HONEYCOMB STRUCTURE, METHOD OF MANUFACTURING THE SAME, METHOD OF READING INFORMATION, AND METHOD OF INSPECTION

摘要

PROBLEM TO BE SOLVED: To provide a honeycomb structure capable of enabling accurate reading of information printed on a surface of the honeycomb structure or accurate inspection of defects in a coating film formed on the surface.SOLUTION: There is provided a honeycomb structure in which a plurality of cells 20a are arranged in parallel in a length direction with cell walls 20c therebetween, and containing aluminum titanate ceramic. On the surface of the honeycomb structure, information 30 related to the honeycomb structure is printed with ink containing an ingredient that emits light by irradiation of ultraviolet rays or a coating film is formed that contains an ingredient that emits light by irradiation of ultraviolet rays.