| 摘要 |
A cushioning material composed of a drafted three-diamentionally crimped filament mass of a synthetic fiber by bonding contact points between each of the filament with an adhesive, wherein the filament crimped in various shapes formed by partially expanding and compressing the filament crimps at required specific portions in the cushioning material with directionality in required specific directions are distributed with partially increased density in the degree of entanglement. |
