In the actual printing of large background album, we often encounter the phenomenon of false printing. To solve this problem, we need to have some experience in this field. In the process of large background color brochures printing, summed up some of the solutions in this respect, the following Jinan album printing and you talk about the solution to this problem in detail.
First of all, we will consider the problem of printing pressure and paper. We always think that the pressure is too small and the paper is not good. Usually, when the problem cannot be solved by adjusting the printing pressure, we can only change the paper, but this will not only increase the cost but also delay the time. We can solve this problem by adjusting the printing process. In the actual printing of large background album, we often encounter the phenomenon of false printing. To solve this problem, we need to have some experience in this field.
First of all, we will consider the problem of printing pressure and paper. We always think that the pressure is too small and the paper is not good. Usually, when the problem cannot be solved by adjusting the printing pressure, we can only change the paper, but this will not only increase the cost but also delay the time. We can solve this problem by adjusting the printing process.
Jinan album printing
In the actual production, we often encounter 30% - 50% of the red and 100% of the blue overprint. Because the paper is not good, the red screen often appears, and the problem of using good paper is solved. Obviously, this is the reason for the paper. But this problem can also be solved by adjusting the process After analysis, because the four-color machine is wet and wet overprint, when overprint another color ink on the wet field, the transfer effect is relatively poor, and the ink transfer rate is low. Try to change the printing color sequence of magenta and cyan, print the magenta screen first, so that the magenta screen can be 100% transferred to the paper, the transfer rate is the highest, and more than half of the green field area can also be directly transferred on the paper The printed products produced by the sample printing are really plain, and the problem has been fundamentally solved. Even if the paper with poor quality can be printed.
Offset paper printing album cover, the page has a large area of blue field. Printed on coated paper, the effect is very good, and offset paper when the flower phenomenon is more serious. Due to the blue in the second group, the paper ink affinity is relatively poor, and the ink is not firmly combined, the blue ink printed on the latter two groups of blanket will peel off a part. So we adjusted the printing color sequence, put the blue plate in the last group, and the printing hairspray problem was eliminated.
Jinan album printing through the above two troubleshooting, found that the printing color sequence has a great impact on the ink transfer, especially multi-color printing wet and wet overprint, it is very necessary to adjust the printing color sequence flexibly according to different moving parts.济南印刷厂讲解的内容 更多的内容 请咨询公司官网http://www.xinfengyinshua.cn/