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Can you recommend surface active agents that are effective in waterborne packaging ink applications where FDA compliance for indirect food contact is desired?

Jeanine Snyder
Senior Development

Whether the substrate is coated paper for candy wrappers or high-slip flexible film for potato chip bags, good flow and leveling is required to achieve desired print results. With a trend towards low to zero VOCs, the choice of the correct surfactant becomes critical. Surfynol® 400 Series surfactants are compliant with the U.S. FDA’s 21 CFR 175.105, 175.300, 176.170 and 176.180 regulations and, thus, are ideal for waterborne packaging ink applications involving indirect food contact. The Surfynol 400 Series consists of four products of varying levels of ethoxylation which offer a broad range of performance. Surfynol 420 surfactant provides the best combination of dynamic wetting and defoaming; Surfynol 440 surfactant offers better surface tension reduction in formulated systems due to its higher solubility and enhanced hydrophilicity; and Surfynol 465 and 485 surfactants are completely miscible in water and can be used in combination with Surfynol 420 surfactant to provide even lower surface tension than the additives used alone. In addition, Surfynol SE-F surfactant also complies with 21 CFR 175.105, 175.300, 176.170 and 176.180 regulations. This product forms a stable emulsion in water at concentrations up to 75% by volume and, therefore, features enhanced ease of use. Surfynol SE-F surfactant will provide excellent wetting without generating foam. Whatever the printing condition or desired performance enhancement of the ink, this acetylenic diol-based surfactant series offers the best combination of wetting and defoaming without negative side effects such as loss in gloss or degradation of polymeric plate material.
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