Digital BW, The Print

What I've been told by the guys there is that they are essentially taking
pigment and "grinding" it to substantially smaller particle sizes using the
latest nanotechnology - hence the brand Nanochromes.  If one can get a
higher density solution of much smaller (less light scattering) pigment
particles that can still be placed on paper via inkjet technology then it's
not surprising you can get better densities/chroma.  I think quite a lot of
insight to the issues at hand can be gleaned from Vogt's thesis beginning on
pg 12 under "Colorants for Ink Jet Inks".  While an overview only, I suspect
it's a useful introduction for non chemists like myself.  At the end of the
day, though, the proof is in the pudding and we'll have to see how they
perform.  I look forward to receiving some of their ink next week.


> From: dlruckus <dlruckus@...>
> Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Date: Sun, 01 Jan 2006 21:56:47 -0000
> To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> Subject: [Digital BW] Re: On Paul's MIS vs. K3 fade tests . . .
> 
> Agreed. I think the responses were a bit over the top as well.
> 
> As they don't have tests available that satisfy the critics, what they
>  might do to calm things would be to give info regarding the patents
> alluded to in one of the e'mails. It is public knowledge at some point
> anyway and could go a long way toward demonstrating the innovation
> spoken of. Fear of dyes of any variety seems to also be a part of the
> reactions. So if the inks aren't dyes then say directly what they are
> in ordinary speech as opposed to techno/marketing speak. They would be
> well served by a practical approach wherein someone says---"OK
> guys.Listen up.Here is what we've done.We whip up in big pot a batch
> of Teflon or whatever and before it's set up we stir in chemicals that
> react right within the mix to precipitate out the colorant(preferably
> recognised long life types).Then we blast the mix out of a shot tower
> under heat and pressure so it sets up(polymerises) into tiny beads of
> color. Because the color is protected by the whatever and encompassed
> by a solid it is less likely to fade than the normal techniques allow
> etc. and so on."-- Critics might still attack the process but it would
> be an arguable thing at that point. Infu6 doesn't mean much as yet.It
> will have to become ubiquitous first.
> 
> And a happy new year to you and all as well.
> 
> Duane