DE102005052826A1 - Method and device for sterilizing an undeformed, cycle-conveyed packaging material web - Google Patents

Method and device for sterilizing an undeformed, cycle-conveyed packaging material web

Info

Publication number
DE102005052826A1
DE102005052826A1 DE200510052826 DE102005052826A DE102005052826A1 DE 102005052826 A1 DE102005052826 A1 DE 102005052826A1 DE 200510052826 DE200510052826 DE 200510052826 DE 102005052826 A DE102005052826 A DE 102005052826A DE 102005052826 A1 DE102005052826 A1 DE 102005052826A1
Authority
DE
Germany
Prior art keywords
material web
packaging material
characterized
pb
sterilant
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.)
Ceased
Application number
DE200510052826
Other languages
German (de)
Inventor
Ortwin Fink
Peter Gieske
Ulrich Steinhauser
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.)
Hassia Verpackungsmaschinen GmbH
HASSIA VERPACKUNG AG
Original Assignee
Hassia Verpackungsmaschinen GmbH
HASSIA VERPACKUNG 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 Hassia Verpackungsmaschinen GmbH, HASSIA VERPACKUNG AG filed Critical Hassia Verpackungsmaschinen GmbH
Priority to DE200510052826 priority Critical patent/DE102005052826A1/en
Publication of DE102005052826A1 publication Critical patent/DE102005052826A1/en
Application status is Ceased legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08Radiation
    • A61L2/10Ultra-violet radiation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02Sterilising, e.g. of complete packages
    • B65B55/04Sterilising wrappers or receptacles prior to, or during, packaging
    • B65B55/10Sterilising wrappers or receptacles prior to, or during, packaging by liquids or gases
    • B65B55/103Sterilising flat or tubular webs

Abstract

The invention relates to methods and a device for sterilizing eienr undeformed, in cycles promoted packaging material web (PB), which is acted upon by a sterilizing agent by means of an application element, then exposed to a germicidal radiation and fed under sterile conditions of further processing.
According to the invention it is provided that hydrogen peroxide used in the form of a weak, aqueous solution in the order of 3 to 7% as sterilizing agent and that the sterilant solution with respect to the section area to be occupied (F) volume controlled in the thinnest, lying in the lower μ range Layer is applied by spraying at least on the product side of the packaging material web (PB).
This application is carried out advantageous in line style over the whole area summarily.

