新型无甲醛防皱整理剂BTP400在棉织物上的应用

为提升无甲醛防皱整理棉织物的品质，以自制含双二氯均三嗪基团的无甲醛防皱整理剂BTP400浸渍整理织物，探究BTP400与织物的结合方式，研究了影响BTP400固着棉织物效率的因素，并考察了固着的BTP400质量分数与织物防皱性能间的关系。优化得到的防皱整理工艺条件：BTP400、碳酸钠和硫酸钠3种助剂的质量浓度分别为10、8、5 g／L，浸渍温度为50℃，浸渍时间为50min。结果表明：BTP400以共价键与织物连接，最高固着率为42.7％；随固着的BTP400 质量分数的增高，织物干、湿态折皱回复角增大，最大值分别提高47.1％ 和19.3％；整理棉织物外观平整度等级为3级，耐水洗性良好，且强力及白度与原织物持平；BTP400防皱整理织物的综合品质优于丁烷四羧酸和醚化2D树脂整理织物。

Anti-crease finishing of cotton fabric with formaldehyde-free agent BTP400

Aiming at improving the quality of formaldehyde-free finished cotton fabrics, a novel anti-crease agent bearing two dichlorophenyltriazine groups was applied to finish cotton fabrics following an impregnation technology. The effects of operation parameters on fix ratios of BTP 400 on fabrics are investigated. This allows for the acquisition of mass concentrations of BTP 400 on cotton fabrics, as well as the relationship between the mass concentrations of BTP400 and anti-crease performance of the finished fabrics. First, at a fixed BTP400 concentration of 10 g/L in the working liquid, the anti-crease finishing process conditions were optimized to be: the mass concentrations of sodium carbonate and sodium sulfate were 8 g/L and 5 g/L, respectively; the temperature and the duration of processing were 50℃ and 50 min. Under these optimized processing conditions, the fix ratio of BTP400 attained the highest value of 42.7%. BTP400 was demonstrated to be capable of covalently bonding with cellulose fibers. The dry crease and wet crease recovery angles were increased by 47.1% and 19.3%, respectively, in the case when the on the mass fraction of fixed BTP400 on the fabrics was as low as 0.21%. The DP grade of finished cotton fabric was 3, and shew high washing durability. Meanwhile, neither strength loss nor yellowing of the finished cotton fabric was noticed. These performances of BTP400 were far superior to the anti-crease agents like BTCA and etherified 2D resin．