Polyamide multifilament yarn
AssigneeTeijin Limited
InventorsTeruhiko Adachi, Hitoshi Ikeda
Life of this patent
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Abstract
Disclosed is a polyamide multifilament yarn comprising a plurality of polycapramide multifilaments and having a high softness, a mild touch, a level-dyeing property and an excellent colorfastness to washing and laundering. The individual filaments in this yarn are characterized by a birefringence of 0.045 or more, a denier of 0.8 or less and a ratio of the X-ray diffraction intensity I.sub.23 at an angle (2.theta.) of 23.2 degrees to the X-ray diffraction intensity I.sub.21 at a peak formed at an angle (2.theta.) of approximately 21 degrees which ranges from 0.50 to 1.00. A process for producing the above-mentioned polyamide yarn is also disclosed.
Claims8
A polyamide yarn which comprises a plurality of multifilaments consisting essentially of polycapramide, characterized in that the individual filaments in said yarn have a birefringence (.DELTA.n) of from 0.045 to 0.055, a denier from 0.4 to 0.8 and an X-ray diffraction intensity ratio satisfying the following relationship (I):
- 0.50.ltoreq.I.sub.23 /I.sub.21 .ltoreq.1.00 (I)
- wherein I.sub.23 represents the X-ray diffraction intensity at a Bragg reflection angle (2.theta.) of 23.2 degrees and I.sub.21 represents the X-ray diffraction intensity at a peak formed at a Bragg reflection angle (2.theta.) of around 21 degrees.
Dependencies are inferred from the claim text.