Inking couple, at a printing press, has a controlled opening/closing action at the separation points between the ink fountain roller and the sections of the ink train and between them, in timings for the travel of ink particles

摘要

The inking couple (10), at a printing press, has an ink fountain roller (11) to take ink from the ink fountain (12) to be transferred by the ductor roller (13) to the ink train roller (14) for delivery to the inking rollers (22-25) around the plate cylinder (26). The separation points (27-29) between the ink fountain roller and the sections (30,31), and between them in the ink train, have a controlled opening/closing action by the times taken for the ink particles to travel through, and the final separation point (29) is held open for a set time duration.