The hydrophobic properties and printability of paper are conditioned by bonding systems. In these systems, aluminium salts are used as bridging agents for setting resin glues to the cellulose fibres.

Aluminium sulphate has been widely used for bonding in acidic environment. Over the last twenty years the development of mineral fillers introduced in the wet has promoted the use of new types of salts of aluminium: polyaluminium chlorides, used for gluing in neutral or pseudo-neutral environment.

Feralco offers the following products:

  • aluminium sulphate and SAMO 64 used in acidic environment especially for the manufacture of certain food contact paper or corrugated board
  • the Aqualenc and PLUSPAC ranges, used in neutral environment for all types of paper

For more information, please contact us.