House paints are formulated for a balance of durability and reasonable cost. More expensive high durability paints are used for automobile and aircraft bodies. Inks Distinctly different market forces drive the development of different types of ink. The ink used for newsprint, such as newspapers or paperback novels, must be cheap and have the consistency of a thick sludge to properly feed through the ink rollers of a printing press. True color quality is important for glossy magazines.
Flow characteristics are important for pens and computer printers.
The formulation of a good copy machine or laser printer toner depends upon its electrostatic properties. Cosmetics A number of advances in cosmetics have been made in recent years. The primary changes are in non-allergenic formulations and longer duration wearability. This is a very competitive market in which a particular look, marketing or convenient application can sometimes make a product more profitable than other factors. Detergents Detergents are a type of surfactant in that they change the surface tension of the solution.