DE3039437A1 - Sterilising packaging material with conc. ortho-phosphoric acid - pref. by passing through phosphoric acid bath and then removing residue - Google Patents

Sterilising packaging material with conc. ortho-phosphoric acid - pref. by passing through phosphoric acid bath and then removing residue

Info

Publication number
DE3039437A1
DE3039437A1 DE19803039437 DE3039437A DE3039437A1 DE 3039437 A1 DE3039437 A1 DE 3039437A1 DE 19803039437 DE19803039437 DE 19803039437 DE 3039437 A DE3039437 A DE 3039437A DE 3039437 A1 DE3039437 A1 DE 3039437A1
Authority
DE
Germany
Prior art keywords
phosphoric acid
packaging material
h3po4
pref
conc
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Withdrawn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
DE19803039437
Other languages
German (de)
Inventor
Norbert Prof. Dr. 7057 Winnenden Buchner
Siegfried 7054 Korb Maile
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.)
Maile Siegfried Dipl-Troph Dipl-Lebensmitteli
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19803039437 priority Critical patent/DE3039437A1/en
Publication of DE3039437A1 publication Critical patent/DE3039437A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/26Phosphorus; Compounds thereof
    • 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
    • A61L2/18Liquid substances or solutions comprising solids or dissolved gases

Abstract

Packaging material is sterilised with 40-85% conc. H3PO4 at 30-80 deg. C, e.g. for 10-20 secs. Pref. containers are sterilised before filling with germ-free material and sealing. Packaging materials are sterilised before shaping to containers to filled with germ-free materials and sealed. Sterilisation can be achieved by passing the packaging materials through an H3PO4-contg. bath. Containers can be immersed, filled and then emptied or sprayed with H3PO4. H3PO4 residues are subsequently removed, pref. by blowing with sterile air or by suction. H3PO4 has a high germicidal activity, e.g. against B. subtilis and stearothermophilus; is odourless; does not vapourise under the conditions of use and acts as a food-acid.

Description

Verwendung von PhosPhorsäure und VerfahrenUse of Phosphoric Acid and Process

zum Sterilisieren von Terpackungsmaterial Stand der Technik Zum Sterilisieren von Packstoffen und Packmitteln wird heute in der Praxis überwiegend Wasserstoffperoxid eingesetzt. Obwohl die Entkeimungswirkung von Wasserstoffperoxid zufriedenstellend ist, bestehen die Probleme, daß allenfalls in der Packung verbleibende Rückstände Fremdstoffe sind, die einer Reglementierung unterliegen, und daß aus den verwendeten wässrigen Wasserstoffperoxidlösungen auch Wasserstoffperoxiddämpfe entweichen, die für die Maschinenbedienungspersonen Grund für eine Belästigung sind, wie Reizung der Schleimhäute und Bleichung der Haare.for the sterilization of packaging material State of the art For sterilization of packaging materials and packaging materials is predominantly hydrogen peroxide in practice today used. Although the disinfecting effect of hydrogen peroxide is satisfactory is, there are the problems that at most residues remaining in the pack Foreign substances are subject to regulation, and that from the used aqueous hydrogen peroxide solutions also escape the hydrogen peroxide vapors cause nuisance to machine operators, such as irritation of the mucous membranes and bleaching of the hair.

Es ist daher ein ähnlich wirkendes Mittel erstrebenswert, welches die geschilderten Nachteile nicht aufweist. Das gesuchte Mittel sollte geruchsneutral, bei Anwendungsbedingungen nicht als Dampf belästigen und kein 1>ebensmittelfremdstoff sein.It is therefore worth striving for a means with a similar effect, which does not have the disadvantages described. The agent you are looking for should be odorless, Do not annoy as steam under conditions of use and no 1> food foreign substance be.

Bei Bacillus subtilis - Sporen ergaben a) 40prozentige Phosphorsäure D = 9 sec bei 70 °C D = 2,5 sec " 80 °C b) 60prozentige Phosphorsäure D = 22 sec bei 60 0 D = 6 sec bei 70 0 c) 85prozentige Phosphorsäure D = 6 sec bei 30 0 D = 0,6 sec bei 41 °C Bei Bacillus stearothermophilus - Sporen wurden mit d) 85prozentiger Phosphorsäure die folgenden D-Werte ermittelt: D = 13 sec bei 40 OC D = 1,3 sec bei 54 °C.Bacillus subtilis spores gave a) 40 percent phosphoric acid D = 9 sec at 70 ° C D = 2.5 sec "80 ° C b) 60 percent phosphoric acid D = 22 sec at 60 0 D = 6 sec at 70 0 c) 85 percent phosphoric acid D = 6 sec at 30 0 D = 0.6 sec at 41 ° C. In Bacillus stearothermophilus - spores were 85 percent higher with d) Phosphoric acid determined the following D values: D = 13 sec at 40 ° C. D = 1.3 sec at 54 ° C.

