Thiele Kaolin, Sandersville, GA, says its DEKA 2000 (for flotation deinking) and DEKA 3000 (for wash deinking) combine the improved ink particle-collecting ability of modified kaolin with a deinking surfactant that is proven to give more efficient separation and removal of ink particles from recycled paper fibers.

Laboratory and plant tests show that the use of DEKA products can improve brightness, lower ERIC values, reduce reagent cost, improve stickies removal and improve process recovery.

The fine size of ink particles is one of the main causes for the traditionally poor deinking response of recycled paper. The high hydrophobicity of the modified kaolin particles and their relatively larger particle size permit the modified kaolin to act as a collector for these fine ink particles, resulting in better deinking, says the company. Adding the modified kaolin with a deinking surfactant produces a deinking reagent that gives more efficient separation and removal of the ink particles from the recycled paper fibers.

Thiele Kaolin, www.thielekaolin.com

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