US20180170602A1 - Method for Sterilizing Packaged or Partially Packaged or Partially Sealed Consumable Items and Storage Containers and Outer Packages Used for This - Google Patents

Method for Sterilizing Packaged or Partially Packaged or Partially Sealed Consumable Items and Storage Containers and Outer Packages Used for This Download PDF

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Publication number
US20180170602A1
US20180170602A1 US15/746,185 US201615746185A US2018170602A1 US 20180170602 A1 US20180170602 A1 US 20180170602A1 US 201615746185 A US201615746185 A US 201615746185A US 2018170602 A1 US2018170602 A1 US 2018170602A1
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United States
Prior art keywords
container
treatment agent
consumable items
treatment
packaged
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Abandoned
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US15/746,185
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English (en)
Inventor
Hans-Willi Mainz
Michael Schreder
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SIG Combibloc Services AG
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SIG Technology AG
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Assigned to SIG TECHNOLOGY AG reassignment SIG TECHNOLOGY AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MAINZ, HANS-WILLI, SCHREDER, Michael
Publication of US20180170602A1 publication Critical patent/US20180170602A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • A61L2/208—Hydrogen peroxide
    • 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
    • B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
    • B65B5/06—Packaging groups of articles, the groups being treated as single articles
    • B65B5/061—Filled bags

