基于图像技术的喷墨打印纸表面孔隙分析

目的利用图像技术量化纸张表面孔隙结构,并分析孔隙与纸张表面性能的关系。方法使用拉普拉斯算子和中值滤波,处理喷墨打印纸表面扫描电镜图片(SEM),提取出喷墨打印纸表面孔隙结构,对不同粒径分布的Si O2形成的涂层孔隙进行量化和对比,得到孔的个数、面积、面积方差及面积分布情况,探讨了孔面积和分布对纸张表面性能如光泽度、粗糙度、平滑度的影响。结果 Si O2粒径分布影响纸张表面孔隙的个数、面积和均匀程度,进一步影响纸张的表面性能。Si O2粒径分布越宽,形成的孔隙个数越多,面积越大,孔隙越不均匀,所得到的表面越粗糙,平滑度和光泽度也越低。结论利用图像技术可以量化涂层表面的孔隙情况,为喷墨打印纸表面孔隙及表面性能的研究提供了可以借鉴的方法。

Pore Analysis of Inkjet Paper Surface Based on Image Technology

The aim of this work was to quantify the pore structure and analyze the relationship between pore and surface properties of paper using image technology. Laplacian operator and median filtering algorithm were used to analyze the scanning electron microscope picture (SEM). The information of surface pore structure on the inkjet paper was extracted, and the coating pores formed by SiO2 with different pore size distribution were quantified and contrasted with each other. The number, area, area variance and area distribution were obtained, and the effects of pore area and distribution on the paper surface properties such as glossiness, roughness and smoothness were investigated. The size distribution of silicon affected the amount, area, and uniformity of pores on the paper surface, and thus affected the surface performance of the paper. The wider the size distribution of silicon, the higher the amount and area of the pores formed, with the increase of the uniformity, the roughness of the surface increased, while the smoothness and glossiness decreased. In conclusion, image technology could be used quantify the pore information on the paper coating surface, which provides reference for the study of pores and properties of the inkjet paper surface.