EP3861869B1 - Production method for smoking article - Google Patents

Production method for smoking article Download PDF

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Publication number
EP3861869B1
EP3861869B1 EP18936135.5A EP18936135A EP3861869B1 EP 3861869 B1 EP3861869 B1 EP 3861869B1 EP 18936135 A EP18936135 A EP 18936135A EP 3861869 B1 EP3861869 B1 EP 3861869B1
Authority
EP
European Patent Office
Prior art keywords
double
length
segment
tobacco
tobacco rod
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
EP18936135.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3861869A1 (en
EP3861869A4 (en
Inventor
Norio Yamamoto
Tetsuya Okuyama
Hiroshi Inoue
Daisuke Sato
Makoto Kishi
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.)
Japan Tobacco Inc
Original Assignee
Japan Tobacco Inc
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 Japan Tobacco Inc filed Critical Japan Tobacco Inc
Publication of EP3861869A1 publication Critical patent/EP3861869A1/en
Publication of EP3861869A4 publication Critical patent/EP3861869A4/en
Application granted granted Critical
Publication of EP3861869B1 publication Critical patent/EP3861869B1/en
Active 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
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/01—Making cigarettes for simulated smoking devices
    • 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
    • A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
    • A24C5/475—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces adapted for composite filters

Definitions

  • the present invention relates to a method of manufacturing a smoking article.
  • a smoking article such as a cigarette, that includes a tobacco rod, a cooling segment, and a filter segment has conventionally been manufactured using a plurality of tipping papers.
  • WO 2017/081144 A1 discloses a method of manufacturing a smoking article by wrapping a plurality of members in a plurality of tipping papers.
  • WO 2017/081144 A1 discloses a method of arranging, adjacent to each other, a polylactic acid filter, a hollow filter, and a tobacco rod in this order; wrapping these components in a second tipping paper; arranging a mouthpiece filter adjacent to the polylactic acid filter end of the resulting wrapped member; and wrapping these components in a first tipping paper.
  • gaps formed at joints between members cause air leakage or the like.
  • the method is characterized in that the polylactic acid filter is not completely covered with the second tipping paper, thereby providing an uncovered portion in the end of the polylactic acid filter.
  • an object of the present invention is to provide a method of efficiently manufacturing a smoking article.
  • the inventors resolved the above-mentioned problems by performing once a step of joining with a tipping paper. In other words, the above-mentioned problems are resolved by the present invention below.
  • the present invention relates to a method of manufacturing a smoking article that includes a tobacco rod, a cooling segment, and a filter segment.
  • a smoking article that includes a tobacco rod, a cooling segment, and a filter segment.
  • the expression "X to Y" includes the lower and the upper limits of X and Y.
  • a smoking article of the present invention includes a tobacco rod, a cooling segment, and a filter segment.
  • Fig. 1 (i) illustrates an embodiment of the smoking article of the present invention.
  • 100 is a smoking article
  • 1 is a tobacco rod
  • 3 is a cooling segment
  • 5 is a filter segment
  • 7 is a tipping paper.
  • a tobacco rod is an almost cylindrical member for generating smoking flavor components contained in tobacco raw materials and includes tobacco filler and a paper wrapper wrapped therearound.
  • the tobacco filler is not limited, and tobacco shreds or tobacco sheets, for example, may be used therefor.
  • tobacco shreds prepared by cutting dry tobacco leaves into a width of 0.8 to 1.2 mm may be packed inside a paper wrapper.
  • those prepared by uniformly pulverizing dry tobacco leaves into an average particle size of about 20 to 200 ⁇ m, forming into sheets, and cutting the sheets into a width of 0.8 to 1.2 mm may be packed inside a paper wrapper.
  • such sheets may be gathered, folded, or spirally rolled without cutting and packed inside a paper wrapper.
  • such sheets may be cut into strips and packed inside a paper wrapper concentrically or with the longitudinal direction of the strips aligned parallel to the longitudinal direction of a tobacco rod.
  • the tobacco rod 1 may generate an aerosol upon heating.
  • an aerosol source such as glycerol, propylene glycol, 1,3-butanediol, or other polyols
  • the amount of an aerosol source to be added is preferably 5 to 50 weight% and more preferably 10 to 30 weight% based on the dry weight of the tobacco filler.
  • the tobacco rod may contain a flavor, such as menthol.
  • the length of the tobacco rod 1 is not limited but is preferably 15 to 25 mm.
  • the diameter is also not limited but is preferably 6.5 to 7.5 mm.
  • the tobacco rod when a neighboring member has stiffness higher than the tobacco rod, the tobacco rod preferably has a diameter larger than the neighboring member. As a result, deformation of the tobacco rod can be suppressed.
  • the tobacco rod has a diameter preferably 0.5 to 2.5% larger and more preferably 1.0 to 2.0% larger than the neighboring member.
  • the tobacco rod preferably has a diameter about 0.05 to 0.15 mm larger than the neighboring member.
