The causes of surface wrinkles during thermal transfer of the wood grain transfer machine may be:
1. The thermal transfer film itself has wrinkles.
2. Unbalanced transfer pressure and uneven force on the tube position will cause pressure deviation and cause wrinkles.
3. The rubber roller for thermal transfer has cracks.
4. The preheating temperature of thermal transfer is too high.
5. The tension is too small or too large.
