Abstract: Preventing the physical degradation of an archival article due to exposure to environmental impurities by applying to a substrate a coating composition containing (i) an alkaline buffer capable of neutralizing acidic components from the environment of the archival article; and (ii) an adsorbent capable of removing chemical components from the environment of the archival article, drying the composition on the substrate to form a coated material; and preventing the physical degradation of the archival object by positioning the coated material in proximity to an archival article.

Abstract: A material containing an alkaline buffer or deacidifying agent and an adsorbent, and a method for preserving an archival document or object using the material.

Abstract: A preservation article for the preservation of an archival article which involves an alkaline buffer and an adsorbent. A method of preserving an archival article which involves providing a preservation article in proximity to an archival article, wherein the preservation article includes an alkaline buffer and an adsorbent. The preservation article may be coated on or incorporated into a container, a packaging material, a support for an archival article or the archival article itself.

Abstract: A preservation article for the preservation of an archival article, wherein the preservation article includes a molecular sieve which is organophilic, hydrophobic or acid-resistant. A method of preserving an archival article which involves providing a preservation article in proximity to an archival article, wherein the preservation article includes a molecular sieve which is organophilic, hydrophobic or acid-resistant. The preservation article may be coated on or incorporated into a container, a packaging material, a support for an archival article or the archival article itself.

Abstract: Discussed is a method of preventing the physical degradation of an archival article due to exposure to environmental impurities by applying to a substrate a coating composition containing (i) an alkaline buffer capable of neutralizing acidic components from the environment of the archival article; and (ii) an adsorbent capable of removing chemical components from the environment of the archival article, drying the composition on the substrate to form a coated material; and preventing the physical degradation of the archival object by positioning the coated material in proximity to an archival article.

Abstract: A layered material containing a buffer and optionally containing an adsorbent. The material may also include a vapor barrier. The material is used for the preservation of archival documents and objects.A container configured to permit the long term storage of documents without slippage of the documents or resulting deformation may also be made from the material.

Abstract: A preservation article for the preservation of an archival article, wherein the preservation article includes a molecular sieve which is organophilic, hydrophobic or acid-resistant. A method of preserving an archival article which involves providing a preservative article in proximity to an archival article, wherein the preservation article includes a molecular sieve which is organophilic, hydrophobic or acid-resistant. The preservation article may be coated on or incorporated into a container, a packaging material, a support for an archival article or the archival article itself.

Abstract: Archival container construction materials including paper, paperboard (both solid fiber board and corrugated board) and, optionally, water-impermeable plastic, in both single- and multi-layer arrangement are disclosed. The container material provides an inner layer consisting of non-buffered, substantially pure alpha-cellulose and an alkaline size. Outer layers of the container material comprise alpha-cellulose, an alkaline buffer and an alkaline size. Optionally, the inner liner and the outer layer(s) are separated by a water-impermeable plastic layer, e.g., polyester film.

Abstract: A heat sealing machine for sealing polyester sheets is disclosed, wherein edges of two polyester sheets are heat sealed together by being exposed to a nickel-chrome heating ribbon. The machine includes movable clamping bars for clamping polyester sheets to a work surface in a position to be heat sealed, and also includes a movable shield for shielding the freshly sealed plastic sheet from a heating element, as well as for providing an alignment guide for the next plastic sheet to be heat sealed on the machine, which cooperates with the clamping bar.