| 摘要 |
<p>Automatic production line for etched printing plates consists of an endless belt, from which the plates are hung horizontally and moved through several work stations for the fully automatic cleaning, wetting agent coating, etching, rinsing and drying. In the prefd. plant the etchant is flung against the plates by blade fitted wheels which ddip partly into the etchant solution. The process reduces both process time and labour requirements.</p> |
