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Crushing & Matting in Carpet

Crushing is when a face yarn fails to maintain its retention while  matting is when the fibers fuzz and entangles so that the yarns appear as one.

Your face yarn is an important issue in determining why your yarn is crushing. Also, there is a warranty covering your problem but for it to be covered, an installation that meets Carpet and Rug Institute standards will be necessary.

If your carpet meets minimum installation standards, then Laboratory testing will normally be required for a manufacturer to honor a warranty.

hexapod_crushing.jpg (10068 bytes) The following is an example of some of the performance tests offered:
Dupont pilling & fuzzing (TRL-609 severe random tumble)
Accelerated soiling (AATCC 123)

Roll chair testing

Tetrapod walker (ASTM D-5251)

The picture and reference in this frame is being used with permission from:

Stain resistance
P.O. Box 1948
Moisture Impact Penetration
Dalton, Georgia 30722-1948
Hexapod Testing (ASTM D-5252)
Phone (706) 278-3013
Foot Traffic Testing (CRI TM-100/ASTM Draft
Fax (706) 272-7057

OLEFIN is the lease *resilient yarn there is. If you have olefin, you may still be in luck, because there are warranties covering crushing. Laboratory testing will be necessary to verify if the yarn fails to meet a minimum standard. Olefin is naturally stain resistant, fade resistant , and has the best characteristics for being non-allergenic. See Olefin Carpet for more information.

POLYESTER is the second lease resilient fiber. However, you may have a warranty that could be honored if your installation is good and if the fiber failed to meet the standards set in testing. Polyester has been known as the most 'oil absorbent' material used in carpet. Polyester is naturally stain resistant and fade resistant.

NYLON has been the most resilient synthetic fiber there is and has not had a warranty for crushing until its sixth generation. Like olefin and polyester, your installation needs to be  good and the fiber fails to meet the standards set in testing. There is a stronger chance that you are suffering from a soapy residue problem and a problem in the installation if your yarn is nylon.

CORTERRA is a new fiber by SHELL Chemical and is reportedly more resilient than nylon. If so, then this would be the most resilient synthetic fiber. To see SHELL'S information on this click here.

WOOL is the most resilient fiber there is, however, we still hear of problems with crushing. Chances are that you have a latex problem if wool is your fiber.

Number eight of the CRI CLAIMS MANUAL says this:

"Pile crushing, pile shading, and soiling are not manufacturing defects and will not be considered as a basis for claims. Claims for fuzzing and pilling will be subjected to examination and testing by the manufacturer. Claims for missing tufts will not be considered except on a basis of repair. No claims will be honored for carpet installed on stairs, in elevators and in bathrooms. The mill reserves the right to correct any repairable manufacturing defect. (See Glossary for definition of terms)."

* Resilient or Resiliency is the ability of the yarn to spring back or regain its original posture after being stepped on or crushed.

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Revised: 05/14/06

All contents of documents at this domain copyright 1998.