the material on the applicator roll being subjected to a particular treatment before applying to the paper (D21H23/64 takes precedence)

Full Title

Processes or apparatus for adding material to the pulp or to the paper (applying liquids or other fluent material to surfaces, in general B05; processes for making continuous lengths of paper D21F11/00) > characterised by the manner in which substances are added > Addition to the formed paper > by contacting paper with a device carrying the material (D21H23/32, D21H23/46, D21H23/66 take precedence) > Rolls (D21H23/38 takes precedence) > Details thereof, e.g. surface characteristics, peripheral speed > the material on the applicator roll being subjected to a particular treatment before applying to the paper (D21H23/64 takes precedence)