How aseptic packaging aluminum foil bags?
3) cooking sterilization (also known as pressurized high temperature sterilization)This method is mainly used for some small acidic (pH = 4.6) of the food, such as meat, fish, poultry, milk, egg and most vegetables. Sterilization temperature is higher than 100~C, generally 121 or 134 degrees centigrade. The method is to put the aluminum foil bag (cooking bag) into a high pressure airtight container and heat it by steam or pressurized water. According to the different circumstances when the retort bag is sterilized, the utility model can be divided into static heating, sterilizing and rotating, heating, sterilizing, etc.. High temperature sterilization, according to the different heating media, can be divided into saturated steam sterilization, air pressure, steam sterilization, and pressurized water sterilization. At present, a wide range of sterilization for saturated steam, because the cost of this method is reasonable and economical, and humidity control is convenient.4) UV disinfectionThe aluminum foil bag can also be irradiated with high efficiency ultraviolet light to reach the purpose of sterilization after the packaging of food or beverage. When applying this method, the intensity and time of ultraviolet radiation shall be determined according to the size of the package and the content of the package.
2 sterilization technology of packaging bagsAluminum foil bag sterilization technology described here is for non sterile packaging (non sterile packaging with difference aseptic packaging is non aseptic packaging is the first packaging, and packaging and plastic packaging bag as a whole with sterilization; and aseptic packaging is used for food or beverage and packaging products such as aluminum foil bag respectively. Aseptic processing such as ultra high temperature sterilization or instant radiation, microwave sterilization, packaging containers, packaging and product aseptic, does not contain harmful microorganisms in the environment. Because, this sterilization is packaged in the goods after sterilization, disinfection, chemical methods are generally not used. These sterilization techniques mainly include the following:1) pasteurizationThe sterilization process uses the widely used method of pasteurization in the beer industry. In fact, the sterilization method was proved by experiments in 1860 in Pasteur, France (Pasteur), and the application of low temperature sterilization (60 DEG C heating and maintaining a certain time) in the food industry can kill microorganisms. This is a kind of low temperature sterilization method used, such as fruit, fruit juice, pickled food and pH is less than or equal to 4.6 plus acid products such as acidic foods or beverages, because these products have a certain amount of acid, is not conducive to the growth of microorganisms. At present, the temperature in the food and beverage industry is not as strict as that required by the beer industry. It is generally between 70 and 90 degrees centigrade.2) hot charging sterilizationThis is a method of sterilizing a food or beverage heated to 80~90 degrees and sealed in a hot foil bag, stored at a high temperature or at a certain temperature. This treatment is mainly used for acidic liquid foods (juices or vegetable juices).
Aluminum foil bag is a major cause of the two pollution products after sterilization, disinfection quality of packaging damage to chemical or physical methods of conventional microwave disinfection than conventional heating disinfection required low temperature, a great impact on the quality of the product will not. The use of microwave technology in soy sauce packaging bags to prevent halogen, can prevent soy sauce due to packaging caused by the two pollution problems, and prolong the shelf life of bagged products. In the case of plastic bag sterilization, mainly for sealed aluminum foil bags.
Foil bag has many advantages over other traditional packaging materials (such as difficult to have superior performance, molding, convenient use, low cost, etc.) as one of the plastic packaging materials, which plays a great role in the development of aluminum foil bag, along with other traditional packaging materials incomparable speed. It has been widely used because of its various shapes and different performances. This is the main characteristic of plastic packing. It can be the ideal performance of various uniform reasonably, such as transparency, thermal stability, physical strength, biological isolation and sealing, radiation resistance, processing and commodity, publicity, protection, use of organically. Together. Make aluminum foil bags as food, beverages, pharmaceuticals and pharmaceutical equipment and other materials, one of the best packaging products, especially in its sealing properties, but also make these products have been well protected and promoted. Although plastic bags of ten rich content, in different poses and with different expressions, but the two most basic forms: one is nothing more than open the packing bag use: such as shopping bags, R bags, Ma Jiadai, hand bags, garbage bags, rope bags, food bags and other packaging bag; seal: such as three edges two side sealing, sealing, sealing the ordinary bags, composite bags and cooking bags etc..
