The paper bag machine is mainly used for the production and processing of shopping bags and gift bags. So, what is the reason for the edge warping of the paper bag machine? How to solve it?
Reason 1: The heat sealing temperature is too high 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 the normal temperature;
Reason 2: In the longitudinal heat sealing knife part, the running track of the composite film is not straight
Solution: choose the inner sealing substrate with low temperature heat sealing;
Reason 3: The film in the composite material has poor heat resistance;
Solution: re-select the surface substrate film;
Reason 4: The tension matching of the composite substrate is not properly controlled during the composite process, resulting in residual stress after curing and shaping, especially when the thickness of the composite film is thin, such failures are more likely to occur
Solution: Adjust the tension of each part of the composite processing equipment, and try to make the retraction rate of the two composite substrates equal.
Reason 5: The thickness of the production paper bag material is inconsistent;
Solution: Adjust the tension of the floating roller.
