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Leather painting differs from leather dyeing in that paint remains only on the surface while dyes are absorbed into the leather. Due to this difference, leather painting techniques are generally not used on items that can or must bend nor on items that receive friction, such as belts and wallets because under these conditions, the paint may crack or wear off.
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.
The leather is sourced from the Sokoto Red breed, which is indigenous to Guinea and Sudan Savannah of Nigeria and Maradi Region in Republic of Niger. [ 5 ] [ 3 ] The finest grades of Morocco leather are goatskin , but by the late 19th century other skins often were substituted in practice, particularly sheepskin and split calfskin.
Bonded leather, also called reconstituted leather, is a material that uses leather scraps that are shredded and bonded together with polyurethane or latex onto a fiber mesh. The amount of leather fibers in the mix varies from 10% to 90%, affecting the properties of the product.
Tanned 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. An alternative method ...
In leather work, a chisel is a tool used to punch holes in a piece leather. The chisel has between one and seven (or possibly more) tines that are carefully placed along the line where the holes are desired, and then the top of the chisel is struck with a hammer until the tines penetrate the leather.
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The only type of leather suitable for carving is vegetable tanned, full grain leather. [citation needed] This is because the vegetable tanning process allows the leather to absorb water, which is used to soften the leather before the carving process, and the grain of the leather is necessary to allow the leather to hold the shape after the carving process is complete.
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