A word that refers to the permanence of a certain material suggesting it would preserve itself if archived properly. In reality, Archival translate into PH neutrality in paper, no Lignin, and that any pigment is stable in colour (e.g. colour fast).
The paper stock used for newspapers illustrates the consequences of less than ideal PH values. A newspaper begins to turn yellow and brittle right after having been printed on cheaper paper stock.
Archival pigments are stable chemically and do not fade much under the exposure of sunlight. Ground crystals are perfect pigments, whereas some of the artificially pigmented and low grade acrylics will not suffer the passage of time well.
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