Use of surfactants having an HLB less than 10 in the deinking of

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste

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162 8, D21C 502

Patent

active

052000346

ABSTRACT:
A method for deinking dry toner electrostatic printed wastepaper is disclosed. The method includes administering a sufficient amount of an ethoxylated surfactant, propoxylated surfactant, esterified surfactant or alkanolamide surfactant having an HLB value of less than 10.0 to a sample of electrostatic printed wastepaper for which treatment is desired.

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Darlington, W. B., "A New Process for Deinking Electrostatic-Printed Secondary Fiber", TAPPI Proceedings, 1988 Pulping Conference, pp. 95-100.

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