| 摘要 |
The present specification describes and claims a method and apparatus for producing a material in the form of a padded sheet, from a number of superposed layers of synthetic material. The layers basically comprise a cover sheet and a base sheet made of a material having elastic cells which are capable of being compressed. In this material, the elastic cells of the base sheet are crushed locally according to the outline of the required design for the quilting and padding and the crushed cells are blocked permanently, at least on a portion of the thickness of the base sheet. In the apparatus, the heat is applied by a plate which contacts the underneath surface of the material, a moulding tool contacting the upper surface and the internal being compressed between the heated plate and the moulding tool to provide heat welding only at the internal compressed regions determined by the tool design. |
