The color is light: the temperature is too low or the pressure is uneven or the time is too short.
The pattern is blurred: too long time causes the ink to spread.
The surface of the pattern is dull: the pressure is too high or the temperature is too high.
Partial blurring of the pattern: uneven heat distribution in the hot stamping area.
The pattern has scars: the hot stamping time is too long.
The color of the pattern varies: the pressure is uneven or the transfer coating of the object is uneven.
Sticky paper: The temperature is too high or the transfer coating of the object is poor.