Fibers obtained from banana leaves had about 26 % cellulose, 17 % hemicellulose, and 25 % lignin, but the fiber properties are not reported [07Bil]. g) Polyester is a natural fibre. The fibre plants are: 1. In India, jute is mainly grown in West Bengal, Bihar and Assam. Silk cotton is used commonly used as stuffing in pillows, sleeping bags and life jackets. Question 3. Q 5. Jute" is the name of the plant or fiber used to make burlap, hessian or gunny cloth. Among microscopic tests and chemical tests, microscopic tests are mainly used for natural fibre. f) Silk fibre is obtained from the stem of a plant g) Polyester is a natural fibre. From which parts of the plant, cotton and jute are obtained SOLUTION: Cotton is obtained from the seed bolls called cotton bolls of the plant and jute is obtained from stem of the jute plant. Silk fibres are obtained from the silkworms which spin the fibres to form a cocoon in the pupa stage. Spinning is a process of making fibre. DIRECTIONS: Read the following three statements carefully and choose the correct option. Cotton. Weaving of yarn makes a piece of fabric. (a) True (b) False (c) False (d) True (e) True (f) False (g) False. The jute plant is normally harvested when it is at flowering stage. Natural sources: Cotton, jute, silk, wool etc. Jute is one of the most affordable natural fibers, The jute fiber comes from the stem and ribbon (outer skin) of the jute plant. A) Eucalyptus leaves done clear. b) Animals fibres are silk and wool. The jute plant is normally harvested when it is at flowering stage. Silk fibres are obtained from silkworms. Though flax has lost some of its value as a commercial fiber crop, flaxseed has grown in popularity as a health food. List of Plant Fibers. Lastly, surface fibers are harvested through ginning which is where a machine removes the fibers from other plant material. 3. The stems rot and fibres are separated by hand. When the fruit ripens, it bursts open, releasing the fibres. When the fruit ripens, it bursts open, releasing the fibres. Silk cotton Silk cotton is obtained from kapok tree. Fill in the blanks: (a) Plant fibres are obtained from_____ and_____ . g) False, polyester is not a natural fibre. Jute fibre is obtained from the stem of the jute plant. Question 4 From which parts of the plant cotton and jute are obtained? Answer: Coir is the natural fibre obtained from coconut husk. The process of removing seed from cotton is called ginning. The best fiber of banana extract is from the bark of banana tree that is easily procured. The fruits of this tree contain fibres. SOLUTION: Ropes and doormats are made from coconut fibre. Silk moth feeds on which plant leaves? Hemp: Hemp fibres are obtained from the stem of the hemp plant. are obtained from natural sources plants or materials. Answer. 2. Answer: Cotton is obtained from the fruits of the cotton plant, called cotton balls. The process used for making plant fibre from the stem of a plant by keeping them in a stgnant water for few days is called retting. Yarn is made from fibre. C) done clear. (Stem-skin fibers) Esparto, a fiber from a grass; Jute, widely used, it is the cheapest fiber after cotton Jute fibre is obtained from the stem of the jute plant (Fig 3.8). Q7: Name two items that are made from Jute fibre. 3. Plants including cotton, jute, flax and hemp are used to obtain plant fibres. Wool and silk fibres are obtained from animals. (g) Polyester is a natural fibre. SILK FIBRE silk is a natural fiber that can be woven into textiles. (A) stem, seed (B) wool, silk Q 4. Name two items that are made from coconut fibre. Hemp Another important plant fibre is hemp. It is cultivated during the rainy season. b) Spinning is a process of making fibres. f) False, silk fibre is not obtained from the stem of a plant. Man made sources:Polyester, nylon, rayon etc. (e) Silk fibre is obtained from the stem of a plant. (a) cotton plants, jute plants (b) wool, silk… Answer: a) True b) False c) False d) True e) True f) False g) False. Silk fibre is obtained at which of the following stage of its life cycle? A) done clear. (e) Silk fibre is obtained from the stem of a plant. Ans. Answer: a) Yarn is made from fibres. The following points highlight the three important fibre yielding plants of India. B) done clear. Silk: It's filament is a continuous thread of great tensile strength measuring from 500 to 1 500 metres in length, with a diameter of 10-13 microns. Fiber to Fabric 1. Silk fiber is obtained from the stem of a plant. Cotton is a soft fibre that is obtained from cotton plants and grows as a boll. It is also obtained from the hair of rabbits, yak and camels. It is produced from flowering plants in the genus Corchorus, which is in the mallow family Malvaceae.The primary source of the fiber is Corchorus olitorius, but it is considered inferior to Corchorus capsularis. " Jute fibre is obtained from the stem of the jute plant. (iii) Silk fibre is obtained from adult of silk moth. (True) b) Spinning is a process of making fibres. Question 5 Name two items that are made from coconut fibre. Flax, plant of the family Linaceae, cultivated both for its fiber, from which linen is made, and for its nutritious seeds, from which linseed oil is obtained. are manmade material used for making clothes. Silk cotton fibre: Silk cotton is a silky, fluffy fibre obtained from the fruit of the silk-cotton tree, also called kapok. Bast fibre, soft, woody fibre obtained from stems of dicotyledonous plants (flowering plants with net-veined leaves) and used for textiles and cordage.Such fibres, usually characterized by fineness and flexibility, are also known as “soft” fibres, distinguishing them from the coarser, less flexible fibres of the leaf, or “hard,” fibre… Except for silk, all natural cellulose- and protein-based fibers are obtained in short lengths and are called staple fibers. Bast fibers. The fibres are obtained from the stem of the banana plant after the fruit is ... what was earlier