There are many reasons for the wrinkle of vacuum packaging bags, of course, there are also corresponding solutions. The manufacturer of self-supporting zipper bag briefly introduces five willingness to cause wrinkle of vacuum packaging bag and puts forward corresponding solutions for your reference.
1. The thickness of the substrate is not uniform, and the thickness difference is too large.
The solution to the wrinkle of the vacuum packing bag is to replace the qualified film.
2. The unwinding deviation of the base material.
The solution to the wrinkle of the vacuum packaging bag is to adjust the position of the film so that it does not deflect in the transmission process.
3. When the amount of glue is too much or insufficient, the self-supporting zipper bag will slide between layers, and uneven gluing will also cause local wrinkles.
The method to solve the wrinkle of the vacuum packaging bag is to adjust the glue amount and evenly apply the glue.
4. The adhesive drying is not enough, the residual solvent is too much, the adhesion force is small, and the two kinds of substrate after the self-supporting zipper bag composite have displacement.
The method to solve the wrinkle of the vacuum packaging bag is to adjust the process parameters so that the adhesive can be fully dried and the residual amount of solvent can be reduced.
5. The composite film is rolled up directly without cooling or insufficient cooling, and the high temperature and soft composite film is easy to wrinkle.
The solution to the wrinkle of the vacuum packaging bag is that the composite film should be fully cooled before winding up. http://www.dgbpk.com/