System and method for producing an articulating board product having a facing with score lines in register to fluting

Abstract

A system and method for producing a board product made from paper products that have a pre-scored facing in addition to a medium (sometimes called fluting). Conventional corrugated board may feature a cross-corrugated medium and one or more facing that have no score lines that are imprinted (at least prior to assembly with the corrugated medium). Such a conventional board product may be inferior because any score lines that are imprinted will damage the underlying corrugated medium in some manner. A breakdown in the strength of the underlying medium leads to poor precision when the eventual board product is scored, cut, and bent. A lack of precision in folding a board product is known as fishtailing as any articulated portion of the board product may not maintain a precise plane of articulation when bent. Hence, the articulated portion “fishtails” out of alignment. Having precisely located impression lines in register to underlying flutes of a medium ensures correct and precise articulation.

What is claimed is: 
     
         1 . A board-making method, comprising:
 forming impression lines in a paper facing;   combining the paper facing with a paper medium with a plurality of flutes to the paper facing; and   forming an articulation point in the combination wherein a first impression line is aligned with a first flute and a second impression line is aligned with a second flute.   
     
     
         2 . The board-making method of  claim 1 , further comprising embossing the medium to form the plurality of flutes. 
     
     
         3 . The board-making method of  claim 1 , further comprising corrugating the medium to form the plurality of flutes. 
     
     
         4 . The board-making method of  claim 1 , wherein forming impression lines in the paper facing further comprises cutting intermittent perforations in a line in the paper facing. 
     
     
         5 . The board-making method of  claim 4 , wherein forming impression lines in the paper facing further comprises impressing score lines in the paper facing. 
     
     
         6 . The board-making method of  claim 1 , further comprising articulating the articulation point to form a first 90 degree fold at a first impression line and a second 90 degree fold at a second impression line. 
     
     
         7 . The board-making method of  claim 1 , further comprising articulating the articulation point to form a first secondary flute from the paper facing at the first impression line and a second secondary flute from the paper facing at the second impression line. 
     
     
         8 . The board-making method of  claim 1 , further comprising gluing the paper medium to the paper facing. 
     
     
         9 . The board-making method of  claim 1 , further comprising affixing a second paper facing with respect to the paper medium.