EP3116333B1 - Filterelement für einen rauchartikel - Google Patents
Filterelement für einen rauchartikel Download PDFInfo
- Publication number
- EP3116333B1 EP3116333B1 EP15704818.2A EP15704818A EP3116333B1 EP 3116333 B1 EP3116333 B1 EP 3116333B1 EP 15704818 A EP15704818 A EP 15704818A EP 3116333 B1 EP3116333 B1 EP 3116333B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- plug
- perforation
- filter element
- segments
- 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
Links
- 230000000391 smoking effect Effects 0.000 title claims description 29
- 239000000463 material Substances 0.000 claims description 48
- 241000208125 Nicotiana Species 0.000 claims description 24
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 24
- 238000009423 ventilation Methods 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 2
- 239000003463 adsorbent Substances 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 description 15
- 238000012384 transportation and delivery Methods 0.000 description 13
- 239000000779 smoke Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- 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
- A24D3/041—Tobacco smoke filters characterised by their shape or structure with adjustable means for modifying the degree of filtration of the filter
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/02—Cigars; Cigarettes with special covers
- A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations
-
- 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
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
- A24D3/163—Carbon
Definitions
- the present invention relates to a filter element for a smoking article.
- the present invention relates to a filter element which enables a user to vary the ratio of tobacco smoke to air inhaled by providing a mechanism by varying the pressure drop across the filter.
- Filter elements for smoking articles are, of course, well known. It is also well known to provide filter elements that have means for varying the ratio of tobacco smoke to air inhaled by a user by providing a mechanism to the user to vary the pressure drop across the filter. Examples of such configurations are shown in US4646763 , US4649944 , US4570649 or WO 2013/079645 , for example. Such configurations allow for variations of the ventilation level of the filter, therefore of the smoke intensity and tar delivery of the smoking articles, between a maximum tar delivery in a first state and a second tar delivery in a second state.
- the present invention seeks to provide a filter element which improves control of the smoke intensity by a user, enabling the user to vary the pressure drop across the filter between reduced tar delivery states whilst still ensuring that a cost effective filter element is provided.
- the present invention provides a filter element for a smoking article, the filter element comprising: at least one plug of filter material surrounded by a substantially air permeable plug wrap, wherein the plug of filter material comprises at least two segments being longitudinally aligned and rotatably mounted about a common longitudinal axis, at least one of the segments comprising at least one perforation formed in the substantially air permeable plug wrap; and a wrapping material surrounding at least one portion of the substantially air permeable plug wrap, the wrapping material comprising a first part attached to a first of the two segments of the plug of filter material and a second part attached to the second segment of the plug of filter material, and comprising at least one aperture formed therein, the first and second parts of the wrapping material and first and second segments of the plug of filter material being arranged such that the respective at least one perforation of the substantially air permeable plug wrap and the at least one aperture of the wrapping material can be superimposed upon rotation of one of the segments of the plug of filter material about the common longitudinal axis to vary the filter ventilation
- the filter element according to the present invention therefore includes a combination of aligning slots, respectively referred to as perforations and apertures, and a substantially air permeable or porous plug wrap for allowing air flow into the filter.
- aligning slots and porous plug wrap allows for a relatively small variation of air dilution, which results in an improved stability and fine tuning of the variable filter product.
- this enables the manufacture of cigarettes having variable taste strength and tar deliveries, by providing a filter element adjustable between two ventilated cigarette configurations.
- the at least one perforation may be formed in the second segment of the filter material and the at least one aperture may be formed in the second part of the wrapping material.
- each of the at least one perforation has a first length and each of the at least one aperture has a second length.
- each of the perforations have the same length, while each of the apertures also have the same length (which is different from the length of the apertures), which facilitates manufacturing of the filter element.
- At least one of the segments of the filter material comprises at least three perforations spaced equidistally from each other.
- a further aspect of the invention relates to a smoking article comprising a filter element as previously described.
- a smoking article would typically include a tobacco rod connected to an end of the filter by the wrapping material which overlaps said end of the filter element and one end of the tobacco rod.
- the second part of the wrapping material comprising the aperture surrounds a segment of the plug of filter material including the perforation and at least part of a segment of the plug of filter material free from the at least one perforation.
