Digital BW, The Print

Peter De Smidt wrote:
> With traditional pigments, the pigment is suspended in a binder, and 
> it's this binder which holds the pigment on the substrate.  Change over 
> time can happen with any element.  I.e. the substrate can deteriorate, 
> the binder can deteriorate, or the pigment can change.  With current 
> computerized ink printing, doesn't the coating on the paper act as the 
> binder?  Are there any issues with these coatings breaking down over time?
> 

There's still PVA in the inkjet binder how little that 
binder may be compared to non-inkjet inks.
The paper coating will contain PVA as well but the coating 
particles will bind the ink with their structure as well.
As many inkjet papers are waterfast today I think there will 
be a some hardening happen in the drying process so plain 
PVA it isn't.

Wilhelm doesn't test print's abrasion resistance or folding 
strength but test like that are quite common in conventional 
print testing. I must have seen some inkjet test results on 
that subject too but can not recall it.

-- 
Met vriendelijke groeten, Ernst


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