Now we will use a large number of paper bags to pack goods in our lives, these paper bags are automatically produced by the paper bag machine, which provides a great help for the circulation of our goods, but there will be some problems in the production of paper bag machine equipment, warping is one of the more common, below we will introduce the causes of warping and solutions.
What are the reasons for the warping of the paper bag
1, the thickness of the production of paper bag material is inconsistent;
2, the heat sealing temperature is too high or the heat sealing time is too long;
3. In the longitudinal hot sealing tool part, the running track of the composite film is not straight;
4, the film in the composite material has poor heat resistance;
5, in the composite process, the tension matching control of the composite substrate is improper, resulting in residual stress after aging, especially when the thickness of the composite film is thin, such failures are more likely to occur.
Now that we know the cause of warping, let's go on to introduce the solution:
1, adjust the floating roller tension;
2, the selection of low-temperature heat sealing inner sealing substrate;
3. Adjust the heat sealing temperature to the appropriate temperature;
4, re-select the surface substrate film;
5, adjust the tension of each part of the composite processing equipment, and try to make the contraction rate of the two substrates of the composite equal.

It is precisely because we now realize the convenience and environmental protection of paper bags, our paper bag machine manufacturers only continue to innovate in order to make themselves bigger and stronger in this highly competitive market; China's packaging market has huge potential and development space, only we are ready to meet greater challenges in the future.