1. If the wrinkles are caused by inconsistent tightness or wavy edges at both ends of the film, the qualified film should be replaced for the veneer.　　

2. The two ends of the electric heating roll and the rubber roll are unbalanced, the pressure is inconsistent and the linear speed is unequal, which should be adjusted appropriately.　　　　

3. The film transfer roll is unbalanced, so the transfer stick of the veneer should be adjusted.　　　　　　　

4. The adhesive layer is too thick and solvent evaporation is not complete, which affects the viscosity. When pressed by pressure drum, paper and film slide. The amount of glue should be adjusted to increase the drying temperature.