The Potential of Biofibers: Evoking New Beauty and Emotion
What would one envision upon hearing "silk made from air"? Professor Keiji Numata of Kyoto University's Graduate School of Engineering has achieved a prototype of biofiber called "AirSilk," which utilizes marine microorganisms that perform photosynthesis underwater to produce it from nitrogen and carbon dioxide in the air.
Developed in collaboration with bioventures Spiber (Tsuruoka City, Yamagata Prefecture) and Symbiove (Kyoto City), it is translucent, lightweight, and possesses strong tension. This "zero carbon" fiber, devoid of petroleum-derived materials, represents a novel material apt for the decarbonization era.
Amidst the fashion industry's growing concern over clothing waste causing environmental pollution, there is significant anticipation. Kazuhide Sekiyama, Director and Representative Executive Officer of Spiber, remarks, "Manufacturing inspired by bio-technology, which takes its cues from the regenerative systems of life, will drastically alter the world in 50 or 100 years."
Spiber has already commercialized a type of biofiber called "Brewed Protein." It has garnered global attention as a new alternative alongside fibers like cotton and wool, with collaborations with environmentally-conscious high-end brands. Users have reported its lightness, dense fiber, luxurious feel, and soft touch.
How will AirSilk, with its higher transparency compared to Brewed Protein, reshape the future of fashion? Designer Yuma Nakazato, renowned for bold designs utilizing new materials, reflects, "While functionality has been the focus in ensuring decarbonization, the challenge now lies in creating new beauty and emotional value."
From this perspective, AirSilk's current limitation of scarcity becomes a value in itself. While unsuitable for mass production, it presents an opportunity for haute couture, where designers' skills shine through. Through technology inspired by the systems of life, one can anticipate a world that values human emotions and beauty.
Original article on Nihon Keizai Shimbun:
Top Photo: Yuma Nakazato's creation incorporating biofibers into Nishijin weaving.
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