Use of anionic surfactant/dispersant blends for the deinking...

Details Use of anionic surfactant/dispersant blends for the deinking... Use of anionic surfactant/dispersant blends for the deinking...

D - Textiles, Paper

21

C

9/1

D21C 5/02 (2006.01)

Patent

CA 2026055

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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