Causes of broken food packaging bags produced by Dongguan manufacturers
1、 Reasons for packaging materials
The peeling strength of the composite film used in the food packaging bag is poor, that is, the composite fastness of each single film in the composite film is poor, and the lamination phenomenon of the composite film is easy to occur. When the heat sealing strength of the heat sealing position is high, under the impact of the packaging content or under the external force extrusion, the composite film lamination is easy to occur at the heat seal of the food packaging bag, resulting in air leakage and rupture near the hot sealing. It can be verified by blasting pressure (positive pressure method) and peel strength test.
2、 All kinds of hidden troubles in the production process
If the parameters of the heat sealing equipment are not set properly, it is easy to cause poor heat sealing quality of the food packaging bag, such as poor heat sealing (i.e. the heat sealing is not tight and easy to separate) or excessive heat sealing (i.e. the heat sealing strength is too high and the heat sealing root is broken), which is easy to cause air leakage and fracture. It can be verified by sealing performance (negative pressure method) and heat sealing strength.
Due to the particularity of food packaging bag, in the production of food packaging bag, whether it is the process or material, material thickness or heat sealing method, will be special treatment. In the finished product inspection of packaging bags, we usually have a strict inspection link for the strength and sealing of materials to ensure the good product quality of food packaging bags. http://www.dgbpk.com/
Dongguan Beite packaging materials Co., Ltd
Dongguan special bag, plastic bag, plastic bag, plastic bag