EP1814603A1 - Procede et dispositif de sterilisation de bouteilles en plastique en mouvement continu - Google Patents

Procede et dispositif de sterilisation de bouteilles en plastique en mouvement continu

Info

Publication number
EP1814603A1
EP1814603A1 EP05806747A EP05806747A EP1814603A1 EP 1814603 A1 EP1814603 A1 EP 1814603A1 EP 05806747 A EP05806747 A EP 05806747A EP 05806747 A EP05806747 A EP 05806747A EP 1814603 A1 EP1814603 A1 EP 1814603A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
bottle
hot air
preheating
sterilizing agent
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.)
Withdrawn
Application number
EP05806747A
Other languages
German (de)
English (en)
Inventor
Peter Friedrich
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.)
SIG Services AG
Original Assignee
SIG Technology AG
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 SIG Technology AG filed Critical SIG Technology AG
Publication of EP1814603A1 publication Critical patent/EP1814603A1/fr
Withdrawn legal-status Critical Current

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—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
    • A61L2/16—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances
    • A61L2/186—Peroxide solutions
    • 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—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
    • A61L2/02—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using physical processes
    • A61L2/04—Heat
    • 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—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
    • A61L2/16—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using chemical substances
    • A61L2/22—Phase substances, e.g. smokes or aerosols
    • 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
    • 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
    • A61L2103/00—Materials or objects being the target of disinfection or sterilisation
    • A61L2103/23—Containers other than laboratory or medical, e.g. bottles or mail

