High quality paperboard and products made thereof

Details High quality paperboard and products made thereof High quality paperboard and products made thereof

2011-03-01

2011-03-01

Hug, Eric (Department: 1741)

Paper making and fiber liberation

Processes and products

Multi-layer waterlaid webs or sheets

C162S125000, C162S130000, C162S141000, C162S142000, C162S149000, C162S150000

Reexamination Certificate

active

07897011

ABSTRACT:
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.

REFERENCES:
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patent: WO 9902777 (1999-01-01), None
Grandfeldt et al, Hardwood BCTMP—Improves bulk, smoothness and opacity, Pita,(2003), v.43, No. 7, pp. 43-46. Abstract.

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