Choose a common misunderstanding of condiment packaging bags.Flexible packaging film roll Manufacturing

　　At present, there are still some misunderstandings of the production and application of condiment packaging bags. For example, some soft private bags produced by the condiments produced by customers are incorrect or unreasonable for the combination of composite materials, which causes customers to complain, and customers may not trust the quality of the soft private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private private bags. In order to avoid the emergence of similar situations, the five major application misunderstandings of food plastic soft packaging production are summarized for your reference.

　　1. Polyethylene film should not be fried in plant frying foods or condiment packaging bags containing vegetable oil

　　PE (polyethylene) plastic film is made in actual flow or blowing. In order to enhance the performance of or complementary film, high -voltage polyethylene, low -pressure polyethylene and linear polyethylene are often mixed in proportion. Although PE (polyethylene) fresh -keeping film has good breathability, PE will quickly penetrate, swell, and discolor after contacting vegetable oil. For example, foods containing vegetable oil will not only greatly shorten the shelf life of food, but also contact vegetable oil for a long time. PE PE will be exposed to PE. (Polyethylene) in the film will be precipitated into the vegetable oil, which is harmful to the health of the human body. Therefore, the PE film should not be used to pack fried foods and foods containing vegetable oil. , Foods such as Nut Seeds.

　　2. The PE plastic film below the five layers of PE plastic film should not be made of milk condiment packaging bags

　　The packaging of PE (polyethylene) plastic film, milk packaging, dairy packaging, soy sauce, vinegar packaging, which are popular in the market, are typical packaging of co -plastic film. The transparent printed vacuum or cooking packaging bag is also a packaging of crowded plastic film. Although the current milk packaging uses the black and white co -squeezed plastic film in the white inner white, it has extended the shelf life. However, if the three -layer co -plastic film is used, due to the lack of obstruction layers, the shelf life marked on the packaging is rarely achieved. The five layers of co -squeezing and coating PVA (polyvinyl alcohol) blocking layer of the EVOH (ethylene/alcohol alcohol) blocking layer can be extended to the shelf life, but the cost is higher.

　　3. Plastic soft packaging medium vacuum aluminum plating film cannot replace AL metal aluminum foil

　　AL metal aluminum foil has a shiny metal luster, non-toxic, odorless, excellent shielding, and the reflective rate can reach 95%. The high temperature and low temperature are stable. , Oxygen, hydrophilic, and incense, it is an excellent middle -level substrate thin film with high -end packaging; high -end packaging and bubble packaging for drugs, high -end packaging of chocolate, convenient bowl cover cover, milk and dairy products, fruit juice Paper/aluminum/plastic composite packaging, high -end spice packaging, cooked meat, chicken, roast duck, etc. of food and condiments, cooked meat, chopped chicken, roast duck, etc., moisture -proof, anti -static packaging, etc.

　　Although aluminum -plated plastic film, although the mechanical properties are good, aluminum plated surface is flat and bright, it is not easy to produce pinholes and decorative, it has a certain effect of blocking gas, avoiding light, and shielding. It is easy to break, it is easy to produce pinholes, and it is not tolerant to acid and alkali. However, the aluminum layer of vacuum aluminum -plated plastic film has poor water resistance. When it is wet, it will fall off. In addition, the aluminum layer is too thin, which means that the plastic film plated 50000m2 requires only about 1 kg of high pure aluminum, and its shielding and shielding performance is much lower than the stamping aluminum foil (metal pure aluminum foil), so the aluminum -plated film is packaged in plastic composite packaging packaging The use of substrates cannot replace the pressure delayed aluminum foil.

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