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<p>The growing global demand for energy for temperature regulation underscores the urgency of developing advanced personal thermal management textiles. However, current radiative cooling/heating materials often lack dynamic adaptability, efficient moisture management, diverse coloration, and satisfactory wearing comfort. Herein, we present colorful Janus metafabrics (CJMs) engineered via scalable solution-dyeing electrospinning, featuring a dual-gradient structure for radiative cooling and solar heating, and directional sweat transport. The metafabric consists of a hydrophobic carbon black/polyurethane (CB/PU) heating layer and a superhydrophilic aluminum oxide (Al<sub>2</sub>O<sub>3</sub>)/pigment-doped PU cooling layer. The cooling side exhibits approximately 95% MIR emittance, &gt; 85% NIR reflectance, and 86% solar reflectance (yellow) due to synergistic Al<sub>2</sub>O<sub>3</sub> scattering and dyeing (67%–86%), compensating for the limitations of conventional dyes. The heating side achieves around 95% solar absorptance for efficient photothermal conversion. Outdoor tests demonstrate significant cooling Δ<i>T</i> = 17.6&#xa0;°C and heating Δ<i>T</i> = 13.3&#xa0;°C effects compared to bare simulated skin. Asymmetric wrinkles enhance optical properties and facilitate rapid directional moisture transport, with a one-way transfer index reaching 1163%. CJMs are ultralight, flexible (153%–175% strain), soft, and feature Janus textures, ensuring wearing comfort. This work provides a versatile design integrating energy efficiency, physiological comfort, and aesthetic diversity, offering a promising pathway toward next-generation smart textiles.</p> Graphical Abstract <p></p>

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Colorful Janus Metafabric Enabled by Dual-Gradient Wrinkle Microstructures for Personal Thermal and Moisture Management

  • 期刊论文

  • 发表日期：

    2026年4月30日

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  • Ningbo Cheng,
  • Junyu Li,
  • Na Meng,
  • Chao Wang,
  • Yuyan Fang,
  • Xinyi Meng,
  • Renhai Zou,
  • Xianfeng Wang,
  • Zhaohui Wang,
  • Jianyong Yu,
  • Bin Ding

摘要

The growing global demand for energy for temperature regulation underscores the urgency of developing advanced personal thermal management textiles. However, current radiative cooling/heating materials often lack dynamic adaptability, efficient moisture management, diverse coloration, and satisfactory wearing comfort. Herein, we present colorful Janus metafabrics (CJMs) engineered via scalable solution-dyeing electrospinning, featuring a dual-gradient structure for radiative cooling and solar heating, and directional sweat transport. The metafabric consists of a hydrophobic carbon black/polyurethane (CB/PU) heating layer and a superhydrophilic aluminum oxide (Al2O3)/pigment-doped PU cooling layer. The cooling side exhibits approximately 95% MIR emittance, > 85% NIR reflectance, and 86% solar reflectance (yellow) due to synergistic Al2O3 scattering and dyeing (67%–86%), compensating for the limitations of conventional dyes. The heating side achieves around 95% solar absorptance for efficient photothermal conversion. Outdoor tests demonstrate significant cooling ΔT = 17.6 °C and heating ΔT = 13.3 °C effects compared to bare simulated skin. Asymmetric wrinkles enhance optical properties and facilitate rapid directional moisture transport, with a one-way transfer index reaching 1163%. CJMs are ultralight, flexible (153%–175% strain), soft, and feature Janus textures, ensuring wearing comfort. This work provides a versatile design integrating energy efficiency, physiological comfort, and aesthetic diversity, offering a promising pathway toward next-generation smart textiles.

Graphical Abstract