WB Anti-Foam
Water-based anti-foam is a silicone or mineral oil emulsion defoamer added in trace quantities (0.1–0.5%) to water-based ink systems to eliminate air entrainment and surface foam caused by agitation during mixing, pumping, or high-speed automatic press printing. Foam in water-based inks causes pinhole defects, uneven ink film density, and poor mesh release, all of which degrade print quality. The anti-foam is fully compatible with acrylic and PUD binder systems without causing cratering or fisheye defects.
Key Applications
- Eliminating foam in WB inks on high-speed automatic presses
- Preventing pinholes and surface voids in flood coats and solid fills
- Controlling foam in mixing and storage of WB ink systems
- Defoaming discharge ink pastes containing activator chemistry
Frequently Bought Together
WB Thickener
Water-based thickener is a rheology modifier — typically an associative urethane or acrylic alkali-swellable emulsion — that increases the viscosity and body of water-based ink systems to achieve the correct print paste consistency for the application and mesh count in use.
Screen PrintingWB Binder
Water-based binder is a concentrated acrylic or polyurethane polymer emulsion used to increase the binder-to-pigment ratio in water-based ink formulations, improving film strength, adhesion, and washfastness, particularly in heavily pigmented or discharge-activated systems.
Screen PrintingWB Fixer / Crosslinker
Water-based fixer and crosslinker is a reactive polyisocyanate or aziridine-based additive that chemically crosslinks the acrylic or PUD binder polymer chains during the curing cycle, dramatically improving washfastness, chemical resistance, and bond strength to the fabric substrate.