Sumitomo Metal Mining launches sunlight-absorbing material

Sumitomo Metal Mining has developed Solament, a groundbreaking material technology that utilizes patented material to absorb near-infrared rays (NIR) present in sunlight. Following its success in Japan, this nanoscale particle technology made its debut in the United States at South by Southwest (SXSW), showcasing its flagship prototypes, including the transparent Down-Less Down Jacket.

Shuichi Ogasawara, managing executive officer and general manager of advanced materials at Sumitomo Metal Mining, expressed excitement about showcasing Solament at SXSW, heralding a new era of sustainable innovation. This milestone signifies a significant step in their mission to introduce new possibilities worldwide.

Solament is a unique material designed to absorb NIR from sunlight, generating heat within the material itself. Tests revealed that while regular gloves experienced a temperature increase of 43.5 degrees Fahrenheit, Solament gloves showed a temperature increase of 66.9 degrees Fahrenheit. This makes Solament ideal for winter apparel, providing sufficient heat without the need for bulky layers, as demonstrated by the company’s Down-Less Down Jacket.

The transparent jacket utilizes Solament’s light-to-heat transformation properties in the fabric, producing heat beyond what is evident from its appearance. It also blocks the 850-1200nm range of sunlight, offering heat protection based on the material’s placement. This is showcased in the Shade-Less Sun Hat, which can reduce temperatures by 41-50 degrees Fahrenheit. Furthermore, Solament provides protection against infrared-based illicit activities, such as cameras “seeing through” bathing suits, an issue encountered by the Japanese Olympic swim team.