Ismail, M.Y., Patanen, M., Kauppinen, S. et al. Surface analysis of tissue paper using laser scanning confocal microscopy and micro-computed topography. Cellulose 27, 8989–9003 (2020). https://doi.org/10.1007/s10570-020-03399-w
Surface analysis of tissue paper using laser scanning confocal microscopy and micro-computed topography
|Author:||Ismail, Mostafa Y.1; Patanen, Minna2; Kauppinen, Sami3;|
1Fibre and Particle Engineering, University of Oulu, P.O. Box 4300, Oulu, 90014, Finland
2Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, P.O. Box 3000, Oulu, 90014, Finland
3Research Unit of Medical Imaging, Physics, and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
4UPM-Kymmene Corporation, R&D Department, UPM Research Center, Lappeenranta, 53200, Finland
5Division of Solid Mechanics, Lund University, 22100, Lund, Sweden
6Lund Institute of Advanced Neutron and X-ray Science, Lund, Sweden
|Online Access:||PDF Full Text (PDF, 4 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2020082864529
|Publish Date:|| 2020-08-28
Tissue paper softness relies on two major factors, the bulk softness, which can be indicated by the elasticity of the sheet, and surface softness. Measurement of surface softness is complicated and often requires a multi-step process. A key parameter defining surface softness is the topography of the surface, particularly the crepe structure and its periodicity. Herein, we present a novel approach to measure and quantify the tissue paper surface crepe structure and periodicity based on the detection of waviness along the sample using laser scanning confocal microscopy (LSM) and X-ray tomography (XRT). In addition, field emission scanning electron microscope (FESEM) was used to characterize the tissue paper surface. We demonstrate that surface topography is directly correlated to the erosion of the doctor blade, which is used to remove the dry tissue paper from the Yankee cylinder. Because of its accuracy and simplicity, the laser confocal microscopy method has the potential to be used directly on the production line to monitor the production process of the tissue paper. XRT revealed more structural details of the tissue paper structure in 3D, and it allowed for the reconstruction of the surface and the internal structure of the tissue paper.
|Pages:||8989 - 9003|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
216 Materials engineering
This work was supported by the I4Future doctoral program, which is part of the European Union’s Horizon 2020 research and innovation program under Marie Skłodowska-Curie Grant Agreement No. 713606.
|EU Grant Number:||
(713606) I4FUTURE - Novel Imaging and Characterisation Methods in Bio, Medical, and Environmental Research and Technology Innovations
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