Identification of Fabric Fibers and Their Blending Ratio by Terahertz Spectroscopy

2015 Fiscal Year Final Research Report

• Project/Area Number: 25350068
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Clothing life/Dwelling life
• Research Institution: Akita University
• Principal Investigator: Kurabayashi Toru 秋田大学, 工学(系)研究科(研究院), 教授 (90195537)
• Co-Investigator(Kenkyū-buntansha): Yodokawa Shinichi 秋田大学, 大学院工学資源学研究科, 助教 (90282160)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: テラヘルツ分光分析 / 繊維種識別

Outline of Final Research Achievements

We demonstrated the method for an identification of fabric fibers and their blending ratio by THz spectroscopy. The key component of this method was the sample preparation by cutting at a length of about 0.2 mm to achieve a sensitive spectroscopy of high-order structure of fibers such as crystallographic structure of cellulose. The next was the spectral analysis by multiple classification analysis after the first derivation of the spectra to achieve a quantitative assay of the blending ratio of the same species. As we demonstrated, this method enables to analyze the blending ratio of fabric fibers with considerable accuracy, even when the constituent materials are not distinguishable by traditional analytical method, since we can measure the degree of crystallographic structure of the species, or the inter-species differences of the materials.

Free Research Field

電磁波工学