Method for manufacturing roll, and roll

Abstract

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 ( 62 a , 62 a ) 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 ( 73 a ), the pair of groove side surfaces ( 62 a , 62 a ) and a pair of wound end surfaces ( 73 c ) formed by both ends in the width direction of a plurality of wound layers ( 73 b ) 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.

1 . A method of manufacturing a roll in which a long element having an adhesive agent and a predetermined width is wound by a winding unit so that the long element forms a plurality of wound layers in a radial direction from the winding unit to a roll surface, the method comprising:
 arranging, in a position distant from the roll surface, an alignment groove having a pair of groove side surfaces configured to contact both ends of the long element relative to the width direction;   causing each of the pair of groove side surfaces to be on the same plane as the corresponding one of a pair of wound end surfaces formed by both ends of the wound layers relative to the width direction; and   placing the long element on the alignment groove and winding the long element on the roll.   
     
     
         2 . The method according to  claim 1 , wherein
 the alignment groove has a groove depth greater than the thickness of the long element.   
     
     
         3 . The method according to  claim 2 , wherein
 the winding is carried out while the alignment groove is moved in a forwarding direction of the long element.   
     
     
         4 . The method according to  claim 3 , wherein
 the alignment roller having the alignment groove around its circumference is rotated about the axis of the alignment roller, thereby moving the alignment groove in the forwarding direction of the long element.   
     
     
         5 . A roll manufactured by the manufacturing method according to  claim 1 , wherein
 a maximum amount of irregularity in the both ends of the wound layers of the long element relative to the width direction is 0 mm to not more than 1.0 mm.   
     
     
         6 . A roll manufactured by the manufacturing method according to  claim 2 , wherein
 a maximum amount of irregularity in the both ends of the wound layers of the long element relative to the width direction is 0 mm to not more than 1.0 mm.   
     
     
         7 . A roll manufactured by the manufacturing method according to  claim 3 , wherein
 a maximum amount of irregularity in the both ends of the wound layers of the long element relative to the width direction is 0 mm to not more than 1.0 mm.   
     
     
         8 . A roll manufactured by the manufacturing method according to  claim 4 , wherein
 a maximum amount of irregularity in the both ends of the wound layers of the long element relative to the width direction is 0 mm to not more than 1.0 mm.