The first major reason: the heat sealing temperature is too high, too hot or the heat sealing time is too long, resulting in damage and wrinkles of the Paper Bag material; Solution: adjust the heat sealing temperature to normal temperature; The second major reason: In the longitudinal heat-sealing knife part, the running track of the composite film is not straight Solution: Use inner sealing substrate with low temperature heat sealability; The third major reason: the thin heat resistance in composite materials is poor; Solution: re-select the surface substrate film; The fourth major reason: the improper control of the tension matching of the composite substrate during the compounding process, resulting in residual stress after curing and setting, especially when the thickness of the composite film is thinner, such failures are more likely to occur The solution is to adjust the tension of each part of the composite processing equipment, and try to make the retraction rate of the two composite substrates equal; The fifth major reason: the thickness of the paper bag material is inconsistent.
Our company`s main businesses are: Paper Bag Machine, Paper Rope Machine, Paper Handle Machine, Paper Slitting Machine, Paper Rope and Paper Bag. If you have any need, please order.
