Yarn with heat-activated binder material and process of making
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United States of America Patent
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Nov 29, 2005
Issued Date -
N/A
app pub date -
Aug 31, 1998
filing date -
Jan 30, 1997
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Abstract
Yarn suitable for tufting comprises a base fiber ring spun or wrap spun with a second fiber at least partially comprising a heat-activated adhesive material such that the yarn includes from 0.1 to 12, preferably 0.25 to 10, weight percent adhesive material having a melting point within the range of 105° to 190° C., more preferably 165° to 190° C. A preferred base fiber is a synthetic staple fiber bundle. A preferred wrapping or insert fiber comprises copolyamide material, including ternary copolyamides of the 6/66/12 type. When the yarn is twist set by conventional processes and then tufted into carpet, the resulting carpet displays enhanced wear and appearance properties.
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