Abstract: The ultra-low formaldehyde non-iron finishing agent TF-650 was used for anti-wrinkle finishing on cotton twills. The paper examined how the quantity of no-iron finishing agent, the pH value of the solution, and the baking temperature and time affect the wrinkle recovery angle, loss in warp-wise strength, formaldehyde content, and the whiteness of the fabric. The results indicate that the best process conditions for cotton twill are as follows: using 90 g/L of non-iron finishing agent TF-650, setting the pH value of the finishing solution to 4, and baking the fabrics at 160 °C for 1 minute. The finished fabric has improved wrinkle resistance, minimal loss in warp-wise strength, reduced formaldehyde content, and a slight change in whiteness, to meet customer requirements.

Key words: non-ironing; wrinkle recovery angle; pH value; cotton twills