PROBLEM TO BE SOLVED: To provide an interdental cleaning tool which is soft and elastic to be easily compressed and deformed, can be easily inserted into a narrow interdental part, has high durability and is persistent in comfortable sense of use.SOLUTION: This interdental cleaning tool includes a cleaning section 4 having a bar-like core material 2 covered with a foaming body 3. The foaming body 3 of the cleaning portion 4 is formed of a resin to be molten at a melting temperature lower than that of the core material 2. In the foaming body 3 of the cleaning section 4, a mean cell area of bubbles is 400-70,000 &mum2 and a mean thickness of a skin layer is 100 &mum or less.COPYRIGHT: (C)2012,JPO&INPIT【課題】柔らかくて弾力性があり圧縮変形し易く、狭い歯間に挿入し易く、耐久性が高く心地良い使用感の持続性が高い歯間清掃具を提供すること。【解決手段】本発明の歯間清掃具1は、棒状の芯材2を発泡体3で被覆した清掃部4を備えている。清掃部4の発泡体3は、芯材2の材質より低い温度で溶融する樹脂で形成されている。清掃部4の発泡体3は、気泡の平均セル面積が400~70000μm2であり、スキン層の平均厚みが100μm以下である。【選択図】図1
