• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1527565 Sterilizing packaging material TETRA PAK DEVELOPPEMENT SA 17 May 1977 [29 May 1976] 20655/77 Heading A5G An article especially a web of packaging material is sterilized by wetting the article with a sterilizing solution having an active chlorine concentration of from 500 to 20,000 mg/l and treating the thus sterilized article with an aqueous solution of hydrogen peroxide to deactivate any remaining active chlorine. The sterilization may be carried out at a temperature below 70‹C. The article may be immersed in or sprayed with either the sterilizing solution and/or the hydrogen peroxide solution. The concentration of the sterilizing solution may be continuously controlled by monitoring its redox potential and adding the requisite amount of active chlorinecontaining compound e.g. sodium or calcium hypochlorite, chlorinated trisodium phosphate, chlorine dioxide, sodium p-toluenesulphochloroamide, p-toluenesulphonsulphochloroamide; N-chlorosuccinimide, 1, 3-dichloro-5, 5-dimethylhydantoin, trichloroisocyanuric acid or salts thereof, dichloroisocyanuric acid or salts thereof, trichloromelamine or dichloroglycolurid.
    公开号:SU717995A3
    申请号:SU772488241
    申请日:1977-05-27
    公开日:1980-02-25
    发明作者:Фегеле Петер；Шульте Дитхард
    申请人:Тетра Пак Девелоппмент Са (Фирма)；
    IPC主号:
    专利说明:

    (54) METHOD FOR DECONTAMING SURFACES OF PACKAGING MATERIAL
    The invention relates to disinfecting the surfaces of packaging materials consisting of plastic or coated with plastic by wetting disinfecting solutions containing active chlorine. These techniques can be used for the aseptic filling of milk or other beverages, or when aseptically packaging other food products. There is a known method of disinfection with a solution of active chlorine 1. However, in a known method, the disinfectant substance has been removed from the treated surface incompletely. The aim of the invention is to more completely separate the residual disinfectant solution from the packaging material. This is achieved by taking the active chlorine solution at a concentration of 0.05-2% and a pH value of 8-10 at 2070 ° C, followed by treating the surfaces of the packaging material with an aqueous hydrogen peroxide solution, and the decontamination solution can be applied by immersing the packaging material or by spraying or spraying as an aerosol for 10-60 seconds, and the excess disinfecting solution can be squeezed out of the packaging material before being treated with an aqueous solution of hydrogen peroxide. FIG. 1 and 2 show a device for carrying out the method. FIG. Figure 1 shows the application of the method on an installation for automatically pouring milk into packaging vessels obtained from a strip-like, coated polyethylene packaging material. The strip material must be decontaminated before receiving packaging containers. Vessel 1 contains concentrated alkali for disinfecting solution, containing active chlorine with a pH value of 12 and an active chlorine content of approximately 100 g / l. Through the supply 2 with the valve 3, the liquid flows from the vessel 1 into the spare vessel 4, with a capacity of, for example, 3 liters. Behind the spare vessel 4 there is a submersible bath 5, with a capacity of approximately 1 l. The fluid is constantly pumped through pump b through wire 7 between vessel 4 and bath 5. The temperature of the disinfecting solution in the submerged bath 5 is maintained
    60 C. The pH value of 70% phosphoric acid is adjusted to 8 in a submersible bath 5 or a spare vessel 4, and from another vessel 8 is passed through wire 9 with a valve 10 into a spare vessel 4. The redox sensor is continuously measured the potential, and the sensitive element 12, the pH value of the solution in the storage vessel 4. The measurement data are continuously fed to the redox control circuit 13 or the pH control circuit 14. These schemes control valve 3 or 10 so that the concentration of active chlorine (1%) and the pH value (8) of the disinfectant solution in the storage vessel 4 retain the desired values. Concentrations and pH values are thus set constant. The absolute concentration of active chlorine / can also be achieved by titration with sodium thiosulfate by a known method. Titrated chlorine is called active chlorine. The disinfectable web of packaging material 15 is passed through a roller 16 located in the submerged bath 5, and thus moistened with a disinfecting solution. After that, the moistened web passes through the outside chamber 17, 2 m long, at such a speed that there is an Ius for the decontamination process. At the end of the chamber 17, with the help of two squeezing rollers 18, most of the disinfecting solution adhering to the packaging material is removed. The squeeze rollers 18 remove the disinfectant solution, approximately 0.03%, with a preliminary speed of the packaging material of approximately 20 cm / s.
