Bolt Threads Innovates Programmable Silk Filament like Spider Silk


Engineered silk developed by bolt threads. It is one kind of synthetic spider silk.

Engineered silk, a great innovation in textile and apparel sector by a startup called Bolt Threads. By producing silk on the lab, Bolt threads doesn’t have to rely on thousands of silkworms for silk yarns. And its production methods give great flexibility to innovate and be efficient it its use of natural resource.

In past several companies have produced artificial silk for small-scale applications, it can’t be widely used to create new kinds of tough, durable, lightweight, petroleum-free materials unless it can be made in very large volumes. Bolt Threads have found a way.

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As Bloomberg recently reported Bolt Threads has already developed an exact replica of spider silk without spiders. (Bloomberg)

At Bolt Threads, genetically engineered yeast brew silk proteins that can be spun into fibers. The properties of those fibers can be altered by tinkering with the protein concentration and the temperature, tension, and other aspects of the spinning process.

The company says its first products will be in consumer apparel in 2016. Its fibers, which are much finer than natural materials like cotton and stronger than nylon, could lend clothes the best qualities of both natural and artificial fibers. These fibres would be soft and light, while durable enough to toss in the wash repeatedly. However, the company won’t specify which properties it aims to achieve in its early products. (

Widmaier, Founder of Bolt threads, says they can make spider silk that’s stronger, stretchier, or waterproof, for example, depending on preference. (

Technology behind spider silk: Bolt Threads uses proprietary technologies to create Engineered Silk fibers based on proteins found in nature. These programmable fibers, which can be tuned to provide superior comfort and performance, represent the most significant innovation the textile industry has seen for decades.

About Bolt Threads

The material world is about to get a whole new material. Bolt Threads is creating the next generation of performance fibers and fabrics using proprietary breakthroughs in industrial biotechnology. Working at the molecular level, Bolt Threads will transform the textiles market, turning renewable raw materials into products with outstanding properties that meet specific consumer needs. Bolt Threads is backed by Foundation Capital, Formation 8, and Founders Fund, and is based in Emeryville, California.


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Online Clothing Study: Bolt Threads Innovates Programmable Silk Filament like Spider Silk
Bolt Threads Innovates Programmable Silk Filament like Spider Silk
Engineered silk developed by bolt threads. It is one kind of synthetic spider silk.
Online Clothing Study
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