Digital BW, The Print

We can send Paul a quantity of biocide that we use, but I would worry about it tinting the base as it is an amber color and thick similar to honey.  We have also not looked at how this would alter the overall performance of the base.

Storage and prep are very important when producing a base like this as everything must be clean to prevent biological contamination.  We are using a high grade 99.7% glycerol with distilled, deionized water mixed in our glass sealed mixing equipment to minimize risk.  It is also important to wash the bottles before transferring the ink as a little bit of dust can cause a lot of headaches.

-Justin

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Ernst Dinkla <e.dinkla@...> wrote:
>
> On 03/16/2012 04:20 AM, pdesmidt tds.net wrote:
> > I don't know why we get different results.  I used glycerol from the
> > Chemistry Store + distilled water.    The room the base is stored in is my
> > 2nd story office, which is heated and air-conditioned like the rest of the
> > house.  There are two windows.  I don't know if the mixed ink in the
> > cartridges was affected.  As soon as I saw the mold in the clear base
> > solution, I took all of the cartridges out of the printer and installed
> > cartridges with storage solution till I can afford to mess with it again,
> > which might be quite awhile.
> 
> There is always a risk. Even a CIS for an Epson 5000 filled with the 
> content of larger Epson dye carts gave trouble like that, white stuff in 
> all the lines.
> 
> A copper or silver wire (silver solder too I guess) in the bottles may help.
> 
> 
> -- 
> Met vriendelijke groeten,   Ernst
> 
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