• 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:
    A web (1) of packaging material runs through two chambers (3, 4) from a roller (2) and, after being deflected twice by guide rollers (5), is shaped into a tube (6), filled via a filling pipe (7) and sealed to form packages (9, 10). The air, conveyed by a compressor (11) and dewatered in a water separator (13), is fed via a regulating valve (15) to a heating element (17) and provided with sterilising agent by means of an ultrasonic nozzle (19), whereupon the mist formed is mixed with hot air in a mixing chamber (18). The steam thus evolved comes into contact with the packaging material in the chamber (3), is cooled thereon, condenses and flows out partially through an outflow pipe (23). On passage through the second chamber (4), the remainder of the sterilising agent is removed from the web (1). The method permits exact control of the sterilising process without addition of stabilisers and wetting agents. Furthermore, the consumption of sterilising agent is very low. Disposable packages sterilised in this way are used for packaging liquid foodstuffs, e.g. milk. <IMAGE>
    公开号:SU743565A3
    申请号:SU772530103
    申请日:1977-10-07
    公开日:1980-06-25
    发明作者:Стол Ульф
    申请人:Тетра Пак Интернэшнл Аб (Фирма)；
    IPC主号:
    专利说明:

    one
    This invention relates to methods for sterilizing products with liquid sterilizing agents and can be used in sterilizing packaging material.
    A known method of sterilization of products with a solution of hydrogen peroxide by applying it to the treated surface with the subsequent removal of lj.
    The disadvantage of this method is the low quality of the old ones from a ..
    The purpose of the invention is to increase the sterilization efficiency.
    This is achieved by spraying 515 µm droplets in size before applying onto the surface to be treated and mixing it with dewatered hot air to obtain a mixture with a temperature of 90-120 ° C and absolute humidity of 0.1-0.2 kg / kg dry air.
    The method of sterilization is that before applying hydrogen peroxide on the surface to be coated, it is sprayed as a mist into droplets 5–15 µm in size and mixed with a dehydrated stream of hot air until the mixture reaches
    with a temperature of 90-120С and absolute humidity of 0.1-0.2 kg / kg dry: th air. The sterilizing agent evaporates and the dew point of the air humidified with the sterilizing agent will be higher than the temperature of the surface to be sterilized. The air mixture is then directed to the surface, which cools the air. As a result, the sterilizing agent is deposited uniformly on the surface, where it reacts for a certain length of time, and
    IS is then deleted.
    The method is based on the ability of air to give, carry and remove moisture depending on temperature.
    The ability of air to carry moisture
    20 increases with increasing temperature and decreases with decreasing temperature. If a certain amount of liquid sprayed, or the vapor is introduced into the heated air, the liquid or vapor is absorbed and transported by air until the temperature is high enough, i.e. higher condensation or dew point mixture. When for one reason or another reason the temperature
    humidified air falls below the dew point or dew point, the air is no longer a mohset to carry such a large amount of liquid and part of the liquid. This can be used to cover a certain surface with a uniform layer of liquid carried by air, provided that the body has a lower temperature than the condensation temperature of the air, is introduced into the humidified air. The part of the air that is in contact with this body is cooled, moisture is precipitated and condenses on the surface of the body. During condensation, heat is released, which warms the cold body, and condensation continues only at a sufficiently low surface temperature. The amount of condensable liquid represents a direct function of the surface temperature, i.e. the enthalpy and thermal conductivity of the body. If we assume that these factors are ideal for the entire surface, then the process will be exactly the same on each part of the surface and, therefore, a completely identical condensation over the entire surface can be achieved, which is covered with a uniform layer of liquid.
    Such a method can be used for coating in order to sterilize a certain surface with a uniform layer of liquid sternelia nth substance. This is possible with the use of an appropriate liquid sterilizing agent to humidify the air. Since air usually contains a certain amount of water, it is advisable to avoid diluting the sterilizing agent to remove as much water as possible from the air, i.e. air should be as dry as possible. This dry air is supplied with such amount of energy or heat that the sterilizing substance can evaporate and which provides the air with a sufficient temperature to transport the required amount of sterilizing agent. Due to the air temperature and the adjustable ratio of the amount of sterilized substance and air, the condensation or dew point of the air humidified with the sterilized substance can be regulated to a temperature that is H3t-A certain amount exceeds the surface temperature that must be covered by the sterilizing agent. Upon receipt of the required mixture of air and sterilant, the mixture is directed to the surface to be sterilized. As a result, the air is cooled, its ability to transfer the sterilizing agent deteriorates and
    most of the sterilizing substance condenses on the surface. After the reaction time, which depends on the type of sterilizing agent, its concentration, as well as the desired bactericidal effect, the sterilizing substance is removed again. This can be achieved, for example, by using hot air or by irradiating with any heating element, for example an infrared lamp.
    Fig. 1 is a schematic drawing of an installation for carrying out the described method.