- the first and second parts of the wrapping material may be separated by a circumferential slit around the filter plug, while the first and second segments of the plug of filter material may be separated by a circumferential cut in a second plane perpendicular to the common longitudinal axis, and wherein the circumferential slit is located in the second plane.
- the circumferential slit in the wrapping material corresponds to a circumferential cut in the plug of filter material, both being located in the same plane.
- a filter cigarette 1 comprises a tobacco rod 2 and a filter component 3.
- the filter component 3 is configured to allow adjustment of the filter ventilation by a user to adjust the taste strength of the cigarette 1.
- the filter component 3 comprises a plug of filter material such as cellulose acetate having a plug wrap 4 extending over its outer surface.
- the plug wrap 4 is substantially air impermeable.
- the filter component 3 is divided into a mouth end filter segment 5 and a tobacco end filter segment 6, by a circumferential transverse cut 7, which is perpendicular to the longitudinal axis of the cigarette 1.
- the cut 7 is only partial throughout the diameter of the filter plug 4 so as to leave a central connecting member of filter material between the two segments 5, 6.
- This connecting member (not shown) advantageously acts as an axis of rotation for the segments 5, 6 relative to each other to allow variation of the filter ventilation as explained below.
- At least one slit also referred to as a perforation 8 is formed into the plug wrap 4 in the tobacco end filter segment 6. This perforation 8 allows air to be drawn in through the plug wrap 4 and into the core of the filter component 3.
- a suitable wrapping material such as tipping paper 9 is provided and wrapped over the plug wrap 4 and filter segments 5, 6.
- the tipping paper 9 is comprised of two bands 10, 11 separable at a pre-cut or cut line 12.
- a first band 10 of the tipping paper 9 is attached, usually by gluing, to the mouth end filter segment 5 of the cigarette 1 and extends over the cut 7 between the two filter segments 5, 6 and partially over the second filter segment 6 and the perforation 8 without being attached to the second segment 6.
- This first tipping band 10 comprises at least one transverse slot 13 which is positioned so that it can be aligned over the perforation 8 in the second filter segment 6.
- a second tipping band 11 of the tipping paper 9 is attached, usually by gluing, on the remaining part of the tobacco end segment 6 not covered by band 10 and the tobacco rod 2 to attach the filter component 3 to the tobacco rod 2.
- Figure 2 shows Figure 1 when assembled with the slot 13 of first band 10 of tipping paper 9 aligned over the perforation 8.
- Such configuration of the filter component 3 and tipping paper 9 makes the mouth end filter segment 5 capable of rotation around the longitudinal axis of the cigarette 1 relative to the tobacco end filter segment 6 connected to the tobacco rod 2. This varies the respective positions of the perforation 8 in the tobacco end filter segment 6 and the slot 13 in the first tipping band 10 as shown in Figure 3 in order to adjust the ventilation of the filter component 3, and hence the strength of the cigarette 1.
- Figure 3 shows a cross-sectional view of the filter component 3 through the location of the perforation 8 and slot 13. From this it can be seen that relative rotation of the mouth end filter segment 5 with respect to tobacco end filter segment 6 in either direction can adjust the relative positions of the slot 13 and perforation 8 to control the amount of air that can be drawn through the combination of the slot 13 and perforation 8 and into the filter component 3 when the cigarette 1 is being smoked.
- the user can rotate the mouth end filter segment 5 to vary the relative locations of the slot 13 and perforation 8 and vary the ventilation for the filter component 3 varying air mixture received by a user when the tobacco rod 2 is lit.
- airflow can only be drawn through the combination of the slot 13 and perforation 8 and into the filter component 3, since the plug wrap 4 in the known configurations is substantially air impermeable.
- Figure 4 shows a cross-sectional view of a smoking article comprising a filter element according to the present disclosure, through the location of the perforation 8 and slot 13.
- the smoking article according to the present invention is substantially similar in structure to that shown in Figures 1 to 3 , with the exception that the plug wrap provided is substantially air permeable or porous.
- plug wrap papers having porosities ranging from about 1300 CU to 24000 CU can be used in the smoking article of the present invention.
- the user can rotate the mouth end filter segment 5 to vary the relative locations of the slot 13 and perforation 8 and vary the ventilation for the filter component 3 varying air mixture received by a user when the tobacco rod 2 is lit.
