What is delamination?

The term ‘delamination’ generally refers to the large-scale peeling away of the top layer of the cardboard. The onset of delamination can also manifest as blistering, usually in the case of full-surface printing.

Blistering is characterised by a partial, blister-like lifting or splitting of the cardboard surface.

If the top layer of the cardboard peels away during the printing process, this usually requires extensive cleaning of the blanket.

Various factors can cause delamination.

Our advice is, first of all, to start runs with multi-ply cardboard only on well-warmed-up printing presses and to ensure that the cardboard is properly conditioned.

However, the press speed, the viscosity of the printing ink or the quality of the blanket can also influence the phenomenon of delamination.

Inadequate board strength, usually due to insufficient structural or interlayer strength, can also play a role.