  • Exemplary neighboring members include a cooling segment and a filter segment.
  • Stiffness in the present invention means the resistance of a member to deformation as disclosed in paragraphs [0010] to [0014] ol JP 2016523565 A (see WO 2015007400 A as translation). Stiffness can be obtained from a change in diameter before and after applying a load F on the side surface of a tobacco rod.
  • Ds the diameter of a tobacco rod before applying a load F
  • Dd the diameter after applying the load
  • the stiffness is defined by the following formula. The same applies to other members.
  • Stiffness % Dd / Ds ⁇ 100
  • a cooling segment is a member for cooling an aerosol and smoking flavor components generated in the tobacco rod 1.
  • the cooling segment 3 may be a hollow paper tube.
  • the paper tube is preferably made of cardboard having stiffness higher than paper wrappers and a tipping paper.
  • the paper tube may be provided with holes (ventilation holes).
  • a plurality of holes are preferably formed along the circumference of the paper tube. In view of efficient operations, such holes are preferably formed by laser processing of a finished smoking article.
  • gathered sheets may be packed inside the cooling segment 3.
  • the dimensions of the cooling segment 3 are not limited, the length is preferably 15 to 25 mm and the diameter is preferably 5.5 to 7.5 mm.
  • the cooling segment 3 when a member neighboring the cooling segment 3 has stiffness lower than the cooling segment 3, the cooling segment 3 has a diameter preferably 0.5 to 2.5% smaller and preferably 1.0 to 2.0% smaller than the neighboring member.
  • the cooling segment 3 includes a paper tube made of cardboard, the segment generally has stiffness higher than a tobacco rod.
  • a filter segment is a member including a filter.
  • a publicly known filter member such as an acetate filter or a paper filter
  • a paper filter is a paper-filled filter prepared by creasing paper through processing with a crepe roller or the like and by rolling the paper using a plug wrapper.
  • An acetate filter is a filter filled with cellulose acetate fibers.
  • the filter segment 5 preferably includes a filter 51 and a center hole filter 53.
  • the center hole filter may be a space provided in the central part of an acetate filter, for example.
  • the length of the filter segment 5 is not limited but is preferably 10 to 20 mm.
  • both a center hole filter and an acetate filter are arranged as a filter segment, the order is not limited. Moreover, individual members may be wrapped in each filter inner wrapper and joined with a filter outer wrapper.
  • the diameter of the filter segment is not limited but is preferably almost the same as those of other segments excluding a tobacco rod. As a result, tearing and creasing of a tipping paper can be suppressed.
  • tipping paper refers to a paper used for joining two or more of a tobacco rod, a cooling segment, and a filter segment.
  • paper wrapper refers to a paper for wrapping individual members that constitute a tobacco rod, a cooling segment, or a filter segment.
  • a filter segment includes a center hole filter and an acetate filter as in the foregoing, a paper for wrapping the center hole filter and a paper for wrapping the acetate filter are each paper wrapper.
  • Exemplary base paper for a tipping paper and paper wrappers includes, but is not limited to, paper using cellulose fibers.
  • cellulose fibers may be either derived from plants or chemically synthesized, or may be a mixture thereof.
  • Exemplary plant-derived fibers include pulp of flax fibers, wood fibers, or seed fibers, for example. Such pulp may be colored unbleached pulp.
  • bleached pulp which is prepared using a bleaching agent, such as an oxidant or a reductant.
  • a citric acid alkali metal salt or the like is used as a common burning chemical (combustion aid, for example) that can affect the spontaneous combustion rate of the paper wrapper.
  • a heating-type smoking article but not a combustion-type is preferable. In this case, since the combustion of a paper wrapper is unnecessary, the paper wrapper need not contain a burning chemical.
  • the lower limit of the basis weight of a paper wrapper is preferably 30 g/m 2 or more, more preferably 35 g/m 2 or more, and further preferably 40 g/m 2 or more.
  • the upper limit is preferably 65 g/m 2 or less and more preferably 50 g/m 2 or less.
  • the lower limit of the basis weight of a tipping paper is preferably 20 g/m 2 or more, more preferably 25 g/m 2 or more, and further preferably 30 g/m 2 or more.
  • the upper limit is preferably 50 g/m 2 or less, more preferably 45 g/m 2 or less, and further preferably 40 g/m 2 or less.
  • the basis weight can be measured by the method specified in JIS P 8124.
  • Fig. 2 The outline of the present process is illustrated in Fig. 2 .
  • "w" indicates "double-length.”
  • 5w represents a double-length filter segment.
  • the manufacturing method of the present invention can be performed using any appropriate apparatus but is preferably performed using, for example, an apparatus that includes a plurality of drums and that feeds each member from above as illustrated in Fig. 5 .
  • One drum preferably has one function rather than a plurality of functions since defect generation can be suppressed in high-speed manufacture.
  • each step will be described using such an apparatus as an example.
