Coating Colors have a very simple composition, although the interachtions betwenn ingredients are far from simple. A coating color consists primarily of pigments dispersed in water, plus binder(s), cobinder and specific additives, e.g. thickeners, associative thickeners, optical brighteners, tinting dyes, lubricants, defoamers/deaerators, biocides.
- 100 parts Pigment, e.g. Clay (Kaolin), GCC-Ground Calcium Carbonate, PCC-Precipitated Calcium Carbonate, Talc, TiO2
- 0,1-0,3 parts Dispersant, e.g. polyacrylates, polyphosphates, lignin sulfonates
- X parts of NaOH to adjust pH to 8.5-9
- 5-15 parts Binder(s), e.g. synthetic binder (XSB, SA, PVAc) and natural binders (starch, CMC, casein, soybean protein)
- 0.5-1 part Cobinder / Thickener, e.g. natural products (starch derivatives, CMC, soy protein, casein) and synthetic products (PVOH, PVP, HEUR, HASE, ACT)
- 0,5-0,8 parts Optical brightener
- 0,5 parts of other Additivers, e.g. lubricants (calcium stearate, wax, PE- or PP-glycols, soy lecithin/oleic acid blends), defoamer/degassing agent, biocide