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    What sterilization method is used for surgical mask

    by: EtO sterilizer manufacturerview: 1190 time: 2020-04-10
    What sterilization method is used for surgical mask
    What sterilization method is used for personal protective equipment
     
    1. UV sterilization: UV sterilization. The mask is usually made of melt blown cloth. Polypropylene melt blown material is a thermoplastic polymer material with poor aging resistance and is very sensitive to UV. After the mask is exposed to ultraviolet light, the structure will be damaged, namely oxidation degradation, which will greatly reduce the filtering performance and reduce the filtering effect of the mask. UV sterilization is used in food, tea and beverage.

    2. EO sterilization: common medical sterilization, with better sterilization effect. At present, ethylene oxide is widely used for sterilization of medical devices, and it is widely used for sterilization of masks, personal protective equipment and medical supplies. Ethylene oxide can form toxic glycol when encountering water, so it can not be used for food sterilization. Ethylene oxide (EO) is a kind of alkylating agent with strong penetrability. It can use all kinds of packaging materials and can be sterilized in the packaging state. It can kill all kinds of microorganisms (including bacteria, spores, es, fungal spores, etc.) at room temperature. It is suitable for biomedical polymer materials that are not resistant to high temperature treatment, such as natural rubber, polyethylene, polypropylene, PVC, etc.
    Therefore, the personal protective equipment is sterilized with EO, and the medical protective mask cannot be sterilized with UV.
     

    Sterilization process of mask

    Packaging → disinfection and sterilization (8-12 hours) → analysis (2-14 days) → marketing after passing the test
    Because the mask is sterilized by ethylene oxide, the residual ethylene oxide should be removed after sterilization, and the process of removing the residual ethylene oxide is resolution.
    What kind of packaging is more convenient for sterilization
    • 1. It is recommended to use dialysis bag for mask packaging, otherwise the sterilization cycle will be longer. Sterilization dialysis bag packaging for 8 hours (with preheating).
    • 2. Packaging is the first step. After packing, sterilize, analyze and test.
    The analysis depends on whether it is directly in the sterilization cabinet, placed in the analysis room or natural.
    It takes 12 hours to parse directly in the sterilizer. If there is an analysis room, it will take 5 days; if it is natural, it will take 14 days if it is well ventilated.

    How long does it take to resolve the mask after sterilization with ethylene oxide.
    • 1. If natural parsing is used, it will take about 14 days.
    • 2. If the analysis room is used, it will take about 5 days.
    • 3. If the sterilization cabinet is used for analysis, it will take 2.5 days. This requires that the sterilization cabinet has a forced resolution function, which is forced to resolve for 12 hours, and then placed naturally for 2 days.
    It only takes 12 hours to parse directly in the sterilizer. This kind of equipment adopts our new technology and greatly reduces the parsing time. Our products have advantages.
    It can be parsed directly in the sterilization cabinet, which has requirements for packaging. Dialysis packaging is needed, or small pieces of dialysis paper are left on the packaging. In order to save packaging cost, a dialysis window can be added to the packaging. Then the dialysis bag is analyzed for 12 hours, and taken out for natural analysis, that is, it is placed for 2 days.
    The whole plastic packaging can not be analyzed in the sterilization cabinet, because deep vacuum is needed, which will cause the packaging bag to burst.
    The time needed for the analysis is different due to the different process. As long as the content of ethylene oxide is below the standard, it is possible to use any analytical method, mainly depending on the choice of customers.

    Hangzhou Bocon Mechanical And Electrical Equipments Co., Ltd. is a professional enterprise with design, development and manufacture of sterilizing equipment.Focusing on the R & D and manufacturing of ethylene oxide sterilization equipment, it is located at No. 220, Zhangshan Road, Renhe street, Yuhang District, Hangzhou. The company has a history of more than 20 years (formerly known as Hangzhou Dianda disinfection equipment factory) and is in a leading position in market share, enterprise popularity, product quality and technical level in this field. The company mainly produces ethylene oxide sterilizer (HMQ series products), file (cultural relic) sterilization equipment, preheating, analysis, waste gas treatment and other supporting products, and provides technical services related to ethylene oxide sterilization. Unik is the first domestic certified manufacturer that has developed an ultra large 100 cubic meter ethylene oxide sterilizer. It has dozens of products of different sizes (HMQ-100 m3, 80 m3, 50 m3, 30 m3, 20 m3, 10 m3, 6 m3, 3 m3, 1 m3, etc.), which are exported to more than 30 countries and regions.
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