What is the reason for the broken eight side sealed food packaging bag?tea pouch packing machine Manufacturing.tea pouch packing machine manufacturer

　　There are many kinds of packaging bags on the market, and the content is very complex. Octagonal food packaging bags are popular in the current packaging market because of their unique advantages. Broken bag is an important factor affecting product packaging quality. There are many factors that affect the breakage of octagonal food packaging bags. The following is Giant Plastic Packaging Factory's analysis of the reasons for the broken octagonal food packaging bags?

　　1. Bag making process: the bag making temperature is too high, resulting in the decline of the performance of the heat sealing material at the heat sealing position, affecting the bag breaking rate; Excessive bag making pressure will cause extrusion of heat sealing materials at the heat sealing part, reduce the sealing heat sealing effect and crack the packaging bag.

　　2. Material: the material should have enough thickness. If the thickness is insufficient, the strength of the packaging bag will be insufficient, and then the packaging bag will break; If recycled materials are added to the materials, the strength of the packaging bags will be insufficient, causing the packaging bags to be broken.

　　3. Impact of packaging materials: When packaging some heavy or powdery items, such as salt, washing powder, etc., the air in the bag shall be discharged after filling these items and before heat sealing to reduce the stress on the inner wall of the packaging bag, so that the solid items can be directly stressed, thus reducing the damage to the packaging bag.

　　4. Peel strength of composite film: pay attention to the peel strength of composite film in the eight side sealed packaging bag. If the peeling strength of the composite film is too low to meet the requirements of multi-layer composite materials to be stressed at the same time, resulting in better force dispersion, the bag will be broken during the falling process. In addition, in the high-temperature cooking bag, due to the poor heat resistance of some adhesives, especially in the case of complex structures, edge sealing cracking and lamination of composite film will also occur during the high-temperature cooking process.

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