| 摘要 |
PROBLEM TO BE SOLVED: To print patterns of electrodes, wiring, color filters and others of an image display device by offset printing on a printing material of non- absorbing properties such as glass. SOLUTION: The humidity of a blanket 113 is regulated on the basis of an output of a sensor 12. A humidity regulating part has a structure wherein a humidity absorbing sheet 13 stretched in the shape of a belt is pressed on the blanket 113. The humidity absorbing sheet 13 is rotated by rollers 14a, 14b and 14c. In order to regulate the amount of impregnation of the blanket 11 with a solvent 3, a controller 17, fed back with the state of wetting of the blanket 113 with the ink solvent, controls a humidifying mechanism 16 for humidifying solvent ink and a drying mechanism 15 for drying the solvent ink. As the humidity absorbing sheet 13, nonwoven fabric, paper or the like having no dust producing property may also be used. As for a sensor head, it is also allowable that an ATR (total reflection) attachment fitted to an infrared absorption analyzing device is brought into close contact with the surface of the blanket. |
