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Sakai Oubex is engaged in the development of "prepreg" using carbon fiber open-end yarns and carbon fiber open-end yarn fabrics. It can be provided in various intermediate shapes according to the application. It is also possible to change the type of resin used for impregnation, such as thermosetting resins or thermoplastic resins. This is an intermediate material for the production of CFRP (carbon fiber reinforced plastic) and CFRTP (carbon fiber reinforced thermoplastic). 【Features】 ■ Can be provided in various intermediate shapes according to the application ■ It is possible to change the type of resin used for impregnation, such as thermosetting resins or thermoplastic resins ■ Intermediate material for the production of CFRP and CFRTP *For more details, please refer to the PDF document or feel free to contact us.

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Sakai Oubex has established a manufacturing method for open fiber yarns, which are created by spreading carbon fiber bundles into tape form, based on patented technology from Fukui Prefecture. Our carbon fiber products fall under the list of regulated goods specified in the Export Trade Control Order, Appendix 1. Additionally, products made using these materials may also be classified as regulated goods. 【Features】 - Our open fiber yarns and open fiber woven fabrics are thinner compared to conventional products. - Due to their thinness, when made into fabric, they have fewer surface irregularities and less reduction in strength. - Both open fiber yarns and open fiber woven fabrics are thin, making resin impregnation easier. *For more details, please refer to the PDF materials or feel free to contact us.

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The "open fiber woven fabric" made from carbon fiber open yarns is characterized by being thin, lightweight, having minimal irregularities, a small weaving angle, excellent resin impregnation properties, and difficulty in interlayer delamination, demonstrating superior fatigue characteristics with high material property values. Laminates produced using "carbon fiber open yarn woven fabric" have resin and carbon fibers uniformly dispersed, resulting in improved mechanical strength. Additionally, laminates using "open fiber woven fabric" are less prone to transverse cracking and have reduced interlayer delamination, leading to enhanced fatigue strength. 【Advantages (Fiber Bundles)】 ■ Thin, lightweight, minimal irregularities, small weaving angle ■ Excellent resin impregnation properties, difficult interlayer delamination ■ High material property values indicating superior fatigue characteristics *For more details, please refer to the PDF document or feel free to contact us.

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Sakai Ovex is promoting the development of carbon fiber as a new business in the non-apparel sector. "Carbon fiber" not only has the characteristics of being lightweight, strong, and corrosion-resistant, but it also excels in conductivity, heat resistance, dimensional stability, and chemical stability. Due to its excellent properties, it is used as advanced material in various fields such as aerospace, construction, civil engineering, vehicles, and ships, and its applications are further expanding. [About Open Fiber] - The process of spreading carbon fiber bundles, which are used as reinforcement materials for carbon fiber composite materials, into a wide and thin state is called open fiber. - Based on a patented technology from Fukui Prefecture, a manufacturing method for open fiber that spreads carbon fiber bundles into tape form has been established. - Thousands to tens of thousands of carbon fibers are spread out in the width direction, and the cross-section is flat. *For more details, please refer to the PDF document or feel free to contact us.

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"OVEX Fabric" is a carbon fiber intermediate molding material that is thinner and lighter than conventional fabrics. By controlling the width of the open fibers, the fiber weight (FAW) can be designed arbitrarily. We can provide fabrics using various types of carbon fibers, from standard types to high-elasticity types. Additionally, we also offer resin-impregnated intermediate materials "prepreg" and "semi-prepreg." 【Features】 ■ Thinner and lighter than conventional fabrics ■ Fiber weight (FAW) can be designed arbitrarily ■ Fabrics can be provided using various types of carbon fibers *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces the mechanical strength and internal damage suppression effects of CFRP and CFRTP with a thin-layer structure. It explains the improvement of mechanical properties due to the reduction of crimp angle associated with thinning, as well as the bending strength of open-fiber woven CFRP laminates, using graphs and photos. Please take a moment to read it. [Contents] ■ Improvement of mechanical properties due to the reduction of crimp angle associated with thinning ■ Internal damage suppression effects of thin-layer CFRP composites ■ Bending strength of open-fiber woven CFRP laminates *For more details, please refer to the PDF document or feel free to contact us.

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It is also possible to change the type of resin to be impregnated, such as thermosetting resins or thermoplastic resins.

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