| 摘要 |
<p>A hot melt ink having a water auto-dispersability of at least 50 %, methods for using this ink to provide marks having a water auto-dispersability of at least 50 % and methods for using this ink to provide UV opaque masks are disclosed. The inks can be used in a conventional hot melt ink jet printer wherein the printhead (10) of the printer includes a fill port (12), a membrane cavity (14), a pumping chamber (16), a PZT i.e. piezoelectric transducer (18) and an orifice (20). The ink is placed in the printhead (10) through the fill port (12); the ink then passes through the membrane cavity (14), where it is degassed. The ink then flows into the pumping chamber (16). The printhead (10) is heated, so that the ink is melted to a liquid state prior to being ejected from the printhead (10). The liquid ink is ejected by activation of the PZT (18). As the substrate passes by the orifice (20), droplets of the hot, liquid ink are ejected through the orifice (20) onto the substrate thereby forming a mark on the substrate.</p> |
