Alkoxylated lanolin derivatives as deinking agents

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


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D21C 502




Deinking of printed paper is accomplished by repulping and defibering the printed paper in an alkaline aqueous medium containing a deinking composition to form an ink and pulp medium. The deinking composition is an alkoxylated lanolin derivative containing from about 55 to about 80% by weight of ethylene oxide and from about 15 to about 30% by weight of propylene oxide, based on the weight of the alkoxylated lanolin derivative.

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