Monday, May 26, 2014

Making Sense of Archival Supplies – Photographic Sleeves


         Now that we have various sized boxes and file folders, what is left to purchase?  Well, if you have photographs or slides and negatives, you will need some type of sleeve or envelope.  Your first decision is whether you want to be able to see the photograph without taking it out of the envelope.  If you do then you will want to purchase inert plastic sleeves.  If you don’t you will want to get sleeves made of acid free and lignin free card stock (same material as file folders).  My recommendation is plastic sleeves so that you can see the photograph without having to touch it possibly causing damage.

        Like everything else in the archival catalog world there are choices.  Gaylord has the most variety.  Hollinger-Metal Edge has only polyester sleeves (used to be known as Mylar D, which have been the cadillacs of sleeves). Hollinger-Metal Edge also offers the most choice in sizes.  Gaylord has the widest variety of plastic types.  In addition to polyester, they offer polypropylene or polyethylene.  Polyethylene is the cheapest, but it is not a clear plastic as the others are.  If I had all the money in the world I’d go with polyester sleeves. Unfortunately I don’t have all the money in the world so I settle for the polyethylene where you can get 100 per package.  Be careful when you order sleeves.  Check the number of sleeves per package.  For the more expensive you only get 10 sleeves to a package and they can cost over a dollar per sleeve depending on the size.

        The next choice is the sleeve thickness, which is described in terms of mils.  A mil determines the sturdiness and stiffness of the material.  Types vary from 2 mil to 4 mil, which is the thickest.  The thicker the material, the more expensive the product is.  The cheaper polyethylene sleeves only come in 2 mil, but that has been just fine given my limited budget. One other choice is the position and type of opening on the sleeve.  Some are top (short side open) and some are long side.  Some have only that one opening and others are open on three sides.  Some fold over and lock along the long side while the short ends remain open.  I’ve used all types, but again I mostly go with the cheapest.

            As I noted in a previous blog you need to be careful ordering sizes.  Sometimes you will need slightly larger sleeves.  I’ve found this to be especially true for 8x10 photos.  You don’t want to cause bowing or curling by storing in sleeves that are too tight. I usually order the 8 ¼ by 10 ¼ so I don’t have a problem. 

            There are sleeves for negatives of varying sizes and for slides also of varying sizes.  If you choose the no sleeve route I’d recommend storing the photographs flat with interweaving tissue or archival bond paper between them. (This approach works well for matted photographs.) We’ve talked about scrapbooks before.  There are archival three ring binders with sleeves.  Again the choice comes down to money first and then the amount of use the photographs will have.  Just remember for preservation all photographs need to be stored out of the sun, in boxes of some type, and protected from tearing, finger prints and other damage.  By the way it’s best to handle photographs using clean cotton gloves. 

Good luck.

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