Definitions

  • the invention first of all relates to a method for sterilising packaged or partially packaged or partially sealed consumable items, such as in particular plastic opening and/or closing elements for subsequent use in beverage or food packaging by means of a treatment agent having a disinfectant.
  • a storage container to accommodate a plurality of unarranged consumable items and an outer package to accommodate one or more such container/s are claimed.
  • the nature of the consumable items to be sterilised is extremely varied.
  • the invention is aimed in particular at those consumable items, that concern packaging or parts of packaging for food or the medical field.
  • the invention is explained in more detail in the following using as an example in particular plastic opening and/or closing elements for subsequent use in food or beverage packaging.
  • the invention therefore deals with the problem of sterilising already individually packed consumable items, such as for example tomatoes in a package, or consumable items where only one part has to be sterilised when packaged or sealed, without the packaged or sealed areas having to be opened.
  • consumable items are for example the sections of plastic opening and/or sealing elements, where for example the air space between the screw cap already applied and the opening element positioned below or also an area between a surface and a membrane placed on this, have to be sterilised.
  • opening and/or closing elements for beverage or food packaging
  • this is not intended to cover just the most widely-used re-sealable pouring elements, but any kind of opening aids and/or closures for such storage containers.
  • Filling is generally performed on what are known as filling machines, located at the filling plant and the receptacles to be filled must be transported from their place of manufacture to the filling plant site.
  • a device for sterilising receptacle closures, in which a plurality of cap-like closures are transported through several treatment zones and sterilised there through the application of H 2 O 2 vapour.
  • the sterilisation takes place by direct application to the opening and/or closing elements of disinfectant and a subsequent drying process, in order to reliably remove the H 2 O 2 again.
  • a device is in itself known for sterilising, filling and sealing a container having a fill opening.
  • the sterilisation of the opening and/or closing elements usually takes place immediately before they are attached to the receptacle to be filled, for example as is known from DE 10 2005 032 322 A1.a
  • the common opening and/or closing elements are generally injection moulded, their manufacture may take place at a different location, meaning that these elements also have to be transported to the filling plant.
  • Vegetative microorganisms are understood to be unicellular organisms able to multiply by cell division, likely to multiply in the contents (‘product’) of a package and in so doing alter the contents.
  • the term also covers the surviving forms of the unicellular organisms able to multiply, such as for example their spores.
  • microorganisms are usually highly resistant to changes in their surrounding environmental conditions. If microorganisms are unable to find an environment in which to metabolise and/or reproduce, some microorganisms have the possibility of switching to a spore stage.
  • microorganisms is intended to mean eukaryotes and prokaryotes, wherein the eukaryotes have a true cell wall and comprise algae, protozoa, fungi and slime mould, while prokaryotes cover the group of bacteria (see ‘Bergey's Manual of Determinative Bacteriology’, 8 th Edition, Baltimore: Williams & Wilkins, 1974).
  • prokaryotes in particular surviving forms are known such as for example spores.
  • An increase in these can be found for example, even after thermal or chemical treatment of raw materials for the manufacture of raw cardboard products in the latter because such treatment methods either kill the form of the microorganisms directly capable of multiplying or initiate switching to the spore form.
  • colony forming units per unit of weight or area CFU/g or (CFU/cm 2 ).
  • CFU/g colony forming units per unit of weight or area
  • CFU/cm 2 colony forming units per unit of weight or area
  • the determination of the number of colony forming units takes place by means of the specific multiplication of the microorganisms capable of dividing under suitable culture conditions. This generally takes place up to a colony size that can be counted with the unsupported eye.
  • Typical microbiological determination method standards are provided in ISO 8784-1 from 2005.
  • a reduction in the CFU/g or CFU/cm 2 will accordingly be used by the person skilled in the art as a measure of the effectiveness of a method of germ reduction and is often referred to as the disinfection rate.
  • the sterility rate for the number of packages produced is derived from this. For aseptically packaged foods it has frequently been the case here that as a maximum the contents of one in every 3,000 packages produced should be unsterile over the period up to the best before date, generally 12 months. More recent efforts by the applicant now aim for a maximum of one package for every 30,000 or even 50,000 packages produced.
  • U.S. Pat. No. 9,078,435 A1 a method is known for sterilisation of unpackaged containers, in which the container subsequently used in the hygiene sector, has a treatment agent having a disinfectant and a reaction accelerator placed in it and this is closed tight or sealed for a long time from a number of minutes to a number of days and the internal wall surfaces of the container are thereby disinfected. In this way the seal that seals the container is also disinfected.
  • the teaching of U.S. Pat. No. 9,078,435 A1 is aimed here at the disinfection of what are known as “bag-in-box” bags which, due to their subsequent use, must have very high barrier characteristics, and thus very low water- and gas-permeability.
  • the problem for the present invention is to arrange and develop the method mentioned and described above for sterilising packaged or partially packaged or partially sealed consumable items, such as in particular plastic opening and/or closing elements for subsequent use with beverage or food packaging, by means of a treatment agent having a disinfectant so that contamination of the consumable items with germ-forming spores is reliably excluded including in packaged or sealed areas. It is particularly desired to achieve a “long-term sterilisation”, in which the sterilisation of the treated consumable items takes place prior to their final use. For the example of the opening and/or closing elements this means that the sterilisation of these should be completed before the opening and/or closing elements are introduced into the aseptic area of a filling machine. If the filling machine has an aseptic area, within the filling machine further disinfection of the opening and/or closing elements can take place.
  • a consumable item to be sterilised or an area of a consumable item to be sterilised is disposed in a first sealed environment, such that a plurality of such individually packaged consumable items or sealed areas of consumable items is stored for a predetermined time in a storage container and in that the inside of the storage container is treated with a predetermined quantity of the treatment agent so that through diffusion of the treatment agent the packaged consumable items or sealed areas of the consumable items are sterilised.
  • a corresponding storage container which in the context of the present specification is not to be considered as a consumable item, having the features of the preamble of Claim 14 solves the problem in that the material for the storage container is plastic, wherein the storage container is designed as a bag which after filling with consumable items and subsequent treatment is sealed and stored in a subsequently sealed outer packaging.
  • An outer package according to the preamble of Claim 20 that can be used for this purpose, in order to solve the problem, is characterised in that cardboard, in particular corrugated cardboard, is used as material for the outer package, so that an outer carton with closable flaps results, which are folded down and suitably secured in order to close the outer carton. This allows secure transport of the treated consumable items as far as the place of use.
