What are the reasons why the silicone screen is easy to fall off?

The reason why silicone rubber products sell well in the market is partly because of the practicability and reliability of silicone rubber. Now many products in many industries are developing silicone rubber products, not only because of their good performance, but also because the silicone rubber surface can be printed with various patterns, making silicone rubber products more competitive and more popular and recognized by customers. However, our silicone rubber products factory will find that sometimes the silk screen of silicone rubber products is easy to fall off when producing silicone rubber products, Then why does the silicone product ink fall off?

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

The character abrasion resistance of silicone products printed by silk screen is poor

Form of expression:

After several times of use, the characters of the silicone products printed by the silk screen become blurred.

Cause:

1. After screen printing, baking time is short or low temperature.

Note: The standard value of baking temperature and time difference is too far, and the temperature is too low.

2. Poor quality of silk screen printing ink

Note: The surface of silicone products will also affect.

After the silk screen, the characters will drop

Cause:

1. The surface of silicone rubber products is too dirty, which hinders the adsorption of screen printing ink and silicone rubber, causing characters to fall off at a stroke.

Note: The amount of release agent should not be too high during molding, and the surface should be kept clean during subsequent processing and storage.

2. Insufficient baking time or temperature after silk screen printing

Note: The screen printing ink should be completely cured.

Solution: Check the setting temperature of the baking tunnel furnace and the wiring speed of the tunnel furnace. Then check whether the tunnel furnace and circulating fan are turned on.

3. Problems of screen printing ink

Note: Do not use the wrong ink<use silicone screen printing ink>

Silicone product ink drops

Silk screen printing is a very important process. In the process of operation, pay attention to whether the surface of silicone products is clean, and pay attention to the baking temperature and time after silk screen printing. In particular, do not use low-quality silk screen printing ink or other materials to replace it in order to save costs. This will lead to undesirable situations and affect the quality of silicone products. In the end, it's not worth the loss!

After the transfer printing of silicone rubber, it is generally necessary to bake and solidify at high temperature. Because the material of silicone rubber products is different from other plastics, it is relatively heat-resistant. If it is not baked, the ink will fall off and the printing efficiency will be low. Weishun silicone rubber will be baked at high temperature before proceeding to the next step when it is used to pad print silicone rubber products.

How to avoid the silk screen of silicone products falling off:

The ink of silk screen products is an important process. It is necessary to ensure that the ink of the products will not fall off under long-term use. The following points can prevent the ink from falling off.

1. High quality ink is used for printing to ensure the peeling strength, abrasion resistance and brightness of the product. High quality ink can play a great role in silk screen printing of silicone products.

2. The pattern is not dry after the silk screen is completed, so the pattern is easy to fade, so the baking process should be completed after the silk screen to ensure enough drying.

3. The appearance of silicone products is affected. If the product is too dirty, too much dust will seriously affect the fuel injection, so keep the product clean during fuel injection.