Dispersive Component

Coating Adhesion

Interfacial bonding strength depends directly on matching the dispersive component of the liquid dispersion with the underlying unbleached kraft paper surface. Low dispersive energy values in the applied formulation cause droplets to bead up rather than spread into a continuous film prior to thermal drying. Coaters adjust surfactant concentrations to lower surface tension until the dispersive component balances the solid surface energy of the cellulose fibers.

Inadequate balance between these energetic forces leads to interlayer delamination during subsequent creasing and folding converting steps.

Print Uniformity

Ink transfer consistency during flexographic printing relies on matching the dispersive component of the liquid ink vehicle with the pretreated paperboard substrate. Uneven surface energies create mottled halftone dots because pigment particles migrate toward localized high energy zones during solvent evaporation. Press operators control fountain solution chemistry to stabilize the dispersive component across wide reels of recycled folding boxboard.

Optimizing this non polar surface interaction prevents ink starvation defects and ensures high print density across high speed production runs.