AKD is an alkyl ketene dimer based sizing agent that impacts paper and board hydrophobicity or water resistance. Sufficient hydrophobicity is important for packaging materials and it improves paper or board runnability in a coating process. Water resistance also improves printability and dimension stability of the final product during the converting process. In addition to AKD-emulsions, the new process is capable to produce unique Gamma-emulsion, which is based on two sizing components.
For more information, contact Antti Matula, Director, Marketing & Product Lines, Paper EMEA.
TAPPI
http://www.tappi.org/