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Acid-free paper is paper that, if infused in water, yields a neutral or basic pH (7 or slightly greater). It can be made from any cellulose fiber as long as the active acid pulp is eliminated during processing. It is also lignin- and sulfur-free. [1] Acid-free paper addresses the problem of preserving documents and preserving artwork for long ...
The U.S. Permanent Paper Law, or P.L. 101-423, is a joint resolution calling for the use of acid-free paper for federal records, books, and "publications of enduring value." [ 1 ] It was signed into law by President George H.W. Bush in October 1990.
Designed to preserve photographs and journaling in their original state, materials encouraged by most serious scrapbookers are of a higher quality than those of many typical photo albums commercially available. Scrappers insist on acid-free, lignin-free papers, stamp ink, and embossing powder.
Although acid-free paper has become more common, a large body of acidic paper still exists in books made after the 1850s; this is because of its cheaper and simpler production methods. Acidic paper, especially when exposed to light, air pollution, or high relative humidity, yellows and becomes brittle over time. [1]
Amidst our people here is comeThe madness of the dance.In every town there now are someWho fall upon a trance.It drives them ever night and day,They scarcely stop for breath,Till some have dropped ...
Acidic paper is paper which was manufactured using acidic substances. [1] Widely used since the mid-nineteenth century, its pages become yellow within years, extremely brittle over decades, and eventually unreadable in the library and archive collections intended to preserve them. [ 2 ]