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Causes and countermeasures of hot stamping failure of thermal transfer film

Views:845Time:2021-09-09
How to deal with the above three situations?
1. Adjust the position of the black color mark so that it is aimed at the photoelectric eye.
2. Adjust the sensitivity of the photoelectric eye sensor.
3. Adjust the film-rewinding speed to be slower so that it can be sensed by the electric eye.
2. Causes of wrinkles in the thermal transfer pattern after hot stamping
1. If the temperature is too high, usually the second pattern will wrinkle after hot stamping.
2. The switch of the tension motor is not turned on or the spring pressure is too large or too small.
3. During the hot stamping process, the film frame roller moves with the probe, which causes the distance between the thermal transfer film and the rubber roller to be too close
4. The printing speed is not in harmony with the tension.
solution
1. Reduce the temperature to a suitable hot stamping temperature.
2. Turning on the switch of the tension motor may increase or decrease the pressure of the spring.
3. Adjust the distance between the thermal transfer film and the rubber roller, it is recommended to be between 1 cm and 2 cm
4. Lower the temperature or reduce the tension.
3. Reasons for the incomplete heat transfer pattern after hot stamping
1. The air pressure is unstable, resulting in insufficient hot stamping time or slower running speed of flat push.
2. When hot-stamping curved surfaces, the film-rewinding speed of the heat transfer machine will slow down, which will make the film stick to the fixture and the pattern will appear incomplete.
3. There is dirt, oil, moisture, etc. on the surface of the product.
4. The distance between the limit sleeve and the forming switch is too close, causing the film motor to run ahead of time, causing the front part to not be printed.
5. The pressure is too small, so that the spheronization jig cannot be rotated or the sliding of the horizontal push is slowed down.
solution
1. After adjusting the air pressure to make it stable, adjust the hot stamping time or increase the speed of the flat push one-way flow valve.
2. Adjust the hot stamping speed and film roll speed to make them coordinate with each other.
3. Use a clean cloth to clean the stains on the surface of the product.
4. Adjust the distance between the limit sleeve and the travel switch, so that the entire pattern can be printed completely.
5. Adjust the fine adjustment nut on the cylinder to reduce the pressure.

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