JOURNAL OF TEXTILE RESEARCH ›› 2016, Vol. 37 ›› Issue (08): 77-82.
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Abstract:
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.
Key words: cotton fabric, anti-crease finising agent, fix ratio, crease recovery angle
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