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Carpet fibers

Fiber Selection

The esthetics and performance of carpet is similar to the fabric in your clothing. The type of fiber used, the construction of the cloth, and the color all play a role in the styling, cost, and performance of that garment.

All carpet yarn is manufactured from either a Staple or Continuous Filament (BCF) fiber. Staple fiber is a series of short, 6 to 7 inches in length, strings spun together to form one continuous filament. Several of these are twisted together to form a strand of yarn. BCF fiber is a continuous filament manufactured as one long string. These are twisted and heatset together to form a strand of yarn. Both of these processes create yarns that produce carpet products with distinctly different looks and characteristics.

A Description of Common Carpet Fibers

Nylon

The most frequently used carpet fiber, highly desirable due to its exceptional durability, versatility, and reasonable pricing. It can be dyed in an endless variety of colors and made into numerous styles and textures. Nylon is commonly used in residential and commercial applications.

Polyester

Used in residential and a few commercial applications, polyester has good color clarity, colorfastness, and resistance to water-soluble stains. All of Mohawk's staple polyester yarn comes from our state-of-the-art plastic bottle recycling facility. This "food-grade" PET Polyester fiber might be considered to be better quality than "carpet-grade" polyester fiber.

Polypropylene

Also known as Olefin, this fiber resists fading, generates low levels of static electricity, is favorably priced, and can be engineered in outdoor applications. Due to its manufacturing process, polypropylene inherently resists stains. When used in specific carpet constructions, this yarn will perform as well as most resilient fibers.

Wool

The most expensive of the fibers listed here, it is a natural fiber with moderate soil and stain resistance. Durable, luxurious "hand", reduced visible soil due to fine, light-scattering characteristics.

Fiber Performance in Carpet

Nylon (filament)         Nylon (staple)       Olefin (filament)        Polyester (staple)
Wool (staple)        Durability       Excellent        Excellent    Excellent    Excellent
Good   Resilience    Excellent    Excellent    Fair   Fair   Excellent   Stain Resistant*
Very Good   Very Good   Excellent    Very Good   Very Good   Soil Resistant**
Very Good   Very Good    Fair   Good   Very Good   Cleaning   Very Good
Very Good   Very Good   Good    Very Good

Available Colors    Excellent   Excellent   Fair   Very Good   Fair

Pilling & Fuzzing   Excellent   Fair   Very Good   Fair   Fair

Resistance to Household Cleaners   Very Good   Very Good   Excellent  Very Good Good

* assuming nylon is treated with a stain resistant chemical.
** assuming treatment with a soil resistant chemical.

Fiber Types and Characteristics

Fiber Type  Definition   Characteristics

Nylon
Fiber-forming substance of any long-chain, synthetic polyamide having recurring amide groups as an integral part of the polymer chain.

First used in 1959 in carpet.  Offered as BCF or staple. 
Used in residential and commercial applications. 
Produced as a solution-dyed fiber or white yarn to-be-dyed. 
Accounts for 65% of all face fibers in carpet.   Durable, resilient   Abrasion-resistant.

Versatile in coloration possibilities   Favorably priced.  Must be treated to be stain and soil resistant.   Polyester   Made from terephthalic acid and ethylene glycol.

Offered primarily as a staple product, although some BCF in being produced.

Used in residential and commercial applications.

100% of Mohawk's Staple Polyester is PET Polyester, manufactured from recycled plastic bottles.
Color clarity   Colorfastness   Resistant to water-soluble stains.   Noted for luxurious "hand".

Polypropylene   (Olefin)
Fiber-forming substance of any long-chain synthetic polymer composed of at least 85%, by weight, of ethylene, propylene, or other olefin units.
Offered primarily as BCF with some staple product available.   Primarily sold as solution-dyed or pre-dyed fiber.   Can be engineered for outdoor applications.
Resists fading.   Inherently stain resistant.   Limited color selection.  Generates low levels of static electricity.  Chemical, moisture, and stain resistant.  Favorably priced.

Wool
Natural fiber.  Offered as staple yarn.   Luxurious "hand"  Durable   Inherent resilient property   Scaly character of fiber scatters light and reduces visible soil. 
Largely self-extinguishing when burned. Will char rather than melt and drip
 

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