2015 is the 100 year anniversary of TAPPI and we are celebrating the successes of the industry, people and companies who have contributed. Our celebration will focus on the innovative discoveries and breakthroughs by academic and industrial research groups over the past 100 years.
July 24, 2014 June
The Hollander beater has a circular or oval water raceway with a metal beater wheel at a single point along the raceway. The beater wheel has multiple "blades" mounted on an axle-like shaft, similar to the construction of a water wheel. The blades rotate to beat the fiber into pulp slurry. The Hollander beater, developed by the Dutch in the 17th century, produced pulp made from cellulose fibers and recycled fabrics. The beater replaced stampers which were large wooden hammers powered by water to crush materials through a pounding action. The Hollander Beater (invented between 1660 and 1682), was a method ... read more