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Glossary...
Crane Logo your bound galley expert
The definitive source for industry terms
When a term has more than one meaning, all explanations are displayed.
Hairline register   Printing registration that lies within the range of plus or minus one half row of dots. It is the thinnest of the standard printers' rules.  
Halftone   The process of converting continuous tone photographs into dots. A screening process done on a camera at the film stage of the preprinting process. (see LPI)  
Halftone   The use of screening devices to convert a continuous tone image (such as a photo), into a reproducible dot pattern, which can be more easily printed.
Halftone paper   A high finish paper that is ideal for halftone printing.  
Halftone screen   A sheet of film or glass containing ruled right-angled lines, used to translate the full tone of a photo to the halftone dot image required for printing.  
Hard Copy   Printed copy of the contents of a computer file. Also a show on T.V. that deals with real issues. (similar to a T.V. version of the National Enquir...)  
Hard dot   The effect in a photograph where a dot has such a small degree of halation that the dot shows quite sharp.  
Head margin   That space which lies between the top of the printed copy and the trimmed edge.  
Hickey   A term used to describe the effect that occurs when a spec of dust or debris (dried ink) adheres to the printing plate and creates a spot or imperfection in the printing.  
High bulk paper   Paper stock that is comparatively thick in relation to its basis weight.  
High key halftone   A halftone that is made utilizing only the highlight tones down through the middle tones.  
Highlights   The lightest tones of a photo, printed halftone or illustration. In the finished halftone, these highlights are represented by the finest dots.  
Hollow   That space on the spine of a case bound book between the block of the book and the case binding.  
Hot melt   An adhesive used in the binding process, which requires heat for application.  
House sheet   This is a term that refers to a paper that a printer keeps on hand in his shop.  

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