Bio-based bilayer diaper fabric with passive cooling and moisture management
A bio-based, thin bilayer diaper fabric that passively cools skin by 2.5 °C, moves moisture away from the skin, and provides antibacterial comfort. Designed as an acquisition-distribution layer (ADL) for diapers, it uses bamboo yarns and skin-friendly materials with an estimated cost of $0.02–0.05/m². Demonstrated on clothed skin at TRL 5 and currently being optimized for commercial integration.
Overview
This is a bio-based, thin bilayer fabric engineered for diaper applications, specifically as an acquisition-distribution layer (ADL). It provides passive cooling, moisture dissipation, and antibacterial comfort, helping reduce skin irritation and supporting sensitive or rash-prone skin.
The fabric has demonstrated a passive cooling effect of 2.5 °C on clothed skin. With an estimated material cost of $0.02–0.05/m², it is designed to be a practical, scalable addition to commercial diaper manufacturing.
Technical specifications
The fabric uses a bilayer construction:
- The skin-facing side contains fewer bamboo yarns than the opposite side, promoting perspiration transfer away from the skin and toward the ADL while supporting vapor transport.
- Edge bonding and bamboo-yarn interconnection integrate the two layers into a thin, flexible structure.
All materials and chemicals used are bio-based, skin-friendly, and commercially used in cloth item production or available at large scale. The fabric provides soft, gentle cooling, efficient sweat dissipation, and antibacterial properties.
Current optimization efforts focus on thickness, porosity, and yarn distribution to improve thermal performance while preserving absorption, comfort, dimensional fit, and breathability. The fabric has been tested for two consecutive days and is being evaluated for use in finished diaper formats under controlled humidity.
Technology readiness level
The technology is at TRL 5. Relevant diaper fabric performance has been demonstrated on clothed skin.
Next steps include optimizing material ratios and thickness, validating selected fabrics against reference diapers using agreed protocols and acceptance criteria, and assessing material integration and manufacturing compatibility. The final deliverable will include material and dimension specifications, a comparative performance report, cost and equipment estimates, and recommendations for scale-up.
About Syracuse University
Syracuse University is a comprehensive private research university in upstate New York, pairing fundamental inquiry with applied, industry-facing work. Industry engagement is anchored by a downtown innovation campus with co-located university–industry labs, pilot-scale testbeds, and flexible prototyping spaces. A centralized corporate partnerships office and experiential learning pipelines link R&D teams to faculty and student talent through sponsored research, internships, and capstone collaborations. Research is supported by competitive federal funding from agencies such as the National Science Foundation, National Institutes of Health, the Department of Energy, and the Department of Defense. A dedicated technology transfer office and campus-linked incubators streamline IP, licensing, and startup formation.
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