What should I do if the screen printing of silicone products fades?

In the processing of silicone products, silk screen printing is an important process because it can imprint characters on silicone products. This function is very important for silicone buttons and other products. A good silk screen printing level can improve the quality of characters. , but in the process of screen printing of silicone products, sometimes the screen printed characters will fall off. So what is the reason why the characters will fall off after silk screen printing of silicone products?

1. The baking time or temperature after silk printing is insufficient. After the characters on many silicone products are screen-printed, they become blurry after not being used for a few times. This is mainly because the baking temperature and time difference are too far from the standard value and the temperature is too low. The ink is not fully cured. It is recommended to check the set temperature of the baking tunnel oven, the line speed of the tunnel oven, and whether the circulation fan is turned on.

2. The quality of the screen printing ink is too poor and cannot meet the standard requirements. You cannot use the wrong ink. Generally, silicone products use silicone screen printing ink, which has certain requirements.

3. The surface of the silicone product is too dirty and has not been cleaned.

4. It is also related to the surface brightness of the product. For example, compared with a silicone water coaster with a smooth surface and a corrugated matte silicone water coaster, the pattern on the watch strap is naturally not as stable as the water coaster.

5. There is also a curing agent component in the ink ingredients, which is divided into imported curing agents and domestic curing agents. The imported ones have better quality and better stability. It affects the adsorption of ink and silica gel, causing characters to fall off as soon as they are wiped. Therefore, the amount of release agent should not be too high during molding, and the surface must be kept clean during subsequent processing and storage. Silk screen product ink is a relatively important process, and it is necessary to ensure that the product's ink will not fall off during long-term use.

The following 4 points can prevent ink from falling off.

1. Use high-quality ink for printing to ensure the peel strength, wear resistance, and brightness of the product. High-quality ink can play a big role in printing silicone products.

2. The baking time after screen printing is short, resulting in the pattern not drying, so the pattern is prone to fading, so the baking process should be completed after screen printing to ensure sufficient drying.

3. The appearance of silicone products is affected. If the product is too dirty and dusty, the fuel injection will be seriously affected, so keep the product clean during fuel injection.

4. The screen printing screen needs to be kept clean at all times to reduce the occurrence of blocked mesh holes during the printing process and prevent the ink from falling off.