With White Ink you have the ability to create a very unique label when using clear or metallic substrates. It is important to understand how white ink can affect your label appearance. The process color inks (CMYK) are transparent and simply “tint” the substrate and the inks take on the substrate’s appearance and opacity. A white ink underprint gives you the ability to change how your print will visually interact with the substrate.
When printing on a shiny chrome silver substrate, the CMYK inks will only “tint” the substrate and the whole label will have a shiny mirror appearance. The inks printed on a clear substrate will appear transparent. When you add a white ink under-print it block out the substrate and the inks appear bright and opaque. Sometimes you want certain areas of your label to take on the appearance of the substrate, while other areas you want to block out the substrate. For example, shiny chrome areas when printing on shiny chrome substrates, or clear or translucent areas on a clear substrate for LED’s, windows, etc.
White Ink can also be printed in varying amounts or shaded just as any of the other full color inks. With some creativity some very unique results can be achieved.
How to specify White Ink in your artwork.
If you are using Adobe® Photoshop®, specify your white ink using an Alpha Channel. Keep in mind that white will print underneath the other inks when you labels goes to print. Using the transparency grid is very useful when creating a white ink channel in Adobe® Photoshop®.
If you are using Adobe® Illustrator®, white ink should be specified as a Named Spot Color. You may find it useful to set the White_Ink Spot Color to appear as 100% Magenta or something visible so you can visualize where the white ink will print. This will not print 100% magenta as long as your artwork elements use the Named Spot Color you create for white ink and they will map to the white Ink channel. Your digital proof will also specify where white ink will be printed for your approval before going to print. If you are not familiar with the “overprint” attribute and the “seperations preview” it is a good idea to take the die line of your artwork and duplicate it next to your full color artwork and move over all of your White_Ink artwork elements side-by-side with your artwork. Be sure the alignment is correct, and make sure both reference off the die-line so they will line up correctly when they are assembled for print.
I’m not sure if I need white ink…
We can help! We will always discuss white ink options with you for any labels printed on clear or metallic substrates. We can incorporate white ink into your artwork for you, so you get your intended results.
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