When glyoxal was used as a crosslinking agent and aluminium ammonium sulfate as a catalyst for durable-press finishing, coreactants and additives to minimize the decrease of physical properties of durable-press finished cotton fabrics were studied. Also, optimum conditions such as coreactant/glyoxal mole ratio, the concentration of additives and the effects of one-bath and two-bath were investigated. Under the optimum concentration of DEG, the whiteness and strength retention of the fabrics treated with glyoxal/DEG/additive mixtures were increased while wrinkle recovery angles were decreased significantly. Under the optimum concentration of each additive, cotton fabrics were treated with various impregnation time in order to find the effect of two-bath method. The whiteness of cotton fabrics was increased by two-bath method, and wrinkle recovery angles were decreased either slightly or unchanged while the strength retention was not affected.