    In order to remove residual chlorine, a web of material 15 is spiked through a washing bath filled with an aqueous 0.2% hydrogen peroxide solution. The washing bath 19 is connected via wires 20 to a tank 21 filled with 0, hydrogen peroxide solution. Using a pump (not shown), the solution is continuously pumped between the wash tub 19 and the tank 21 in the direction indicated by the arrow. The temperature of the hydrogen peroxide solution can be room temperature, for example, the contents of the tank 21 are set so that by reacting with life chlorine, the concentration of hydrogen peroxide in the wash bath on one day is not lower than 10%. After the washing bath 19, the stuck liquid residues are again pressed by the rollers 22 from the web of material 15, Then by a known method. Packing vessels are obtained from material 15, which are filled with milk.
    Instead of squeezing rollers 22, a so-called air knife can also be used, i. E. intensive treatment with sterile air. It was found that in the most unfavorable case of the above described disinfecting treatment of the web of material, 0.1 ml of a 0.2% aqueous solution of hydrogen peroxide can get into a 1 liter milk bag. This corresponds to a residue of 0.2 mg of hydrogen peroxide per liter of the spilled product, and thus amounts to a value that is acceptable and is achieved by other, but much more complicated, devices.
    Fig. 2 shows a device for carrying out the proposed method, which differs from the device in Fig. 1 only that the disinfecting solution is sprayed out of the spare tank 4 onto the web of material 15 not through a dip bath, but with the help of two turbo-sprayers 23 in the form of a thin layer. The diameter of the droplets formed may be 10 μm,.
    Significant advantages of the described method are as follows. A sufficiently reliable disinfection occurs, in particular, the destruction of bacterial spores without the use of high temperatures and the devices required for this. Residues on the processed material do not violate the requirements for packaging material for food products.
    The reduction in the number of bacterial spores after carrying out the method is established as follows. Bacteria spores (with garden soil: as a carrier) and / or mold spores (with lake sand as a carrier) are poured in the form of a disinfecting solution. After 15 seconds, a portion of the suspension thus obtained will be added to the sodium thiosulfate solution to deactivate the disinfecting solution,
    The number of non-dead spores or microbes is established using the Koch cup method. This number is compared with the number of undisturbed pathogens of water control, and
    during the water control to destroy the vegetative microbes, the bacteria are heated for 10 minutes before. From the number of both microbes, on the basis of the formula below, a so-called
    the tenth degree of killing is R, which is a measure of the action of disinfection. R values between 3 and 4, i.e. a decrease in the number of spores by 3-4 decimal places is considered
    sufficient in food chemistry.
    control of the number of microbes in the substrate
    gOg.
    the number of microbes in the substrate after disinfection
    T and b and c. one . five
    Tempera Degree killing tour C
    Asper-
    gieeus 10
    niger
    4.05
    1.76
    20
    60 2.13 6.30 90 3.61 more than 7.5
    T a
    faces
    ) pH - 8
    Tables 1 and 2 show sterilization with a 30% spore hydrogen peroxide solution in soil and bacteria. It is shown that at very high temperatures, approximately at. It is possible to achieve a satisfactory degree of killing, moreover, if the concentration of active chlorine is too low, sufficient disinfection does not occur. To prepare an aqueous, GOVERNMENTAL disinfecting solutions containing active chlorine in these quantities suitable mainly gipohlrit sodium, calcium hypochlorite, chlorinated trisodium phosphate, the chlorine dioxide, p-toluene-sulfohloramid sodium p-toluenesulfonyl-sulfohloramyl, N-chloro-succinimide, 1,3-dichloro-5, 5-dimer hydantoin trichloroisocyanuric acid and its salts, dichloroicysanuric acid and its salts, trichlormelamine and dichloroglycoluril.
    权利要求:
    Claims (5)
    [1]
    1. A method of disinfecting the precursors of the packaging material with a solution of active chlorine, which is also so that, in order to more completely separate the residues of the disinfectant solution from the packaging
    0 material, a solution of active chlorine is measured in a concentration of 0.05-2% and a pH value of 8-10 at 20-7 ° C, followed by treating the surfaces of the packaging material with an aqueous solution
    5 hydrogen peroxide,
    [2]
    2. The method according to claim 1, which is also distinguished by the fact that the disinfectant
    The solution is applied by dipping the packaging material into it.
    [3]
    3. Method according to PL, about aphids and with the fact that the disinfection of the vial is applied to the packaging material by spraying or as spray in the form of sprays.
    [4]
    4. The method according to claims 1-3, that is tl i5
    that is, so that the disinfecting solution is applied to the packaging material for 10-60 s.
    [5]
    5. The method according to PP.1-4, of which the situation with excess
    0 Disinfecting solution before treatment with an aqueous solution of hydrogen peroxide is squeezed out of the packaging material.
