EP1004510B1 - Procédé et dispositif pour stériliser et nettoyer des bandes en matériau d'emballage pour la fabrication d'emballages - Google Patents

Procédé et dispositif pour stériliser et nettoyer des bandes en matériau d'emballage pour la fabrication d'emballages Download PDF

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Publication number
EP1004510B1
EP1004510B1 EP99123401A EP99123401A EP1004510B1 EP 1004510 B1 EP1004510 B1 EP 1004510B1 EP 99123401 A EP99123401 A EP 99123401A EP 99123401 A EP99123401 A EP 99123401A EP 1004510 B1 EP1004510 B1 EP 1004510B1
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EP
European Patent Office
Prior art keywords
steam
sheet
chamber
packing material
nozzle
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.)
Expired - Lifetime
Application number
EP99123401A
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German (de)
English (en)
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EP1004510A1 (fr
Inventor
Gunter Kurth
Peter Walter
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Hassia Verpackungsmaschinen GmbH
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Hassia Verpackungsmaschinen GmbH
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Publication of EP1004510A1 publication Critical patent/EP1004510A1/fr
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    • 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
    • B65B55/103—Sterilising flat or tubular webs

Definitions

  • the invention relates to a method and an apparatus for Germ reduction and cleaning of at least the product side Area of a packaging material web passing through a sterile flow chamber made of plastic using water vapor as Sterilant.
  • the packaging material web in the process according to US-A-4,537,007 also heated by the hot water bath itself, if at all only drops into the flow chamber when wetted dropwise, the superheated steam, which apparently should also serve in particular to dry the packaging material web, should only be used unevenly Effect come because it hits wetted and unwetted packaging material areas.
  • the steam is supplied to the flow-through or sterile chamber already in the overheated state, which requires an overheating unit outside the flow-through chamber and correspondingly insulated steam feed lines, whereby it must also be taken into account that only saturated steam networks are generally available in the installation rooms of packaging machines.
  • the invention lies The task is based on a method and a device for its To create implementation with which the steam is rational first where it is converted into superheated steam where it is actually needed and as superheated steam on the dry entering Packaging material web in order to form a uniform, thin Condensate film is sprayed.
  • This task is related to a first method according to the Invention by the characterizing part of the independent claim 1 listed features solved.
  • the demands made are met because, on the one hand, a smaller amount of saturated steam has to be generated or supplied and, on the other hand, due to its conversion into superheated steam, a smaller but nevertheless necessary amount of condensate is obtained before the spraying and this condensate precipitating in a thin layer on the packaging material web is used specifically for thermal germ killing as a result of the temperature gradient between the superheated steam temperature and the packaging material web temperature level.
  • the sterile flow chamber is a simple, box-shaped housing with slot-shaped inlet and outlet openings for the packaging material web, this housing with respect to Evaporation cavities according to the aforementioned two first publications has a volume that is many times larger.
  • steam from a short distance nozzle opening distance to the packaging material web about 5-6 mm in the first procedure
  • the sterile flow chamber no directing or guiding function for the superheated steam in with respect to the packaging material web, which is also not necessary, since how said, the more or less overheated steam immediately the packaging material web is sprayed on.
  • the saturated steam supply to the device or to the nozzle can also be controlled or switched on and off in a known manner, on the one hand directly in relation to the nozzle jet intensity and on the other hand also with regard to the fact that the packaging material web is cycled to the rhythm of the following processing machine is conveyed through the sterile flow chamber, which is to be preferred insofar as the mechanical outlay is thereby reduced, since there is no need for a complex mechanical transition area (accumulation loop guide) for a packaging material web that continuously enters the sterile flow chamber and is then clocked into the subsequent processing machine.
  • the device for carrying out the first method consists of a packaging material roll holder 1 with a downstream sterilization flow chamber 2 and means for controllable steam supply, behind which flow chamber 2 a sterile further processing section 3 is arranged, which is formed by a packaging machine.
