Texturizing a textile product
AssigneePierre Wahl
InventorJean J. Robillard
Life of this patent
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Abstract
A textile product formed of at least one thermoplastic yarn is texturized by subjecting the yarn simultaneously to a mechanical traction force and a high frequency electrical field applied at local points on the yarn. In order to increase the efficiency of texturizing, the yarn is moistened before it is subjected to the electrical field.
Claims11
A method of texturizing thermoplastic yarn comprising, moistening with a liquid thermoplastic yarn to be texturized, applying a tensile force to the moistened yarn and while applying said force subjecting local lengths of said yarn to a high frequency electrical field to heat it and simultaneously crimping said local lengths of yarn the moistened yarn being advanced longitudinally while applying said tensile force and said crimping being accomplished by change of directions of longitudinal advancement of said yarn at successive lengths of the yarn longitudinally of the yarn, and simultaneously subjecting the yarn to said high frequency electrical field during said change of direction of longitudinal advancement.
Apparatus for texturizing thermoplastic yarn comprising, a pair of electrodes electrically energized having surfaces over which a moistured thermoplastic yarn is advanced while the electrodes are energized, said electrodes having surfaces over which said yarn is advanced longitudinally and spaced relatively to effect a change of direction of travel of said yarn to thereby heat said yarn and crimp it, and means for advancing said yarn longitudinally subject to application of a tensile force thereto while advancing it.
Dependencies are inferred from the claim text.