Patent ID: 8313816

Claim:
A method for manufacturing circular reticulate contact body element by cutting and processing a synthetic resin fiber block that is formed by gluing the intersections of fiber yarn formed in the shape of a three-dimensional reticulum comprising the steps of: cutting the synthetic resin fiber block to form fan shapes by dividing a disc-shaped body equally in radial direction forming fan shapes having a first face and a second face; making through holes from the first face to the second face in the fan-shaped reticulate contact body element precursor to insert spacers through; forming compression sections by compressing the periphery of the reticulate contact body element precursor and the circumferences of the through holes with a hot press machine; hot-pressing the first face and the second face of the reticulate contact body element precursor except its periphery and the circumferences of the through holes with the hot press machine at temperatures of 90-140° C. to make the void of the face of the reticulate contact body element precursor except its periphery and the circumferences of the through holes no less than 90% and no more than 98%; and promoting crystallization of the synthetic fiber by giving a rest period of no less than five days after the reticulate contact body element precursor has been hot-pressed.