EP3860661A2 - Verfahren und vorrichtung zum sterilisieren von preforms oder von daraus geformten behältern - Google Patents
Verfahren und vorrichtung zum sterilisieren von preforms oder von daraus geformten behälternInfo
- Publication number
- EP3860661A2 EP3860661A2 EP19782973.2A EP19782973A EP3860661A2 EP 3860661 A2 EP3860661 A2 EP 3860661A2 EP 19782973 A EP19782973 A EP 19782973A EP 3860661 A2 EP3860661 A2 EP 3860661A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- preforms
- sterilization
- components
- parts
- containers
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
- A61L2/06—Hot gas
- A61L2/07—Steam
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
- B65B55/02—Sterilising, e.g. of complete packages
- B65B55/04—Sterilising wrappers or receptacles prior to, or during, packaging
- B65B55/10—Sterilising wrappers or receptacles prior to, or during, packaging by liquids or gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/42403—Purging or cleaning the blow-moulding apparatus
- B29C49/42405—Sterilizing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/42414—Treatment of preforms, e.g. cleaning or spraying water for improved heat transfer
- B29C49/42416—Purging or cleaning the preforms
- B29C49/42418—Purging or cleaning the preforms for sterilizing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4252—Auxiliary operations prior to the blow-moulding operation not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
- B29C49/4282—Purging or cleaning the article
- B29C49/42822—Sterilizing the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C7/00—Concurrent cleaning, filling, and closing of bottles; Processes or devices for at least two of these operations
- B67C7/0073—Sterilising, aseptic filling and closing
Definitions
- the invention relates to a method and a device for the sterilization of preforms ("preforms") for the production of containers shaped by pneumatic pressure (blowing pressure) or hydraulic pressure (in particular the pressure of a fluid to be filled), or for sterilizing them Wise shaped containers.
- preforms for the production of containers shaped by pneumatic pressure (blowing pressure) or hydraulic pressure (in particular the pressure of a fluid to be filled), or for sterilizing them Wise shaped containers.
- the invention further relates to a method and a device for producing containers formed from preforms by pneumatic pressure (blowing pressure) or hydraulic pressure (in particular the pressure of a fluid to be filled), with a method or a device for sterilizing the preforms or from them container shaped by pneumatic or hydraulic pressure.
- pneumatic pressure Blowing pressure
- hydraulic pressure in particular the pressure of a fluid to be filled
- Blow molded containers are usually produced by expanding a preform ("preform") made of a thermoplastic material such as PET into a blow mold by exerting blowing pressure, in order then to be filled with a filling (in particular a fluid) in a subsequent filling station
- preform a preform made of a thermoplastic material such as PET
- filling in particular a fluid
- sterilization of the preform or the container blow-molded therefrom is also required before the filling material is introduced.
- a corresponding device for producing filled containers from pre-molded articles is from WO 2011/076167 known.
- sterilization of the preforms or containers is generally required.
- a problem with the sterilization can be that at least small amounts of the sterilizing agent are not in the preform to be sterilized or the container but in the surrounding areas and on other parts or components of the relevant sterilization room or the sterilization device, for example Transport and conveying facilities, guided tours, etc.
- the sterilizing agent usually has a temperature that is higher than these areas and parts, for example between about 100 ° C. and about 130 ° C., there is a risk that the (vaporous) sterilizing agent will condense in these areas and on these parts or components.
- the condensate can then lead to salt-like deposits which can only be removed with great effort and can cause damage due to corrosion and other problems.
- the invention is therefore based on the object of specifying a method and a device for sterilizing preforms ("preforms") for the production of containers shaped by pneumatic or hydraulic pressure or for the sterilization of containers shaped in this way, with which of the above-mentioned deposits and problems in connection with undesired condensation of sterilization steam or the aforementioned accumulation of condensate can be at least partially avoided.
- a condensation of sterilization steam on the parts and components where this condensation is undesirable is at least partially prevented by either heating these parts or components to a temperature which is preferably at least as high as the condensation temperature of the sterilization - Steam, and / or by the fact that at least part of the sterilization steam liquefied by condensation on cooling elements (hereinafter referred to as "condensation traps") and thus such undesirable condensation is avoided.
