Procedure for the manufacture of washers with the appearance of having ribs, ribs and other ornamental motifs arranged on their stamped surfaces (Machine-translation by Google Translate, not legally binding)

摘要

A process for the manufacture of washers with the appearance of being arranged on their surfaces, die-cuts, openings, ribs or other ornamental motifs, characterized by the fact that a previously obtained washer is taken by punched out of any material on purpose or by injection. suitable plastic material, such as polyvinyl, polyethylene, methyl methacrylate or other, colorless or not, in whose washer the drafts, punches or precise ornamental ribs are arranged, said washer being so ornamented in the appropriate noose of an instrument of molding, which washer attached to the core itself, remains inside the molding instrument without touching the walls thereof, then injecting the plastic material in fusion that completely covers said washer, the injected material being of one's own or different nature from which constitutes the aforementioned washer and preferably of different color so that they stand out moreover the drafts or drawings of the inner washer which can be seen by transparency being covered by a layer or sheath that fills the empties or openings of the same, with a material that does not make them disappear visually but that nevertheless strengthens in such a way the washer that gives it a very high degree of break resistance, even greater than that of a washer without drafts and the material itself. (Machine-translation by Google Translate, not legally binding)