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<x-charset iso-8859-1>tflash wrote: ... > Which black ink do you use with MIS, their new black, >old black, or Piezo black? The new MIS "Double Density" black is being used. I have tested it to 100 hours in my fader, in the variable-tone MIS formula, and with a comparison Piezo black test strip in the same formula. They are equivalent with respect to darkness, color shift and fading. (The DD black had a hair of an advantage in all respects, but not enough to be significant. I've seen greater sample-to-sample and test-to-test variations.) >Has anyone tried to do either cold tone mix using >the Piezo color inks (just talking about using the >Piezo light cyan and light magenta, with either the >MIS quads or piezo quads) to further reduce metamerism? I have heard of nothing that would indicate any advantage to the Piezo colors for this purpose. There is so little metamerism with the MIS or Piezo-based variable-tone mix with the MIS Archival colors that I wouldn't spent much time to reduce it further. I suspect the Color Piezo claimed reduced metamerism is mostly due to the very weak black they use. (Likewise, the visibly increased metamerism when Generations black is used in the variable-tone mixes is one reason I don't recommend using that black.) It appears that the darker the black, the worse the metamerism problem. I think the Piezo/MIS DD black has hit the sweet spot, with respect to quads at least. After you take a look at how rock solid the MIS cyan is in the RIT fade testing, you'd be hard pressed to find any ink of any kind that could equal it. Until I see superior fade testing from others, the MIS cyan (and to a lesser extent magenta) is going to be a the one I recommend. I think the incredible stability that RIT found with that pigment is one reason the testing indicates that the colder the mix the more stable it is. Paul http://www.PaulRoark.com - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions. </x-charset>
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