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Alteration of materials by light
- Photodegradation is the alteration of materials by light. Commonly, the term is used loosely to refer to the combined action of sunlight and air, which cause oxidation and hydrolysis. Often photodegradation is intentionally avoided, since it destroys paintings and other artifacts.
en.wikipedia.org/wiki/Photodegradation
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Apr 1, 2024 · Photodegradation can occur in various types of artwork, including paintings, photographs, textiles, and sculptures. It is a common issue in art conservation, as exposure to light is often unavoidable in museum and gallery settings. II. Causes of Photodegradation. The primary cause of photodegradation in artwork is exposure to ultraviolet (UV ...
Photodegradation is the alteration of materials by light. Commonly, the term is used loosely to refer to the combined action of sunlight and air, which cause oxidation and hydrolysis. Often photodegradation is intentionally avoided, since it destroys paintings and other artifacts.
In art conservation, understanding photodegradation helps in selecting appropriate display and storage conditions for artworks to prevent irreversible damage. Certain protective coatings can be applied to artworks to mitigate the effects of photodegradation by blocking harmful UV radiation.
Jun 10, 2015 · Host Hank Green discusses photodegradation, in which energy from the photons in sunlight break down the molecules in pigments and dyes, changing the way they reflect light and causing the colors...
Oct 17, 2018 · This chapter describes some recent studies and applications of photochemistry in the physical–chemical characterization of two acrylic paint materials based on phthalocyanines and the study of the photodegradation (photobleaching) processes which could occur, caused by exposure to artificial irradiation, similar as in the museum.
- Rodica-Mariana Ion, Alexandrina Nuta, Ana-Alexandra Sorescu, Lorena Iancu
- 2018
Photodegradation refers to the change in a material by light. The term is commonly used to refer to the combined effects of sunlight and air that cause oxidation and hydrolysis. Light degradation is often deliberately avoided because it can damage paintings and other items [23].
Nov 19, 2019 · The technical term for color fading is photodegradation. There are light absorbing color bodies called chromophores that are present in dyes. The colors we see are based upon these chemical bonds and the amount of light that is absorbed in a particular wavelength.
