| 摘要 |
<p>An al printing plate has an angle of contact >=40 degrees, pref. 60-80 degrees with distilled water before graining and/or anodic oxidn. To achieve this, the plate is heated 1 min. at 100-300 degrees C before or after graining and/or anodic oxidn. Used in offset printing. No intermediate subbing layer is needed in prodn. of the plate. Heat treatment can be carried out in dry air or with steam.</p> |