    Information sources,
    5 taken into account in the examination
    1. For the UK of UK No. 1435J228, cl. A 61 L 1/00, 1976.
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    同族专利:
    公开号 | 公开日
    AU507508B2|1980-02-14|
    DK230877A|1977-11-30|
    AU2556777A|1978-11-30|
    JPS52147183A|1977-12-07|
    DK156269B|1989-07-24|
    US4104024A|1978-08-01|
    CH629435A5|1982-04-30|
    ES459237A1|1978-03-01|
    NO771876L|1977-11-30|
    DE2624264B1|1977-08-11|
    FI771501A|1977-11-30|
    DE2624264C2|1979-06-07|
    FI59565B|1981-05-29|
    FR2352711B1|1984-04-13|
    SE7706277L|1977-11-30|
    NO145219B|1981-11-02|
    NL7704605A|1977-12-01|
    DK156269C|1989-12-18|
    GB1527565A|1978-10-04|
    BR7703446A|1978-03-14|
    IT1081733B|1985-05-21|
    FR2352711A1|1977-12-23|
    JPS581013B2|1983-01-08|
    FI59565C|1981-09-10|
    CA1053437A|1979-05-01|
    NO145219C|1982-02-10|
    引用文献:
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    US3383831A|1964-04-03|1968-05-21|Goldsmith Frank|Web sterilization and package forming apparatus|
    US3440003A|1965-10-18|1969-04-22|Tetra Pak Ab|Method of and apparatus for sterilizing a web material|
    US3513627A|1967-09-01|1970-05-26|Packaging Frontiers Inc|Aseptic packaging|
    US3560166A|1968-02-05|1971-02-02|Dow Chemical Co|System for treatment of substrates by a plurality of fluid reactants|
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    US5200171A|1990-11-20|1993-04-06|Micropure, Inc.|Oral health preparation and method|
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    US4888155A|1987-04-07|1989-12-19|Baxter International Inc.|Apparatus for sterilizing film and like packaging material|
    SE459083B|1987-10-09|1989-06-05|Roby Teknik Ab|DEVICE FOR GAS STERILIZATION OF A CURRENT PACKAGING MATERIAL RANGE|
    SE461264B|1988-05-31|1990-01-29|Roby Teknik Ab|SETTING AND DEVICE TO PROCESS A CURRENT MATERIAL RANGE|
    US5049385A|1988-06-30|1991-09-17|Ppg Industries, Inc.|Solid halogen-containing composition and method for producing same|
    US5106559A|1988-06-30|1992-04-21|Ppg Industries, Inc.|Solid halogen-containing composition and method for producing same|
    AT400707B|1994-01-17|1996-03-25|Thonhauser Ges M B H Dipl Ing|Process for disinfecting bathing water in swimming pools|
    ES2099670B1|1994-10-07|1998-01-16|Presedo Jesus Manuel Taboada|SEA WATER TREATMENT SYSTEM BY ELECTROLYTIC MEANS.|
    US5606169A|1995-09-25|1997-02-25|Westvaco Corporation|Ultraviolet light sterilization retrofit for paperboard packaging filling machines|
    AT261852T|1999-05-03|2004-04-15|Tetra Laval Holdings & Finance|UNIT FOR STERILIZING A MATERIAL RAIL IN A PACKING MACHINE FOR PACKING FLOWABLE FOODSTUFFS, AND PACKING MACHINE WITH SUCH A UNIT|
    PT1050467E|1999-05-03|2004-07-30|Tetra Laval Holdings & Finance|UNIT FOR STERILIZATION OF PATENT MATERIAL IN A PACKING MACHINE FOR PACKAGING FOOD PRODUCTS THAT CAN BE POURED AND PACKING MACHINES THAT INCLUDE ONE OF THESE UNITS|
    SE514967C2|1999-09-17|2001-05-21|Tetra Laval Holdings & Finance|System for monitoring and controlling when sterilizing an object|
    JP4652525B2|2000-05-12|2011-03-16|日本テトラパック株式会社|Liquid removal device|
    US20020197184A1|2001-06-21|2002-12-26|Sevugan Palaniappan|System and method for sterilizing a continuously moving web for forming, filling, and sealing flexible packages|
    DE10146594A1|2001-09-21|2003-04-10|Solvay Interox Gmbh|Stabilized hydrogen peroxide|
    US7185516B2|2002-05-31|2007-03-06|Owens Corning Fiberglas Technology, Inc.|Washwater neutralization system for glass forming line|
    US8673297B2|2006-02-28|2014-03-18|Basf Corporation|Chlorine dioxide based cleaner/sanitizer|
    JP4835255B2|2006-05-10|2011-12-14|凸版印刷株式会社|Reagent container|
    FR2913021B1|2007-02-27|2012-08-31|Biomerieux Sa|COATED POLYAMIDE FILM FOR BAGGING PROLONGED CONSERVATION PRODUCTS|
    DE102007033197B4|2007-07-17|2015-11-05|Jürgen Löhrke GmbH|disinfection procedures|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2624264A|DE2624264C2|1976-05-29|1976-05-29|Process for disinfecting the surfaces of packaging materials|
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