To ensure a good transferability and image formability of the ink, thereby improving a printing quality by adjusting water content of ink on respective rollers in the printing unit of a printing machine.
The printing machine has such a configuration that an ink bottle 35, an ink original roller 36, a delivery roller 37, a kneading roller 38, a reciprocating roller 39, an ink fixing roller 40, a plate cylinder 32, and a blanket cylinder 31 come into opposite contact with each other in series. The printing machine includes a first ejection nozzle 51, a second ejection nozzle 52, and a third ejection nozzle 53, as a humidity-controlled air supply unit, the first ejection nozzle 51 supplying humidified air to the opposite contact part of the distributing roller 38 and the reciprocating roller 39 from the downstream side of the opposite contact part in the rotational direction, the second ejection nozzle 52 supplying the humidified air to the opposite contact part of the reciprocating roller 39 and the ink fixing roller 40 from the downstream side of the opposite contact part in the rotational direction, and the third ejection nozzle 53 supplying the humidified air to the opposite contact part of the ink original roller 36 and the delivery roller 37 from the downstream side of the opposite contact part in the rotational direction.
| WO/1997/033750 | PRINTING UNIT FOR WATER-BASED INKS |
| JPH03215041 | SELECTING APPARATUS OF INK FOR WRAPPING MATERIAL |
MAKINO SHIGEO
KAJITANI FUMITO
SHOJI YUKIKAZU
KANDA YOSHIAKI
TANABE YASUNORI
