College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, PR China.
Int J Biol Macromol. 2012 Apr 1;50(3):782-7. doi: 10.1016/j.ijbiomac.2011.11.025. Epub 2011 Dec 6.
This study evaluates the bleaching efficiency of the hydrogen peroxide bleaching process combined with laccase-mediated system pretreatment (LMS-HPBP) in the treatment of scoured cotton fabric. By changing the factors of laccase-mediated system pretreatment and the hydrogen peroxide bleaching process and examining the subsequent whiteness value and retained tensile strength of the samples, we find three LMS-HPBP processes that are more environment friendly than the conventional hydrogen peroxide bleaching process (CHPBP): (i) bleaching with lower dosage of hydrogen peroxide; (ii) bleaching at reduced temperature; (iii) bleaching for shortened duration. Whiteness, retained tensile strength and K/S values of cotton fabric samples treated by i-iii processes were similar to or higher than those by CHPBP. X-ray diffraction (XRD) analysis also demonstrated that the three processes rendered fabric of both lower crystallinity and bigger crystallite size than those by CHPBP. In addition, the "green" short-flow process was developed to treat cotton fabric and the results obtained shows this method is feasible as a new energy-saving process.
本研究评估了用过氧化氢漂白工艺与漆酶介体系统预处理（LMS-HPBP）联合处理精练棉织物的漂白效果。通过改变漆酶介体系统预处理和过氧化氢漂白工艺的因素，并检查样品随后的白度值和保留的拉伸强度，我们发现三种比传统过氧化氢漂白工艺（CHPBP）更环保的 LMS-HPBP 工艺：（i）使用较低剂量的过氧化氢漂白；（ii）在降低的温度下漂白；（iii）缩短漂白时间。经工艺 i-iii 处理的棉织物样品的白度、保留的拉伸强度和 K/S 值与 CHPBP 相当或更高。X 射线衍射（XRD）分析还表明，这三种工艺使织物的结晶度低于 CHPBP，晶粒尺寸大于 CHPBP。此外，还开发了“绿色”短流程工艺来处理棉织物，所得结果表明该方法是一种可行的节能新工艺。
