Vegetable fibers ramie

The microfibrils iu vegetable fibers are spiral and parallel to one another iu the cell wall. The spiral angles iu flax, hemp, ramie, and other bast fibers are lower than cotton, which accounts for the low extensibiUty of bast fibers. 

Ramie is another important vegetable fiber. It has a shiny, white color. Its strain to failure is 3-4%, and compared to other vegetable fibers, it has an exception-... 

Specific Fibers. Literature on specific fibers is subdivided into the following classes cotton, wool and hair, silk, and the long vegetable fibers, with jute, flax and linen, hemp, ramie, and kenaf as constituents of the last class. 

Fiber, ramie A strong natural fiber of vegetable origin, sometimes used as a filler or reinforcing material providing high shock resistance and strength. 

Fiber, vegetable Different vegetable fibers are used in RPs, etc. They include (1) seed-hair-cotton, kapok, milkweed floss (2) bast-flax, hemp, jute, ramie and (3) leaf-abaca, sisal. 

Other Long Vegetable Fibers Abaca, Banana, Sisal, FHenequen, Flax, Ramie, FHemp, Sunn, and Coir... 

It has been mentioned earlier that vegetable fibers other than cotton and kapok are multicellular. The mechanical properties of these fibers, therefore, reflect an interaction between their ultimates and their middle lamella substances ramie is an exception because the size of its ultimates is large enough to act as a fiber. 

Natural fibers may be of animal, vegetable, or mineral origin. All animal fibers presently in use are made up of proteins, as, for example, wool and silk, and all vegetable fibers in use consist of celluloses such as cotton, flax, hemp, ramie, and sisal. A mineral fiber is, for example, asbestos. 

All presently used vegetable fibers are cellulosic (cotton, flax, hemp, ramie, jute, sisal), and all presently used animal fibers are proteins (wool, natural silk, camel hair). Asbestos is a mineral fiber. 

Only the vegetable fibers section with kapok, ramie, flax, hemp, jute, sisal, and coir is anticipated to have stagnated at 5.9 million tonnes. 

Fig. 4.3 Worldwide vegetable fiber production (Saurer Repwt 2006). Kapok, ramie, flax, hemp, sisal, coir...

Ramie ra-me, ra- [Malay rami] (1832) n. A natural vegetable fiber obtained from the stems of the hemp Boehmeria nivea, used as a reinforcement. 

Vegetable fiber n. A textile fiber of vegetable origin, such as cotton, kapok, jute, ramie, and flax. Wallenberger ET, Weston NE (eds) (2003) Natural fibers, plastics and composites. Springer-Verlag, New York. Kadolph SJJ, Langford AL (2001) Textiles. Pearson Education, New York. 

Natural fiber-reinforced PLA composites are attractive because both the reinforcement (natural fiber) and matrix (PLA) are obtained from renewable resources. Natural fibers are considered as environment friendly alternatives to conventional reinforcing fibers such as glass, carbon, aramid, and so on. Natural fibers can be subdivided into three categories plant (cotton, jute, flax, hemp, etc.), animal (wool, silk, etc.), and mineral fibers (asbestos, inorganic whiskers, etc.). Generally, plant fibers are more popularly used as natural fiber reinforcements. Of these fibers, the most used are flax, jute, sisal, ramie, hemp, kenaf, and cotton. Plant fibers can generally be classified as nonwood (vegetable fibers) and wood fibers [20]. 

The first vegetable fiber is from bast including jute, ramie, sisal, apocynum, hemp, linen, and flax. The quality of raw bast fibers depends on the quality of the sod, the climate, and the method used to separate the bast from the cortex after it has been harvested. Chemically, jute fiber is a highly lignified fiber, which consists of cellulose (60%), hemiceUuloses (26%), lignin (11%), proteins (1%), waxes and fats (1%), and ash (1%). 

Vegetable fibers Hemp, coconut (coir fiber), jute, ramie, sisal... 

Vegetable fibers cotton, jute, flax, sisal, sugarcane bagasse, coconut, ramie... 

Natural cellulose fibers also are called plant fibers or vegetable fibers. Natural cellulose fibers include cotton together with flax, jute, jute, ramie and other fibers produced by plants. Natural cellulose fibers can be classified to seed, bast, leaf, and fruit fibers. Figure 4.1 shows the classification of natnral cellnlose fibers. 

Fiber or Fibre is any tough substance composed of threadlike tissue, especially when capable of being spun or woven. Fibers may be divided into animal (wool or silk), vegetable (cotton, hemp, flax, ramie, esparto, jute, sisal etc), mineral (asbestos, glass fiber) and artificial (Rayon, Nylon, Orion, Vinyon, Saran etc)... 

Fiber, other They include natural/vegetable, sisal, asbestos, ramie, flax, soya bean/cellulose, and hemp types. 

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