PROBLEM TO BE SOLVED: To solve the problems that: since a conventional perspiration amount detecting system has a hard humidity sensor, when a person sleeps thereon, the humidity sensor abuts on the body and hinders sleep a perspiration amount is detected only a place where the humidity sensor is arranged so as to make a detection accuracy low and there is required a step of attaching the humidity sensor to sheets or a mattress in order to construct the perspiration amount detecting system.SOLUTION: A perspiration amount detecting sheets of the present invention is a perspiration amount detecting sheets which comprises a laminated product in which a first cloth, a water absorbing material, and a second cloth are laminated in this order, and conductive threads which stitch the laminated product in a lattice-like state. The water absorbing material is a material in which at least one of an electric resistance value and a dielectric constant changes through water absorption, and the conductive threads which form a lattice are electrically insulated from each other in intersection points of the lattice.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】従来の発汗量検出システムには、湿度センサが硬いために人間がその上に寝ると湿度センサが体に当たり睡眠を妨げられる。また、発汗量を検出できるのは湿度センサを配置した箇所のみであるため、検出精度が低い。さらに、発汗量検出システムを構築するためには、湿度センサをシーツまたはマットレスに取り付ける工程が必要である。【解決手段】本発明の発汗量検出シーツは、第1布、吸水材、第2布の順に積層された積層物と、積層物を格子状に縫合している導電性の糸とからなる発汗量検出シーツであって、吸水材は、水分の吸収によって電気抵抗値または誘電率の少なくとも一方が変化する材質であり、格子を形成している導電性の糸は、格子の交点で互いに電気的に絶縁されている。【選択図】図1
