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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]
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.
Veg-O-Matic is the name of one of the first food-processing appliances to gain widespread use in the United States. [1] [2] It was non-electric and invented by Samuel J. Popeil [3] and later sold by his son Ron Popeil [4] along with more than 20 other distributors across the country, and Ronco, making its debut in 1963 at the International Housewares Show in Chicago, Illinois.
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.
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 ...
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.
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.