Paper printing machines are used more and more widely in our lives. Today we are talking about the matters needing attention before and after the paper selection of paper printing presses.
Paper is one of the four major elements of printing. Paper is generally divided into: letterpress printing paper, newsprint paper, offset printing paper, coated paper, book cover paper, dictionary paper, copy paper, board paper, etc.
Note before paper selection:
When choosing the specifications of the paper, in addition to paying attention to the size of the paper, it is also necessary to choose an appropriate basis weight. Generally, on the premise of meeting printing and use requirements, paper with a smaller basis weight should be selected as much as possible, so as to reduce the cost of publications.
Note after paper selection:
After the variety and specifications of the paper used are selected, the quality grade of the paper must be selected very carefully. In other words, it is necessary to be familiar with the characteristics and quality conditions of various products of various paper mills and to understand and grasp the changes at any time.
After the selected paper varieties, specifications, manufacturers and quality grades are determined, it should be noted that it is best to use products produced by one manufacturer in the same period to print the same book during the publishing and printing process. Otherwise, because the color of the same type of paper produced by different manufacturers in different periods is often quite different, it will cause the phenomenon of "sandwich" in the printed books.
If you want to know more product information, please continue to pay attention to Ningbo Ronghua Digital Post Printing Equipment Co., Ltd.