| 摘要 |
PROBLEM TO BE SOLVED: To provide interior parts for vehicles which hardly causes disposal problems. SOLUTION: Materials constituting interior parts for vehicles are made of a biodegradable material. The interior part for vehicles is used for a headrest preferably. When the headrest is comprised of a stay fixed to an upper end of a seatback, a base material which is fixed to the front surface of the stay or to both front and back surfaces of the stay and has a configuration to exhibit energy absorbency, a cushion material fixed to the surface of the base material, and an outer cover material covering the cushion material, the base material, the cushion material, and the outer cover material are made of the biodegradable material.
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