| 摘要 |
<p>1509082 Removing dust from sheets ELECTROPRINT Inc 1 April 1975 [1 April 1974] 13340/75 Heading B6C A roller 9 and doctor blade 13 produce a film of limited thickness which wets medium 6 such that unwanted particulate matter adheres to the roller 9 or to the wetted medium 6. The liquid is preferably transparent, non-staining and viscous, e.g. silicone oils, iso-paraffins, polymers dissolved in trichloroethane. The roller 9 is preferably nickel plated steel. As shown two identical roller assemblies are in series immediately upstream of a printing station.</p> |
