ClassID:

127044

D21H23/44 - CPC Classification

Classification description:

Processes or apparatus for adding material to the pulp or to the paper 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; Paper being at least partly surrounded by the material on both sides Treatment with a gas or vapour

Recent Application in this class: