[filmscanners] Re: inkjet-printable CD-R's and DVD-R's

["Arthur Entlich" <artistic-1@shaw.ca>]

I tend to agree with you.  But the truth is we really don't know.  The
inks may be relatively "inert" but they have a non-neutral pH, and the
Epson pigmented inks are encapsulated in a polymer, which may or may not
alter the coating on the CD or outgas over time.

Again, personally, I'm not going to worry about it, as I suspect in most
cases the difficulty is more likely the lack of systems to read the
disks after 20 years, rather than if the data is readable on the disk.

Art

Karasev, Alexander wrote:

>>2) What does the ink from inkjets do to the CD over time?
>>
>>Art
>>
>
> Well, there have been significant strides made in the past 2 years by all
> inkjet manufacturers towards greater ink stability. Today's consumer inkjet
> inks are water soluble and inert. Epson's C80, C82, and the high end 13"
> wide photo printer even use pigment rather than dye inks - those are even
> more inert (with respect to being affected and affecting the environment
> they're in).
>
> I have not seen the longevity data on inkjet printable vs. conventional
> label marked vs. tick-on labeled media, but intuitively feel that a quality
> factory applied inkjet coating probably has a lesser danger of peeling /
> throwing the CD off-balance or affecting the layer underneath, as compared
> to the stick-on label, and also, quality inkject inks, particularly the
> pigment variety rather than dye, must be at least as good as the better of
> the CD markers.
>
> Alex
>


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