Digital BW, The Print

On 15-04-14 20:03, Paul Roark wrote:
> In addition to the glycol that is usually said to be the source of the
> out-gassing, almost all inks also have glycerol in them.  It is even slower
> to evaporate, if it ever does.  It's virtually inert and usually just stays
> in the coating or matte paper (more room and works better).  If there is
> physical contact, I can imagine some transfer could take place.
>
> Paul
> www.PaulRoark.com

In frames it would not surprise me at all if glycerol is carried over by 
other ink media components that evaporate faster and then condensate on 
the cooler glass. The more when enough light is there to heat the print. 
Most likely the effects of static electricity etc add to that effect. It 
could be a nice project for a PhD to find all the details of that transfer.

-- 
Met vriendelijke groet, Ernst

http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
January 2014, 600+ inkjet media white spectral plots.