| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a low air permeable seat trim cover used for integral foaming of wadding, in which a double layer structure of a surface material and a wadding material are employed, a uniform low air permeable layer can be formed on the surface of the wadding material without the surface material, urethane foaming solution can be prevented from penetrating into the wadding material to prevent occurrence of uneven partial hardness upon integral foaming the wadding, a touch feeling is kept, a soft touch feeling can be secured on the surface of the formed product, furthermore, time and labor in a separate process is not required and the integral foaming is carried out in a laminating process, and a resin film used in a barrier layer is eliminated to reduce material cost to achieve low cost production. <P>SOLUTION: While moving a band shape wadding material 12 continuously in one direction, one face 13 of the band shape wadding material 12 is heated and fused. Simultaneously, while a band shape surface material 15 is moved in one direction continuously, the material is continuously piled up on the fused one face 13 of the band shape wadding material 12 and adhering and laminated. Then the other face 14 of the band shape wadding material 12 is heated and fused, and during fusing, cell films of the wadding are extended while being crushed to form a uniform low air permeable layer 37. <P>COPYRIGHT: (C)2012,JPO&INPIT |
