Dudek Mariusz, Sąsiadek-Andrzejczak Elżbieta, Jaszczak-Kuligowska Malwina, Rokita Bożena, Kozicki Marek
Institute of Materials Science and Engineering, Lodz University of Technology, 90-537 Lodz, Poland.
Department of Mechanical Engineering, Informatics and Chemistry of Polymer Materials, Lodz University of Technology, 90-924 Lodz, Poland.
Materials (Basel). 2023 Oct 14;16(20):6691. doi: 10.3390/ma16206691.
This work presents the results of paper laser processing. It begins with the selection and examination of the processing parameters, then an examination of the properties of the modified papers and examples of applications of the developed modification method. The properties of laser-modified paper were studied using reflectance spectrophotometry to examine the colour aspects of the modified papers, scanning electron microscopy (SEM) and confocal microscopy for a morphological analysis, and Raman spectroscopy to analyse the papers under the influence of laser light. The influence of laser processing on the wettability of paper and the evenness of unprinted and printed paper was also investigated. The knowledge gained on paper surface modification with laser light was used to propose several applications, such as methods of marking, tactile detection, the controlled removal of optical brightener, ink, and metallised coatings from paper packaging, highlighting the design and aesthetics of paper. The developed laser-assisted method shows a promising, ecological approach to the design of many value-added paper products.
这项工作展示了纸张激光加工的成果。它首先进行加工参数的选择和研究，接着考察改性纸张的性能以及所开发改性方法的应用实例。利用反射分光光度法研究激光改性纸张的颜色方面，通过扫描电子显微镜（SEM）和共聚焦显微镜进行形态分析，并运用拉曼光谱分析激光照射下的纸张，以此来研究激光改性纸张的性能。还研究了激光加工对纸张润湿性以及未印刷和已印刷纸张平整度的影响。利用通过激光对纸张表面改性所获得的知识，提出了几种应用，例如标记方法、触觉检测、从纸质包装中可控去除荧光增白剂、油墨和金属化涂层，突出了纸张的设计和美学。所开发的激光辅助方法为许多增值纸产品的设计展示了一种有前景的、环保的途径。
