10 to 12 mm.
- Filters and filter elements from product rods may be used generally as (or in) a filter tip for use with a individually rolled cigarette (e.g. a hand rolled cigarette) or a Roll Your Own or Make-Your-Own product.
- a filter tip for use with a individually rolled cigarette (e.g. a hand rolled cigarette) or a Roll Your Own or Make-Your-Own product.
- a method of producing a product rod comprising a plurality (e.g 2 or more, e.g. 4 to 6) of individual (e.g. identical or substantially identical) tobacco smoke filters or filter elements abutted end to end, and a wrapper engaged around the plurality of filters or filter elements, wherein the wrapper includes a or at least one line (e.g. a line of weakness) formed in but not through the wrapper (e.g. a line scored into or impressed into (but not through) the wrapper); the method comprising:
- each dual filter rod comprising two (e.g. identical or substantially identical) filters/elements joined end to end, wherein the filters/filter elements and filter rods are abutted end to end [to thereby form a continuous wrapped rod comprising pluralities (groups) of abutted filters or filter elements arranged between (and abutted to) dual filter rods];
- the wrapper may be a paper (e.g. a plugwrap) or other sheet material.
- the paper may be a paper having basis weight of 20-140gsm, preferably 20-to 80gsm, more preferably 50 to 70gsm, for example 60gsm.
- the paper may be air permeable, or impermeable.
- the wrapper may be a cellulosic film or a cellulosic based film.
- the wrapper may be biodegradable.
- the wrapper has the 'Ready Biodegradability' level of biodegradability as measured according to OECD 301 B 'Ready Biodegradability' method (modified Sturm test), which is well known in the art.
- the or each line e.g.
- the line of weakness may be substantially in register with (e.g. in register with, or within 3mm of) the or each junction between abutted filters or filter elements.
- the line e.g. the line of weakness
- the line may extend from one end of the product rod to the other end and define a helix about the periphery (outer surface) of the product rod.
- the or each line (e.g. the line of weakness) formed (impressed, scored) in but not through the wrapper may be made by any means known in the art, e.g. knife, folding or other mechanical means.
- the line formed (impressed, scored) in but not through the wrapper is visible to the naked eye (e.g sufficiently large that the consumer can see the line on the outside of the product rod, enabling him or her to clearly identify the point at which the rod should be snapped).
- the line formed (impressed, scored) in but not through the wrapper may be 0.01 to 0.5 mm wide, preferably 0.01 to 0.1 mm wide.
- the product may include a further printed line (e.g. of contrasting colour to the (common) wrapper) on or in the vicinity of the line which is formed in (scored) but not through the wrapper.
- a printed line may give an additional visual cue as to where the product should be bent or snapped to release a filter.
- the or each line (e.g. a line of weakness) formed (e.g. scored) in but not through the wrapper may be a continuous line or a discontinuous line.
- a continuous line is preferred.
- the line is a continuous scored line (although the line may be a discontinuous scored line).
- a method of producing a product rod comprising a plurality (e.g 2 or more, e.g. 4 to 6) of individual (e.g. identical or substantially identical) tobacco smoke filters or filter elements abutted end to end, and a wrapper engaged around the plurality of filters or filter elements, wherein the wrapper includes a or at least one line (e.g. a line of weakness) formed in but not through the wrapper (e.g. a line scored into or impressed into (but not through) the wrapper); the method comprising:
- a wrapper which includes a or at least one line (e.g. a line of weakness) formed in but not through the wrapper (e.g. a line scored into or impressed into (but not through) the wrapper) to a longitudinally advancing flow comprising pluralities (groups) of individual (e.g. identical or substantially identical) filters or filter elements arranged between (e.g. pre-formed) dual filter rods, each dual filter rod comprising two (e.g.
- filters/elements joined end to end, wherein the filters/filter elements and filter rods are abutted end to end [to thereby form a continuous wrapped rod comprising pluralities (groups) of abutted filters or filter elements arranged between (and abutted to) dual filter rods];
- the wrapper may be a paper (e.g. a plugwrap) or other sheet material.
- the paper may be a paper having basis weight of 20-140gsm, preferably 20-to 80gsm, more preferably 50 to 70gsm, for example 60gsm.
- the paper may be air permeable, or impermeable.
- the wrapper may be a cellulosic film or a cellulosic based film.
- the wrapper may be biodegradable.
- the wrapper has the 'Ready Biodegradability' level of biodegradability as measured according to OECD 301 B 'Ready Biodegradability' method (modified Sturm test), which is well known in the art.
