Ethoxylated Acetylenic Diols

Foam Suppression

The branched molecular architecture of these additives disrupts the stability of air bubbles within the coating slip. Unlike silicone-based defoamers, these substances do not cause surface blemishes or interfere with the adhesion of subsequent ink layers. This dual functionality makes them suitable for high-speed application processes where air entrainment is a common challenge.

They work by concentrating at the air-liquid interface to prevent the formation of rigid films that would otherwise trap gas.

Coating Quality

Improvement in the leveling and uniformity of the coating is the direct result of using these surfactants in the formulation. They ensure that the coating penetrates the valleys of the paper surface without creating excess build-up on the peaks. This leads to a smoother printing surface and better ink receptivity.

The additives remain effective even in systems with high levels of electrolytes or extreme pH values.