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Message 1
From: Lee Churchill
Date: Thu, 25 Mar 2010 13:52:40 GMT
Subject: [Baren 40893] plastics
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Hi All,
I tried to respond to Ellen on her blog but since I don't have a google account I couldn't. I figured this might be of interest to others as well though - not all plastics are bad!
Depending on the type of plastic (and your local environment), it's not a bad idea to put your prints in a plastic bin. Conservation scientists have tested lots of plastics and if your tub is polyethylene (PE) or polypropylene (PP) it's fine to use. The PE or PP marks are usually stamped near the recycling symbol, if there is one. If those aren't there it's like a PVC plastic (poly vinyl chloride)which is bad, the chloride ion can react with the atmosphere to form acid, plus it leaches other plasticizers which is why you get photocopies sticking to binder covers... the plasticizers from the aging cover 'melt' the plastic components in the toner.
Rubbermaid brand is usually the good stuff. Also Ziploc bags - though sometimes it feels like they've used a slip coating (oily) of some sort to help processing... when I use Ziplocs (for paper storage) I usually wash them out well or put a sacrificial tissue or clean newsprint around the paper.
Cheers,
Lee
(aka: the geeking out paper conservator)

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Message 2
From: "Maria Arango Diener"
Date: Thu, 25 Mar 2010 15:02:01 GMT
Subject: [Baren 40894] RE: plastics
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www.clearbags.com Then you can be sure there's
an acid-free storage barrier between the prints and the container. I don't
seal them but just place the whole run of prints in a bag and fold them
over. Keeps my prints insect, dust and cat-hair free. I then just place them
in a mail sorter.



Maria



[=o=][=o=][=o=][=o=]

www.1000woodcuts.com

ww.artfestivalguide.info

[=o=][=o=][=o=][=o=]

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Message 3
From: "Ellen Shipley"
Date: Thu, 25 Mar 2010 17:40:34 GMT
Subject: [Baren 40895] Re: plastics
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Thanx Lee! That's great to know. So if my plastic is the wrong kind, can I slip some paper between the plastic and my prints for protection?

Ellen

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Message 4
From: "Ellen Shipley"
Date: Thu, 25 Mar 2010 17:42:23 GMT
Subject: [Baren 40896] Re: plastics
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[Baren] Daily DigestThanx Maria,

So I should bag up the prints -- boy, that's a lot of bags, with 106 separate woodcuts (many of them multiples up to 30 or so). I'd rather find some way to protect the prints from the plastic tub, say with a liner of acid free paper.

Ellen

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