摘要 |
PURPOSE:To obtain a roll excellent in durability by a method wherein nylon powder is applied on the internal surface of a tubular mold fitted with a releasing film and is subjected to solvent welding processing, an adhesive is applied thereafter onto the inner peripheral surface of the mold, and a roll shaft and rubber are put therein and vulcanized. CONSTITUTION:A film 2 processed by fluoroplastic or the like for facilitating release is fitted inseparably on the molding surface 1a of a tubular mold 1, and nylon powder is applied onto the inner peripheral surface of said processed film 2. Then, heating solvent welding is applied thereto so that a nylon film 3 is formed in separable connection to the processed film. Next, the inner peripheral surface of the film 3 is ground, an adhesive 4 is then applied thereon, and a roll shaft 5 is inserted into the tubular mold 1 thus prepared, while both ends 5a of the shaft are supported and sealed up by supporting split dies 6. The roll shaft thus prepared is set in the retaining dies 7 of the tubular mold 1 which are composed of top and bottom forces, unvulcanized rubber is injected into a gap part 8 inside the dies 7, and thus the main body 9 of the roll is vulcanized and aged. By this method, a rubber roll 10 with the nylon film 3 fitted on the main body 9 thereof is obtained. |