Abstract
Cellulose diacetate fiber, derived from renewable wood and recycled cellulose, is valued in textiles for its sustainability yet remains underexplored regarding comfort properties. This study systematically investigates the thermal–wet and contact comfort of diacetate blend fabrics with cotton, polyester, and wool using both subjective and objective assessments. Results show that fabrics containing higher diacetate content exhibit up to a 730.98% increase in air permeability and a 98.03% rise in capillary wicking height compared with 100% cotton controls. In polyester–diacetate blends, stiffness is reduced by 27.02% and electrostatic half-life by 98.12%, highlighting improvements in softness and antistatic performance. By applying grey system theory and the entropy-weighted TOPSIS method, the optimal overall comfort is achieved at a 68% diacetate and 32% cotton ratio. This composition outperforms other blends across key indicators, such as moisture absorption, quick-dry capability, and skin-friendliness, offering a strong scientific reference for the design of comfortable, sustainable textile products. These findings underscore the synergy between diacetate and other fibers in enhancing garment comfort and advancing environmentally conscious textile manufacturing.
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