Search results
Results from the WOW.Com Content Network
wetting back- semi-processed leather is rehydrated. sammying - 45-55%(m/m) water is squeezed out the leather. splitting - the leather is split into one or more horizontal layers. 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.
Bonier hides of Caiman crocodiles are more difficult to dye and work with, making them a less popular option. For items such as bags, suits or trousers, large panels of skin are required. [2] With large areas of leather on display, damaged leather is obvious which is why cautions are taken to ensure high-grade skins come out of the crocodile farms.
Liming is a process used for parchment or leather processing, in which hides are soaked in an alkali solution. It is performed using a drum and paddle or a pit. Its objectives are: [1] Removal of interfibrillary proteins. Removal of keratin proteins. Collagen swelling due to the alkaline pH. Collagen fibre bundle splitting. Removal of natural ...
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.
A hide or skin is an animal skin treated for human use. The word "hide" is related to the German word Haut, which means skin.The industry defines hides as "skins" of large animals e.g. cow, buffalo; while skins refer to "skins" of smaller animals: goat, sheep, deer, pig, fish, alligator, snake, etc. Common commercial hides include leather from cattle and other livestock animals, buckskin ...
The skins of these animals became popular for use in leather production. In the Medieval era, tanning was considered a skilled trade and leather was second to wool as a textile fabric. During this period, a tanner would wash hides free of blood, manure, and other curing materials before it was rehydrated.
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.
About 85% of the leather at Horween Leather Company is made from cowhide. [2] The company's workers take raw hides, which arrive salted to prevent deterioration, trim them, and remove their hair with chemicals in an extremely large washing drum. The leather is then treated with salt and pickled for 24 hours, so that it reaches a desired pH level.