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What do the terms acid-free, photo safe & archival mean?

April 26, 2017acid-free archival mean photo safe terms

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What do the terms acid-free, photo safe & archival mean?

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These terms are used to describe the pH of the paper or product. All materials used should be acid free and have a pH factor of 7 or greater. If you have ever noticed a discoloration, yellowing and partial disintegration of photos, it is because acid-free products were not used.