Part I – OBAs and Color Reproduction
For printers, color is everything. Even paper has color. Paper color can drastically affect printed color. In the pursuit of predictable color, white isn’t just white anymore.
We’ve all seen ads for toothpaste and laundry detergent promising whiter whites. Optical brightening agents (OBAs) have been added to these products to create the whitening effect. OBAs stay on the surface of fabrics and teeth and literally change the color you see from yellowish to blue-white. Our eyes see blue-white as cleaner and brighter than yellow-white.