UV ABSORBERS

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Various chemicals or polymers added to the product that absorb the ultraviolet light or otherwise make the material resistant to ultraviolet degradation.

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UNBONDED

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A fiberfill material that has not had any form of bonding treatment. References for this information: Inda

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ULTRASONIC BONDING

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The use of high frequency sound to generate localized heat through vibration and thereby cause thermoplastic fibers to bond to one another. See also SONIC BONDING. References for this information:…

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UNIDIRECTIONAL

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Performing best in only one direction; generally applied to nonwovens in which the fabric strength is highly oriented in the direction of web travel through the forming process. References for…

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TUFTING

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Make insertions of clumps of fibers into depressions in the base fabric to form a 3D structure with the tufts of fibers oriented in the vertical direction. References for this…

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TOW

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A bundle of continuous filaments. The form of most manmade filaments before being cut into staple. References for this information: Inda Edana

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TOUGHNESS

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Ability to absorb work. Commonly measured as the area under the stress/strain curve. The opposite of brittleness. References for this information: Inda Edana

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