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General Category => General Prepress => Topic started by: Slappy on January 13, 2022, 10:27:02 AM

Title: Mix a Pantone using only 2 Process inks
Post by: Slappy on January 13, 2022, 10:27:02 AM
Maybe I'm overthinking this but here's the setup:

We've been running a ton of shells in a PMS 287C & then imprinting several versions in black on a digital press.
Now, we want to run everything inline on a large digital press & I need to replicate that blue PMS with just Cyan & black.
In my head, that's not really a duotone (because most of the blue items will be vector) so how do I arrive at the closest mix to be near that PMS 287 as possible?
Title: Re: Mix a Pantone using only 2 Process inks
Post by: Joe on January 13, 2022, 10:53:16 AM
About the closest I can come is C=100 K=80 and it isn't all that close to PMS 287C
Title: Re: Mix a Pantone using only 2 Process inks
Post by: born2print on January 13, 2022, 11:07:50 AM
Yeah, kinda gets the tint right but the hue is terrible.
I don't know how to get a royal blue without a bunch of magenta :shrug:
Title: Re: Mix a Pantone using only 2 Process inks
Post by: David on January 13, 2022, 11:33:26 AM
to match 287 with just cyan and black is gonna be very tough.
Depending on how "close" you want it.
The actual makeup of 287 is Reflex Blue and Process Blue (not cyan) with a smidge of Black.
Reflex blue is on the red side, and the Process Blue is darker than Cyan.


Can you not run magenta as well on the digital press or are you looking to keep the click count down?

Title: Re: Mix a Pantone using only 2 Process inks
Post by: born2print on January 13, 2022, 12:56:20 PM
Forgive me if thhis is a stupid idea, and I don't know a lot about digital still, but if you have access to the liquid "inks"... what about doing a fountain mix by weight? at a ratio of 1 : 0.87 cyan:magenta?? then just let the press think it is cyan?
Title: Re: Mix a Pantone using only 2 Process inks
Post by: Slappy on January 13, 2022, 01:10:53 PM
Quote from: David on January 13, 2022, 11:33:26 AM
Can you not run magenta as well on the digital press or are you looking to keep the click count down?
This, trying to keep it as a 2-click count. Which then relates to...

Quote from: born2print on January 13, 2022, 12:56:20 PM
Forgive me if this is a stupid idea, and I don't know a lot about digital still, but if you have access to the liquid "inks"... what about doing a fountain mix by weight? at a ratio of 1 : 0.87 cyan:magenta?? then just let the press think it is cyan?
I think this will be the path, or just getting the pre-mixed digital version of the PMS 287 and sucking up the added cost.
If we have access to an ink mixing station and can create the "fake Cyan" that would be pretty cool.
Title: Re: Mix a Pantone using only 2 Process inks
Post by: David on January 13, 2022, 01:53:32 PM
curious if the cost of the special blue is less than the click charge.

What press is it going on?
Title: Re: Mix a Pantone using only 2 Process inks
Post by: Slappy on January 13, 2022, 05:11:53 PM
Indigo 12000
Title: Re: Mix a Pantone using only 2 Process inks
Post by: madbugger on January 13, 2022, 09:14:34 PM
Quote from: Slappy on January 13, 2022, 01:10:53 PM
This, trying to keep it as a 2-click count. Which then relates to...

We have a saying around here that goes: You can't make strawberry jam out of pig sh1t no matter how much sugar you use.

I think they either pay the click rate or have a color that is a fair way off