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Method and apparatus for producing board and a board product

  • US 20030173044A1
  • Filed: 02/13/2003
  • Published: 09/18/2003
  • Est. Priority Date: 08/15/2000
  • Status: Active Grant
First Claim
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1. Method for producing a paperboard product comprising at least two layers, in which method paperboard raw material webs (4, 5, 6) forming the layers of the product are bonded to each other by gluing, characterized in that at least one of the webs is worked mechanically by pressing thereon a raised pattern so as to deform the web surface in a permanent manner.

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