| 摘要 |
<p>In the manufacture of shoes with soles completely coated with natural or synthetic leather, the hollow metallic matrix (HFT1) is lined with the coating leather (UM). Then a thermosetting resin is poured into the lined matrix, the former having reached its reaction temperature and which can form a foam. A corresponding shutting mold (SFT1) is lined with the desired leather (UM); this mold can be the shoe tree which supports the uppers. The mold is shut and the leather which projects acts as an impervious flange. The thermosetting resin, preferably polymethane (PUP), forms a foam when the temperature rises and fills the volume between the layers of coating leather and presses strictly against the surfaces of the mold whilst adhering internally to these layers. Thus the desired completely coated soles can be obtained. Instead of pouring the thermosetting resin, it can be injected after the mold has been shut and after disengaging the injection apertures. The coating which is situated inside the shoe can be supplied with a special internal sole. Shoes with soles completely coated with natural or synthetic leather can thus be obtained. Finishing touches are practically confined to cutting the projecting edges of the leather. This method is principally utilised to manufacture sandals. The fastenings are introduced, either in the leather coating or between the coatings before the polymethane has formed a foam. </p> |
