Moisture absorbing / releasing member and product using said moisture absorbing / releasing member
A moisture-absorbing and releasing member with controlled permeability, dry weight, and thickness stability addresses the limitations of existing materials, enabling efficient moisture management and processability for applications like filters and dehumidifying devices.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- JAPAN EXLAN CO LTD
- Filing Date
- 2025-11-07
- Publication Date
- 2026-06-04
AI Technical Summary
Existing moisture-absorbing materials, both inorganic and organic, face issues such as hygroscopicity, morphological instability, low moisture absorption capacity, slow absorption rates, and poor processability, making them unsuitable for repeated use and efficient moisture management.
A moisture-absorbing and releasing member is created by applying a coating solution containing a hygroscopic polymer and a binder to a base paper with specific ISO permeability, ensuring the coated member has permeability below a certain threshold, maintaining dry weight and thickness stability, and allowing for controlled elongation, thereby enhancing both moisture absorption and release properties while being processable.
The solution achieves effective moisture absorption and release with improved processability, suitable for use in filters, dehumidifying devices, and water generating devices, without detaching or causing processing defects.
Smart Images

Figure JP2025039052_04062026_PF_FP_ABST