A bristle material for a brush. The bristle material for a brush is characterized by being configured using a gear-type-cross-section composite fiber that is formed from at least two types of resin phase, at least one of the types of resin phase being formed as a resin phase section that, at a fiber horizontal cross-section, is arranged in a 3-32-tooth gear pattern with respect to the other resin phase(s). A brush that uses said bristle material for a brush. The present invention can provide a bristle material that is for a brush and that can achieve a good balance between excellent cleaning properties at gap regions of a thing to be cleaned and excellent massaging effects with respect to the thing to be cleaned, and that can also achieve a unique feel, etc. and has an excellent appearance. The present invention can also provide a brush that uses said bristle material for a brush.一種刷子用毛材及一種使用其之刷子,該刷子用毛材係特徵為使用齒輪型剖面複合纖維所構成,該齒輪型剖面複合纖維係以至少2種類的樹脂相所形成,且其中至少1種的樹脂相於纖維橫剖面中形成相對於其它樹脂相而被配置成齒數3~32的齒輪型之樹脂相部。本發明可提供一種刷子用毛材與使用其之刷子,該刷子用毛材係能使被清掃物的間隙部位之優異清掃性與對於被清掃物優異的按摩效果平衡良好地並存,再者能得到獨特觸感等,且外觀亦優異。1‧‧‧刷子用毛材2‧‧‧齒輪型的樹脂相3‧‧‧其它樹脂相4‧‧‧齒輪型剖面複合纖維5‧‧‧頭細的錐形部
