Non-Silicone Defoamer for Solvent Inks Eliminates Microfoams

Microfoams in solvent inks during high-speed printing cause "pinholes" on substrates. A Jiangsu gravure ink manufacturer reduced waste rate from 12% to near zero using Chemi Tech KM-8006 (acrylate polymer defoamer):

＞98% microfoam reduction: Foam layer thickness decreased from 15mm to 0.5mm at 0.3% dosage；

Press speed increased from 200 to 280 m/min；

Compatibility with NC/PU resins ensured no craters or floating.

Mechanism:

With surface tension ＜24 mN/m, KM-8006 penetrates foam films rapidly. Its hydrophobic chains rupture bubbles while fumed silica synergistically bursts membranes.

Case:

Added 0.4% in PET film ink：

Defoaming time shortened from ＞120s to 25s；

Zero pinhole defects in prints；

Foam in solvent recovery system reduced by 70%.