To improve the thickening speed of silicone thermal transfer, we can start from the following aspects:
1. Optimize silicone formula and ink selection
Adjust the silicone ink ratio:
By increasing the solid content or adding an appropriate amount of thickener, the viscosity and consistency of silicone ink can be increased, making it easier to form a thicker coating during the thermal transfer process.
Pay attention to controlling the amount of additives to avoid excessive or insufficient effects on the fluidity and curing speed of the ink.
Choose high-performance silicone ink:
Choose silicone ink with high adhesion and fast curing characteristics to shorten the curing time and increase the thickening speed.
Make sure that the viscosity and curing temperature of the ink match the parameters of the thermal transfer equipment.
2. Improve thermal transfer equipment and process
Optimize heating methods:
Using more efficient heating methods, such as infrared heating or hot air circulation heating, can speed up the curing speed of silicone ink.
Precisely control the heating temperature and time to avoid excessively high or low temperatures affecting the thickening speed.
Improve equipment accuracy and stability:
Regularly maintain and calibrate thermal transfer equipment to ensure its accuracy and stability.
Use high-precision temperature and time control systems to achieve a more accurate heating and curing process.
Optimize pressure distribution:
Adjust the pressure parameters of the thermal transfer equipment to ensure that the silicone ink can be evenly attached to the substrate during the transfer process.
Avoid excessive pressure that causes the silicone ink to be squeezed out too much, affecting the thickening speed.
3. Improve the material and pretreatment of the substrate
Choose a suitable substrate:
Choose a substrate with a smooth surface and good ink absorption performance to improve the adhesion of the silicone ink and the uniformity of the coating thickness.
Avoid using substrates that are too rough or have poor ink absorption performance.
Pretreat the substrate:
Carry out necessary cleaning and drying treatment on the substrate to remove impurities such as oil, dust, etc. on the surface.
If necessary, a layer of primer or treatment agent can be applied to the surface of the substrate to improve the adhesion and thickening speed of the silicone ink.
4. Improve operating skills and environmental control
Strengthen operating training:
Perform regular training for operators to improve their operating skills and familiarity with thermal transfer equipment.
Ensure that operators can accurately grasp the operating parameters and process requirements of thermal transfer equipment.
Optimize environmental control:
Keep the temperature and humidity in the thermal transfer workshop within an appropriate range to avoid excessively high or low temperature and humidity affecting the thickness speed.
Clean and maintain thermal transfer equipment regularly to ensure that it is in good working condition.
In summary, the thickness speed of silicone thermal transfer can be effectively improved by optimizing silicone formula and ink selection, improving thermal transfer equipment and process, improving substrate material and pretreatment, and improving operating skills and environmental control.