Unlike paint, inks are transparent. Therefore if you print ink on a surface that is not white, you can see through the ink and this makes hard to see the ink color. To make a color more vibrant and make the print visible its required to print a white base layer before applying the colored inks. Under every colored pixel in a design, we print a white pixel first. This white ink is made to not see through and make the color pop out. Therefore it’s not possible to make semi transparent prints. However it is possible to make parts of the print fully transparent. This could for example be used when only printing a logo in the center or cover a case partially with a pattern. Make sure your print has no semi transparent parts, only 100% transparent or 100% covered parts.