| 摘要 |
PROBLEM TO BE SOLVED: To provide shoes sole members with excellent anti-slippage performances by mixing a rubber fabric for shoes soles with a cork bulk solid having porosity, hygroscopicity and ground contact cushioning properties. SOLUTION: The shoes sole members are produced as follows: An unvulcanized rubber obtained by blending a natural rubber with a synthetic rubber is mixed with the cork bulk solid and the mixture is thermally pressurized and then vulcanized, or an unvulcanized rubber for forming upper soles as thick layers and an unvulcanized rubber for forming ground contact soles as thin layers are integrally vulcanized and the unvulcanized rubber for forming the ground contact soles is mixed with the cork bulk solid. After the formation, the bottom surfaces contacting the ground of the sole members undergo a buffing processing. The cork bulk solid is porous and can remove moisture films on the surfaces of ice and snow, or the like without losing moisture absorbing/releasing performances and functions of preventing slippage under the saturation thereof like other moisture absorbing materials, and in regard to proper cushioning properties, it increases the area contacting the ground and achieves excellent slippage preventing performances. The cork bulk solid can utilize surplus, waste materials as byproducts, and the like, for re-using and can be better mingled with the rubber thereby eliminating pre-treatment as well.
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