Development of Method for Analyzing Internal Properties of Coated Paper : Image Analysis Using X-ray Microtomography

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This paper reports a technique, based on analysis of X-ray micro-tomography images to analyze the internal properties of coated paper through the thickness direction (ZD) . The image analysis method for paper applications using μCT have been developed by a few groups, but the method that can analyze these images to obtain the full range of properties in detail has not been presented before.<BR>The internal properties include formation and fiber orientation distribution through the thickness direction (ZD) , as well as ash and pore distribution in x-y-and z-directions. The image analysis technique involved many steps including axial conversion, filtering, binarization, skeletonization and alignment. The method is applied for analysis of two kinds of coated paper and the results provide interesting insight for papermaking.
紙パルプ技術協会の論文