  • the treatment of the individual opening and/or closing elements is performed mechanically, wherein preferably a spray nozzle is used. Spraying preferably takes place without air, wherein the storage container should then be immediately closed. It is also conceivable, however, for the treatment to be performed manually. In any event, the treatment should as far as possible take place immediately after manufacture of the consumable items, and in the example therefore after the cooling of the opening and closing elements following the injection moulding process, in order to avoid contamination from the outset.
  • the treatment agent used is hydrogen peroxide (H 2 O 2 ) and the concentration of the treatment agent is between 20% and 50%, preferably 35%.
  • the amount of the respective treatment with the treatment agent is, depending on the volume and size of the surface of the consumable items to be sterilised, between 0.5 ml and 2 ml.
  • the actual quantity required here can be easily determined by comparative trials.
  • the opening and/or closing element it was found that a dosage of one millilitre is sufficient for sterilising 1,200 opening and/or closing elements.
  • This “standard dosing” is matched to the volume ratio of the standard carton size of the outer packaging, which in the example is 56 litres.
  • the overall proportion of the volume of the opening and/or closing elements here is 14 litres, so that the maximum free air volume is 42 litres.
  • Standard dosing means a normal dosing, since an overdose leads to the formation of condensate in the storage container, which must be avoided at all costs and an underdose is insufficient to reliably sterilise all the consumable items contained in the storage container. Obviously, the dosing quantity used must be adapted for differing volumes.
  • the normal dosing is approximately 1 ml/56 1. A deviation of + or ⁇ 25% is still within the normal dosing range, however.
  • the proportion of the volume of the consumable items here is 1 ⁇ 4 of that of the storage container or the volume enclosed by the outer carton.
  • the duration of the exposure to the treatment agent in the storage container is preferably between 12 hours and 21 days, particularly preferably it is between 24 hours and 7 days. This ensures that in the time taken for transport between leaving the manufacturer and arrival at the customer's full sterilisation has taken place, so that the, for example, opening and/or closing elements can be introduced more or less immediately after being unpacked from the storage container into the aseptic area of a filling machine.
  • the treatment time is primarily determined by the size of the surfaces to be sterilised and by the strength and the material characteristics of the films used in order to achieve adequate diffusion.
  • the method is preferably actually free from active removal of the treatment agent.
  • the treatment agent is not actively removed from the sterilised unpackaged consumable items, such as in particular plastic opening and/or closing elements for subsequent use with drink or food packaging. While the removal without residue of disinfectants on areas of food packaging in contact with the product is a condition that must be met, it has surprisingly been found that the treatment agent containing disinfectant fully diffuses within the exposure time and the remaining residues fall below the legally permitted levels even on relatively smooth surfaces. The treatment agent therefore remains, as it were, on the treated consumable items, but its amount and effect fall over the stated time to such an extent that the requirements concerning contamination by treatment agents of surfaces of consumable items in contact with food can easily be met.
  • the treatment agent is free from a reaction accelerator. It may at first seem illogical for the low quantity of disinfectant used not to contain a reaction accelerator, in the way that, for example, formic acid acts for H 2 O 2 . But it has surprisingly been shown that the atmosphere that forms is sufficient to reliably sterilise the consumable items exposed to it, even if a reaction accelerator is dispensed with. Furthermore, the sterilising atmosphere can also be effective over a long period. Reaction accelerators are in fact unstable and have a maximum effectiveness of 12 hours.
  • the period of effectiveness of the reaction accelerator is also limited.
  • the actual period of effectiveness is limited to a maximum of 12 hours. It has been shown, on the other hand, that the reducing capability of the sterilising atmosphere settling on the consumable items is much better when such a reaction accelerator is dispensed with.
  • a further form of the invention provides that a treatment agent is used that contains a dye and causes a discoloration of the treated storage container, so that it is optically detectable and if necessary it can be checked mechanically that all filled and treated storage containers have been treated with treatment agent.
  • a further form of the invention provides that the specified quantity of consumable items is measured in individual parts and/or individual modules and that the quantity of individual parts and/or individual modules is ⁇ 100, in particular ⁇ 500, quite particularly ⁇ 800.
  • the method can be applied particularly effectively. It has surprisingly been shown here that the individual parts, in particular the individual opening and/or closing elements, can be fully sterilised even in the stated quantity ranges. Tests have actually demonstrated that the number of individual parts can be even higher. Depending on the volume of the storage container of approximately 56 litres, the 1,200-1,500 individual parts, in particular individual opening and/or closing elements, that are normal these days in food packaging, in particular aseptically manufactured beverage packaging, with package volumes of between approximately 100 ml and approximately 2,000 ml, can be sterilised.
  • the method is free from positioning of the consumable item or consumable items.
  • the consumable items are for example filled together as bulk goods in the storage container or arrive directly or indirectly at the exit of a production machine in the storage container.
  • the plastic material of the storage container has a predetermined permeability.
  • a further teaching of the invention provides that as storage containers, plastic containers in polyethylene (PE) or polyamide (PA) are used.
  • PE polyethylene
  • PA polyamide
  • a treatment carrier for example a strip of felt, treated with a sufficient quantity of sterilisation agent, in to the storage container.
  • the outer package on its inside with one or more treatment carriers, in order to achieve the desired long-term sterilisation during transport.
  • the treatment carriers can be inserted or bonded in the outer carton.
  • FIG. 1 a perspective view of an empty storage container in an outer package
  • FIG. 1A a perspective view of an opening or closing element for drink packaging from below;
  • FIG. 2 the filled storage container from FIG. 1 ;
  • FIG. 3 the closed storage container from FIG. 2 in the open outer package
  • FIG. 4 the closed outer package
  • FIG. 5 a further embodiment concerning application of the sterilisation agent.
  • FIG. 1 shows a storage container 1 designed as a plastic bag, inserted in an open outer carton 2 so that its top edge can be guided over the flaps of the outer carton 2 . In this way contact between the consumable items 3 to be filled in the storage container 1 and the outer carton can be avoided. As consumable items 3 into the embodiment shown and to this extent preferred, opening and/or closing elements for subsequent use with beverage or food packaging are shown.
  • FIG. 1A illustrates how an opening or closing element 3 not individually packed can also have an area which can be sealed with a film F and an inside which nevertheless has to be sterilised, in the example the air gap between screw cap and membrane.
  • FIG. 2 shows the storage container 1 filled with the abovementioned consumable items 3 , in which for sterilisation purposes a predetermined quantity of the treatment agent H 2 O 2 is introduced.
  • the storage container 1 is then closed, as shown in FIG. 3 and the outer carton 2 is finally closed as shown in FIG. 4 .
  • Non-immediate indirect sterilisation of the consumable items takes place by diffusion of the liquid treatment agent, which has long enough to act on the packaged or partially packaged or partially sealed areas of consumable items.
  • FIG. 5 shows a further possibility for introducing the sterilisation agent, in which this takes place by means of an inserted sheet 4 , to which various treatment carriers 5 , treated with a sterilisation agent, have been applied.

