The paper bag machine is a device that automatically absorbs, glues and forms, creasing, pastes the bottom, and outputs the printed sheet or laminated paper according to the required size, and completes the production of paper bags at one time. So, what should I do if the bag is warped after the paper bag machine is heat-sealed?
Reasons: The thickness of the composite film is inconsistent; the heat sealing temperature is too high or the heat sealing time is too long; in the longitudinal heat sealing knife part, the running track of the composite film is not straight; the cooling is not sufficient; the curing time is not enough; the surface substrate film is heat resistant Poor performance; improper tension matching control of the composite substrate during the composite process leads to residual stress after curing and shaping, especially when the composite film thickness is thin, such failures are more likely to occur.
Countermeasures:
(1) Adjust the tension of the floating roller;
(2) Select the inner sealing substrate with low temperature heat sealing;
(3) Adjust the heat sealing temperature to a suitable temperature;
(4) adequate cooling;
(5) Fully ripening;
(6) Re-select the surface substrate film;
(7) Adjust the tension of each part of the composite processing equipment, and try to make the retraction rate of the two composite substrates equal.
