| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoplastic resin sheet rolled web in which a special provision of an inching roller or the like is not needed, even if the resin sheet rolled web has large weight at the beginning when it is used, the resin sheet which was coiled around a core does not break and move in a zigzag direction. SOLUTION: The sheet rolled web has the scale of enlargement Z computed by the formula (Z=X/Y×100) which is not more than 145% as follows: the part from the winding start end to the 1st round part of the sheet rolled web is cut out and is placed on a level surface making a width direction vertical. An average value X of each curvature radius (a, b, c, d) of the part of a circular arc length of 200-300 mm from the above winding start end to a cutting end is measured. The radius of the winding start of the sheet rolled web is defined as Y. COPYRIGHT: (C)2006,JPO&NCIPI
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