MANUFACTURE OF POROUS ROLL BY USE OF BELT-FORM NONWOVEN FABRIC HAVING ELASTIC FUNCTION

摘要

PURPOSE:To facilitate production of a porous roll of large diameter by laminating in ring form nonwoven fabric, formed helically and tightening it temporarily, thereby producing a ring having a dimensional width for making a roll body, and inserting numerous rings thus produced integrally on a roll axis body. CONSTITUTION:Nonwoven fabric formed as belt, having an elastic function, is formed into a herical corrective nonwoven fabric by extending in length- direction in respect to the outer peripheral face for a predetermined length. Then, the nonwoven fabric is laminated in ring form and the lamination is tightened temporarily via an adhesive, so that a ring C having a dimensional width for making a roll body is produced numerously. Numerous rings C thus produced are then fitted successively on the outer peripheral face of a roll axis body 1 provided with a flange 6, having a suction function, in lamination, and thus the lamination is tightened permapently for integration. The flange 6 is press attached to the nonwoven fabric lamination at its end, or to the roll axis body 1, so that a roll body material is obtained. By polishing the outer peripheral surfaces of the roll body material, a desired porous roll is thus achieved.