Rayon – Regenerated Cellulose Fibers | Texhour

Rayon is composed of pure cellulose and made from wood pulp harvested from pine, spruce, hemlock, and bamboo. The fiber is made from cellulose that has been re-formed or regenerated.

Rayon – Regenerated Cellulose Fibers | Texhour
Rayon – Regenerated Cellulose Fibers

 

Rayon – Regenerated Cellulose Fibers:

• Rayon is composed of pure cellulose and made from wood pulp harvested from pine, spruce, hemlock, and bamboo. The fiber is made from cellulose that has been re-formed or regenerated.

• Purified cellulose is chemically converted to xanthate, this is then dissolved in dilute caustic soda creating a viscous solution, and then the cellulose is regenerated from this solution as it emerges from the spinneret in the form of a bright, lustrous filament.

• This advanced method of chemically breaking down polyose pulp to form regenerated polyose fiber ends up in a good deal of environmental pollution. This extruded filament can be used as a filament yarn or it can be cut into I” – 6” pieces and spun conventionally.

• Commercial rayon (called regular rayon) manufactured today still utilizes this “viscose” process of and the word Viscose is used interchangeably with Rayon to describe both the fiber and the fabric.

 

Rayon – Regenerated Cellulose Fibers

 

• Rayon is a man-made fiber, and not a natural one.

• Rayon is more moisture absorbent than cotton, soft, comfortable to wear, has a beautiful drape, and is easily dyed in a wide range of colors. It does not build up static electricity, nor will it pill unless the fabric is made from short-staple, low-twist yarn.

• Rayon does not insulate body heat making it ideal for use in hot and humid climates.

• Rayon has the moderate dry strength and abrasion resistance. Like other cellulosic fibers, it is not resilient, which means that it will wrinkle. Rayon blends well with both cotton & polyester.

• The tensile strength of regular rayon is reduced 40 – 70% when wet, and it becomes unstable and distorts. On being machine washed rayon garments can shrink up to 10%. Dry cleaning is usually recommended to preserve the appearance of rayon clothes.

• The count definition of spun rayon is the same as cotton – the number of hanks each 840 yards required to make one lb. (pound) of yarn is the count.