The surface drying time and complete drying time of screen printing silicone ink vary depending on the ink type, printing process and environmental conditions. The following is a specific analysis:
1. Surface drying time
Self-drying printing silicone: The surface drying time can be adjusted between 15 minutes and 2 hours, which can be achieved by adding fast-drying, medium-drying or slow-drying additives.
Plastic screen printing ink: The surface drying time is 1-5 minutes under natural evaporation conditions.
Low-temperature silicone ink: It needs to be dried at 80-120℃ for 5-6 minutes, but the surface drying time is usually shorter than this time.
2. Complete drying time
Self-drying printing silicone: It takes 24 hours to completely dry at room temperature.
Plastic screen printing ink: The actual drying time is within 12 hours.
Low-temperature silicone ink: It needs to be dried at 100℃±5℃ for 5 minutes (infrared baking) or 190℃±5℃ for 20 minutes (vertical oven), but the complete curing time may be longer.
Pad printing silicone: It takes 3-5 hours to fully cure in the mold, and 24 hours to reach the final curing state after demolding.
3. Influencing factors
Ink type: Self-drying ink depends on environmental conditions, and low-temperature ink needs to be heated for curing.
Printing process: Silk screen printing, pad printing and other processes have different requirements for drying time.
Environmental conditions: Environmental factors such as temperature and humidity will affect the drying speed.