  • This flow chamber 2 is provided with inlet and outlet slots 2 ′, 2 ′′ for the packaging material web PB.
  • FIGS. 1 The exemplary embodiments shown in FIGS.
  • 1, 2 are a deep-drawing machine as a further processing section 3, with which on the packaging material web PB running through in time
  • cups in subsequent stations F, F, S are formed, filled, closed and then the cups are separated from the packaging material strand individually or in groups in a punching station ST
  • a cover film web DB to be fed to the closing station S, which of course also has to be sterilized, is over the closing station S a corresponding flow chamber 2 is arranged, which is only indicated by dashed lines at the top right in Fig.1
  • the packaging material web PB is conveyed through the pass-through chamber 2 in a clocked manner, while according to FIG.
  • the steam supply in the form of at least one substantially transversely to the direction of the packaging material passage, in the sterile flow chamber 2 provided with a condensate discharge 14 and open towards the atmosphere with a small outlet distance D is formed above the packaging material web passage plane E, its internal steam duct 4 leading to the nozzle opening 7 is provided with an adjustable and opposed.
  • sensor-controlled energy supply device 6 for example, electrical heating resistor
  • a temperature sensor 29 is arranged in front of the sterile flow chamber 2, with which influence is exerted on the energy supply and thus on the degree of overheating of the steam to be injected.
  • control for the energy supply device 6 is also designated with 21, the steam pressure and steam quantity control with 22 and the saturated steam supply line with 23.
  • the flow chamber 2 is provided with a condensate drain 14, specifically for condensate which precipitates on the walls of the flow chamber.
  • the saturated steam supplied through the line 23 and from the valve 22 is converted into superheated steam directly in the nozzle itself before being applied to the packaging material web PB by a correspondingly regulated supply of energy and then onto the packaging material web PB conveyed through the open-air chamber 2 during the transport movement of which is sprayed transversely to this on at least the product side from a short distance D with essentially the same intensity over the width of the packaging material B, which, as has been shown, leads to an extremely effective germ reduction.
  • the saturated steam supplied, for example, at 5.5 bar emerges at a nozzle 5 kept at approximately 300 ° C. by supplying energy via device 6 at approximately 200 ° C.
  • the nozzle 5 is designed so that the steam jet sprayed out has essentially the same intensity over the entire width of the packaging material B.
  • a large width of the packaging material web PB this means that within a nozzle head 5 '(see FIG. 5) there are several chambers 24 which can be fed evenly with steam and which have slot openings 25 with a maximum width of 10 to 20 mm.
  • a plurality of such nozzle designs are arranged side by side in a nozzle head 5 ', only three of which are shown in FIG. 1 clocked through the flow chamber 2, the saturated steam supply is effected in a clocked manner via a correspondingly also controlled on-off controller, which can be integrated in the controller 22, i.e.
  • the spraying takes place only when the Packing material web PB moves with its affected section in the through-flow chamber 2, whereby, if the required disinfection rate requires it, it is entirely possible to arrange two nozzles 5 or nozzle heads 5 'one behind the other, as indicated by dashed lines in FIG. 4.
  • the sterile flow chamber 2 has the first part of the downstream, sterile further processing section 3 in the form of a packaging material web which is also to be kept sterile Exchange barrel-receiving space 20 is formed, and behind this means FM are arranged for the timed withdrawal of the sterile packaging material web PB, which means are only indicated schematically, especially since these are the clock conveying means of the downstream packaging machine.
  • a so-called condensate doctor blade 26 is also arranged in the through-flow chamber 2 behind the at least one nozzle 5, essentially transversely to the through-flow direction, from which the scraped-off condensate KO, for example, by means of an air-operated suction device that operates on the principle of a Venturi nozzle 27 is discharged.
  • this suction device 27 has the advantage that it is completely insensitive to the kill media and their residues.
  • the device Since, when the device is in operation, the steam is freely sprayed into the flow chamber 2 on the packaging material PB and the relaxing steam also spreads throughout the flow chamber and also precipitates on the walls thereof, as mentioned above, it is provided with a condensate drain 14, which leads to a Condensate drain 14 'provided collector 28, which also receives the condensate KO coming from the condensate doctor 26.
