In traditional deinking process, large amounts of chemicals are required which makes these methods expensive and polluting. Also, application of sustainable material implies the use of green processes to reduce waste and pollution. Green enzymatic deinking processes are alternatives to those technologies that have negative effects on the environment. In this work, we applied response surface methodology for deinking the electrophotography-printed paper based on a systematic experimental pattern. The individual and interactive effects of enzymatic deinking parameters including time, temperature, and enzyme dosage on the handsheet properties were investigated. Different analyses were carried out to determine the best process conditions of enzymatic deinking to optimize the handsheet properties (i.e., tensile, burst, whiteness, and brightness). The obtained responses of an oven-dried fiber at 45 min, 43 °C and the enzyme concentration of 1 mg/15 g were 12.44, 0.65, 72.20, and 87 for tensile strength, burst strength, whiteness, and brightness, respectively. Measuring the optical density of the deinked handset after printing showed that the printability of the deinked paper is in the desired range.

在传统的脱墨工艺中，需要大量的化学药品，这使得这些方法昂贵且污染。同样，可持续材料的应用意味着使用绿色工艺来减少浪费和污染。绿色酶促脱墨工艺是对环境有负面影响的那些技术的替代方法。在这项工作中，我们基于系统的实验模式将响应面方法应用于电子照相打印纸的脱墨。研究了包括时间，温度和酶用量在内的酶促脱墨参数对手抄纸性能的个体和交互作用。进行了不同的分析，以确定酶促脱墨的最佳工艺条件，以优化手抄纸的性能（即拉伸，破裂，白度和亮度）。烘箱干燥的纤维在45分钟，43°C和1 mg / 15 g的酶浓度下获得的响应分别为抗张强度，破裂强度，白度和亮度，分别为12.44、0.65、72.20和87。测量印刷后的脱墨手机的光密度，表明脱墨纸的可印刷性在所需范围内。