- the lines (e.g. the lines of weakness) formed in but not through the wrapper may be preformed (e.g. by scoring or impressing/embossing the wrapper) in the wrapper such that there is a line substantially in register with (e.g. in register with, or within 3mm of) the or each junction between abutted filters/filter elements/dual filter rods [e.g. to form a line substantially in register with (e.g. in register with, or within 3mm of) the or each junction between abutted filters or filter elements in the final product rod].
- the lines (e.g. the lines of weakness) formed in but not through the wrapper may be preformed (e.g.
- the method may include a step of substantially aligning/registering the lateral lines (e.g. the lines of weakness) formed in but not through the wrapper with the junctions between abutted filters/filter elements (e.g. prior to or during wrapping).
- the method includes a step of generating - e.g. with a knife - (lateral) lines (e.g. the lines of weakness) formed in but not through the wrapper across the width of the wrapper prior to, preferably immediately prior to, application of the wrapper.
- the lines (e.g. the lines of weakness) formed (impressed, scored) in but not through the wrapper may be made by any means known in the art, e.g. knife, folding or other mechanical means.
- the lines formed (impressed, scored) in but not through the wrapper are visible to the naked eye (e.g sufficiently large that the consumer can see the line on the outside of the product rod, enabling him or her to clearly identify the point at which the rod should be snapped).
- the line formed (impressed, scored) in but not through the wrapper may be 0.01 to 0.5 mm wide, preferably 0.01 to 0.1 mm wide.
- the product may include a further printed line (e.g. of contrasting colour to the (common) wrapper) on or in the vicinity of the line which is formed in (scored) but not through the wrapper.
- a further printed line e.g. of contrasting colour to the (common) wrapper
- Such a printed line may give an additional visual cue as to where the product should be bent or snapped to release a filter.
- the or each line (e.g. a line of weakness) formed (e.g. scored) in but not through the wrapper may be a continuous line or a discontinuous line.
- a continuous line is preferred.
- the line is a continuous scored line (although the line may be a discontinuous scored line).
- the lines (e.g. the lines of weakness) formed in but not through the wrapper may be preformed (e.g. by scoring or impressing/embossing the wrapper) in the wrapper such that it (the line) extends from one end of the product rod to the other end and defines a helix about the periphery of the product rod.
- the wrapper may be a cellulosic film or a cellulosic based film.
- the wrapper may be biodegradable.
- the wrapper has the 'Ready Biodegradability' level of biodegradability as measured according to OECD 301 B 'Ready Biodegradability' method (modified Sturm test), which is well known in the art.
- the wrapper is a paper (e.g. plugwrap).
- the (e.g. individual e.g. pre-formed) filters and/or (e.g. individual e.g. pre-formed) filter elements in the flow (of filters or filter elements) are preferably aligned such that the longitudinally axes of their cylindrical cores are oriented along the longitudinal direction of the flow.
- FIGURE 1 schematically illustrates a product rod of filters according to an embodiment of the invention
- FIGURE 2 is a different view of the product rod of filters of Figure 1
- FIGURE 3 schematically illustrates a method and apparatus which may be used to manufacture the product of e.g. Figures 1 and 2
- FIGURE 4 illustrates a product rod of filters according to a further embodiment of the invention.
- Figures 1 and 2 show a NWA product rod 1 according to one embodiment of the invention.
- the product rod 1 comprises six individual tobacco smoke filters 3 each of around 17.5 mm circumference and length 14mm abutted end to end.
- the individual tobacco smoke filters 3 are identical with each other.
- Each filter 3 includes a self-sustaining substantially cylindrical core formed from a plurality of longitudinally extending substantially continuous filaments of crimped cellulose acetate tow which are bonded at their points of contact (i.e. each filter 3 is a NWA filter).
- the product rod 1 also includes a wrapper 5 comprising paper of basis weight 60 gsm which is engaged around the filters 3 thereby forming a wrapped cylinder of six filter elements of length 84mm.
- the wrapper includes five continuous lines 7, each line being formed in but not through the wrapper; in this example the lines have been scored into (but not through) the wrapper using a knife.
- Each line 7 is approximately 0.1 mm wide, and is visible to the naked eye.
- Each line 7 is in register with a junction between two abutted filters 3 (in other words, in register with each region where adjacent filters or filter elements abut each other).
- the smoker takes product rod 1 and pulls or bends the rod at the join closest to one end of the product rod (indicated by the line 7 closest to the end) to snap off an individual filter [the rod 1 snaps along the line (of weakness) 7]; the filter is then used when rolling a RYO cigarette.
