Ink New formulation - Information


#1

Hi Walker,

Can you tell me/us a bit more about the new ink formulation ? (I understood the concept of the steric stabilization)

1 - What are the shades concerned by the new ink formulation ?
2 - When did you change it ? (so I can track the ink bottles with date/lot)
3 - Do you recommend new values for blending Cool & Warm curves on matte and photo paper ?

It seems that I now get more latitude between the cool and the warm color, cool ink is cooler, warm is unchanged.

Regards,

Frankie


#2

Anything with a LOT# from Mid-2017 on. All Pro (Dark through Very Light) got the treatment.

I did art-print tests with this ink and the % was the same for the blends but this may be because the fresh ink that I test with is generally the same color (especially on the cool side). Basically this formulation change ensured the ink that [what] I test with internally remains exactly the same [as what other people print with] externally for several years. So you may need to add 2% more warm . . .

best,
Walker


#3

Thanks Walker,

I got everything except the internally/externally part, can you please precise this ?

Frankie


#4

I had a typo. I edited.

best,
Walker


#5

Ok perfect.

Correct me if I’m wrong but as I understand it, the cool shift could be explained because the pigments of the old ink settled in the cartridge and then as the cartridge level decrease, the % of blue pigments increase.

If this is the case this overblue shift shouldn’t be permanent and will be “stabilized” while filling the cartridge with the new ink ?

Regards,

Frankie


#6

It’s the opposite actually. The old ink decreased in blue too much IMO: especially during international air-freight travel. This ink maintains the correct color with no drops in blue and no increase in magenta over time.

best regards
Walker


#7

Oh ok !
So the thing is that we actually never seen the real blue because the old ink lost part of it during the travel between you and me.

So what I’m use to call “100% blue” was in fact some sort of “100% blue minus 10%” so 90% of your blue.

Now that the new formulation is here I can actually see the real blue you worked on.

Did I get it right ?

Regards,

Frankie


#8

From one printmaker to another, you got it right.

best,
Walker


#9

Perfect, thanks for your help Walker !

Regards,

Frankie