棉织物双氧水/金属蛋白配合物的低温漂白

Low temperature bleaching of cotton fabric with hydrogen peroxide and metal protein complex

将自制的金属蛋白配合物应用于棉织物双氧水漂白工艺中,探讨金属蛋白配合物质量浓度、双氧水体积浓度、硅酸钠质量浓度,以及处理温度对棉织物漂白效果的影响。优化的金属蛋白配合物漂白工艺为:金属蛋白配合物2 g/L,30%双氧水10 m L/L,渗透剂JFC 1 g/L,精练剂0.2%(omf),在70℃下处理20 min,然后加入4 g/L硅酸钠,继续漂白处理30 min。结果表明,棉织物金属蛋白配合物低温70℃漂白的白度基本达到传统高温90℃漂白水平,且碱用量大大减少,织物损伤显著降低。

The self-made metal protein complex is applied to hydrogen peroxide bleaching of cotton fabric. The influences of temperature, concentrations of metal protein complex, sodium silicate and hydrogen peroxide on bleaching performance are studied. The optimum bleaching process is： metal protein complex 2 g/L, 30% H202 10 mL/L, penetrating agent JFC l g/L, scouring agent 0.2%（omf）, treating at 70 ℃ for 20 min, and then adding sodium silicate 4 g/L for further 30 min. Results show that the whiteness of cotton fabric bleached at 70 ℃ is similar to that of conventional bleaching at 90℃, with significantly less strength damage and reduced alkali consumption.