Contact Screen: a photographically-made halftone screen having a dot structure of a graded density, used in a vacuum contact situation with a high contrast (litho) frame.
Contiguous: Placed adjacently; one after another.
contact screen
a photographic screen with dots of varying density that is placed in direct contact with a photographic film, used to produce halftone positives or negatives for making screen printing plates.
-Contact screen - type of half-tone screen in which the dots consist of slightly unsharp halos. Used to make half-tone images.
-Contamination - traces of chemicals that are present where they don't belong.
Screen RulingThis refers to the number of lines or dots per inch in both directions on a contact screen used to make halftones or separations. Screen rulings are available from 65 lines per inch to 200 lines per inch.
 See also: Display, Print, Yellow, Printing, Image
  
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