The mechanical properties of paper coating layers are important in various processes and applications. Proper evaluation of the coating layers is essential for improving coating layer design. In this study, a novel method for the evaluation of the mechanical properties of coating layers was developed using a surface and interfacial characterizing analysis system (SAICAS) instrument, which has an important advantage of not requiring any special sample preparation process. Failure analysis results showed that the SAICAS method provided uniform and reproducible sectioning of the coating layer regardless of the layer's mechanical strength, indicating this is suitable for measuring the mechanical properties of coating layers. The influence of the spreading of latex binder on the final properties of the coating layer was examined and its correlations with structural properties were quantitatively analyzed. This was applied to analyze the mechanical, topographical, and optical properties of coating layers. The results showed that the peel strength and gloss were highly correlated with the spreading of latex. The chemical composition of S/B latex also influenced the peel strength of the coating layer. The transitions observed in the length distribution of pigment–binder interfaces greatly influenced the properties of the coating layer, including peel strength, gloss, and light-scattering efficiency.

纸涂层的机械性能在各种工艺和应用中都很重要。涂层的正确评估对于改进涂层设计是必不可少的。在这项研究中，使用表面和界面表征分析系统 (SAICAS) 仪器开发了一种评估涂层机械性能的新方法，该方法具有不需要任何特殊样品制备过程的重要优势。失效分析结果表明，无论涂层的机械强度如何，SAICAS 方法都能提供均匀且可重复的涂层切片，表明这适用于测量涂层的机械性能。检查了乳胶粘合剂的铺展对涂层最终性能的影响，并定量分析了其与结构性能的相关性。这被用于分析涂层的机械、形貌和光学特性。结果表明剥离强度和光泽度与胶乳的铺展高度相关。S/B 胶乳的化学成分也影响涂层的剥离强度。在颜料-粘合剂界面的长度分布中观察到的转变极大地影响了涂层的性能，包括剥离强度、光泽度和光散射效率。结果表明剥离强度和光泽度与胶乳的铺展高度相关。S/B 胶乳的化学成分也影响涂层的剥离强度。在颜料-粘合剂界面的长度分布中观察到的转变极大地影响了涂层的性能，包括剥离强度、光泽度和光散射效率。结果表明剥离强度和光泽度与胶乳的铺展高度相关。S/B 胶乳的化学成分也影响涂层的剥离强度。在颜料-粘合剂界面的长度分布中观察到的转变极大地影响了涂层的性能，包括剥离强度、光泽度和光散射效率。