1. A device for inspecting a raised fiber state of a web member of a sanitary article, the web member having, on at least one face, fiber raisable parts that come off from the one face in a predetermined dispersed arrangement pattern, new exposed parts being created on the one face when the fiber raisable parts come off to be raised, wherein the inspection device includes: an image capturing processing part that captures an image of the one face and creates as a planar image data, a data of a planar image of the one face; a binarization processing part that performs, when creating a binarized image based on the planar image data, a binarization process so that areas in which images of the new exposed parts in the planar image are captured, are included in an image specified by one value of two values in the binarized image; and a quality judgment processing part that performs quality judgment of the raised fiber state based on an image specified by one value of two values, the web member includes a continuous web continuing along a transport direction and a fibrous member provided to cover at least one face of the continuous web, the fibrous member has a fiber direction positioned along the transport direction, joining parts that join the continuous web and the fibrous member, are formed intermittently in the transport direction, and the fiber raisable parts are formed by cutting the fibrous member at a cutting position between the joining parts adjacent to each other in the transport direction and configuring a cut end part of the fibrous member to be standable with the joining part as a base end part, the device for inspecting the raised fiber state of the web member of the sanitary article further including a second image capturing processing part that captures an image of a face of the fibrous member side of the web member and creates a planar image data of the fibrous member as a second planar image data, a second binarization processing part that performs, when creating a binarized image based on the second planar image data, a binarization process so that an area is included in an image specified by one value of two values in the binarized image, an image of a cutting trace made by cutting at the cutting position being captured in the area, and a second quality judgment processing part that judges whether or not the cutting position is positioned in a target forming range with regard to the transport direction, based on the second planar image data and based on an image specified by one value of two values.