Adhesive material for use in residue confirmation, and method for confirmation of residue remaining on object to be cleaned after cleaning using the same
Adhesive material for use in residue confirmation, which is applied in advance to an object to be cleaned for confirmation of a residue remaining on the object after cleaning, comprising chips produced during object cutting work, whereby the surface color of the chips is different to the one of the object. The adhesive material is preferably formed by coating and coloring the chips with paint, the paint emitting visible light in an excited state.