| 摘要 |
PROBLEM TO BE SOLVED: To improve adhesive strength between a base layer and a surface layer of a ceiling material. SOLUTION: This interior ceiling material consists of a first layer 2, formed by laminating a film layer 6 on a lower surface of a back layer 5 made of a nonwoven fabric, a second layer 3 formed by laminating the web layers 8, 9 having the air permeability and made of a thermoplastic resin, on the upper and lower surface of a base layer 7, and a third layer 4 formed by adhering a facing layer 11 on a lower surface of a surface layer 10 made of a nonwoven fabric, the second layer 3 is interposed between the first layer 2 and the third layer 4 in a molten of the web layers 8, 9 state by heating with the hot air, and the layers 2, 3, 4 are pressed and molded by means of a mold, so that the first layer 2, the second layer 3 and the third layer 4 are adhered and integrated to each other by the hot melt of the web layers 8, 9.
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