Digital BW, The Print

I have pasted this to MS Word and then clicked and was taken to the synopsis page from there you can download the patent application document.

http://www.freshpatents.com/-dt20101118ptan20100292372.php

Bill Lewis

Bill,

Thanks for the link.

HP clearly found a characteristic in the latex that I thought should exist in something, but I never stumbled onto the latex.  To quote the HP patent application, "[I]t has been found unexpectedly that using a low conductivity latex dispersion increases particle stability of latex containing inkjet ink compositions."

I suspect that could be an important part of their "electro-steric" dispersion system.  

I see they also found the Tergitol line of surfactants.  

I must say, I've always been impressed with the HP R&D.  They have the $ and staff to do it right, not that Canon and Epson (I suspect via Fuji and others for chemistry) do not.

Paul
www.PaulRoark.com 





--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Bill Lewis <bill-lewis@...> wrote:

>
> I have pasted this to MS Word and then clicked and was taken to the synopsis page from there you can download the patent application document.
> 
> http://www.freshpatents.com/-dt20101118ptan20100292372.php
> 
> Bill Lewis
>

On 03/11/2012 06:58 PM, Paul wrote:
> Bill,
>
> Thanks for the link.
>
> HP clearly found a characteristic in the latex that I thought should
> exist in something, but I never stumbled onto the latex. To quote the HP
> patent application, "[I]t has been found unexpectedly that using a low
> conductivity latex dispersion increases particle stability of latex
> containing inkjet ink compositions."
>
> I suspect that could be an important part of their "electro-steric"
> dispersion system.
>
> I see they also found the Tergitol line of surfactants.
>
> I must say, I've always been impressed with the HP R&D. They have the $
> and staff to do it right, not that Canon and Epson (I suspect via Fuji
> and others for chemistry) do not.
>
> Paul


And I wonder whether this patent is more connected to the HP Latex 
printers than the aqueous printers we normally discuss here. Any polymer 
dispersion could in theory be called latex but there is such a low level 
of polymer binder in the inks we use.


-- 
Met vriendelijke groeten,   Ernst

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