| 摘要 |
<p>A dehydrator (10) is provided with a dehydration chamber (14) for dehydrating a solid film (80), and an infrared heater (40). The infrared heater (40) has: a filament (41) for emitting electromagnetic waves including infrared light, the filament (41) being disposed inside the dehydration chamber (14); and an inner tube (42) and an outer tube (44) for absorbing infrared light having a wavelength exceeding 3.5μm and covering the filament (41). The solid film (80) transmits at least some near-infrared light, and the pre-dehydration moisture content of the solid film (80) is greater than 0% by mass and equal to or less than 1% by mass. In any of a plurality of heater rows (29), any of the infrared heaters (40) constituting the row is disposed so as to be misaligned in the overlapping direction and in the perpendicular direction relative to the infrared heaters (40) constituting an adjacent row.</p> |
