To obtain the subject tow excellent in shear resistance and flexibility, light and suitable for production of sports wears and protective clothing by including a dyeable poly-para-phenylene terephthalamide fiber having a predetermined tensile strength, crystal size and water content.
This tow comprises a dyeable poly-para-phenylene terephthalamide fiber ≥15 g/d in tensile strength, 30 to 55 in crystal size (110 orientation), and ≥6% in water content before dyeing. Preferably, each filament, forming the poly-para-phenylene terephthalamide fiber toe, is ≤6 d in fineness, ≥15 g/d in break strength, ≤5% in tensile elongation at break, ≤70% in elastic modulus in elongation of fiber at 3% elongation, ≤20% in degree of variability of the tensile strength, ≥200 g/d in the initial degree of tensile resistance, 3 to 13 pieces of in. in crimp, and 4 to 11% in crimp percentage, thus resulting in 100,000 to 400,000 deniers in the total denier of the tow.
HATANO TAKESHI
FUKUYAMA KANAKO
TORAY DU PONT KK
| JPS63235521A | 1988-09-30 | |||
| JPS6036504B2 | 1985-08-21 | |||
| JPH09157981A | 1997-06-17 | |||
| JPH0450312A | 1992-02-19 | |||
| JPH11217727A | 1999-08-10 | |||
| JPS61167015A | 1986-07-28 | |||
| JPH04500394A | 1992-01-23 | |||
| JP2000080526A | 2000-03-21 | |||
| JP2000144526A | 2000-05-26 |
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