Purple fabric reflects 88 per cent of solar radiation and stays 6.2 degree Celsius cooler in tests

Representation pic/iStock

Researchers have developed a purple fabric that reflects nearly 88 per cent of solar radiation and emits 96.4 per cent of mid-infrared heat into space.

Made with microscopic fibers containing zinc oxide nanoparticles and a metal-organic framework, it stayed up to 6.2°C cooler than standard purple cotton in tests.

By reflecting green light - typically a major source of heat absorption - this breakthrough enables high-performance passive cooling without relying solely on white textiles.

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