Make a collection of different types of fibre from your surroundings and where they used ?
Answers
Answer:
Fibres that are obtained from plants or animals are called natural fibres. Examples are cotton, jute, wool, and silk. Fibres that are made by man from chemical substances are called synthetic fibres. Examples are nylon, rayon, polyester, and acrylic.
Rayon, was first produced in the 1920s and is one of the important early natural based synthetics.
A fiber is defined as a unit of matter with a minimum length of 100 times its diameter, flexible, and capable of being woven. Within the militaries collecting field, the term textile generally means clothing such as jackets, shirts and headwear, but can also include some footwear, web equipment, insignia, maps, flags, and banners.
Nylon, Rayon, Acrylic and Polyester are artificial fibers. ... Rayon is used in fabrics, home furnishing and industrial applications. The fabric is used to create clothing such as blouses, jackets, sportswear and dresses
Animal Source Fibers
Wool: Sheep are the primary source of wool in military textiles. Wool consists mainly of a protein called keratin, which is made up of amino acids. Keratin contains 3 – 4 % sulfur which is an insect attractant. Wool fibers absorb more moisture and accept dyes better than vegetable fibers. Wool is not a strong fiber and weakens considerably when wet.
Silk: Silk is an animal (insect) fiber that is derived from the cocoon filament of the silkworm (Bombyx mori). Because it is basically protein, silk is easily affected by alkalis and various inorganic acids. Like wool, it easily absorbs moisture and will take dyes readily. These dyes, however, are not as light-fast as those on wool. Silk is as strong as a steel wire of the same diameter but is very light sensitive. Therefore, it will break down faster than wool when exposed to ultra-violet rays. The most commonly encountered military artifacts composed of silk are scarves, medal ribbons and escape maps.
Vegetable Source Fibers:
Cotton: Cotton is a vegetable fiber derived from lint on the cotton seed. It can survive in moderate alkaline conditions but is adversely affected by acids. Cotton does not transmit moisture like linen and is very absorbent in its processed state. It is this characteristic which allows cotton to take dyes well. Cotton has a very characteristic clockwise twist; for this reason, it is commonly spun in a ‘Z’ twist.
Linen: Linen is a spun and woven vegetable-based fiber derived from flax stalks and branches. Linen fibers lie close together and are durable. They withstand moderate alkaline conditions because of their cellulose content, but are readily affected by acids. Moisture easily passes through the fibers of linen, causing the material to undergo dimensional and weight changes as well as changes in the overall strength. Linen does not take dye well and is usually left in a bleached or unbleached white state.
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