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Films

Surface energy of the film is increased by ionization, flame treatment, or because the film contains some manner of “roughener” to improve adhesion of subsequent coatings. For print acceptors, Capstone® fluorosurfactants improve wetting and leveling of coatings for ink, improve adhesion, abrasion resistance, reduce transfer, and improve general “printability.” In a variety of coating applications, Capstone® fluorosurfactants can provide antistatic properties. In addition to wetting, Capstone® fluorosurfactants migrate to the top of a coating and thus encourage rewetting in multi-coat operations.

In release coatings, there are two general types of films: cast (polymer is dissolved in solvent, cast on a belt or drum, and the solvent is driven off and recovered) and extruded (melted resin is pushed through a die). Since Capstone® fluorosurfactants migrate to the liquid-air interface in coatings, they can impart release characteristics to that coating surface.

Overall, a variety of Capstone® fluorosurfactants can provide the performance benefits in film applications of anti-block, antistatic, improved surface properties, film leveling (even thickness), reduction in cratering (due to the presence of impurities), water repellency, wetting and film release (off the belt/drum without deformation, tearing or edge effects).

Capstone® Fluorosurfactants Literature

FS-10
FS-30
FS-31
FS-50
FS-63
FS-66