Enzymatic Strength Development in OCC, 2007 TAPPI 8th Research Forum on Recycling

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The use of recycled fibers in the paper industry has been an economic and environmental requirement over the last 20 years. The increased recycling rate of fibers has resulted in a decrease in pulp strength and on the bonding strength between fibers.

Over the last 25 years, the use of recovered fiber to increase mill capacity has increased sharply. U.S. paper recovery increased from 36.8 million short tons/year in 1995 to about 68 million short tons/year currently (nearly 50% recovery).