| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a weft knitted fabric maintaining extensibility, etc., essential to polyurethane elastic fibers even when an alkali treatment is carried out during scouring, etc., and fixing a knitted construction and scarcely causing deformation, etc., by thermally fusing mutual fibers in crossed points thereof. <P>SOLUTION: The weft knitted fabric for polyurethane elastic fiber blends is obtained as follows. Bare fibers of highly fusible and alkali-resistant polyurethane elastic fibers having≥50% strength retention after a dry-heat treatment in a state of 100% elongation at 150°C for 45 s,≤180°C melting point and≥60% strength retention after a treatment in a state of 100% elongation at 100°C for 60 min with a 2 g/L aqueous solution of NaOH are plated with all of loop meshes, respectively constituting the weft knitted fabric of a 1×1 rib stitch construction or an internal yarn-inserted reversible knitted construction composed of non-elastic fibers. The mutual highly fusible and alkali-resistant polyurethane elastic fibers and/or the crossed points thereof with the non-elastic fibers are thermally fused. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
