Some traditional Japanese fabrics, particularly those from Nishijin, Kyoto are woven from carbon fibers. When woven, the aligned carbon fibers show strong light reflection and generate a glitter effect depending on the weave structure. Seven traditional carbon fiber fabrics of different weaves were presented to 30 participants for a visual sensory evaluation of their stereoscopic effects. The contrast of lightness was related to the stereoscopic feeling of the participants, depending on the weave structure. The visual evaluation showed that three traditional Japanese weave designs "Sayagata Shamon," "Arrange Shamon," and "Chuya Shamon" had strong stereoscopic effects. In the case of Chuya Shamon, dark hollow spots appeared with a larger receiving angle. The light reflection was more obvious for Arrange Shamon. The participants could identify the differences in the height of the arch from the area of light and shadow. The strongest stereoscopic impression was perceived for the Sayagata Shamon sample. Thick and thin lines appeared under the light, emphasizing stereoscopic perception. The lightness values were measured by using a goniospectro-photometric system with a combination of illumination and viewing angles. Based on changes in lightness, viewing angles, and the contrast of shadow and shine, further stereoscopic designs can be created.

Carbon Fiber Reinforced Thermoplastic (CFRTP) is drawing attention, currently in practical use, to shorten a manufacturing time and to reduce manufacturing cost. Though investigation for utilizing CFRTP is conducted flourishingly, the manufacturing method of CFRTP having enough performance has not been established yet. High viscosity of thermoplastic matrix disturbs good molding. The effective intermediate material is necessary. In this report, we used UD tape (SHINDO, TP CA143) that is slit from poly-amid film impregnated carbon fiber spread tow. We tried to produce CFRTP tube by using hot-press processing prepreg that is braided by these UD tapes. Braided prepreg consists of braiding yarns and axial yarns. Determination of the mechanical properties of a composite structure is essential to be applied in accordance with its requirements. We prepared three kinds of samples with different numbers of axial yarn and bending properties of CFRTP were determined by bending tests. Bending strength was proportional to the number of axial yarn and a small number of axial yarns showed ductile fracture, whereas a large number of axial yarns showed brittle fracture.