    The packaging material 1 rolls along the roller 2 and passes through two chambers 3 and 4, which are arranged in series, along two guide rollers 5 and then vertically down through the packaging machine. During the downward movement through the machine, the web rolls up into tube -6. After the web is rolled up and sealed, the tube is filled with the desired contents, such as milk, through the tube 7 and the filler, which passes through the upper open end of the tube down and its lower end where it ends. At some distance from the lower end of the filling tube 7, there are sealing lips 8, which at the same distance form on the filled tube 6, move vertically downwards, transversal seals, inside which the tube is also separated by transverse cuts. Fully filled containers 9 are transferred to position 10 of the final folding, where they take the form of paralleled slip.
    The described system, which interacts with the packaging machine, comprises an air compressor 11, a cooler 12 for compressed air connected to the compressor, and a water separator 13, in which moisture from the air is removed. The dehydrated air is directed through the piping system to the two control valves 14 and 15, which define a continuous flow. The mass of air passes through the control valve 14 to the heater or heating element 16, which transfers the required amount of energy or heat to the air. From the heating element 16, the air then flows into the mixing chamber 17. At the upper end of the chamber, there is an ultrasonic nozzle 18, which is driven by supplying a portion of the air flow from the water separator 13, controlled by a control valve 15.
    The ultrasonic nozzle 18 also leads the pipeline for the sterilizing agent, which is supplied from the tank 19 through the respective pipelines and pumps 20, the ultrasonic nozzle has a known construction, and it acts so that the air flow from the control valve 15 forms a standing wave of high frequency (kHz) A sterilized substance is injected into this standing wave, which is sprayed into droplets 5-15 km in size. Such highly sprayed liquid (or mist) is mixed in a container or a mixing chamber 17 with hot air. As a result of the debris, the liquid turns into mist in the form of a mist passing through pipe 21 into chamber 3 through which the packaging material passes during its passage. from the roller 2 and the working part of the packaging machine In chamber 3, the mixture of sterilizing substance and air comes into contact with the moving web of material 1, which cools the mixture, and as a result the sterilizing substance condenses as an even layer on the canvas about. A portion of the sterilizing substance is condensed on the wall of the chamber and removed through the sewer 22. The web also passes through chamber 4, which is located at some distance from chamber 3. After the layer of sterilizing medium in KciMepe 3 is applied to the web, the web leaves some distance falls into chamber 4, in which the sterilized substance is again removed from the web. The distance between the two chambers 3 and 4 is a definite time during which the sterilizing substance can act on the web, and this distance is between erami selected such that there is enough time to achieve the desired bactericidal effect. The sterilizing agent is removed from the web in the chamber 4 by means of a stream of hot air which is formed in the water ring compressor 23. The compressor has a known structure, the formed compressed air passes through the water separator 24 which separates the residual moisture from the air, and the heating element 25 to chamber 4. After the sterilizing agent is evaporated and removed for a certain length of time, the air mixed with the sterilizing agent returns to the water a ring compressor 23, where it is separated t sterilant is mixed with the sealant. water and is separated in a water separator 24. For the proposed method it is important that the air used can absorb a certain amount of hydrogen transfer. To make this possible and to prevent the mixing of hydrogen peroxide with moisture, which is normally present in the air, dehydrated air is used. This is achieved by compressing the air in the compressor 11 under a pressure of 6-7 kg / cm. The air heated under compression is then passed to the refrigerator 12, in which it is cooled to 15-20 ° C. As a result, most of the moisture contained in the air is settled and removed in the water separator 13. Now, the dewatered air has absolute humidity, which has decreased from approximately 0.01 to 0.003 kg / kg. The dehydrated air passes partially through the heated element 16 into the mixing chamber 17, partly into the ultrasonic nozzle 18 to form a standing wave, which sprays the sterilizing substance fed into the ultrasonic nozzle. . The 100-kHz wave has a frequency of approximately 30 kHz and distributes the sterilizing agent until a mist with a droplet size of approximately 10 µm is formed. The mist is sprayed directly into the mixing chamber 17, where it is mixed with a mass of dehydrated air heated to a high temperature. As a result of heating to a high temperature, the sterilized drops of the substance forming the mist begin to boil and evaporate. The temperature of the mixture decreases to approximately 100 ° C, and the condensation temperature or dew point at an absolute