| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mask which can hold water for a long period of time and therefore can surely prevent drying of the throat during sleep. <P>SOLUTION: This absorptive core is fitted to the mask, can hold water-retention liquid and has a fiber material with a basis weight of 200 to 1,000 g/m<SP>2</SP>. <P>COPYRIGHT: (C)2008,JPO&INPIT |
