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natural fibers
Plant and animal fibers.

Plant fibers include cotton, flax, hemp, jute, etc.

Animal fibers include wool, camel hair, angora, silk, etc.

Natural fibers have been used by humans for thousands of years; as, animal hair and plant fibers were spun into yarn and woven into textiles and the modern textile industry is still based on those ancient technologies.

Both natural and synthetic fibers consist of linear polymers. These polymers are converted into fibrous form by growth (animal hair and plant fibers) or extrusion (spider and silk worm) and are specifically oriented to the fiber axis.

This entry is located in the following unit: fibro-, fibr-, fiber- + (page 7)