Abstract: A method of manufacturing an anti-soiling carpet comprises a step of treating a carpet with a liquid solution containing an anti-soiling agent, the anti-soiling agent containing a non-fluorinated polymer (?) and a non-fluorinated polymer (ii), the non-fluorinated polymer (?) containing a constituent unit derived from a monomer represented by formula (A-1) with a specified ratio and another constituent unit derived from a specified (meth)acrylate ester monomer, the non-fluorinated polymer (?) containing a constituent unit derived from at least one monomer of methyl methacrylate and ethyl methacrylate with a specified ratio and a another constituent unit derived from another specified (meth)acrylate ester monomer: wherein R1 represents a hydrogen atom or a methyl group, and R2 represents a monovalent hydrocarbon group having 12 to 30 carbon atoms, optionally having a substituent.