write short note on rayon
Answers
Rayon is a manufactured fiber made from regenerated cellulose fiber. The many types and grades of rayon can imitate the feel and texture of natural fibers such as silk, wool, cotton, and linen. The types that resemble silk are often called artificial silk.
Rayon is made from purified cellulose, primarily from wood pulp, which is chemically converted into a soluble compound. It is then dissolved and forced through a spinneret to produce filaments which are chemically solidified, resulting in fibers of nearly pure cellulose.
Because rayon is manufactured from naturally occurring polymers, it is considered a semisynthetic fiber,whereas in precise usage the term synthetic fiber is sometimes reserved for fully synthetic fibers. Specific types of rayon include viscose, modal and lyocell, each of which differs in manufacturing process and properties of the finished product.
Workers can be seriously harmed by the carbon disulfide used to make most rayon.
It is a synthetic fibre prepared from wood pulp. The wood pulp is dissolved in an alkaline solution and then passed through tiny pores to convert them into fibres. Then, they are passed through sulphuric acid to make them hard. These fibres are spun into yarn and then woven into fabric. It is also called artificial silk because it resembles silk in appearance. It is cheaper than silk and can be dyed easily. Rayon is also known as regenerated fibre because it is reformed from original cellulose fibres. It absorbs sweat and thus, can be comfortably worn in summers.
(i) Rayon is used in the textile industry for making fabrics.
(ii) Rayon is mixed with wool to make beautiful and durable carpets.
(iii) Rayon is used to manufacture tyre cords.
(iv) Rayon is mixed with cotton to make bed sheets, dresses, aprons and caps.
(v) Rayon is used to make bandages and lint for surgical dressing of wounds.