# Wearable Cooling Textiles of Thermal Conduction and Sweat Transfer for Personal Thermal Management

## TL;DR

A new cooling textile was developed that efficiently manages heat and moisture, providing better thermal comfort in hot conditions.

## Contribution

The novel wearable cooling textile integrates thermal conduction and unidirectional moisture transfer using a 3D laminating method.

## Key findings

- The textile has a thermal conductivity of 0.315 W·m−1·K−1 and a moisture transport index of 476%.
- It achieves a high water evaporation rate of 5209.92 g/m2/day and reduces skin temperature by 4.1°C compared to cotton.
- The 3D thermal conductive network and Janus wetting structure enable omnidirectional heat dissipation and unidirectional moisture transfer.

## Abstract

Given rising global temperatures, advanced protective textiles hold significant potential to enhance productivity, conserve energy, and improve personal thermal comfort. Extensive research has shown that both thermal conduction and moisture management are equally critical in determining the comfort performance of textiles. Here, we propose a wearable cooling textile (WCT) that integrates thermal conduction and unidirectional moisture transfer through a 3D laminating method. Using thermally conductive fibers. By constructing a 3D thermal conductive network and a double‐layer Janus wetting structure, boron nitride nanosheet (BNNS) attached to the 3D framework, endowing the textile with omnidirectional heat dissipation (thermal conductivity of 0.315 W·m−1·K−1), unidirectional moisture‐wicking properties (transport index of 476%), and a high water evaporation rate (WER, 5209.92 g/m2/day). Compared with commercial cotton fabrics, the WCT reduces temperature by up to 4.1°C due to its cooling mechanism. Thus, this work provides a promising strategy for developing textiles that can effectively regulate both heat and moisture under diverse and demanding environmental conditions.

This study constructs a three‐dimensional thermal‐conductive pathway using biomass‐based fibers. The thermally conductive composite fibers were designed into Janus‐structured fabrics. The wearable cooling textile exhibits unidirectional moisture‐wicking properties (476% index), a high water evaporation rate (5209.92 g/m2/day), and effective skin‐cooling performance (reducing temperature by 4.1°C compared to traditional textiles), meeting key demands for personal thermal management.