Description

  • The The invention relates to a method and a device for sterilization an undeformed, cyclically promoted packaging material web, the subjected to a sterilizing agent by means of an application element, subsequently a germicidal Irradiation exposed and under sterile conditions of further processing supplied becomes.
  • The sterilization treatment of packaging material webs of suitable material, such as plastic, metal foil or combinations thereof, is well known and in use, so that there is no special printed evidence in this regard. The measures and means for the sterilization of packaging materials ultimately also depending in each case over a certain period of time in a package to be kept sterile, especially intended for consumption contents are varied and range for the packaging material, for example. In individual or combined application of temperature treatments on steam and UV light exposure to the use of hydrogen peroxide in liquid or vaporized or misted form, for example. According to DE 27 03 524 ,
  • Since more and more stringent requirements are made with regard to still acceptable bacterial load on foodstuffs, the tendency in practice is to a greater extent in particular a combined use of applied H 2 O 2 solution as sterilizing agent with subsequent germicidal irradiation, although peroxide is toxic in itself , See, for example, the EP 0 919 246 B1 , which, in the case of applied UV irradiation, depends on the object of the DE 42 09 838 only un thereby distinguishes that instead of hot water, a peroxide solution is used, in both cases before the irradiation plentifully applied by immersion water or sterilizing agent must be scraped off by air jets in a sense to the one, the subsequent germicidal irradiation good effect and, when using peroxide solution, to ensure that no or only within permissible limits permissible residues of peroxide are present in the filled packaging.
  • The sterilizing effect on the one hand of peroxide and on the other hand UV irradiation is known since at least the beginning of the eighties of the last century according to US-PS 4,366,125, in which case the UV irradiation takes place before the drying of the packaging material web and. the previous Sterilmittelauftrag in a sense untargeted in a mist application chamber, which is directed with its web-side open cross-section against the packaging material web. Incidentally, in this sterilizing apparatus, the packaging material web to be sterilized is treated in a continuous pass, that is, uncalibrated in an H 2 O 2 mist chamber and rolled up again after UV irradiation and subsequent drying in a collecting chamber to be kept sterile, from which the sterile roll must be removed. in order to be able to further process them, for example, on a packaging machine under sterile conditions. As the sterility of the sterile roll during transfer and further processing on eg. A packaging machine is taken into account, it must remain an open question.
  • With regard to the fact that to effect a subsequent UV irradiation, the applied H 2 O 2 should be present only in the smallest possible amount on the packaging material, this is on the already mentioned above EP 0919246 referred, therefore, mainly with the removal of a continuous bath or by spraying excess, apparently on the principle Much brings much, the continuously promoted packaging material web applied H 2 O 2 solution deals to the subsequent UV irradiation as optimal as possible to the effect kom and, at contemplated concentrations of 20 to 40% sterilant solutions, to ensure that as little toxic H 2 O 2 as possible is introduced into the packages. For the removal of Sterilmittelüberschusses is a special, in the EP 0919246 so-called acceptance device provided, which effectively represents a chamber-like hot air knife with which the excess of sterilant on the chamber continuously passing through the packaging material web is blown off and discharged from the chamber.
  • Apart from the use of basically aqueous H 2 O 2 solutions for sterilization purposes in the field of use of interest for the purpose of certain filling contents, one has, of course, a free hand with regard to their concentration approaches, ie taking into account the abovementioned EP 0 919 246 and here to be mentioned in addition US 4,289,728 In general, solution levels of 0.01 to 50% are contemplated in the art, with the question of the sterile agent lot remaining open and, on the other hand. regarding the mentioned EP 0 919 246 in this regard, as mentioned above, can only be seen to apply the sterilizing agent by bath run, then the inevitable Sterilmittelüberschuß by air knife. to remove by blowing off and in the US 4,289,728 the question of the quantity order or the layer thickness is left open at all.
  • The invention has for its object to provide not only for a more economical consumption of the sterilant solution itself, but equally for the lowest possible proportion of toxic to itself H 2 O 2 in the sterilant solution and this associated with the proviso, from the outset as possible to achieve thin order of the sterilant solution, and that, which will be explained in more detail, in particular with regard to the special case of sterilization of interest not only an undeformed, but also promoted in the step cycle packaging material web.
  • These Task is with regard to the procedure by the in the license plate of claim 1 cited Characteristics or method steps solved. In this regard, advantageous developments arise after the closer to be explained Dependent claims.
