Economic Value
Feed, resin plastic desert
Ramie leaves are high in protein and nutritious feed. Magen contains medicinal ingredients of "ricinoleic acid," which has the effects of replenishing yin and tonifying the baby, treating upsets before and after birth, and treating acne. Hemp bone can be used as raw material for papermaking, or can be made into fiberboards that can be used for various purposes such as furniture and siding. Ma bone can also make wine and sugar. The hemp shell can be used for degumming and extracting fiber for textile, papermaking or ship repairing. The hemp shell scraped off from the fresh hemp skin can be used to extract furfural, which is a refined solution in the chemical industry and a resin plastic.
Extraction of ethanol
The aerial part of ramie can be used as a whole to extract ethanol.
Statistics show that in 1987, the total area of ​​ramie planting in the country reached 7.747 million mu, of which only 2.8 million mu were in Hunan Province, and the total area of ​​ramie planting nationwide was only over 200 million mu; some ramie processing enterprises also closed down one after another. Ramie development has encountered unprecedented difficulties. Through this promotion, the development of the ramie industry will be promoted, and the industry will be used to promote the management of soil erosion in the southern sloping arable land, increase farmers' income, and promote the building of a new socialist countryside.
Ramie, also known as "Chinese grass," is China's unique crop with textiles as its main purpose. China's ramie production accounts for more than 90% of the world's ramie production. We use ramie fiber spinning weaving only than ancient Egyptian linen weaving. Weaving cloth is about a thousand years late. Ricinus communis is a genus of perennial ramie, a perennial herbaceous plant, and its perennial root can reach 10-30 years.
Ramie leaves dried with 20.5~23.8% crude protein and more vitamins. It is a good livestock feed. Nettle root can be used medicinally, it can stop bleeding, loose silt, detoxification, and tocolysis; ramie rod skin can be processed and made into textile. With ramie fiber.
There are grooved cavities in the middle of the ramie fibers, and the walls are porous, and they are slender, tough, light in texture, fast in moisture absorption, and damp. Therefore, the breathability is about three times higher than that of cotton fibers. At the same time, the ramie fibers contain elements such as pyrene, pyrimidine and purine. Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, etc. have different degrees of inhibition effect, with anti-corrosion, anti-bacterial, anti-mildew and other functions, suitable for all types of textile health care products, ramie fiber has a good wear and wear performance, is An excellent textile raw material. Ramie fabric has the advantages of rough, crisp, elegant, light, cool, breathable, antibacterial, etc. Its superiority and unique style are unmatched by other fibers. It can also be blended and interwoven with cotton, silk, wool or chemical fiber to form a unique fabric product.
Ramie fiber modification
Ramie fiber is a primary bast fiber and has a higher Young's modulus, a higher degree of polymerization, and a stronger single fiber than cotton fibers. The ramie plant is comparable to a cotton fabric of the same specification in terms of breathability, dispersibility, and stiffness properties. There are obvious advantages, but due to the structural characteristics of ramie fibers, it is easy to produce prickle sensation when it is in contact with the skin during the wearing process, which is also the main purpose of the ramie product progressive modification.
There are three main methods to eliminate itching: mechanical methods, chemical methods, and biochemical methods.
Mechanical methods include: mechanical rubbing, mechanical extrusion, and machine wrapping, as well as the current development of plasma etching.
Biochemical methods are mainly achieved by cellulases.
This property of ramie fiber is mainly carried out by chemical methods. After degumming of ramie, chemical etherification reaction of esters with hydroxyl groups in cellulose macromolecules is carried out using chemical reagents, thereby changing the lattice structure of cellulose and making the fiber's rigidity, etc. Changes occur, reducing itchiness.
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