Abstract: The object is to provide a manufacturing method of various elastic rollers whose rubber hardness is remarkably reduced. A hollow cylindrical rubber tube (1) is prepared. Thereafter, a metal shaft (2) is inserted in the rubber tube and the rubber tube is secured to the shaft. Thereafter, a coating layer (1a) on the outer peripheral surface of the rubber tube is removed. The rubber roller is located in a chamber and is subject to one or more pressuring operations and one or more evacuating operations to transform the continuous cell rubber layer into an open cell rubber layer. After that, a fluororesin tube is provided to cover the rubber tube or silicone oil is impregnated in the rubber tube, in accordance with the purpose of use of the rubber roller.

Abstract: The object is to provide a manufacturing method of various elastic rollers whose rubber hardness is remarkably reduced. A hollow cylindrical rubber tube (1) is prepared. Thereafter, a metal shaft (2) is inserted in the rubber tube and the rubber tube is secured to the shaft. Thereafter, a coating layer (1a) on the outer peripheral surface of the rubber tube is removed. The rubber roller is located in a chamber and is subject to one or more pressuring operations and one or more evacuating operations to transform the continuous cell rubber layer into an open cell rubber layer. After that, a fluororesin tube is provided to cover the rubber tube or silicone oil is impregnated in the rubber tube, in accordance with the purpose of use of the rubber roller.