| 摘要 |
<p>The method for cleaning the cylinders (C1-C1', C2-C2', C3-C3', C4-C4') of printing machines of the continuous type comprises a primary delivery stage which provides for delivering most or all of the solvent-containing cleaning fluid required for cleaning the printing machine's cylinders, that can be safely carried by the web (N) even in the subsequent drying stage, to one or both of the opposite surfaces of the paper web, upstream of the entire set of printing cylinders, by spraying or by any other controlled variable delivery technique, while the previously mentioned units (P) cleaning the sets of printing rollers have, in addition to the task of mechanical action, also been given the task of secondary delivery of the remaining quantity of the said solvent-containing cleaning fluid or a cleaning fluid containing little or even no solvent and proportionately rich in water, all so that the quantity of cleaning fluid delivered during the secondary stage by the cleaning units (P) equipping the printing cylinders is at least sufficient to keep the surfaces of the cylinders which are not in contact with the paper web.</p> |