- This solution can be used both in connection with the sterilization of preforms and in connection with the sterilization of containers formed from the preforms by pneumatic or hydraulic pressure and is preferably part of a device or a method for blow molding containers made of thermoplastic material.
- this solution can also be used as a component of a device or a method for producing filled containers from preforms, in which the preforms are expanded into a blow mold by the (hydraulic) pressure of a fluid to be filled, so that the containers are shaped and filled represent a common process.
- the condensation traps are preferably only cooling elements provided for the purpose mentioned, which are used, for example, in combination with a collecting trough which is arranged in such a way that the condensate formed drips selectively into it or runs off.
- Such a collecting trough can contain a means (for example water or another liquid) for diluting or neutralizing the collected condensate or a catalyst for splitting the condensate into less chemically aggressive substances.
- a catalyst for example, which is bound to a support matrix introduced into the collecting trough.
- heavy metal ions such as Mn 2+ ions or an enzymatic catalyst or other catalysts with which the hydrogen peroxide is broken down into water and oxygen.
- parts or components are preferably heated on which a precipitate of sterilizing agent is particularly disadvantageous or critical for the further production process, such as, for example, on the elements mentioned above, which lie above the openings of the preforms or containers to be sterilized.
- the condensation traps and / or the heated parts or components are also preferably mounted interchangeably, so that the production process does not have to be interrupted for cleaning the condensation traps or the heated parts or components.
- the condensation traps are also preferably designed as hollow bodies through which a liquid or gaseous coolant can be passed.
- the heated parts or components could also be designed as hollow bodies through which a liquid or gaseous heating medium is passed.
- these parts or components are preferably electrically heated or provided with an electrical heating source (for example resistance heating) which can also be retrofitted and / or is exchangeably mounted.
- an electrical heating source for example resistance heating
- the condensation traps are preferably arranged in the flow region of the at least one exhaust device for the sterilizing agent.
- the condensation traps and / or the heated parts or Components preferably likewise stationary and preferably arranged along at least part of this transport route.
- the sterilization steam is dispensed through one or more movably arranged dispensing devices, such as in particular nozzles arranged on wheels, which follow the preforms during the dispensing of the sterilization steam along part of their transport path, they are stationary or in addition to the alternatives mentioned above Condensation traps and / or stationary heated parts or components, preferably such condensation traps and / or heated parts or components, which are arranged along at least part of this transport path with the delivery devices.
- Both the condensation traps and the heated parts or components are preferably made of metal or have a metallic surface
- FIG. 1 shows a first 3D view of a first embodiment of a device according to the invention
- FIG. 2 shows a second 3D view of the first embodiment according to FIG. 1;
- Fig. 3 shows a first 3D view of a second embodiment of a device according to the invention
- FIG. 4 shows a second 3D view of the second embodiment according to FIG. 3;
- Fig. 5 shows a first 3D view of a third embodiment of a device according to the invention.
- FIG. 6 shows a second 3D view of the third embodiment according to FIG. 5.
- FIG. 7 shows a third 3D view of the third embodiment according to FIG. 5.
- Figures 1 and 2 show the basic structure of a first embodiment of a device according to the invention, which is usually arranged in a sterilization room enclosing this.
- the essential components are a first wheel 1, to which the preforms P to be sterilized are fed and which, in the plan view of FIGS. 1 and 2, is driven to rotate counterclockwise, and a second wheel 2, which rotates clockwise, and which the sterilized preforms P takes over from the first wheel 1 and feeds this to another processing station within a device for blow molding containers.
- the two wheels 1, 2 are usually designed in the form of pocket wheels and have cutouts (pockets) arranged along their circumference, which are dimensioned such that in each case a preform P can be held essentially vertically with its opening pointing upwards.
- the two wheels 1, 2 can also be designed as pincer wheels on which the preforms are held with pincer-like elements.
- a sterilizing agent which is usually a sterilizing steam and has, for example, hydrogen peroxide, peracetic acid and / or other chemical sterilizing agents as well as water and hot air and, for example, a temperature of between about 100 ° C. and about l30 ° C.
- the feed 3 ends in a fixed nozzle, which is located above the pockets of the first wheel 1 and which is directed towards the openings of the preforms P conveyed under the nozzle, so that the sterilization steam emerging from the nozzle reaches the preforms P.
