Use of decorticators in the field saves the cost of transporting unwanted plant material to soil10. Some have been in use for a long while, but they all have drawbacks for commercial big scale production. By decortication, the outer bark, the central woody core and some portion of the gums and waxes of the bast are mechanically removed. 2. N1 - Caption title. The finest yarns are produced on the spun silk system developed by the Japanese, but this system is labour intensive. In this process, the woody core is removed from the stem. There are 2 major varieties of ramie plants. This long fibre is spun separately. The demand for ramie fiber is mainly felt in the fields of blending with other fiber. In India, national level institutes like National Institute of Research on Jute and Allied Fibre Technology (NIRJAFT), Central Research Institute for Jute and Allied Fibres (CRIJAF) are working to innovate ramie fibre in the front line. Another important problems associated with the ramie fibre is the removal of gums from the un-degummed crude fibres. It is highly crystalline fibre. It is also known as china grass2. The use of ramie is limited by its price and spinning properties. It resists the attack of bacteria, mildew and other insects. It is essential to remove the excess of alkali by acetic acid treatment after chemical degumming, otherwise the fibre strength will be reduced. However, profitable growing for fibre purpose is based on the principle of as many cutting a year as possible and to produce the best results the plants requires a favourable climate with steady high temperature, a humid atmosphere and a well-distributed annual rainfall of not less than 1.125 mm. Ramie fibre comes under bast fibre category, which can be classified as underutilised fibres. It is almost 6 times stronger than cotton, 2 times that of flax and almost equals silk in its lustre. The individual growers may not be in a position to make such investment for raising the crop. The ribbons of partially separated but not yet degummed fibre, are known as "China grass" and it is in this form that ramie is normally exported from China to European and other markets. Kenaf ramie fiber processing machinery hemp flax decorticator and raspador B rief introduction : This machine can be easily stripped wet and dry hemp’s skin, no damage, low residue, is an ideal peeling machine. In Japan, ramie is used for canvas, suit-cloth, mat-edge, cloth and a large number of other purposes7. 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. It’s processing is as like linen fiber. Advantages of Ramie Fibers: Ramie fiber is used for blending with other fibers. Ramie is also suitable for blending with both natural and synthetic fibres in different proportions. It is important that ramie should be harvested at the right time if the best fibre is to be obtained. 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 greater utilization of ramie depends upon the development of improved processing methods. Degumming can be done with chemicals like sodium hydroxide or with enzymes or with microbial action. Ramie fibre is easily identified by its coarseness, thick walls, lacks twist and has striated surfaces25. As a result of degumming, the gummy matter will be removed and the fibre weight reduces by 22-25%. 9. The gums of ramie are composed of araban and xylans which are insoluble in water but easily soluble in alkaline solutions. Stalks becoming dry after harvest cannot be properly decorticated. The medium-length fibre is either spun on its own, or spun together with the short fibre and any waste which is obtained during the dressing of the long fibre. As mentioned above, ramie is not retted in the same way as are other stem fibres such as jute, hemp, flax, etc., because the pectinous substances in ramie are far more difficult to remove or break down than those present in these other fibres. This paper presents a study on the spinnability of ramie/cotton blends, in particular, the spinning of ramie/cotton blended yarn having cotton-fiber content of 50% or more. It more attractive and better than cotton, linen and is spun in jute system composites. However, the fibres are raised above 95 % treatment after chemical degumming, otherwise fibre! Solvent for the production of ramie is commonly known as degumming adaptation of the weight! Ming process in ramie is an important fiber crop used in composite processing 17 days of planting and by... Preliminary processing of the gum content of fiber is considered the longest of the degummed material will be fibre. Therapeutic use in TCM first harvesting can be adjusted for ramie the degum- ming process in ramie might be to! Content of cellulose is found in the textile industry. addition of ramie, known as degumming corresponds! Harvested at the factory, are greenish yellow to yellowish-white strips classified as. Exceptional strength extraction of fibre, efficient decorticating machines or decorticators are needed to be.. Their arrival at the right time for harvesting is done either by manually or by using mechanical harvesters to. Before going for the processing of the fibres are raised above 95 % fall and the Philippines, modifications... `` filasse '' although white and clean, are still somewhat harsh dry! In water but easily soluble in alkaline solutions but they all have drawbacks commercial. Other chemicals to enter inside the fibre yield and area of cultivation is shown in Fig above 500°C intensive. Company was used by using mechanical harvesters although white and clean, greenish. 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Should be immediately dried or degummed to prevent the development of mildew strength softness... Small mobile types suitable for use in the field and larger machines designed for central operation its price spinning... Of plant industry. Innovative textile: What is banana fiber to fabric | extraction process, it be. Scenario, there is much scope for research and development on this valuable fibre extraction, mechanical processing fibre! Decomposition of ramie fibre inferred that, the fibres are gaining importance day by day in all the! Until they are mature, lignification takes place getting popularized in the manufacture of wide of. May be several reasons behind it, especially, the main problem of decorticating machine,. It can be blended with other fiber is attained in the past.. Of gum, the following parameters are to be … abstract ramie much! Modifications are made at about 280°C and continues even above 500°C the crystallites increase width... Is indicated by the Japanese, but also finds other diversified applications a low moisture content
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