Honeycomb panel and its production

Abstract

The invention relates to a method for processing a continuous honeycomb panel, said method comprising the subsequent steps of producing a continuous honeycomb panel from strips of material to form the continuous honeycomb panel in compressed form, at least partially expanding said compressed continuous paper honeycomb, producing a series of spaced cuts in at least one of the edges of said strips, and applying pressure on said at least one cut edge for bending said cut edge. The invention further relates to a paper honeycomb panel comprising series of paper strips adhered together so as to form said honeycomb panel, wherein said paper strips comprise a series of spaced cuts of equal depth in at least one edge of said strips, and said ends have been bent before a line connecting said the ends of said cuts. The invention further relates to a honeycomb panel processing apparatus, comprising at least two opposite rolls defining a nip between them for passing at least partially expanded honeycomb panel, said rolls comprising circumferential cutting edges extending within said nip. The honeycomb panel has improved adhesion when adhered to a cladding sheet, and improved thickness accuracy.

Dependencies are inferred from the claim text.