| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| 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.
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