1. Bag making process
The bag making temperature is too high, causing the performance of the heat sealing material at the heat sealing area to decline, thereby affecting the bag breakage rate; the bag making pressure is too high, causing the heat sealing material at the heat sealing area to be squeezed out, and the heat sealing of the door The effect is reduced, causing the packaging bag to break.
2. Materials
The material must have sufficient thickness. If the thickness is insufficient, the strength of the packaging bag will be insufficient, which will lead to the problem of bag breakage: too much recycled material is added to the material, and the strength of the packaging bag will be insufficient, which will also cause bag breakage.
3. The influence of packaging
When packaging some heavy or powdery items, such as salt, washing powder, etc., after filling the items and before heat sealing, the air in the bag should be discharged to reduce the stress on the wall of the packaging bag and allow The solid object is directly stressed, thereby reducing bag damage.
4. Peel strength of composite film
Eight-sided sealing packaging bags should also pay attention to the strength of the composite film. If the peel strength of the composite film is too low and it is difficult to meet the requirements for multi-layer composite materials to bear force at the same time, resulting in the force not being better dispersed, then during the fall process, it will Will cause bag breakage. In addition, in high-temperature cooking bags, due to the poor heat resistance of some adhesives, especially in some complex structures, cracking at the sealing edge and delamination of the composite film may occur during high-temperature cooking.