Designing of Coating Color for Double Coating. (II). Effect of Pigments and Binders in Under-Coating.

Filler and Coating Pigments for Papermakers

Historians attribute the Egyptians in the Nile Delta with preparing the first type of paper, from a marsh grass called Cyperus papyrus. They cut the plant’s stem into thin strips, softened them in the river, and then pounded them into thin sheets that were then left to dry in the sun. The resulting sheets were ideal for writing on, and Egyptians, Greeks, and Romans used them for record keeping,...

Hydroxyapatite coating on - - zlrconlausing glass coating technique

The aim of this study was to deyelop a noyel hydroxyapatite (HA) coating method on zirconia using glass coating technique. A borosi)icate glass, the mixture of the glass ttnd HA (3e, 50, 70, and 90 mass%), and the 100% HA were coated on two kinds of zirconia discs and fired at 900-950'C. After the final coating, the surface of the sample was etched for 3 min in an acid-mixture of 3% HF and 5%HN...

Solventless coating for Tablets: An alternative to conventional coating technique

There are many ways to coat tablets. Coatings are a very important part in the formulation of pharmaceutical dosage form to achieve excellent formulation quality (e.g., color, texture, mouth feel, and taste masking), physical and chemical protection for the drugs in the dosage forms, and modification of drug release characteristics. Most film coatings are applied as aqueous or organic-based pol...

Antimicrobial Double-Layer Coating Prepared from Pure or Doped-Titanium Dioxide and Binders

Fruit and vegetable containers with microbe-free surfaces can be made by coating with titanium dioxide (TiO2) particles or nonmetal (C, N, B, F) doped-TiO2 particles, using wear resistant polymers, such as zein, and paint, as the binders and to form a continuous binding phase. The doped-TiO2 powders absorb visible light radiation, and thus possess a higher antibacterial effect than non-modified...

Coating Materials