ink density
21History of printing — The history of printing began as an attempt to make easier and reduce the cost of reproducing multiple copies of documents, fabrics, wall papers and so on. Printing streamlined the process of communication, and contributed to the development of… …
22Etching — For other uses of etch or etching, see Etching (disambiguation), for the history of the method, see old master prints. The Soldier and his Wife. Etching by Daniel Hopfer, who is believed to have been the first to apply the technique to… …
23Ann Arbor, Michigan — For other uses, see Ann Arbor (disambiguation). City of Ann Arbor   City   …
24Barcode — For the taxonomic method, see DNA barcoding. A UPC A barcode symbol A barcode is an optical machine readable representation of data, which shows data about the object to which it attaches. Originally barcodes represented data by varying the… …
25Rome, Georgia — The Worst Place in the World   City   City of Rome …
26Paper — For other uses, see Paper (disambiguation). A stack of copy paper Paper is a thin material mainly used for wr …
27drawing — /draw ing/, n. 1. the act of a person or thing that draws. 2. a graphic representation by lines of an object or idea, as with a pencil; a delineation of form without reference to color. 3. a sketch, plan, or design, esp. one made with pen, pencil …
28Anilox — In printing, anilox is a method used to provide a measured amount of ink to a flexo printing plate.An anilox roll is a hard cylinder, usually constructed of a steel or aluminum core which is coated by an industrial ceramic whose surface contains… …
29Line art — Printmaking art techniques such as engraving, etching, woodcut and lithography are covered more fully in their respective articles. Line art is any image that consists of distinct straight and curved lines placed against a (usually plain)… …
30Drawing — For other uses, see Drawing (disambiguation). Male nude by Annibale Carracci, 16th century Drawing is a form of visual art that makes use of any number of drawing instruments to mark a two dimensional medium. Common instruments include graphite… …