  • In spite of the provisos on the one hand, from the outset, to a certain extent extremely thin, that is, in the lower μ range (<100 μ) lying Sterilizing agent layer leading area-related quantity order and on the other hand, one of them almost in contradiction (low concentration leads to the idea to balance this by putting more in quantity) Sterilmittelkonzentration in the specified order results, as Trials have shown, surprisingly one for too especially the food sector absolutely satisfactory and sufficient Germ kill rate. In this regard, can only be suspected that through the gossamer Sterilization agent on the one hand existing germs for the subsequent UV irradiation better accessible per se are and that on the other hand the very thin applied Layer, measured by the average dimensions of germs in the order of magnitude from about 1 to 10 μ, sufficient thick to capture the germs.
  • This is advantageous on the one hand with a correspondingly economical consumption of H 2 O 2 , and on the other hand, the wafer-thin applied to the packaging material layer layer of Sterilittelellösung remain on this, since the low H 2 O 2 concentration and also. the small amount remain within the permissible limits of what may remain in the filled packaging or may still be present. Moreover, if this should require special requirements, there is nothing to prevent the wafer-thin layer from drying on the web before the subsequent UV irradiation.
  • A surplus elimination of too much or too much applied sterilant So is not in the process of the invention required.
  • By deep-drawing and ultimately also tubular bag packaging machines, the packaging material webs are conveyed in a step-cycle, ie, a machine running and an upstream Sterilisationsmittel-Beaufschlagungszone continuous packaging material web this would also happen in step-clock, but what, as readily imaginable and so far known, so far apparently unnoticed, contrary to the order of a continuous uniformly uniformly thin H 2 O 2 layer, as it inevitably occurs at clocked Bahnstillstand between the conveying acts in permanent permanent Sterilmittelaufsprühung on the packaging material to areas reinforced Sterilmittelauftrages. In this regard, the inventive method has proved to be particularly advantageous because even then thin yet thin Sterilisationsmittel overlap strips on the clocked continuous packaging material result due to the extremely thin sterilizing agent order, which, as has been shown, on the one hand no much higher burden represent the packaging with H 2 O 2 . and on the other hand in an approximately subsequent Trockrockphase be detected and dried with ease. Avoidable would be those with clocked promotion of the packaging material web resulting overlapping areas only by interrupting the Sterilmittelzufuhr clocked accordingly, but with respect to the anyway low applied sterile agent quantities, if at all, would be extremely difficult to implement.
  • Around the extremely thin, homogeneous layer application (comparable with a misted window) to reach the packaging material web, it has proven to be expedient not for one flat Order to worry about how he is passing through the packaging material web by a dip or even when passing through a mist or vapor deposition chamber, but that over uniformly distributed sterilizing agent throughout the entire width of the packaging material web in Strichmanier nationwide aufummierend apply.
  • The inventive method and to its implementation required sterilization device are described below the drawing of exemplary embodiments explained in more detail.
  • It shows
  • 1 highly schematic side view of a thermoforming packaging machine with integrated sterilization device;
  • 2 also very schematically the sterilization device;
  • 3 in plan view, a piece of the packaging material web to be sterilized in Taktschrittteilung and
  • 4 one of the 3 Corresponding representation of the packaging material web with modified spray direction.
  • following is on the here in particular interest step-step promotion the packaging material web is referenced by a thermoforming machine, although the process also readily in a continuous promotion the packaging material web is applicable.
  • The sterilization device SE for carrying out the method on packaging machines, with which therefore a packaging material web PB in the step-stroke of a stock roll holder 1 deducted and by their in a sterile tunnel 2 located processing stations 3 is still funded by an applicator unit 4 with sterilant supply 5 , and an irradiation station 7 In the special case, as mentioned above, a drying station 6 can be upstream.
  • The packaging material web PB to be sterilized is in step-by-step from the stock roll holder 1 pulled off and through in a sterile tunnel 2 located processing stations 3 (Form (FS), filling (F) and closing (SS)) of the example. FFS packaging machine shown promoted.
  • The case of self-interest sterilization device SE is in the illustrated Ausführungsbei game according to 1 between the stock roll holder 1 and the forming station FS, irrespective of whether the sterilizing device is a step-by-step adjusted feeding device for the packaging machine or a machine part integrated in the packaging machine from the outset.
  • In order to carry out the method according to the invention, is for the in 1 a total of dash-dotted lines illustrated sterilization SE total significantly that the sterilization device between the packaging material supply roll holder 1 and the forming station FS, such as thermoforming station, tube forming station or the like. the packaging machine is arranged; that further before the post-treatment station 7 arranged application unit 4 from one of the width B of the packaging material web PB or at least one clock step length L corresponding, connected to a Sterilmittelverdampfungs- or misting chamber K and directed against the packaging material web PB, at least one broad jet effecting application element 8th is formed and that finally in the sterilant supply 5 of the applicator 4 a sterilant flow regulator 9 is arranged.
