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Quality control for offset Lithography is a process that has quality checks embedded to make sure the process runs smoothly and that there is a high grade of printing. ==QC Steps== *The paper that is being used is visually inspected to make sure there are no rips or damaged pieces of paper. *The chemical plate is checked so that there is a right amount of chemical solution applied to the plate so that when the offset cylinder touches the paper that there aren’t any smudges. *During the printing process an operator has to check that there is no smudging between two or more sheets, where the ink is just coming off. If this does happen then quicker drying ink or a higher quality paper is required. *After the printing has taken place there has to be a check for quality on colour, image, shapes and type and other preference. *Quality control of the registration marks ensures that any colours produced beyond the edges of the bar are corrected immediately. A printing colour for each colour means that this could easily go wrong if a plate is not set up to a precision, meaning it will look out of focus and blurry. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Quality Control For Offset Lithography」の詳細全文を読む スポンサード リンク
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