- this steam also enters the gaps between two adjacent pre forms P during the rotation of the first wheel 1 and then condenses in particular on parts of the first wheel 1 and on guides and other components and areas below of the sterilization room.
- a condensation trap is provided in the first embodiment shown in FIGS. 1 and 2, which has at least one cooling element 10, 11, 12, 13, through which a liquid or gaseous coolant (for example cold water) is conducted at such a temperature that sterilization steam that reaches this cooling element condenses as far as possible on it.
- a liquid or gaseous coolant for example cold water
- the at least one cooling element is arranged so that it is located in the flow area or in the vicinity of the nozzle, i.e. is acted upon by the highest possible proportion of the sterilizing agent which does not get into the preforms P passed under the nozzle.
- cooling elements 10, 11, 12, 13 are seen in FIGS. 1 and 2, with a first and a second cooling element 10, 11 above the first wheel 1 and a third and a fourth cooling element 12, 13 below the first wheel 1 is located.
- a trough 14 is arranged under the cooling elements for collecting the condensate dripping from the cooling elements.
- the first and second cooling elements 10, 11 are each inclined obliquely outwards with respect to the horizontal plane in the radial direction of the first wheel 1, so that the condensate precipitating on these cooling elements 10, 11 does not impinge on the first wheel 1 and the openings of the Preforms P drips, but runs into the tub 14.
- the third and fourth cooling elements 12, 13 are each arranged essentially vertically below the first wheel 1 and wholly or partially above the tub 14, so that the condensate which precipitates runs off directly into the tub 14.
- such a collecting trough can contain, for example, water or another liquid or a catalyst with which the absorbed Condensate is diluted or neutralized or chemically split to at least reduce its chemical aggressiveness.
- Figures 3 and 4 show the basic structure of a second embodiment of a device according to the invention.
- the same or corresponding parts and components as in the first embodiment are denoted by the same reference numerals.
- a stationary electrical heating element 20, 21 with electrical connections 22 is provided instead of the first and second cooling elements 10, 11, a stationary electrical heating element 20, 21 with electrical connections 22 is provided.
- the heating element preferably comprises an electrical heating source 21, for example in the form of a resistance heater, which generates heat by supplying electrical current via the connections 22.
- the heat source 21 is mounted on metallic roof surfaces 20, so that the heat generated is distributed by heat conduction over the roof surfaces 20.
- the roof surfaces 20 are located above the openings of the preforms P inserted in the first wheel 1 and extend on both sides of the steam nozzle 3 along at least part of the circumference of the first wheel 1 (or a different transport path of the preforms).
- roof surfaces 20 usually prevent dust or other contaminations from falling into the preforms P.
- the heating of these roof surfaces 20 also prevents condensate from accumulating on these roof surfaces 20 and dripping into the preforms. This also applies, for example, to such condensate that forms on parts or components of the sterilization chamber, not shown in the figures, which lie above the openings of the preforms and drip down onto the heated roof surfaces 20, since it would evaporate again there immediately.
- heated roof surfaces or other heating elements could also be used, which, for example, as the cooling elements in FIGS. 1 and 2 Hollow bodies are formed and which are heated by supplying a hot liquid or a hot gas.
- this second embodiment is also preferably provided with cooling elements 12, 13, specifically in accordance with the third and fourth cooling elements 12, 13 in FIGS. 1 and 2, which in turn are essentially perpendicular to the first wheel 1 and in whole or in part are arranged above the tub 14, so that the condensate precipitates directly into the tub 14 and, as explained above, is optionally diluted, neutralized or chemically split there.
- Figures 5 to 7 show the basic structure of a third embodiment of an inventive device.
- the same or corresponding parts and components as in the first and second embodiment are again identified by the same reference numerals.
- An essential difference from the first and second embodiment is that it is not a stationary one, but a plurality of the first upper nozzles 31 that run along with the transport of the preforms P, via which the sterilizing agent is dispensed into the preforms.
- the third embodiment preferably also has a plurality of second lower nozzles 32, which are also not stationary, but are arranged to move with the transport of the preforms P and are used to apply sterilization steam to the outside of the preforms.