  • one or a plurality of drums may have a feeding, receiving, transferring, or separating function.
  • This step prepares a double-length tobacco segment 10w containing a double-length tobacco rod 1w' that has a double length of the tobacco rod 1 and that is separable in the central part in the longitudinal direction and two cooling segments 3 in contact with either end of the double-length tobacco rod.
  • This step may be performed by preparing a double-length tobacco segment containing a double-length tobacco rod 1w, which has a double length of the tobacco rod, and two cooling segments 3 in contact with either end of the double-length tobacco rod and by cutting the double-length tobacco segment in the central part in the longitudinal direction.
  • this step can be performed in the first unit 81 to the third unit 83 of Fig.
  • 81f is a feeder for cooling segments 3
  • 81p is a picking-up drum
  • 81s is a separating drum.
  • a pair of cooling segments 3 fed from the feeder 81f are passed to a holding section provided on the circumferential surface of the picking-up drum 81p. Subsequently, the pair of the cooling segments 3 are passed to the separating drum 81s and separated in a holding section while being transferred.
  • 82f is a feeder for a double-length tobacco rod 1w
  • 82t is a transfer drum
  • 82p is a picking-up drum
  • 82a is a receiving drum.
  • the pair of the cooling segments 3 placed via a gap are passed in this state to the transfer drum 82t.
  • a double-length tobacco rod 1w fed from the feeder 82f is passed to a holding section provided on the circumferential surface of the picking-up drum 82p and then passed to the receiving drum 82a.
  • the double-length tobacco rod 1w is placed in the gap between the pair of the separately placed cooling segments 3 such that both ends of the double-length tobacco rod 1w come into contact with the end of either of the cooling segments 3.
  • 83c is a cutter drum
  • 83c' is a cutter
  • 83s is a separating drum.
  • a segment including the pair of the cooling segments 3 at the ends of the double-length tobacco rod 1w is passed to the cutter drum 83c and cut with the cutter 83c' in the central part in the longitudinal direction of the double-length tobacco rod 1w.
  • the double-length tobacco rod 1w or a separable double-length tobacco rod 1w' may be wrapped in a wrapper.
  • a wrapper is a sheet-like member, and the examples include paper and polymer sheets. Exemplary paper includes publicly known paper, such as tipping paper, and exemplary polymer sheets include biodegradable polymer sheets, such as a polylactic acid sheet.
  • a smoking article decorated in the upstream portion can be provided (see Fig. 3 (2)).
  • a flavor may be added to the double-length tobacco rod 1w or the separable double-length tobacco rod 1 w'.
  • a smoking article containing a flavor in the upstream portion can be provided (see Fig. 3 (1)).
  • a flavor is not limited, and a publicly known flavor, such as menthol, may be used.
  • the amount to be added is also not limited and may be set to a publicly known amount.
  • F is a portion added with a flavor
  • F' is a paper containing a flavor. As just described, this step can functionalize the upstream portion of a smoking article to be manufactured.
  • the double-length tobacco segment 1w is separated in the central part to prepare a pair of separate tobacco segments 10 and the tobacco segments are inverted, thereby placing the tobacco segments via a gap to position the tobacco rod 1 sections outside, align the longitudinal axes of the tobacco segments, and allow the cooling segments 3 to face each other.
  • This step can be performed in the fourth unit 84 of Fig. 5 where 84i and 84i' are inverting drums. With reference to Fig. 6 , the mechanism of inversion will be described.
  • a guide G on the inverting drum 84i is a holding section for the tobacco segment 10 and is provided in a rotatable manner around one corner on the drum.
  • the tobacco segment 10 held in the guide G illustrated with a dotted line is moved to the solid-line position through the rotation of the guide G as the inverting drum 84i rotates. Subsequently, the tobacco segment 10 is passed to a guide G' illustrated with a dotted line on the inverting drum 84i'.
  • the guide G' slides on the inverting drum 84i' to the solid-line position where the distance between the pair of the tobacco segments 10 is a desirable value. The pair of the tobacco segments 10 are thus inverted.
  • a double-length filter segment 5w which has a double length of the filter segment 5 is prepared and placed in the gap such that both ends of the double-length filter segment come into contact with the end on the cooling segment 3 side of either of the tobacco segments 10, thereby preparing a composite segment.
  • This step can be performed in the fifth unit 85 of Fig. 5 .
  • 85f is a feeder for a double-length filter segment 5w
  • 85p is a picking-up drum
  • 85a is a receiving drum.
  • the segments prepared in the preceding step are passed to the receiving drum 85a.
  • a double-length filter segment 5w fed from the feeder 85f is passed to a holding section provided on the circumferential surface of the picking-up drum 85p and then passed to the receiving drum 85a.
  • the double-length filter segment 5w is placed in the gap between the pair of the separately placed tobacco segments 10 such that both ends of the double-length filter segment 5w come into contact with the end of either of the tobacco segments 10, thereby forming a composite segment 90.