considered to be agricultural waste is now used to produce good quality silk-like fibre yarn. Ramie, fiber plants grow along Chang Jiang river, edible with anti bacteria function. Some examples of the plant fibres are given below: 1. D) Fill in the blanks : a) Plant fibres are obtained from ___ and ___ b) Animal fibres are ___ and ___ Answers: a) Jute and cotton b) Silk … Concept insight: Silk fibre is obtained from the cocoon of a silk moth. The fibre is long, strong and durable but lacks flexibility and elasticity, and is used for the manufacture of ropes, twine, carpets, bags, nets, etc. Jute is the outer covering of coconut. (ii) Fruit of cotton plant is about the size of lemon. Wool is obtained from the fleece of sheep or goat. Answer: 1 True, 2 False, 3 False, 4 True, 5 True, 6 False, 7 False Silk fibre is drawn from the cocoon of silkworm. e) Weaving of yarn makes a piece of fabric. (i) The process of making yam from fibre is called weaving. Fiber crops. Hemp is the bast fibre obtained from stems of Cannabis sativa L plants. The fibers are first extracted by retting. Cotton and jute are examples of fibres obtained from plants. This fibre is obtained from the silk cotton tree, also called kapok. d) The process of removing seed from cotton is called ginning. (f) Silk fibre is obtained from the stem of a plant. The fibres are obtained from the leaves and are bast fibres. The stems of the harvested plants are immersed in water for a few days. Hemp fibre: Hemp fibre is obtained from the stem of In woven silk, the fibre's triangular structure acts as a prism that refracts light, giving silk cloth its highly prized "natural shimmer". It is obtained from the cocoon of the silkworm larva, in the process known as sericulture properties it’s a fine continuous strand unwound from the cocoon of a moth caterpillar known as the silkworm. C) Mulberry leaves done clear. In India, jute is mainly grown in West Bengal, Bihar and Assam. Fibers: All cloth materials are made up of long, narrow, thin structures called fibers.Fibers are obtained from natural as well as manmade sources. In addition to the stems, fibers have also been obtained from the leaves of the banana plant. Ans. Plants are dioecious, and yield three products namely bast fibre from its stem, oil from its seeds, and narcotics (Bhaang, Charas and Ganja) from its leaves and flowers. The fruits of the kapok tree contain fibres that are light and fluffy (like cotton). Silk is a continuous filament fiber. Silk is a natural protein fiber, some forms of which can be woven into textiles.The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. (g) Polyester is a natural fibre. These fibres are light and fluffy. Q.3. Hemp: Hemp fibres are obtained from the stem of the hemp plant. Typically, banana plants produce about 30 leaves as long as 2 m and 30–60 cm wide [07Bil]. (False) c) Jute is the outer covering of coconut. Hemp fiber is obtained from the stem of the plant. Jute is a long, soft, shiny bast fiber that can be spun into coarse, strong threads. The Process of making the fibre (Kijōka-bashōfu or Banana cloth) Banana fiber harvested from the pseudostems and leaves of the plant have been used for textiles in Asia since at least the 13th century. it is the longest and thinnest natural It grows easily to a height of 4 m without agrochemicals and captures large quantities of carbon. Many plant fibres are produced as field crops. A class name for various genera of fibers (including filaments) of: (1) animal (i.e.,silk fiber, wool fiber) (2) mineral (i.e., asbestos fiber) or The most important components of fibres are cellulose (77%), pectin (1.4%) and waxes (1.4%). The stems of the harvested plants are immersed in water for a few days. Jute fibre is obtained from the stem of the jute plant. It is commonly used for stuffing cushions and mattresses, and for other purposes that require a soft, voluminous filling. Polyester is a natural fiber. f) Silk fibre is obtained from the stem of a plant. It is cultivated during the rainy season. This fibre is obtained from the silk cotton tree, also called kapok. (b) Animal fibres are_____ and_____ . Synthetic fibres are very similar in appearance and the increase in the number of varieties makes it a little tough to distinguish the fibres even under a microscope. With 70% of cellulose, hemp is an excellent heat conductor, it absorbs dyes adequately, it blocks UV rays, it is very resistant to … c) We get jute fibres from the outer layer of a stem of the jute plant. g) Polyester is a natural fibre. The fruits of the kapok tree contain fibres that are light and fluffy (like cotton). Flax is also a plant that gives natural fibres. This fiber is bio-degradable and hence eco-friendly. Answer: (i) Jute Sack bags (ii) Ropes Q8: Name two items that are made from coconut fibre. B) Grape leaves done clear. One of the most relevant features of this plant is that it captures large quantities of carbon. It is a synthetic fibre- artificially made Items made from coir (coconut fibre) are: (i) Coir Mattresses (ii) Mats (iii) Baskets The test identifies the natural fibres more easily as compared to manmade ones. Answer: Ropes and jute bags. The stems rot and fibres are It has good absorbency, low conductivity and dyes easily. f) Silk fibre is obtained from the stem of the plant. Hemp fibre is obtained from the stems of hemp plant. (False) d) The process of removing seed from cotton is called ginning. Explanation: a)& b) Process of making yarn from fibres is called spinning. c) Jute is the outer covering of coconut. Answers: a) – True, b) – False, c) – False, d) – True e) – True, f) – False, g) – False. : silk fibre is obtained from the stem of the kapok tree contain fibres that are made coconut... At which of the plant fibres m without agrochemicals and captures large quantities of carbon are by! Cellulose ( 77 % ) and waxes ( 1.4 % ) 07Bil ] tests and chemical tests microscopic! 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