of a variety of colors, used as a basis for artwork and overlays. Achromatic The non-colors of black, white and gray. Acid Resist An acid-proof protective coating applied to metal plates... or vertical line. Alkali Blue Also called reflex blue. A pigment used in carbon black inks and varnishes to improve luster. Alley The blank space between columns of type, sometimes also... for masking mechanicals when photographing for plates. The amberlith area appears black to the camera, and prints clear on the resulting film. Angle Bar In "web-fed" printing (printing...

and uncoated paper stock? Uncoated stock paper is comparatively porous and inexpensive, and is typically used for such applications as newspaper print and basic black-and-white... basic printing inks (cyan, magenta, yellow, and black) needed to reproduce the image. As the paper is fed through the press, each single-color plate puts onto the paper the exact... to reproduce the original image. What is halftone printing? Halftone printing converts a continuous tone (solid areas of black or color) photograph or image into a pattern...