Definitions

  • the invention relates to a method for sterilizing upright, open at the top and consecutively transported plastic bottles, in particular for receiving beverages, wherein the bottle interior is first sterilized with a sterilizing agent and the sterilant is then rinsed out, and an apparatus for performing this method.
  • the filling machines have, in addition to the actual filling unit, a sterilizing unit connected upstream of this, wherein the bottles transported one behind the other and open at the top are moved below the sterilizing unit.
  • the number of sterilizing nozzles arranged one behind the other and the amount of hot air supplied in addition must be matched to the size of the bottle, transport speed, etc.
  • peracetic acid is used as a sterilizing agent, which is washed out again after the sterilization process.
  • the use of peracetic acid in addition to the associated odor nuisance also has other procedural problems and in particular does not meet the guidelines of the FDA (Federal Drug Association).
  • PET bottles can not be sterilized with the methods known, for example, from the sterilization of glass bottles, since they do not tolerate the temperatures prevailing there, the transfer of these known sterilization methods to the sterilization process for plastic bottles is ruled out.
  • the present invention is therefore based on the object, the above-mentioned method and the corresponding device in such a way and further, that the aforementioned disadvantages are avoided and in a structurally favorable manner continuously moving plastic bottles are sterilized efficiently and reliably.
  • a corresponding device is characterized by a first treatment station with a transport wheel, on the radially arranged bottle receiving stations are provided that above each bottle receiving space is lowered into the bottle nozzle for preheating and sterilization is provided that the nozzle has an inner tube and at least one outer tube and in that the tube nozzle formed by the inner tube is provided for rinsing with a sterilizing agent and the annular gap nozzle for hot air preheating formed by the inner tube and outer tube, a second treatment station with a transport wheel on which radially arranged bottle receiving positions are present, can be lowered into the bottle above each bottle receiving position
  • Pipe nozzle is provided for introducing cooling air and a third treatment station with a transport wheel on which radially arranged bottle receiving locations are present that above each bottle receptacle eplatzes a lowered into the bottle nozzle for introducing the hot air is provided for drying.
  • the invention has recognized that plastic bottles can also be sterilized by means of hot hydrogen peroxide, when the bottles are cooled to a temperature ⁇ 60 ° C immediately after spraying the hydrogen peroxide. In this way, the - inevitable - associated with the heat treatment shrinkage of the bottle at a value ⁇ 3 vol .-%. By the preheating of the inner surface of the container with hot air is reliably ensured that condensation of the sprayed sterilant on the container wall is almost impossible.
  • the temperature of the sterilizing agent at the nozzle outlet between 180 and 300 ° C, preferably about 190 ° C, and the temperature of the hot air at the nozzle exit during preheating 180 to 220 ° C, preferably about 200 ° C.
  • the used cooling air has room temperature. It goes without saying that sterile air is used for cooling.
  • the temperature of the hot air at the nozzle outlet is preferably in a range of 120 to 150 ° C, in particular at about 135 ° C.
  • Sterilizing agent between 3 and 7 Nm 3 / h, preferably at 5 Nm 3 / h, and the volume flow of the hot air required for preheating between 8 and 12 Nm 3 / h, preferably at 10 Nm 3 / h.
  • the volume flow of the cooling air and the hot air used for drying is between 10 and 15 Nir ⁇ 3 / h, preferably 12 Nm 3 / h.
  • a further embodiment of the invention provides that the time for preheating is 2 to 4 seconds, preferably 3 seconds. Sterilization requires 1 to 3 seconds, preferably 2 seconds, for cooling 2 to 4 seconds, preferably 3 seconds, and for drying 6 to 10 seconds, preferably 8 seconds. It can be seen that the total treatment duration of all three process steps is relatively short. By doing that, the individual steps run on separate, consecutively connected transport wheels, the different treatment time can be elegantly solved by different sized transport wheels with a correspondingly different number of bottle receiving stations at the same transport speed of the bottles.
  • the amount of sterilizing agent needed to sterilize a bottle is, for example, 250 ⁇ l / s with a bottle volume of 11.
  • a mixture containing hydrogen peroxide (H 2 O 2 ), for example H 2 O 2 / steam mixture is used as the sterilizing agent.
  • H 2 O 2 hydrogen peroxide
  • other sterilants can be used.
  • Plastic bottles provided with a screw cap can be sterilized by the method of the invention according to a preferred teaching of the invention by reversing the air escaping from the bottle opening during the individual treatment steps or the vapor mixture of air and sterilizing agent in order to sterilize the thread as well.
  • the "double nozzle" consisting of pipe nozzle and annular nozzle and the nozzle for drying have a deflector which is open at the bottom and engages in the bottle thread in the lowered position of the respective nozzle In this way, reliable sterilization is also provided for diverting the air flow to the bottle thread an externally located on the bottleneck external thread possible.
  • the clear cross-sectional areas of pipe nozzle and annular die are the same size.
  • each nozzle plunges into the bottle to a depth of 100 mm.
  • the inner tube at the nozzle outlet is longer than the outer tube to achieve on the one hand uniform heating of the bottle body during preheating and on the other hand sterilization from bottom to top.
  • the inner diameter of the inner tube is according to a further preferred embodiment of the invention 8 to 11 mm, preferably 10 mm, and that of the outer tube 16 to 20 mm, preferably 18 mm.
  • the diameter of the nozzle for introducing the cooling air is only in the range of about 4 to 8 mm.
  • Fig. 5 is a nozzle for introducing the hot air for drying in side view, partially broken, and
  • Embodiment of a provided for sterilizing the bottle thread diverter Embodiment of a provided for sterilizing the bottle thread diverter.
  • a nozzle 1 for preheating and sterilizing wherein a provided inside the nozzle 1 inner tube 2 for introducing a sterilizing agent and a concentrically arranged around outer tube 3 for introducing hot air through the annular gap between the inner tube 2 and outer tube 3 serve.
  • a downwardly open deflecting body 4 can be seen, which engages around the upper edge of the bottle neck in the processing position in order to also sterilize this edge.
  • the nozzle is lowered correspondingly deep inside the bottle.
  • a plurality of nozzles 1 is arranged radially on a transport wheel of a first treatment station, in accordance with the number of provided on the transport wheel bottle receiving stations. The continuously moving bottles are thereby transferred to the bottle receiving stations of the transport wheel, where there is then first the lowering of the nozzles 1 and the treatment by the process steps preheat and sterilize.
  • bottles are transferred to another transport wheel, not shown, on which, as described above, distributed over the circumference arranged nozzles 5 are provided, which, as shown in Fig. 4, can be formed as a simple pipe nozzle.
  • another transport wheel not shown, on which, as described above, distributed over the circumference arranged nozzles 5 are provided, which, as shown in Fig. 4, can be formed as a simple pipe nozzle.
  • the nozzle 5 is closed to its outlet, but it is also possible to provide over its circumference distributed openings (slots, holes or the like) to achieve a quick and more uniform cooling of the plastic bottle body.
  • Fig. 5 finally shows the nozzle which is used in the last treatment step for introducing the hot air for drying the bottle interior.
  • a plurality of nozzles 6 are arranged on a transport wheel, not shown, which are then moved continuously in rotation with the already sterilized plastic bottles, so that during this time the drying and thus the removal of the sterilizing agent can take place from the inside of the bottle.
  • a deflecting body 4 is provided, which also serves the Opening a plastic bottle F or a provided there external thread to dry reliably.
  • With designed as holes 7 openings on the circumference of the nozzle 6 can be optimally adapted to the bottle shape flow conditions.
  • the shape of the deflecting body can also be designed differently, there is a deflecting body 4 'is shown, which has a conically tapered edge to the emerging in the direction of the arrows from the annular gap between the nozzle and bottleneck Air (resp.
  • deflecting elements such as a web 8 shown in FIG. 6, can be present to specifically direct the air or the air / sterilant mixture onto the thread of a bottle F. conduct.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

