On the other hand, increasing the concentration of caseinate led
to an increase in thickness ofthe paper sheets coated with caseinate
and caseinate/chitosan bilayer coatings. Moreover, chitosan application
as a second layer on caseinate-coated paper tends to increase
coating thickness. “bilayer coatings 2” produced by application of
chitosan solution on dry caseinate-coated paper were thicker compared
with single-layer coatings, and the 12% caseinate/chitosan
“bilayer coatings 2” were the thickest (Fig. 1).