Coating Colour Kitchen and Coater - Process Info
Coating Colour Kitchen and Coater - Introduction and background
Coating improves the printability of the paper. Coated paper is thus a better advertising paper. Coating means a surface treatment with coating colour consisting of a filler dispersed i water together with one or more binders. The filler or pigment can be kaolin or chalk and the binder can be starch or latex.
The coating colour is pumped from a storage tank in the coating kitchen to a machine tank closed to the coater. Prior to the machine tank there is a screen to remove impurities in the coating colour. Coating colour is pumped from the machine tank and is further screened prior to the coater. The colour is applicated with a application beam and superfluous colour is scraped off with a blade beam. The remaining colour is screened and returned to the machine tank.