L'invention concerne un procédé et un dispositif de stérilisation de bouteilles en plastique transportées les unes derrière les autres en position verticale avec leur ouverture dirigée vers le haut. Dans un premier temps, l'intérieur des bouteilles est stérilisé au moyen d'un agent de stérilisation, puis cet agent de stérilisation est éliminé. Pour que des bouteilles en plastique en mouvement continu puissent être stérilisées de manière fiable, le dispositif selon l'invention est caractérisé par des buses (1) de préchauffage et de stérilisation présentant chacune un tube intérieur (2) et au moins un tube extérieur (3), la buse tubulaire formée par le tube intérieur (2) servant à injecter un agent de stérilisation et la buse à interstice annulaire formée par le tube intérieur et le tube extérieur (3) servant à préchauffer les bouteilles avec de l'air chaud. Le dispositif selon l'invention comprend par ailleurs une pluralité de buses tubulaires (5) servant à introduire de l'air de refroidissement, ainsi qu'une pluralité de buses (6) servant à introduire l'air chaud pour le séchage, les buses (1, 5, 6) pouvant être plongées dans les bouteilles.
EP05806747A 2004-11-18 2005-11-17 Procede et dispositif de sterilisation de bouteilles en plastique en mouvement continu Withdrawn EP1814603A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004055780A DE102004055780A1 (de) 2004-11-18 2004-11-18 Verfahren und Vorrichtung zum Sterilisieren kontinuierlich bewegter Kunststoffflaschen
PCT/EP2005/012319 WO2006053745A1 (fr) 2004-11-18 2005-11-17 Procede et dispositif de sterilisation de bouteilles en plastique en mouvement continu

Publications (1)

Publication Number Publication Date
EP1814603A1 true EP1814603A1 (fr) 2007-08-08

Family

ID=35520132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05806747A Withdrawn EP1814603A1 (fr) 2004-11-18 2005-11-17 Procede et dispositif de sterilisation de bouteilles en plastique en mouvement continu

Country Status (3)

Country Link
EP (1) EP1814603A1 (fr)
DE (1) DE102004055780A1 (fr)
WO (1) WO2006053745A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006019136U1 (de) * 2006-12-18 2008-02-14 Krones Ag Vorrichtung zum Behandeln von offenen Gefäßen
DE102007020457A1 (de) * 2007-04-27 2008-10-30 Khs Ag Verfahren zum Sterilisieren von Behältern
US9120660B2 (en) 2007-04-27 2015-09-01 Khs Gmbh Method and apparatus for the cleaning of containers such as plastic bottles in a bottle filling plant or containers in a container filling plant
DE102007020458A1 (de) * 2007-04-27 2008-10-30 Khs Ag Verfahren zum Sterilisieren von Behältern
FR2923802B1 (fr) 2007-11-19 2012-08-31 Sidel Participations Dispositif de transport d'un corps creux, installation pourvue de tels dispositifs et procede de convoyage d'un corps creux solidarise a un tel dispositif.
DE102008039674A1 (de) * 2008-08-26 2010-03-04 Khs Ag Verfahren und Vorrichtung zur Sterilisierung von Behältern
DE102012206389A1 (de) * 2012-04-18 2013-10-24 Krones Ag Sterilisation von Verpackungsbehältern
WO2015170198A1 (fr) * 2014-05-09 2015-11-12 Wab Societa' A Responsabilita' Limitata Procédé de revêtement d'une paroi interne d'un récipient
DE102015103520A1 (de) * 2015-03-10 2016-09-15 Krones Ag Vorrichtung sowie Verfahren zum Behandeln eines Behälters mit einem Behandlungsmedium und Sterilisierungsvorrichtung mit solch einer Vorrichtung
DE102020130007A1 (de) 2020-11-13 2022-05-19 Krones Aktiengesellschaft Verfahren zum Herstellen von Kunststoffflaschen und Streckblasmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3809855A1 (de) * 1987-08-01 1989-02-09 Seitz Enzinger Noll Masch Verfahren zum aseptischen bzw. sterilen abfuellen von fluessigem fuellgut in behaelter sowie vorrichtung zum durchfuehren dieses verfahrens
DE4305478A1 (de) * 1993-02-23 1994-08-25 Tetra Laval Holdings & Finance Verfahren und Vorrichtung zum Sterilisieren von Packungen
DE19642987A1 (de) * 1996-10-18 1998-04-23 Tetra Laval Holdings & Finance Verfahren und Vorrichtung zum Sterilisieren und Befüllen von Verpackungsbehältern
US6752959B2 (en) * 2001-10-05 2004-06-22 Pepsico, Inc. High-speed, low temperature sterilization and sanitization apparatus and method
DE10217145A1 (de) * 2002-04-17 2003-10-30 Krones Ag Vorrichtung zum Behandeln von Verpackungsbehältern
DE20300522U1 (de) * 2003-01-14 2004-05-27 Salda, Luciano, Vignola Sterilisiervorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006053745A1 *

Also Published As

Publication number Publication date
DE102004055780A1 (de) 2006-05-24
WO2006053745A1 (fr) 2006-05-26

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