To help our clients address and avoid common issues that can potentially impact the quality of a job, we've gathered some useful information and answers to questions we often receive. Please feel free to contact us if you have any additional questions or concerns.
Dot Gain What is it? Dot gain, a common culprit of color variation during a press run is caused by a variation in ink feed or printing pressure — ink trap is often a main contributor to dot gain. On longer press runs, changes in pressroom humidity can change ink/water balance thus affecting color. Ink absorption by the paper can also vary (and with it the color) if the paper was sheeted from multiple rolls.
How can I help control dot gain? You can compensate for dot gain by lightening dark images by as much as 20%.
Color How can I be sure that my color will look right when it is printed? Download and use our Color Block Chart as a guide when choosing colors for your project. These CMYK values have been tested and are the most accurately reproduced colors on our press.
Halftones How do they work? Halftones can be printed with any ink color dense enough to hold the dots in all areas of the photograph. Varying the formuation of black ink can change the feeling of a halftone. Add blue ink for a cooler feeling. Add red ink for a warmer feeling.
How do I achieve the right halftone? Ink colors are usually best selected by evaluating tonal values of ink samples screened to 50% to 70% . This is because every area of a halftone consists of a screen value. To most easily achieve a high contrast halftone, use an original photograph with simple composition.