Digital BW, The Print

Op 29-12-2010 9:22, Mantinieri schreef:

> My biggest enemy in gelatine coating since forever has been molding.
> In  the past, when I was using wet coating methods, it took about
> three days to air dry the print. Magnani Pescia is a real sponge and
> where I live the humidity is always in the 70%-80% range. The dry
> coating takes about half that time. Molding is almost guaranteed in
> this environment and it requires the addition of an anti-bacterial in
> the coating. Although there are many such products on the market, my
> difficulty is to find an archival product, possibly all natural, to
> be consistent with the archivalness other stuff in the mix. At the
> moment I am using thymol, a natural disinfectant. It has been quite
> effective for the last two years. However, its smell last for long
> time and I found out that it does not protect the print if that is
> stored in a very humid environment and in the dark. Other product I
> am still testing are: cloves oil, salicylic acid and methyl-paraben.
> Most of my techniques are covered in my web site (although it
> requires a substantial update, including two new portfolios I have
> been working on since almost two years).
>
> Mantinieri
>
> http://www.mantinieri.com

The paper base is free from any bacteria, fungi, when you receive it?
Few things in life are actually clean on that level. Providing an
optimal environment and if possibly some food will be enough to grow
colonies. The sizing of the paper could be enough base for food, the 
gelatine forming a Petri dish. Sure it isn't agar but close enough.

Check some ways to disinfect the paper before it is used.  UV from the 
sun, the microwave oven, formaldehyde/methanal gas exposure. Dangerous 
stuff though. I used to soup my B&W photo negs after development in a 
solution of it 40 years ago. Hardens gelatine and cell walls. Never seen 
any fungi, bacteria, destruct them and they were not archived in vaults

-- 
Met vriendelijke groeten,   Ernst

Try: http://tech.groups.yahoo.com/group/Wide_Inkjet_Printers/

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