1, the printed material is not suitable. Silicone printing requires the use of materials suitable for silicone printing. If inappropriate materials are used, the printing will be red.
2. The printing temperature is not suitable. Silicone printing needs to be carried out at a suitable temperature. If the temperature is too high or too low, the printing will turn red.
3. The printing time is too long. Silicone printing needs to be completed in a proper time. If the printing time is too long, it will lead to red printing.
4. The printing pressure is not suitable. Silicone printing requires proper pressure. Too much pressure or too little pressure will lead to red marks.
5. Printing machine problem. If there is a problem with the printing machine, such as damage to the printing head or improper adjustment of the printing machine, it will also lead to red printing.