Introduction to Deinking Surfactants, 1993 Recycling Symposium Proceedings
John K. Borchardt
Several surfactant properties play a significant role in determining deinking surfactant effectiveness. These properties are reviewed here and their role in deinking described. Important surfactant properties include critical micelle concentration, oil-water interfacial tension, surface wetting, surfactant foaming, cloud point, and phase inversion temperature. A better understanding of the role of basic surfactant properties in deinking processes will aid in selecting products for laboratory evaluation. Many of these surfactant properties can be measured in less time than required for deinking tests. Swift elimination of unsuitable surfactant candidates will permit more rapid selection of improved products. Some analogies between laundering soil removal mechanisms and mechanisms of ink removal from cellulose fibers are presented.
Introduction to Deinking Surfactants, 1993 Recycling Symposium Proceedings
