Problem to be solved: to provide a wetting detection system for a paper diaper which can be constructed in a low-cost system without any discomfort of the diaper wearer and saving the labor of the manager.The paper diaper 11a-11c is provided with each of the paper diaper 11a-11c, which has inherent information and receives the radio wave from outside and transmits the specific information as a radio wave, while at least one radio wave to be received or transmitted is shielded when the amount of the surrounding liquid is increased The IC tag 12a-12c and the radio wave RW2 sent from each of the IC tags 12a-12c are transmitted to the paper diaper 11a-11c and the IC tag 12a-1 transmitted from each of the IC tags 12a toOn the basis of whether or not each of the paper diaper 11a to 11C is in the wet state, the reader 14 is provided with a smart phone 15 for notifying the outside of the wetting information indicating whether or not each of the diapers 11a to 11C is in the wet state, on the basis of whether or not the paper diaper 11a to 11C are in the wet state.Diagram【課題】紙おむつ着用者の違和感がなく、管理者の手間が省け、低廉にシステム構築可能な紙おむつの濡れ検出システムを提供する。【解決手段】紙おむつ11a~11cと、固有情報を有し、外部からの電波を受信して該固有情報を電波として発信すると共に、周囲の液体の量が多くなると、受信又は発信する少なくとも一方の電波が遮蔽される、紙おむつ11a~11cの各々に設けられたICタグ12a~12cと、紙おむつ11a~11cに対して電波RW1を発信すると共に、ICタグ12a~12cの各々から発信される電波RW2を受信して、ICタグ12a~12cの各々の固有情報を転送する読取装置14と、読取装置14から転送される固有情報の受信の可否に基づいて、紙おむつ11a~11cの各々が濡れ状態にあるか否かを示す濡れ情報を外部に通知するスマートフォン15とを備える。【選択図】図1
