| 摘要 |
PROBLEM TO BE SOLVED: To reduce the bleeding of a urethane liquid to the surface of a non- woven fabric at the time of molding, and to prevent noises by the friction with a steel material such as a spring from being generated for a seat pad equipped with the non-woven fabric as a backing material. SOLUTION: This seat pad 1 is obtained by setting the non-woven fabric 4 in a molding die 5, injecting an expandable urethane liquid 8 and performing expansion-molding. In this case, the non-woven fabric 4 is expanded integrally with the surfaces of areas which come into contact with the steel material such as the spring 2 in the expansion-molded polyurethane foam for the seat pad 1. In the seat pad 1, as the non-woven fabric 4, a non-woven fabric being constituted of a fiber of which the cross sectional shape is flat, and of which the air permeability is 20 to 200 cc/cm<SP>2</SP>/second is used. COPYRIGHT: (C)2004,JPO |
