Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste
162 5, 162 8, D21C 502
A composition and method for the improved deinking of groundwood newsprint is disclosed. The composition comprises an amount, effective for the intended purpose, of: 1) an anionic surfactant, e.g., the ammonium or sodium salts of a sulfated ethoxylate derived from a 12 to 14 carbon linear primary alcohol blend, and 2) a dispersant, e.g., naphthalene-formaldehyde condensates.
The method comprises administering a sufficient amount of this combined treatment to a sample of groundwood newsprint for which treatment is desired.
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McCutcheon's, 1975, pp. 45, 236.
Betz PaperChem Inc.
Hastings Karen M.
Paikoff Richard A.
Ricci Alexander D.
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