Natural Fibre

Fibre also spelled fiber is a class of materials that are continuous filaments or are in discrete elongated pieces, similar to lengths of thread.

They are very important in the biology of both plants and animals, for holding tissues together.

Human uses for fibres are diverse. They can be spun into filaments, string, or rope, used as a component of composite materials, or matted into sheets to make products such as paper or felt. Fibres are often used in the manufacture of other materials. The strongest engineering materials are generally made as fibres, for example carbon fibre and Ultra-high-molecular-weight polyethylene.

Synthetic fibres can often be produced very cheaply and in large amounts compared to natural fibres, but for clothing natural fibres can give some benefits, such as comfort, over their synthetic counterparts.

Natural fibres

Natural fibres include those produced by plants, animals, and geological processes. They are biodegradable over time. They can be classified according to their origin:

Vegetable fibres are generally based on arrangements of cellulose, often with lignin: examples include cotton, hemp, jute, flax, ramie, and sisal. Plant fibres are employed in the manufacture of paper and textile cloth, and dietary fibre is an important component of human nutrition.

Wood fibre, distinguished from vegetable fibre, is from tree sources. Forms include ground wood, thermo mechanical pulp TMP and bleached or unbleached Kraft or sulphite pulps. Kraft and sulphite, also called sulphite, refer to the type of pulping process used to remove the lignin bonding the original wood structure, thus freeing the fibres for use in paper and engineered wood products such as fibreboard.

Animal fibres consist largely of particular proteins. Instances are spider silk, sinew, catgut, wool and hair such as cashmere, mohair and angora, fur such as sheepskin, rabbit, mink, fox, beaver, etc.

Mineral fibres include the asbestos group. Asbestos is the only naturally occurring long mineral fibre. Six minerals have been classified as "asbestos" including chrysotile of the serpentine class and those belonging to the amphibole class: amosite, crocidolite, tremolite, anthophyllite and actinolite. Short, fibre-like minerals include wollastonite and attapulgite.

Copyright © 2017 whorldropspindle