- the lines 7 are sufficiently wide (i.e. in the longitudinal direction of the rod), and extends around the rod, so the consumer can see the lines 7 on the outside of the finished rod 3, enabling him to clearly identify the point at which the rod should be snapped.
- the scored lines 7 formed in but not through the wrapper enable a clean break between adjoining tips to be achieved - a jagged break would be unsightly and unacceptable to the consumer.
- the section of the outer wrapper 5 around the individual filter is retained and forms part of the filter to be used, rather than becoming redundant (and discarded) in the case of conventional Pop-a-Tips.
- Figure 3 shows a method and apparatus according to a further embodiment of the invention which may be used to manufacture the product of Figures 1 and 2.
- a flow of pre-formed filters 103 and pre-formed dual filter rods 103a is longitudinally advanced in the direction of arrow 104 into a garniture unit 106.
- the pre-formed (identical) filters 103 are each of around 17.5 mm circumference and length 14 mm.
- Each filter 103 includes a self-sustaining substantially cylindrical core formed from a plurality of longitudinally extending substantially continuous filaments of crimped cellulose acetate tow which are bonded at their points of contact.
- the pre-formed dual filter rods 103a are each of around 17.5 mm circumference and length 28 mm.
- Each rod 103a includes a self-sustaining substantially cylindrical core formed from a plurality of longitudinally extending substantially continuous filaments of crimped cellulose acetate tow which are bonded at their points of contact.
- the filters 103 are NWA filters and may, as well as dual rods 103a, be manufactured by a process similar to that described in UK Patent No.
- the belt and tow therewithin are then moved through a cooling station where cool air or other fluid is passed through the belt into contact with the tow to deactivate the plasticizer, if necessary, and dry the tow by removal of condensed steam, whereby the tow is made rigid to form a continuous self sustaining and stable longitudinally extending rod.
- the continuous self sustaining and stable longitudinally extending rod is cut into base rods of filters for subsequent use also by methods well known in the art.
- Pop-a-Tip manufacture takes place on a dual rod filter making machine. These machines are well known in the art and normally used for combining two different types of base rod, which are held in two different hoppers on the machine.
- the two hoppers are filled with the same base rod type and these base rods are cut down (to provide the required tip length), aligned in an end-to-end relationship, wrapped in transparent film and cut to the final required Pop-a-Tip length.
- the two hoppers of the dual rod filter making machine (not shown) are also filled with base rods of filters 103 manufactured as set out above.
- One hopper is used to cut down the base rods to individual filters 103 of the required tip length (14mm) and the other hopper is used to cut down the base rods to dual filter rods 103a of the required tip length (28mm) and the dual rod machine is then set to arrange and align the filters 103 and dual filter rods 103a in an end-to-end relationship such that each dual filter rod 103 is separated form the next rod 103a by four individual filters 103 to provide the flow of pre-formed filters 103 and multiple (dual) filter rods 103a.
- the filters 103 are aligned and abutted end to end (i.e. there are no spaces between individual filters 103 or filters 103 and filter rods 103a) prior to longitudinal advancement in the direction of arrow 104 into the garniture unit 106.
- the garniture unit 106 includes a compression shoe 108 through which the aligned and abutted filters 103 and dual filter rods 103a are passed prior to wrapping in the garniture. Compression shoes are known in the art for control of the final circumference of the finished rod.
- a wrapper 105 of paper of basis weight 60 gsm (which has been prescored, see below) is applied to the continuously advancing flow of filters or filter elements in the garniture 106 in the conventional manner, to thereby form a continuous wrapped rod 1 1 1 comprising groups of four individual filters 103 separated by dual filter rods 103a.
- the continuous wrapped rod 1 1 1 is then cut in register with a position half way along each dual filter rod 103a (see arrow 222) by methods known in the art to provide intermediate product rods of around 17.5mm circumference and 84mm length, each containing six individual, identical, 14 mm long filters 103 in a common paper wrapper, the wrapper including lines formed in but not through the wrapper, each line being substantially in register with (e.g. in register with, or within 3mm of) a junction between abutted filters 103.
- the lines formed in but not through the wrapper 105 are preformed, by scoring lines in the wrapper 105.
- the lines are scored across the width of the wrapper with a knife or similar, and each line is separated from the adjacent line by a distance corresponding to the length of a single filter 103.
- the apparatus is configured to substantially aligning or substantially registering the lateral lines formed in but not through the wrapper 105 with the junctions between abutted filters 103 (e.g. prior to and/or during wrapping), so that each line is in register with, or within 3mm of, a junction between abutted filters in the final product rod.
- the resulting product rod is a product as shown in Figures 1 and 2.
- FIG. 4 shows a NWA product rod 51 according to another embodiment of the invention.
