Colloidal silica can be used as one component of microparticle retention systems in the “wet end” of paper manufacturing. Typically, a high surface area colloidal silica is used with a cationic starch, poly-acrylamide, or other cationic polymer to flocculate cellulosic fibers for use in the papermaking process. An optimized process will result in higher retention of fiber and improved water drainage on the web.
Advantage
-Ink colors and images hold to surfaces better and are less likely to penetrate the material below.
-Images printed on paper treated with colloidal silica are crisper and clearer.
-It is used to enhance the frictional and printing properties.
Features
-It facilitates flocculation of cellulose fibers for use in the papermaking process.
-Higher retention of fiber and improved water drainage on the web.
-Increases the dry strength of paper products.
