METHOD FOR MANUFACTURING ROLL, AND ROLL

In order to obtain a roll (73) having a sufficiently small amount of irregularity in the layers of long element (72) on the roll (73), an alignment groove (62) provided with a pair of groove side surfaces (62a, 62a) that are in contact with both ends in the width direction of the long element (72) is disposed at a position distant from a roll surface (73a), the pair of groove side surfaces (62a, 62a) and a pair of wound end surfaces (73c) formed by both ends in the width direction of a plurality of wound layers (73b) are disposed so as to be present on the same plane, and the long element (72) is hung on the alignment groove (62) and forwarded for winding.