Device that can evolve steam

摘要

The device of the present invention comprises a moisture-permeable base material, a water-bearing gel, and a covering material, which are laminated in this order. The base material comprises a moisture-permeable material, e.g., a cloth material made of a natural and/or artificial fiber, a polymeric film, or a polymeric sheet. The base material may be a laminate. The water-bearing gel comprises a water-absorbable polymer and water. The covering material may comprise a cloth material made of a natural and/or artificial fiber, a polymeric film, or a polymeric sheet. The device can be warmed or cooled. When it is warmed, it can evolve steam that results from water in the gel. Thus, it can be used to give moisutre to and warm up human body, or to cool down it.