- the first and second nozzles 31, 32 are preferably fed with sterilization steam via a common feed 3 or also via separate upper and lower feeds.
- this third embodiment is also preferably provided with a stationary cooling element 12, which in turn is arranged essentially vertically below the first wheel 1 and above a stationary trough 14, so that the condensate which precipitates out runs directly into the tub 14 and, as explained above, is optionally diluted, neutralized or chemically split there.
- the cooling element 12 and thus also the trough 14 preferably extends along at least part of the transport path of the preforms (ie along the circumference of the first wheel 1 according to FIGS. 5 to 7), along which the sterilization steam is discharged from the first and second nozzles 31, 32 onto the preforms P.
- the heated roof elements 20 according to the second embodiment can be dispensed with. If necessary, however, these can also be arranged in the third embodiment.
Landscapes
- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018124287.5A DE102018124287A1 (de) | 2018-10-02 | 2018-10-02 | Verfahren und Vorrichtung zum Sterilisieren von Preforms oder von daraus geformten Behältern |
PCT/EP2019/076522 WO2020070097A2 (de) | 2018-10-02 | 2019-10-01 | Verfahren und vorrichtung zum sterilisieren von preforms oder von daraus geformten behältern |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3860661A2 true EP3860661A2 (de) | 2021-08-11 |
Family
ID=68138067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19782973.2A Pending EP3860661A2 (de) | 2018-10-02 | 2019-10-01 | Verfahren und vorrichtung zum sterilisieren von preforms oder von daraus geformten behältern |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3860661A2 (de) |
CN (1) | CN112805039A (de) |
DE (1) | DE102018124287A1 (de) |
WO (1) | WO2020070097A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020132324A1 (de) * | 2020-12-04 | 2022-06-09 | Krones Aktiengesellschaft | Vorrichtung und Verfahren zum Sterilisieren von Kunststoffvorformlingen |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4617178A (en) * | 1984-11-05 | 1986-10-14 | Nichols Robert L | Medical instrument sterilization container |
US4986414A (en) * | 1988-07-13 | 1991-01-22 | Vistakon, Inc. | Container for a number of packaged contact lenses |
DE102005012507A1 (de) * | 2005-03-16 | 2006-09-21 | Krones Ag | Verfahren und Vorrichtung betrefffend das Sterilabfüllen von Flüssigkeiten |
FR2910329B1 (fr) | 2006-12-20 | 2009-04-17 | Sidel Participations | Procede et dispositif de sterilisation de preformes |
CN102282093B (zh) | 2009-02-06 | 2015-06-10 | 大日本印刷株式会社 | 饮料灌装方法及装置 |
DE102010007541A1 (de) | 2009-12-23 | 2011-06-30 | KHS Corpoplast GmbH, 22145 | Verfahren und Vorrichtung zur Herstellung von gefüllten Behältern |
DE102010022131A1 (de) * | 2010-05-20 | 2011-11-24 | Krones Ag | Sterilisierbare Blasform |
DE102010032336A1 (de) * | 2010-07-22 | 2012-01-26 | Khs Corpoplast Gmbh | Verfahren und Vorrichtung zum Sterilisieren sowie Vorrichtung zur Blasformung von Behältern |
DE102013106694A1 (de) * | 2013-06-26 | 2015-01-15 | Krones Ag | Verfahren und Vorrichtung zum Umformen von Kunststoffvorformlingen zu Kunststoffbehältnissen |
DE102014118776A1 (de) * | 2014-12-16 | 2016-06-16 | Sig Technology Ag | Verfahren und Vorrichtung zum Sterilisieren von Behältern |
-
2018
- 2018-10-02 DE DE102018124287.5A patent/DE102018124287A1/de active Pending
-
2019
- 2019-10-01 WO PCT/EP2019/076522 patent/WO2020070097A2/de unknown
- 2019-10-01 EP EP19782973.2A patent/EP3860661A2/de active Pending
- 2019-10-01 CN CN201980065417.7A patent/CN112805039A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
CN112805039A (zh) | 2021-05-14 |
DE102018124287A1 (de) | 2020-04-02 |
WO2020070097A2 (de) | 2020-04-09 |
WO2020070097A3 (de) | 2020-06-18 |
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