Zum Entkeimen von Packstoffen, wie Kunststoffbahnen, kunststoffbeschichtete Kartonbahnen werden 4 bis 6 D für Bacillus subtilis gefordert. Das ergäbe unter Verwendung einer 40prozentigen Ortho-Phosphorsäure bei einer Behandlungstemperatur von 80 °C eine Behandlungsdauer von 10 bis 15 sec. Bei niedrigerer Temperatur genügen ähnliche Zeiten, wenn die Eonzentration höher gewählt wird. In der Konserventechnik fordert man für Bacillus stearothermophilus nur ein 2 D - Konzept.For disinfecting packaging materials such as plastic sheets, plastic-coated Cardboard sheets of 4 to 6 D are required for Bacillus subtilis. That would result in Use of a 40 percent orthophosphoric acid at a treatment temperature from 80 ° C a treatment time of 10 to 15 seconds. At a lower temperature, sufficient similar times if the concentration is chosen higher. In canning technology only a 2D concept is required for Bacillus stearothermophilus.

Vorteile der Erfindung Beim Sterilisieren von Verpackungsmaterial mit Phosphorsäure wird die oben gestellte Aufgabe erfüllt. Ihre Verwendung hat außerdem die Vorteile, daß sie eine überraschend hohe keimtötende Wirkung hat, geruchlos ist und in wässriger Lösung erst bei Temperaturen über dem Anwendungsbereich verdampft. Es kommt ferner hinzu, daß Phosphorsäure als Lebensmittelsäure gilt, d.h., daß diese in Lebensmitteln enthalten ist oder zugesetzt werden darf 1 beispielsweise bei coffeinhaltigen Limonaden bis zu einer Konzentration von 0,7 %.Advantages of the Invention When sterilizing packaging material With phosphoric acid, the above task is achieved. Their use also has the advantages of having a surprisingly high germicidal effect, odorless and only evaporates in aqueous solution at temperatures above the application range. It should also be added that phosphoric acid is considered a food acid, i.e. that this is contained in food or may be added 1 for example with caffeine Lemonades up to a concentration of 0.7%.

Laborversuche Die keimtötende Wirkung von Phosphorsäure wurde an Sporen von Bacillus subtilis und Bacillus stearothermophilus labormäßig ermittelt. Bacillus subtilis wurde ausgewählt, da dieser üblicherweise als Testkeim für die Wasserstoffperoxidentkeimung genommen wird. Bacillus stearothermophilus gilt als die hitzebeständigste Mikrobenart. Es wurden Versuche mit 40-, 60- und 85prozentiger Ortho-Phosphorsäure bei.verschiedenen Temperaturen durchgeführt. Dabei wurden die D-Werte ermittelt, welche die Zeit in Sekunden für die Reduzierung der Keimzahl auf 10 % der jeweiligen Ausgangskeimzahl angeben.Laboratory experiments The germicidal effect of phosphoric acid was on spores of Bacillus subtilis and Bacillus stearothermophilus determined in the laboratory. Bacillus subtilis was chosen because it is usually used as a test germ for hydrogen peroxide germination is taken. Bacillus stearothermophilus is considered to be the most heat-resistant type of microbe. There were experiments with 40, 60 and 85 percent orthophosphoric acid at.vifferenen Temperatures carried out. The D-values were determined, which correspond to the time in Seconds for the reduction of the germ count to 10% of the respective initial germ count indicate.

Für wenig verkeimte Packstoffe reicht daher weniger, z.B. das 1 D - Konzept, was bedeutet, daß bei Verwendung 40prozentiger Ortho-Phosphorsäure die Behandlungsdauer 13 sec bei 40 0C und 1,5 sec bei 54 0C beträgt.Less is therefore sufficient for packaging materials with few germs, e.g. the 1 D - Concept, which means that when using 40 percent orthophosphoric acid the Treatment duration is 13 seconds at 40 ° C. and 1.5 seconds at 54 ° C.