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  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Packages (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
US15/746,185 2015-07-23 2016-07-20 Method for Sterilizing Packaged or Partially Packaged or Partially Sealed Consumable Items and Storage Containers and Outer Packages Used for This Abandoned US20180170602A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102015112034 2015-07-23
DE102015112034.8 2015-07-23
DE102015116534.1 2015-09-30
DE102015116534.1A DE102015116534A1 (de) 2015-07-23 2015-09-30 Verfahren zum Sterilisieren von verpackten oder teilverpackten bzw. teilweise verschlossenen Gebrauchsgütern sowie dazu verwendbare Sammelbehälter und Umverpackungen
PCT/EP2016/067242 WO2017013149A1 (de) 2015-07-23 2016-07-20 Verfahren zum sterilisieren von verpackten oder teilverpackten bzw. teilweise verschlossenen gebrauchsgütern sowie dazu verwendbare sammelbehälter und umverpackungen

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US15/746,185 Abandoned US20180170602A1 (en) 2015-07-23 2016-07-20 Method for Sterilizing Packaged or Partially Packaged or Partially Sealed Consumable Items and Storage Containers and Outer Packages Used for This
US15/746,156 Abandoned US20180194501A1 (en) 2015-07-23 2016-07-20 Method for Sterilizing Unpackaged Consumable Items and Storage Containers and Outer Package Used for This

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US (2) US20180170602A1 (es)
EP (2) EP3325355B1 (es)
JP (2) JP2018520960A (es)
CN (2) CN107848650B (es)
BR (2) BR112018001294A2 (es)
DE (2) DE102015116534A1 (es)
ES (2) ES2789549T3 (es)
PL (2) PL3325355T3 (es)
WO (2) WO2017013149A1 (es)

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USD850253S1 (en) * 2017-07-27 2019-06-04 JLS Automation Packaging container

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Publication number Priority date Publication date Assignee Title
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USD850253S1 (en) * 2017-07-27 2019-06-04 JLS Automation Packaging container

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JP2018520960A (ja) 2018-08-02
PL3325355T3 (pl) 2020-07-27
BR112018001294A2 (pt) 2018-09-11
BR112018001218A2 (pt) 2018-09-11
EP3325356A1 (de) 2018-05-30
EP3325356B1 (de) 2019-11-06
WO2017013149A1 (de) 2017-01-26
CN107848650B (zh) 2019-12-20
DE102015116536A1 (de) 2017-01-26
BR112018001218B1 (pt) 2022-04-05
PL3325356T3 (pl) 2020-03-31
CN107848650A (zh) 2018-03-27
WO2017013149A9 (de) 2017-03-30
CN107848651A (zh) 2018-03-27
ES2789549T3 (es) 2020-10-26
DE102015116534A1 (de) 2017-01-26
US20180194501A1 (en) 2018-07-12
WO2017013150A1 (de) 2017-01-26
JP2018520959A (ja) 2018-08-02
EP3325355A1 (de) 2018-05-30
ES2759500T3 (es) 2020-05-11
CN107848651B (zh) 2019-12-27
EP3325355B1 (de) 2020-03-04

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