It is more and more widely used in food packaging. The advantages and disadvantages of aluminum foil packaging bag are the bags containing aluminum foil in composite materials. It is widely used, which is related to the material characteristics of aluminum foil itself.
The biggest advantage of aluminum foil is that it is very good at blocking oxygen and moisture. The water permeability and oxygen permeability of aluminum foil are both 1, which is a good barrier material. In addition, the aluminum foil in the aluminum foil packaging bag has good heat resistance, good light reflection and luster, good shape at high temperature and low temperature, and is suitable for high temperature cooking, with a maximum resistance of 125 ℃.
However, as the material itself, the aluminum foil in the aluminum foil packaging bag also has its own limitations. First of all, the biggest disadvantage of aluminum foil is that it is brittle and easy to break. It is difficult to compound.
Secondly, the biggest disadvantage of aluminum foil is poor acid resistance, so when packaging fruit juice or acid products, it is generally not placed in the inner sealing layer, so as to ensure that it will not be separated by acid penetration. Moreover, it has no heat sealing property and can not be used as the innermost layer of the composite bag. http://www.ycritai.cn/
Dongguan Beite packaging materials Co., Ltd
Aluminum foil packaging bags, mask bags, self-supporting zipper bags, eight side sealing bags, red wine bags, dog food bags, beverage bags, box bags, packaging roll film, perforated fruit bags, Dongguan bate packing material Co., Ltd.