Avoid the large areas of single black K100 problem in book printing

In book printing, the large area single black K100 problem will appear if you don’t pay attention.
China Printing Masters will introduce to you how to solve this problem from the professional book printing company in China

1.For monochrome (spot color) printing:
You can print twice, but if there is a shallow net in pure black, it will be 50-70% on the original basis.
For example, the shallow screen is k60, so if it is printed twice, it should be adjusted to k35. It is best to have a standard proof for the printer to adjust.
The printed single black, that is, the effect of k100 printing is not very satisfactory, because the printer rubber-equipment reasons, this is a common problem.

2.For Black in four-color printing:
It is recommended to add c30~40, but you can add more.
The large black color block that came out of Garland was brighter and smoother from the side.

3.Change the color value to C30 K100 when printing
Someone might say that The black in hardcover book printing, just c100 m100 y100 k100 is not blacker?
Don’t do that! It can't be printed at all.
Because the adsorption capacity of paper for ink is at most 300. It means the sum of the four values of cmyk cannot exceed 300.

4.Printing paper selection:
Use high-quality paper in book printing when you are printing large areas of black.
Because good paper is not so dusty when it is printed, otherwise it is easy to dirty the plate. If the printer is careless, there will be a lot of dirty spots in the print.

5.The choice of printing fonts and lines:
If you use anti-white characters when printing large areas of black, do not use too small fonts, and do not use fonts with thin strokes.
Otherwise, the printing will be blurred, especially for larger plates such as folio plates.
In the same way, the above principles also apply to the white lines, the white lines should not be too thin, otherwise the printing will be blurred.

6.Overprint about 40% of cyan on the large black solid part.
When using the four-color printing process, in order to ensure the correct restoration of the gradation and color, the thickness of the ink layer of each color should be strictly controlled. Usually in four-color printing, the black solid density does not exceed 1.8. Printing a large area of black solid with this density will lack a solid visual effect.

7. Add a little bit cyan in Black when printing.
Black solid overprint a small amount of cyan in printing. From the hue, it is still black, but the visual effect will be thicker.
Originally, when only one color of black was printed on white paper, many reasons can cause white sand holes appeared on the black solid ground, and the black and white contrast was very conspicuous.
If a cyan flat screen is overprinted, it will expose cyan dots. The contrast between black and blue is less conspicuous, and the black background color can look more uniform and beautiful.

You need to choose a reliable book printing company whatever which cover materials you want to used. A professional printing company in China, they will provide provide high quality printed products, promptly sales team and reasonable printing price for you such as chinaprintingmasters.com. You can determine the specialization of a printing company through above information and get your reasonable book printing online quote.