Preventing Strength Loss of Unbleached Kraft Pulp

Technical Report · Wed Apr 16 04:00:00 EDT 2003

DOI:https://doi.org/10.2172/810827· OSTI ID:810827

Hubbe, Martin ^[1]; Venditti, Richard; Heitmann, John

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1. North Carolina State University

Kraft pulp fibers lose inter-fiber bonding ability when they are dried during the manufacture of paper. Adverse environmental consequences of this loss include (a) limitations on the number of times that kraft fibers can be recycled, (b) reduced paper strength, sometimes making it necessary to use heavier paper or paperboard to meet product strength requirements, increasing the usage of raw materials, (c) decreased rates of paper production in cases where the fiber furnish has been over-refined in an attempt to regain inter-fiber bonding ability. The present study is the first of its type to focus on unbleached kraft fibers, which are a main ingredient of linerboard for corrugated containers. About 90 million tons of unbleached kraft fiber are used worldwide every year for this purpose.

• Research Organization: North Carolina State University (US)
• Sponsoring Organization: (US)
• DOE Contract Number: FC07-00ID13878
• OSTI ID: 810827
• Report Number(s): DOE/ID/13878
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
FIBERS
MECHANICAL PROPERTIES
PAPER
PAPER INDUSTRY
RECYCLING
SLURRIES