  • What is the mission element 8th is concerned, this is in the form of a slot die 8th' formed, which may be composed for the purpose of uniform distribution of the sterilizing agent in the nozzle of a plurality of smaller slot dies or with inner small distribution webs 8th'' is provided. With regard to the small amount of sterile medium solution to be differentially applied, the opening slit or the slits are only a fine outlet gap, for example of the order of only 0.3 mm and below.
  • The adjustable depending on the conveying speed of the packaging material PB sterilizer flow regulator 9 ensures that as far as possible exactly the amount of sterilant discharged and applied to the packaging material web, which is required for the formation of a thin layer of sterile medium solution in the aforementioned aforementioned order of magnitude, to the actual application unit 4 Of course, there are still the supply means for the coming to use, dilute H 2 O 2 solution and a transport medium, for which one of the evaporation or misting chamber K, for example. Pressure-operated injector 11 for combining the sterile medium solution and a gaseous carrier medium, for example sterile air, is connected upstream.
  • The Sterile agent supply to the wide slit nozzle takes place continuously during the Run the whole length one rolled up stationary packaging material web, which due to clocked promotion of the packaging material due the train stops to the aforementioned narrow overlap strips leads.
  • Regarding the treatment station following the sterile agent application station 7 is concerned, this is with one or more UV lamps 7 ' stocked. This treatment station 7 can gegf. and, as indicated by dashed lines, from the sterile tunnel 2 the processing stations 3 be covered with the relevant FFS machine, so that the last phase of sterilization (final germ killing) already takes place in sterile atmosphere.
  • In order to comply with the advantageous proviso, namely exposing the packaging material web PB to a germ-attacking pre-irradiation prior to the application of sterilizing agent, it is possible to place between the supply-roll holder 1 and the sterilization device SE an at least germ-damaging Vorbestrahlungsstation (not shown) may be arranged, for which also a suitable UV emitter comes into consideration. A pretreated packaging material web PB thus advantageously gets under with its germs, which to some extent have already been damaged sublethally the effect of the then thinnest layer and thus sparingly sprayed sterilizing agent.
  • In the already mentioned 3 is a packaging material web section with dash-dot conveyor clock step division TS is provided, with sections I-IV, each having a clock step length L. It can be left undecided whether in practice between the sections I to IV are still one or more sections. All treatments on the sections I to IV of the still undeformed packaging material web PB occur simultaneously, wherein the section I is exposed in this embodiment, a germ-attacking pretreatment by UV irradiation. A section II pretreated in this way is transported successively in the direction of arrow P by means of the slot die 8th in the sense of the thin lines DL from the leading dot-dash line to the subsequent dash-dotted line LI volume controlled with sterilant in the thinnest layer coverage and runs in a special case, while becoming Section III, under the (if available) heat radiator 6 and then passes under the treatment station dried 7 in which the final germ killing is done by UV light. Apart from the section II with its Sterilmittelauftrag can for irradiation and gegf. Also drying treatments also several lengths L be detected. The several mentioned above, right behind the nozzle 8th Incidentally, resulting overlapping areas UB are in 3 indicated by cross-hatching.
  • The occupation of the sections with the sterilizing agent solution does not necessarily have to be carried out as described in the direction of extent or conveying direction of the packaging material web, which is preferred, however, since in the case of a stationarily arranged slot die 8th the conveying movement of the web is utilized.
  • But it is also possible, with appropriate width design of the task item 8th to arrange this to the packaging material web back and forth transversely adjustable and this at each standstill (see 4 ) of the railway over the relevant section. The spraying process would also be uninterrupted in both the outward and the return adjustment.
  • Incidentally, could be in such, somewhat more expensive equipment-demanding embodiment, since the Auftragseleelement 8th has to be moved clock-adapted, avoid overlap strip advantageous at all, if on the one hand, the width B of the Auftragselememntes 8th exactly on a cycle step length L and the transverse movement on the downtime of the packaging material web would be parked.
  • Apart from that, in such an embodiment also the advantageous possibility, the travel of the applicator element 8th for its back and forth movement to be measured so that both edges R of the packaging material, as shown, are slightly run over, so that the maintained thereby wide beam is not used, ie, in the waiting position for the respective sequence adjustment the edges can not burden with sterilizing agent. Non-solubilizing sterilant solution can be collected and discharged in collectors.
  • Such an application across the packaging material web or conveying direction would also be possible with the web moved in the step cycle, with a coating surface oriented diagonally to the conveying direction. However, this would have the task element 8th be reset with interrupted sterile agent supply and standstill of the web, as would otherwise result from the sterilant unoccupied, triangular track surfaces. So this could also be considered, if you want to operate the mentioned greater equipment complexity and also a greater control effort.

