Brightness buffing

Bright Nickel. Nickel as electroplated from pure nickel salts is a dull grey, satin—like deposit that has to be buffed to obtain a bright finish. 

Bright Nickel, Nickel as electroplated from pure nickel salts is a dull grey, satin—like deposit that has to be buffed to obtain a bright finish. Brighteners are used to obtain bright deposits direcdy from the bath (117). The additives currendy used fall into two classes, which have variously been labeled primary and secondary, first class and second class, and carrier and brightener. The last is more commonly used in plating plants. 

Crocus abrasive Either synthetic or natural iron oxide, crocus is the basis of the rouge used in many fine polishing and buffing operations. It is very soft, approximately 6 on the Mohs scale, bright red, and contains a small amount of silicon dioxide. 

Today, most field effect liquid crystalline displays (LCDs) use alignment layers to achieve high contrast ratio and maximum brightness (26). The conventional alignment technique is mechanical rubbing, in which a substrate is coated with a thin polymer film and then buffed with a cloth to control the direction of liquid crystal on the substrate surface. 

---