Definitions for tanningˈtæn ɪŋ
This page provides all possible meanings and translations of the word tanning
process in which skin pigmentation darkens as a result of exposure to ultraviolet light
whipping, tanning, flogging, lashing, flagellation(noun)
beating with a whip or strap or rope as a form of punishment
making leather from rawhide
The acquisition of a tan, either by exposure to the sun, or artificially.
The process of making leather, which does not easily decompose, from the skins of animals, which do.
the art or process of converting skins into leather. See Tan, v. t., 1
Tanning is the process of treating skins of animals to produce leather, which is more durable and less susceptible to decomposition. Traditionally, tanning used tannin, an acidic chemical compound from which the tanning process draws its name. Coloring may occur during tanning. A tannery is the term for a place where the skins are processed. Tanning leather involves a process which permanently alters the protein structure of skin. Making "rawhide" does not require the use of tannin. Rawhide is made by removing the flesh and fat and then the hair by use of an aqueous solution, then scraping over a beam with a somewhat dull knife, then drying. The two aforementioned solutions for removing the hair also act to clean the fiber network of the skin and allow penetration and action of the tanning agent, so that all the steps in preparation of rawhide except drying are often preludes to the more complex process of tanning and production of leather. Tanning can be performed with either vegetable or mineral methods. Before tanning, the skins are unhaired, degreased, desalted and soaked in water over a period of 6 hours to 2 days. To prevent damage of the skin by bacterial growth during the soaking period, biocides, typically dithiocarbamates, are used. Fungicides such as TCMBT, 2- benzothiazole, are added later in the process to protect wet leathers from mould growth. After 1980 the use of pentachlorophenol and quicksilver biocides and their derivatives was forbidden.
U.S. National Library of Medicine
A process of preserving animal hides by chemical treatment (using vegetable tannins, metallic sulfates, and sulfurized phenol compounds, or syntans) to make them immune to bacterial attack, and subsequent treatments with fats and greases to make them pliable. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)
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