  • the composite segment is integrated by wrapping in one tipping paper 7 to obtain a double-length smoking article 100w.
  • the tipping paper any paper common in the field concerned can be used.
  • the tipping paper may be coated with a publicly known adhesive.
  • the composite segment in the separable state is integrated into the inseparable state.
  • the tipping paper 7 need not cover the entire range of the tobacco rods 1.
  • the region covered with the tipping paper 7 is preferably a region extending from the bonding face between the tobacco rod 1 and the cooling segment 3 to the position of 0.2X to 0.4X in the longitudinal direction of the tobacco rod 1.
  • thermal conductivity can be enhanced in the case of heating the tobacco rod 1 from the outside.
  • This step can be performed in the sixth unit 86 of Fig. 5 .
  • 86f is a feeder for a tipping paper 7
  • 86t is a transfer drum
  • 86r is a rolling drum
  • 86h is a rolling hand.
  • a rolling drum is a drum having a holding section that is for holding a member on the circumferential surface and that enables a segment or another member to rotate on its central axis in the longitudinal direction.
  • a rolling hand is a means that is disposed facing the circumferential surface of the rolling drum and that is for forming a gap of a constant distance from the circumferential surface.
  • the composite segment 90 is passed to the transfer drum 86t and then passed to the rolling drum 86r.
  • the precursor 92 includes the tipping paper 7 attached, like a flag, to the composite segment 90. In other words, part of the tipping paper 7 is attached to the circumferential surface of the composite segment 90 while leaving the remainder free.
  • the precursor 92 is fixed to the holding section on the circumferential surface of the rolling drum 86r through suction or the like and transferred to the gap formed between the rolling drum 86r and the rolling hand 86h. While passing through this gap, the entire circumferential surface of the precursor 92 is wrapped in the tipping paper 7 to form a double-length smoking article 100w (see Fig. 7 ).
  • the tobacco rod 1 preferably has a diameter larger than the neighboring cooling segment 3 in the present invention.
  • the surfaces of the rolling drum 86r and the rolling hand 86h are flat, excessive contact arises between these surfaces and the tobacco rod 1 ( Fig. 8 (1)). This results in a problem of falling fillings from the leading end under the impact on the tobacco rod 1.
  • the difference in circumference causes twisting, thereby developing defects, such as creases, in a product.
  • a depression may be provided on the rolling drum 86r or both the rolling drum and the rolling hand.
  • the depth of the depression (T in Figs. 8 (2) and (3) ) is appropriately adjusted and is preferably 0.05 to 0.15 mm.
  • Such a depression need not be provided on the entire surface that faces the tobacco rod 1.
  • a depression may be provided on part of the surface that faces the tobacco rod 1.
  • a depression is preferably absent near the boundary between these two members.
  • the double-length smoking article 100w is cut in the central part in the longitudinal direction.
  • a pair of smoking articles 100 can be manufactured.
  • This step may further include aligning two smoking articles 100 in the same direction by inverting either of the smoking articles 100.
  • This step can be performed in the seventh unit 87 of Fig. 5 .
  • 87c is a cutter drum
  • 87c' is a cutter
  • 87a is a receiving drum.
  • the double-length smoking article 100w is passed to the cutter drum 87c and cut in the central part in the longitudinal direction to form smoking articles 100.
  • the smoking articles 100 are passed to the receiving drum 87a, separated, and isolated as products.
  • the present invention even when a member having a smaller diameter than a tobacco rod is placed neighboring the tobacco rod, it is possible to avoid failure, such as jams during rolling, and consequently to perform satisfactory rolling. Moreover, the present invention is also advantageous in terms of costs since one tipping paper is used. Further, conventional methods that use a plurality of tipping papers need a measure of providing steps on drums, for example, since steps are formed on smoking articles. In contrast, the manufacturing method of the present invention does not need such a measure.
  • a separable double-length tobacco segment was obtained by placing each paper tube at both ends of a double-length tobacco rod that is separable in the central part in the longitudinal direction (step A).
  • the separable double-length tobacco segment was separated in the central part to prepare a pair of separate tobacco segments, and the tobacco segments were inverted to be placed via a gap (step B).
  • the tobacco rod sections were positioned outside and the longitudinal axes of the tobacco segments were aligned.
  • a double-length filter segment was placed in the gap such that both ends of the double-length filter segment come into contact with the end on the cooling segment side of either of the tobacco segments to obtain a composite segment (step C).
  • the composite segment was integrated by wrapping in one tipping paper to obtain a double-length smoking article, which has a double length of a smoking article (step D).
  • the double-length smoking article was cut in the central part in the longitudinal direction to yield two smoking articles (step E).

