The invention relates to a method for improving
surface energy of an aluminum plate by using a
plasma, which is characterized in that a
plasma generating device is used for generating the
plasma, andactivation treatment of the surface of the ordinary aluminum plate is implemented by leading the ordinary aluminum plate to pass through the plasma, so as to achieve the purpose of improving the
surface energy of the aluminum plate, then ink is jetted on the surface of the aluminum plate
after treatment, and the ordinary aluminum plate refers to an aluminum
alloy plate which leads the surface to form dense sand meshes by the technologies of electrolytic coarsening and
anode oxidation. The method has the advantages that the uniformity of the surface treatment is good, the method has the roles of
surface cleaning and
etching and can increase the contract specific surface area and improve the
wetting adhesion and the
spreadability, a
coating layer can be very thin, the method does not have the problems of uncoating and uneven
coating and simultaneously avoids the negative impacts on the surface appearance of the plate due to the use of a surfactant, the surface treatment is directly carried out on the surface of a sand mesh layer, the method does not use an intermediate layer,
active particles can generate strong chemical bonds, improve the adhesion and lead the press run of a produced printing plate to be high, the production cost is low and the treatment speed is fast.