| 摘要 |
<p>PURPOSE:To obtain a hygroscopic material with appropriate persistent hygroscopic properties especially to a human body by using jointly silica gel and a hygroscopic agent with different hygroscopic properties. CONSTITUTION:Silica gel and a hygroscopic agent with different hygroscopic properties from the former, for instance, anhydrous magnesium sulfate are jointly used as hygroscopic agents. This hygroscopic agent of such ingredients is sealed, as a hygroscopic material, in a gas-permeable packing material such as a bag made of moisture-permeable polyethylene film-laminated unwoven cloth sheet. The hygroscopic material obtained in this way can be applied to every part of a human body, and also spread in the form of a mat over the bedding.</p> |
