They are not only using for making clothing, but also finds other diversified applications. It is almost 6 times stronger than cotton, 2 times that of flax and almost equals silk in its lustre. The processing of ramie fibers needs to start immediately after the plants are cut or else the pectin hardens and this makes it almost impossible to remove. 110, Ramie, a fiber-yielding plant, by Lyster H. ASCI, Investigating the Physical Properties of Treated and Untreated Jute Fibre-Polyester Composites, Study on Improvement in Handle Properties of Wool/Cotton Union Fabric by Enzyme Treatment and Subsequent Polysiloxane-based Combination Finishing, Eco-friendly Surface Modifications of Wool Fiber for its Improved Functionality: Ramie, Fiber plants, ramie, plant fibers, natural history, plant cultural practices, harvesting, processing technology, crop yield, plant characteristics, economic outlook and situation Publisher ... Ramie, a fiber-yielding plant, by Lyster H. The technical difficulties may be summarized as: Apart from any economic or technical reasons, the development of any new fibre needs market development work of some kind. The inherent draw backs of ramie fibre can be overcome by proper blending with natural/synthetic fibres. Ramie fiber is one of the premium vegetable fibers. Still in present scenario, there is much scope for research and development on this valuable fibre. A manufacturer can place an order for as much as, say, one million lb on the spot for cotton. In another work36, degummed ramie fibre of cut staple length 20 cm was processed in flax carding system and subsequently blended with jute fibre during drawing stage. Either the fibre is imperfectly cleaned so that it can only be put to use for limited local purposes, or the output is much too low, or there too much wastage of fibre during the process of decortications11. The decorticated fibres are cooked in vessels with 1-2% of caustic soda under pressure for 1 h. A slight mistake in the degumming process can spoil the quality of fibre, since the major component in ramie is cellulose and is sensitive to alkali. The peak at 1328 cm–1 correspond to aromatic skeletal vibrations, ring breathing with C–O stretching in lignin components28 and 1161 cm–1 corresponds to the C-O-C asymmetric stretching in cellulose I and cellulose II. The right time for harvesting is judged by the colour of the stems and the slowing down of their growth. The bast of ramie cannot be removed from the woody tissue in which it is embedded by a simple retting process such as is used for flax, hemp and jute. --- "Revision of, and supersedes Miscellaneous circular no. The gums of ramie are composed of araban and xylans which are insoluble in water but easily soluble in alkaline solutions. Ramie is similar to linen fiber. Ramie is also suitable for blending with both natural and synthetic fibres in different proportions. There is no international grading system is available for grading of ramie fibre and the grading is done as per the standards developed by the ramie producing countries. The ultimate fibers are exceptionally long and are claimed to be the longest of vegetable origin, with one report claiming the fibers range up to 580 mm, averaging about 125 mm. Abstract. The fibre is coarser and consists of hairs, projecting from the surface, its length varies considerably from 40-200 mm and the fibre diameter is around 25-30 μm. Apart from textile uses, ramie fibre can be utilised for the production of various diversified products. Decortication should be completed on the day of harvest and if there are some left over, they should be kept moist by sprinkling water till decortications is done on the following day. The peak at 1424 cm–1 corresponds to the bending vibration of CH2 for crystalline as well as amorphous cellulose27. The inherent draw backs of ramie fibre can be overcome by proper blending with natural/synthetic fibres. The total lifespan of the crop ranges from 6-20 years4. In Europe, Brazil and the Philippines, some modifications are made. In a study the degumming of ramie with sodium metasilicate, alone or in combination with other alkali solutions such as sodium carbonate, trisodium phosphate and sodium metasilicate phosphate, has been reported23. After three passages of successive drawing, the sliver was processed through jute roving machine and finally spun in to a yarn of 84 tex. The stems of ramie grow to a height of 1 - … The use of ramie is limited by its price and spinning properties. Ramie is still not used much by the textile industry largely because it is a high cost fibre due to its complex processing requirements. The existing jute grading system can also be adoptable in the case of ramie. China is the biggest producer of ramie fibre followed by Brazil and Philippines (Fig. It is also known as china grass2. Generally it grows up to a height of 1-25 m, the leaves are heart-shaped, 7-15 cm long and 6-12 cm broad and white on the underside with dense small hairs. In the current scenario, there is no specialized spinning system in India is available for ramie and is spun in jute system. Kenaf Ramie Fiber Processing Machinery Hemp Flax Decorticator And Raspador , Find Complete Details about Kenaf Ramie Fiber Processing Machinery Hemp Flax Decorticator And Raspador,Pineapple Fiber Decorticating Machine,Hemp,Kenaf Fiber from Shellers Supplier or Manufacturer-Zhengzhou Alpha Machinery Co., Ltd. The fibre yield and area of cultivation is shown in the Fig. Instead, it must first undergo a severe pounding or scraping to remove the outer bark, which is administered by hand or by one of the many types of decorticating machines. From the figure it is observed that after the chemical treatment, the fibres are found to be clean. Ramie is a unicellular cellulosic bast fibre. This long fibre is spun separately. Generally caustic soda is used for degumming process. The quality of decortication and fibre recovery also depend largely on the efficiency of the operator as well as condition of the plants. Acid hydrolysis of native ramie cellulose fibre leads to aqueous suspensions of elongated nano crystals with high aspect ratio. Ramie is one of the strongest fibers. However, other reports claim that the tensile strengths of cotton, flax, hemp and ramie are similar. Use of decorticators in the field saves the cost of transporting unwanted plant material to soil10. 4 and 5. In the current scenario, the textile industries are not showing much interest in the processing of ramie due to the difficulties associated with degumming and unsteady supply of fibre in the market. Removal of the gum enables the fibre to take a more crystalline form. The stems are green until they are mature, but then they begin to turn brown, starting at the bottom. PRELIMINARY PROCESSING OF RAMIE: FIBRE EXTRACTION. From 4-5% of ramie ribbons are cleaned from the stalks, so that from 400-1400 pounds per acre are yield annually in the same period, the average yield ranging around a thousand pounds. The extraction, mechanical processing, fibre properties and value addition of ramie fabric is made out of fibre! By Lyster H a commercial scale inhibitor for water and other chemicals to enter inside the fibre is in. Become too mature, lignification takes place gum from the inner bark of the ramie fibre to. Dry after harvest can not be in a year numerous patents have been in use for long... Interface bonding acid hydrolysis of native ramie cellulose fibre leads to aqueous suspensions of elongated nano with..., wet strength, extensibility are increases for cotton, because if not it. 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