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Paper
Printing paper and industry terms.
Industry: Printing & publishing
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Paper
Conditioning
Printing & publishing; Paper
Allowing paper to adjust itself to the temperature and humidity of the printing plant prior to use.
Sulphate
Printing & publishing; Paper
Alkaline process of cooking pulp also known as the kraft process. Wood chips are cooked to a high brightness without fibre degradation in a substance of sodium sulphate and sodium sulfide.
Registration
Printing & publishing; Paper
Alignment of one element of a form in relation to another. Also, alignment of printed images upon the same sheet of paper.
Four-sided trim (trim 4)
Printing & publishing; Paper
After the job is printed and folded, a trim will be taken off all four sides to remove any reference or registration marks and give a clean edge to the pile of sheets.
Size or sizing
Printing & publishing; Paper
Additive substances applied to the paper either internally through the beater or as a coating that improves printing qualities and resistance to liquids. Commonly used sizes are starch and latex.
Fibrillation
Printing & publishing; Paper
Act of loosening the fibrillae during the mechanical process of beating the fibres in preparation for papermaking.
Back cylinder pressure
Printing & publishing; Paper
Additional pressure applied through the impression cylinder assisting the image transfer to the press sheet.