Acid-free paper
Esquema
Jerarquía
<materials by form> > <materials by physical form> > <fiber and fiber products> > fiber products > paper (fiber product) > <paper by composition or origin>
Descripción
Paper that contains no free acids, thus providing greater permanence and durability; the term does not necessarily imply that the paper is alkaline-buffered. Acid-free paper is typically produced from cotton linters, rags, esparto grass, or chemical wood pulp which minimizes the potential for acid and/or lignin in the pulp. Acid-free paper may also contain a buffering material to maintain a pH in the neutral to slightly alkaline range. This helps scavenge any acidic materials formed by bleaching residues, sizes, degradation products, or air pollutants.
URI original del concepto
Otros términos
- zuurvrij papier [nl]
- papier exempt d'acide [fr]
- säurefreies Papier [de]
- carta non acida [it]
- papel exento de ácido [es]
- syrafritt papper [sv]
- permanent paper [en]
- säurefrei Papier [de]
- carta esente da acidi [it]
- papel sin ácido [es]