Cotton fabrics were treated with BTCA and BTCA/PU to improve the winkle recovery property. Various concentrations of BTCA and BTCA/PU were treated on cotton fabrics by UV irradiation (UV intensity) and dry-cure technique (curing temperature). The crosslink reaction could be confirmed by ATR-FTIR spectroscopy. The physical properties such as add-on, WR rating, tensile strength and initial elasticity after the fabric treatment were also investigated. As a result of this study, fabrics treated by UV irradiation appeared to have higher add-on and lower tensile strength than that treated by heat treatment. BTCA/PU, containing PU as an additive, can improve the fabric stiffness resulting from the crosslink reaction in both UV irradiation and heat treatment. It was confirmed by tensile strength and initial elasticity.