: Found strange red duplicate of artwork in Illustrator file called "white underneath". What is it? This might be an error but i've got a feeling its something to do with preparing artwork for
This might be an error but i've got a feeling its something to do with preparing artwork for printing.
I've received some packaging artwork from my client that i need to edit, it's made by a different graphic designer. It has two main layers, one called "artwork" which has the basic artwork on it, here is a selected area of it:
And then you have the second layer below it which is called "White underneath", and its a duplicate of the artwork but in red. Here is the same area on that layer:
I have not seen this before but i assume this is somehow related to making the colours print right? perhaps the red areas are meant to be printed white, perhaps to enhance the colours that will be printed over it? Am i in the ballpark here?
If that's the case then what is this technique called? When is it necessary to do?
Any help appreciated, seriously scratching my head over here.
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In printing, ink isn't always 100% opaque and some material on which the ink is applied will not absorb the ink much. The result might make the printed area look a bit transparent. It can happen when printing on clothes, vinyls, or metallic textures.
To make the printed area very opaque, the printer will apply an undercoating, like a base of white color, and the colored inks will be applied over that white area.
The red spot color you have in this file is probably a white base. Even if the color used in the layout is red, the ink used will be white or whatever the client wants as base. Sometimes metallic inks are also used for this because they are a bit more opaque than standard offset inks.
If the layer wasn't named "white underneath", another alternative could be that the layer was used for a spot/selective varnish.
If you plan to make a layout that will be printed on a paper stock, you can ignore that extra layer/spot color on your layout and use only the other elements.
You should in fact make sure that red spot color and layer is removed from your final print-ready file to not confuse the printer!
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