What is acid- and lignin-free paper?
Acid- and lignin-free papers have a neutral pH to help preserve your photos and memories for years to come. If paper is not acid-free it can deteriorate your photos. Lignin-free paper prevents the build-up of acid in the paper fibers. Cheaper paper has a high lignin content causing the paper to discolor and become brittle (like in old newsprint). I use acid- and lignin-free papers.