Ausführunp;sbeispiele Zum Sterilisieren einer Packstoffbahn, aus der in keimfreier Umgebung fortlaufend Verpackungsbehältnisse geformt, diese mit sterilem Gut befüllt und verschlossen werden, wird die Packstoffbahn durch ein Bad aus Phosphorsäure gezogen. Die beim Austreten der Babn aus dem Bad mitgezogene Phosphorsäure in Form von Tröpfchen oder eines -Films wird mit Quetschwalzen, einem Luftschleier oder durch Absaugen am Eingang einer Sterilkammer einer Verpackungsmaschine entfernt. Die Parameter für Phosphorsäurekonzentration, Temperatur und Baddurchlaufzeit werden aufgrund von Versuchen ermittelt und eingestellt.Embodiments For sterilizing a packaging material web from which In a sterile environment continuously formed packaging containers, these with sterile The packaging material web is well filled and sealed by a bath of phosphoric acid drawn. The phosphoric acid drawn in when the baby emerges from the bath in the form of droplets or a film is made with nip rollers, an air curtain or removed by suction at the entrance of a sterile chamber of a packaging machine. The parameters for phosphoric acid concentration, temperature and bath cycle time are determined and adjusted on the basis of tests.

Bereits geformte Verpackungsbehältnisse werden, um sie allseitig zu entkeimen, in ein Phosphorsäurebad getaucht, wobei eine Fördereinrichtung diese nacheinander durch das Bad führt. Da es in den meisten Fällen genügt, nur die Innenseiten der Behältnisse zu entkeimen, können diese mit Phosphorsäure befüllt und wieder entleert werden, oder es kann Phosphorsäure auch auf deren Innenwandung versprüht werden. In allen Fällen ist ein nachfolgendes Spülen mit steriler Luft oder auch sterilem Wasser empfehlenswert, um die Rückstände klein zu halten.Packaging containers that have already been formed are used to cover them on all sides sterilize, immersed in a phosphoric acid bath, with a conveyor device this one after the other through the bathroom. Since it is sufficient in most cases, only the inside To sterilize the containers, they can filled with phosphoric acid and emptied again, or phosphoric acid can also be applied to the inner wall be sprayed. In all cases there is a subsequent flushing with sterile air or sterile water is recommended to keep the residues small.

Je nach der verwendeten Konzentration der Phosphorsäure sind Behandlungszeiten von 10 bis 20 sec bei beherrschbaren Arbeitstemperaturen von 30 bis 80 °C hinnehmbar.Treatment times depend on the concentration of phosphoric acid used from 10 to 20 seconds at a controllable working temperature of 30 to 80 ° C.

Claims (7)

Anspruche 1. Verwendung von Phosphorsäure zum Sterilisieren von Verpackungsmaterial.Claims 1. Use of phosphoric acid for sterilizing packaging material. 2. Verwendung von Phosphorsäure zum Sterilisieren von Verpackungsmaterial nach Anspruch 1 mit der MaBgabe, daß Ortho-Phosphorsäure einer Konzentration von 40 bis 85 % und einer Temperatur von 30 bis 80 OC verwendet wird.2. Use of phosphoric acid to sterilize packaging material according to claim 1 with the proviso that orthophosphoric acid has a concentration of 40 to 85% and a temperature of 30 to 80 OC is used. 3. Verwendung von Phosphorsäure nach Anspruch 1 oder 2 zum Sterilisieren von Verpackungsbehältnissen, bevor diese mit keimfreiem Gut befüllt und verschlossen werden.3. Use of phosphoric acid according to claim 1 or 2 for sterilization of packaging containers before they are filled with sterile goods and sealed will. 4. Verwendung von Phosphorsäure nach Anspruch 1 oder 2 zum Sterilisieren von Packstoffen, bevor diese zu Verpackungsbehältnissen geformt werden, welche mit keimfreiem Gut befüllt und verschlossen werden.4. Use of phosphoric acid according to claim 1 or 2 for sterilization of packaging materials before they are formed into packaging containers, which with sterile goods are filled and sealed. 5. Verfahren zum Sterilisieren von Verpackungsmaterial unter Verwendung von Phosphorsäure nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Verpakkungsmaterial durch ein Bad mit Phosphorsäure geführt wir und ansc1ießend Phosphorsäurereste entfernt werden.5. Method of sterilizing packaging material using of phosphoric acid according to any one of claims 1 to 4, characterized in that the packaging material is passed through a bath with phosphoric acid and then afterwards Phosphoric acid residues are removed. - 6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß Phosphorsäurereste durch Abblasen mit steriler Luft entfernt werden.- 6. The method according to claim 5, characterized in that phosphoric acid residues can be removed by blowing off with sterile air. 7. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß Phosphorsäurereste durch Absaugen entfernt werden. 7. The method according to claim 5, characterized in that phosphoric acid residues can be removed by suction.
DE19803039437 1980-10-18 1980-10-18 Sterilising packaging material with conc. ortho-phosphoric acid - pref. by passing through phosphoric acid bath and then removing residue Withdrawn DE3039437A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803039437 DE3039437A1 (en) 1980-10-18 1980-10-18 Sterilising packaging material with conc. ortho-phosphoric acid - pref. by passing through phosphoric acid bath and then removing residue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803039437 DE3039437A1 (en) 1980-10-18 1980-10-18 Sterilising packaging material with conc. ortho-phosphoric acid - pref. by passing through phosphoric acid bath and then removing residue

