What parameters need to be controlled during the drying and curing process of all resin carbon ribbon?

The drying and curing process of all resin carbon ribbon requires precise control of the following key parameters to ensure the quality and performance of the ribbon:

1. Drying temperature:

Control range: The drying temperature is usually between 60 ℃ and 90 ℃, depending on the formula of the carbon ribbon, the thickness of the coating layer, and the desired performance.

Importance: Drying temperature directly affects the evaporation rate of solvents and the solidification degree of toner. Low temperature can cause incomplete solvent evaporation, affecting the drying effect of carbon ribbon; If the temperature is too high, it may cause deformation of the carbon ribbon or excessive solidification of the toner, affecting the printing quality.

2. Drying time:

Control points: The drying time should be determined according to the drying temperature and the thickness of the coating layer, generally ranging from a few minutes to several tens of minutes.

Importance: Sufficient drying time can ensure complete evaporation of the solvent and sufficient solidification of the toner. Short drying time can lead to solvent residue, affecting the stability and printing effect of carbon ribbon; If the drying time is too long, it may reduce production efficiency.

3. Coating speed:

Control range: The coating speed is usually between tens of meters/minute and hundreds of meters/minute, depending on the production equipment and process requirements.

Importance: The coating speed affects the distribution uniformity and drying effect of toner on the substrate. Excessive speed may result in a thick toner layer and uneven drying; If the speed is too slow, it may reduce production efficiency.

4. Environmental temperature and humidity:

Control range: The temperature of the drying room is generally controlled between 20 ℃ and 30 ℃, and the humidity is controlled between 40% and 60%.

Importance: A suitable temperature and humidity environment helps to achieve uniform evaporation of solvents and stable solidification of toner. Excessive humidity may slow down the evaporation rate of solvents and even cause moisture absorption in carbon ribbons; If the temperature is too low, it may prolong the drying time.

5. Drying equipment status:

Control points: Keep the drying equipment clean and stable in operation, avoid frequent switching or temperature adjustment.

Importance: The state of the drying equipment directly affects the drying effect and production efficiency of the carbon ribbon. Regular cleaning and maintenance of drying equipment can ensure its stable operation, improve drying efficiency and product quality.

In summary, the drying and curing process of all resin carbon ribbon requires comprehensive consideration of multiple parameters such as drying temperature, drying time, coating speed, environmental temperature and humidity, and drying equipment status. By precisely controlling these parameters, the quality and performance of the carbon ribbon can be ensured to meet the requirements.