  • the condensate drain 14 is also connected to a suction device 27, in which a strong air flow is supplied to the condensate flow, so that suction is generated at the condensate drain 14 (Venturi nozzle principle).
  • a condensate suction device 26 ' is also expediently arranged on the underside of the packaging material web PB.
  • the nozzle 5 which, if this requires the further treatment section 3 to be kept sterile, i.e. where the underside of the packaging material web is also passed through a so-called full tunnel 30 in a sterile manner (see FIG. 1), so that at least one is also in the through-flow chamber 2 from below arranged nozzle directed against the packaging material.
  • the nozzle arrangement "with a short distance D to the packaging material web" it has a size of 4 to 8 mm.
  • the nozzle 5 is arranged in the pass-through chamber 2 with respect to its distance and inclination (see arrows on the second nozzle shown in dashed lines) so that optimal distance and inclination settings can be made for the respectively treated packaging material web.
  • the inclination of the nozzle shown in FIG. 4 in the direction of passage has proven to be particularly advantageous since the condensate film which forms under the nozzle on the web runs away from the nozzle with the packaging material web.
  • a packing material storage loop receiving space 20 is required, for a perfect packaging material web transport the transition point between continuous steaming and To be able to guarantee timed further treatment.
  • a packing material storage loop receiving space 20 is, as shown in Figure 6, advantageously provided that Pass-through chamber 2 in and against the running direction of the packaging material web PB slidable to store, the displacement path corresponds at least to the material feed rate per cycle.
  • the procedure is such that saturated steam is fed to the nozzle and the saturated steam is heated before application to the packaging material web by controlled supply of energy immediately before it is sprayed out, and the superheated steam is injected into one over treating steam packaging section formed is sprayed over the entire surface in the steam storage space kept closed during the vapor deposition onto the packaging material PB with formation of a condensate film.
  • the nozzle 5 according to FIGS. 8, 9 is designed in the form of a heatable steaming box 8 with an inner steam distribution chamber 9, which is closed off from the packaging material pass plane E with a nozzle plate 10 containing a plurality of nozzle openings 7 '.
  • the nozzle plate 10 is advantageously formed from a central part 10 'and from two edge parts 10 ", the separately held distribution and distribution chambers 11 of which are connected to separate, controllable saturated steam supply lines 4".
  • the steaming box 8 On the packaging material web side, the steaming box 8 is provided with a seal 13 delimiting a steam storage space 12.
  • the device designed in this way can be operated both in a clocked manner and with a continuously running packaging material web PB.
  • the stopped packaging material web section is pressed against the seal 13 from below with a plate 8 ′′ shown only in broken lines in FIG that a self-contained steam storage space 12 is available for the full-surface spraying with superheated steam, after its completion the plate 8 "is again slightly lowered and the residual steam (saturated steam / wet steam) can escape into the continuous flow chamber 2.
  • the seal 13 can also be designed in the form of a circumferential, more or less flexible lip seal (not particularly shown), which then also delimits a vapor storage space 12, but which remains open all around due to a narrow gap between the seal 13 and the packaging material web PB.
  • the packaging material web can also be conveyed continuously under the steaming box 8, which then, depending on the operating mode of the downstream packaging machine. and as mentioned above, a damming loop guide 20 according to FIG. 2 of the packaging material PB requires.
  • the formation of such a steam storage space 12, which can also be provided for the nozzles 5 according to FIG. 4 (indicated by dots there), has proven to be advantageous in that, as has been shown, the edge areas of a continuous packaging material web are also suitable for this let the optimized disinfection be recorded with certainty.
  • the vaporization box 8 forming the “nozzle” is provided with a controllable, electrical heating resistor 8 ′, which includes the entire upper part of the box 8, which also contains the saturated steam distribution lines 4, for converting the saturated steam into superheated steam Temperature.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Package Closures (AREA)