- the plug wrap 40 is porous, therefore allowing at least some airflow through the filter at all times, irrespective of the alignment of the slot 13 and perforation 8. Since airflow always passes through the filter element 3, the variation of air dilution obtained by the relative positions of the slot 13 and perforation 8 is smaller than in the case of Figure 3 .
- this improves control of the user who is able to steadily vary the smoke intensity, i.e. the tar delivery of the smoking article between two ventilated states.
- the filter of the invention provides pressure drops of below 130 mmH2O and preferably below 120 mmH2O in any respective position of the slot 13 and perforation 8. This particularly reduces resistance to drawing smoke through the filter element 3 whilst a user tuned the filter to obtain high tar delivery states.
- any plurality of perforations 8 and/or slots 13 could be provided to achieve the same function of varying the ventilation level in the filter component 3, the common principle of ventilation variation remaining identical and based on alignment/misalignment of said perforations 8 and slot 13 upon rotation of the mouth end segment 5 of the filter with respect to the tobacco end segment 6.
- the perforations 8 are of equal length and can vary from 2.00 mm to 4.5 mm, for example.
- FIGs 6A and 6B shows the variation of the airflow through the filter component 3 represented in Figure 7 , using relatively small perforations 8, e.g. 2.5 mm and matching slots 13 ( Figure 6A ) and relatively large perforations 8, e.g. 4.0 mm and matching slots 13 ( Figure 6B ). Since the plug wrap 40 is porous, airflow always passes through the filter component 3, resulting in a relatively weak but permanent airflow in the case of relatively small perforations 8 and matching slots 13 ( Figure 6A ), and a relatively strong, permanent airflow in the case of relatively large perforations 8 and matching slots 13 ( Figure 6B ).
- Figure 8 is a table reproducing minimum and maximum tar deliveries obtained for five different smoking articles according to the invention, with different filter structures (dual charcoal acetate or mono-acetate filters), different plug wrap porosities and different perforations sizes.
- the tar deliveries reproduced in that table were obtained under standard ISO smoking regime, following ISO standards for testing smoking articles (ISO 3308, ISO 4387).
- filter plug-forming material that may be a material such as cellulose acetate tow in a conventional and well-known manner in the industry of cigarette filter making.
- a continuous filter rod is hereby obtained. This continuous rod is then surrounded with a porous plug wrap 40 to hold the acetate tow in shape and segmented to produce individual filter components 3.
- filter components 3 are then loaded into a conventional smoking article maker which is equipped with a processing module to assemble filter components 3 and tobacco rods 2 to form cigarettes 1.
- the filter components 3 are then cut transversally to form two rotatable interconnected segments 5, 6.
- Perforations 8 are formed in the filter components 3 by laser or blade cutting.
- the pre-perforated tipping paper 9 may be used.
- the tipping paper 9 may be perforated and cut or preferably pre-cut to define separation line 12 between bands 10, 11 of the tipping paper 9 and then supplied and wrapped around the filter component 3 to connect it with the tobacco rod 2 to form a cigarette product.
- the filter components 3 are submitted to a laser or blade cut to form simultaneously perforations 8 in the tobacco end filter segment 6 and corresponding slots 13 in the tipping paper 9.
- the mouth end filter segment 5 is then twisted to misalign perforations 8 and slots 13 of the filters and thereby set the cigarette products 1 at the lowest level of ventilation of the filter components 3.