- the product rod 51 comprises six individual (identical) tobacco smoke filters 53 each of around 17.5 mm circumference and length 14mm abutted end to end.
- Each filter 53 includes a self-sustaining substantially cylindrical core formed from a plurality of longitudinally extending substantially continuous filaments of crimped cellulose acetate tow which are bonded at their points of contact (i.e. each filter 53 is a NWA filter).
- the product 51 also includes a wrapper 55 comprising paper of basis weight 60 gsm which is engaged around the filters 53 thereby forming a wrapped cylinder of six filter elements of length 84mm.
- the wrapper includes a line 57 formed in but not through the wrapper (e.g.
- a line 57 scored into but not through the wrapper the line 57 extending from one end of the product rod 51 to the other (end) and defining a helix (spiral) about the periphery of the product rod.
- the line is of width 0.1 mm.
- the product rod 51 may be made by the methods described above. It will be appreciated that if the wrapper is pre-scored (i.e. scored before application to the filters/elements of the product rod), the line will have to be carefully located so it forms a continuous helix after the wrapper is wrapped around the filters/elements.
- the consumer peels back a strip of the wrapper along the line 57 (which is a line of weakness) to allow individual filter tips to be sequentially released for use; the remaining portion of the wrapper holds the remaining filters in place. It will be appreciated that in this case the wrapper is discarded, rather than remaining part of the filter.
- the pitch of the helix defined by the line 57 (that is the distance along the helical axis and also along the product rod that results in one full turn of the helix) may be 14mm, the length of a single individual filter or filter element.
- peeling back a single turn of the helix of the wrapper (along the line) releases a single filter/filter element.
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB1313845.8A GB201313845D0 (en) | 2013-08-02 | 2013-08-02 | Tobacco filter and method of production |
PCT/EP2014/066637 WO2015014999A1 (en) | 2013-08-02 | 2014-08-01 | Tobacco smoke filter and method of production |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3027069A1 true EP3027069A1 (en) | 2016-06-08 |
EP3027069B1 EP3027069B1 (en) | 2019-05-08 |
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ID=49224048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14752576.0A Active EP3027069B1 (en) | 2013-08-02 | 2014-08-01 | Tobacco smoke filter and method of production |
Country Status (4)
Country | Link |
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EP (1) | EP3027069B1 (en) |
AU (1) | AU2014298369B2 (en) |
GB (1) | GB201313845D0 (en) |
WO (1) | WO2015014999A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102588169B1 (en) | 2016-12-29 | 2023-10-12 | 필립모리스 프로덕츠 에스.에이. | Aerosol-generating article having a water-dispersible filter component |
CN109315828A (en) * | 2018-11-14 | 2019-02-12 | 郑州博讯电气技术有限公司 | A kind of hollow filter stick process equipment |
FR3096874B1 (en) | 2019-06-07 | 2022-06-24 | Republic Tech Na Llc | SET OF STICK-SHAPED CARDBOARD FILTERS, PRE-FORMED FOR ITS MANUFACTURING AND PACKAGING |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2747579A (en) * | 1952-12-10 | 1956-05-29 | Milton G Gage | Filter tip cigarette |
CH362638A (en) * | 1958-08-05 | 1962-06-15 | Tabac Reunis S A Fab | Cigarette with a filter mouthpiece |
DE2909432A1 (en) * | 1979-03-07 | 1980-09-11 | Karl Friedrich Schaefer | Divisible cigarette filter tip - allows detachment in part or whole as desired |
DE3729759A1 (en) * | 1987-09-02 | 1989-03-16 | Julian Hildebrandt | Filter cigarette |
US20140196728A1 (en) * | 2011-07-07 | 2014-07-17 | Ahmad Fashihul Lisan | Tobacco smoke filter and method of production |
-
2013
- 2013-08-02 GB GBGB1313845.8A patent/GB201313845D0/en not_active Ceased
-
2014
- 2014-08-01 WO PCT/EP2014/066637 patent/WO2015014999A1/en active Application Filing
- 2014-08-01 AU AU2014298369A patent/AU2014298369B2/en active Active
- 2014-08-01 EP EP14752576.0A patent/EP3027069B1/en active Active
Non-Patent Citations (1)
Title |
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See references of WO2015014999A1 * |
Also Published As
Publication number | Publication date |
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AU2014298369B2 (en) | 2018-04-26 |
WO2015014999A1 (en) | 2015-02-05 |
GB201313845D0 (en) | 2013-09-18 |
AU2014298369A1 (en) | 2016-02-18 |
EP3027069B1 (en) | 2019-05-08 |
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