| 摘要 |
Method for partially applying high viscosity liquids to a supporting material whereby the liquid is applied by means of a nozzle which opens into an orifice, and is extruded through a screen on to the supporting material, which rests on a pressure-resistant substrate, but distinguished by the geometry of the nozzle being so arranged that the nozzle outlet slit opens into an orifice which feeds the liquid to the screen, and in that orifice an increase of pressure in the liquid is generated so that the pressure in the liquid at the nozzle orifice is higher than the pressure in the nozzle outlet slit. |
