| 摘要 |
PURPOSE:To provide the titled printer head of which the ink jet direction is stabilized by subjecting the same to water repelling treatment by carbon fluoride having an unsaturated bond in the molecule thereof. CONSTITUTION:A plasma polymerization film comprising carbon fluoride having an unsaturated bond in the molecule thereof is formed to the periphery of the jet orifice 5 of the jet orifice 5 of an ink particle. As carbon fluoride, C2F4, C2F2, C3F6, C4F5 or C4F6 are used and a nozzle surface may be made of glass, ceramics or a metal other than plastics. When a substrate is stainless steel, close adhesiveness is slightly poor as compared with the other substrate. Plasma gas is hardly diffused into the jet orifice with a diameter of about 50mum and the deep part of the jet orifice is not made water repellent and ink injection is not inhibited. |