Claims (20)

  1. Procédé pour la réduction des germes et le nettoyage au moins de la surface située du côté des matières de remplissage d'une bande de matière d'emballage (PB) qui passe par une chambre de passage de stérilisation (2), au moyen de vapeur surchauffée éjectée par au moins une tuyère (5), la bande de matière d'emballage stérilisée étant ensuite introduite dans un tunnel stérile (3) d'une machine d'emballage et la chambre de passage de stérilisation (2) et le tunnel stérile étant maintenus en légère surpression par rapport à l'atmosphère,
    caractérisé en ce que de la vapeur saturée est amenée à la tuyère (5) et la vapeur saturée est surchauffée par un apport d'énergie réglé directement avant son éjection avant d'être appliquée sur la section de bande de matière d'emballage qui se trouve dans la chambre de passage de stérilisation (2) et introduite sèche dans la chambre (2) et que cette vapeur surchauffée est éjectée avec substantiellement la même intensité sur toute la longueur d'au moins une ligne transversale de la bande de matière d'emballage sur celle-ci en formant une pellicule de produit de condensation.
  2. Procédé selon la revendication 1,
    caractérisé en ce que la pellicule de produit de condensation formée sur la surface de la bande de matière d'emballage vaporisée dans la chambre de passage (2) est ensuite soumise à une aspiration du produit de condensation avant de quitter la chambre de passage de stérilisation.
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que la vapeur surchauffée est éjectée en étant inclinée par rapport à la bande de matière d'emballage et dans son sens de passage.
  4. Procédé selon l'une des revendications 1 à 3,
    caractérisé en ce que la section de bande de matière d'emballage à traiter est maintenue en mouvement relatif par rapport à la vapeur surchauffée éjectée.
  5. Procédé selon l'une des revendications 1 à 4,
    caractérisé en ce que, pour un transport cadencé de la bande de matière d'emballage à travers la chambre de passage de stérilisation (2), l'éjection de vapeur est effectuée de manière cadencée correspondante.
  6. Procédé pour la réduction des germes et le nettoyage au moins de la surface située du côté des matières de remplissage d'une bande de matière d'emballage (PB) qui passe par une chambre de passage de stérilisation (2), au moyen de vapeur surchauffée éjectée par au moins une tuyère (5), la bande de matière d'emballage stérilisée étant ensuite introduite dans un tunnel stérile (3) d'une machine d'emballage et la chambre de passage de stérilisation (2) et le tunnel stérile étant maintenus en légère surpression par rapport à l'atmosphère,
    caractérisé en ce que de la vapeur saturée est amenée à la tuyère (5) et la vapeur saturée est surchauffée par un apport d'énergie réglé directement avant son éjection avant d'être appliquée sur la section de bande de matière d'emballage qui se trouve dans la chambre de passage de stérilisation (2), introduite sèche en cadence pas à pas dans la chambre (2) et que cette vapeur surchauffée est éjectée dans un espace de réserve de vapeur (12) formé au-dessus de la section de bande de matière d'emballage à traiter avec substantiellement la même intensité sur toute la surface dans l'espace de réserve de vapeur maintenu fermé pendant la vaporisation sur la bande de matière d'emballage en formant une pellicule de produit de condensation.
  7. Procédé selon la revendication 6,
    caractérisé en ce que la pellicule de produit de condensation formée sur la surface vaporisée de la bande de matière d'emballage vaporisée dans l'espace de réserve de vapeur (12) est soumise ensuite à une aspiration du produit de condensation, l'espace de réserve de vapeur étant ouvert, avant de quitter la chambre de passage de stérilisation (2).
  8. Procédé selon la revendication 6 ou 7,
    caractérisé en ce que l'éjection de la vapeur surchauffée est effectuée l'espace de réserve de vapeur (12) étant maintenu fermé.
  9. Procédé selon l'une des revendications 1 à 8,
    caractérisé en ce que l'excès de vapeur qui se forme dans la chambre de stérilisation (2) est aspiré de celle-ci.
  10. Procédé selon l'une des revendications 1 à 9,
    caractérisé en ce que le surchauffage de la vapeur saturée amenée est réglé en fonction de la température de la bande de matière d'emballage.
  11. Dispositif pour exécuter le procédé selon la revendication 1 constitué par un support de rouleau de bande de matière d'emballage (1) avec une chambre de passage de stérilisation placée après (2) avec un dispositif (4) pour l'apport réglable de la vapeur avec au moins une tuyère (5), un tunnel stérile (3) d'une machine d'emballage raccordée à la chambre de passage (2) étant raccordé derrière la chambre de passage de stérilisation (2),
