Apparatus and method for making pressboard from poly-coated...

Details Apparatus and method for making pressboard from poly-coated... Apparatus and method for making pressboard from poly-coated...

D - Textiles, Paper

21

H

154/40, 154/87

D21H 27/32 (2006.01) B27N 3/00 (2006.01) B27N 3/06 (2006.01) B29B 17/00 (2006.01) B31F 5/00 (2006.01) B32B 3/18 (2006.01) B32B 29/04 (2006.01)

Patent

CA 2014089

A system and process for fabricating pressboard from shredded paper coated with a thermoplastic material and a pair of facing webs includes placing the shredded poly-coated paper between the two traveling webs to form a composite, the composite then being passed in a manner to differentially shift the traveling webs relative to each other for enhanced bonding of the shreds to themselves and to the facing webs, by pressing them through a series of heated rollers defining a serpentine path while heating the thermoplastic material above its softening point, and pressing the composite together.

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