PROBLEM TO BE SOLVED: To provide an interdental cleaning tool having a structure configured to further improve shape retention of a cleaning part.SOLUTION: An interdental cleaning tool 100 includes a cleaning part 10 including a bar-shaped core material 11 and a foam body 12 that covers the core material 11. The foam body 12 includes first parts 13, and second parts 14 each including a protrusion 15 protruded outwardly in a radial direction of the core material 11 compared to the first parts 13. The first parts and the second parts are alternately disposed along an axial direction of the core material 11. A skin layer 12a is formed throughout an outer peripheral surface of the first parts 13.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】清掃部の保形性がより良好となる構造の歯間清掃具を提供する。【解決手段】歯間清掃具１００は、棒状の芯材１１と、芯材１１を被覆している発泡体１２と、を有する清掃部１０を備え、発泡体１２は、第１部分１３と、第１部分１３よりも芯材１１の径方向外方に突出している突出部１５を含む第２部分１４と、を芯材１１の軸方向に沿って交互に備え、第１部分１３の外周面の全周に亘ってスキン層１２ａが形成されている。【選択図】図２