    caractérisé en ce que la bande de matière d'emballage (PB) peut être introduite sèche dans la chambre (2), que le dispositif (4) pour l'apport de vapeur présente une amenée de vapeur saturée configurée réglable à l'intérieur de la chambre de passage stérile (2) vers la tuyère (5) qui existe au moins qui saisit la largeur de la bande de matière d'emballage et qu'un dispositif d'apport d'énérgie réglable (6) est placè directement devant l'éjection pour augmenter la température de la vapeur saturée à la température de la vapeur surchauffée et que la tuyère (5) est pourvue devant son ouverture (7) d'éléments pour la répartition uniforme de la vapeur surchauffée.
  12. Dispositif selon la revendication 11,
    caractérisé en ce qu'un dispositif d'aspiration de produit de condensation (26) est placé devant l'ouverture de sortie (2') de la chambre (2) dans celle-ci.
  13. Dispositif selon la revendication 11 ou 12,
    caractérisé en ce que le dispositif d'apport d'énergie (6) est placé sur une pièce de guidage de la vapeur (4') qui se trouve directement devant l'ouverture de la tuyère (7).
  14. Dispositif selon l'une des revendications 11 à 13,
    caractérisé en ce que la tuyère (5) qui existe au moins est configurée réglable quant à sa distance et/ou son inclinaison par rapport au plan de passage de la bande de matière d'emballage (E).
  15. Dispositif pour exécuter le procédé selon la revendication 1 constitué par un support de rouleau de bande de matière d'emballage (1) avec une chambre de passage de stérilisation placée après (2) avec un dispositif (4) pour l'apport réglable de la vapeur avec au moins une tuyère (5), un tunnel stérile (3) d'une machine d'emballage raccordée à la chambre de passage (2) étant raccordé derrière la chambre de passage de stérilisation (2),
    caractérisé en ce que la bande de matière d'emballabe (PB) peut être introduite sèche dans la chambre (2), que le dispositif (4) pour l'apport de vapeur présente une amenée de vapeur saturée configurée réglable et qu'à l'intérieur de la chambre de passage stérile (2) la tuyère (5) est configurée en forme de caisse de vaporisation (8) pouvant être chauffée, qui peut être posée en cadence sur la bande de matière d'emballage, avec une chambre de répartition intérieure de la vapeur (9), laquelle chambre (9) est fermée contre le plan de passage de la bande de matière d'emballage (E) avec des plaques de tuyère (10) qui contiennent une multitude d'ouvertures de tuyères (7') en formant un espace de réserve de vapeur (12) et la caisse de vaporisation (8) est pourvue d'un dispositif réglable d'apport d'énergie (6) pour augmenter la température de la vapeur saturée à la température de la vapeur surchauffée et que la tuyère (5) est pourvue devant son ouverture (7) d'éléments pour la répartition uniforme de la vapeur surchauffée.
  16. Dispositif selon la revendication 15,
    caractérisé en ce qu'un dispositif d'aspiration de produit de condensation (26) est placé devant l'ouverture de sortie (2') de la chambre (2) dans celle-ci.
  17. Dispositif selon la revendication 15 ou 16,
    caractérisé en ce que la plaque de tuyère (10) est formée par une partie centrale (10') et deux parties marginales (10") dont les chambres de répartition et de dosage (11) maintenues séparées sont raccordées à des conduites d'amenée séparées réglables de vapeur saturée (4").
  18. Dispositif selon l'une des revendications 11 à 17,
    caractérisé en ce que la caisse de vaporisation (8) est pourvue, du côté de la bande de matière d'emballage, d'une étanchéité (13) qui délimite l'espace de réserve de vapeur (12).
  19. Dispositif selon l'une des revendications 11 à 18,
    caractérisé en ce que la chambre de passage de stérilisation (2) est pourvue d'une évacuation de produit de condensation (14).
  20. Dispositif selon l'une des revendications 11 à 19,
    caractérisé en ce qu'un détecteur de température (30) pour la bande de matière d'emballage est placé devant l'admission de la chambre de passage de stérilisation (2).
EP99123401A 1998-11-27 1999-11-24 Procédé et dispositif pour stériliser et nettoyer des bandes en matériau d'emballage pour la fabrication d'emballages Expired - Lifetime EP1004510B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19854804 1998-11-27
DE19854804A DE19854804A1 (de) 1998-11-27 1998-11-27 Verfahren und Vorrichtung zur Keimreduzierung und Reinigung von Packstoffbahnen für die Herstellung von Verpackungen