- the finished cigarette products are then gathered to form a bundle which is then packed for sale.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Claims (11)
- Filterelement (3) für einen Rauchartikel, wobei das Filterelement (3) umfasst:Zumindest einen Stopfen aus Filtermaterial, der von einer im Wesentlichen luftdurchlässigen Stopfenhülle (40) umgeben ist, wobei der Stopfen aus Filtermaterial zumindest zwei Segmente (5, 6) umfasst, die longitudinal ausgerichtet und drehbar um eine gemeinsame Längsachse montiert sind, wobei zumindest eins der Segmente (5, 6) zumindest eine Perforation (8) umfasst, die in der im Wesentlichen luftdurchlässigen Stopfenhülle (40) gebildet ist; undein Umhüllungsmaterial (9), das zumindest einen Abschnitt der im Wesentlichen luftdurchlässigen Stopfenhülle (40) umgibt, wobei das Umhüllungsmaterial (9) einen ersten Teil (10), der an ein erstes (5) der zwei Segmente des Stopfens aus Filtermaterial angebracht ist und einen zweiten Teil (11) umfasst, der an das zweite Segment (6) des Stopfens aus Filtermaterial angebracht ist, und zumindest eine darin gebildete Öffnung (13) umfasst,wobei die ersten und zweiten Teile (10, 11) des Umhüllungsmaterials (9) und erste und zweite Segmente (5, 6) des Stopfens aus Filtermaterial derartig angeordnet sind, dass die jeweilige zumindest eine Perforation (8) der im Wesentlichen luftdurchlässigen Stopfenhülle (40) und die zumindest eine Öffnung (13) des Umhüllungsmaterials (9) nach Rotation eines der Segmente (5, 6) des Stopfens aus Filtermaterial um eine gemeinsame Längsachse überlagert werden können, um die Filterventilation zu variieren;dadurch gekennzeichnet, dass jede der zumindest einen Perforation (8) eine erste Länge aufweist und jede der zumindest einen Öffnung (13) eine von der ersten Länge verschiedene Länge aufweist.
- Filterelement (3) nach Anspruch 1, wobei die zumindest eine Perforation (8) im zweiten Segment (6) des Filtermaterials gebildet ist und die zumindest eine Öffnung (13) im zweiten Teil (11) des Umhüllungsmaterials (9) gebildet ist.
- Filterelement (3) nach einem der vorhergehenden Ansprüche, wobei sich jede der zumindest einen Perforation (8) und jede der zumindest einen Öffnung (13) in einer ersten Ebene senkrecht zur gemeinsamen Längsachse befindet.
- Filterelement nach Anspruch 3, wobei das zumindest eine der Segmente (5, 6) des Filtermaterials zumindest drei Perforationen (8) umfasst, die gleich weit voneinander entfernt beabstandet sind.
- Filterelement nach einem vorhergehenden Anspruch, das ferner zumindest einen zweiten Stopfen aus Filtermaterial umfasst, der ein absorbierendes Material, vorzugsweise Aktivkohle, umfasst.
- Filterelement nach einem vorhergehenden Anspruch, wobei die Porosität der Stopfenhülle zwischen ca. 1300 CU und ca. 24000 CU umfasst.
- Rauchartikel (1), der ein Filterelement (3) nach einem der Ansprüche 1 bis 6 umfasst und ein Tabakstab (2) mit einem Ende des Filterelements (3) verbunden ist, indem das Umhüllungsmaterial (9) das Ende des Filterelements (3) und ein Ende des Tabakstabes (2) überlappt.
- Rauchartikel nach Anspruch 7, der einen maximalen Druckabfall von unter 130 mm H2O aufweist.
- Rauchartikel (1) nach Anspruch 7 oder Anspruch 8, wobei der zweite Teil des Umhüllungsmaterials (11), der die Öffnung (13) umfasst, ein Segment (6) des Stopfens aus Filtermaterial einschließlich der Perforation (8) und zumindest Teil eines Segments (6) des Stopfens aus Filtermaterial umgibt, der frei von der zumindest einen Perforation (8) ist.
- Rauchartikel (1)nach einem der Ansprüche 8 bis 9, wobei die ersten und zweiten Teile (10, 11) des Umhüllungsmaterials (9) durch einen Umfangsschlitz (12) um den Filterstopfen herum getrennt sind.
