RAYON STAPLE FIBER

Specifications

RAYON STAPLE FIBER
Rayon fiber,viscose fibre
BRIGHT,sd dull1.2D(1.5D)*38mm
viscose fiber VSF
CHINA viscose staple fiber

Viscose Rayon is a manufactured regenerated cellulose fibre. As it is produced from naturally occurring polymers, it is neither a truly synthetic fibre nor a natural fibre; it is a semi-synthetic or artificial fibre. It usually has a high lustre quality giving it a bright sheen. Short cut viscose fibre is commonly used in applications requiring moisture absorbency like nappies.

Viscose fibre was discovered in 1891 by English scientists, Cross and Bevan. It was heralded as the new fibre to replace silk and is sometimes called artificial silk. This fibre has been produced widely all over the world, usually in countries which have a plentiful supply of trees, as it is this which provides the raw material for the fibre. The raw material is actually wood pulp, but also short cotton fibre, unusable for spinning, is also a raw material. The first commercial production in America was opened in 1910 by the American Viscose Company and the fibre became known as viscose rayon, with other producers following suit. The first use for the fibre was in car tyres as reinforcing. Massive volumes for the fibre were never achieved due to the invention of other cheaper fibres, such as Polyester and Nylon. Wood is pulped into sheets of cellulose and steeped in an alkali solution. After this process the sheets are shredded into cellulose crumbs and treated with carbon disulphide, which changes the chemical structure of the cellulose. This is then dissolved in a solution of sodium hydroxide, to make a thick solution (hence the name viscose). This solution is then machine forced through spinnerets, to produce viscose fibre in a wet spun process. The resulting fibre is then dried, crimped and cut to the required length.

recision or short cut fibres in a range of decitex sizes and cut lengths are used for reinforcement in a wide variety of industrial applications. These include the manufacture of adhesives, castings, composites, filters, lead acid battery plates, paints, paper, sealants and refractories. Fibres are available in a range of synthetic and natural materials depending on the end use.

 Viscose

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2. viscose rayon fibres  spec