| 摘要 |
PROBLEM TO BE SOLVED: To provide a genuine leather (processed natural leather) excellent in sound absorption property and sound insulation property and its preparation process. SOLUTION: The genuine leather 1 is characterized in that, in the grain side fiber layer 2 of the natural leather, there are dispersed or fixed the bell type microcapsules 4 that occlude in the capsules fine particles and/or a liquid that can move independently of the capsules. COPYRIGHT: (C)2007,JPO&INPIT
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