viscose staple fiber, buy RAYON STAPLE FIBER on China Suppliers Mobile

Product Details

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

There are several fibres made from the naturally occurring polymer cellulose, which is present in all plants. Mostly cellulose from wood is used to produce the fibres but sometimes cellulose from short cotton fibres, called linters, is the source. By far the most common cellulosic fibre is viscose fibre.

Viscose is defined by BISFA as being "a cellulose fibre obtained by the viscose process". It is known as rayon fibre in the USA. Although several cellulosic fibres had been made experimentally during the 19th century, it was not until 1905 that what has become the most popular cellulosic fibre, viscose, was produced.

Production

Viscose fibres are made from cellulose from wood pulp. The cellulose is ground up and reacted with caustic soda. After an ageing waiting period, the ripening process during which depolymerisation occurs, carbon disulphide is added. This forms a yellow crumb known as cellulose xanthate, which is easily dissolved in more caustic soda to give a viscous yellow solution. This solution is pumped through a spinneret, which may contain thousands of holes, into a dilute sulphuric acid bath where the cellulose is regenerated as fine filaments as the xanthate decomposes.

Properties and End-Uses

Viscose fibres, like cotton, have a high moisture regain. It dyes easily, it does not shrink when heated, and it is biodegradable. It is used in many apparel end-uses, often blended with other fibres, and in hygienic disposables where its high absorbency is of great advantage. In filament yarn form it is excellent material for linings. It is used very little in home furnishing fabrics but in the industrial field, because of its thermal stability, a high modulus version is still the main product used in Europe to reinforce high speed tyres.

Item	viscose staple fiber
color	raw white in semi-dull and bright,black and dyed viscose staple fiber
specification	1.2d,1.5d,2d51mm,3d60mm,4.25*60mm
character	flame retardant,milk protein.
application	Viscose fiber is mainly used for weaving,knitting,threading and embroidery;suitable for production of high-grade clothing fabrics lining,underwear,knitting t-shirt,decorative cloth,nonwovenfabric,embroidry products,crochet productes and packing,etc.

;

2. viscose rayon fibres spec

Viscose Staple Fiber Quality Standard

Batch NO.		20120822D2-(13338002D)	Lustre	Bright
Specification		1.33detx×38mm	Grade	The First Grade
NO.		ITEM	UNIT	VALUE
Classify Index	1	Conditioned Tenacity	CN/dtex	2.32
	2	Conditioned Tenacity CV	%	8.7
	3	Wet Tenacity	CN/dtex	1.23
	4	Conditioned Elongation Rate in Break	%	21.8
	5	Fiber Length Deviation Rate	%	1.3
	6	Over Length	%	0.3
	7	Double Length	mg/100g	0
	8	Spinning Faults	mg/100g	3.6
	9	Residue of Sulfur	mg/100g	5.3
	10	Whiteness	%	84.4
	11	Smeary,Yellow Fiber	mg/100g	0
Test Index	12	Titer	Dtex	1.38
	13	Fiber Length	mm	38.5
	14	Oil Pick Up	%	0.26
	15	Moisture Regain	%	9.68

Rayon fiber is used in a wide range of applications including textiles and nonwoven products.

In the textile sector, Sateri's viscose staple fiber is used to improve comfort and appearance. They are:

Soft and silky to the touch
Moisture-absorbing
Non-allergenic
Anti-static
Easy to dye and excellent at retaining color brilliance

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

Precision Cut Viscose Rayon Semi-synthetic fibres

Precision 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.

In the nonwoven sector, viscose staple fiber provides high absorbency, high purity and bio-degradability, thus making it ideal for use in baby wipes, feminine hygiene products, medical pads and household wipes.

0.95 decitex

3.30 decitex

Viscose rayon is most commonly used in the production of standard paper and speciality papers. As the material is 100% biodegradable it is also globally accepted for use in environmentally friendly applications. It has been used in oil well drilling operations to replace non-biodegradable synthetic fibres.