Air knife coater characteristics

Air knife coater characteristics

 When it comes to air knife coater, we must be familiar with it. It is papermaking equipment and belongs to a class of equipment accessories. So, what are its characteristics?

1,It has universality;

2, Convenient operation and maintenance;

3, The coating is more elastic;

4, Coating is not easy to produce scratches, material spots;

5, Do not contact with paint, suitable for pressure sensitive coating coating;

6, The structure is not compact, except for cardboard, generally not used for machine coating;

7, Coating solid content is low, generally 35%-42%, the highest is not more than 45%, coating viscosity 100-400Mpa.s;

8, Air knife is easy to be affected by dry paint, local blockage. In recent years, air knife coater is mostly used for small machine outside coater, plate press inside coater and carbon free carbon paper (CB surface) coating;

9, Air knife coating can be operated at the speed of a few meters per minute up to 600m, but the normal coating speed range is between 120-320m/min. Coating capacity up to 25g/m2, low to 3G /m2 are no problem.