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Spot colours & multiplying them

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Si47ash

Technical User
Dec 19, 2015
1
US
Hello,

I'm going to design a poster with just 2 spot colours, I named them Blue and Red. Blue is C:85 M:75 and Red is M:100 Y:95
There is a multiply effect that overlaps these 2 colours. So when I defined the spot colours in Adobe Illustrator or Photoshop and compared it with process colours with the same values I got the result showing in attachment.

I am going to print this and I don't know if I use 2 spot colours will I have the exact overlapped multiplied colour or just an strange mixed colour? (Left or right?)

Is it even possible to have multiply effect with just 2 spot inks?

Great day and many many thanks in advance,
 
 http://files.engineering.com/getfile.aspx?folder=96558524-e4b5-4111-8f93-bbaab73f15c4&file=Spot_Multiply.jpg
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