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DE3039437A1 true DE3039437A1 (en) 1982-05-27

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4608289A (en) * 1983-08-16 1986-08-26 Interface Research Corporation Carpet containing sanitizing compounds and methods
US4647601A (en) * 1984-03-08 1987-03-03 Interface Research Corporation Self-sanitizing epoxy resins and preparation thereof
US4753749A (en) * 1984-03-08 1988-06-28 Interface Research Corporation Microbiocidal cleaning agent and preparation thereof
US4908209A (en) 1983-08-16 1990-03-13 Interface, Inc. Biocidal delivery system of phosphate ester and method of preparation thereof
US4935232A (en) * 1983-08-16 1990-06-19 Interface Research Corporation Microbiocidal composition and method of preparation thereof
US5024840A (en) * 1984-03-08 1991-06-18 Interface, Inc. Antimicrobial carpet and carpet tile
US5032310A (en) * 1983-08-16 1991-07-16 Interface, Inc. Microbiocidal cleansing and disinfecting formulations and preparation thereof
US5133933A (en) 1983-08-16 1992-07-28 Interface Research Corporation Microbiocidal preservative
US5474739A (en) 1978-02-04 1995-12-12 Interface, Inc. Microbiocidal composition
WO1997047201A1 (en) * 1996-06-14 1997-12-18 Dzneladze, David Phosphate composition and its utilization
US6350474B1 (en) 1996-06-14 2002-02-26 David Dzneladze Phosphate composition and its utilization

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5474739A (en) 1978-02-04 1995-12-12 Interface, Inc. Microbiocidal composition
US4608289A (en) * 1983-08-16 1986-08-26 Interface Research Corporation Carpet containing sanitizing compounds and methods
US4908209A (en) 1983-08-16 1990-03-13 Interface, Inc. Biocidal delivery system of phosphate ester and method of preparation thereof
US4935232A (en) * 1983-08-16 1990-06-19 Interface Research Corporation Microbiocidal composition and method of preparation thereof
US5032310A (en) * 1983-08-16 1991-07-16 Interface, Inc. Microbiocidal cleansing and disinfecting formulations and preparation thereof
US5133933A (en) 1983-08-16 1992-07-28 Interface Research Corporation Microbiocidal preservative
US4647601A (en) * 1984-03-08 1987-03-03 Interface Research Corporation Self-sanitizing epoxy resins and preparation thereof
US4753749A (en) * 1984-03-08 1988-06-28 Interface Research Corporation Microbiocidal cleaning agent and preparation thereof
US5024840A (en) * 1984-03-08 1991-06-18 Interface, Inc. Antimicrobial carpet and carpet tile
WO1997047201A1 (en) * 1996-06-14 1997-12-18 Dzneladze, David Phosphate composition and its utilization
US6350474B1 (en) 1996-06-14 2002-02-26 David Dzneladze Phosphate composition and its utilization

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: MAILE, SIEGFRIED, DIPL.-TROPH. DIPL.-LEBENSMITTELI

8141 Disposal/no request for examination