- Rauchartikel nach Anspruch 10, wobei die ersten und zweiten Segmente (5, 6) des Stopfens aus Filtermaterial durch einen Umfangsschnitt (7) in einer zweiten Ebene senkrecht zur gemeinsamen Längsachse getrennt sind, und wobei sich der Umfangsschlitz (12) in der zweiten Ebene befindet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15704818T PL3116333T3 (pl) | 2014-03-11 | 2015-02-18 | Element filtracyjny do wyrobu do palenia |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14158737 | 2014-03-11 | ||
PCT/EP2015/053418 WO2015135723A1 (en) | 2014-03-11 | 2015-02-18 | Filter element for a smoking article |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3116333A1 EP3116333A1 (de) | 2017-01-18 |
EP3116333B1 true EP3116333B1 (de) | 2018-12-19 |
Family
ID=50239489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15704818.2A Active EP3116333B1 (de) | 2014-03-11 | 2015-02-18 | Filterelement für einen rauchartikel |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP3116333B1 (de) |
JP (1) | JP2017507660A (de) |
KR (1) | KR20160134732A (de) |
EA (1) | EA032253B1 (de) |
ES (1) | ES2706491T3 (de) |
PL (1) | PL3116333T3 (de) |
TR (1) | TR201900291T4 (de) |
WO (1) | WO2015135723A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4118981A4 (de) * | 2021-05-31 | 2023-08-23 | China Tobacco Yunnan Industrial Co., Ltd | Heizzigarette mit einstellbarer rohrwandluftdurchlässigkeit und permeationsposition und einstellverfahren dafür |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11272734B2 (en) | 2017-04-03 | 2022-03-15 | Philip Morris Products S.A. | Smoking article mouthpiece configured to receive an insert unit |
KR102444970B1 (ko) * | 2019-04-29 | 2022-09-19 | 차이나 타바코 윈난 인더스트리얼 컴퍼니 리미티드 | 저차단 가열 불연소 궐련 담배 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4570649A (en) * | 1982-09-30 | 1986-02-18 | Philip Morris Incorporated | Filter cigarette |
US4649944A (en) * | 1982-09-30 | 1987-03-17 | Philip Morris Incorporated | Filter cigarette |
US4646763A (en) * | 1985-11-19 | 1987-03-03 | Philip Morris Incorporated | Adjustable filter cigarette |
US4687009A (en) * | 1986-02-24 | 1987-08-18 | Philip Morris Incorporated | Adjustable filter cigarette and method of manufacture thereof |
JP3181248B2 (ja) * | 1997-10-06 | 2001-07-03 | 日本たばこ産業株式会社 | フィルター付きシガレットおよびシガレット用フィルター |
EP2368448A1 (de) * | 2010-03-26 | 2011-09-28 | Philip Morris Products S.A. | Rauchartikel mit variabler Belüftung |
GB201116866D0 (en) * | 2011-09-29 | 2011-11-09 | British American Tobacco Co | Smoking articles |
AR089183A1 (es) * | 2011-11-30 | 2014-08-06 | Philip Morris Products Sa | Articulo para fumar con una boquilla ventilada que comprende primeras y segundas vias de flujo de aire |
-
2015
- 2015-02-18 EA EA201691601A patent/EA032253B1/ru not_active IP Right Cessation
- 2015-02-18 ES ES15704818T patent/ES2706491T3/es active Active
- 2015-02-18 PL PL15704818T patent/PL3116333T3/pl unknown
- 2015-02-18 WO PCT/EP2015/053418 patent/WO2015135723A1/en active Application Filing
- 2015-02-18 TR TR2019/00291T patent/TR201900291T4/tr unknown
- 2015-02-18 KR KR1020167028283A patent/KR20160134732A/ko not_active Application Discontinuation
- 2015-02-18 JP JP2016556290A patent/JP2017507660A/ja active Pending
- 2015-02-18 EP EP15704818.2A patent/EP3116333B1/de active Active
Non-Patent Citations (1)
Title |
---|
None * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4118981A4 (de) * | 2021-05-31 | 2023-08-23 | China Tobacco Yunnan Industrial Co., Ltd | Heizzigarette mit einstellbarer rohrwandluftdurchlässigkeit und permeationsposition und einstellverfahren dafür |
Also Published As
Publication number | Publication date |
---|---|
ES2706491T3 (es) | 2019-03-29 |
KR20160134732A (ko) | 2016-11-23 |
EP3116333A1 (de) | 2017-01-18 |
EA032253B1 (ru) | 2019-04-30 |
JP2017507660A (ja) | 2017-03-23 |
EA201691601A1 (ru) | 2017-03-31 |
WO2015135723A1 (en) | 2015-09-17 |
TR201900291T4 (tr) | 2019-02-21 |
PL3116333T3 (pl) | 2019-06-28 |
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