find out 5 natural fibres used at your home and write 5 points about it.
Answers
Answer:
Abaca: It's a leaf fibre, composed of long slim cells that form part of the leaf's supporting structure. Lignin content is a high 15%. Abaca is prized for its great mechanical strength, buoyancy, resistance to saltwater damage, and long fibre length – up to 3 m. The best grades of abaca are fine, lustrous, light beige in colour and very strong. Once a favoured source of rope for ship's rigging, abaca shows promise as an energy-saving replacement for glass fibres in automobiles.
Coir: Among vegetable fibres, coir has one of the highest concentrations of lignin, making it stronger but less flexible than cotton and unsuitable for dyeing. The tensile strength of coir is low compared to abaca, but it has good resistance to microbial action and salt water damage. A coarse, short fibre extracted from the outer shell of coconuts, coir is found in ropes, mattresses, brushes, geotextiles and automobile seats.
Cotton: It's almost pure cellulose, with softness and breathability that have made it the world's most popular natural fibre. Fibre length varies from 10 to 65 mm, and diameter from 11 to 22 microns. It absorbs moisture readily, which makes cotton clothes comfortable in hot weather, while high tensile strength in soap solutions means they are easy to wash. Cotton is the world's most widely used natural fibre and still the undisputed "king" of the global textiles industry.
Flax: Like cotton, flax fibre is a cellulose polymer, but its structure is more crystalline, making it stronger, crisper and stiffer to handle, and more easily wrinkled. Flax fibres range in length up to 90 cm, and average 12 to 16 microns in diameter. They absorb and release water quickly, making linen comfortable to wear in hot weather. One of nature's strongest vegetable fibres, flax was also one of the first to be extracted, spun and woven into textiles.
Hemp: Long, strong and durable, hemp fibres are about 70% cellulose and contain low levels of lignin (around 8-10%). The fibre diameter ranges from 16 to 50 microns. Hemp fibre conducts heat, dyes well, resists mildew, blocks ultraviolet light and has natural anti-bacterial properties. Shorter, woody core fibres ("tow") contain higher levels of lignin. Easy to grow without agrochemicals, hemp is used increasingly in agrotextiles, car panels and fibreboard, and "cottonized" for clothing.
Jute: Dubbed the "golden fibre", jute is long, soft and shiny, with a length of 1 to 4 m and a diameter of from 17 to 20 microns. It is one of nature's strongest vegetable fibres and ranks second only to cotton in terms of production quantity. Jute has high insulating and anti-static properties, moderate moisture regain and low thermal conductivity. The strong threads made from jute fibre are used worldwide in sackcloth - and help sustain the livelihoods of millions of small farmers.
Answer:
Explanation:
Abaca: It's a leaf fibre, composed of long slim cells that form part of the leaf's supporting structure. Lignin content is a high 15%. Abaca is prized for its great mechanical strength, buoyancy, resistance to saltwater damage, and long fibre length – up to 3 m. The best grades of abaca are fine, lustrous, light beige in colour and very strong. Once a favoured source of rope for ship's rigging, abaca shows promise as an energy-saving replacement for glass fibres in automobiles.
Cotton: It's almost pure cellulose, with softness and breathability that have made it the world's most popular natural fibre. Fibre length varies from 10 to 65 mm, and diameter from 11 to 22 microns. It absorbs moisture readily, which makes cotton clothes comfortable in hot weather, while high tensile strength in soap solutions means they are easy to wash. Cotton is the world's most widely used natural fibre and still the undisputed "king" of the global textiles industry.
Jute: Dubbed the "golden fibre", jute is long, soft and shiny, with a length of 1 to 4 m and a diameter of from 17 to 20 microns. It is one of nature's strongest vegetable fibres and ranks second only to cotton in terms of production quantity. Jute has high insulating and anti-static properties, moderate moisture regain and low thermal conductivity. The strong threads made from jute fibre are used worldwide in sackcloth - and help sustain the livelihoods of millions of small farmers.
Mohair: Light and insulating, its tensile strength is significantly higher than that of merino wool. Like wool, mohair has surface scales, but they are thinner, making it smooth to the touch. Light reflected from the surface gives mohair a characteristic lustre. Thin surface scales make mohair smooth to touch, while light reflected from its surface gives it a characteristic lustre.
Wool: It has natural crimpiness and scale patterns that make it easy to spin. Fabrics made fromwool have greater bulk than other textiles, provide better insulation and are resilient, elastic and durable. Fibre diameter ranges from 16 microns in superfine merinowool (similar to cashmere) to more than 40 microns in coarse hairy wools. Limited supply and exceptional characteristics have made woolthe world's premier textile fibre.