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Tanning, or hide tanning, is the process of treating skins and hides of animals to produce leather. A tannery is the place where the skins are processed. Historically, vegetable based tanning used tannin, an acidic chemical compound derived from the bark of certain trees, in the production of leather. An alternative method, developed in the ...
Representative chemical structure of a tannic acid, a type of tannin Tannin powder (mixture of compounds) A bottle of tannic acid solution in water. Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids.
Tanning may refer to: Tanning (leather), treating animal skins to produce leather; Sun tanning, using the sun to darken pale skin Indoor tanning, the use of artificial light in place of the sun; Sunless tanning, application of a stain or dye to the skin (active ingredient in tanning lotion products is dihydroxyacetone (DHA)).
Brenda Mae Tarpley (born December 11, 1944), [2] known professionally as Brenda Lee, is an American singer.Primarily performing rockabilly, pop, country and Christmas music, she achieved her first Billboard hit aged 12 in 1957 and was given the nickname "Little Miss Dynamite".
The words "tannin", "tanning", "tan," and "tawny" are derived from the Medieval Latin tannare, "to convert into leather." Bark mills are horse- or oxen-driven or water-powered edge mills [ 2 ] and were used in earlier times to shred the tanbark to derive tannins for the leather industry.
A tanning agent is used for: Leather tanning, the process of treating skins and hides of animals to produce leather; Sunless tanning, the effect of a suntan without ...
Sun tanning or tanning is the process whereby skin color is darkened or tanned. It is most often a result of exposure to ultraviolet (UV) radiation from sunlight or from artificial sources, such as a tanning lamp found in indoor tanning beds.
Indoor tanning lotions accelerate the tanning process, by promoting the production of melanin. [1] Increasing blood flow to the skin is a proposed mechanism, which may in turn stimulate production of melanin by melanocytes. [2] Historically, indoor tanning lotions have contained no sunscreen and offer no protection from the sun. However, many ...