| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a polyester fiber having silky squeaky feeling, dry touch feeling, natural harshness, soft feeling and glossy feeling and useful for high class woven/knit fabrics by blending a normal pressure-dyeable base component polymer with a disperse dye with a specified blend component polymer. SOLUTION: This fiber is obtained by blending at least two polymers such as (A) a normal pressure-dyeable base component polymer with a disperse dye of a copolyester copolymerized with 6.0-10 wt.% polyethylene glycol having an average molecular weight of 500-4,000 with (B) a blend component polymer of a copolymer copolymerized with 1.5-10 mol.% 5-sodium sulfoisophthalic acid, >=5 times higher in dissolution rate into an aqueous solution than the component A and extended in a striated manner to fiber axis direction. The fiber has cross section of sea-island look and has striated grooves in caustic reduction with an alkaline solution and the weight mixing rate of the component A and the component B is (55:45) to (95:5).</p> |
