Will screen-printed plastic products lose ink in about a year?

No. The weather resistance of a good screen printing machine ink can reach 7 years. The reasons for deinking are ink mismatch and inability to work closely with the substrate. When the ink is printed on such materials, the ink will then dry and solidify after the glass. Shedding occurs, so choose a material that matches the ink. The ink is not completely cured because the UV curing tape is wrong, or the baking temperature and the ink curing temperature do not match. Silk screen printing is to leak the ink from the front onto the substrate under the mesh through the mesh on the mesh.