High quality paperboard and products made thereof

D - Textiles – Paper – 21 – H

Patent

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Details

D21H 27/38 (2006.01) D21H 11/08 (2006.01) D21H 27/10 (2006.01)

Patent

CA 2597267

The invention relates to a high quality paperboard comprising at least two plies, a first ply having good surface properties and strength, and a second ply for providing the paperboard with bulk wherein the second ply comprises hardwood CTMP. This paperboard has an internal strength and a bending resistance that is comparable with conventional high quality paperboard based on softwood CTMP. The invention also relates to products manufactured of the paperboard.

La présente invention concerne un carton de grande qualité comprenant au moins deux plis, un premier pli présentant de bonnes propriétés de surface et une bonne résistance et un second pli destiné à fournir au carton une épaisseur moyenne de feuille en liasse, le second pli comprenant en outre une PCTM de bois dur. Ce carton possède une résistance interne et une résistance à la flexion qui est comparable au carton conventionnel de grande qualité se fondant sur la PCTM de bois tendre. L~invention concerne également les produits fabriqués à partir du carton.

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