| 摘要 |
A brush bristle material has at least one kind of diamond abrasive grains or abrading grains contained in a mixed state in a synthetic resin material formed of single threads. The synthetic resin material, while being formed into a linear material from chips, is caused to contain in a mixed state the abrasive grains and eventually manufactured into one brush. A plurality of at least one kind of brush bristles are bundled and consequently finished as a brush bristle material. The covering containing in a mixed state the abrasive grains encloses the bundle from the part excluding the part fixed by the tubular body through the distal end part. Though the brush bristle material has been at a disadvantage in revealing weak nerve due to a large bristle height, the covering has succeeded in canceling the disadvantage. This invention concerns a brush bristle material and a brush for a tubular brush or a segment brush having a large brush bristle height.
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