At the moment when uv flatbed printers are popular, many technical problems related to uv flatbed printers and uv flatbed printing phenomena have also arisen. These common sense require users to master them. Today, follow Anderson to take a look at the uv inks for uv printers. Whether it’s solidified or not, the main ways to judge whether the uv flatbed printer ink is completely solidified are as follows, but under normal circumstances, everyone uses the naked eye to check the surface of the ink. Sometimes it seems to be solidified, but in fact it may not be. How to identify it, this requires a more professional way, but it is limited to uv ink;
1. Pencil hardness test, test by pencil hardness tester. If it meets the requirements, it proves that the ink has been completely cured. If it does not meet the requirements, you need to wait for a little time for curing and check whether the power of the uv lamp is appropriate and the network loan transmission speed of the uv curing machine, etc. Aspect factors
2. Hand rub test. Generally speaking, if the uv ink is not dry, there is a certain degree of oiliness, and it feels a little oily and reflective, because the uncured uv ink is bright, and the uv after curing The ink is in matt color, and then use our nails to buckle to see if it can be buckled. If it can be buckled, it means that the uv ink has not been fully cured. On the contrary, it means that it has been fully cured;
3. For pressure detection, use a weight with a flat floor, put a small amount of silk fiber on the surface of the product, use the weight to press on the cotton fiber, wait for a few minutes, then move the weight, if the cotton fiber will not stick to it , Which means that the ink has been completely cured, if the situation is opposite, it means that the ink is not completely cured;
4. Dropping solvent test. After dropping propionic acid solvent on the surface according to the solvent performance, if there is any change, it proves that the uv ink is not completely cured, because after the ink is completely cured, the internal molecular structure will change, and it will switch to double conversion. High curing is more complete, and a tight coating layer is formed as a whole with the ink;
5. Through the surface appearance inspection, the surface of the fully cured uv ink will be relatively transparent, will not show false shadows, and the overall effect will be relatively strong;
