Exhaust gas purifying filter using honeycomb monolith with random length sealing portions

An exhaust gas purifying filter for removing carbon containing solid particles from a combustion exhaust gas, comprising:

• a honeycomb structural body having first and second opposite axial ends and defining flow passages extending between the ends, said flow passages being sealed alternately at both ends by means of sealing portions to form checkerboard patterns, wherein the axial lengths of the sealing portions formed in the flow passages of the honeycomb structural body vary randomly in a non-stepwise manner, wherein an imaginary line interconnecting the ends of the sealing portions along at least one of the first and second opposite axial ends of the honeycomb structural body is non-linear.