humidity of approximately 0.150 kg / kg will be approximately equal. It has been found that such a dew point provides co-condensation on the web of packaging material 1 even under adverse conditions, for example, at high ambient temperatures. Naturally, the dew point can change up or down as the amount of the sterilizing agent and the amount of air vary relative to one another. The mixture of vapor from the sterilant and air is directed so that it passes along the web of the packaging material 1 along the entire length of the chamber. During this time, the part of the mixture that is in contact with the web of packaging material is cooled and the sterilizing agent condenses to a uniform layer on the surface of the web. In connection with the condensation, heat is released which passes to the cloth and heats it. Condensation continues until the temperature difference is equalized (assumed
    权利要求:
    Claims (1)
    [1]
    Claim
    The method of sterilization of products with hydrogen peroxide solution by applying it on the treated surface with subsequent removal, characterized in that, in order to increase the efficiency of sterilization, before applying to the treated surface a solution of hydrogen peroxide is sprayed into droplets 5-15 µm in size and mixed with dehydrated hot air to obtain a mixture with a temperature of 90120 ° С with absolute humidity of 0,, 2 kg / kg of dry air.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU743565A3|1980-06-25|Article sterilisation method
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    SE452301B|1987-11-23|SET AND DEVICE FOR STERILIZING PACKAGING MATERIAL WITH SPRAYED WHEAT PEROXIDE SOLUTION
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    US3063845A|1962-11-13|Sterilized liquid food product packaging and package resulting therefrom
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    JPH02133925A|1990-05-23|Cleaning and drying apparatus by steam
    US1482143A|1924-01-29|Apparatus for concentrating milk
    SU1423875A1|1988-09-15|Method of drying dispersed and porous materials
    SU938891A1|1982-06-30|Dry product producing plant
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    同族专利:
    公开号 | 公开日
    FR2366842A1|1978-05-05|
    NL7710883A|1978-04-11|
    JPS619163B2|1986-03-20|
    SE7611123L|1978-04-08|
    SE401912B|1978-06-05|
    CH622749A5|1981-04-30|
    IT1088961B|1985-06-10|
    JPS5347548A|1978-04-28|
    AU512245B2|1980-10-02|
    FR2366842B1|1982-10-15|
    CA1081428A|1980-07-15|
    DE2744637A1|1978-04-13|
    DE2744637B2|1980-02-21|
    AU2943577A|1979-04-12|
    GB1582060A|1980-12-31|
    引用文献:
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    US3922835A|1973-10-11|1975-12-02|Altstaedter Verpack Vertrieb|Apparatus for packaging under sterile conditions|
    DE2435037C2|1974-07-20|1986-11-06|Robert Bosch Gmbh, 7000 Stuttgart|Method of sterilizing objects|
    CH587153A5|1974-11-19|1977-04-29|Alpura Koreco Ag|
    SE427019B|1975-01-24|1983-02-28|Int Paper Co|METHOD OF MANUFACTURING A PACKAGING FOR RECEIVING A STERILE LIQUID|WO1979001074A1|1978-05-16|1979-12-13|Ex Cell O Corp|Method and means for applying bactericide to container for sterilization|
    JPS56113530A|1980-02-13|1981-09-07|Dainippon Printing Co Ltd|Method of sterilizing packing material|
    DE3047087A1|1980-12-13|1982-07-29|Jagenberg-Werke AG, 4000 Düsseldorf|METHOD AND DEVICE FOR BACTERIZING PACKAGING MATERIAL, IN PARTICULAR. OF CONTAINERS MOLDED FROM CUT|
    DE3235476C2|1981-11-14|1986-09-11|Jagenberg AG, 4000 Düsseldorf|Method and device for disinfecting packaging material, in particular packaging containers|
    GB2127692A|1982-09-29|1984-04-18|American Sterilizer Co|Hydrogen peroxide liquid film sterilization method|
    SE8300356L|1983-01-25|1984-07-26|Tetra Pak Int|SET AND DEVICE FOR Vaporizing a liquid|
    DE3339930A1|1983-11-04|1985-05-23|Hamba-Maschinenfabrik Hans A.Müller GmbH & Co KG, 5600 Wuppertal|Method and device for sterilization of cup-shaped containers intended for accommodation of dairy products|
    SE8405557D0|1983-11-07|1984-11-06|American Sterilizer Co|SET CONCENTRATE VETEPEROXIDE|
    DE3414268A1|1984-04-14|1985-10-24|Kolbus Gmbh & Co Kg|Method and device for the sterilisation of foodstuff containers|
    DE3442399C2|1984-11-20|1987-02-19|Pwa Industriepapier Gmbh, 8201 Raubling, De|
    IT8543502D0|1985-02-18|1985-02-18|Moscatelli Ing Silviano|EQUIPMENT FOR THE CONTINUOUS STERILIZATION OF FLEXIBLE MATERIAL TAPES|
    FR2591114B1|1985-12-06|1994-10-14|Anios Sa Laboratoires|AIR SURFACE DISINFECTION INSTALLATION IN CLOSED ENCLOSURES.|
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    US4909999A|1987-07-06|1990-03-20|American Sterilizer Company|Flow-through vapor phase sterilization system|
    SE459083B|1987-10-09|1989-06-05|Roby Teknik Ab|DEVICE FOR GAS STERILIZATION OF A CURRENT PACKAGING MATERIAL RANGE|
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    JP5127619B2|2008-07-24|2013-01-23|オリンパスメディカルシステムズ株式会社|Endoscope cleaning / disinfecting apparatus, endoscope cleaning method using endoscope cleaning / disinfecting apparatus|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE7611123A|SE401912B|1976-10-07|1976-10-07|METHOD OF STERILIZING FOREMS BY LIQUID STERILIZER AND DEVICE FOR IMPLEMENTING THE KIT|
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