BLACKS ARE NOT ALWAYS AS THEY ARE APPEAR
You can use a number of combinations to create a black look to your artwork. Unfortunately what you may see on your screen may not translate effectively onto printed material. If the ink coverage is excessive this in some cases can cause problems in the printing and finishing process of your printed project. We do not recommend anymore than a total of 300% ink coverage.
Please see below our recommendation in regards to setting up black on your file:
100% K
Use this black for all text and line work. Keeping your text and fine linework to a straight solid black will ensure you get crisp clean text and eliminated any possibility of misregistration (when plates don't line up correctly).
100% K 45% C
Use this black for a deep black background. The extra 45% Cyan helps deepend the black without too much ink coverage that can cause drying and scuffing problems. Also be carefull where you use this deep black as colouring one object in deep black and another in straight 100% black may look identical on screen but when printed you will be able to see the difference. As a rule of thumb make all your objects the same colour combination.... with the exception of body copy text or line work see above for text and line work recomendations.