| 摘要 |
<p>Disclosed is a thermal print head (A) comprising a glaze layer (2) formed on an insulating substrate (1), a resistor layer (3) formed on the glaze layer, a conductor layer (4) so formed as to expose a part of the resistor layer which is to be a heat generating part (3c), and a protective film (5) so formed as to cover the conductor layer (4) and the heat generating part (3c). The protective film (5) includes a lower first protective layer (5a) and an upper second protective layer (5b) which overlaps the first protective layer (5a) while constituting the outermost layer. The first protective layer (5a) has a hardness of 500-800 Hk and a thickness of 1-2 µm. The second protective layer (5b) has a hardness of 1000-2000 Hk and a thickness of 5-8 µm.</p> |
