| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a stretchable sheet by which a stretchable sheet showing a preferable stretching property relative to a plurality of directions is produced continuously and efficiently by a simple apparatus. <P>SOLUTION: The method includes the step of fixedly holding an elastic thread 7 fed by being wound around a pair of thread conveying longitudinal structures 12 and 13 separated in a direction orthogonal to a sheet feeding direction, between belt-shaped sheets 50 and 60. A time period required to feed a part of the elastic thread 7 which makes contact with one longitudinal structure 12, from a first contact part P1 to a fixed portion P3 to the belt-shaped sheet, is different from a time period required to feed a part of the elastic thread 7 which makes contact with the other longitudinal structure 13 from a first contact part P2 to the fixed portion P3, and the stretchable sheet 3A is obtained which includes a first elastic thread 7A having an inclination angle relative to a direction orthogonal to a sheet feeding direction of 0-30 degrees, and a second elastic thread 7B having an inclination angle larger than that of the first elastic thread. <P>COPYRIGHT: (C)2012,JPO&INPIT |