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
EP18936135.5A 2018-10-05 2018-10-05 Production method for smoking article Active EP3861869B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/037334 WO2020070871A1 (ja) 2018-10-05 2018-10-05 喫煙物品の製造方法

Publications (3)

Publication Number Publication Date
EP3861869A1 EP3861869A1 (en) 2021-08-11
EP3861869A4 EP3861869A4 (en) 2022-05-18
EP3861869B1 true EP3861869B1 (en) 2024-02-21

Family

ID=70055368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18936135.5A Active EP3861869B1 (en) 2018-10-05 2018-10-05 Production method for smoking article

Country Status (5)

Country Link
EP (1) EP3861869B1 (zh)
JP (1) JP7482784B2 (zh)
CN (1) CN112804890B (zh)
PL (1) PL3861869T3 (zh)
WO (1) WO2020070871A1 (zh)

Families Citing this family (2)

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CN112716031B (zh) * 2021-01-08 2022-11-18 江西中烟工业有限责任公司 一种颗粒型气溶胶生成制品及其卷接成型方法
CN114831338B (zh) * 2022-06-15 2024-04-12 南通金源新材料有限公司 一种中空三段式加热卷烟烟支及其制造方法

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Also Published As

Publication number Publication date
CN112804890A (zh) 2021-05-14
PL3861869T3 (pl) 2024-05-13
WO2020070871A1 (ja) 2020-04-09
JP7482784B2 (ja) 2024-05-14
EP3861869A1 (en) 2021-08-11
EP3861869A4 (en) 2022-05-18
JPWO2020070871A1 (ja) 2021-10-14
CN112804890B (zh) 2022-08-30

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