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Piñatex is created by felting the long fibres from pineapple leaves together to create a non-woven substrate, with the addition of PLA (polylactic acid), a vegetable-based plastic material derived from cornstarch, resulting in a base material of 80% pineapple leaf fibre and 20% PLA. [6] The material is then coated with a petroleum-based resin.
Plant-based leather, also known as vegan leather or eco-leather, is a type of material made from plant-based sources as an alternative to traditional leather, which is typically made from animal hides. Plant-based leather can be made from a variety of sources, including pineapple leaves, mushrooms, corn, apple peels, and recycled plastic. [1]
The use of vegetable tanning is a process that takes longer than mineral tanning when converting rawhides into leather. Mineral tanned leather is used principally for shoes, car seats, and upholstery in homes (sofas, etc.). Vegetable tanned leather is used in leather crafting and in making small leather items, such as wallets, handbags and clothes.
Vegetable-tanned leather is tanned using tannins extracted from vegetable matter, such as tree bark prepared in bark mills. It is the oldest known method. It is the oldest known method. It is supple and light brown in color, with the exact shade depending on the mix of materials and the color of the skin.
Leather bindings exhibiting red rot. Red rot is a degradation process found in vegetable-tanned leather. [1] Red rot is caused by prolonged storage or exposure to high relative humidity, environmental pollution, and high temperature. In particular, red rot occurs at pH values of 4.2 to 4.5.
A clicking machine from 1922, used to die cut leather Schematic of the dinking process. Die cutting is the general process of using a die to shear webs of low-strength materials, such as rubber, fibre, foil, cloth, paper, corrugated fibreboard, chipboard, paperboard, plastics, pressure-sensitive adhesive tapes, foam, and sheet metal.
Seth Boyden (November 17, 1788 – March 31, 1870) was an American inventor. Boyden perfected the process for making patent leather, created malleable iron, invented a nail-making machine, and built his own steamboat. He is also credited with having invented a cut off switch for steam engines and a method for producing zinc from ore.
Oiling is a process whereby leather is hand coated (usually by brush or tampon) with either a raw (un-emulsified) oil or a combination of raw oil, blended with emulsified oils and a penetrating aid. Hand oils can include fragrant oils that help with the smell associated with the leather, e.g., Pine Oil .