High-grade textiles (e.g. Cashmere, Pashmina and other natural fibers) are nowadays often counterfeited. Cashmeres shawls labeled as 100% Pashmina can be made out of almost 100% polyester or other synthetic fibers. For this reason, a tool to proof the fabric composition declared on the label is very desirable. The object of this invention is a reliable method to determine the type and the nature of a fiber. The characteristic diffraction pattern of the fiber, recorded with an USB camera, enables the determination of the thickness, the surface structure as well as the grade of transparency and eventually the internal structure of the fiber. On the base of this information a reliable identification of the fiber material is provided.
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Dipl.-Ing. Alfred Schillert
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