| 摘要 |
PURPOSE:To prevent an abrasive fabric from being torn off a concave groove during rotation at high speed as well as to improve its durability ever so better, forming a dense layer of polyurethane elastomer in and around a surface of the concave groove of a short fiber mingled body. CONSTITUTION:A concave groove 4 is formed in the surface of a short fiber mingled body 2 filling up polyurethane elastomer, having a fine porous structure, ion an empty space of a fiber base material by means of high frequency heating compression. Simultaneously with this formation, a dense layer 5 of this polyurethane elastomer is formed in and around a surface of this concave groove 4, thus an abrasive ground fabric is produced. In this abrasive ground fabric produced like this, even if it rotates at high speed, the fabric forming the fiber base material in a way of unitizing the short fiber mingled body 2 is in no case torn off from this concave groove 4, leading to improvements in its durability. In addition, this concave groove 4 serves as an abrasive solution feed passage whereby an abrasive solution flows without any resistance and no loading happens there. |