Claims (20)

  1. A method for sterilizing an undeformed, in cycles promoted packaging material web (PB), which is subjected to a sterilizing agent by means of an application element, then subjected to germicidal radiation and fed under sterile conditions of further processing, characterized in that the sterilant hydrogen peroxide in the form of a weak, aqueous solution used in the order of 3 to 7%, and that the sterilant solution is applied in quantity in the thinnest, in the lower μ-range layer at least on the product side of the packaging material web (PB) by spraying with respect to the section area to be occupied (F),
  2. Method according to claim 1, characterized in that that the Sterilant solution with a layer thickness of the order of magnitude of <100 μ applied becomes.
  3. Method according to claim 1 or 2, characterized that the Order of the sterilizing agent solution in Strichmanier summed up nationwide carried out becomes.
  4. Method according to one of claims 1 to 3, characterized that the thin, on the packaging material web located layer of the sterilizing agent before the germicidal Irradiation is subjected to drying.
  5. Method according to one of claims 1 to 4, characterized in that the sterilant solution is nebulized with sterile hot air and applied with this on the packaging material web (PB).
  6. Method according to one of claims 1 to 5, characterized that the Packing material web (PB) prior to exposure to the sterile medium solution germ-damaging is exposed to pre-irradiation.
  7. Method according to one of claims 1 to 6, characterized that the Packing material web (PB) prior to exposure to the sterile medium solution cooling is subjected.
  8. Method according to one of claims 1 to 7, characterized that for the germicidal irradiation the packaging material web (PB) UV light is used.
  9. Method according to one of claims 1 to 8, characterized that this spray on the sterilant solution in the conveying direction the packaging material web (PB) is effected.
  10. Method according to one of claims 1 to 8, characterized that this spray on the sterilant solution transverse to the conveying direction the packaging material web (PB) is effected.
  11. Sterilization device for carrying out the method on packaging machines, with which a packaging material web (PB) from a stock roll holder ( 1 ) and through their in a sterile tunnel ( 2 ) processing stations ( 3 ), wherein the packaging machine upstream sterilization device (SE) from an application unit ( 4 ) with sterilant supply ( 5 ) and at least one post-treatment station ( 7 ), characterized in that the sterilization device between the packaging material web roll holder ( 1 ) and the forming station (FS), such as thermoforming station, tube forming station or the like. the packaging machine is arranged; that before the post-treatment station ( 7 ) arranged Auflagaggregat ( 4 ) from one of the width (B) of the packaging material web (PB) or at least one clock step corresponding to a Sterilmittelverdampfungs- or misting chamber (K) connected and directed against the Packstaffbahn (PB), at least one broad jet effecting application element ( 8th ) and that in the sterilant supply ( 5 ) of the applicator unit ( 4 ) a sterilant quantity regulator ( 9 ) is arranged.
  12. Device according to claim 11, characterized in that the applicator element ( 8th ) in the form of a slot die ( 8th' ) is trained.
  13. Device according to claim 12, characterized in that the slot die ( 8th' ) of several smaller slot dies ( 8th' ) is composed.
  14. Device according to one of Claims 11 to 13, characterized in that the application element (15) dimensioned for the detection of at least one cycle step length (L) 8th ) is arranged to move back and forth across the packaging material web (PB).
  15. Device according to one of Claims 11 to 14, characterized in that the aftertreatment station (in the form of a UV radiator directed against the packaging material web) ( 7 ) a heat treatment station ( 6 ) in the form of a heat radiator directed against the packaging material web (PB) ( 6 ' ) is arranged upstream.
  16. Device according to one of claims 11 to 15, characterized in that in or before the evaporation or misting chamber (K) an injector ( 11 ) to. Merging the sterilant solution and a gaseous carrier medium is arranged.
  17. Device according to one of claims 11 to 16, characterized in that the heat radiator ( 6 ' ) and the UV lamp ( 7 ' ) with a suction cover ( 12 ) are provided.
  18. Device according to claim 17, characterized in that the applicator element ( 8th ) immediately before the access of the packaging material web (PB) to the cover ( 12 ) is arranged.
  19. Device according to one of claims 11 to 19, characterized in that between the stock roll holder ( 1 ) and the applicator unit ( 4 ) an at least germ-damaging pre-irradiation station ( 13 ) is arranged.
  20. Device according to one of claims 11 to 19, characterized in that in front of the applicator unit ( 4 ) Facilities ( 14 ) are arranged for cooling the incoming packaging material web (PB).
DE200510052826 2005-11-05 2005-11-05 Method and device for sterilizing an undeformed, cycle-conveyed packaging material web Ceased DE102005052826A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200510052826 DE102005052826A1 (en) 2005-11-05 2005-11-05 Method and device for sterilizing an undeformed, cycle-conveyed packaging material web

