By this fibres come together to form a yarn. to soak in water or expose to moisture, as flax or hemp, to facilitate the removal of the fiber from the woody tissue by partial rotting. Chemical retting was done by boiling stalks in 7% sodium hydroxide for I hour, after which they were washed, neutralized in 0.2% acetic acid. This method is slowest, but it also has the least eco-impact of all the retting methods. ༺༒꧁Answer꧂༒༻ Retting is a process employing the action of micro-organisms and moisture on plants to dissolve or rot away much of the cellular tissues and pectins surrounding bast-fibre bundles, and so facilitating separation of the fibre from the stem.The most widely practised method ofretting, water retting, isperformed by submerging bundles of stalks in water. The quality of fibre is ruined if retting is not carried out properly. Retting is the process of beginning to separate the bast fibres from the hurds or other plant tissues. Retting is a process employing the action of micro-organisms and moisture on plants to dissolve or rot away much of the cellular tissues and pectins surrounding bast-fibre bundles, and so facilitating separation of the fibre from the stem. The process of Retting is done to obtain . “Retting”, requires large unskilled labour force. 0000010410 00000 n Statement 2: The process of retting softens the tissues and helps to separate the fibres. It also produces the finest flax fibre. The method chosen depends on the end use to which the fibre will be put. Retting, process employing the action of bacteria and moisture on plants to dissolve or rot away much of the cellular tissues and gummy substances surrounding bast-fibre bundles, thus facilitating separation of the fibre from the stem. chemical retting in comparison with the stream retting. View Solution play_arrow; question_answer39) Which of the following device is used for weaving? Retting alone greatly influences all these characters (Ahmed, 1963; 0000010431 00000 n If you intend on using your hemp biomass for fibre, retting can help make the process more effective. Silk. India, Pakistan, and China import significant quantities of jute fiber and products from Bangladesh, as do the United Kingdom, Japan, United States, France, Spain, Ivory Coast, Germany and Brazil. 0000004255 00000 n The traditional methods for separating the long bast fibres are by dew and water retting. A) Fabric done clear. The method chosen depends on the end use to which the fibre will be put. Check the below NCERT MCQ Questions for Class 6 Science Chapter 3 Fibre to Fabric with Answers Pdf free download. Retting Process When the jute stalk is well retted, the stalk is grabbed in bundles and hit with a long wooden hammer to make the fiber loose from the jute hurd or core. Retting is the process of extracting fibers from the long lasting life stem or bast of the bast fiber plants. The southern Ontario climate may dictate that field retting be done no earlier than the end of July in order to assure adequate dew conditions. For both methods of retting it is very important to end the retting at the right moment. Retting and Turning. Check the below NCERT MCQ Questions for Class 6 Science Chapter 3 Fibre to Fabric with Answers Pdf free download. Retting is a microbial process that breaks the chemical bonds that hold the stem together and allows separation of the bast fibers … Right: As the fibers peel off the branch, they have a beautiful lacy structure. On a large scale, spinning is done with the help of machines. Retting – Harvesting is done with a conventional combine harvester machine . Which fibre on burning gives the smell of burning paper? Retting: Process of decomposing the husk’s pulp through natural & chemical process to separate the coir fiber is called retting. • Total fibre production is more compared to conventional whole plant retting, where a substantial portion of fibre is lost during retting and washing. 0000000942 00000 n Traditionally this has been done in the same way as Flax and Hemp, i.e. Retting: Process of decomposing the husk’s pulp through natural & chemical process to separate the coir fiber is called retting. Field retting is the most practical method of hemp fiber production for farmers in the US, but little research has been done on the microbiota associated with hemp stalks during field retting, or on applied practices that improve the quality and consistency of the fiber without substantially increasing cost. The whole process of de husking, dipping husks bundle inside back water and removing of wet husk, extraction of fibre from husk are done manually. 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