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  2. Tanning (leather) - Wikipedia

    en.wikipedia.org/wiki/Tanning_(leather)

    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.

  3. Leather production processes - Wikipedia

    en.wikipedia.org/wiki/Leather_production_processes

    shaving - the leather is thinned using a machine which cuts leather fibres off. neutralisation - the pH of the leather is adjusted to a value between 4.5 and 6.5. retanning - additional tanning agents are added to impart properties. dyeing - the leather is coloured. fatliquoring - fats/oils and waxes are fixed to the leather fibres.

  4. Tannin - Wikipedia

    en.wikipedia.org/wiki/Tannin

    Tannins are an important ingredient in the process of tanning leather. Tanbark from oak, mimosa, chestnut and quebracho tree has traditionally been the primary source of tannery tannin, though inorganic tanning agents are also in use today and account for 90% of the world's leather production. [71]

  5. Leather - Wikipedia

    en.wikipedia.org/wiki/Leather

    Leather is a strong, flexible and durable material obtained from the tanning, or chemical treatment, of animal skins and hides to prevent decay. The most common leathers come from cattle , sheep , goats, equine animals, buffalo, pigs and hogs, ostriches, and aquatic animals such as seals and alligators.

  6. Tanning - Wikipedia

    en.wikipedia.org/wiki/Tanning

    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)).

  7. Bating (leather) - Wikipedia

    en.wikipedia.org/wiki/Bating_(leather)

    A tanner treating leather in Morocco. Bating is a technical term used in the tanning industry to denote leather that has been treated with hen or pigeon manure, similar to puering (see puer) where the leather has been treated with dog excrement, and which treatment, in both cases, was performed on the raw hide prior to tanning in order to render the skins, and the subsequent leather, soft and ...

  8. Tanbark - Wikipedia

    en.wikipedia.org/wiki/Tanbark

    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 "barker" was a person who stripped bark from trees to ...

  9. Ostrich leather - Wikipedia

    en.wikipedia.org/wiki/Ostrich_leather

    Ostrich leather is the result of tanning skins taken from African ostriches farmed for their feathers, skin and meat. The leather is distinctive for its pattern of vacant quill follicles, forming bumps ranged across a smooth field in varying densities. It requires an intricate, specialised, and expensive production process making its aesthetic ...

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