Black to gray gradients

[Finesse_gs]

I am having a hard time getting a specific light gray fading to black and not having a weird green chunk in the transition. I've tried so many things to fix it and can't. The last thing I tried is having the gray as it's own layer and making another layer on top with black to transparent gradient but it's still a weird green at the transition. If I change the gray it helps but I need to use that specific gray. I've made the image grayscale but it also changes the gray way too much. Can anyone help?!?

[c.pfaffenbichler]

So the issue is printing? 

What is the printing Color Space? 

What is the image’s Color Space? 

Please post the gardient file. 

[Finesse_gs]

Ok I'll upload the file. It's in the printing but you can also see it in the file in PS. When you grayscale it the green completely goes away both on screen and print.

I'm printing on a large format HP360 latex printer. 16bit, cmyk. I've tried rbg as well. The file is also 16bit, cmyk, tried rbg also. 

[Finesse_gs]

https://www.dropbox.com/s/h0po72hcciooudo/Gradient-small.tif?dl=0

[c.pfaffenbichler]

Doing this in CMYK is a bit of a problem because naturally the CMYK Space’s GCR will not take effect. 

That you start with a non-neutral grey makes it not completely qurprising that a hue exists in the final product. 

Is U.S. Web Coated the printer’s Color Space? 

[SJRiegel]

If the gray has values other than pure black in its mix, try adding the identical values to your black. This should make the transition smoother. 

[Finesse_gs]

I did that also. 🙂