Our acid free tissue white tissue paper comes in Ontario White. This buffering agent helps neutralize acid compounds which is useful for protecting archival items, such as: prints, artwork, photographs, books, wedding dresses and other valuable items. Exposure to air and other elements can still tarnish your items, but our tissue paper does not contribute to this process. Made with 100% recycled paper. 480 sheets per ream. Packed 5 reams per carton. See item # TIS2030ATN for Natural Kraft Anti-Tarnish paper.