| 摘要 |
PURPOSE:To prevent elution of metal ion and mixture of metal powder, by using an intaglio printing of which the surface is ceramics and a doctor blade of which the edge is ceramics. CONSTITUTION:For an intaglio printing 1, a specific pattern is formed on an electrolytic copper layer of the intaglio printing 1, and hard chromium plating is processed thereon, and otherwise the same specific pattern is formed on a stainless plate and ceramic coating is covered thereon. Further, either of a flat board state intaglio printing or a cylindrical one is preferable as its form. For a doctor blade 21, the doctor blade ordinarily used such as a plate of not more than several mm in thickness or the like is coated by ceramics. At least a portion in contact with ink of the surface of the intaglio printing 1 is coated by ceramics. Further, at least the cutting edge of the doctor blade 21 is coated by ceramics. Inorganic nitrides, inorganic carbides, inorganic oxides, composite oxides, etc., are used as ceramics.
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