| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a knitted fabric that has excellent dimensional stability, elasticity, and a soft feeling, while maintaining strength, and to provide a method for producing the same. <P>SOLUTION: A knitted fabric of the present invention comprises acrylic fiber yarn and a polyurethane elastic fiber and has flexural rigidity of 0.020 gf cm<SP POS="POST">2</SP>/cm or less and burst strength of 200 kPa or more. A method for producing the knitted fabric of the present invention includes presetting a gray fabric obtained by knitting acrylic fiber yarns comprising acrylic short fibers and polyurethane elastic fibers under conditions of 180 to 200°C and 30 to 90 seconds. The acrylic short fiber has single fiber fineness of 0.3 to 2.2 dtex, tensile strength of 2.0 cN/dtex or more, and a reduction rate of the tensile strength after dry heat treatment (at 190°C for 60 seconds) is 20% or less. In the gray fabric, the fiber diameter ratio of the acrylic fiber yarn to the polyurethane elastic fiber is 1.3 to 4.0, the ratio of the acrylic fiber yarns is 91 to 99 mass%, and the ratio of the polyurethane elastic fibers is 1 to 9 mass%. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
