In the actual printing of large background color picture album, we often encounter the phenomenon of false printing. To solve this kind of problem, we need to have some experience in this aspect. Xiaobian summed up some solutions in the printing process of large background color brochures. Let's talk about the solutions to this problem in detail.

我們會(huì)考慮到印刷壓力與紙張的問(wèn)題，總認(rèn)為壓力過(guò)小、紙張不好等，通常在調(diào)整印刷壓力無(wú)法問(wèn)題的時(shí)候，只可以換紙，但這樣不但增加成本，而且延誤時(shí)間。下面我們通過(guò)調(diào)整印刷工藝的方法可以使這一問(wèn)題得到根本的。

First of all, we will consider the problems of printing pressure and paper. We always think that the pressure is too low and the paper is not good. Usually when the problem can not 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. Now we can solve this problem by adjusting the printing process.

在實(shí)際生產(chǎn)中常遇到30%～50%的紅版和100%藍(lán)版疊印的藍(lán)色實(shí)地，由于紙質(zhì)不好常出現(xiàn)紅網(wǎng)發(fā)花，而改用紙質(zhì)好的紙張問(wèn)題便，非常明顯然這是紙張的原因。但也可以通過(guò)對(duì)工藝的調(diào)整這一問(wèn)題。

In the actual production, we often encounter 30% - 50% of the red version and 100% of the blue version of the overprint blue field, because the paper is not good, often appear red net hair, and change to paper good paper problem will be solved, obviously this is the reason for the paper. But this problem can also be solved by adjusting the process.
  

經(jīng)過(guò)分析，由于四色機(jī)是濕濕疊印，在濕的實(shí)地上疊印另一色墨的時(shí)候，轉(zhuǎn)印的效果比較差，油墨轉(zhuǎn)移率低，試著將品紅和青的印刷色序調(diào)換，先印刷品紅網(wǎng)，這樣品紅網(wǎng)可100%向紙張轉(zhuǎn)印，轉(zhuǎn)印率達(dá)到很高，而青版實(shí)地有一半以上的面積也可直接轉(zhuǎn)印在紙張上，這樣印出的印刷產(chǎn)品果然非常的平實(shí)，問(wèn)題得到了根本的，即使換用質(zhì)量差一點(diǎn)的紙張也可以印實(shí)了。

After analysis, due to the four-color machine is wet overprint, in wet field overprint another color ink, the transfer effect is poor, ink transfer rate is low, try to magenta and cyan printing color order exchange, first print magenta screen, so magenta screen can be 100% to paper transfer, transfer rate is very high, and green version of the field has more than half of the area can also be directly transferred on paper, this is very important The printed products produced by the sample printing are really flat, and the problem has been fundamentally solved. Even if the paper with poor quality is used, it can be printed.

膠版紙印刷畫冊(cè)封面，版面有大面積的藍(lán)色實(shí)地。印在銅版紙，效果非常的好，而膠版紙的時(shí)候發(fā)花現(xiàn)象比較嚴(yán)重。由于藍(lán)色在二組，紙張親墨性比較差，與油墨結(jié)合不牢，印上的藍(lán)墨會(huì)在后兩組橡皮布上反剝下來(lái)一部分。于是我們調(diào)整了印刷色序，將藍(lán)版放在了后一組，印刷發(fā)花故障得到了排除。

Offset paper printing album cover, the layout has a large area of blue field. Printed on coated paper, the effect is very good, and offset paper when the phenomenon is more serious. Due to the blue in the second group, the ink affinity of the paper is relatively poor, and the ink is not firmly combined, the blue ink on the latter two groups of blanket will be peeled off. So we adjusted the printing color sequence, put the blue plate in the latter group, and the printing problem was eliminated.

通過(guò)以上兩個(gè)故障的排除，發(fā)現(xiàn)印刷色序?qū)τ湍D(zhuǎn)移的影響非常的大，尤其是多色印刷濕濕疊印，根據(jù)不同的活件靈活調(diào)整印刷色序是非常必要的。

Through the above two troubleshooting, it is found that the printing color sequence has a great impact on ink transfer, especially for multi-color printing wet overprint. It is necessary to adjust the printing color sequence flexibly according to different live parts.