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510052826 DE102005052826A1 (en) 2005-11-05 2005-11-05 Method and device for sterilizing an undeformed, cycle-conveyed packaging material web
PCT/DE2006/001902 WO2007051448A1 (en) 2005-11-05 2006-10-28 Method and device for sterilizing an undistorted packaging material web conveyed in a timed manner

Publications (1)

Publication Number Publication Date
DE102005052826A1 true DE102005052826A1 (en) 2007-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE200510052826 Ceased DE102005052826A1 (en) 2005-11-05 2005-11-05 Method and device for sterilizing an undeformed, cycle-conveyed packaging material web

Country Status (2)

Country Link
DE (1) DE102005052826A1 (en)
WO (1) WO2007051448A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911640A (en) * 1972-08-11 1975-10-14 Tetra Pak Dev Method for the packing under aseptic conditions of sterile goods into containers
DE3028208A1 (en) * 1980-07-25 1982-02-18 Bosch Gmbh Robert Plastics beakers blanks strip sterilisation - by continuous spraying of reagent, heating, cooling and drying
US4366125A (en) * 1979-11-27 1982-12-28 Dai Nippon Insatsu Kabushiki Kaisha Sterilization apparatus and process utilizing synergistic effect of combining hydrogen peroxide and ultra-violet-ray sterilization
DE19854804A1 (en) * 1998-11-27 2000-05-31 Hassia Verpackung Ag Method and apparatus for germ reduction and purification of webs of packaging material for the production of packaging

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09254936A (en) * 1996-03-27 1997-09-30 Nippon Tetrapack Kk Method and apparatus for sterilizing food packaging container
US6039922A (en) * 1997-08-15 2000-03-21 Tetra Laval Holdings & Finance, Sa UV radiation and vapor-phase hydrogen peroxide sterilization packaging

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911640A (en) * 1972-08-11 1975-10-14 Tetra Pak Dev Method for the packing under aseptic conditions of sterile goods into containers
US4366125A (en) * 1979-11-27 1982-12-28 Dai Nippon Insatsu Kabushiki Kaisha Sterilization apparatus and process utilizing synergistic effect of combining hydrogen peroxide and ultra-violet-ray sterilization
DE3028208A1 (en) * 1980-07-25 1982-02-18 Bosch Gmbh Robert Plastics beakers blanks strip sterilisation - by continuous spraying of reagent, heating, cooling and drying
DE19854804A1 (en) * 1998-11-27 2000-05-31 Hassia Verpackung Ag Method and apparatus for germ reduction and purification of webs of packaging material for the production of packaging

Also Published As

Publication number Publication date
WO2007051448A1 (en) 2007-05-10

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