| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly durable cushion material whose elasticity is not deteriorated even after long-time use, and a method of manufacturing the cushion material. SOLUTION: The cushion material 1 is formed of dried silkworm cocoons 2. The content of a dried silkworm cocoon 2 is extracted and the empty silkworm cocoon 2 is filled with floss silk 3 through small apertures 2b, and a sericin film 5 is formed on the whole surface of the silkworm cocoon 2 (the whole surface of an outer shell 2a). The floss silk 3 is obtained by attaching sericin (glue) separated from another empty silkworm cocoon to the floss silk obtained from the other empty silkworm cocoon. The floss silk 3 is firmly attached to the inner wall of the silkworm cocoon 2, and fibers of the floss silk 3 are bonded to each other and solidified. Accordingly, the initial state of the silkworm cocoon 2 evenly filled with the floss silk 3 is retained without movement of the floss silk 3 inside the silkworm cocoon 2 after the long-time use. COPYRIGHT: (C)2009,JPO&INPIT
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