RAMIE FIBRE-NTF PRESENTATION Slide .pptx

Ramie fibre

1. Welcome to our presentation RAMIE Raisul Islam Rahat (ID: 23010201063) Md. Sahabuddin Ahmed (ID: 23010201064) Rayhan Sardar Rafi (ID: 23010201065) Mohammad Sohan Uddin (ID: 23010201066) Laiba Afrin (ID: 23010201067) Prepared By Boehmeria nivea.

2. History of Ramie Ramie is one of the oldest textile fibres. It was used in mummy cloths in Egypt during the period 5000 - 3000 BC, and has been grown in China for many centuries. So Ramie, also known as " China grass " or “ Ramie Fibre “. In China, it was considered one of the five sacred crops alongside rice, wheat, barley, and millet . In the 19th century, with the rise of industrialization, ramie cultivation expanded further. Its fibres were used not only for clothing but also for industrial purposes such as ropes, nets, and papermaking .

3. Introduction To RAMIE Ramie is a bast fiber . Boehmeria nivea It was highly valued for its strong fibres, which were used to make textiles . Explore the eco-friendly and sustainable aspects of ramie cultivation, including its low environmental impact, minimal water and pesticide requirements, and biodegradability .

4. Processing and production of Ramie fibre

5. Harvesting Retting Pelling Decortication Spinning Degumming Bleaching and Dyeing

6. * Harvesting *: Ramie plants are typically harvested when they reach about 4-6 months old. The stalks are cut close to the ground to ensure maximum fiber length. * Retting *: This is a crucial step where harvested ramie stalks are soaked in water to dissolve the pectins that bind the fibers together. There are two main types of retting: field retting (exposure to dew, rain, and soil) and water retting (immersion in water). Water retting is more controlled and yields better-quality fibers. * Peeling *: After retting, the outer bark of the stalks is removed to reveal the inner fibers. * Decortication *: The peeled stalks are then mechanically processed to separate the fibers from the woody core. This can be done through crushing or scraping methods. * Degumming *: Ramie fibers have a natural gum content that needs to be removed to enhance their quality. This is typically done using chemical or enzymatic treatments to dissolve the gums. * Bleaching and Dyeing *: Once degummed, the fibers may undergo bleaching to achieve a whiter color. They can also be dyed at this stage to add color. * Spinning *: The processed ramie fibers are spun into yarns using spinning machines. These yarns can then be woven or knitted into fabrics.

7. Ramie fiber are long and glossy, naturally white, and have a silky look. similar to cotton, linen, and other plant fibers, ramie is a type of cellulosic material. has a unique physical form; it’s rigid and crystalline, yet remarkably porous. length often reach 45 cm long smooth and cylindrical with thick wall Chemical Composition Cellulose: 68.6 – 76.2% Lignin: 0.6 -0.7% Hemi-cellulose: 13.1 – 16.7% Pectin: 1.9% Wax: 0.3% STRUCTURE

8. PROPERTIES OF RAMIE . 1.Strength: Ramie is one of the strongest natural fibers.Its strength increases when wetting. 2.Durability: It is not as durable as other fibers and so is usually used as a blend with other fibers such as cotton or wool. 3.Lustre: It has a natural white color and a high lustre , giving it a silky appearance. 4.Elasticity: It has low elasticity. 5.Absorbency: Ramie is extremely absorbent.It absorbs water readily.Fabrics made from it will launder easily and dry quickly.They can be dyed readily. 6.Resiliency: It has low resiliency. 7.Resistance: It is resistant to bacteria,mildew,insect attack and can withstand high water temperature during laundering. 8. Ramie yarn tends to have a hairy feel due to the stiffness and coarseness of the fibre .

9. End Uses Of Ramie Fiber Textile Industry Versatility in Fashion Design Interior Design and Home Decor Papermaking Accessories & Bags

10. THANK YOU Any Question?