Publications (2)

Publication Number Publication Date
EP1004510A1 EP1004510A1 (fr) 2000-05-31
EP1004510B1 true EP1004510B1 (fr) 2002-04-03

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EP99123401A Expired - Lifetime EP1004510B1 (fr) 1998-11-27 1999-11-24 Procédé et dispositif pour stériliser et nettoyer des bandes en matériau d'emballage pour la fabrication d'emballages

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US (1) US6442915B1 (fr)
EP (1) EP1004510B1 (fr)
DE (2) DE19854804A1 (fr)
ES (1) ES2172973T3 (fr)

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DE19903259C1 (de) * 1999-01-28 2000-07-13 Hassia Verpackung Ag Vorrichtung zum Entkeimen von Packstoffbahnen
DE60233928D1 (de) * 2002-02-08 2009-11-19 Tetra Laval Holdings & Finance Vorrichtung zur Sterilisation von Packstoffbahn in einer Verpackungsmachine für fliessfähige Nahrungsmittel
CA2519196A1 (fr) * 2003-03-27 2004-10-14 Swf Companies, Inc. Formeuse-remplisseuse-scelleuse rapide a action continue
DE102005052826A1 (de) * 2005-11-05 2007-05-10 Hassia Verpackungsmaschinen Gmbh Verfahren und Einrichtung zum Sterilisieren einer unverformten, taktschrittgeförderten Packstoffbahn
WO2008149377A1 (fr) * 2007-06-04 2008-12-11 Harish Prabhakar Joshi Procédé de conditionnement aseptique
DE102008035605B4 (de) * 2008-07-31 2012-06-14 Khs Gmbh Transportstrecke zum Fördern von Kappen oder dergleichen Verschlüssen zum Verschließen von Flaschen oder dergleichen Behältern
WO2015154985A1 (fr) * 2014-04-11 2015-10-15 Tetra Laval Holdings & Finance S.A. Dispositif de rouleau comprenant un capteur de température destiné à détecter une température de matière de conditionnement

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DE19854804A1 (de) 2000-05-31
US6442915B1 (en) 2002-09-03
EP1004510A1 (fr) 2000-05-31
ES2172973T3 (es) 2002-10-01
DE59901108D1 (de) 2002-05-08

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