Corrugated board is used for outer package or transport package purposes after having been transformed into containers by means ofso-called ‘folder gluers’ which glue folded sheets of corrugated board to convert them into boxes using plasticized
polyvinyl acetate homopolymer based dispersion adhesives (side-seam gluer). On modern machine tools, the adhesive is applied by means of electromagnetically controlled nozzles; depending on the thickness of the board up to three nozzles may be necessary.