Monochrome book printing and signing experience
We are a big printing company in Shenzhen China . We offer all book publications, hardcover book printing, papercover book printing, hardcover notebook, sprial book printing, saddle stiching book printing, booklet printing,packaging box, calendars, all kinds of PVC, product brochures, notes, Children's book, stickers, all kinds of special paper color printing products, game cardand so on.
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In order to ensure the stability and unification of the ink color of the batch products in the book printing, the signing system plays a vital guarantee role in the production process. There are also many techniques for signing in the traditional printing production practice.
First of all, if a machine is used to print the same variety of books, a large-page signature with uniform ink, beautiful text, and full dot will be selected as a sample after about 1000 prints, one of which will be used as a sample and the other will be placed after the fold. Look at the sample platform, so that you can compare it at any time. This is mainly because many printing factories are currently limited by environmental conditions, especially in the morning and evening. The natural light (yin, sunny) or the light is not high. To the standard, the distance, angle and illumination of the hanging proofs will have an impact on the human vision. The printed products will be different. The proofs on the sample table will be solved at any time, anywhere, at random, with angles. This problem plays a very good role.
Secondly, if the same variety of books and magazines need to be printed simultaneously by different types of printing machines, J2205 (05 machine) and JS2101 (BB machine) produced by Beiren are taken as examples. The quality of printed products varies greatly depending on the model. The product printed on 05 machine is full, the ink color is thick, and the text is beautiful. For the suitable ink color of the 05 machine to be chased by the BB machine, there will be a series of quality problems such as pulling dirty, font modification, and large dot enlargement rate. Next, the signing of the ink sample should take into account the defects of the BB machine itself. In order to prevent unnecessary quality accidents and ensure the uniformity of the ink color of the product, the high-quality products printed by the BB machine are more suitable.
Third, in the printing process of the book, the printing ink used by the printing house is relatively fixed, and the choice of paper has a certain influence on the signing. Some of the drying process of the ink is osmotic and dry, and the paper with relatively low smoothness is used. Due to the large amount of ink absorbed, the density of the ink decreases greatly after drying; usually, the ink with a suitable density after drying is wet. Gray and faint. Therefore, it is necessary to consider the ink color to be larger when signing.
In summary, for different products, different equipment and different raw materials, the signature can be flexibly mastered, and quantitative or analog quantification is very important.