印刷厂印刷刊物时的四色黑,如何处理效果好
How to deal with the four-color black when printing publications
印刷厂印刷颜色的时候，对黑色有一个称呼，即“4色黑”，这是什么意思呢，在常见的印刷是CMYK模式是如何实现黑色印刷的呢？我们一起来看看吧。
When printing color, the printing factory has a name for black, that is, "4-color black". What does this mean? How does the common printing mode CMYK realize black printing? Let's have a look.
很多刚做设计的设计师（特别是插画师）在选择黑色的时候，都会选择C:93,M88,Y89,K80的黑：
Many designers (especially illustrators) who have just done design will choose black color of C: 93, M88, Y89, K80 when choosing black color:
由于很多情况他们都是在RGB颜色哪里直接调色，在转化成CMYK的时候，黑色就会变成这个黑了，殊不知这个色，会让你的印刷品的背面，脏得一塌糊涂，由于每个颜色都几乎覆盖了80%以上的油墨，在飞快的印刷中，油墨还没干透，下一张就已经印好，盖在这张上面，要知道，印刷157g铜版纸，每小时是可以去到10000多张的，而且你不是印100几十张，也有1000张，1000张按A4纸的大小，也有10KG，更别说你是印画册，1000张下来，就是80多KG了，这重量压下来，背面肯定会沾到这些不干的油墨。
In many cases, they directly mix colors in RGB colors. When they are converted to CMYK, black will become this black. It is unknown that this color will make the back of your print dirty. Since each color covers almost 80% of the ink, the ink is not completely dry in fast printing. The next one has been printed and covered on this one. You should know, 157g coated paper is printed, More than 10000 pieces can be printed every hour. Besides, you can print not only 100 dozens of pieces, but also 1000 pieces. 1000 pieces can also be 10KG according to the size of A4 paper, let alone you can print a picture album. If you print 1000 pieces, it will be more than 80 KG. The back will definitely be stained with these non dry inks when the weight is pressed down.
如果是文字的话，印刷厂会都会帮你把这颜色改成C0,M0,Y0,K100，如果是插画、图片类的话，在印刷过程中，发现了，要么修改文件，要么喷多点粉（色块小的可以），然后把速度降下来。还有个办法就是换机器，换成UV机来印刷，不过成本很高，而且油墨偏暗，没有普通油墨那么鲜艳。
If it is a text, the printing factory will help you change the color to C0, M0, Y0, K100. If it is an illustration or a picture, it is found during the printing process that you can either modify the document or spray more powder (small color blocks are OK), and then reduce the speed. Another way is to change the machine to a UV machine for printing, but the cost is high, and the ink is dark, not as bright as ordinary ink.
在这里，还是啰嗦一下，印刷的黑色，就是K100，但是这个黑色做大面积的话，印刷出来不够黑，有点灰色，在面积比较大的时候请设置为：C30-40，M0，Y0，K100，印刷出来颜色饱和，单色加了30的蓝，印刷出来在阳光下隐隐泛蓝色，颜色看起来较黑。全版黑色值设置：C40，M20，Y20，K100，印刷出来黑色很有厚度，很有光泽。
In this case, the printed black is K100. However, if the black is large enough, the printed black is not black enough. It is a little gray. When the area is large, please set it to C30-40, M0, Y0, K100. The printed black is saturated. The monochrome is added with 30 blue, and the printed black is faintly blue in the sun. The color looks black. Full version black value setting: C40, M20, Y20, K100. The printed black is very thick and shiny.
可能有人问，这黑色的颜色设置小是多小，大又是多大呢，这个好难把握，我个人的经验是，正文的字，你用K100足够，如果是标题字，就用C30,M0,Y0,K100,面积再大一点点的，可以用C40,M0,Y0,K100，要是满版黑色，就为了衬托出产品的，就用C40，M20，Y20，K100。
Some people may ask how small and how big the black color is, which is hard to grasp. My personal experience is that K100 is enough for text characters, C30, M0, Y0, K100 for title characters, C40, M0, Y0, K100 for larger ones, and C40, Y0, K100 for full version black characters.
如果你调色，不知道这个颜色印刷出来会不会出现背面蹭脏的情况，个人的意见是，你把4个颜色的总值控制在250左右就可以了，毕竟这涉及到油墨和面积的大小。
If you mix colors, I don't know whether the back will get dirty when the color is printed. My personal opinion is that you can control the total value of the four colors to about 250. After all, it involves the size of ink and area.
The above is a detailed introduction to the printing of books and magazines in Jinan. I hope it will be helpful to you. If you have any questions, please contact us. We will provide services for you with our attitude https://www.sdhzyw.com/
