Experience in digital printing
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Large format design
You don't have to always limit your design to a standard format size. Web digital presses, such as Agfa's Chromapress, can print larger webs because of the use of continuous paper strips. You can print posters and flags up to 11.8 meters long.
Make black richer
When printing black (especially overprinted text), black is usually mixed with a certain proportion of the other three colors to make the black richer. The rich black color makes the underlying color not reveal. The ratio of the other three colors varies with different presses, paper types, background colors, and the overall effect you want.
Gradient
To prevent uneven stripes in the color mixture or gradient, the gradient is usually controlled to 1 to 4 inches. Use a lighter color with a gradient of no more than 50%. Using image processing software to add noise to the gradient can also help reduce unevenness.
image
Some printing systems offer screening options that improve the quality of halftone images. You can ask printer operators for samples that are printed at different screen and color adjustment settings to choose the setting that works best for you.