| 摘要 |
[PROBLEMS] To provide a spun yarn or a woven fabric which is reduced in the see-through feeling even when it is a thin undyed cloth, exhibits high UV-cut, is excellent in the rapid drying property for absorbed water and in the coloring property, and is rich in the anti-pilling property and has a soft feeling without the use of a modified polyester fiber, and can be produced at a low cost. [MEANS FOR SOLVING PROBLEMS] An air-jet interlacing spun yarn containing a highly profile polyester fiber having a profile degree (the ratio of a circumscribed circle to an inscribed circle) of the fiber cross section of 1.8 or more or a hollow polyester fiber having a hollow proportion of 8 % or more, wherein the polyester fiber has a fineness of 3.5 dtex or less and said spun yarn has a number of fluffs per 10 m of the yarn length of not less than 30 and less than 350 pieces with respect to the fluff having a length of 1 mm or longer, and of less than 15 pieces with respect to the one having a length of 3 mm or longer; and a woven fabric which comprises the above air-jet interlacing spun yarn, exhibits a pilling of three grade or higher, a UV- cut of 84 % or more and a transmittance for visible light rays of 40 % or less.
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