What materials can't be printed by small UV printers!

People in the UV industry know that UV printers can print many kinds of materials and are also suitable for many industries, so many people call UV printers 'universal printers.' But omnipotence is not capable of everything, and it is still impossible. As for the previous article that can be printed, it has been introduced, and I will not write it here. Today, I will focus on the 'cannot' and the reasons why it can't.

1: The printing surface is too large or the arc is too large to print.

Most small UV printers print flat surfaces, although there are some The machine can print a flat surface with a small drop, but for a printing surface with a large drop, the ink ejected from the nozzle may be uneven, resulting in scattered ink, resulting in unclear and incomplete patterns. This will all happen.

Therefore, it is not recommended to print if the print surface has a large drop or a large arc.

Two: The printing surface is too smooth and the reflection is too strong

We all know that the ink of the UV printer is through the UV lamp and the photosensitive in the ink. The coagulant is used to spray and dry. If the reflected light of the printed surface is too strong, it will cause the light emitted by the UV lamp to be reflected back to the nozzle, causing the ink to be cured before it is ejected to the surface of the object. , It may cause the nozzle to be clogged or the ejected ink has been solidified, resulting in unclear or unclear print patterns.

3: The material of the printing surface that may react with the ink

UV ink is also a kind of chemical composition. Since it is a liquid chemical composition, it may touch To the possibility of changes in other chemical components. Although the surface of many printed materials is processed before printing, there is still the possibility of not cleaning up and printing. Therefore, it is necessary to avoid such things as much as possible, and remember to clean the printing surface before printing the object.

The above 3 points are what UV printers should try to avoid during printing, that is, they cannot be printed as mentioned at the beginning of the article. In addition, basically all can be printed.