a liquid - permeating sheet having an antibacterial - containing polymer coating part disposed on the side opposite to the skin side is bonded to a back waist area of a diaper base . when a wearer sweats , the sweat penetrates the antibacterial - containing polymer part through the liquid - permeating sheet . the antibacterial contained in the antibacterial - containing polymer containing , part then comes into the sweat to inhibit the propagation of staphylococcus epidermidis .