| 摘要 |
<p>A negatively charged sheet to be used in a percutaneous electroanalgesic therapy which can eliminate drawbacks involved in currently known various methods and can effectively act for a long period of time without lowering the quality of a daily life. Specifically a negatively charged sheet structure characterized by being produced by negatively electrifying a flexible sheet structure containing an open-cell layer, comprising a material having a low-energy surface, such as polyolefin or polytetrafluoroethylene, and having an apparent specific gravity of 0.01 to 0.5; and an autoadhesive analgesic skin coating material comprising the above sheet structure and a patterned pressure-sensitive adhesive layer provided thereon in such a manner that the velocity of permeation of water vapor through the sheet structure is not significantly lowered.</p> |
