Paper being at least partly surrounded by the material on both sides (D21H23/34 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 an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper (D21H23/66 takes precedence; removing excess material D21H25/08) > Paper being at least partly surrounded by the material on both sides (D21H23/34 takes precedence)

Child Classifications

Navigate with arrow keys, Enter to open

• D21H 23/44 Treatment with a gas or vapour